appendix a leed checklist and rating system - california courts

Appendix A LEED Checklist and Rating System

For Public Use and DisplayLEED 2009 for New Construction and Major Renovations Rating SystemUSGBC Member Approved November 2008 (Updated July 2010)

LEED 2009 for NEw CoNstruCtioN aND Major rENovatioNs

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The built environment has a profound impact on our natural environment, economy, health, and productivity. Breakthroughs in building science, technology, and operations are now available to designers, builders, operators, and owners who want to build green and maximize both economic and environmental performance.

Through the LEED® green building certification program, the U.S. Green Building Council (USGBC) is transforming the built environment. The green building movement offers an unprecedented opportunity to respond to the most important challenges of our time, including global climate change, dependence on non sustainable and expensive sources of energy, and threats to human health. The work of innovative building professionals is a fundamental driving force in the green building moment. Such leadership is a critical component to achieving USGBC’s mission of a sustainable built environment for all within a generation.

USGBC MeMBerShipUSGBC’s greatest strength is the diversity of our membership. USGBC is a balanced, consensus based nonprofit with more than 18,000 member companies and organizations representing the entire building industry. Since its inception in 1993, USGBC has played a vital role in providing a leadership forum and a unique, integrating force for the building industry. USGBC’s programs have three distinguishing characteristics:

Committee-basedThe heart of this effective coalition is our committee structure, in which volunteer members design strategies that are implemented by staff and expert consultants. Our committees provide a forum for members to resolve differences, build alliances, and forge cooperative solutions for influencing change in all sectors of the building industry.

Member-drivenMembership is open and balanced and provides a comprehensive platform for carrying out important programs and activities. We target the issues identified by our members as the highest priority. We conduct an annual review of achievements that allows us to set policy, revise strategies, and devise work plans based on members’ needs.

Consensus-focusedWe work together to promote green buildings, and in doing so, we help foster greater economic vitality and environmental health at lower costs. We work to bridge ideological gaps between industry segments and develop balanced policies that benefit the entire industry.

Contact the U.S. Green Building Council 2101 L Street, NW Suite 500 Washington, DC 20037 (800) 795-1747 Office (202) 828-5110 Fax www.usgbc.org

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CopyriGht Copyright © 2009 by the U.S. Green Building Council, Inc. All rights reserved.

The U.S. Green Building Council, Inc. (USGBC®) devoted significant time and resources to create this LEED® Rating System. USGBC authorizes individual use of the LEED Rating System. In exchange for this authorization, the user agrees:

1. to retain all copyright and other proprietary notices contained in the LEED Rating System,

2. not to sell or modify the LEED Rating System, and

3. not to reproduce, display, or distribute the LEED Rating System in any way for any public or commercial purpose.

Unauthorized use of the LEED Rating System violates copyright, trademark, and other laws and is prohibited.

DiSClaiMerNone of the parties involved in the funding or creation of the LEED Rating System, including the USGBC, its members, its members, volunteers, or contractors, assume any liability or responsibility to the user or any third parties for the accuracy, completeness, or use of or reliance on any information contained in the LEED Rating System, or for any injuries, losses, or damages (including, without limitation, equitable relief ) arising from such use or reliance. Although the information contained in the LEED Rating System is believed to be reliable and accurate, all materials set forth within are provided without warranties of any kind, either express or implied, including but not limited to warranties of the accuracy or completeness of information or the suitability of the information for any particular purpose.

As a condition of use, the user covenants not to sue and agrees to waive and release the U.S. Green Building Council, its members, volunteers, and contractors from any and all claims, demands, and causes of action for any injuries, losses, or damages (including, without limitation, equitable relief ) that the user may now or hereafter have a right to assert against such parties as a result of the use of, or reliance on, the LEED Rating System.

U.S. Green Building Council 2101 L Street, NW Suite 500 Washington, DC 20037

traDeMarkSUSGBC®, U.S. Green Building Council® and LEED® are registered trademarks of the U.S. Green Building Council.


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aCknowleDGMentSThe LEED 2009 Rating System has been made possible only through the efforts of many dedicated volunteers, staff members, and others in the USGBC community. The Rating System improvement work was managed and implemented by USGBC staff and included review and input by many Technical Advisory Group (TAG) members with oversight by the LEED Steering Committee. We extend our deepest gratitude to all of our LEED committee members who participated in the development of this rating system, for their tireless volunteer efforts and constant support of USGBC’s mission:

leeD Steering Committee Scot Horst, Chair, LSC Horst, IncJoel Ann Todd, Vice-Chair, LSC Joel Ann ToddMuscoe Martin M2 ArchitectureStuart Carron JohnsonDiversey, Inc.Holley Henderson H2 Ecodesign, LLCChristine Magar GreenformKristin Shewfelt Architectural Energy Corporation Jessica Millman Agora DCBryna Dunn Moseley ArchitectsNeal Billetdeaux JJRGreg Kats Managing Good EnergiesMark Webster Simpson Gumpertz & HegerBob Thompson EPA Indoor Environment Management Branch Malcolm Lewis Constructive Technologies Group, Inc.John Boecker 7GroupSara O’Mara Choate Construction CompanyAlex Zimmerman Rep Canada Green Building CouncilIan Theaker Rep Canada Green Building Council

Sustainable Sites taGBryna Dunn, Chair Moseley ArchitectsStewart Comstock, Vice-Chair Maryland Department of the EnvironmentMichele Adams Cahill AssociatesGina Baker Burt HillTed Bardacke Global Green USAStephen Benz SasakiMark Brumbaugh Brumbaugh & AssociatesLaura Case Emory University Campus ServicesZach Christeson the HOK Planning GroupJay Enck Commissioning & Green Building ServicesRon Hand E/FECT. Sustainable Design SolutionsRichard Heinisch Acuity Lighting GroupMichael Lane Lighting Design LabMarita Roos HNTBZolna Russell Hord Coplan Macht, Inc.Alfred Vick Ecos Environmental Design, Inc.


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water efficiency taGNeal Billetdeaux, Chair JJR John Koeller, Vice-Chair Alliance for Water EfficiencyDavid Carlson Columbia University Bill Hoffman H.W. Hoffman and Associates, LLC Geoff Nara Civil & Environmental Consultants Stephanie Tanner U.S. Environmental Protection Agency Daniel Yeh University of South Florida David Bracciano Tampa Bay Water Robert Rubin NCSU-BAE and McKim & Creed Winston Huff SSR Engineers Robert Benazzi Jaros Baum & Bolles Gunnar Baldwin TOTO USA, INC Heather Kinkade Forgotten Rain, LLCShabbir Rawalpindiwala Kohler Company Bill Wall Clivus New England, Inc.

energy & atmosphere taG Greg Kats, Chair GoodEnergiesMarcus Sheffer, Vice-Chair 7groupDrury Crawley US Department of EnergyJay Enck Commissioning & Green Building Solutions, Inc. Ellen Franconi IPMVP and AECMark Frankel New Buildings InstituteNathan Gauthier Harvard Green Campus InitiativeRusty Hodapp Dallas/Fort Worth, Energy & Transportation ManagementJohn Hogan City of Seattle Department of Planning & DevelopmentBion Howard Building Environmental Science and TechnologyDan Katzenberger Engineering, Energy, and the EnvironmentBob Maddox Sterling PlanetBrenda Morawa BVM Engineering, Inc.Erik Ring LPA, Inc.Michael Rosenberg Oregon Department of EnergyMick Schwedler TraneGord Shymko IPMVP and G.F. Shymko & AssociatesGail Stranske CTG EnergeticsMichael Zimmer Thompson Hine LLP

Materials & resources taG Mark Webster, Chair Simpson Gumpertz & HegerSteven Baer, Vice Chair Five Winds InternationalPaul Bertram NAIMAChris Dixon NBBJAnn Edminster Design AVEnuesLee Gros Lee Gros Architect and Artisan, IncTheresa Hogerheide-Reusch Reusch Design Services Nadav Malin BuildingGreen, LLC.


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Nancy Malone Siegel & Strain ArchitectsKirsten Ritchie GenslerWayne Trusty Athena Sustainable Materials InstituteDenise Van Valkenburg MASCO Retail Cabinet GroupGabe Wing Herman Miller, Inc.

indoor environmental Quality taGBob Thompson, Chair EPA Indoor Environment Management BranchSteve Taylor, Vice-Chair Taylor EngineeringNancy Clanton Clanton and AssociatesAlexis Kurtz Ove Arup &PartnersGeorge Loisos Loisos+ UbelohdePrasad Vaidya The Weidt GroupDaniel Bruck BRC Acoustics & Tech.David Lubman David Lubman & AssociatesCharles Salter Salter AssociatesOzgem Ornektekin DMJM HarrisJude Anders Shoreline Concepts, LLCBrian Cloward Mithun Architects+Designers+PlannersLarry Dykhuis Herman Miller, Inc Francis (Bud) Offerman Indoor Environmental EngineeringChristopher Schaffner The Green EngineerDennis Stanke Trane Company

The LEED 2009 for New Construction Rating System builds on the work of those who helped create previous versions:

leeD for new Construction Version 2.2 Core Committee James H. Goldman, Chair Turner ConstructionTom Scarola, Vice-Chair Tishman Speyer PropertiesLee Burgett Trane CompanyCraig Kneeland NYSERDAJoe Higgins Fidelity Real Estate CompanyHarry Gordon Burt Hill Kosar Rittelmann AssociatesMuscoe Martin Wallace Roberts & Todd, LLCChris Dixon MithunBill Odell HOK ArchitectsChris Schaffner The Green EngineerWayne Trusty Athena Sustainable Materials InstituteJerry Yudelson Greenway Consulting Group, LLCCharlotte Matthews Bovis Lend LeaseJohn McFarland WorkingBuildings LLCPrasad Vaidya The Weidt GroupAalok Deshmuk The Rocky Mountain Institute


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leeD 2009 for new ConStrUCtion anD Major renoVationS projeCt CheCkliSt

Sustainable Sites 26 possible pointsPrerequisite 1 Construction activity Pollution Prevention required

Credit 1 site selection 1

Credit 2 Development Density and Community Connectivity 5

Credit 3 Brownfield redevelopment 1

Credit 4.1 alternative transportation—Public transportation access 6

Credit 4.2 alternative transportation—Bicycle storage and Changing rooms 1

Credit 4.3 alternative transportation—Low-Emitting and fuel-Efficient vehicles 3

Credit 4.4 alternative transportation—Parking Capacity 2

Credit 5.1 site Development—Protect or restore Habitat 1

Credit 5.2 site Development—Maximize open space 1

Credit 6.1 stormwater Design—Quantity Control 1

Credit 6.2 stormwater Design—Quality Control 1

Credit 7.1 Heat island Effect—Nonroof 1

Credit 7.2 Heat island Effect—roof 1

Credit 8 Light Pollution reduction 1

water efficiency 10 possible pointsPrerequisite 1 water use reduction required

Credit 1 water Efficient Landscaping 2-4

Credit 2 innovative wastewater technologies 2

Credit 3 water use reduction 2-4

energy and atmosphere 35 possible pointsPrerequisite 1 fundamental Commissioning of Building Energy systems required

Prerequisite 2 Minimum Energy Performance required

Prerequisite 3 fundamental refrigerant Management required

Credit 1 optimize Energy Performance 1–19

Credit 2 on-site renewable Energy 1–7

Credit 3 Enhanced Commissioning 2

Credit 4 Enhanced refrigerant Management 2

Credit 5 Measurement and verification 3

Credit 6 Green Power 2

Materials and resources 14 possible pointsPrerequisite 1 storage and Collection of recyclables required

Credit 1.1 Building reuse—Maintain Existing walls, floors and roof 1-3

Credit 1.2 Building reuse—Maintain Existing interior Nonstructural Elements 1

Credit 2 Construction waste Management 1-2

Credit 3 Materials reuse 1-2

Credit 4 recycled Content 1-2


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Credit 5 regional Materials 1-2

Credit 6 rapidly renewable Materials 1

Credit 7 Certified wood 1

indoor environmental Quality 15 possible pointsPrerequisite 1 Minimum indoor air Quality Performance required

Prerequisite 2 Environmental tobacco smoke (Ets) Control required

Credit 1 outdoor air Delivery Monitoring 1

Credit 2 increased ventilation 1

Credit 3.1 Construction indoor air Quality Management Plan—During Construction 1

Credit 3.2 Construction indoor air Quality Management Plan—Before occupancy 1

Credit 4.1 Low-Emitting Materials—adhesives and sealants 1

Credit 4.2 Low-Emitting Materials—Paints and Coatings 1

Credit 4.3 Low-Emitting Materials—flooring systems 1

Credit 4.4 Low-Emitting Materials—Composite wood and agrifiber Products 1

Credit 5 indoor Chemical and Pollutant source Control 1

Credit 6.1 Controllability of systems—Lighting 1

Credit 6.2 Controllability of systems—thermal Comfort 1

Credit 7.1 thermal Comfort—Design 1

Credit 7.2 thermal Comfort—verification 1

Credit 8.1 Daylight and views—Daylight 1

Credit 8.2 Daylight and views—views 1

innovation in Design 6 possible pointsCredit 1 innovation in Design 1-5

Credit 2 LEED accredited Professional 1

regional priority 4 possible pointsCredit 1 regional Priority 1-4________________________________________________________________________

leeD 2009 for new Construction and Major renovations100 base points; 6 possible innovation in Design and 4 regional Priority points

Certified 40–49 points

silver 50–59 points

Gold 60–79 points

Platinum 80 points and above


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preface i

introduction xii. LEED® Green Building rating system™ xi

ii. overview and Process xiii

iii. Minimum Program requirements xiv

iv. Exemplary Performance strategies xv

Minimum program requirements xvi

Sustainable Sites (SS) 1Prerequisite 1 Construction activity Pollution Prevention 1

Credit 1 site selection 2

Credit 2 Development Density and Community Connectivity 3

Credit 3 Brownfield redevelopment 5

Credit 4.1 alternative transportation—Public transportation access 6

Credit 4.2 alternative transportation—Bicycle storage and Changing rooms 7

Credit 4.3 alternative transportation—Low-Emitting and fuel-Efficient vehicles 8

Credit 4.4 alternative transportation—Parking Capacity 10

Credit 5.1 site Development—Protect or restore Habitat 12

Credit 5.2 site Development—Maximize open space 13

Credit 6.1 stormwater Design—Quantity Control 14

Credit 6.2 stormwater Design—Quality Control 15

Credit 7.1 Heat island Effect—Nonroof 16

Credit 7.2 Heat island Effect—roof 17

Credit 8 Light Pollution reduction 18

water efficiency (we) 21Prerequisite 1 water use reduction 21

Credit 1 water Efficient Landscaping 23

Credit 2 innovative wastewater technologies 25

Credit 3 water use reduction 26

energy and atmosphere (ea) 29Prerequisite 1 fundamental Commissioning of Building Energy systems 29

Prerequisite 2 Minimum Energy Performance 31

Prerequisite 3 fundamental refrigerant Management 34

Credit 1 optimize Energy Performance 35

Credit 2 on-site renewable Energy 38

Credit 3 Enhanced Commissioning 39

Credit 4 Enhanced refrigerant Management 41


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Credit 5 Measurement and verification 43

Credit 6 Green Power 45

Materials and resources (Mr) 47Prerequisite 1 storage and Collection of recyclables 47

Credit 1.1 Building reuse—Maintain Existing walls, floors, and roof 48

Credit 1.2 Building reuse—Maintain interior Nonstructural Elements 49

Credit 2 Construction waste Management 50

Credit 3 Materials reuse 51

Credit 4 recycled Content 52

Credit 5 regional Materials 53

Credit 6 rapidly renewable Materials 54

Credit 7 Certified wood 55

indoor environmental Quality (ieQ) 57Prerequisite 1 Minimum indoor air Quality Performance 57

Prerequisite 2 Environmental tobacco smoke (Ets) Control 58

Credit 1 outdoor air Delivery Monitoring 60

Credit 2 increased ventilation 61

Credit 3.1 Construction indoor air Quality Management Plan—During Construction 63

Credit 3.2 Construction indoor air Quality Management Plan—Before occupancy 64

Credit 4.1 Low-Emitting Materials—adhesives and sealants 66

Credit 4.2 Low-Emitting Materials—Paints and Coatings 68

Credit 4.3 Low-Emitting Materials—flooring systems 69

Credit 4.4 Low-Emitting Materials—Composite wood and agrifiber Products 71

Credit 5 indoor Chemical and Pollutant source Control 72

Credit 6.1 Controllability of systems—Lighting 73

Credit 6.2 Controllability of systems—thermal Comfort 74

Credit 7.1 thermal Comfort—Design 75

Credit 7.2 thermal Comfort—verification 76

Credit 8.1 Daylight and views—Daylight 77

Credit 8.2 Daylight and views—views 81

innovation in Design (iD) 83Credit 1 innovation in Design 83

Credit 2 LEED® accredited Professional 84

regional priority (rp) 85Credit 1 regional Priority 85


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i. leeD® Green BUilDinG ratinG SySteM

Background on leeD®

Following the formation of the U.S. Green Building Council (USGBC) in 1993, the organization’s members quickly realized that the sustainable building industry needed a system to define and measure “green buildings.” USGBC began to research existing green building metrics and rating systems. Less than a year after formation, the members acted on the initial findings by establishing a committee to focus solely on this topic. The composition of the committee was diverse; it included architects, real estate agents, a building owner, a lawyer, an environmentalist, and industry representatives. This cross section of people and professions added a richness and depth both to the process and to the ultimate product.

The first LEED Pilot Project Program, also referred to as LEED Version 1.0, was launched at the USGBC Membership Summit in August 1998. After extensive modifications, LEED Green Building Rating System Version 2.0 was released in March 2000, with LEED Version 2.1 following in 2002 and LEED Version 2.2 following in 2005.

As LEED has evolved and matured, the program has undertaken new initiatives. In addition to a rating system specifically devoted to building operational and maintenance issues (LEED for Existing Buildings: Operations & Maintenance), LEED addresses the different project development and delivery processes that exist in the U.S. building design and construction market, through rating systems for specific building typologies, sectors, and project scopes: LEED for Core & Shell, LEED for New Construction, LEED for Schools, LEED for Neighborhood Development, LEED for Retail, LEED for Healthcare, LEED for Homes, and LEED for Commercial Interiors.

Project teams interact with the Green Building Certification Institute (GBCI) for project registration

and certification. GBCI was established in 2008 as a separately incorporated entity with the support of the U.S. Green Building Council. GBCI administers credentialing and certification programs related to green building practice. These programs support the application of proven strategies for increasing and measuring the performance of buildings and communities as defined by industry systems such as LEED.

The green building field is growing and changing daily. New technologies and products are being introduced into the marketplace, and innovative designs and practices are proving their effectiveness. The LEED rating systems and reference guides will evolve as well. Project teams must comply with the version of the rating system that is current at the time of their registration.

USGBC will highlight new developments on its website on a continual basis at www.usgbc.org.

features of leeD®

The LEED Green Building Rating Systems are voluntary, consensus-based, and market-driven. Based on existing and proven technology, they evaluate environmental performance from a whole building perspective over a building’s life cycle, providing a definitive standard for what constitutes a green building in design, construction, and operation.

The LEED rating systems are designed for rating new and existing commercial, institutional, and residential buildings. They are based on accepted energy and environmental principles and strike a balance between known, established practices and emerging concepts. Each rating system is organized into 5 environmental categories:

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Sustainable Sites, Water Efficiency, Energy and Atmosphere, Materials and Resources, and Indoor Environmental Quality. An additional category, Innovation in Design, addresses sustainable building expertise as well as design measures not covered under the 5 environmental categories. Regional bonus points are another feature of LEED and acknowledge the importance of local conditions in determining best environmental design and construction practices.

the leeD Credit weightingsIn LEED 2009, the allocation of points between credits is based on the potential environmental impacts and human benefits of each credit with respect to a set of impact categories. The impacts are defined as the environmental or human effect of the design, construction, operation, and maintenance of the building, such as greenhouse gas emissions, fossil fuel use, toxins and carcinogens, air and water pollutants, indoor environmental conditions. A combination of approaches, including energy modeling, life-cycle assessment, and transportation analysis, is used to quantify each type of impact. The resulting allocation of points among credits is called credit weighting.

LEED 2009 uses the U.S. Environmental Protection Agency’s TRACI1 environmental impact categories as the basis for weighting each credit. TRACI was developed to assist with impact evaluation for life-cycle assessment, industrial ecology, process design, and pollution prevention.

LEED 2009 also takes into consideration the weightings developed by the National Institute of Standards and Technology (NIST); these compare impact categories with one another and assign a relative weight to each. Together, the 2 approaches provide a solid foundation for determining the point value of each credit in LEED 2009.

The LEED 2009 credit weightings process is based on the following parameters, which maintain consistency and usability across rating systems:

n All LEED credits are worth a minimum of 1 point.

n All LEED credits are positive, whole numbers; there are no fractions or negative values.

n All LEED credits receive a single, static weight in each rating system; there are no individualized scorecards based on project location.

n All LEED rating systems have 100 base points; Innovation in Design (or Operations) and Regional Priority credits provide opportunities for up to 10 bonus points.

Given the above criteria, the LEED 2009 credit weightings process involves 3 steps:

1. A reference building is used to estimate the environmental impacts in 13 categories associated with a typical building pursuing LEED certification.

2. The relative importance of building impacts in each category are set to reflect values based on the NIST weightings.2

3. Data that quantify building impacts on environmental and human health are used to assign points to individual credits.

Each credit is allocated points based on the relative importance of the building-related impacts that it addresses. The result is a weighted average that combines building impacts and the relative value of the impact categories. Credits that most directly address the most important impacts are given the greatest weight, subject to the system design parameters described above. Credit weights also reflect a decision by LEED to recognize the market implications of point allocation. The result is a significant change in allocation of points compared with previous LEED rating systems. Overall, the changes increase the relative emphasis on the reduction of energy consumption and greenhouse gas emissions associated with building systems, transportation, the embodied energy of water, the embodied energy of materials, and where applicable, solid waste.


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The details of the weightings process vary slightly among individual rating systems. For example, LEED for Existing Buildings: Operations & Maintenance includes credits related to solid waste management but LEED for New Construction does not. This results in a difference in the portion of the environmental footprint addressed by each rating system and the relative allocation of points. The weightings process for each rating system is fully documented in a weightings workbook.

The credit weightings process will be reevaluated over time to incorporate changes in values ascribed to different building impacts and building types, based on both market reality and evolving scientific knowledge related to buildings. A complete explanation of the LEED credit weightings system is available on the USGBC website, at www.usgbc.org.

regional priority CreditsTo provide incentive to address geographically specific environmental issues, USGBC regional councils and chapters have identified 6 credits per rating system that are of particular importance to specific areas. Each regional priority credit is worth an additional 1 point, and a total of 4 regional priority points may be earned. Upon project registration, LEED Online automatically determines a project’s regional priority credits based on its zip code. If the project achieves more than 4 regional priority credits, the team can choose the credits for which these points will apply. The USGBC website also contains a searchable database of regional priority credits.

ii. oVerView anD proCeSSThe LEED 2009 Green Building Rating System for New Construction and Major Renovations is a set of performance standards for certifying the design and construction of commercial or institutional buildings and high-rise residential buildings of all sizes, both public and private. The intent is to promote healthful, durable, affordable, and environmentally sound practices in building design and construction.

Prerequisites and credits in the LEED 2009 for New Construction and Major Renovations addresses 7 topics:

n Sustainable Sites (SS)

n Water Efficiency (WE)

n Energy and Atmosphere (EA)

n Materials and Resources (MR)

n Indoor Environmental Quality (IEQ)

n Innovation in Design (ID)

n Regional Priority (RP)

LEED 2009 for New Construction and Major Renovations certifications are awarded according to the following scale:

Certified 40–49 points

silver 50–59 points

Gold 60–79 points

Platinum 80 points and above

GBCI will recognize buildings that achieve 1 of these rating levels with a formal letter of certification.

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when to Use leeD 2009 for new ConstructionLEED for New Construction was designed primarily for new commercial office buildings, but it has been applied to many other building types by LEED practitioners. All commercial buildings, as defined by standard building codes, are eligible for certification as LEED for New Construction buildings. Examples of commercial occupancies include offices, institutional buildings (libraries, museums, churches, etc.), hotels, and residential buildings of 4 or more habitable stories.

LEED for New Construction addresses design and construction activities for both new buildings and major renovations of existing buildings. If the project scope does not involve significant design and construction activities and focuses more on operations and maintenance activities, LEED for Existing Buildings: Operations & Maintenance is more appropriate because it addresses operational and maintenance issues of working buildings.

Please see the Rating System Selection Policy, located in the LEED resources section of www.usgbc.org, for more information about choosing a rating system.

registrationProject teams interested in earning LEED certification for their buildings must first register the project with GBCI. Projects can be registered on the GBCI website (www.gbci.org). The website also has information on registration costs for USGBC national members as well as nonmembers. Registration is an important step that establishes contact with GBCI and provides access to software tools, errata, critical communications, and other essential information.

CertificationTo earn LEED certification, the applicant project must satisfy all the prerequisites and qualify for a minimum number of points to attain the established project ratings as listed below. Having satisfied the basic prerequisites of the program, applicant projects are then rated according to their degree of compliance within the rating system.

LEED 2009 for New Construction provides the option of splitting a certification application into two phases: design and construction. Documentation for design phase credits, identified in LEED-Online, can be submitted for review at the end of the design phase; the submittals for these credits can be fully evaluated based on documentation available during this phase of the project. For example, if a project site meets the requirements of LEED for New Construction SS Credit 3, Brownfield Redevelopment, the likelihood of credit achievement can be assessed before construction is complete. The LEED credit itself, however, is not awarded at the design review stage.

For more information on the LEED certification process including LEED-Online, Credit Interpretation Requests and Rulings, Appeals, and Fees please see the LEED Reference Guide for Green Building Design and Construction, 2009 Edition and visit www.usgbc.org or www.gbci.org.

iii. MiniMUM proGraM reQUireMentS The LEED 2009 Minimum Program Requirements (MPRs) define the minimum characteristics that a project must possess in order to be eligible for certification under LEED 2009. These requirements define the categories of buildings that the LEED rating systems were designed to evaluate, and taken together serve three goals: to give clear guidance to customers, to protect the integrity of the LEED program, and to reduce challenges that occur during the LEED certification process. It is expected that MPRs will evolve over time along with LEED rating system improvements. The requirements will apply only to those projects registering under LEED 2009.

To view the list of MPRs, please read the Minimum Program Requirements section of this document.

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iV. exeMplary perforManCe StrateGieSExemplary performance strategies result in performance that greatly exceeds the performance level or expands the scope required by an existing LEED 2009 for New Construction credit. To earn exemplary performance credits, teams must meet the performance level defined by the next step in the threshold progression. For credits with more than 1 compliance path, an Innovation in Design point can be earned by satisfying more than 1 compliance path if their benefits are additive.

The credits for which exemplary performance points are available through expanded performance or scope are noted in the LEED Reference Guide for Green Design & Construction, 2009 Edition and in LEED Online.

Endnotes1 Tools for the Reduction and Assessment of Chemical and Other Environmental Impacts (TRACI). U.S.

Environmental Protection Agency, Office of Research and Development. http://www.epa.gov/nrmrl/std/sab/traci/.

2 Relative impact category weights based on an exercise undertaken by NIST (National Institute of Standards and Technology) for the BEES program. http://www.bfrl.nist.gov/oae/software/bees/.

http://www.epa.gov/nrmrl/std/sab/traci/

http://www.epa.gov/nrmrl/std/sab/traci/

http://www.bfrl.nist.gov/oae/software/bees/


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These Minimum Program Requirements were updated in October 2009 to include additional clarifying language. No new requirements have been added.

At this time U.S. Green Building Council, Inc. has authorized the Green Building Certification Institute (GBCI) to confer LEED Certification. A project must demonstrate compliance with all rating system requirements including each of these Minimum Program Requirements (MPRs) in order to achieve LEED Certification. Definitions, exceptions, and more extensive guidance relating to these MPRs are available in a separate document titled: LEED 2009 MPR Supplemental Guidance. Terms that are italicized and underlined here are defined in the Supplemental Guidance document (they are marked as such only the first time that they appear).

This document identifies the MPRs, or minimum characteristics that a project must possess in order to be eligible for LEED Certification. These requirements define the types of buildings that the LEED Green Building Rating Systems were designed to evaluate, and taken together serve three goals: to give clear guidance to customers, to protect the integrity of the LEED program, and to reduce complications that occur during the LEED Certification process. The requirements in this document will apply to all those, and only those projects seeking to demonstrate conformance with the rating systems listed above.

GBCI has agreed to consider requests for exceptions to MPRs that are not already defined in the LEED 2009 MPR Supplemental Guidance document on a case-by-case basis for special circumstances.

leeD 2009 Minimum requirements for new Construction & Major renovations

1. Must Comply with Environmental LawsThe LEED project building or space, all other real property within the LEED project boundary, and all project work must comply with applicable federal, state, and local building-related environmental laws and regulations in place where the project is located. This condition must be satisfied from the date of LEED project registration or the commencement of schematic design, whichever comes first, up and until the date that the building receives a certificate of occupancy or similar official indication that it is fit and ready for use.

A lapse in a project’s compliance with a building-related environmental law or regulation that results from an unforeseen and unavoidable circumstance shall not necessarily result in non-compliance with this MPR. Such lapses shall be excused so long as they are remediated as soon as feasibly possible.

2. Must be a Complete, Permanent Building or spaceAll LEED projects must be designed for, constructed on, and operated on a permanent location on already existing land. LEED projects shall not consist of mobile structures, equipment, or vehicles. No building or space that is designed to move at any point in its lifetime may pursue LEED Certification.

LEED projects must include the new, ground-up design and construction, or major renovation, of at least one commercial, institutional, or high-rise residential building in its entirety.

3. Must use a reasonable site Boundary1. The LEED project boundary must include all contiguous land that is associated with and supports normal

building operations for the LEED project building, including all land that was or will be disturbed for the purpose of undertaking the LEED project.

2. The LEED project boundary may not include land that is owned by a party other than that which owns the LEED project unless that land is associated with and supports normal building operations for the LEED project building.


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3. LEED projects located on a campus must have project boundaries such that if all the buildings on campus become LEED certified, then 100% of the gross land area on the campus would be included within a LEED boundary. If this requirement is in conflict with MPR #7, Must Comply with Minimum Building Area to Site Area Ratio, then MPR #7 will take precedence.

4. Any given parcel of real property may only be attributed to a single LEED project building.

5. Gerrymandering of a LEED project boundary is prohibited: the boundary may not unreasonably exclude sections of land to create boundaries in unreasonable shapes for the sole purpose of complying with prerequisites or credits.

4. Must Comply with Minimum floor area requirementsThe LEED project must include a minimum of 1,000 square feet (93 square meters) of gross floor area.

5. Must Comply with Minimum occupancy rates The LEED project must serve 1 or more Full Time Equivalent (FTE) occupant(s), calculated as an annual average in order to use LEED in its entirety. If the project serves less than 1 annualized FTE, optional credits from the Indoor Environmental Quality category may not be earned (the prerequisites must still be earned).

6. Must Commit to sharing whole-Building Energy and water usage DataAll certified projects must commit to sharing with U.S, Green Building Council, Inc. all available actual whole-project energy and water usage data. The purpose of data collection is for research purposes to aid in improving the LEED program. USGBC may publish such data; however, any data that is made publicly available shall be presented in an aggregate form with no identifying project-specific characteristics. For all rating systems, Project Owners must comply with this MPR commencing on the project completion date and maintain their commitment to share data for a period of at least 5 years.

Sharing data includes supplying information on a regular basis in a free, accessible, and secure online tool or, in the alternative, either allowing USGBC to access the whole-project metering facility where such meters are in place, or taking any action necessary to authorize USGBC or its designee to collect project information directly from service or utility providers. LEED project buildings or spaces that do not have meters in place that measure energy and/or water usage for the entire LEED certified gross floor area will not be required to supply energy and/or water usage data unless and until such meters are installed.

If a LEED project is altered in such a way that the data for the original LEED project becomes impractical to collect, the building owner will no longer be required to provide the data or provide access to the data. Building owners must commit to using reasonable efforts to ensure that this commitment carries forward in the event that the building or space changes ownership or lessee. If all or part of a LEED project is sold, assigned or otherwise transferred in such a way that the data for the original LEED project becomes impractical to collect, the building owner will no longer be required to provide the data or provide access to the data.

7. Must Comply with a Minimum Building area to site area ratio The gross floor area of the LEED project building must be no less than 2% of the gross land area within the LEED project boundary.


xviii


1

SS prerequisite 1: Construction activity pollution prevention

required

intentTo reduce pollution from construction activities by controlling soil erosion, waterway sedimentation and airborne dust generation.

requirementsCreate and implement an erosion and sedimentation control plan for all construction activities associated with the project. The plan must conform to the erosion and sedimentation requirements of the 2003 EPA Construction General Permit OR local standards and codes, whichever is more stringent. The plan must describe the measures implemented to accomplish the following objectives:

n To prevent loss of soil during construction by stormwater runoff and/or wind erosion, including protecting topsoil by stockpiling for reuse.

n To prevent sedimentation of storm sewers or receiving streams.

n To prevent pollution of the air with dust and particulate matter.

The EPA’s construction general permit outlines the provisions necessary to comply with Phase I and Phase II of the National Pollutant Discharge Elimination System (NPDES) program. While the permit only applies to construction sites greater than 1 acre, the requirements are applied to all projects for the purposes of this prerequisite. Information on the EPA construction general permit is available at http://cfpub.epa.gov/npdes/stormwater/cgp.cfm.

potential technologies & StrategiesCreate an erosion and sedimentation control plan during the design phase of the project. Consider employing strategies such as temporary and permanent seeding, mulching, earthen dikes, silt fencing, sediment traps and sediment basins.

http://cfpub.epa.gov/npdes/stormwater/cgp.cfm


2

SS Credit 1: Site Selection

1 point

intentTo avoid the development of inappropriate sites and reduce the environmental impact from the location of a building on a site.

requirementsDo not develop buildings, hardscape, roads or parking areas on portions of sites that meet any of the following criteria:

n Prime farmland as defined by the U.S. Department of Agriculture in the United States Code of Federal Regulations, Title 7, Volume 6, Parts 400 to 699, Section 657.5 (citation 7CFR657.5)

n Previously undeveloped land whose elevation is lower than 5 feet above the elevation of the 100-year flood as defined by the Federal Emergency Management Agency (FEMA)

n Land specifically identified as habitat for any species on federal or state threatened or endangered lists

n Land within 100 feet of any wetlands as defined by the U.S. Code of Federal Regulations 40 CFR, Parts 230-233 and Part 22, and isolated wetlands or areas of special concern identified by state or local rule, OR within setback distances from wetlands prescribed in state or local regulations, as defined by local or state rule or law, whichever is more stringent

n Previously undeveloped land that is within 50 feet of a water body, defined as seas, lakes, rivers, streams and tributaries that support or could support fish, recreation or industrial use, consistent with the terminology of the Clean Water Act

n Land that prior to acquisition for the project was public parkland, unless land of equal or greater value as parkland is accepted in trade by the public landowner (park authority projects are exempt).

potential technologies & StrategiesDuring the site selection process, give preference to sites that do not include sensitive elements or restrictive land types. Select a suitable building location and design the building with a minimal footprint to minimize disruption of the environmentally sensitive areas identified above.


3

SS Credit 2: Development Density and Community Connectivity

5 points

intentTo channel development to urban areas with existing infrastructure, protect greenfields, and preserve habitat and natural resources.

requirements

oPtioN 1. Development DensityConstruct or renovate a building on a previously developed site AND in a community with a minimum density of 60,000 square feet per acre net. The density calculation is based on a typical two-story downtown development and must include the area of the project being built.

or

oPtioN 2. Community ConnectivityConstruct or renovate a building on a site that meets the following criteria:

n Is located on a previously developed site

n Is within 1/2 mile of a residential area or neighborhood with an average density of 10 units per acre net

n Is within 1/2 mile of at least 10 basic services

n Has pedestrian access between the building and the services

For mixed-use projects, no more than 1 service within the project boundary may be counted as 1 of the 10 basic services, provided it is open to the public. No more than 2 of the 10 services required may be anticipated (i.e., at least 8 must be existing and operational). In addition, the anticipated services must demonstrate that they will be operational in the locations indicated within 1 year of occupation of the applicant project.

Examples of basic services include the following:

n Bank

n Place of Worship

n Convenience Grocery

n Day Care Center

n Cleaners

n Fire Station

n Beauty Salon

n Hardware

n Laundry

n Library

n Medical or Dental Office

n Senior Care Facility

n Park

n Pharmacy

n Post Office

n Restaurant

n School

n Supermarket

n Theater

n Community Center

n Fitness Center

n Museum


4

Proximity is determined by drawing a 1/2-mile radius around a main building entrance on a site map and counting the services within that radius.

potential technologies & StrategiesDuring the site selection process, give preference to urban sites with pedestrian access to a variety of services.


5

SS Credit 3: Brownfield redevelopment

1 point

intentTo rehabilitate damaged sites where development is complicated by environmental contamination and to reduce pressure on undeveloped land.

requirements

oPtioN 1Develop on a site documented as contaminated (by means of an ASTM E1903-97 Phase II Environmental Site Assessment or a local voluntary cleanup program).

or

oPtioN 2Develop on a site defined as a brownfield by a local, state, or federal government agency.

potential technologies & StrategiesDuring the site selection process, give preference to brownfield sites. Identify tax incentives and property cost savings. Coordinate site development plans with remediation activity, as appropriate.


6

SS Credit 4.1: alternative transportation—public transportation access

6 points

intentTo reduce pollution and land development impacts from automobile use.

requirements

oPtioN 1. rail station ProximityLocate the project within 1/2-mile walking distance (measured from a main building entrance) of an existing or planned and funded commuter rail, light rail or subway station.

or

oPtioN 2. Bus stop ProximityLocate the project within 1/4-mile walking distance (measured from a main building entrance) of 1 or more stops for 2 or more public, campus, or private bus lines usable by building occupants.

potential technologies & StrategiesPerform a transportation survey of future building occupants to identify transportation needs. Locate the building near mass transit.


7

SS Credit 4.2: alternative transportation—Bicycle Storage and Changing rooms

1 point


requirements

CasE 1. Commercial or institutional ProjectsProvide secure bicycle racks and/or storage within 200 yards of a building entrance for 5% or more of all building users (measured at peak periods)

Provide shower and changing facilities in the building, or within 200 yards of a building entrance, for 0.5% of full-time equivalent (FTE) occupants.

CasE 2. residential ProjectsProvide covered storage facilities for securing bicycles for 15% or more of building occupants.

potential technologies & StrategiesDesign the building with transportation amenities such as bicycle racks and shower/changing facilities.


8

SS Credit 4.3: alternative transportation—low-emitting and fuel-efficient Vehicles

3 points


requirements

oPtioN 1Provide preferred parking1 for low-emitting and fuel-efficient vehicles2 for 5% of the total vehicle parking capacity of the site. Providing a discounted parking rate is an acceptable substitute for preferred parking for low-emitting/fuel-efficient vehicles. To establish a meaningful incentive in all potential markets, the parking rate must be discounted at least 20%. The discounted rate must be available to all customers (i.e., not limited to the number of customers equal to 5% of the vehicle parking capacity), publicly posted at the entrance of the parking area and available for a minimum of 2 years.

or

oPtioN 2Install alternative-fuel fueling stations for 3% of the total vehicle parking capacity of the site. Liquid or gaseous fueling facilities must be separately ventilated or located outdoors.

or

oPtioN 3 Provide low-emitting and fuel-efficient vehicles2 for 3% of full-time equivalent (FTE) occupants.

Provide preferred parking1 for these vehicles.

or

oPtioN 4Provide building occupants access to a low-emitting or fuel-efficient vehicle-sharing program. The following requirements must be met:

n One low-emitting or fuel-efficient vehicle must be provided per 3% of FTE occupants, assuming that 1 shared vehicle can carry 8 persons (i.e., 1 vehicle per 267 FTE occupants). For buildings with fewer than 267 FTE occupants, at least 1 low emitting or fuel-efficient vehicle must be provided.

n A vehicle-sharing contract must be provided that has an agreement of at least 2 years.

1 For the purposes of this credit “preferred parking” refers to the parking spots that are closest to the main entrance of the project (exclusive of spaces designated for handicapped persons) or parking passes provided at a discounted price.

2 For the purposes of this credit, low-emitting and fuel-efficient vehicles are defined as vehicles that are either classified as Zero Emission Vehicles (ZEV) by the California Air Resources Board or have achieved a minimum green score of 40 on the American Council for an Energy Efficient Economy (ACEEE) annual vehicle rating guide.


9

n The estimated number of customers served per vehicle must be supported by documentation.

n A narrative explaining the vehicle-sharing program and its administration must be submitted.

n Parking for low-emitting and fuel-efficient vehicles must be located in the nearest available spaces in the nearest available parking area. Provide a site plan or area map clearly highlighting the walking path from the parking area to the project site and noting the distance.

potential technologies & StrategiesProvide transportation amenities such as alternative-fuel refueling stations. Consider sharing the costs and benefits of refueling stations with neighbors.


10

SS Credit 4.4: alternative transportation—parking Capacity

2 points


requirements

CasE 1. Non-residential Projects

oPtioN 1 Size parking capacity to meet but not exceed minimum local zoning requirements.

Provide preferred parking for carpools or vanpools for 5% of the total parking spaces.

or

oPtioN 2 For projects that provide parking for less than 5% of full-time equivalent (FTE) building occupants:

Provide preferred parking1 for carpools or vanpools, marked as such, for 5% of total parking spaces. Providing a discounted parking rate is an acceptable substitute for preferred parking for carpool or vanpool vehicles. To establish a meaningful incentive in all potential markets, the parking rate must be discounted at least 20%. The discounted rate must be available to all customers (i.e., not limited to the number of customers equal to 5% of the vehicle parking capacity), publicly posted at the entrance of the parking area, and available for a minimum of 2 years.

or

oPtioN 3Provide no new parking.

or

oPtioN 4For projects that have no minimum local zoning requirements, provide 25% fewer parking spaces than the applicable standard listed in the 2003 Institute of Transportation Engineers (ITE) “Parking Generation” study at http://www.ite.org.

CasE 2. residential Projects

oPtioN 1Size parking capacity to meet but not exceed minimum local zoning requirements

Provide infrastructure and support programs to facilitate shared vehicle use such as carpool drop-off areas, designated parking for vanpools, car-share services, ride boards and shuttle services to mass transit.

1 For the purposes of this credit “preferred parking” refers to the parking spots that are closest to the main entrance of the project (exclusive of spaces designated for handicapped persons) or parking passes provided at a discounted price.

http://www.ite.org


11

or


CasE 3. Mixed use (residential with Commercial/retail) Projects

oPtioN 1Mixed-use buildings with less than 10% commercial area must be considered residential and adhere to the residential requirements in Case 2. For mixed-use buildings with more than 10% commercial area, the commercial space must adhere to non-residential requirements in Case 1 and the residential component must adhere to residential requirements in Case 2.

or


potential technologies & StrategiesMinimize parking lot/garage size. Consider sharing parking facilities with adjacent buildings. Consider alternatives that will limit the use of single occupancy vehicles.


12

SS Credit 5.1: Site Development—protect or restore habitat

1 point

intentTo conserve existing natural areas and restore damaged areas to provide habitat and promote biodiversity.

requirements

CasE 1. Greenfield sites1

Limit all site disturbance to the following parameters:

n 40 feet beyond the building perimeter;

n 10 feet beyond surface walkways, patios, surface parking and utilities less than 12 inches in diameter;

n 15 feet beyond primary roadway curbs and main utility branch trenches;

n 25 feet beyond constructed areas with permeable surfaces (such as pervious paving areas, stormwater detention facilities and playing fields) that require additional staging areas to limit compaction in the constructed area.

CasE 2. Previously Developed2 areas or Graded sitesRestore or protect a minimum of 50% of the site (excluding the building footprint) or 20% of the total site area (including building footprint), whichever is greater, with native or adapted vegetation3. Projects earning SS Credit 2: Development Density and Community Connectivity may include vegetated roof surface in this calculation if the plants are native or adapted, provide habitat, and promote biodiversity.

potential technologies & StrategiesSurvey greenfield sites to identify site elements and adopt a master plan for developing the project site. Carefully site the building to minimize disruption to existing ecosystems and design the building to minimize its footprint. Strategies include stacking the building program, tuck-under parking and sharing parking facilities with neighbors. Establish clearly-marked construction boundaries to minimize disturbance of the existing site and restore previously degraded areas to their natural state. For previously developed sites, use local and regional governmental agencies, consultants, educational facilities and native plant societies as resources for the selection of appropriate native or adapted plants. Prohibit plants listed as invasive or noxious weed species. Once established, native/adapted plants require minimal or no irrigation; do not require active maintenance such as mowing or chemical inputs such as fertilizers, pesticides or herbicides; and provide habitat value and promote biodiversity through avoidance of monoculture plantings.

1 Greenfield sites are those that are not previously developed or graded and remain in a natural state.2 Previously developed areas are those that previously contained buildings, roadways, parking lots or were graded or altered by direct human

activities.3 Native or adapted plants are plants indigenous to a locality or cultivars of native plants that are adapted to the local climate and are not

considered invasive species or noxious weeds.


13

SS Credit 5.2: Site Development—Maximize open Space

1 point

intentTo promote biodiversity by providing a high ratio of open space to development footprint.

requirements

CasE 1. sites with Local Zoning open space requirementsReduce the development footprint1 and/or provide vegetated open space within the project boundary such that the amount of open space exceeds local zoning requirements by 25%.

CasE 2. sites with No Local Zoning requirements (e.g. some university campuses, military bases)Provide a vegetated open space area adjacent to the building that is equal in area to the building footprint.

CasE 3. sites with Zoning ordinances but No open space requirementsProvide vegetated open space equal to 20% of the project site area.

aLL CasEsFor projects in urban areas that earn SS Credit 2: Development Density and Community Connectivity, vegetated roof areas can contribute to credit compliance.

For projects in urban areas that earn SS Credit 2: Development Density and Community Connectivity, pedestrian-oriented hardscape areas can contribute to credit compliance. For such projects, a minimum of 25% of the open space counted must be vegetated.

Wetlands or naturally designed ponds may count as open space and the side slope gradients average 1:4 (vertical: horizontal) or less and are vegetated.

potential technologies & StrategiesPerform a site survey to identify site elements and adopt a master plan for developing the project site. Select a suitable building location and design the building footprint to minimize site disruption. Strategies include stacking the building program, tuck-under parking and sharing parking facilities with neighbors to maximize the amount of open space on the site.

1 Development footprint is defined as the total area of the building footprint, hardscape, access roads and parking.


14

SS Credit 6.1: Stormwater Design—Quantity Control

1 point

intentTo limit disruption of natural hydrology by reducing impervious cover, increasing on-site infiltration, reducing or eliminating pollution from stormwater runoff and eliminating contaminants.

requirements

CasE 1. sites with Existing imperviousness 50% or Less

oPtioN 1Implement a stormwater management plan that prevents the postdevelopment peak discharge rate and quantity from exceeding the predevelopment peak discharge rate and quantity for the 1- and 2-year 24-hour design storms.

or

oPtioN 2Implement a stormwater management plan that protects receiving stream channels from excessive erosion. The stormwater management plan must include stream channel protection and quantity control strategies.

CasE 2. sites with Existing imperviousness Greater than 50% Implement a stormwater management plan that results in a 25% decrease in the volume of stormwater runoff from the 2-year 24-hour design storm.

potential technologies & StrategiesDesign the project site to maintain natural stormwater flows by promoting infiltration. Specify vegetated roofs, pervious paving and other measures to minimize impervious surfaces. Reuse stormwater for non-potable uses such as landscape irrigation, toilet and urinal flushing, and custodial uses.


15

SS Credit 6.2: Stormwater Design—Quality Control

1 point

intentTo limit disruption and pollution of natural water flows by managing stormwater runoff.

requirementsImplement a stormwater management plan that reduces impervious cover, promotes infiltration and captures and treats the stormwater runoff from 90% of the average annual rainfall1 using acceptable best management practices (BMPs).

BMPs used to treat runoff must be capable of removing 80% of the average annual postdevelopment total suspended solids (TSS) load based on existing monitoring reports. BMPs are considered to meet these criteria if:

n They are designed in accordance with standards and specifications from a state or local program that has adopted these performance standards,

or n There exists infield performance monitoring data demonstrating compliance with the criteria. Data must

conform to accepted protocol (e.g., Technology Acceptance Reciprocity Partnership [TARP], Washington State Department of Ecology) for BMP monitoring.

potential technologies & StrategiesUse alternative surfaces (e.g., vegetated roofs, pervious pavement, grid pavers) and nonstructural techniques (e.g., rain gardens, vegetated swales, disconnection of imperviousness, rainwater recycling) to reduce imperviousness and promote infiltration and thereby reduce pollutant loadings.

Use sustainable design strategies (e.g., low-impact development, environmentally sensitive design) to create integrated natural and mechanical treatment systems such as constructed wetlands, vegetated filters and open channels to treat stormwater runoff.

1 There are 3 distinct climates in the United States that influence the nature and amount of annual rainfall. Humid watersheds are defined as those that receive at least 40 inches of rainfall each year. Semiarid watersheds receive between 20 and 40 inches of rainfall per year, and arid watersheds receive less than 20 inches of rainfall per year. For this credit, 90% of the average annual rainfall is equivalent to treating the runoff from the following (based on climate):

• Humid Watersheds — 1 inch of rainfall • Semiarid Watersheds — 0.75 inches of rainfall • Arid Watersheds — 0.5 inches of rainfall


16

SS Credit 7.1: heat island effect—nonroof

1 point

intentTo reduce heat islands1 to minimize impacts on microclimates and human and wildlife habitats.

requirements

oPtioN 1Use any combination of the following strategies for 50% of the site hardscape (including roads, sidewalks, courtyards and parking lots):

n Provide shade from the existing tree canopy or within 5 years of landscape installation. Landscaping (trees) must be in place at the time of occupancy.

n Provide shade from structures covered by solar panels that produce energy used to offset some nonrenewable resource use.

n Provide shade from architectural devices or structures that have a solar reflectance index2 (SRI) of at least 29.

n Use hardscape materials with an SRI of at least 29.

n Use an open-grid pavement system (at least 50% pervious).

or

oPtioN 2Place a minimum of 50% of parking spaces under cover3. Any roof used to shade or cover parking must have an SRI of at least 29, be a vegetated green roof or be covered by solar panels that produce energy used to offset some nonrenewable resource use.

potential technologies & StrategiesEmploy strategies, materials and landscaping techniques that reduce the heat absorption of exterior materials. Use shade (calculated on June 21, noon solar time) from native or adapted trees and large shrubs, vegetated trellises or other exterior structures supporting vegetation. Consider using new coatings and integral colorants for asphalt to achieve light-colored surfaces instead of blacktop. Position photovoltaic cells to shade impervious surfaces.

Consider replacing constructed surfaces (e.g., roof, roads, sidewalks, etc.) with vegetated surfaces such as vegetated roofs and open grid paving or specify high-albedo materials, such as concrete, to reduce heat absorption.

1 Heat islands are defined as thermal gradient differences between developed and undeveloped areas. 2 The solar reflectance index (SRI) is a measure of the constructed surface’s ability to reflect solar heat, as shown by a small temperature rise. It is

defined so that a standard black surface (reflectance 0.05, emittance 0.90) is 0 and a standard white surface (reflectance 0.80, emittance 0.90) is 100. To calculate the SRI for a given material, obtain the reflectance value and emittance value for the material. SRI is calculated according to ASTM E 1980. Reflectance is measured according to ASTM E 903, ASTM E 1918, or ASTM C 1549. Emittance is measured according to ASTM E 408 or ASTM C 1371.

3 For the purposes of this credit, under cover parking is defined as parking underground, under deck, under roof, or under a building.


17

SS Credit 7.2: heat island effect—roof

1 point

intentTo reduce heat islands1 to minimize impacts on microclimates and human and wildlife habitats.

requirements

oPtioN 1Use roofing materials with a solar reflectance index2 (SRI) equal to or greater than the values in the table below for a minimum of 75% of the roof surface.

Roofing materials having a lower SRI value than those listed below may be used if the weighted rooftop SRI average meets the following criteria:

area roof Meeting Minimum sri————————————————

total roof areax

sri of installed roof——————————

required sri≥ 75%

Roof Type Slope SRI

Low-sloped roof ≤ 2:12 78

steep-sloped roof > 2:12 29

or

oPtioN 2Install a vegetated roof that covers at least 50% of the roof area.

or

oPtioN 3Install high-albedo and vegetated roof surfaces that, in combination, meet the following criteria:

area roof Meeting Minimum sri————————————————

0.75+

area of vegetated roof——————————

0.5≥ total roof area

Roof Type Slope SRI

Low-sloped roof ≤ 2:12 78

steep-sloped roof > 2:12 29

1 Heat islands are defined as thermal gradient differences between developed and undeveloped areas.2 The solar reflectance index (SRI) is a measure of the constructed surface’s ability to reflect solar heat, as shown by a small temperature rise. It is

defined so that a standard black surface (reflectance 0.05, emittance 0.90) is 0 and a standard white surface (reflectance 0.80, emittance 0.90) is 100. To calculate the SRI for a given material, obtain the reflectance value and emittance value for the material. SRI is calculated according to ASTM E 1980. Reflectance is measured according to ASTM E 903, ASTM E 1918 or ASTM C 1549. Emittance is measured according to ASTM E 408 or ASTM C 1371.


18

potential technologies & StrategiesConsider installing high-albedo and vegetated roofs to reduce heat absorption. Default values will be available in the LEED Reference Guide for Green Building Design and Construction, 2009 Edition. Product information is available from the Cool Roof Rating Council Web site at http://www.coolroofs.org/ and the ENERGY STAR® Web site at http://www.energystar.gov/.

http://www.coolroofs.org/

http://www.energystar.gov/

http://www.energystar.gov/


19

SS Credit 8: light pollution reduction

1 point

intentTo minimize light trespass from the building and site, reduce sky-glow to increase night sky access, improve nighttime visibility through glare reduction and reduce development impact from lighting on nocturnal environments.

requirementsProject teams must comply with 1 of the 2 options for interior lighting AND the requirement for exterior lighting.

for interior Lighting

oPtioN 1Reduce the input power (by automatic device) of all nonemergency interior luminaires with a direct line of sight to any openings in the envelope (translucent or transparent) by at least 50% between 11 p.m. and 5 a.m. After-hours override may be provided by a manual or occupant-sensing device provided the override lasts no more than 30 minutes.

or

oPtioN 2All openings in the envelope (translucent or transparent) with a direct line of sight to any nonemergency luminaires must have shielding (controlled/closed by automatic device for a resultant transmittance of less than 10% between 11 p.m. and 5 a.m.).

for Exterior LightingLight areas only as required for safety and comfort. Exterior lighting power densities shall not exceed those specified in ANSI/ASHRAE/IESNA Standard 90.1-2007 with Addenda 1 for the documented lighting zone. Justification shall be provided for the selected lighting zone. Lighting controls for all exterior lighting shall comply with section 9.4.1.3 of ANSI/ASHRAE/IESNA Standard 90.1- 2007, without amendments1.

Classify the project under 1 of the following zones, as defined in IESNA RP-33, and follow all the requirements for that zone:

LZ1: Dark (developed areas within national parks, state parks, forest land and rural areas)Design exterior lighting so that all site and building-mounted luminaires produce a maximum initial illuminance value no greater than 0.01 horizontal and vertical footcandles at the site boundary and beyond. Document that 0% of the total initial designed fixture lumens (sum total of all fixtures on site) are emitted at an angle of 90 degrees or higher from nadir (straight down).

1 The requirement to use ASHRAE Addenda I is unique to this credit and does not obligate Project teams to use ASHRAE approved addenda for other credits.


20

LZ2: Low (primarily residential zones, neighborhood business districts, light industrial areas with limited nighttime use and residential mixed-use areas) Design exterior lighting so that all site and building-mounted luminaires produce a maximum initial illuminance value no greater than 0.10 horizontal and vertical footcandles at the site boundary and no greater than 0.01 horizontal footcandles 10 feet beyond the site boundary. Document that no more than 2% of the total initial designed fixture lumens (sum total of all fixtures on site) are emitted at an angle of 90 degrees or higher from nadir (straight down).

LZ3: Medium (all other areas not included in LZ1, LZ2 or LZ4, such as commercial/ industrial, and high-density residential)Design exterior lighting so that all site and building-mounted luminaires produce a maximum initial illuminance value no greater than 0.20 horizontal and vertical footcandles at the site boundary and no greater than 0.01 horizontal footcandles 15 feet beyond the site. Document that no more than 5% of the total initial designed fixture lumens (sum total of all fixtures on site) are emitted at an angle of 90 degrees or higher from nadir (straight down).

LZ4: High2 (high-activity commercial districts in major metropolitan areas)Design exterior lighting so that all site and building-mounted luminaires produce a maximum initial illuminance value no greater than 0.60 horizontal and vertical footcandles at the site boundary and no greater than 0.01 horizontal footcandles 15 feet beyond the site. Document that no more than 10% of the total initial designed fixture lumens (sum total of all fixtures on site) are emitted at an angle of 90 degrees or higher from nadir (straight down).

LZ2, LZ3 and LZ4 - For site boundaries that abut public rights-of-way, light trespass requirements may be met relative to the curb line instead of the site boundary.

For All ZonesIlluminance generated from a single luminaire placed at the intersection of a private vehicular driveway and public roadway accessing the site is allowed to use the centerline of the public roadway as the site boundary for a length of 2 times the driveway width centered at the centerline of the driveway.

potential technologies & StrategiesAdopt site lighting criteria to maintain safe light levels while avoiding off-site lighting and night sky pollution. Minimize site lighting where possible, and use computer software to model the site lighting. Technologies to reduce light pollution include full cutoff luminaires, low-reflectance surfaces and low-angle spotlights.

2 To be LZ4, the area must be so designated by an organization with local jurisdiction, such as the local zoning authority.


21

we prerequisite 1: water Use reduction

required

intentTo increase water efficiency within buildings to reduce the burden on municipal water supply and wastewater systems.

requirementsEmploy strategies that in aggregate use 20% less water than the water use baseline calculated for the building (not including irrigation).

Calculate the baseline according to the commercial and/or residential baselines outlined below.1 Calculations are based on estimated occupant usage and must include only the following fixtures and fixture fittings (as applicable to the project scope): water closets, urinals, lavatory faucets, showers, kitchen sink faucets and prerinse spray valves.

Commercial Fixtures, Fittings, and Appliances Current Baseline

Commercial toilets1.6 gallons per flush (gpf)*Except blow-out fixtures: 3.5 (gpf)

Commercial urinals 1.0 (gpf)

Commercial lavatory (restroom) faucets

2.2 gallons per minute (gpm) at 60 pounds per square inch (psi), private applications only (hotel or motel guest rooms, hospital patient rooms)0.5 (gpm) at 60 (psi)** all others except private applications0.25 gallons per cycle for metering faucets

Commercial prerinse spray valves (for food service applications)

flow rate ≤ 1.6 (gpm) (no pressure specified; no performance requirement)

Residential Fixtures, Fittings, and Appliances Current Baseline

residential toilets 1.6 (gpf)***

residential lavatory (bathroom) faucets2.2 (gpm) at 60 psi

residential kitchen faucet

residential showerheads 2.5 (gpm) at 80 (psi) per shower stall****

* EPact 1992 standard for toilets applies to both commercial and residential models.** in addition to EPact requirements, the american society of Mechanical Engineers standard for public lavatory faucets is 0.5 gpm at 60 psi (asME a112.18.1-2005).

this maximum has been incorporated into the national uniform Plumbing Code and the international Plumbing Code.*** EPact 1992 standard for toilets applies to both commercial and residential models.**** residential shower compartment (stall) in dwelling units: the total allowable flow rate from all flowing showerheads at any given time, including rain systems, waterfalls,

bodysprays, bodyspas and jets, must be limited to the allowable showerhead flow rate as specified above (2.5 gpm) per shower compartment, where the floor area of the shower compartment is less than 2,500 square inches. for each increment of 2,500 square inches of floor area thereafter or part thereof, an additional showerhead with total allowable flow rate from all flowing devices equal to or less than the allowable flow rate as specified above must be allowed. Exception: showers that emit recirculated nonpotable water originating from within the shower compartment while operating are allowed to exceed the maximum as long as the total potable water flow does not exceed the flow rate as specified above.

1 Tables adapted from information developed and summarized by the U.S. Environmental Protection Agency (EPA) Office of Water based on requirements of the Energy Policy Act (EPAct) of 1992 and subsequent rulings by the Department of Energy, requirements of the EPAct of 2005, and the plumbing code requirements as stated in the 2006 editions of the Uniform Plumbing Code or International Plumbing Code pertaining to fixture performance.


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The following fixtures, fittings and appliances are outside the scope of the water use reduction calculation:

n Commercial Steam Cookers

n Commercial Dishwashers

n Automatic Commercial Ice Makers

n Commercial (family sized) Clothes Washers

n Residential Clothes Washers

n Standard and Compact Residential Dishwashers

potential technologies & StrategiesWaterSense-certified fixtures and fixture fittings should be used where available. Use high-efficiency fixtures (e.g., water closets and urinals) and dry fixtures, such as toilets attached to composting systems, to reduce potable water demand. Consider using alternative on-site sources of water (e.g., rainwater, stormwater, and air conditioner condensate) and graywater for nonpotable applications such as custodial uses and toilet and urinal flushing. The quality of any alternative source of water used must be taken into consideration based on its application or use.


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we Credit 1: water efficient landscaping

2–4 points

intentTo limit or eliminate the use of potable water or other natural surface or subsurface water resources available on or near the project site for landscape irrigation.

requirements

oPtioN 1. reduce by 50% (2 points)Reduce potable water consumption for irrigation by 50% from a calculated midsummer baseline case.

Reductions must be attributed to any combination of the following items:

n Plant species, density and microclimate factor

n Irrigation efficiency

n Use of captured rainwater

n Use of recycled wastewater

n Use of water treated and conveyed by a public agency specifically for nonpotable uses

Groundwater seepage that is pumped away from the immediate vicinity of building slabs and foundations may be used for landscape irrigation to meet the intent of this credit. However, the project team must demonstrate that doing so does not affect site stormwater management systems.

or

oPtioN 2. No Potable water use or irrigation1 (4 points)Meet the requirements for Option 1.

aND

PatH 1Use only captured rainwater, recycled wastewater, recycled graywater or water treated and conveyed by a public agency specifically for nonpotable uses for irrigation.

or

PatH 2Install landscaping that does not require permanent irrigation systems. Temporary irrigation systems used for plant establishment are allowed only if removed within a period not to exceed 18 months of installation.

1 If the percent reduction of potable water is 100% AND the percent reduction of total water is equal to or greater than 50%, both Option 1 and Option 2 are earned.


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potential technologies & StrategiesPerform a soil/climate analysis to determine appropriate plant material and design the landscape with native or adapted plants to reduce or eliminate irrigation requirements. Where irrigation is required, use high-efficiency equipment and/or climate-based controllers.


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we Credit 2: innovative wastewater technologies

2 points

intentTo reduce wastewater generation and potable water demand while increasing the local aquifer recharge.

requirements

oPtioN 1Reduce potable water use for building sewage conveyance by 50% through the use of water-conserving fixtures (e.g., water closets, urinals) or nonpotable water (e.g., captured rainwater, recycled graywater, on-site or municipally treated wastewater).

or

oPtioN 2Treat 50% of wastewater on-site to tertiary standards. Treated water must be infiltrated or used on-site.

potential technologies & StrategiesSpecify high-efficiency fixtures and dry fixtures (e.g., composting toilet systems, nonwater-using urinals) to reduce wastewater volumes. Consider reusing stormwater or graywater for sewage conveyance or on-site mechanical and/or natural wastewater treatment systems. Options for on-site wastewater treatment include packaged biological nutrient removal systems, constructed wetlands and high-efficiency filtration systems.


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we Credit 3: water Use reduction

2–4 points

intentTo further increase water efficiency within buildings to reduce the burden on municipal water supply and wastewater systems.

requirementsEmploy strategies that in aggregate use less water than the water use baseline calculated for the building (not including irrigation). The minimum water savings percentage for each point threshold is as follows:

Percentage Reduction Points

30% 2

35% 3

40% 4

Calculate the baseline according to the commercial and/or residential baselines outlined below.1 Calculations are based on estimated occupant usage and must include only the following fixtures and fixture fittings (as applicable to the project scope): water closets, urinals, lavatory faucets, showers, kitchen sink faucets and pre-rinse spray valves.

Commercial Fixtures, Fittings, and Appliances Current Baseline

Commercial toilets1.6 gallons per flush (gpf)*Except blow-out fixtures: 3.5 (gpf)

Commercial urinals 1.0 (gpf)

Commercial lavatory (restroom) faucets

2.2 gallons per minute (gpm) at 60 pounds per square inch (psi), private applications only (hotel or motel guest rooms, hospital patient rooms)0.5 (gpm) at 60 (psi)** all others except private applications0.25 gallons per cycle for metering faucets

Commercial prerinse spray valves (for food service applications)

flow rate ≤ 1.6 (gpm) (no pressure specified; no performance requirement)

Residential Fixtures, Fittings, and Appliances Current Baseline

residential toilets 1.6 (gpf)***

residential lavatory (bathroom) faucets2.2 (gpm) at 60 psi

residential kitchen faucet

residential showerheads 2.5 (gpm) at 80 (psi) per shower stall****

* EPact 1992 standard for toilets applies to both commercial and residential models.** in addition to EPact requirements, the american society of Mechanical Engineers standard for public lavatory faucets is 0.5 gpm at 60 psi (asME a112.18.1-2005).

this maximum has been incorporated into the national uniform Plumbing Code and the international Plumbing Code.*** EPact 1992 standard for toilets applies to both commercial and residential models.**** residential shower compartment (stall) in dwelling units: the total allowable flow rate from all flowing showerheads at any given time, including rain systems, waterfalls,

bodysprays, bodyspas and jets, must be limited to the allowable showerhead flow rate as specified above (2.5 gpm) per shower compartment, where the floor area of the shower compartment is less than 2,500 square inches. for each increment of 2,500 square inches of floor area thereafter or part thereof, an additional showerhead with total allowable flow rate from all flowing devices equal to or less than the allowable flow rate as specified above must be allowed. Exception: showers that emit recirculated nonpotable water originating from within the shower compartment while operating are allowed to exceed the maximum as long as the total potable water flow does not exceed the flow rate as specified above.

1 Tables adapted from information developed and summarized by the U.S. Environmental Protection Agency (EPA) Office of Water based on requirements of the Energy Policy Act (EPAct) of 1992 and subsequent rulings by the Department of Energy, requirements of the EPAct of 2005, and the plumbing code requirements as stated in the 2006 editions of the Uniform Plumbing Code or International Plumbing Code pertaining to fixture performance.


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The following fixtures, fittings and appliances are outside the scope of the water use reduction calculation:

n Commercial Steam Cookers

n Commercial Dishwashers

n Automatic Commercial Ice Makers

n Commercial (family-sized) Clothes Washers

n Residential Clothes Washers

n Standard and Compact Residential Dishwashers

potential technologies & StrategiesUse WaterSense-certified fixtures and fixture fittings where available. Use high-efficiency fixtures (e.g., water closets and urinals) and dry fixtures, such as toilets attached to composting systems, to reduce the potable water demand. Consider using alternative on-site sources of water (e.g., rainwater, stormwater, and air conditioner condensate, graywater) for nonpotable applications (e.g., toilet and urinal flushing, custodial uses). The quality of any alternative source of water being used must be taken into consideration based on its application or use.


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29

ea prerequisite 1: fundamental Commissioning of Building energy Systems

required

intentTo verify that the project’s energy-related systems are installed, and calibrated to perform according to the owner’s project requirements, basis of design and construction documents.

Benefits of commissioning include reduced energy use, lower operating costs, fewer contractor callbacks, better building documentation, improved occupant productivity and verification that the systems perform in accordance with the owner’s project requirements.

requirementsThe following commissioning process activities must be completed by the project team:

n Designate an individual as the commissioning authority (CxA) to lead, review and oversee the completion of the commissioning process activities.

• The CxA must have documented commissioning authority experience in at least 2 building projects.

• The individual serving as the CxA must be independent of the project design and construction management, though the CxA may be an employee of any firm providing those services. The CxA may be a qualified employee or consultant of the owner.

• The CxA must report results, findings and recommendations directly to the owner.

• For projects smaller than 50,000 gross square feet, the CxA may be a qualified person on the design or construction team who has the required experience.

n The owner must document the owner’s project requirements. The design team must develop the basis of design. The CxA must review these documents for clarity and completeness. The owner and design team must be responsible for updates to their respective documents.

n Develop and incorporate commissioning requirements into the construction documents.

n Develop and implement a commissioning plan.

n Verify the installation and performance of the systems to be commissioned.

n Complete a summary commissioning report.

Commissioned systemsCommissioning process activities must be completed for the following energy-related systems, at a minimum:

n Heating, ventilating, air conditioning and refrigeration (HVAC&R) systems (mechanical and passive) and associated controls

n Lighting and daylighting controls

n Domestic hot water systems

n Renewable energy systems (e.g., wind, solar)


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potential technologies & StrategiesEngage a CxA as early as possible in the design process. Determine the owner’s project requirements, develop and maintain a commissioning plan for use during design and construction and incorporate commissioning requirements in bid documents. Assemble the commissioning team, and prior to occupancy verify the performance of energy consuming systems. Complete the commissioning reports with recommendations prior to accepting the commissioned systems.

Owners are encouraged to seek out qualified individuals to lead the commissioning process. Qualified individuals are identified as those who possess a high level of experience in the following areas:

n Energy systems design, installation and operation

n Commissioning planning and process management

n Hands-on field experience with energy systems performance, interaction, start-up, balancing, testing, troubleshooting, operation and maintenance procedures

n Energy systems automation control knowledge

Owners are encouraged to consider including water-using systems, building envelope systems, and other systems in the scope of the commissioning plan as appropriate. The building envelope is an important component of a facility that impacts energy consumption, occupant comfort and indoor air quality. While this prerequisite does not require building envelope commissioning, an owner can achieve significant financial savings and reduce risk of poor indoor air quality by including it in the commissioning process.

The LEED Reference Guide for Green Building Design and Construction, 2009 Edition provides guidance on the rigor expected for this prerequisite for the following:

n Owner’s project requirements

n Basis of design

n Commissioning plan

n Commissioning specification

n Performance verification documentation

n Commissioning report


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ea prerequisite 2: Minimum energy performance

required

intentTo establish the minimum level of energy efficiency for the proposed building and systems to reduce environmental and economic impacts associated with excessive energy use.

requirements

oPtioN 1. whole Building Energy simulation Demonstrate a 10% improvement in the proposed building performance rating for new buildings, or a 5% improvement in the proposed building performance rating for major renovations to existing buildings, compared with the baseline building performance rating.

Calculate the baseline building performance rating according to the building performance rating method in Appendix G of ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda1) using a computer simulation model for the whole building project.

Appendix G of Standard 90.1-2007 requires that the energy analysis done for the building performance rating method include all energy costs associated with the building project. To achieve points using this credit, the proposed design must meet the following criteria:

n Comply with the mandatory provisions (Sections 5.4, 6.4, 7.4, 8.4, 9.4 and 10.4) in Standard 90.1-2007 (with errata but without addenda1).

n Include all energy costs associated with the building project.

n Compare against a baseline building that complies with Appendix G of Standard 90.1-2007 (with errata but without addenda1). The default process energy cost is 25% of the total energy cost for the baseline building. If the building’s process energy cost is less than 25% of the baseline building energy cost, the LEED submittal must include documentation substantiating that process energy inputs are appropriate.

For the purpose of this analysis, process energy is considered to include, but is not limited to, office and general miscellaneous equipment, computers, elevators and escalators, kitchen cooking and refrigeration, laundry washing and drying, lighting exempt from the lighting power allowance (e.g., lighting integral to medical equipment) and other (e.g., waterfall pumps).

Regulated (non-process) energy includes lighting (for the interior, parking garage, surface parking, façade, or building grounds, etc. except as noted above), heating, ventilation and air conditioning (HVAC) (for space heating, space cooling, fans, pumps, toilet exhaust, parking garage ventilation, kitchen hood exhaust, etc.), and service water heating for domestic or space heating purposes.

Process loads must be identical for both the baseline building performance rating and the proposed building performance rating. However, project teams may follow the exceptional calculation method (ANSI/ASHRAE/IESNA Standard 90.1-2007 G2.5) to document measures that reduce process loads. Documentation of process

1 Project teams wishing to use ASHRAE approved addenda for the purposes of this credit may do so at their discretion. Addenda must be applied consistently across all LEED credits.


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load energy savings must include a list of the assumptions made for both the base and the proposed design, and theoretical or empirical information supporting these assumptions.

Projects in California may use Title 24-2005, Part 6 in place of ANSI/ASHRAE/IESNA Standard 90.1-2007 for Option 1.

or

oPtioN 2. Prescriptive Compliance Path: asHraE advanced Energy Design GuideComply with the prescriptive measures of the ASHRAE Advanced Energy Design Guide appropriate to the project scope, outlined below. Project teams must comply with all applicable criteria as established in the Advanced Energy Design Guide for the climate zone in which the building is located.

PatH 1. asHraE advanced Energy Design Guide for small office Buildings 2004 The building must meet the following requirements:

n Less than 20,000 square feet.

n Office occupancy.

PatH 2. asHraE advanced Energy Design Guide for small retail Buildings 2006The building must meet the following requirements:


n Retail occupancy.

PatH 3. asHraE advanced Energy Design Guide for small warehouses and self storage Buildings 2008

The building must meet the following requirements:


n Warehouse or self-storage occupancy.

or

oPtioN 3. Prescriptive Compliance Path: advanced Buildings™ Core Performance™ Guide Comply with the prescriptive measures identified in the Advanced Buildings™ Core Performance™ Guide developed by the New Buildings Institute. The building must meet the following requirements:


n Comply with Section 1: Design Process Strategies, and Section 2: Core Performance Requirements.

n Office, school, public assembly, and retail projects less than 100,000 square feet must comply with Section 1 and Section 2 of the Core Performance Guide.

n Other project types less than 100,000 square feet implement the basic requirements of the Core Performance Guide.

n Health care, warehouse and laboratory projects are ineligible for this path.


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potential technologies & StrategiesDesign the building envelope and systems to meet baseline requirements. Use a computer simulation model to assess the energy performance and identify the most cost-effective energy efficiency measures. Quantify energy performance compared with a baseline building.

If local code has demonstrated quantitative and textual equivalence following, at a minimum, the U.S. Department of Energy (DOE) standard process for commercial energy code determination, then the results of that analysis may be used to correlate local code performance with ANSI/ASHRAE/IESNA Standard 90.1-2007. Details on the DOE process for commercial energy code determination can be found at http://www.energycodes.gov/implement/determinations_com.stm.

http://www.energycodes.gov/implement/determinations_com.stm



34

ea prerequisite 3: fundamental refrigerant Management

required

intentTo reduce stratospheric ozone depletion.

requirementsZero use of chlorofluorocarbon (CFC)-based refrigerants in new base building heating, ventilating, air conditioning and refrigeration (HVAC&R) systems. When reusing existing base building HVAC equipment, complete a comprehensive CFC phase-out conversion prior to project completion. Phase-out plans extending beyond the project completion date will be considered on their merits.

potential technologies & StrategiesWhen reusing existing HVAC systems, conduct an inventory to identify equipment that uses CFC-based refrigerants and provide a replacement schedule for these refrigerants. For new buildings, specify new HVAC equipment in the base building that uses no CFC-based refrigerants.


35

ea Credit 1: optimize energy performance

1–19 points

intentTo achieve increasing levels of energy performance beyond the prerequisite standard to reduce environmental and economic impacts associated with excessive energy use.

requirementsSelect 1 of the 3 compliance path options described below. Project teams documenting achievement using any of the 3 options are assumed to be in compliance with EA Prerequisite 2: Minimum Energy Performance.

oPtioN 1. whole Building Energy simulation (1–19 points)Demonstrate a percentage improvement in the proposed building performance rating compared with the baseline building performance rating. Calculate the baseline building performance according to Appendix G of ANSI/ASHRAE/IESNA Standard 90.1-2007 (with errata but without addenda1) using a computer simulation model for the whole building project. The minimum energy cost savings percentage for each point threshold is as follows:

New Buildings Existing Building Renovations Points

12% 8% 1

14% 10% 2

16% 12% 3

18% 14% 4

20% 16% 5

22% 18% 6

24% 20% 7

26% 22% 8

28% 24% 9

30% 26% 10

32% 28% 11

34% 30% 12

36% 32% 13

38% 34% 14

40% 36% 15

42% 38% 16

44% 40% 17

46% 42% 18

48% 44% 19



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Appendix G of Standard 90.1-2007 requires that the energy analysis done for the building performance rating method include all the energy costs associated with the building project. To achieve points under this credit, the proposed design must meet the following criteria:

n Compliance with the mandatory provisions (Sections 5.4, 6.4, 7.4, 8.4, 9.4 and 10.4) in Standard 90.1-2007 (with errata but without addenda).

n Inclusion of all the energy costs within and associated with the building project.

n Comparison against a baseline building that complies with Appendix G of Standard 90.1-2007 (with errata but without addenda). The default process energy cost is 25% of the total energy cost for the baseline building. If the building’s process energy cost is less than 25% of the baseline building energy cost, the LEED submittal must include documentation substantiating that process energy inputs are appropriate.

For the purpose of this analysis, process energy is considered to include, but is not limited to, office and general miscellaneous equipment, computers, elevators and escalators, kitchen cooking and refrigeration, laundry washing and drying, lighting exempt from the lighting power allowance (e.g., lighting integral to medical equipment) and other (e.g., waterfall pumps).

Regulated (non-process) energy includes lighting (e.g., for the interior, parking garage, surface parking, façade, or building grounds, etc. except as noted above), heating, ventilating, and air conditioning (HVAC) (e.g., for space heating, space cooling, fans, pumps, toilet exhaust, parking garage ventilation, kitchen hood exhaust, etc.), and service water heating for domestic or space heating purposes.

For this credit, process loads must be identical for both the baseline building performance rating and the proposed building performance rating. However, project teams may follow the exceptional calculation method (ANSI/ASHRAE/IESNA Standard 90.1-2007 G2.5) to document measures that reduce process loads. Documentation of process load energy savings must include a list of the assumptions made for both the base and proposed design, and theoretical or empirical information supporting these assumptions.

Projects in California may use Title 24-2005, Part 6 in place of ANSI/ASHRAE/IESNA Standard 90.1-2007 for Option 1.

or

oPtioN 2. Prescriptive Compliance Path: asHraE advanced Energy Design Guide (1 point)Comply with the prescriptive measures of the ASHRAE Advanced Energy Design Guide appropriate to the project scope, outlined below. Project teams must comply with all applicable criteria as established in the Advanced Energy Design Guide for the climate zone in which the building is located.

PatH 1. asHraE advanced Energy Design Guide for small office Buildings 2004The building must meet the following requirements:


n Office occupancy.

PatH 2. asHraE advanced Energy Design Guide for small retail Buildings 2006 The building must meet the following requirements:


n Retail occupancy.


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PatH 3. asHraE advanced Energy Design Guide for small warehouses and self storage Buildings 2008

The building must meet the following requirements:


n Warehouse or self-storage occupancy.

or

oPtioN 3. Prescriptive Compliance Path: advanced Buildings™ Core Performance™ Guide (1–3 points)

Comply with the prescriptive measures identified in the Advanced Buildings™ Core Performance™ Guide developed by the New Buildings Institute. The building must meet the following requirements:


n Comply with Section 1: Design Process Strategies, and Section 2: Core Performance Requirements.

n Health care, warehouse or laboratory projects are ineligible for this path.

Points achieved under Option 3 (1 point):

n 1 point is available for all projects (office, school, public assembly, and retail projects) less than 100,000 square feet that comply with Sections 1 and 2 of the Core Performance Guide.

n Up to 2 additional points are available to projects that implement performance strategies listed in Section 3, Enhanced Performance. For every 3 strategies implemented from this section, 1 point is available.

n The following strategies are addressed by other aspects of LEED and are not eligible for additional points under EA Credit 1:

• 3.1 — Cool Roofs

• 3.8 — Night Venting

• 3.13 — Additional Commissioning

potential technologies & StrategiesDesign the building envelope and systems to maximize energy performance. Use a computer simulation model to assess the energy performance and identify the most cost-effective energy efficiency measures. Quantify energy performance compared with a baseline building.

If local code has demonstrated quantitative and textual equivalence following, at a minimum, the U.S. Department of Energy (DOE) standard process for commercial energy code determination, the results of that analysis may be used to correlate local code performance with ANSI/ASHRAE/IESNA Standard 90.1-2007. Details on the DOE process for commercial energy code determination can be found at http://www.energycodes.gov/implement/determinations_com.stm.




38

ea Credit 2: on-site renewable energy

1–7 points

intentTo encourage and recognize increasing levels of on-site renewable energy self-supply to reduce environmental and economic impacts associated with fossil fuel energy use.

requirementsUse on-site renewable energy systems to offset building energy costs. Calculate project performance by expressing the energy produced by the renewable systems as a percentage of the building’s annual energy cost and use the table below to determine the number of points achieved.

Use the building annual energy cost calculated in EA Credit 1: Optimize Energy Performance or the U.S. Department of Energy’s Commercial Buildings Energy Consumption Survey database to determine the estimated electricity use.

The minimum renewable energy percentage for each point threshold is as follows:

Percentage Renewable Energy Points

1% 1

3% 2

5% 3

7% 4

9% 5

11% 6

13% 7

potential technologies & StrategiesAssess the project for nonpolluting and renewable energy potential including solar, wind, geothermal, low-impact hydro, biomass and bio-gas strategies. When applying these strategies, take advantage of net metering with the local utility.


39

ea Credit 3: enhanced Commissioning

2 points

intentTo begin the commissioning process early in the design process and execute additional activities after systems performance verification is completed.

requirementsImplement, or have a contract in place to implement, the following additional commissioning process activities in addition to the requirements of EA Prerequisite 1: Fundamental Commissioning of Building Energy Systems and in accordance with the LEED Reference Guide for Green Building Design and Construction, 2009 Edition:

n Prior to the start of the construction documents phase, designate an independent commissioning authority (CxA) to lead, review and oversee the completion of all commissioning process activities.

• The CxA must have documented commissioning authority experience in at least 2 building projects.

• The individual serving as the CxA:

– Must be independent of the work of design and construction.

– Must not be an employee of the design firm, though he or she may be contracted through them.

– Must not be an employee of, or contracted through, a contractor or construction manager holding construction contracts.

– May be a qualified employee or consultant of the owner.

• The CxA must report results, findings and recommendations directly to the owner.

n The CxA must conduct, at a minimum, 1 commissioning design review of the owner’s project requirements basis of design, and design documents prior to the mid-construction documents phase and back-check the review comments in the subsequent design submission.

n The CxA must review contractor submittals applicable to systems being commissioned for compliance with the owner’s project requirements and basis of design. This review must be concurrent with the review of the architect or engineer of record and submitted to the design team and the owner.

n The CxA or other project team members must develop a systems manual that gives future operating staff the information needed to understand and optimally operate the commissioned systems.

n The CxA or other project team members must verify that the requirements for training operating personnel and building occupants have been completed.

n The CxA must be involved in reviewing the operation of the building with operations and maintenance (O&M) staff and occupants within 10 months after substantial completion. A plan for resolving outstanding commissioning-related issues must be included.


40

potential technologies & StrategiesAlthough it is preferable that the CxA be contracted by the owner, for the enhanced commissioning credit the CxA may also be contracted through the design firms or construction management firms not holding construction contracts.

The LEED Reference Guide for Green Building Design and Construction, 2009 Edition provides detailed guidance on the rigor expected for the following process activities:

n Commissioning design review

n Commissioning submittal review

n Systems manual.


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ea Credit 4: enhanced refrigerant Management

2 points

intentTo reduce ozone depletion and support early compliance with the Montreal Protocol while minimizing direct contributions to climate change.

requirements

oPtioN 1Do not use refrigerants.

or

oPtioN 2Select refrigerants and heating, ventilation, air conditioning and refrigeration (HVAC&R) equipment that minimize or eliminate the emission of compounds that contribute to ozone depletion and climate change. The base building HVAC&R equipment must comply with the following formula, which sets a maximum threshold for the combined contributions to ozone depletion and global warming potential:

LCGwP + LCoDP x 105 ≤ 100

Calculation definitions for LCGWP + LCODP x 105 ≤ 100

LCoDP = [oDPr x (Lr x Life +Mr) x rc]/Life

LCGwP = [GwPr x (Lr x Life +Mr) x rc]/Life

LCoDP: Lifecycle ozone Depletion Potential (lb CfC 11/ton-Year)

LCGwP: Lifecycle Direct Global warming Potential (lb Co2/ton-Year)

GwPr: Global warming Potential of refrigerant (0 to 12,000 lb Co2/lbr)

oDPr: ozone Depletion Potential of refrigerant (0 to 0.2 lb CfC 11/lbr)

Lr: refrigerant Leakage rate (0.5% to 2.0%; default of 2% unless otherwise demonstrated)

Mr: End-of-life refrigerant Loss (2% to 10%; default of 10% unless otherwise demonstrated)

rc: refrigerant Charge (0.5 to 5.0 lbs of refrigerant per ton of gross ari rated cooling capacity)

Life: Equipment Life (10 years; default based on equipment type, unless otherwise demonstrated)

For multiple types of equipment, a weighted average of all base building HVAC&R equipment must be calculated using the following formula:

∑ ( LCGwP + LCoDP x 105 ) x Qunit

——————————————————————————————Qtotal ≤ 100


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Calculation definitions for [ ∑ (LCGWP + LCODP x 105) x Qunit ] / Qtotal ≤ 100

Qunit = Gross ari rated cooling capacity of an individual HvaC or refrigeration unit (tons)

Qtotal = total gross ari rated cooling capacity of all HvaC or refrigeration

Small HVAC units (defined as containing less than 0.5 pounds of refrigerant) and other equipment, such as standard refrigerators, small water coolers and any other cooling equipment that contains less than 0.5 pounds of refrigerant, are not considered part of the base building system and are not subject to the requirements of this credit.

Do not operate or install fire suppression systems that contain ozone-depleting substances such as CFCs, hydrochlorofluorocarbons (HCFCs) or halons.

potential technologies & StrategiesDesign and operate the facility without mechanical cooling and refrigeration equipment. Where mechanical cooling is used, utilize base building HVAC&R systems for the refrigeration cycle that minimize direct impact on ozone depletion and global climate change. Select HVAC&R equipment with reduced refrigerant charge and increased equipment life. Maintain equipment to prevent leakage of refrigerant to the atmosphere. Use fire suppression systems that do not contain HCFCs or halons.


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ea Credit 5: Measurement and Verification

3 points

intentTo provide for the ongoing accountability of building energy consumption over time.

requirements

oPtioN 1Develop and implement a measurement and verification (M&V) plan consistent with Option D: Calibrated Simulation (Savings Estimation Method 2) as specified in the International Performance Measurement & Verification Protocol (IPMVP) Volume III: Concepts and Options for Determining Energy Savings in New Construction, April 2003.

The M&V period must cover at least 1 year of post-construction occupancy.

Provide a process for corrective action if the results of the M&V plan indicate that energy savings are not being achieved.

or

oPtioN 2Develop and implement a measurement and verification (M&V) plan consistent with Option B: Energy Conservation Measure Isolation, as specified in the International Performance Measurement & Verification Protocol (IPMVP) Volume III: Concepts and Options for Determining Energy Savings in New Construction, April 2003.

The M&V period must cover at least 1 year of post-construction occupancy.

Provide a process for corrective action if the results of the M&V plan indicate that energy savings are not being achieved.

potential technologies & StrategiesDevelop an M&V plan to evaluate building and/or energy system performance. Characterize the building and/or energy systems through energy simulation or engineering analysis. Install the necessary metering equipment to measure energy use. Track performance by comparing predicted performance to actual performance, broken down by component or system as appropriate. Evaluate energy efficiency by comparing actual performance to baseline performance.

While the IPMVP describes specific actions for verifying savings associated with energy conservation measures (ECMs) and strategies, this LEED credit expands upon typical IPMVP M&V objectives. Measurement & verification activities should not necessarily be confined to energy systems where ECMs or energy conservation strategies have been implemented. The IPMVP provides guidance on M&V strategies and their appropriate applications for various situations. These strategies should be used in conjunction with monitoring and trend logging of significant energy systems to provide for the ongoing accountability of building energy performance.


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For the corrective action process, consider installing diagnostics within the control system to alert the staff when equipment is not being optimally operated. Conditions that might warrant alarms to alert staff could include:

n Leaking valves in the cooling and heating coils within air handling units;

n Missed economizer opportunities (e.g., faulty economizer damper controls) ;

n Software and manual overrides allowing equipment to operate 24 hours a day/7 days a week;

n Equipment operation during unusual circumstances (e.g., boiler on when outside air temperature is above 65 °F).

Besides control diagnostics, consider employing retro-commissioning services or dedicating staff to investigate increases in energy usage (such a staff member is usually a resource conservation manager — see http://www.energy.state.or.us/rcm/rcmhm.htm for additional information).

http://www.energy


45

ea Credit 6: Green power

2 points

intentTo encourage the development and use of grid-source, renewable energy technologies on a net zero pollution basis.

requirementsEngage in at least a 2-year renewable energy contract to provide at least 35% of the building’s electricity from renewable sources, as defined by the Center for Resource Solutions’ Green-e Energy product certification requirements.

All purchases of green power shall be based on the quantity of energy consumed, not the cost.

oPtioN 1. Determine Baseline Electricity useUse the annual electricity consumption from the results of EA Credit 1: Optimize Energy Performance.

or

oPtioN 2. Estimate Baseline Electricity useUse the U.S. Department of Energy’s Commercial Buildings Energy Consumption Survey database to determine the estimated electricity use.

potential technologies & StrategiesDetermine the energy needs of the building and investigate opportunities to engage in a green power contract. Green power is derived from solar, wind, geothermal, biomass or low-impact hydro sources. Visit http://www.green-e.org/energy for details about the Green-e Energy program. The green power product purchased to comply with credit requirements need not be Green-e Energy certified. Other sources of green power are eligible if they satisfy the Green-e Energy program’s technical requirements. Renewable energy certificates (RECs), tradable renewable certificates (TRCs), green tags and other forms of green power that comply with the technical requirements of the Green-e Energy program may be used to document compliance with this credit.

http://www.green-e.org/energy

http://www.green-e.org/energy


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47

Mr prerequisite 1: Storage and Collection of recyclables

required

intentTo facilitate the reduction of waste generated by building occupants that is hauled to and disposed of in landfills.

requirementsProvide an easily-accessible dedicated area or areas for the collection and storage of materials for recycling for the entire building. Materials must include, at a minimum: paper, corrugated cardboard, glass, plastics and metals.

potential technologies & StrategiesDesignate an area for recyclable collection and storage that is appropriately sized and located in a convenient area. Identify local waste handlers and buyers for glass, plastic, metals, office paper, newspaper, cardboard and organic wastes. Instruct occupants on recycling procedures. Consider employing cardboard balers, aluminum can crushers, recycling chutes and other waste management strategies to further enhance the recycling program.


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Mr Credit 1.1: Building reuse—Maintain existing walls, floors and roof

1–3 points

intentTo extend the lifecycle of existing building stock, conserve resources, retain cultural resources, reduce waste and reduce environmental impacts of new buildings as they relate to materials manufacturing and transport.

requirementsMaintain the existing building structure (including structural floor and roof decking) and envelope (the exterior skin and framing, excluding window assemblies and non-structural roofing material). The minimum percentage building reuse for each point threshold is as follows:

Building Reuse Points

55% 1

75% 2

95% 3

Hazardous materials that are remediated as a part of the project must be excluded from the calculation of the percentage maintained. If the project includes an addition that is more than 2 times the square footage of the existing building, this credit is not applicable.

potential technologies & StrategiesConsider reusing existing, previously-occupied building structures, envelopes and elements. Remove elements that pose a contamination risk to building occupants and upgrade components that would improve energy and water efficiency such as windows, mechanical systems and plumbing fixtures.


49

Mr Credit 1.2: Building reuse—Maintain interior nonstructural elements

1 point

intentTo extend the lifecycle of existing building stock, conserve resources, retain cultural resources, reduce waste and reduce environmental impacts of new buildings as they relate to materials manufacturing and transport.

requirementsUse existing interior nonstructural elements (e.g., interior walls, doors, floor coverings and ceiling systems) in at least 50% (by area) of the completed building, including additions. If the project includes an addition with square footage more than 2 times the square footage of the existing building, this credit is not applicable.

potential technologies & StrategiesConsider reusing existing building structures, envelopes and interior nonstructural elements. Remove elements that pose a contamination risk to building occupants, and upgrade components that would improve energy and water efficiency such as mechanical systems and plumbing fixtures. Quantify the extent of building reuse.


50

Mr Credit 2: Construction waste Management

1–2 points

intentTo divert construction and demolition debris from disposal in landfills and incineration facilities. Redirect recyclable recovered resources back to the manufacturing process and reusable materials to appropriate sites.

requirementsRecycle and/or salvage nonhazardous construction and demolition debris. Develop and implement a construction waste management plan that, at a minimum, identifies the materials to be diverted from disposal and whether the materials will be sorted on-site or comingled. Excavated soil and land-clearing debris do not contribute to this credit. Calculations can be done by weight or volume, but must be consistent throughout. The minimum percentage debris to be recycled or salvaged for each point threshold is as follows:

Recycled or Salvaged Points

50% 1

75% 2

potential technologies & StrategiesEstablish goals for diversion from disposal in landfills and incineration facilities and adopt a construction waste management plan to achieve these goals. Consider recycling cardboard, metal, brick, mineral fiber panel, concrete, plastic, clean wood, glass, gypsum wallboard, carpet and insulation. Construction debris processed into a recycled content commodity that has an open market value (e.g., wood derived fuel [WDF], alternative daily cover material, etc.) may be applied to the construction waste calculation. Designate a specific area(s) on the construction site for segregated or comingled collection of recyclable materials, and track recycling efforts throughout the construction process. Identify construction haulers and recyclers to handle the designated materials. Note that diversion may include donation of materials to charitable organizations and salvage of materials on-site.


51

Mr Credit 3: Materials reuse

1–2 points

intentTo reuse building materials and products to reduce demand for virgin materials and reduce waste, thereby lessening impacts associated with the extraction and processing of virgin resources.

requirementsUse salvaged, refurbished or reused materials, the sum of which constitutes at least 5% or 10%, based on cost, of the total value of materials on the project. The minimum percentage materials reused for each point threshold is as follows:

Reused Materials Points

5% 1

10% 2

Mechanical, electrical and plumbing components and specialty items such as elevators and equipment cannot be included in this calculation. Include only materials permanently installed in the project. Furniture may be included if it is included consistently in MR Credit 3: Materials Reuse through MR Credit 7: Certified Wood.

potential technologies & StrategiesIdentify opportunities to incorporate salvaged materials into the building design, and research potential material suppliers. Consider salvaged materials such as beams and posts, flooring, paneling, doors and frames, cabinetry and furniture, brick, and decorative items.


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Mr Credit 4: recycled Content

1–2 points

intentTo increase demand for building products that incorporate recycled content materials, thereby reducing impacts resulting from extraction and processing of virgin materials.

requirementsUse materials with recycled content1 such that the sum of postconsumer2 recycled content plus 1/2 of the preconsumer3 content constitutes at least 10% or 20%, based on cost, of the total value of the materials in the project. The minimum percentage materials recycled for each point threshold is as follows:

Recycled Content Points

10% 1

20% 2

The recycled content value of a material assembly is determined by weight. The recycled fraction of the assembly is then multiplied by the cost of assembly to determine the recycled content value.

Mechanical, electrical and plumbing components and specialty items such as elevators cannot be included in this calculation. Include only materials permanently installed in the project. Furniture may be included if it is included consistently in MR Credit 3: Materials Reuse through MR Credit 7: Certified Wood.

potential technologies & Strategies Establish a project goal for recycled content materials, and identify material suppliers that can achieve this goal. During construction, ensure that the specified recycled content materials are installed. Consider a range of environmental, economic and performance attributes when selecting products and materials.

1 Recycled content is defined in accordance with the International Organization of Standards document, ISO 14021 — Environmental labels and declarations — Self-declared environmental claims (Type II environmental labeling).

2 Postconsumer material is defined as waste material generated by households or by commercial, industrial and institutional facilities in their role as end-users of the product, which can no longer be used for its intended purpose.

3 Preconsumer material is defined as material diverted from the waste stream during the manufacturing process. Reutilization of materials (i.e., rework, regrind or scrap generated in a process and capable of being reclaimed within the same process that generated it) is excluded.


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Mr Credit 5: regional Materials

1–2 points

intentTo increase demand for building materials and products that are extracted and manufactured within the region, thereby supporting the use of indigenous resources and reducing the environmental impacts resulting from transportation.

requirementsUse building materials or products that have been extracted, harvested or recovered, as well as manufactured, within 500 miles of the project site for a minimum of 10% or 20%, based on cost, of the total materials value. If only a fraction of a product or material is extracted, harvested, or recovered and manufactured locally, then only that percentage (by weight) can contribute to the regional value. The minimum percentage regional materials for each point threshold is as follows:

Regional Materials Points

10% 1

20% 2

Mechanical, electrical and plumbing components and specialty items such as elevators and equipment must not be included in this calculation. Include only materials permanently installed in the project. Furniture may be included if it is included consistently in MR Credit 3: Materials Reuse through MR Credit 7: Certified Wood.

potential technologies & StrategiesEstablish a project goal for locally sourced materials, and identify materials and material suppliers that can achieve this goal. During construction, ensure that the specified local materials are installed, and quantify the total percentage of local materials installed. Consider a range of environmental, economic and performance attributes when selecting products and materials.


54

Mr Credit 6: rapidly renewable Materials

1 point

intentTo reduce the use and depletion of finite raw materials and long-cycle renewable materials by replacing them with rapidly renewable materials.

requirementsUse rapidly renewable building materials and products for 2.5% of the total value of all building materials and products used in the project, based on cost. Rapidly renewable building materials and products are made from plants that are typically harvested within a 10-year or shorter cycle.

potential technologies & StrategiesEstablish a project goal for rapidly renewable materials, and identify products and suppliers that can support achievement of this goal. Consider materials such as bamboo, wool, cotton insulation, agrifiber, linoleum, wheatboard, strawboard and cork. During construction, ensure that the specified renewable materials are installed.


55

Mr Credit 7: Certified wood

1 point

intentTo encourage environmentally responsible forest management.

requirementsUse a minimum of 50% (based on cost) of wood-based materials and products that are certified in accordance with the Forest Stewardship Council’s principles and criteria, for wood building components. These components include at a minimum, structural framing and general dimensional framing, flooring, sub-flooring, wood doors and finishes.

Include only materials permanently installed in the project. Wood products purchased for temporary use on the project (e.g., formwork, bracing, scaffolding, sidewalk protection, and guard rails) may be included in the calculation at the project team’s discretion. If any such materials are included, all such materials must be included in the calculation. If such materials are purchased for use on multiple projects, the applicant may include these materials for only one project, at its discretion. Furniture may be included if it is included consistently in MR Credits 3, Materials Reuse, through MR Credit 7, Certified Wood.

potential technologies & StrategiesEstablish a project goal for FSC-certified wood products and identify suppliers that can achieve this goal. During construction, ensure that the FSC-certified wood products are installed and quantify the total percentage of FSC-certified wood products installed.


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57

ieQ prerequisite 1: Minimum indoor air Quality performance

required

intentTo establish minimum indoor air quality (IAQ) performance to enhance indoor air quality in buildings, thus contributing to the comfort and well-being of the occupants.

requirements

Meet the minimum requirements of Sections 4 through 7 of ASHRAE Standard 62.1-2007, Ventilation for Acceptable Indoor Air Quality (with errata but without addenda1).

aND

CasE 1. Mechanically ventilated spaces Mechanical ventilation systems must be designed using the ventilation rate procedure or the applicable local code, whichever is more stringent.

CasE 2. Naturally ventilated spacesNaturally ventilated buildings must comply with ASHRAE Standard 62.1-2007, Paragraph 5.1 (with errata but without addenda1).

potential technologies & StrategiesDesign ventilation systems to meet or exceed the minimum outdoor air ventilation rates as described in the ASHRAE standard. Balance the impacts of ventilation rates on energy use and indoor air quality to optimize for energy efficiency and occupant comfort. Use the ASHRAE Standard 62.1-2007 Users Manual (with errata but without addenda1) for detailed guidance on meeting the referenced requirements.

1 Project teams wishing to use ASHRAE approved addenda for the purposes of this prerequisite may do so at their discretion. Addenda must be applied consistently across all LEED credits.


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ieQ prerequisite 2: environmental tobacco Smoke (etS) Control

required

intentTo prevent or minimize exposure of building occupants, indoor surfaces and ventilation air distribution systems to environmental tobacco smoke (ETS).

requirements

oPtioN 1 Prohibit smoking in the building.

Prohibit on-property smoking within 25 feet of entries, outdoor air intakes and operable windows. Provide signage to allow smoking in designated areas, prohibit smoking in designated areas or prohibit smoking on the entire property.

or

oPtioN 2

CasE 1. Non-residential ProjectsProhibit smoking in the building except in designated smoking areas.


Provide designated smoking rooms designed to contain, capture and remove ETS from the building. At a minimum, the smoking room must be directly exhausted to the outdoors, away from air intakes and building entry paths, with no recirculation of ETS-containing air to nonsmoking areas and enclosed with impermeable deck-to-deck partitions. Operate exhaust sufficient to create a negative pressure differential with the surrounding spaces of at least an average of 5 Pascals (Pa) (0.02 inches of water gauge) and a minimum of 1 Pa (0.004 inches of water gauge) when the doors to the smoking rooms are closed.

Verify performance of the smoking rooms’ differential air pressures by conducting 15 minutes of measurement, with a minimum of 1 measurement every 10 seconds, of the differential pressure in the smoking room with respect to each adjacent area and in each adjacent vertical chase with the doors to the smoking room closed. Conduct the testing with each space configured for worst-case conditions of transport of air from the smoking rooms (with closed doors) to adjacent spaces.


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CasE 2. residential and Hospitality ProjectsProhibit smoking in all common areas of the building.

Locate any exterior designated smoking areas, including balconies where smoking is permitted, at least 25 feet from entries, outdoor air intakes and operable windows opening to common areas.


Weather-strip all exterior doors and operable windows in the residential units to minimize leakage from outdoors.

Minimize uncontrolled pathways for ETS transfer between individual residential units by sealing penetrations in walls, ceilings and floors in the residential units and by sealing vertical chases adjacent to the units.

Weather-strip all doors in the residential units leading to common hallways to minimize air leakage into the hallway1.

Demonstrate acceptable sealing of residential units by a blower door test conducted in accordance with ANSI/ASTM-E779-03, Standard Test Method for Determining Air Leakage Rate By Fan Pressurization.

Use the progressive sampling methodology defined in Chapter 4 (Compliance Through Quality Construction) of the Residential Manual for Compliance with California’s 2001 Energy Efficiency Standards. Residential units must demonstrate less than 1.25 square inches leakage area per 100 square feet of enclosure area (i.e., sum of all wall, ceiling and floor areas).

potential technologies & StrategiesProhibit smoking in commercial buildings or effectively control the ventilation air in smoking rooms. For residential buildings, prohibit smoking in common areas and design building envelope and systems to minimize ETS transfer among dwelling units.

1 If the common hallways are pressurized with respect to the residential units then doors in the residential units leading to the common hallways need not be weather-stripped provided that the positive differential pressure is demonstrated as in Option 2, Case 1 above, considering the residential unit as the smoking room.


60

ieQ Credit 1: outdoor air Delivery Monitoring

1 point

intentTo provide capacity for ventilation system monitoring to help promote occupant comfort and well-being.

requirementsInstall permanent monitoring systems to ensure that ventilation systems maintain design minimum requirements. Configure all monitoring equipment to generate an alarm when airflow values or carbon dioxide (CO2) levels vary by 10% or more from the design values via either a building automation system alarm to the building operator or a visual or audible alert to the building occupants

aND

CasE 1. Mechanically ventilated spacesMonitor CO2 concentrations within all densely occupied spaces (those with a design occupant density of 25 people or more per 1,000 square feet). CO2 monitors must be between 3 and 6 feet above the floor.1

Provide a direct outdoor airflow measurement device capable of measuring the minimum outdoor air intake flow with an accuracy of plus or minus 15% of the design minimum outdoor air rate, as defined by ASHRAE 62.1-2007 (with errata but without addenda2) for mechanical ventilation systems where 20% or more of the design supply airflow serves nondensely occupied spaces.

CasE 2. Naturally ventilated spacesMonitor CO2 concentrations within all naturally ventilated spaces. CO2 monitors must be between 3 and 6 feet above the floor. One CO2 sensor may be used to monitor multiple nondensely occupied spaces if the natural ventilation design uses passive stack(s) or other means to induce airflow through those spaces equally and simultaneously without intervention by building occupants.

potential technologies & StrategiesInstall CO2 and airflow measurement equipment and feed the information to the heating, ventilating and air conditioning (HVAC) system and/or building automation system (BAS) to trigger corrective action, if applicable. If such automatic controls are not feasible with the building systems, use the measurement equipment to trigger alarms that inform building operators or occupants of a possible deficiency in outdoor air delivery.

1 CO2 monitoring is required in densely occupied spaces, in addition to outdoor air intake flow measurement.2 Project teams wishing to use ASHRAE approved addenda for the purposes of this credit may do so at their discretion. Addenda must be applied

consistently across all LEED credits.


61

ieQ Credit 2: increased Ventilation

1 point

intentTo provide additional outdoor air ventilation to improve indoor air quality (IAQ) and promote occupant comfort, well-being and productivity.

requirements

CasE 1. Mechanically ventilated spacesIncrease breathing zone outdoor air ventilation rates to all occupied spaces by at least 30% above the minimum rates required by ASHRAE Standard 62.1-2007 (with errata but without addenda1) as determined by IEQ Prerequisite 1: Minimum Indoor Air Quality Performance.

CasE 2. Naturally ventilated spacesDetermine that natural ventilation is an effective strategy for the project by following the flow diagram process shown in Figure 2.8 of the CIBSE Applications Manual 10: 2005, Natural Ventilation in Non-domestic Buildings.

aND

oPtioN 1Show that the natural ventilation systems design meets the recommendations set forth in the CIBSE manuals appropriate to the project space.

PATH 1. CIBSE Applications Manual 10: 2005, Natural Ventilation in Non-domestic Buildings

PATH 2. CIBSE AM 13:2000, Mixed Mode Ventilation

or

oPtioN 2Use a macroscopic, multizone, analytic model to predict that room-by-room airflows will effectively naturally ventilate, defined as providing the minimum ventilation rates required by ASHRAE 62.1-2007 Chapter 6 (with errata but without addenda1), for at least 90% of occupied spaces.

potential technologies & StrategiesFor mechanically ventilated spaces: Use heat recovery, where appropriate, to minimize the additional energy consumption associated with higher ventilation rates.

For naturally ventilated spaces, follow the 8 design steps described in the Carbon Trust Good Practice Guide 237:

n Develop design requirements.

n Plan airflow paths.



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n Identify building uses and features that might require special attention.

n Determine ventilation requirements.

n Estimate external driving pressures.

n Select types of ventilation devices.

n Size ventilation devices.

n Analyze the design.

Use public domain software such as NIST’s CONTAM, Multizone Modeling Software, along with LoopDA, Natural Ventilation Sizing Tool, to analytically predict room-by-room airflows.


63

ieQ Credit 3.1: Construction indoor air Quality Management plan—During Construction

1 point

intentTo reduce indoor air quality (IAQ) problems resulting from construction or renovation and promote the comfort and well-being of construction workers and building occupants.

requirementsDevelop and implement an IAQ management plan for the construction and preoccupancy phases of the building as follows:

n During construction, meet or exceed the recommended control measures of the Sheet Metal and Air Conditioning National Contractors Association (SMACNA) IAQ Guidelines For Occupied Buildings Under Construction, 2nd Edition 2007, ANSI/SMACNA 008-2008 (Chapter 3).

n Protect stored on-site and installed absorptive materials from moisture damage.

n If permanently installed air handlers are used during construction, filtration media with a minimum efficiency reporting value (MERV) of 8 must be used at each return air grille, as determined by ASHRAE Standard 52.2-1999 (with errata but without addenda1). Replace all filtration media immediately prior to occupancy.

potential technologies & StrategiesAdopt an IAQ management plan to protect the heating, ventilating and air conditioning (HVAC) system during construction, control pollutant sources and interrupt contamination pathways. Sequence the installation of materials to avoid contamination of absorptive materials, such as insulation, carpeting, ceiling tile and gypsum wallboard. Coordinate with IEQ Credit 3.2: Construction IAQ Management Plan — Before Occupancy and IEQ Credit 5: Indoor Chemical & Pollutant Source Control to determine the appropriate specifications and schedules for filtration media.

If possible, avoid using permanently installed air handlers for temporary heating/cooling during construction. Consult the LEED Reference Guide for Green Building Design and Construction, 2009 Edition for more detailed information on how to ensure the well-being of construction workers and building occupants if permanently installed air handlers must be used during construction.



64

ieQ Credit 3.2: Construction indoor air Quality Management plan—Before occupancy

1 point

intentTo reduce indoor air quality (IAQ) problems resulting from construction or renovation to promote the comfort and well-being of construction workers and building occupants.

requirementsDevelop an IAQ management plan and implement it after all finishes have been installed and the building has been completely cleaned before occupancy.

oPtioN 1. flush-out1

PatH 1After construction ends, prior to occupancy and with all interior finishes installed, install new filtration media and , perform a building flush-out by supplying a total air volume of 14,000 cubic feet of outdoor air per square foot of floor area while maintaining an internal temperature of at least 60° F and relative humidity no higher than 60%.

or

PatH 2If occupancy is desired prior to completion of the flush-out, the space may be occupied following delivery of a minimum of 3,500 cubic feet of outdoor air per square foot of floor area. Once the space is occupied, it must be ventilated at a minimum rate of 0.30 cubic feet per minute (cfm) per square foot of outside air or the design minimum outside air rate determined in IEQ Prerequisite 1: Minimum Indoor Air Quality Performance, whichever is greater. During each day of the flush-out period, ventilation must begin a minimum of 3 hours prior to occupancy and continue during occupancy. These conditions must be maintained until a total of 14,000 cubic feet per square foot of outside air has been delivered to the space.

or

oPtioN 2. air testingConduct baseline IAQ testing after construction ends and prior to occupancy using testing protocols consistent with the EPA Compendium of Methods for the Determination of Air Pollutants in Indoor Air and as additionally detailed in the LEED Reference Guide for Green Building Design and Construction, 2009 Edition.

1 All finishes must be installed prior to flush-out.


65

Demonstrate that the contaminant maximum concentration levels listed below are not exceeded:

Contaminant Maximum Concentration

formaldehyde 27 parts per billion

Particulates (PM10) 50 micrograms per cubic meter

total volatile organic compounds (tvoCs) 500 micrograms per cubic meter

4-Phenylcyclohexene (4-PCH)* 6.5 micrograms per cubic meter

Carbon monoxide (Co) 9 part per million and no greater than 2 parts per million above outdoor levels

* this test is only required if carpets and fabrics with styrene butadiene rubber (sBr) latex backing are installed as part of the base building systems.

For each sampling point where the maximum concentration limits are exceeded, conduct an additional flush-out with outside air and retest the noncompliant concentrations. Repeat until all requirements are met. When retesting noncompliant building areas, take samples from the same locations as in the first test, although it is not required.

Conduct the air sample testing as follows:

n All measurements must be conducted prior to occupancy, but during normal occupied hours with the building ventilation system started at the normal daily start time and operated at the minimum outside air flow rate for the occupied mode throughout the test.

n All interior finishes must be installed, including but not limited to millwork, doors, paint, carpet and acoustic tiles. Movable furnishings such as workstations and partitions should be in place for the testing, although it is not required.

n The number of sampling locations will depend on the size of the building and number of ventilation systems. For each portion of the building served by a separate ventilation system, the number of sampling points must not be less than 1 per 25,000 square feet or for each contiguous floor area, whichever is larger. Include areas with the least ventilation and greatest presumed source strength.

n Air samples must be collected between 3 and 6 feet from the floor to represent the breathing zone of occupants, and over a minimum 4-hour period.

potential technologies & StrategiesPrior to occupancy, perform a building flush-out or test the air contaminant levels in the building. The flush-out is often used where occupancy is not required immediately upon substantial completion of construction. IAQ testing can minimize schedule impacts but may be more costly. Coordinate with IEQ Credit 3.1: Construction IAQ Management Plan — During Construction and IEQ Credit 5: Indoor Chemical & Pollutant Source Control to determine the appropriate specifications and schedules for filtration media.

The intent of this credit is to eliminate IAQ problems that occur as a result of construction. Architectural finishes used in tenant build-outs constitute a significant source of air pollutants and must be addressed to qualify for this credit.


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ieQ Credit 4.1: low-emitting Materials—adhesives and Sealants

1 point

intentTo reduce the quantity of indoor air contaminants that are odorous, irritating and/or harmful to the comfort and well-being of installers and occupants.

requirementsAll adhesives and sealants used on the interior of the building (i.e., inside of the weatherproofing system and applied on-site) must comply with the following requirements as applicable to the project scope1:

n Adhesives, Sealants and Sealant Primers must comply with South Coast Air Quality Management District (SCAQMD) Rule #1168. Volatile organic compound (VOC) limits listed in the table below correspond to an effective date of July 1, 2005 and rule amendment date of January 7, 2005.

Architectural Applications VOC Limit

(g/L less water)Specialty Applications

VOC Limit (g/L less water)

indoor carpet adhesives 50 PvC welding 510

Carpet pad adhesives 50 CPvC welding 490

wood flooring adhesives 100 aBs welding 325

rubber floor adhesives 60 Plastic cement welding 250

subfloor adhesives 50 adhesive primer for plastic 550

Ceramic tile adhesives 65 Contact adhesive 80

vCt and asphalt adhesives 50 special purpose contact adhesive 250

Drywall and panel adhesives 50 structural wood member adhesive 140

Cove base adhesives 50 sheet applied rubber lining operations 850

Multipurpose construction adhesives 70 top and trim adhesive 250

structural glazing adhesives 100

Substrate Specific ApplicationsVOC Limit

(g/L less water)Sealants

VOC Limit (g/L less water)

Metal to metal 30 architectural 250

Plastic foams 50 Nonmembrane roof 300

Porous material (except wood) 50 roadway 250

wood 30 single-ply roof membrane 450

fiberglass 80 other 420

Sealant Primers VOC Limit (g/L less water)

architectural, nonporous 250

architectural, porous 775

other 750

1 The use of a VOC budget is permissible for compliance with this credit.


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n Aerosol Adhesives must comply with Green Seal Standard for Commercial Adhesives GS-36 requirements in effect on October 19, 2000.

Aerosol Adhesives VOC Limit

General purpose mist spray 65% voCs by weight

General purpose web spray 55% voCs by weight

special purpose aerosol adhesives (all types) 70% voCs by weight

potential technologies & StrategiesSpecify low-VOC materials in construction documents. Ensure that VOC limits are clearly stated in each section of the specifications where adhesives and sealants are addressed. Common products to evaluate include general construction adhesives, flooring adhesives, fire-stopping sealants, caulking, duct sealants, plumbing adhesives and cove base adhesives. Review product cut sheets, material safety data (MSD) sheets, signed attestations or other official literature from the manufacturer clearly identifying the VOC contents or compliance with referenced standards.


68

ieQ Credit 4.2: low-emitting Materials—paints and Coatings

1 point


requirementsPaints and coatings used on the interior of the building (i.e., inside of the weatherproofing system and applied on-site) must comply with the following criteria as applicable to the project scope1:

n Architectural paints and coatings applied to interior walls and ceilings must not exceed the volatile organic compound (VOC) content limits established in Green Seal Standard GS-11, Paints, 1st Edition, May 20, 1993.

n Anti-corrosive and anti-rust paints applied to interior ferrous metal substrates must not exceed the VOC content limit of 250 g/L established in Green Seal Standard GC-03, Anti-Corrosive Paints, 2nd Edition, January 7, 1997.

n Clear wood finishes, floor coatings, stains, primers, sealers, and shellacs applied to interior elements must not exceed the VOC content limits established in South Coast Air Quality Management District (SCAQMD) Rule 1113, Architectural Coatings, rules in effect on January 1, 2004.

potential technologies & StrategiesSpecify low-VOC paints and coatings in construction documents. Ensure that VOC limits are clearly stated in each section of the specifications where paints and coatings are addressed. Track the VOC content of all interior paints and coatings during construction.

1 The use of a VOC budget is permissible for compliance with this credit.


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ieQ Credit 4.3: low-emitting Materials—flooring Systems

1 point


requirements

oPtioN 1All flooring must comply with the following as applicable to the project scope:

n All carpet installed in the building interior must meet the testing and product requirements of the Carpet and Rug Institute Green Label Plus1 program.

n All carpet cushion installed in the building interior must meet the requirements of the Carpet and Rug Institute Green Label program.

n All carpet adhesive must meet the requirements of IEQ Credit 4.1: Adhesives and Sealants, which includes a volatile organic compound (VOC) limit of 50 g/L.

n All hard surface flooring must meet the requirements of the FloorScore2 standard (current as of the date of this rating system, or more stringent version) as shown with testing by an independent third-party. Mineral-based finish flooring products such as tile, masonry, terrazzo, and cut stone without integral organic-based coatings and sealants and unfinished/untreated solid wood flooring qualify for credit without any IAQ testing requirements. However, associated site-applied adhesives, grouts, finishes and sealers must be compliant for a mineral-based or unfinished/untreated solid wood flooring system to qualify for credit.

n Concrete, wood, bamboo and cork floor finishes such as sealer, stain and finish must meet the requirements of South Coast Air Quality Management District (SCAQMD) Rule 1113, Architectural Coatings, rules in effect on January 1, 2004.

n Tile setting adhesives and grout must meet South Coast Air Quality Management District (SCAQMD) Rule 1168. VOC limits correspond to an effective date of July 1, 2005 and rule amendment date of January 7, 2005.

or

oPtioN 2 All flooring elements installed in the building interior must meet the testing and product requirements of the California Department of Health Services Standard Practice for the Testing of Volatile Organic Emissions

1 The Green Label Plus program for carpets and its associated VOC emission criteria in micrograms per square meter per hour, along with information on testing method and sample collection developed by the Carpet & Rug Institute (CRI) in coordination with California’s Sustainable Building Task Force and the California Department of Public Health, are described in Section 9, Acceptable Emissions Testing for Carpet, DHS Standard Practice CA/DHS/EHLB/R-174, dated 07/15/04. This document is available at http://www.dhs.ca.gov/ps/deodc/ehlb/iaq/ VOCS/Section01350_7_15_2004_FINAL_PLUS_ADDENDUM-2004-01.pdf (also published as Section 01350 Section 9 [dated 2004] by the Collaborative for High Performance Schools [http://www.chps.net]).

2 FloorScore is a voluntary, independent certification program that tests and certifies hard surface flooring and associated products for compliance with criteria adopted in California for indoor air emissions of VOCs with potential health effects. The program uses a small-scale chamber test protocol and incorporates VOC emissions criteria, which are widely known as Section 1350, developed by the California Department of Health Services.

http://www.dhs.ca.gov/ps/deodc/ehlb/iaq/ VOCS/Section01350_7_15_2004_FINAL_PLUS_ADDENDUM-2004-01.pdf

http://www.dhs.ca.gov/ps/deodc/ehlb/iaq/ VOCS/Section01350_7_15_2004_FINAL_PLUS_ADDENDUM-2004-01.pdf

http://www.chps.net


70

from Various Sources Using Small-Scale Environmental Chambers, including 2004 Addenda. Mineral-based finish flooring products such as tile, masonry, terrazzo, and cut stone without integral organic-based coatings and sealants and unfinished/untreated solid wood flooring qualify for credit without any IAQ testing requirements. However, associated site-applied adhesives, grouts, finishes and sealers must be compliant for a mineral-based or unfinished/untreated solid wood flooring system to qualify for credit.

potential technologies & StrategiesClearly specify requirements for product testing and/or certification in the construction documents. Select products that are either certified under the Green Label Plus program or for which testing has been done by qualified independent laboratories in accordance with the appropriate requirements.


71

ieQ Credit 4.4: low-emitting Materials—Composite wood and agrifiber products

1 point


requirementsComposite wood and agrifiber products used on the interior of the building (i.e., inside the weatherproofing system) must contain no added urea-formaldehyde resins. Laminating adhesives used to fabricate on-site and shop-applied composite wood and agrifiber assemblies must not contain added urea-formaldehyde resins.

Composite wood and agrifiber products are defined as particleboard, medium density fiberboard (MDF), plywood, wheatboard, strawboard, panel substrates and door cores. Materials considered fixtures, furniture and equipment (FF&E) are not considered base building elements and are not included.

potential technologies & StrategiesSpecify wood and agrifiber products that contain no added urea-formaldehyde resins. Specify laminating adhesives for field and shop-applied assemblies that contain no added urea-formaldehyde resins. Review product cut sheets, material safety data (MSD) sheets, signed attestations or other official literature from the manufacturer.


72

ieQ Credit 5: indoor Chemical and pollutant Source Control

1 point

intentTo minimize building occupant exposure to potentially hazardous particulates and chemical pollutants.

requirementsDesign to minimize and control the entry of pollutants into buildings and later cross-contamination of regularly occupied areas through the following strategies:

n Employ permanent entryway systems at least 10 feet long in the primary direction of travel to capture dirt and particulates entering the building at regularly used exterior entrances. Acceptable entryway systems include permanently installed grates, grill s and slotted systems that allow for cleaning underneath. Roll-out mats are acceptable only when maintained on a weekly basis by a contracted service organization.

n Sufficiently exhaust each space where hazardous gases or chemicals may be present or used (e.g., garages, housekeeping and laundry areas, copying and printing rooms) to create negative pressure with respect to adjacent spaces when the doors to the room are closed. For each of these spaces, provide self-closing doors and deck-to-deck partitions or a hard-lid ceiling. The exhaust rate must be at least 0.50 cubic feet per minute (cfm) per square foot with no air recirculation. The pressure differential with the surrounding spaces must be at least 5 Pascals (Pa) (0.02 inches of water gauge) on average and 1 Pa (0.004 inches of water) at a minimum when the doors to the rooms are closed.

n In mechanically ventilated buildings, each ventilation system that supplies outdoor air shall comply with the following:

– Particle filters or air cleaning devices shall be provided to clean the outdoor air at any location prior to its introduction to occupied spaces.

– These filters or devices shall be rated a minimum efficiency reporting value (MERV) of 13 or higher in accordance with ASHRAE Standard 52.2.

– Clean air Filtration media shall be installed in all air systems after completion of construction and prior to occupancy.

potential technologies & StrategiesDesign facility cleaning and maintenance areas with isolated exhaust systems for contaminants. Maintain physical isolation from the rest of the regularly occupied areas of the building. Install permanent architectural entryway systems such as grills or grates to prevent occupant-borne contaminants from entering the building. Install high-level filtration systems in air handling units processing both return air and outside supply air. Ensure that air handling units can accommodate required filter sizes and pressure drops.


73

ieQ Credit 6.1: Controllability of Systems—lighting

1 point

intentTo provide a high level of lighting system control by individual occupants or groups in multi-occupant spaces (e.g., classrooms and conference areas) and promote their productivity, comfort and well-being.

requirementsProvide individual lighting controls for 90% (minimum) of the building occupants to enable adjustments to suit individual task needs and preferences

Provide lighting system controls for all shared multi-occupant spaces to enable adjustments that meet group needs and preferences.

potential technologies & StrategiesDesign the building with occupant controls for lighting. Strategies to consider include lighting controls and task lighting. Integrate lighting systems controllability into the overall lighting design, providing ambient and task lighting while managing the overall energy use of the building.


74

ieQ Credit 6.2: Controllability of Systems—thermal Comfort

1 point

intentTo provide a high level of thermal comfort system control1 by individual occupants or groups in multi-occupant spaces (e.g., classrooms or conference areas) and promote their productivity, comfort and well-being.

requirementsProvide individual comfort controls for 50% (minimum) of the building occupants to enable adjustments to meet individual needs and preferences. Operable windows may be used in lieu of controls for occupants located 20 feet inside and 10 feet to either side of the operable part of a window. The areas of operable window must meet the requirements of ASHRAE Standard 62.1-2007 paragraph 5.1 Natural Ventilation (with errata but without addenda2).

Provide comfort system controls for all shared multi-occupant spaces to enable adjustments that meet group needs and preferences.

Conditions for thermal comfort are described in ASHRAE Standard 55-2004 (with errata but without addenda2) and include the primary factors of air temperature, radiant temperature, air speed and humidity.

potential technologies & StrategiesDesign the building and systems with comfort controls to allow adjustments to suit individual needs or those of groups in shared spaces. ASHRAE Standard 55-2004 (with errata but without addenda2) identifies the factors of thermal comfort and a process for developing comfort criteria for building spaces that suit the needs of the occupants involved in their daily activities. Control strategies can be developed to expand on the comfort criteria and enable individuals to make adjustments to suit their needs and preferences. These strategies may involve system designs incorporating operable windows, hybrid systems integrating operable windows and mechanical systems, or mechanical systems alone. Individual adjustments may involve individual thermostat controls, local diffusers at floor, desk or overhead levels, control of individual radiant panels or other means integrated into the overall building, thermal comfort systems and energy systems design. Designers should evaluate the closely tied interactions between thermal comfort as required by ASHRAE Standard 55-2004 (with errata but without addenda2) and acceptable indoor air quality as required by ASHRAE Standard 62.1-2007 (with errata but without addenda2), whether natural or mechanical ventilation.

1 For the purposes of this credit, comfort system control is defined as control over at least 1 of the following primary factors in the occupant’s vicinity: air temperature, radiant temperature, air speed and humidity.



75

ieQ Credit 7.1: thermal Comfort—Design

1 point

intentTo provide a comfortable thermal environment that promotes occupant productivity and well-being.

requirementsDesign heating, ventilating and air conditioning (HVAC) systems and the building envelope to meet the requirements of ASHRAE Standard 55-2004, Thermal Comfort Conditions for Human Occupancy (with errata but without addenda1). Demonstrate design compliance in accordance with the Section 6.1.1 documentation.

potential technologies & StrategiesEstablish comfort criteria according to ASHRAE 55-2004 (with errata but without addenda) that support the desired quality and occupant satisfaction with building performance. Design the building envelope and systems with the capability to meet the comfort criteria under expected environmental and use conditions. Evaluate air temperature, radiant temperature, air speed and relative humidity in an integrated fashion, and coordinate these criteria with IEQ Prerequisite 1: Minimum IAQ Performance, IEQ Credit 1: Outdoor Air Delivery Monitoring, and IEQ Credit 2: Increased Ventilation.



76

ieQ Credit 7.2: thermal Comfort—Verification

1 point in addition to ieQ credit 7.1

intentTo provide for the assessment of building occupant thermal comfort over time.

requirementsAchieve IEQ Credit 7.1: Thermal Comfort—Design

Provide a permanent monitoring system to ensure that building performance meets the desired comfort criteria as determined by IEQ Credit 7.1: Thermal Comfort—Design.

Agree to conduct a thermal comfort survey of building occupants within 6 to 18 months after occupancy. This survey should collect anonymous responses about thermal comfort in the building, including an assessment of overall satisfaction with thermal performance and identification of thermal comfort-related problems. Agree to develop a plan for corrective action if the survey results indicate that more than 20% of occupants are dissatisfied with thermal comfort in the building. This plan should include measurement of relevant environmental variables in problem areas in accordance with ASHRAE Standard 55-2004 (with errata but without addenda1).

Residential projects are not eligible for this credit.

potential technologies & StrategiesASHRAE 55-2004 provides guidance for establishing thermal comfort criteria and documenting and validating building performance to the criteria. While the standard is not intended for purposes of continuous monitoring and maintenance of the thermal environment, the principles expressed in the standard provide a basis for the design of monitoring and corrective action systems.



77

ieQ Credit 8.1: Daylight and Views—Daylight

1 point

intentTo provide building occupants with a connection between indoor spaces and the outdoors through the introduction of daylight and views into the regularly occupied areas of the building.

requirementsThrough 1 of the 4 options, achieve daylighting in at least the following spaces:

Regularly Occupied Spaces

Points

75% 1

oPtioN 1. simulationDemonstrate through computer simulations that 75% or more of all regularly occupied spaces areas achieve daylight illuminance levels of a minimum of 25 footcandles (fc) and a maximum of 500 fc in a clear sky condition on September 21 at 9 a.m. and 3 p.m. Areas with illuminance levels below or above the range do not comply. However, designs that incorporate view-preserving automated shades for glare control may demonstrate compliance for only the minimum 25 fc illuminance level.

or

oPtioN 2. PrescriptiveUse a combination of side-lighting and/or top-lighting to achieve a total daylighting zone (the floor area meeting the following requirements) that is at least 75% of all the regularly occupied spaces.

For the Side-lighting Daylight Zone (see diagram on the next page):

n Achieve a value, calculated as the product of the visible light transmittance (VLT) and window-to-floor area ratio (WFR) of daylight zone between 0.150 and 0.180. The window area included in the calculation must be at least 30 inches above the floor.

0.150 < vLt x wfr < 0.180

n The ceiling must not obstruct a line in section that joins the window-head to a line on the floor that is parallel to the plane of the window; Is twice the height of the window-head above the floor in, distance from the plane of the glass as measured perpendicular to the plane of the glass.

n Provide sunlight redirection and/or glare control devices to ensure daylight effectiveness.


78

For Top-lighting Daylight Zone (see diagram on the next page):

n The daylight zone under a skylight is the outline of the opening beneath the skylight, plus in each direction the lesser of:

• 70% of the ceiling height,

or• 1/2 the distance to the edge of the nearest skylight,

or • The distance to any permanent opaque partition (if transparent show VLT) farther than 70% of the

distance between the top of the partition and the ceiling.

n Achieve skylight roof coverage between 3% and 6% of the roof area with a minimum 0.5 VLT.

n The distance between the skylights must not be more than 1.4 times the ceiling height.

n A skylight diffuser, if used, must have a measured haze value of greater than 90% when tested according to ASTM D1003. Avoid direct line of sight to the skylight diffuser.

Exceptions for areas where tasks would be hindered by the use of daylight will be considered on their merits.

Ceiling A

bove This L

ine H

2H


79

Hx0.7

H

35° 35°

Permanent Partition

Daylit Area

or

oPtioN 3. MeasurementDemonstrate through records of indoor light measurements that a minimum daylight illumination level of 25 fc has been achieved in at least 75% of all regularly occupied areas. Measurements must be taken on a 10-foot grid for all occupied spaces and recorded on building floor plans.

Only the square footage associated with the portions of rooms or spaces meeting the minimum illumination requirements may be counted in the calculations.

For all projects pursuing this option, provide daylight redirection and/or glare control devices to avoid high-contrast situations that could impede visual tasks. Exceptions for areas where tasks would be hindered by daylight will be considered on their merits.

or

oPtioN 4. CombinationAny of the above calculation methods may be combined to document the minimum daylight illumination in at least 75% of all regularly occupied spaces. The different methods used in each space must be clearly recorded on all building plans.

In all cases, only the square footage associated with the portions of rooms or spaces meeting the requirements may be applied toward the 75% of total area calculation required to qualify for this credit.

In all cases, provide glare control devices to avoid high-contrast situations that could impede visual tasks. Exceptions for areas where tasks would be hindered by the use of daylight will be considered on their merits.


80

potential technologies & StrategiesDesign the building to maximize interior daylighting. Strategies to consider include building orientation, shallow floor plates, increased building perimeter, exterior and interior permanent shading devices, high-performance glazing, and high-ceiling reflectance values; ly, additionally, automatic photocell-based controls can help to reduce energy use. Predict daylight factors via manual calculations or model daylighting strategies with a physical or computer model to assess footcandle levels and daylight factors achieved.


81

ieQ Credit 8.2: Daylight and Views—Views

1 point

intentTo provide building occupants a connection to the outdoors through the introduction of daylight and views into the regularly occupied areas of the building.

requirementsAchieve a direct line of sight to the outdoor environment via vision glazing between 30 inches and 90 inches above the finish floor for building occupants in 90% of all regularly occupied areas. Determine the area with a direct line of sight by totaling the regularly occupied square footage that meets the following criteria:

n In plan view, the area is within sight lines drawn from perimeter vision glazing.

n In section view, a direct sight line can be drawn from the area to perimeter vision glazing.

The line of sight may be drawn through interior glazing. For private offices, the entire square footage of the office may be counted if 75% or more of the area has a direct line of sight to perimeter vision glazing. For multi-occupant spaces, the actual square footage with a direct line of sight to perimeter vision glazing is counted.

potential technologies & StrategiesDesign the space to maximize daylighting and view opportunities. Strategies to consider include lower partitions, interior shading devices, interior glazing and automatic photocell-based controls.


82


83

iD Credit 1: innovation in Design

1–5 points

intentTo provide design teams and projects the opportunity to achieve exceptional performance above the requirements set by the LEED Green Building Rating System and/or innovative performance in Green Building categories not specifically addressed by the LEED Green Building Rating System.

requirementsCredit can be achieved through any combination of the Innovation in Design and Exemplary Performance paths as described below:

PatH 1. innovation in Design (1-5 points)Achieve significant, measurable environmental performance using a strategy not addressed in the LEED 2009 for New Construction and Major Renovations Rating System.

One point is awarded for each innovation achieved. No more than 5 points under IDc1 may be earned through PATH 1—Innovation in Design.

Identify the following in writing:

n The intent of the proposed innovation credit.

n The proposed requirement for compliance.

n The proposed submittals to demonstrate compliance.

n The design approach (strategies) used to meet the requirements.

PatH 2. Exemplary Performance (1-3 points)Achieve exemplary performance in an existing LEED 2009 for New Construction and Major Renovations prerequisite or credit that allows exemplary performance as specified in the LEED Reference Guide for Green Building Design & Construction, 2009 Edition. An exemplary performance point may be earned for achieving double the credit requirements and/or achieving the next incremental percentage threshold of an existing credit in LEED.

One point is awarded for each exemplary performance achieved. No more than 3 points under IDc1 may be earned through PATH 2— Exemplary Performance.

PatH 3. Pilot Credit (1 point)Attempt a pilot credit available in the Pilot Credit Library at www.usgbc.org/pilotcreditlibrary. Register as a pilot credit participant and complete the required documentation. Projects may pursue more than 1 pilot credit; however, a maximum of 1 point will be awarded.

potential technologies & StrategiesSubstantially exceed a LEED 2009 for New Construction and Major Renovations performance credit such as energy performance or water efficiency. Apply strategies or measures that demonstrate a comprehensive approach and quantifiable environment and/or health benefits.

www.usgbc.org/pilotcreditlibrary


84

iD Credit 2: leeD accredited professional

1 point

intentTo support and encourage the design integration required by LEED to streamline the application and certification process.

requirementsAt least 1 principal participant of the project team shall be a LEED Accredited Professional (AP).

potential technologies & StrategiesEducate the project team members about green building design and construction, the LEED requirements and application process early in the life of the project. Consider assigning integrated design and construction process facilitation to the LEED AP.


85

rp Credit 1: regional priority

1–4 points

intentTo provide an incentive for the achievement of credits that address geographically-specific environmental priorities.

requirementsEarn 1-4 of the 6 Regional Priority credits identified by the USGBC regional councils and chapters as having environmental importance for a project’s region. A database of Regional Priority credits and their geographic applicability is available on the USGBC website, http://www.usgbc.org.

One point is awarded for each Regional Priority credit achieved; no more than 4 credits identified as Regional Priority credits may be earned. Projects outside of the U.S. are not eligible for Regional Priority credits.

potential technologies & StrategiesDetermine and pursue the prioritized credits for the project location.

http://www.usgbc.org/

Appendix B Air Quality Data

Parenthetical URBEMIS2007 (Version 9.2.4) AssumptionsFor: Lakeport Courthouse

Date: July 2010

LAND USES

Amount Land Use Type Unit Type Trip Rate 50 Government office building 1,000 square feet 8.06

CONSTRUCTION SOURCES

Year Duration (months) Development2012 8 months Grading, Trenching, Paving, Building 2013 12 months Building, Coating 2014 1 month Building, Coating

Phase 1 - Grading:

Year Total Acreage Disturbed

AcreageDisturbed Daily

Duration-(days)

FugitiveDust

Soil Hauling (cubic yards)

EstimatedCut/Fill (cubic

yards)2012 5.74 2 20 Default

Grading Equipment (URBEMIS2007 Default):

Quantity Type Hours of Daily Operation 1 Grader 6 1 Rubber Tired Dozer 6 1 Tractor/Loaders/Backhoe 7 1 Water Trucks 8

Phase 2 - Trenching:

Year Duration2012 10 days

Trenching Equipment (URBEMIS2007 Default):

Quantity Type Hours of Daily Operation 2 Excavators 8 1 Other General Industrial

Equipment8

Phase 3 - Paving:

Year Duration(days) Acres

2012 10 5.74

Equipment (URBEMIS2007 Default):

Quantity Type Hours of Daily Operation 4 Cement and Mortar Mixers 6 1 Paver 7 2 Paving Equipment 6 1 Roller 7

Phase 4 – Building Construction

Duration:

20 months

Equipment (URBEMIS2007 Default):

Quantity Type Hours of Daily Operation 1 Crane 4 2 Forklifts 6 1 Tractor/Loader/Backhoe 8

Phase 5 – Architectural Coatings:

Duration – 1.5Months Low VOC coatings (Pursuant to SCAQMD Rule 1113) (URBEMIS2007 default all phases)

Sub- Phase 5 - Worker Commute

(URBEMIS2007 default all phases)

Construction Mitigation:

Refer to URBEMIS2007 file output.

YEAR 2013 AREA SOURCES

Natural Gas Fuel Combustion:


Hearth Fuel Combustion:

Off

Landscape Fuel Combustion:

Consumer Products:

Year of Completion Summer Days 2013 180


Architectural Coating:


Area Source Mitigation:

Low VOC coatings (Pursuant to SCAQMD Rule 1113) Refer to URBEMIS2007 file output.

YEAR 2013 OPERATIONAL SOURCES

Vehicle Fleet %:


Year:

Year of Completion – 2013

Trip Characteristics:

(URBEMIS2007 Default all phases)

Temperature Data:

40 to 90 degrees Fahrenheit

Variable Starts:


Road Dust:

Paved – 100% Unpaved – 0%

Pass By Trips (On/Off):

Off

Double-Counting(On/Off):

Off

Operational Mitigation Measures:

Refer to URBEMIS2007 file output.

ConstructionCO.txt 07/14/10 14:37:28 *** SCREEN3 MODEL RUN *** *** VERSION DATED 96043 ***

C:\Documents and Settings\KCHIENE\My Documents\Lakes\Screen View\ConstructionCO

SIMPLE TERRAIN INPUTS: SOURCE TYPE = AREA EMISSION RATE (G/(S-M**2)) = 0.281600E-05 SOURCE HEIGHT (M) = 3.0000 LENGTH OF LARGER SIDE (M) = 152.4100 LENGTH OF SMALLER SIDE (M) = 152.4100 RECEPTOR HEIGHT (M) = 1.5000 URBAN/RURAL OPTION = URBAN THE REGULATORY (DEFAULT) MIXING HEIGHT OPTION WAS SELECTED. THE REGULATORY (DEFAULT) ANEMOMETER HEIGHT OF 10.0 METERS WAS ENTERED.

MODEL ESTIMATES DIRECTION TO MAX CONCENTRATION

BUOY. FLUX = 0.000 M**4/S**3; MOM. FLUX = 0.000 M**4/S**2.

*** FULL METEOROLOGY ***

********************************** *** SCREEN AUTOMATED DISTANCES *** **********************************

*** TERRAIN HEIGHT OF 0. M ABOVE STACK BASE USED FOR FOLLOWING DISTANCES ***

DIST CONC U10M USTK MIX HT PLUME MAX DIR (M) (UG/M**3) STAB (M/S) (M/S) (M) HT (M) (DEG) ------- ---------- ---- ----- ----- ------ ------ ------- 1. 35.00 5 1.0 1.0 10000.0 3.00 45. 100. 53.96 5 1.0 1.0 10000.0 3.00 45. 200. 31.29 5 1.0 1.0 10000.0 3.00 45. 300. 19.29 5 1.0 1.0 10000.0 3.00 45. 400. 13.60 5 1.0 1.0 10000.0 3.00 45. 500. 10.25 5 1.0 1.0 10000.0 3.00 45. 600. 8.064 5 1.0 1.0 10000.0 3.00 45. 700. 6.547 5 1.0 1.0 10000.0 3.00 42. 800. 5.449 5 1.0 1.0 10000.0 3.00 45. 900. 4.627 5 1.0 1.0 10000.0 3.00 45. 1000. 3.995 5 1.0 1.0 10000.0 3.00 45.

MAXIMUM 1-HR CONCENTRATION AT OR BEYOND 1. M: 115. 56.05 5 1.0 1.0 10000.0 3.00 45.

*************************************** *** SUMMARY OF SCREEN MODEL RESULTS *** ***************************************

CALCULATION MAX CONC DIST TO TERRAIN PROCEDURE (UG/M**3) MAX (M) HT (M) -------------- ----------- ------- ------- SIMPLE TERRAIN 56.05 115. 0.

*************************************************** ** REMEMBER TO INCLUDE BACKGROUND CONCENTRATIONS ** ***************************************************

Page 1

07/14/10

15:09:59 *** SCREEN3 MODEL RUN *** *** VERSION DATED 96043 ***











CALCULATION MAX CONC DIST TO TERRAIN PROCEDURE (UG/M**3) MAX (M) HT (M) -------------- ----------- ------- -------

SIMPLE TERRAIN 98.96 115. 0.


07/14/10













Emfac.rtsTitle : Lake County Air Basin Subarea Winter CYr 2015 Default TitleVersion : Emfac2007 V2.3 Nov 1 2006Run Date : 2010/07/13 16:15:33Scen Year: 2015 -- All model years in the range 1971 to 2015 selectedSeason : WinterArea : Lake (LC)***************************************************************************************** Year: 2015 -- Model Years 1971 to 2015 Inclusive -- Winter Emfac2007 Emission Factors: V2.3 Nov 1 2006

Lake (LC) Lake (LC) Lake (LC)

Table 1: Running Exhaust Emissions (grams/mile)

Pollutant Name: Reactive Org Gases Temperature: 70F Relative Humidity: 0%

Speed MPH LDA LDT MDT HDT UBUS MCY ALL

5 0.408 0.646 0.643 3.992 6.115 4.746 0.721 35 0.073 0.125 0.117 0.481 0.971 1.910 0.141

Pollutant Name: Carbon Monoxide Temperature: 70F Relative Humidity: 0%


5 4.326 8.096 6.273 33.570 36.820 24.989 7.426 35 2.230 3.827 2.542 6.787 7.088 16.281 3.300

Pollutant Name: Oxides of Nitrogen Temperature: 70F Relative Humidity: 0%


5 0.462 0.967 1.580 12.910 14.236 1.338 1.233 35 0.266 0.548 0.946 6.434 8.101 1.305 0.686

Pollutant Name: Carbon Dioxide Temperature: 70F Relative Humidity: 0%


5 945.556 1161.349 1682.914 2611.395 2453.472 258.659 1167.527 35 308.007 384.654 519.841 1282.188 1660.838 134.622 395.307

Pollutant Name: Sulfur Dioxide Temperature: 70F Relative Humidity: 0%

Page 1

Emfac.rts


5 0.009 0.011 0.016 0.025 0.024 0.003 0.011 35 0.003 0.004 0.005 0.012 0.016 0.002 0.004

Pollutant Name: PM2.5 Temperature: 70F Relative Humidity: 0%


5 0.052 0.093 0.096 0.551 0.226 0.029 0.090 35 0.009 0.017 0.018 0.150 0.053 0.013 0.018

Pollutant Name: PM2.5 - Tire Wear Temperature: 70F Relative Humidity: 0%


5 0.002 0.002 0.002 0.005 0.002 0.001 0.002 35 0.002 0.002 0.002 0.005 0.002 0.001 0.002

Pollutant Name: PM2.5 - Brake Wear Temperature: 70F Relative Humidity: 0%


5 0.005 0.005 0.005 0.008 0.005 0.003 0.005 35 0.005 0.005 0.005 0.008 0.005 0.003 0.005

Pollutant Name: Gasoline - mi/gal Temperature: 70F Relative Humidity: 0%


5 9.286 7.380 4.903 3.339 3.300 28.296 8.219 35 28.445 22.589 16.900 16.898 16.741 53.231 24.931

Pollutant Name: Diesel - mi/gal Temperature: 70F Relative Humidity: 0%


5 28.298 29.070 19.538 4.688 4.175 0.000 15.502 35 28.298 29.070 19.538 6.114 4.175 0.000 16.105

Page 2

Emfac.rts

Title : Lake County Air Basin Subarea Winter CYr 2015 Default TitleVersion : Emfac2007 V2.3 Nov 1 2006Run Date : 2010/07/13 16:15:33Scen Year: 2015 -- All model years in the range 1971 to 2015 selectedSeason : WinterArea : Lake (LC)***************************************************************************************** Year: 2015 -- Model Years 1971 to 2015 Inclusive -- Winter Emfac2007 Emission Factors: V2.3 Nov 1 2006


Table 2: Starting Emissions (grams/trip)

Pollutant Name: Reactive Org Gases Temperature: 70F Relative Humidity:ALL

Time min LDA LDT MDT HDT UBUS MCY ALL

5 0.070 0.123 0.115 1.057 0.284 0.851 0.164 10 0.124 0.207 0.207 1.329 0.553 0.968 0.249 20 0.225 0.362 0.379 1.848 1.049 1.202 0.409 30 0.316 0.503 0.536 2.335 1.487 1.435 0.555 40 0.397 0.629 0.679 2.789 1.868 1.667 0.687 50 0.469 0.739 0.808 3.211 2.191 1.898 0.805 60 0.529 0.830 0.920 3.523 2.456 2.055 0.901 120 0.669 1.000 1.232 3.673 2.704 2.234 1.086 180 0.664 1.008 1.254 3.924 2.869 2.303 1.106 240 0.703 1.067 1.330 4.170 3.029 2.457 1.172 300 0.741 1.125 1.404 4.410 3.183 2.609 1.237 360 0.778 1.181 1.477 4.646 3.333 2.758 1.301 420 0.814 1.236 1.549 4.876 3.477 2.905 1.363 480 0.850 1.289 1.619 5.101 3.616 3.049 1.423 540 0.884 1.341 1.688 5.320 3.750 3.192 1.482 600 0.917 1.391 1.756 5.535 3.878 3.331 1.540 660 0.950 1.440 1.822 5.744 4.001 3.469 1.596 720 0.982 1.487 1.887 5.948 4.119 3.604 1.651

Pollutant Name: Carbon Monoxide Temperature: 70F Relative Humidity:ALL


5 0.716 1.359 1.256 10.818 4.255 3.756 1.651 10 1.304 2.372 2.292 14.218 8.338 4.086 2.629 20 2.419 4.285 4.259 20.667 15.984 4.741 4.484 30 3.451 6.049 6.087 26.647 22.938 5.392 6.200 40 4.401 7.664 7.778 32.159 29.201 6.037 7.779 50 5.268 9.129 9.330 37.204 34.773 6.677 9.220 60 6.052 10.445 10.744 41.781 39.652 7.312 10.524 120 8.420 13.774 14.635 48.918 45.483 10.593 13.810

Page 3

Emfac.rts 180 7.976 13.337 14.422 52.757 46.812 10.954 13.652 240 8.433 14.039 15.330 56.370 48.186 12.244 14.468 300 8.856 14.697 16.161 59.757 49.603 13.415 15.227 360 9.245 15.313 16.913 62.919 51.064 14.468 15.928 420 9.599 15.886 17.587 65.854 52.569 15.401 16.572 480 9.919 16.417 18.182 68.563 54.118 16.215 17.159 540 10.205 16.904 18.700 71.047 55.710 16.911 17.689 600 10.456 17.349 19.139 73.304 57.347 17.488 18.161 660 10.672 17.751 19.500 75.336 59.027 17.946 18.576 720 10.854 18.110 19.782 77.141 60.751 18.285 18.934

Pollutant Name: Oxides of Nitrogen Temperature: 70F Relative Humidity:ALL


5 0.251 0.391 1.005 0.963 1.261 0.175 0.480 10 0.288 0.456 1.123 1.412 1.900 0.210 0.565 20 0.354 0.572 1.332 2.202 3.022 0.271 0.715 30 0.408 0.667 1.506 2.847 3.936 0.322 0.838 40 0.451 0.743 1.646 3.346 4.643 0.362 0.936 50 0.483 0.798 1.751 3.699 5.142 0.393 1.008 60 0.504 0.834 1.821 3.907 5.433 0.413 1.053 120 0.529 0.872 1.932 3.936 5.472 0.416 1.099 180 0.531 0.874 1.932 3.919 5.452 0.410 1.099 240 0.527 0.868 1.918 3.893 5.421 0.402 1.091 300 0.522 0.858 1.897 3.858 5.380 0.392 1.080 360 0.514 0.846 1.868 3.815 5.328 0.380 1.064 420 0.504 0.830 1.831 3.763 5.266 0.366 1.045 480 0.493 0.811 1.787 3.703 5.192 0.350 1.022 540 0.479 0.790 1.735 3.635 5.109 0.331 0.995 600 0.464 0.765 1.675 3.557 5.014 0.311 0.965 660 0.446 0.737 1.608 3.472 4.909 0.288 0.930 720 0.427 0.706 1.533 3.377 4.793 0.264 0.892

Pollutant Name: Carbon Dioxide Temperature: 70F Relative Humidity:ALL


5 11.158 13.136 19.045 17.345 3.753 17.843 13.809 10 13.297 16.067 22.635 21.839 7.485 20.201 16.647 20 17.960 22.319 30.485 30.700 14.887 24.816 22.728 30 23.135 29.093 39.228 39.394 22.206 29.297 29.348 40 28.822 36.387 48.865 47.920 29.442 33.644 36.506 50 35.022 44.203 59.394 56.279 36.595 37.857 44.203 60 41.734 52.539 70.816 64.470 43.665 41.935 52.438 120 89.824 108.706 153.282 100.658 74.266 60.475 108.813 180 102.636 124.412 175.141 112.595 87.740 63.818 124.192 240 115.241 139.770 196.663 123.830 100.419 66.965 139.259 300 127.639 154.779 217.849 134.361 112.302 69.917 154.016 360 139.831 169.440 238.698 144.190 123.390 72.674 168.461 420 151.816 183.753 259.211 153.315 133.683 75.236 182.595 480 163.595 197.717 279.387 161.738 143.180 77.602 196.419 540 175.167 211.334 299.227 169.458 151.883 79.772 209.931 600 186.532 224.602 318.730 176.475 159.790 81.748 223.132 660 197.690 237.522 337.896 182.788 166.901 83.528 236.022

Page 4

Emfac.rts 720 208.642 250.093 356.726 188.399 173.218 85.113 248.601

Pollutant Name: Sulfur Dioxide Temperature: 70F Relative Humidity:ALL


5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 10 0.000 0.000 0.000 0.000 0.000 0.000 0.000 20 0.000 0.000 0.000 0.001 0.000 0.000 0.000 30 0.000 0.000 0.000 0.001 0.001 0.000 0.000 40 0.000 0.000 0.001 0.001 0.001 0.000 0.000 50 0.000 0.001 0.001 0.001 0.001 0.001 0.001 60 0.001 0.001 0.001 0.001 0.001 0.001 0.001 120 0.001 0.001 0.002 0.002 0.001 0.001 0.001 180 0.001 0.001 0.002 0.002 0.002 0.001 0.001 240 0.001 0.002 0.002 0.002 0.002 0.001 0.002 300 0.001 0.002 0.002 0.002 0.002 0.001 0.002 360 0.002 0.002 0.003 0.002 0.002 0.001 0.002 420 0.002 0.002 0.003 0.003 0.002 0.001 0.002 480 0.002 0.002 0.003 0.003 0.002 0.001 0.002 540 0.002 0.002 0.003 0.003 0.002 0.001 0.002 600 0.002 0.002 0.003 0.003 0.003 0.001 0.002 660 0.002 0.003 0.004 0.003 0.003 0.001 0.003 720 0.002 0.003 0.004 0.003 0.003 0.001 0.003

Pollutant Name: PM2.5 Temperature: 70F Relative Humidity:ALL


5 0.001 0.001 0.001 0.001 0.001 0.007 0.001 10 0.001 0.002 0.002 0.002 0.001 0.007 0.002 20 0.003 0.005 0.003 0.002 0.002 0.005 0.003 30 0.004 0.007 0.004 0.003 0.003 0.004 0.005 40 0.005 0.009 0.005 0.004 0.004 0.003 0.006 50 0.006 0.010 0.007 0.004 0.005 0.003 0.008 60 0.007 0.012 0.008 0.005 0.005 0.003 0.009 120 0.010 0.018 0.012 0.007 0.007 0.006 0.013 180 0.011 0.019 0.013 0.007 0.007 0.008 0.014 240 0.012 0.021 0.013 0.008 0.007 0.011 0.015 300 0.013 0.022 0.014 0.008 0.008 0.013 0.016 360 0.013 0.023 0.015 0.009 0.008 0.015 0.017 420 0.014 0.024 0.015 0.009 0.008 0.016 0.018 480 0.014 0.025 0.016 0.009 0.008 0.018 0.018 540 0.015 0.026 0.016 0.010 0.009 0.019 0.019 600 0.015 0.026 0.017 0.010 0.009 0.019 0.019 660 0.015 0.027 0.017 0.010 0.009 0.020 0.020 720 0.015 0.027 0.017 0.010 0.009 0.020 0.020

Title : Lake County Air Basin Subarea Winter CYr 2015 Default TitlePage 5

Emfac.rtsVersion : Emfac2007 V2.3 Nov 1 2006Run Date : 2010/07/13 16:15:33Scen Year: 2015 -- All model years in the range 1971 to 2015 selectedSeason : WinterArea : Lake (LC)***************************************************************************************** Year: 2015 -- Model Years 1971 to 2015 Inclusive -- Winter Emfac2007 Emission Factors: V2.3 Nov 1 2006


Table 4: Hot Soak Emissions (grams/trip)



5 0.136 0.183 0.058 0.067 0.088 0.203 0.137 10 0.252 0.340 0.108 0.123 0.163 0.379 0.254 20 0.431 0.582 0.185 0.211 0.278 0.662 0.436 30 0.556 0.753 0.240 0.272 0.359 0.872 0.563 40 0.603 0.818 0.261 0.295 0.389 0.956 0.612

Hot soak results are scaled to reflect zero emissions for trip lengths of less than 5 minutes (about 25% of in-use trips).



Table 5a: Partial Day Diurnal Loss Emissions (grams/hour)

Pollutant Name: Reactive Org Gases Temperature: ALL Relative Humidity:ALL

Temp degF LDA LDT MDT HDT UBUS MCY ALL

70 0.218 0.327 0.113 0.029 0.005 0.452 0.260

Page 6

Emfac.rts



Table 5b: Multi-Day Diurnal Loss Emissions (grams/hour)



70 0.018 0.025 0.009 0.001 0.002 0.041 0.021



Table 6a: Partial Day Resting Loss Emissions (grams/hour)



70 0.083 0.129 0.048 0.013 0.002 0.142 0.100

Page 7

Emfac.rts



Table 6b: Multi-Day Resting Loss Emissions (grams/hour)



70 0.007 0.010 0.004 0.001 0.001 0.014 0.008



Table 7: Estimated Travel Fractions

Pollutant Name: Temperature: ALL Relative Humidity:ALL

LDA LDT MDT HDT UBUS MCY ALL

%VMT 0.412 0.424 0.116 0.032 0.001 0.015 1.000 %TRIP 0.363 0.383 0.184 0.053 0.000 0.017 1.000 %VEH 0.389 0.423 0.095 0.037 0.000 0.056 1.000

Page 8

Emfac.rts



Table 8: Evaporative Running Loss Emissions (grams/minute)



1 0.030 0.942 0.499 1.233 0.716 0.024 0.510 2 0.031 0.493 0.262 0.655 0.373 0.062 0.275 3 0.034 0.347 0.185 0.464 0.260 0.083 0.199 4 0.038 0.276 0.148 0.369 0.205 0.096 0.163 5 0.041 0.234 0.127 0.313 0.172 0.105 0.143 10 0.050 0.156 0.087 0.203 0.109 0.132 0.106 15 0.056 0.137 0.078 0.170 0.091 0.149 0.098 20 0.061 0.134 0.077 0.156 0.085 0.163 0.099 25 0.066 0.138 0.080 0.150 0.084 0.176 0.102 30 0.069 0.145 0.084 0.156 0.088 0.184 0.107 35 0.071 0.151 0.087 0.161 0.091 0.193 0.111 40 0.073 0.157 0.091 0.167 0.095 0.201 0.116 45 0.075 0.163 0.094 0.172 0.098 0.209 0.120 50 0.077 0.168 0.097 0.177 0.101 0.215 0.123 55 0.078 0.174 0.100 0.182 0.104 0.221 0.126 60 0.079 0.179 0.103 0.187 0.107 0.227 0.130

Page 9

Bevins-Lakeport.lst1 CALINE4 - (DATED CALINE4x)

3.0.0 PC (32 BIT) VERSION (C) COPYRIGHT 2000, TRINITY CONSULTANTS

Run Began on 7/13/2010 at 16:30:35

CALINE4: CALIFORNIA LINE SOURCE DISPERSION MODEL JUNE 1989 VERSION PAGE 1

JOB: Bevins-Lakeport RUN: Hour 1 (WORST CASE ANGLE) POLLUTANT: Carbon Monoxide

I. SITE VARIABLES

U= 0.5 M/S Z0= 100. CM ALT= 0. (M) BRG= WORST CASE VD= 0.0 CM/S CLAS= 6 (F) VS= 0.0 CM/S MIXH= 1000. M AMB= 3.5 PPM SIGTH= 5. DEGREES TEMP= 15.0 DEGREE (C)

II. LINK VARIABLES

LINK * LINK COORDINATES (M) * EF H W DESCRIPTION * X1 Y1 X2 Y2 * TYPE VPH (G/MI) (M) (M) ----------------*-------------------------*------------------------------ 1. Y SB1 * 684 1256 711 1201 * AG 262 3.3 0.0 23.3 2. Y SB2 * 711 1201 745 1133 * AG 220 7.4 0.0 23.3 3. Y SB3 * 745 1133 800 1025 * AG 226 3.3 0.0 23.3 4. Y SB4 * 800 1025 858 906 * AG 226 3.3 0.0 23.3 5. Y NB1 * 868 911 813 1024 * AG 30 3.3 0.0 23.3 6. Y NB2 * 814 1024 761 1138 * AG 13 3.3 0.0 23.3 7. Y NB3 * 761 1138 728 1205 * AG 286 3.3 0.0 23.3 8. Y NB4 * 728 1205 700 1263 * AG 286 3.3 0.0 23.3 9. Y LT1 * 720 1198 753 1134 * AG 42 7.4 0.0 23.3 10. Y LT2 * 753 1134 802 1038 * AG 17 7.4 0.0 23.3 11. X EB1 * 596 1103 682 1125 * AG 1013 3.3 0.0 24.1 12. X EB2 * 682 1125 750 1141 * AG 740 7.4 0.0 24.1 13. X EB3 * 750 1141 826 1158 * AG 782 3.3 0.0 24.1 14. X EB4 * 826 1158 923 1182 * AG 782 3.3 0.0 24.1 15. X WB1 * 924 1170 832 1147 * AG 385 3.3 0.0 24.1 16. X WB2 * 832 1147 757 1128 * AG 379 7.4 0.0 24.1 17. X WB3 * 757 1128 687 1111 * AG 396 3.3 0.0 24.1 18. X WB4 * 687 1111 599 1090 * AG 396 3.3 0.0 24.1 19. X LT1 * 674 1115 753 1134 * AG 273 7.4 0.0 24.1 20. X LT2 * 753 1134 841 1157 * AG 6 7.4 0.0 24.1

III. RECEPTOR LOCATIONS

* COORDINATES (M) RECEPTOR * X Y Z ------------*--------------------- 1. Recpt 1 * 805 1099 1.8 2. Recpt 2 * 691 1157 1.8 3. Recpt 3 * 729 1093 1.8 4. Recpt 4 * 778 1179 1.8

Page 1

Bevins-Lakeport.lst

IV. MODEL RESULTS (WORST CASE WIND ANGLE )

* * PRED * CONC/LINK * BRG * CONC * (PPM) RECEPTOR * (DEG) * (PPM) * 1 2 3 4 5 6 7 8 -------------*-------*-------*---------------------------------------- 1. Recpt 1 * 289. * 3.8 * 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2. Recpt 2 * 110. * 3.9 * 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3. Recpt 3 * 359. * 3.9 * 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 4. Recpt 4 * 234. * 4.0 * 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

* CONC/LINK * (PPM) RECEPTOR * 9 10 11 12 13 14 15 16 ------------*---------------------------------------- 1. Recpt 1 * 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.0 2. Recpt 2 * 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.1 3. Recpt 3 * 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.0 4. Recpt 4 * 0.0 0.0 0.0 0.2 0.0 0.0 0.0 0.0

*CONC/LINK *(PPM) RECEPTOR * 17 18 19 20 ------------*-------------------------------------------------- 1. Recpt 1 * 0.0 0.0 0.1 0.0 2. Recpt 2 * 0.0 0.0 0.0 0.0 3. Recpt 3 * 0.0 0.0 0.1 0.0 4. Recpt 4 * 0.0 0.0 0.1 0.0

1

Run Ended on 7/13/2010 at 16:30:35

Page 2

Main-Lakeport.lst1 CALINE4 - (DATED CALINE4x)


Run Began on 7/13/2010 at 16:34:29


JOB: Main-Lakeport RUN: Hour 1 (WORST CASE ANGLE) POLLUTANT: Carbon Monoxide

I. SITE VARIABLES


II. LINK VARIABLES

LINK * LINK COORDINATES (M) * EF H W DESCRIPTION * X1 Y1 X2 Y2 * TYPE VPH (G/MI) (M) (M) ----------------*-------------------------*------------------------------ 1. Y SB1 * 684 1256 711 1201 * AG 683 3.3 0.0 20.3 2. Y SB2 * 711 1201 745 1133 * AG 647 7.4 0.0 20.3 3. Y SB3 * 745 1133 800 1025 * AG 647 3.3 0.0 20.3 4. Y SB4 * 800 1025 858 906 * AG 647 3.3 0.0 20.3 5. Y NB1 * 868 911 813 1024 * AG 384 3.3 0.0 20.3 6. Y NB2 * 814 1024 761 1138 * AG 311 3.3 0.0 20.3 7. Y NB3 * 761 1138 728 1205 * AG 714 3.3 0.0 20.3 8. Y NB4 * 728 1205 700 1263 * AG 714 3.3 0.0 20.3 9. Y LT1 * 720 1198 753 1134 * AG 36 7.4 0.0 20.3 10. Y LT2 * 753 1134 802 1038 * AG 73 7.4 0.0 20.3 11. X EB1 * 596 1103 682 1125 * AG 521 3.3 0.0 16.2 12. X EB2 * 682 1125 750 1141 * AG 118 7.4 0.0 16.2 13. X EB3 * 750 1141 826 1158 * AG 154 3.3 0.0 16.2 14. X EB4 * 826 1158 923 1182 * AG 154 3.3 0.0 16.2 15. X WB1 * 924 1170 832 1147 * AG 3 3.3 0.0 16.2 16. X WB2 * 832 1147 757 1128 * AG 3 7.4 0.0 16.2 17. X WB3 * 757 1128 687 1111 * AG 76 3.3 0.0 16.2 18. X WB4 * 687 1111 599 1090 * AG 76 3.3 0.0 16.2 19. X LT1 * 674 1115 753 1134 * AG 403 7.4 0.0 16.2 20. X LT2 * 753 1134 841 1157 * AG 0 7.4 0.0 16.2


* COORDINATES (M) RECEPTOR * X Y Z ------------*--------------------- 1. Recpt 1 * 805 1099 1.8 2. Recpt 2 * 691 1157 1.8 3. Recpt 3 * 729 1093 1.8 4. Recpt 4 * 778 1179 1.8

Page 1

Main-Lakeport.lst


* * PRED * CONC/LINK * BRG * CONC * (PPM) RECEPTOR * (DEG) * (PPM) * 1 2 3 4 5 6 7 8 -------------*-------*-------*---------------------------------------- 1. Recpt 1 * 314. * 3.8 * 0.0 0.2 0.0 0.0 0.0 0.0 0.1 0.0 2. Recpt 2 * 139. * 3.8 * 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 3. Recpt 3 * 357. * 3.9 * 0.0 0.2 0.0 0.0 0.0 0.0 0.0 0.1 4. Recpt 4 * 232. * 3.9 * 0.0 0.1 0.0 0.0 0.0 0.0 0.1 0.0

* CONC/LINK * (PPM) RECEPTOR * 9 10 11 12 13 14 15 16 ------------*---------------------------------------- 1. Recpt 1 * 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2. Recpt 2 * 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3. Recpt 3 * 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4. Recpt 4 * 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

*CONC/LINK *(PPM) RECEPTOR * 17 18 19 20 ------------*-------------------------------------------------- 1. Recpt 1 * 0.0 0.0 0.0 0.0 2. Recpt 2 * 0.0 0.0 0.1 0.0 3. Recpt 3 * 0.0 0.0 0.1 0.0 4. Recpt 4 * 0.0 0.0 0.1 0.0

1

Run Ended on 7/13/2010 at 16:34:29

Page 2

sr29nbramp-lake.lst1 CALINE4 - (DATED CALINE4x)


Run Began on 7/13/2010 at 16:27:29


JOB: SR29 NB Ramp-Lakeport Blvd RUN: Hour 1 (WORST CASE ANGLE) POLLUTANT: Carbon Monoxide

I. SITE VARIABLES


II. LINK VARIABLES

LINK * LINK COORDINATES (M) * EF H W DESCRIPTION * X1 Y1 X2 Y2 * TYPE VPH (G/MI) (M) (M) ----------------*-------------------------*------------------------------ 1. Link A * 6284 -181 6284 -246 * AG 388 3.3 0.0 19.1 2. Link B * 6284 -246 6284 -300 * AG 388 7.4 0.0 19.1 3. Link C * 6284 -300 6279 -453 * AG 572 3.3 0.0 19.1 4. Link D * 6297 -460 6298 -378 * AG 769 3.3 0.0 19.1 5. Link E * 6298 -378 6298 -319 * AG 769 3.3 0.0 19.1 6. Link F * 6298 -319 6297 -176 * AG 769 3.3 0.0 19.1 7. Link G * 6284 -265 6300 -314 * AG 0 7.4 0.0 19.1 8. Link H * 6300 -314 6462 -325 * AG 0 3.3 0.0 23.7 9. Link I * 6523 -313 6380 -311 * AG 635 3.3 0.0 23.7 10. Link J * 6380 -311 6298 -301 * AG 451 7.4 0.0 23.7 11. Link K * 6370 -310 6284 -326 * AG 184 7.4 0.0 23.7


* COORDINATES (M) RECEPTOR * X Y Z ------------*--------------------- 1. Recpt 1 * 6325 -280 1.7 2. Recpt 2 * 6315 -339 1.7 3. Recpt 3 * 6243 -327 1.7 4. Recpt 4 * 6246 -277 1.7


* * PRED * CONC/LINK * BRG * CONC * (PPM) RECEPTOR * (DEG) * (PPM) * 1 2 3 4 5 6 7 8 -------------*-------*-------*---------------------------------------- 1. Recpt 1 * 199. * 3.9 * 0.0 0.0 0.1 0.0 0.1 0.0 0.0 0.0

Page 1

sr29nbramp-lake.lst 2. Recpt 2 * 344. * 4.0 * 0.0 0.1 0.0 0.0 0.0 0.2 0.0 0.0 3. Recpt 3 * 83. * 3.9 * 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 4. Recpt 4 * 105. * 3.9 * 0.0 0.1 0.0 0.0 0.0 0.1 0.0 0.0

*CONC/LINK *(PPM) RECEPTOR * 9 10 11 ------------*-------------------------------------------------- 1. Recpt 1 * 0.0 0.1 0.0 2. Recpt 2 * 0.0 0.1 0.1 3. Recpt 3 * 0.1 0.1 0.1 4. Recpt 4 * 0.0 0.2 0.0

1

Run Ended on 7/13/2010 at 16:27:29

Page 2

sr29sbramp-lake.lst1 CALINE4 - (DATED CALINE4x)


Run Began on 7/13/2010 at 16:25:31


JOB: SR29 SB Ramp-Lakeport Blvd RUN: Hour 1 (WORST CASE ANGLE) POLLUTANT: Carbon Monoxide

I. SITE VARIABLES


II. LINK VARIABLES

LINK * LINK COORDINATES (M) * EF H W DESCRIPTION * X1 Y1 X2 Y2 * TYPE VPH (G/MI) (M) (M) ----------------*-------------------------*------------------------------ 1. Link A * 6284 -181 6284 -246 * AG 572 3.3 0.0 17.0 2. Link B * 6284 -246 6284 -300 * AG 391 7.4 0.0 17.0 3. Link C * 6284 -300 6279 -453 * AG 391 3.3 0.0 17.0 4. Link D * 6297 -460 6298 -378 * AG 456 3.3 0.0 17.0 5. Link E * 6298 -378 6298 -319 * AG 456 3.3 0.0 17.0 6. Link F * 6298 -319 6297 -176 * AG 456 3.3 0.0 17.0 7. Link G * 6284 -265 6300 -314 * AG 181 7.4 0.0 17.0 8. Link H * 6300 -314 6462 -325 * AG 181 3.3 0.0 18.4 9. Link I * 6523 -313 6380 -311 * AG 0 3.3 0.0 18.4 10. Link J * 6380 -311 6298 -301 * AG 0 7.4 0.0 18.4 11. Link K * 6370 -310 6284 -326 * AG 0 7.4 0.0 18.4


* COORDINATES (M) RECEPTOR * X Y Z ------------*--------------------- 1. Recpt 1 * 6325 -280 1.7 2. Recpt 2 * 6315 -339 1.7 3. Recpt 3 * 6243 -327 1.7 4. Recpt 4 * 6246 -277 1.7


* * PRED * CONC/LINK * BRG * CONC * (PPM) RECEPTOR * (DEG) * (PPM) * 1 2 3 4 5 6 7 8 -------------*-------*-------*---------------------------------------- 1. Recpt 1 * 253. * 3.7 * 0.0 0.1 0.0 0.0 0.0 0.1 0.0 0.0

Page 1

sr29sbramp-lake.lst 2. Recpt 2 * 338. * 3.9 * 0.0 0.1 0.0 0.0 0.0 0.1 0.1 0.0 3. Recpt 3 * 40. * 3.7 * 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0 4. Recpt 4 * 108. * 3.7 * 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0

*CONC/LINK *(PPM) RECEPTOR * 9 10 11 ------------*-------------------------------------------------- 1. Recpt 1 * 0.0 0.0 0.0 2. Recpt 2 * 0.0 0.0 0.0 3. Recpt 3 * 0.0 0.0 0.0 4. Recpt 4 * 0.0 0.0 0.0

1

Run Ended on 7/13/2010 at 16:25:31

Page 2

Appendix C Biological Resources Documentation

Biological Study Report

Lake County Courthouse675 Lakeport Boulevard, Lakeport, CA

Prepared for:

RBF Consulting500-01

July 15, 2010

Prepared by:

500-01 Lake County Courthouse BSR ENPLANi

TABLE OF CONTENTS

1. INTRODUCTION ....................................................................................................... 1

2. METHODOLOGY AND STAFF QUALIFICATIONS................................................... 2

3. RESULTS ................................................................................................................. 4

Plant Communities/Wildlife Habitats .......................................................................... 4

Special-Status Plant Species..................................................................................... 7

Special-Status Animal Species ............................................................................... 10

Nesting Migratory Birds ........................................................................................... 11

Resource-Agency Permits ...................................................................................... 11

4. CONCLUSIONS AND RECOMMENDATIONS ....................................................... 13

5. REFERENCES CITED ............................................................................................ 15

APPENDICES

Appendix A. Figures

Appendix B. Site Photographs

Appendix C. Wildlife Habitat Relationships Report Summary

Appendix D Rarefind (CNDDB) Report Summary

Appendix E. Evaluation of the Potential for Special-Status Species or Other Species Identified by the CNDDB to Occur on the Site

Appendix F. Checklist of Vascular Plant Species Observed

Appendix G. Checklist of Wildlife Species Observed

500-01 Lake County Courthouse BSR ENPLAN1

1. INTRODUCTIONThe purpose of this biological study report is to identify and characterize sensitive

natural communities and plant and wildlife resources that are known or expected to

occur on a ±5.8-acre project site at 675 Lakeport Boulevard, in the City of Lakeport,

Lake County. The site, identified as Lake County -521-

410, is being evaluated for potential construction of a new courthouse. As shown in

Figure 1 of Appendix A, the site is located in near the center of Section 25, Township 14

North, Range 10 Lakeport 7.5-minute

quadrangle. Photographs of the site are provided in Appendix B.


2. METHODOLOGY AND STAFF QUALIFICATIONSPrior to conducting fieldwork, a biological records search was completed. This

consisted of reviewing the California Department of Fish and Game's California Natural

Diversity Data Base (CNDDB) as well as available local records. The CNDDB records

search covered a 10-mile radius around the site. This entailed review of records for

portions of the following quadrangles: Cow Mountain, Upper Lake, Bartlett Mountain,

Oaks, Hopland, Highland Springs,

Kelseyville, and Clearlake Highlands. Available local records consisted of a biological

study report and wetland delineation (Northwest Biosurvey, 2006) prepared for a site

approximately 0.3 miles to the north of the subject site on Martin Street, and an Initial

Study for the same site (City of Lakeport, 2010). The Martin Street site has physical

and biological characteristics similar to the subject site, supports several of the same

special-status plant species, and was used as a reference site to check the phenology

of local special-status plant species.

Upon completion of the pre-field review, a botanical field survey was undertaken

in general accordance with Protocols for Surveying and Evaluating Impacts to Special

Status Native Plant Populations and Natural Communities (DFG, 2009). Because of the

potential requirement for frontage improvements on Lakeport Boulevard, lands between

the subject parcel and the street were included in the biological study area. The

botanical survey was conducted on April 9 and 29, May 17, and June 19, 2010. All of

the special-status plant species potentially occurring in the study area would have been

evident at the time the fieldwork was conducted. The survey consisted of an intensive

and systematic evaluation of the site; the field survey effort included four to six hours of

field time during each of the four site visits.

The locations and approximate population numbers/densities of the identified

special-status plant populations were determined by gridding each population into a

number of small polygons and then estimating the number of plants in each polygon.

The wildlife evaluation was conducted in three phases. The first phase consisted

of the records search described above. Under the second phase, the habitats and

special habitat elements in the study area were determined through field

reconnaissance. A list of wildlife species that could potentially occur in the identified


Habitat Relationships (WHR)

System, Version 8.2 (DFG, 2008). This is a predictive system based on scientific

information regarding wildlife species and their known habitat relationships. It is useful

as a general pre-field screen and provides a somewhat broader view of special-status

species potentially occurring in the study area.

The wildlife survey was conducted on March 17, 2010. Many of the special-

status animal species potentially occurring in the study area would have been evident at

the time the fieldwork was conducted. The potential presence of species not readily

identifiable during the field surveys was determined on the basis of observed habitat

characteristics. The initial field effort included approximately three hours of field

observations; additional wildlife observations were made during the botanical field

survey visits.

The botanical field surveys were conducted by Donald Burk. Mr. Burk has a

Bachelor of Arts degree in Biological Sciences and a Master of Science degree in

Botany. He has over 25 years of experience in the design and implementation of

botanical field studies. He has previously conducted botanical surveys in Lakeport and

is familiar with flora of the region as well as state and federal statutes pertaining to

special-status species. The wildlife evaluation was conducted by Darrin Doyle. Mr.

Doyle has a Bachelor of Science degree in biology, and has 10 years of experience

conducting biological surveys in California. He is familiar with wildlife species of the

region and their habitat requirements.

California red-legged frog and vernal pool crustaceans.


3. RESULTSPlant Communities/Wildlife Habitats

The study site is situated between approximately 1,340 and 1,400 feet above sea

level, and is surrounded on three sides by urban development. The site was historically

an oak woodland, and was used for agriculture and grazing beginning in the late 1930s;

the site was cleared of trees and shrubs in the early 1970s, and was graded prior to

1988 (URS, 2009). Soils on the site are identified as Henneke-Montara-rock outcrop

complex, 15 to 50 percent slopes, with a negligible amount of Still loam, stratified

substratum, in the extreme northeast corner of the site (USDA, NRCS, 2009). The

Henneke-Montara complex consists of very deep, moderately well-drained soils formed

in alluvium from mixed rock types. However, grading activities dramatically altered the

soils and natural contours of the site. Roughly 20 feet of surface material was removed

from the upper portion of the site, resulting in two level terraces.

Small rocks of serpentine origin are exposed on the upper terrace and hillsides,

which support a serpentine herb community. The lower terrace supports a disturbed

annual grassland. These two communities are described in more detail below; locations

of the communities are shown on Figure 3 of Appendix A and photographs are provided

in Appendix B. Two small, shallow seasonal waters with rock substrates are present on

the upper terrace. Most runoff from the site enters constructed ditches that convey flow

to the east. Flow enters drain system, which discharges into Clear

Lake approximately ¼-mile east of the site.

Annual grassland

Annual grasslands are characterized by a sparse to dense cover of annual

Germination occurs with the onset of the fall rains; growth, flowering, and seed-set

occur from winter through spring. With a few exceptions, the plants are dead through

the summer-fall dry season, persisting as seeds. On the subject site, the annual

grassland community is best represented on the lower terrace of the site, on the eastern

edge of the study area. Common species in this community include wild oats, soft


chess, California meadow barley, cream sacs, winter vetch, Spanish lotus, and various

clovers. Although several special-status plant species were observed on the fringe of

the annual grassland community, the community itself is not considered unique or

sensitive.

High-quality annual grasslands are inhabited by a variety of wildlife species.

Common mammals include black-tailed jackrabbit, coyote, gophers, moles, and several

species of mice and voles. Snakes are often abundant in annual grasslands, feeding on

small rodents. Amphibians are relatively uncommon in annual grasslands; however,

species such as the western toad and Pacific treefrog may be locally abundant near

aquatic habitats. Annual grassland also provides nesting and foraging habitat for

certain migratory birds, including western meadowlarks, various sparrows, western

kingbirds, and horned larks. The WHR data base predicts that this habitat type may be

inhabited by 83 species of wildlife (Appendix C). However, because the onsite

grassland is a small, fragmented relic of the grassland that historically was interspersed

among the oak woodland, far fewer animal species are expected to be present. Overall,

the onsite grassland has low value to wildlife species.

Serpentine herb community

The onsite serpentine herb community generally consists of a sparse, low-

growing cover of annual and perennial forbs and grasses on the upper terrace and

hillsides. Serpentine soils have unique chemical properties that prohibit the growth of

many common plant species. A number of other plant species have evolved

mechanisms allowing them to survive on serpentine soils. The flora of serpentine sites

is thus unique and often supports plants of limited distribution, including a number of

endemic species. Plant species observed on the site include naked buckwheat, wicker

buckwheat, reflexed fescue, serpentine phacelia, fringed checkerbloom, bearded

. As discussed below,

four serpentine-adapted special-status plant species were also observed in this

community.

With the exception of crevices between boulders, the serpentine herb community

lacks sufficient cover objects for most animal species. Accordingly, this habitat type


supports relatively few species of wildlife. Ground squirrels, which are present in small

numbers on the site, create their own shelter by burrowing into hillsides or under large

boulders. A number of birds may forage in this habitat; gulls, ravens, and crows were

While the serpentine herb community does not provide tree-nesting habitat for birds,

ground-nesting species such as the killdeer could potentially nest on the site. Overall,

this habitat type has low value to wildlife species. No estimate on the number of

animals that may potentially utilize the serpentine herb community is available, as there

is no corresponding WHR habitat type for this community.

Site grading resulted in the creation of two very shallow depressions on the

western edge of the serpentine herb community. These depressions pond water to a

depth of two to three inches. Because of the underlying bedrock, the water ponds for

long duration. These features appear to be subject to U.S. Army Corps of Engineers

jurisdiction as non-

and southwest corners of the upper terrace and overflow enters small constructed

essentially unvegetated and provide minimal wildlife value. However, they do attract

some species, such as killdeer. A delineation of wetlands and other waters on the

subject site has been completed by ENPLAN and is presented in a separate report

(ENPLAN, 2010).

The serpentine herb community is considered to be a sensitive natural

community due to its somewhat restricted distribution and the high potential for endemic

plant species to be present. The onsite community has been highly disturbed by

grading. Although this has reduced the value of the site for some plant species, it has

r

special-status species. Loss of the serpentine herb community as a result of project

development is considered a significant adverse impact. Mitigation for this loss is best

considered in conjunction with impacts on the four special-status plant species, and is

addressed below.


Special-Status Plant SpeciesReview of CNDDB records showed that two special-status plant species, green

jewel-flower and mayacamas popcorn-flower, have been broadly mapped to include the

study area. Twenty-six other special-status plant species are known to occur within a

10-mile radius: -flowered fiddleneck,

Boggs Lake hedge-

ic snapdragon, eel-grass pondweed, glandular

moss, oval-leaved viburnum, Raiche

monardella, serpentine cryptantha, small-flowered calycadenia, small groundcone,

Sonoma canescent manzanita, two-carpellate western flax, and woolly meadowfoam

(Appendix D). The potential for each special-status plant species to utilize the study

area is evaluated in Appendix E.

The botanical survey confirmed the presence of four special-status plant species

on the project site: Colusa layia, bent-flowered fiddleneck, serpentine cryptantha, and

a special-status species not reported in the CNDDB records search).

The locations of the plant populations are shown in Figure 3 of Appendix A. A checklist

of vascular plant species observed during the botanical field surveys is provided in

Appendix F. Data forms documenting the special-status plant occurrences have been

submitted to the California Natural Diversity Data Base.

Colusa layia (Layia septentrionalis)

Colusa layia is an annual herb that occurs in oak woodlands, chaparral, valley

and foothill grasslands, and in sandy serpentinite. The species is not state or federally

listed, but is on CNPS List 1B.2 (Plants Rare, Threatened, or Endangered in California

and Elsewhere; Fairly Threatened in California). The species occurs between 300 and

3,600 feet in elevation. A total of 44 populations are reported in CNDDB records.

These populations occur in the North Coast Range and Sutter Buttes (Colusa, Glenn,

Lake, Mendocino, Napa, Sonoma, Sutter, Tehama, and Yolo counties). Reported

population sizes (available for only about 25 percent of the records) range mostly from

100 to 200 plants, with the largest reported population having about 2,000 plants. With


roughly 20,000 to 25,000 plants observed on the subject site, the onsite Colusa layia

population is by far the largest of those for which data is available. On the subject site,

the species is most abundant on hillsides within the serpentine herb community, with a

small number of plants present on the upper and lower terraces.

Bent-flowered fiddleneck (Amsinckia lunaris)

Bent-flowered fiddleneck occurs in cismontane woodlands, and valley and foothill

grassland. The species is not state or federally listed, but is on CNPS List 1B.2 (Plants

Rare, Threatened, or Endangered in California and Elsewhere; Fairly Threatened in

California). The species is reported between 50 and 1,500 feet in elevation. A total of

50 populations are reported in CNDDB records. Populations are known to occur in

Lake, Marin, Napa, Colusa, Contra Costa, Alameda, San Benito, Santa Clara, Santa

Cruz, Yolo, and San Mateo counties. Reported population sizes (available for only

about 35 percent of the records) range mostly from 10 to 300 plants. The largest

quantified population size estimate is 3,650 plants, although the plants are noted to be

. Approximately 500 bent-flowered fiddleneck plants were

observed on the subject site, primarily growing on hillsides within the serpentine herb

community.

Serpentine cryptantha (Cryptantha clevelandii ssp. dissita)

Serpentine cryptantha generally occurs on serpentine rock outcrops in chaparral

communities. The species is reported between 1,100 and 2,400 feet in elevation. The

species is not state or federally listed, but is on CNPS List 1B.1 (Plants Rare,

Threatened, or Endangered in California and Elsewhere; Seriously Threatened in

California). A total of 10 populations are reported in CNDDB records. Populations are

known to occur in Lake, Mendocino, Napa, and Sonoma counties. Six of the ten

populations were observed between 1902 and 1967, the remaining four populations

were observed between 1999 and 2003. No population size data is available.

Approximately 10,000 serpentine cryptantha plants were observed on the subject site.

Most of the plants occur within the serpentine herb community, on the upper terrace and

on the hillside just below the upper terrace.


Clarkia gracilis ssp. tracyi)

generally occurs on serpentine soils in chaparral communities.

The species is reported from 200 to 2,200 feet above sea level. The species is not

state or federally listed, but is on CNPS List 4.2 (Plants of Limited Distribution (A Watch

List); Fairly Threatened in California). Populations are known to occur in Colusa,

Humboldt, Lake, Mendocino, Napa, Trinity, and Tehama counties. Because of the

lower CNPS status, the CNDDB does not offer online data regarding the number of

recorded populations or population sizes. Nearly 10,000

observed on the site. All of these plants were growing on the periphery of the site, on

both undisturbed and highly disturbed soils.

As noted above, Colusa layia, serpentine cryptantha, and bent-flowered

fiddleneck are on the Californi B. Although not state or

federally listed, plants with this CNPS listing status are generally considered to qualify

as rare under Section 15380(d) of the California

Environmental Quality Act (CEQA) Guidelines and thus require consideration during

CEQA review. r

state listing, but may be locally significant. As such, potential impacts to this species

should also be evaluated during the CEQA process.

Because detailed site development plans have not yet been prepared, the extent

of impacts to the serpentine herb community and the four onsite special-status plant

species cannot be quantified. However, in general terms, site development has a high

potential to adversely affect these resources

the least sensitive of the plants, would be least affected because it primarily occurs on

the periphery of the site. Serpentine cryptantha, which is the most sensitive of the four

species on the site, is the most centrally located and would be the most difficult to avoid

during site development. Because all four of the special-status plant species have an

affinity for serpentine soils, mitigation for the loss of the plants would also provide at

least some mitigation for the loss of the serpentine herb community.

Department of Fish and Game staff were contacted following discovery of the

special-status plant populations. However, the DFG has not conducted a field review of


the site or provided guidance as to potential mitigation strategies. Because full

avoidance of the special-status plant populations and serpentine herb community does

not appear to be possible, we recommend that the project proponent prepare a

mitigation plan acceptable to DFG prior to project construction. Mitigation would likely

include avoidance of at least some of the onsite serpentine herb community and

associated special-status plant populations. Detailed mapping of the extent and

densities of the special-status plant communities prepared as part of the botanical study

(Figure 3 of Appendix A) will assist in preparing a site design that minimizes impacts to

the populations. We recommend that the mitigation plan be prepared as early as

possible, in conjunction with preparation of site design and development plans. Other

options for mitigation include preservation of other local populations of these special-

status plants, restoration of degraded populations on other sites in the area, and/or

creation or new populations.

Special-Status Animal SpeciesReview of CNDDB records showed that one special-status animal species,

American badger, has been broadly mapped as occurring within the study area. In

addition, eight other special-status animal species are known to occur within a 10-mile

radius: Clear Lake hitch, foothill yellow-legged frog, grasshopper sparrow, Pacific fisher,

-eared bat, tricolored blackbird, and western pond

turtle (Appendix D). The CNDDB records search also identified seven non-status

animal species within the search radius: Calasellus californicus sage sparrow,

blennosperma vernal pool andrenid bee, double-crested cormorant, great blue heron,

osprey, and silver-haired bat.

The potential for each special-status animal species to utilize the study area is

evaluated in Appendix E. No special-status animal species were observed in the study

area during the wildlife evaluation. However, as documented in Appendix E, two

special-status animal species, grasshopper sparrow -eared bat, as

well as the non-status silver-haired bat could potentially utilize the site as some point

during their life cycles. A checklist of wildlife species observed at the site is presented

in Appendix G.


The grasshopper sparrow, a migratory bird, has a low potential to nest in the

onsite annual grassland community. Potential adverse effects on nesting grasshopper

sparrows can be avoided through proper timing of vegetation removal (see Nesting

Migratory Birds below).

-eared bat and silver-haired bat could potentially forage on the

site. However, they are very unlikely to roost on the site, given the lack of suitable

roosting sites. Because suitable roosting habitat is much more available on other local

sites and similar or higher quality foraging habitat is widely available, site development

would have a negligible effect on these bat species; no mitigation is warranted.

Nesting Migratory BirdsAlthough no bird nests were observed in the study area during the field

inspections, it is possible that migratory birds, particularly ground-nesting species, could

nest on the study area in future years. The federal Migratory Bird Treaty Act requires

that nesting migratory birds not be adversely affected by human activities. To ensure

compliance with the Act, vegetation should be removed from the project area outside of

the nesting season. In the local area, most birds nest between March 1 and July 31.

Accordingly, the potential for adversely affecting nesting birds can be greatly minimized

by removing vegetation before March 1 or after July 31. If this is not possible, a nesting

survey should be conducted within two weeks prior to vegetation removal. If active

nests are present, work within 500 feet of the nest(s) should be postponed until the

young have fledged, unless a smaller nest buffer zone is authorized by the DFG.

Resource-Agency Permit RequirementsIf the Corps of Engineers confirms that the small depressions and constructed

ditches are waters subject to federal jurisdiction, a Department of the Army permit would

be required prior to fill of the features. As a condition of the Department of the Army

permit, issuance of a Water Quality Certification by the Regional Water Quality Control

Board would also be required. It is unlikely that a Streambed or Lakebed Alteration

Agreement would be required by the Department of Fish and Game; however, we

recommend this be confirmed through consultation with Department staff. As for any


project involving more than one acre of surface disturbance, a General Construction

Activity Storm Water Permit must be obtained from the State Water Resources Control

Board; this requires preparation and implementation of a Storm Water Pollution

Prevention Plan. Project implementation would also necessitate obtaining other permits

(e.g., encroachment permits, air quality permits), but these involve issues beyond the

scope of this document.


4. CONCLUSIONS AND RECOMENDATIONSIn summary, we find that the study area supports non-

a unique serpentine herb community, and four special-status plant

species: Colusa layia, serpentine cryptantha, bent-

clarkia. In addition, two special-status animal species (grasshopper sparrow and

-eared bat), the non-status silver-haired bat, and nesting migratory birds

could potentially utilize the site at some point during their life cycle.

Mitigation is not warranted for the bat species because they are unlikely to roost

on the site and foraging habitat is widely available. Mitigation is not warranted for

Tra

for the serpentine herb community and other three special-status plants is expected to

Implementation of the following measures would

reduce the remaining biological impacts to a level below that of significance.

1. Obtain Required Resource-Agency Permits. The project proponent shall obtain all necessary resource-agency permits prior to initiating any grading or construction activities w The required permits may include a Department of the Army Nationwide Permit from the U.S. Army Corps of Engineers, Water Quality Certification from the Regional Water Quality Control Board, andpossibly a Streambed Alteration Agreement from the California Department of Fish and Game.

2. Avoid/Minimize/Offset the Loss of the Serpentine Herb Community and Associated Special-Status Plants. The project proponent shall prepare a mitigation plan identifying specific impacts of the proposed courthouse project on the serpentine herb community, Colusa layia, serpentine cryptantha, and bent-flowered fiddleneck.The plan shall include measures to avoid and minimize impacts to these resources through careful site design and establishment of onsite avoidance areas. To the

If avoidance is not possible or does not provide sufficient mitigation, other mitigation measures shall be designated in the plan, including preservation of offsite serpentine habitats and special-status plant populations, restoration of degraded habitats on other local sites capable of supporting the sensitive resources, and/or creation of new habitats capable of supporting the sensitive resources. The mitigation plan shall be submitted to the California Department of Fish and Game for review, and must beapproved in writing by DFG prior to initiation of site construction activities.


3. Avoid Disturbance of Nesting Migratory Birds, Including Grasshopper Sparrow. If feasible, vegetation removal shall be conducted between August 1 and February 28. If vegetation removal must be conducted between March 1 and July 31, a nesting bird survey shall be conducted within two weeks prior to initiation of work; if active nests are present, work within 500 feet of the nest(s) shall be postponed until the young have fledged, unless a smaller nest buffer zone is authorized by the DFG.


5. REFERENCES CITEDCalifornia Department of Fish and Game. 2010. California Natural Diversity Data Base,

RareFind Printout, March 2010 Data.

_____. 2009. Protocols for Surveying and Evaluating Impacts to Special Status Native Plant Populations and Natural Communities. <http://nrm.dfg.ca.gov/documents/docviewer.aspx>

_____. 2008. California Interagency Wildlife Task Group. California Wildlife Habitat Relationships Systems, Version 8.2, personal computer version. Sacramento, California.

City of Lakeport. 2010. Mitigated Negative Declaration and Initial Environmental Study, Lakeport Pacific Associates. AR 10-03 / ARC 10-02 / ER 10-02.

ENPLAN. 2010. Pre-jurisdictional Delineation Report: Lake County Courthouse Site, 675 Lakeport Boulevard, Lakeport, California. Unpublished report on file with ENLAN.

Northwest Biosurvey. June 30, 2006. Biological Assessment with Botanical Survey and Wetland Delineation for the Scott Johnson Property, APN 025-431-35. <http://www.cityoflakeport.com/departments/docs.aspx>

URS Corporation. December 2009. Final Draft Phase I Environmental Site Assessment Report: Proposed New Lakeport Courthouse 675 Lakeport Boulevard Site. 675 Lakeport Boulevard, Lakeport CA 95453. Unpublished document on file with the Judicial Council of California, Administrative Office of the Courts.

U.S. Department of Agriculture, Natural Resources Conservation Service. 2009. Web Soil Survey, August 31, 2009 Map Data. <http://websoilsurvey.nrcs.usda.gov/app/.>

http://nrm.dfg.ca.gov/documents/docviewer.aspx

http://www.cityoflakeport.com/departments/docs.aspx

http://websoilsurvey.nrcs.usda

500-01 Lake County Courthouse BSR ENPLAN

Appendix AFigures

03.16.10

Figure 1Project Vicinity Map

Feature and boundary locations depicted are approximate only.

X 0 2,000Feet

Lake County, California

Site

Project Site

07.12.10

Figure 2Project APE and Area Surveyed


X 0 300Feet

Site

Project APE and Area Surveyed

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07.15.10

Special-Status Plant Population Locations and Density RepresentationFigure 3


X 0 70Feet

Special Status Plant Occurrences

Bent-Flowered Fiddleneck (Amsinckia lunaris)! Colusa Layia (Layia septentrionalis)! Serpentine Cryptantha (Cryptantha clevelandii var. dissita)

!

1 Dot ± 15 Plants

Tracy's Clarkia (Clarkia gracilis ssp. tracyi)

Study Area Boundary

!

Parcel Boundary


Appendix BSite Photographs

Site Photographs

500-01

Annual Grassland (front) and Serpentine Herb (back) Communities 3/17/10

Annual Grassland Community 6/17/10

500-01

Serpentine Herb Community on Upper Terrace 3/17/10

Serpentine Herb Community on Undisturbed Slope 6/17/10

500-01

Ponded Water on Upper Terrace 2/8/10

Constructed Drainage Ditch 4/29/10

500-01

Bent-flowered Fiddleneck 4/9/10

Colusa Layia 5/19/10

500-01

Serpentine Cryptantha 6/17/10

Serpentine Cryptantha on Hillside 6/17/10

500-01

Tracy's Clarkia 6/17/10

Tracy's Clarkia Habitat 6/17/10


Appendix CWildlife Habitat Relationships Report Summary

ID SPECIES NAME1 2 3 4 5 6 7 8 9 10 11 12 13 14

A007 California newt 7A043 Foothill yellow-legged frog 7 11 12A046 Bullfrog 14A071 California red-legged frog 2 7R004 Western pond turtle 7 11 12R036 Western skink 7 11R048 Ringneck snake 12R057 Gopher snake 7R059 California mountain kingsnake 7 12R061 Common garter snake 1 3 5 7B051 Great blue heron 13B052 Great egret 13B071 Snow goose 14B075 Canada goose 14B077 Green-winged teal 14B079 Mallard 14B080 Northern pintail 14B083 Cinnamon teal 14B084 Northern shoverler 14B085 Gadwall 14B086 Eurasian wigeon 14B087 American widgeon 14B094 Lesser scaup 14B110 Osprey 13B111 White-tailed kite 5B113 Bald eagle 3 5 13B114 Northern harrier 7B124 Ferruginous hawk 11B126 Golden eagle 5 11 13B129 Peregrine falcon 3 5 12 13B133 Ring-necked pheasant 14B134 Sooty grouse 7 14B138 Wild turkey 14B140 California quail 7 14B141 Mountain quail 14B149 American coot 14B255 Mourning dove 14B269 Burrowing owl 7 11B272 Long-eared owl 7B273 Short-eared owl 7B338 Purple martin 7B342 Bank swallow 4B353 American crow 14B410 Loggerhead shrike 1 7B461 Common yellowthroat 7B487 Rufous-crowned sparrow 7B499 Savannah sparrow 3 7B501 Grasshopper sparrow 7B505 Song sparrow 7

WHR SPECIES SUMMARY REPORT (VERSION 8.2)

STATUS

675 Lakeport Boulevard, Lakeport, CALake County Courthouse

S:\01-Jobs Active\500-01 RBF Consulting - Lake County Courthouse\1-Documents\675 Lakeport Blvd\BSR\Appendix C - WHR\WHR report - 675 Lakeport Blvd.xls

ID SPECIES NAME STATUS

B519 Red-winged blackbird 7B520 Tricolored blackbird 7B522 Yellow-headed blackbird 7M001 Virginia opossum 14M006 Ornate shrew 1 7M018 Broad-footed mole 7M023 Yuma myotis 11M026 Fringed myotis 11M033 Western red bat 7 12M037 Townsend's big-eared bat 7 11 12M038 Pallid bat 7 11 12M045 Brush rabbit 1 3 14M047 Desert cottontail 14M051 Black-tailed jackrabbit 7 14M087 San Joaquin pocket mouse 7 11M105 California kangaroo rat 7 11M112 American beaver 14M117 Deer mouse 7M134 California vole 1 3 7 11M146 Coyote 14M147 Red fox 4 12 14M149 Gray fox 14M151 Black bear 14M152 Ringtail 5M153 Raccoon 14M157 Long-tailed weasel 14M160 American badger 7 14M161 Western spotted skunk 7 14M162 Striped skunk 14M165 Mountain lion 7M166 Bobcat 14M176 Wild pig 14M177 Elk 14M181 Mule deer 14

Total Number of Species: 83STATUS KEY:

1 = Federal EndangeredHabitats Selected: 2 = Federal Threatened

Annual grassland 3 = California Endangered4 = Caifornia Threatened5 = Caifornia Fully Protected6 = California Protected7 = California Species of Special Concern8 = Federally - Proposed Endangered9 = Federally - Proposed Threatened10 = Federal Candidate11 = BLM Sensitive12 = USFS Sensitive13 = CDF Sensitive14 = Harvest



Appendix DRarefind (CNDDB) Report Summary


Rarefind (CNDDB) Report Summary (March 2010 Data)Lake County Courthouse

675 Lakeport Boulevard, Lakeport, CAListed Element Quadrangle1

Status2

CM UL BM PG LA LU CO HO HS KE CHAnimals

American badger SSCCalasellus californicus None

NoneBlennosperma vernal pool andrenid bee None

Clear Lake hitch SSCDouble-crested cormorant NoneFoothill yellow-legged frog SSCGrasshopper sparrow SSCGreat blue heron NoneOsprey NonePacific fisher FC, SSCSacramento perch SSCSilver-haired bat None

-eared bat SSCTricolored blackbird SSCWestern pond turtle SSC

PlantsAnthony Peak lupine 1B.3Beaked tracyina 1B.2Bent-flowered fiddleneck 1B.2Boggs Lake hedge-hyssop SE, 1B.2

1B.21B.2

Bristly sedge 2.1FE, SE,

1B.1Colusa layia 1B.2Dimorphic snapdragon 4.3Eel-grass pondweed 2.2Glandular western flax 1B.2Green jewel-flower 1B.2

1B.3Konocti manzanita 1B.3Mayacamas popcorn-flower 1A

Napa bluecurls 1B.22.2

Oval-leaved viburnum 2.31B.1

Rincon Ridge ceanothus 1B.1Robust monardella 1B.2Serpentine cryptantha 1B.1Small-flowered calycadenia 1B.2

Small groundcone 2.3Sonoma canescent 1B.2




Status2

CM UL BM PG LA LU CO HO HS KE CHmanzanitaTwo-carpellate western flax 1B.2

Woolly meadowfoam 4.2Natural Communities

Clear Lake Drainage Cyprinid /Catostomid Stream

None

Clear Lake Drainage Resident Trout Stream

None

Clear Lake Drainage Seasonal Lakefish Spawning Stream

None

Coastal and Valley Freshwater Marsh None

Northern Interior Cypress Forest None

Serpentine Bunchgrass None

Highlighting denotes the quadrangle in which the project site is located.

1Quadrangle CodeCM = Cow Mountain LA = Lakeport HS = Highland SpringsUL = Upper Lake LU = Lucerne KE = KelsevilleBM = Bartlet Mtn. CO = Clearlake Oaks CH = Clearlake Highlands

HO = Hopland

2Status CodesFederal/StateFE = Federally Listed Endangered FD = Federally Delisted SSC = State Species of Concern FT = Federally Listed Threatened SE = State Listed EndangeredFC = Federal Candidate Species ST = State Listed Threatened

California Native Plant SocietyList 1A = Plants Presumed Extinct in CaliforniaList 1B = Plants Rare, Threatened or Endangered in California and ElsewhereList 2 = Plants Rare, Threatened, or Endangered in California, But More Common ElsewhereList 3 = Plants About Which We Need More Information A Review ListList 4 = Plants of Limited Distribution A Watch List

Threat Ranks0.1 = Seriously Threatened in California0.2 = Fairly Threatened in California0.3 = Not Very Threatened in California


Appendix EEvaluation of the Potential for Special-Status Species or Other Species Identified by the CNDDB to Occur at the Project Site


Appendix FChecklist of Vascular Plant Species Observed

Amaranthaceae Amaranth FamilyAmaranthus albus Tumbleweed

Apiaceae Carrot FamilyLomatium macrocarpum Large-fruited lomatiumPerideridia sp. YampahTorilis arvensis Field hedge-parsley

Asteraceae Sunflower FamilyAchyrachaena mollis Blow-wivesAgoseris grandiflora Large-flowered agoserisAgoseris heterophylla Annual agoserisAncistrocarphus filagineus Wooly fishhooks/false neststrawAnthemis cotula Stinking chamomileBaccharis pilularis Coyote-brushCalycadenia pauciflora Smallflower western rosinweedCarduus pycnocephalus Italian thistleCentaurea solstitialis Yellow star thistleChamomilla suaveolens Pineapple weedCirsium cymosum Peregrine thistleFilago gallica Narrow-leaved filagoHemizonia congesta ssp. clevelandii Hayfield tarweedHypochaeris glabraLactuca sp. Prickly lettuceLagophylla ramosissima var. ramosissima Common hareleafLasthenia californica California goldfieldsLayia septentrionalis Colusa tidytipsMicropus californicus var. californicus Slender cottonweedMicroseris douglasii ssp. douglasii Douglas' silverpuffsPsilocarphus tenellus var. tenellus Slender woolly marblesRigiopappus leptocladus RigiopappusSenecio vulgaris Old-man-in-the-SpringSonchus asper ssp. asper Prickly sow thistleUropappus lindleyi Silverpuffs

Boraginaceae Borage FamilyAmsinckia lunaris Bent-flowered fiddleneckAmsinckia menziesii var. menziesii Menzies' fiddleneckCryptantha clevelandii var. dissita Cleveland's cryptanthaPlagiobothrys nothofulvus Rusty popcorn-flower

Brassicaceae Mustard FamilyAthysanus pusillus Petty athysanusBrassica rapa Field-mustardCapsella bursa-pastorisLepidium sp. PeppergrassLepidium nitidum var. nitidum Shining peppergrassStreptanthus barbiger Bearded jewelflowerThysanocarpus curvipes Lace pod

Lake County Courthouse SiteApril 9 and 29, May 17, and June 19, 2010

CHECKLIST OF VASCULAR PLANT SPECIES OBSERVED

500-01 Lake Co. Courthouse Site Plant List 4-9, 4-29, 5-17, & 6-19-10.xlsx 1 of 5

Lake County Courthouse SiteCHECKLIST OF VASCULAR PLANT SPECIES OBSERVED

Campanulaceae Bluebell FamilyGithopsis specularioides Common bluecup

Caryophyllaceae Pink FamilyCerastium glomeratum Mouse-eared chickweedMinuartia douglasii Douglas' sandwortPetrorhagia dubia Grass pinkScleranthus annuus ssp. annuus German knotgrass Spergularia rubra Ruby sand spurry

Convolvulaceae Morning Glory FamilyConvolvulus arvensis Bindweed

Crassulaceae Stonecrop FamilyCrassula tillaea Moss pygmy weed

Cucurbitaceae Gourd FamilyMarah sp. Man-root

Cuscutaceae Dodder FamilyCuscuta californica Chaparral dodder

Euphorbiaceae Spurge FamilyEremocarpus setigerus Dove weed

Fabaceae Legume FamilyAstragalus gambelianus Gambel's dwarf milkvetchLotus sp. LotusLotus denticulatus Riverbar birds-foot trefoilLotus humistratus Hairy lotusLotus purshianus Spanish lotusLupinus bicolor Bicolored lupineMedicago minima Hairy bur-cloverMedicago polymorpha California bur-cloverMedicago praecox Mediterranean bur-cloverTrifolium albopurpureum var. dichotomum Branched Indian cloverTrifolium bifidum var. decipiens Deceptive cloverTrifolium dubium Little hop cloverTrifolium hirtum Rose cloverTrifolium willdenovii Tomcat cloverVicia sativa ssp. nigra Garden vetchVicia villosa ssp. villosa Winter vetch

Fagaceae Oak FamilyQuercus lobata Valley oak (seedling)

Gentianaceae Gentian FamilyCentaurium muehlenbergii Muhlenberg's centaury



Geraniaceae Geranium FamilyErodium botrys Long-beaked filareeErodium brachycarpum Short-fruited storksbillErodium cicutarium Red-stemmed filaree

Hydrophyllaceae Waterleaf FamilyPhacelia corymbosa Serpentine phacelia

Iridaceae Iris FamilySisyrinchium bellum Blue-eyed grass

Juncaceae Rush FamilyJuncus bufonius Toad rush

Liliaceae Lily FamilyAllium falcifolium Scytheleaf onionBrodiaea californica var. californica California brodiaeaCalochortus vestae Coast Range mariposa lilyChlorogalum sp. Soap plantDichelostemma capitatum ssp. capitatum Blue dicks

Malvaceae Mallow FamilySidalcea diploscypha Fringed checkerbloom

Onagraceae Evening-Primrose Family Camissonia graciliflora Hill suncupClarkia gracilis ssp. gracilis Slender clarkiaClarkia gracilis ssp. tracyi Tracy's clarkiaClarkia purpurea ssp. quadrivulnera Winecup clarkiaEpilobium minutum Chaparral willowherb

Orobanchaceae Broom-rape FamilyOrobanche fasciculata Clustered broom-rape

Papaveraceae Poppy FamilyEschscholzia californica California poppyPlatystemon califonicus Creamcups

Plantaginaceae Plantain Family Plantago sp. PlantainPlantago erecta

Poaceae Grass Family Aegilops triuncialis Barbed goatgrassAira caryophyllea Silver hairgrassAvena barbata Slender wild oatsAvena fatua Wild oatsBromus carinatus var. carinatus California bromeBromus diandrus Ripgut grassBromus hordeaceus Soft chessBromus madritensis ssp. rubens Red bromeDeschampsia danthonioides Annual hairgrass



Elymus multisetus Big squirreltailHordeum brachyantherum ssp. californicum California barleyHordeum marinum ssp. gussoneanum Mediterranean barleyHordeum murinum Foxtail barleyLolium multiflorum Annual ryegrassMelica californica California melicNasella pulchra Purple needlegrassPoa annua Annual bluegrassPoa secunda ssp. secunda One-sided bluegrassScribneria bolanderi Scribner grassSecale cereale RyeTaeniatherum caput-medusae Medusa headVulpia microstachys var. ciliata Fringed fescueVulpia microstachys var. microstachys Small fescueVulpia microstachys var. pauciflora Few-flowered fescue Vulpia myuros var. myuros Rattail fescue

Polemoniaceae Phlox FamilyGilia capitata ssp. capita Globe giliaGilia tricolorLeptosiphon bolanderi Bolander's linanthusLinanthus bicolor Bicolored linanthus

Polygonaceae Buckwheat FamilyEriogonum nudum Naked buckwheatEriogonum vimineum Wicker buckwheatRumex crispus Curly dock

Portulacaceae Purslane Family Calandrinia ciliata Red maidsClaytonia exigua ssp. exigua Little miner's-lettuceClaytonia perfoliata

Primulaceae Primrose FamilyAnagallis arvensis Scarlet pimpernel

Pteridaceae Brake FamilyPentagramma triangularis ssp. triangularis Goldback fern

Ranunculaceae Buttercup FamilyDelphinium hansenii ssp. hansenii Eldorado larkspurRanunculus sp. Buttercup

Rosaceae Rose FamilyCrataegus sp. Hawthorn (horticultural)

Rubiaceae Madder FamilyGalium aparine CleaversGalium parisiense Wall bedstraw



Scrophulariaceae Snapdragon Family Castilleja attenuata Valley tasselsCastilleja exserta ssp. exserta Exserted Indian paintbrushCastilleja rubicundala ssp. lithospermoides Cream sacsCollinsia sparsiflora var. sparsiflora Spinster's blue eyed MaryMimulus guttatus Common monkey-flowerTriphysaria eriantha Johnny tuckVerbascum blattaria Moth mullein

Taxodiaceae Bald Cypress FamilySequoia sempervirens Redwood (horticultural)

Valerianaceae Valerian FamilyPlectritis macrocera White plectritis



Appendix GChecklist of Wildlife Species Observed


Checklist of Wildlife Species ObservedLake County Courthouse

675 Lakeport Boulevard, Lakeport, CACommon Name Scientific Name Status

BIRDS

American crow Corvus brachyrhynchos None

Black-tailed jackrabbit Lepus californicus None

California gull Larus californicus None

Common raven Corvus corax None

Killdeer Charadrius vociferus None

Red-tailed hawk Buteo jamaicensis None

Western scrub-jay Aphelocoma californica None

MAMMALS

California ground squirrel Otospermophilus beecheyi None

Gopher Thomomys sp. None

REPTILES

Western fence lizard Sceloperus occidentalis None

Prepared for:

July 16, 2010Adminstrative Office of the Courts

500-01

Pre-jurisdictional Delineation Report

Lake County Courthouse Site675 Lakeport BoulevardLake County, California

500-01 Delineation Report Lake County Courthouse Site ENPLAN1

Lake County Courthouse Site


Applicant/Land Owner:Administrative Office of the Courts2860 Gateway Oaks Drive, Suite 400Sacramento, CA 95833Attention: Laura Sainz

Access:From Lakeport, take Highway 29 to the Lakeport Boulevard exit. Travel east on Lakeport Boulevard approximately 1000 feet. The site is on the south side of Lakeport Boulevard and can be accessed from the road margin.

I. INTRODUCTIONThe ±6.4-acre study site is located east of the intersection of Lakeport Boulevard

and Highway 29 in the City of Lakeport, Lake County. The study site encompasses the

subject ±5.8-acre parcel as well as the southern fill slope along Lakeport Boulevard to

the north. As shown in Figure 1, the site is situated near the center of Section 25,

Township 14 North, Range 10 West (Lakeport, CA, 7.5-minute quadrangle). The site is

identified as Lake County Assessor Parcel Number 025-521-410 and is being

evaluated for potential construction of a new Lake County courthouse.

The site elevation ranges between 1,340 and 1,400 feet above sea level. The

site was historically an oak woodland, and was used for agriculture and grazing

beginning in the late 1930s; the site was cleared of trees and shrubs in the early 1970s,

and was graded prior to 1988 (URS, 2009). Grading dramatically altered the natural

contours of the site. Roughly 20 feet of surface material was removed from the upper

portion of the site, resulting in two level terraces.


which support a serpentine herb community. The serpentine herb community generally

consists of a sparse, low-growing cover of annual and perennial forbs and grasses

including naked buckwheat, wicker buckwheat, reflexed fescue, serpentine phacelia,

milkvetch. The lower terrace, on the eastern edge of the study area, supports an

annual grassland community. Common species in this community include wild oats,

soft chess, California meadow barley, cream sacs, winter vetch, Spanish lotus, and

various clovers. All of the above species have an indicator status of FACU or drier.

05.19.10

Figure 1

Project Vicinity Map


X 0 2,000Feet


Site

Project Site

USGS Lakeport 7.5-minute QuadrangleSection 25, Township 14 North, Range 10 WestCentroid: Lat: 39° 2' 1.56" Long: -122° 55' 14.54"


According to the U.S. Department of Agriculture, Natural Resources

Conservation Service (NRCS, 2010), two soil units are present on the study site.

Henneke-Montara-rock outcrop complex, 15-30 percent slopes, covers nearly the

entirety of the study site. A very small amount of Still loam, stratified substratum, is

mapped as occurring in the extreme northeast corner of the site. The Henneke-

Montara-rock outcrop complex is not considered hydric, while the Still soil unit is partly

hydric, i.e., it may contain inclusions of hydric soils. It should be noted that past grading

activities on the site have resulted in removal and/or redistribution of most of the on-site

soils.

The climate of the project vicinity is of the Mediterranean type, with cool, moist

winters and hot, dry summers. Annual precipitation averages ±28.4 inches in the

community of Lakeport, which reasonably approximates conditions on the subject site

(Western Regional Climate Center, 2010).

II. METHODOLOGYPrior to undertaking the field studies, National Wetlands Inventory maps (U.S.

Fish and Wildlife Service, n.d.) were reviewed to determine if any jurisdictional waters

had been previously reported on or within one-half mile of the project site. Such data is

not available for the Lakeport quadrangle.

The primary field investigation was conducted on April 29 and 30, 2010. During

the field investigation, field conditions were relatively wet. Average April rainfall for the

City of Lakeport measures 2.19 inches; actual rainfall totals for April 2010 measured

6.89 inches (NOAA, 2010).

The wetland investigation was conducted in accordance with technical methods

outlined in the Corps of Engineers Wetlands Delineation Manual (U.S. Department of

the Army, Corps of Engineers, 1987) and under the Regional Supplement to the Corps

of Engineers Wetland Delineation Manual: Arid West Region (U.S. Department of the

Army, Corps of Engineers, 2008

this report. Wetland Determination Data Forms are presented in Appendix A of this

report.


Although no wetlands were identified, several non-wetland waters of the United

States are present. these features

is represented by the ordinary high water mark. As described in the Code of Federal

Regulations Title 33: Navigation and Navigable Waters-Sec. 328.3(e), the ordinary high

water mark is defined as the line on the shore established by fluctuations of water

indicated by physical characteristics. These may include a clear/natural line on the

bank, shelving, changes in soil, destruction of terrestrial vegetation, presence of litter

and debris, or other appropriate means that consider the characteristics of the

surrounding areas. The limits of on-site ditches and seasonal waters were identified in

the field using these indicators.

Scientific nomenclature for plants cited in this report is in accordance with the

taxonomic treatments presented in A Synonymized Checklist of the Vascular Flora of

the United States, Canada, and Greenland (Kartesz, 1994). The wetland indicator

status of the plants was determined using the National List of Plant Species That Occur

in Wetlands: California (Region 0) (U.S. Department of the Interior, Fish and Wildlife

Service, 1988). Soil colors were identified using Munsell Soil Color Charts (Kollmorgen

Instruments Corporation, 2000).

Coordinates along the perimeters of non-linear waters were obtained using a

global positioning system (GPS) unit capable of sub-meter accuracy. Coordinates for

the centerlines of ditches were also recorded with the GPS unit; the aerial extent of the

ditches was calculated based on cross-sectional measurements taken at roughly 25-

foot intervals. The GPS coordinates were downloaded into ArcMap for mapping and

acreage calculations.

III. RESULTSDuring the field investigation, ENPLAN mapped eight non-wetland waters of the

United States within two categories: seasonal waters and constructed ditches. These

features are characterized below. The results of the field delineation effort are

summarized in Tables 1 and 2 and shown in Figure 2. Representative photos are

presented in Appendix B.

500-01 Delineation Report Lake County Courthouse Site5

Seasonal Waters: Two seasonal waters, on the western edge of the upper terrace, were created when the site was graded and bedrock was exposed.Water now ponds to a depth of two to three inches in these shallow depressionsunderlain by bedrock. Representative plant species include scribner grass (Scribneria bolanderi, UPL), annual hairgrass (Deschampsia danthonioides,FACW), and rigiopappus (Rigiopappus leptocladus, UPL), but vegetative cover is less than five percent. As described in the Arid West Supplement, features with an ordinary high water mark and less than five percent vegetative cover are non-wetland waters. The extent of ponding was documented through site inspections on February 8 and April 9, 29 and 30, 2010, as well as by the presence of water-stained rock, sediment deposits, and a biotic crust.

Constructed Ditches: Constructed ditches are excavated features that may be located in either wetlands or uplands, and may convey water collected from sheet flow or diverted from other water bodies. The jurisdictional status of constructed ditches depends in part on these characteristics. The on-site ditchesare constructed in uplands, and receive sheet-flow runoff and discharge from thetwo non-wetland waters on the upper terrace. Most of the ditches have only ephemeral flow. However, 3:CD and 8:CD do not drain well and support wetland plant species in their lower ends; species present include annual ryegrass(Lolium multiflorum = L. perenne, FAC*), Hordeum marinum ssp. gussoneanum= H. hystrix, FAC), and common monkey-flower (Mimulus guttatus, OBL).

Table 1Summary of Waters by Type

Type Areasq. ft. acres

Constructed Ditches 2,108 0.048Seasonal Waters 3,793 0.087

Total Waters 5,901 0.135

Table 2Waters by Map ID

Map ID Type Average

Width Length Areasq. ft. acres

1 Constructed Ditch 1.7 350 595 0.0142 Constructed Ditch 0.5 20 10 0.0003 Constructed Ditch 4.6 206 948 0.0224 Seasonal Water 2,599 0.0605 Seasonal Water 1,194 0.0276 Constructed Ditch 1.6 178 285 0.0077 Constructed Ditch 1.5 10 15 0.0008 Constructed Ditch 2.3 111 255 0.006


?

07.16.10Feature and boundary locations depicted are approximate only.

X 0 100Feet

Study Area Boundary

Parcel Boundary

Seasonal Water

Constructed Ditch

Culvert

Flow Direction

? Storm Drain Inlet

Data Point

1:CD 2:CD

4:SW

5:SW6:CD

7:CD

8:CD

3:CD

1:CD

DP1

DP3

Lakeport Boulevard

DP2

sq. f t. acres

1:CD Constructed Ditch 1.7 350 595 0.0142:CD Constructed Ditch 0.5 20 10 0.0003:CD Constructed Ditch 4.6 206 948 0.0224:RW Seasonal Water 2,599 0.0605:RW Seasonal Water 1,194 0.0276:CD Constructed Ditch 1.6 178 285 0.0077:CD Constructed Ditch 1.5 10 15 0.0008:CD Constructed Ditch 2.3 111 255 0.006

5,901 0.135

Potential Waters by Map IDArea

Map ID TypeAverage

Width (feet)Length(feet)

Total Waters

Project:Delineator:Date:Date Revised:

February 8 & April 9, 29, & 30, 2010

Lake County Courthouse SiteDon Burk

Figure 2Potential Waters of the U.S. and/or State


IV. JURISDICTIONAL DETERMINATIONAs described in Regulatory Guidance Letter 08-02, the applicant concurs with the

Army Corps of Engineers that waters regulated under the Clean Water Act may be

present on the site. As such, these waters will be treated as jurisdictional for the

purpose of calculating fill and satisfying future mitigation requirements. The applicant

understands that they can later request and obtain an approved JD if that later becomes

necessary or appropriate during the permit process or during the administrative appeal

process.


V. REFERENCESKartesz, J.T. 1994. A Synonymized Checklist of the Vascular Flora of the United

States, Canada, and Greenland. 2nd edition. Volume 1 Checklist, Volume 2 Thesaurus. Timber Press, Inc., Portland, Oregon.

Kollmorgen Instruments Corporation. 2000. Munsell Soil Color Charts.



U.S. Department of the Army, Corps of Engineers. 1987. Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1. National Technical Information Service, Springfield Virginia.

_____. 2008. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0), eds. J.S. Wakeley, R.W. Lichvar, and C.V. Noble. ERDC/EL TR-08-28. Vicksburg, MS: U.S. Army Engineer Research and Development Center.

U.S. Department of the Interior, Fish and Wildlife Service. 1988. National List of Plant Species That Occur in Wetlands: California (Region 0). Biological Report 88 (26.10).

_____. n.d. National Wetlands Inventory. www.wetlandsfws.er.usgs.gov.

U.S. Geological Survey. 1958. Lakeport, California, 7.5-minute quadrangle sheet. Photo-revised 1978.

Western Regional Climate Center (WRCC). 2010. Lakeport, CA. www.wrcc.dri.edu/climsum.html.


www.wetlandsfws.er.usgs.gov

www.wrcc.dri.edu/climsum.html

500-01 Delineation Report Lake County Courthouse Site ENPLAN

APPENDIX A

Wetland Determination Forms


APPENDIX B

Representative Photos

Representative Photos of On-site Waters

500-01

4:SW looking southeast 2/8/10


500-01

Biotic crust in 5:SW 4/29/10

1:CD looking west 4/29/10

500-01

Lower terminus of 1:CD and 2:CD, with discharge to uplands 4/29/10

3:CD looking north 4/29/10

500-01

6:CD (foreground) looking northeast 4/29/10

8:CD looking west toward culvert 3/17/10

500-01

Storm drain inlet at terminus of 8:CD 4/29/10

Non-jurisdictional drainage near 7:CD with no evidence of OHWM 4/29/10

Appendix C Biological Resources Documentation

Biological Study Report

Lake County Courthouse675 Lakeport Boulevard, Lakeport, CA

Prepared for:


July 15, 2010

Prepared by:

500-01 Lake County Courthouse BSR ENPLANi

TABLE OF CONTENTS

1. INTRODUCTION ....................................................................................................... 1

2. METHODOLOGY AND STAFF QUALIFICATIONS................................................... 2

3. RESULTS ................................................................................................................. 4

Plant Communities/Wildlife Habitats .......................................................................... 4

Special-Status Plant Species..................................................................................... 7

Special-Status Animal Species ............................................................................... 10

Nesting Migratory Birds ........................................................................................... 11

Resource-Agency Permits ...................................................................................... 11

4. CONCLUSIONS AND RECOMMENDATIONS ....................................................... 13

5. REFERENCES CITED ............................................................................................ 15

APPENDICES

Appendix A. Figures

Appendix B. Site Photographs

Appendix C. Wildlife Habitat Relationships Report Summary

Appendix D Rarefind (CNDDB) Report Summary

Appendix E. Evaluation of the Potential for Special-Status Species or Other Species Identified by the CNDDB to Occur on the Site

Appendix F. Checklist of Vascular Plant Species Observed

Appendix G. Checklist of Wildlife Species Observed


1. INTRODUCTIONThe purpose of this biological study report is to identify and characterize sensitive

natural communities and plant and wildlife resources that are known or expected to

occur on a ±5.8-acre project site at 675 Lakeport Boulevard, in the City of Lakeport,

Lake County. The site, identified as Lake County -521-

410, is being evaluated for potential construction of a new courthouse. As shown in

Figure 1 of Appendix A, the site is located in near the center of Section 25, Township 14

North, Range 10 Lakeport 7.5-minute

quadrangle. Photographs of the site are provided in Appendix B.


2. METHODOLOGY AND STAFF QUALIFICATIONSPrior to conducting fieldwork, a biological records search was completed. This

consisted of reviewing the California Department of Fish and Game's California Natural

Diversity Data Base (CNDDB) as well as available local records. The CNDDB records

search covered a 10-mile radius around the site. This entailed review of records for

portions of the following quadrangles: Cow Mountain, Upper Lake, Bartlett Mountain,

Oaks, Hopland, Highland Springs,

Kelseyville, and Clearlake Highlands. Available local records consisted of a biological

study report and wetland delineation (Northwest Biosurvey, 2006) prepared for a site

approximately 0.3 miles to the north of the subject site on Martin Street, and an Initial

Study for the same site (City of Lakeport, 2010). The Martin Street site has physical

and biological characteristics similar to the subject site, supports several of the same

special-status plant species, and was used as a reference site to check the phenology

of local special-status plant species.

Upon completion of the pre-field review, a botanical field survey was undertaken

in general accordance with Protocols for Surveying and Evaluating Impacts to Special

Status Native Plant Populations and Natural Communities (DFG, 2009). Because of the

potential requirement for frontage improvements on Lakeport Boulevard, lands between

the subject parcel and the street were included in the biological study area. The

botanical survey was conducted on April 9 and 29, May 17, and June 19, 2010. All of

the special-status plant species potentially occurring in the study area would have been

evident at the time the fieldwork was conducted. The survey consisted of an intensive

and systematic evaluation of the site; the field survey effort included four to six hours of

field time during each of the four site visits.

The locations and approximate population numbers/densities of the identified

special-status plant populations were determined by gridding each population into a

number of small polygons and then estimating the number of plants in each polygon.

The wildlife evaluation was conducted in three phases. The first phase consisted

of the records search described above. Under the second phase, the habitats and

special habitat elements in the study area were determined through field

reconnaissance. A list of wildlife species that could potentially occur in the identified


Habitat Relationships (WHR)

System, Version 8.2 (DFG, 2008). This is a predictive system based on scientific

information regarding wildlife species and their known habitat relationships. It is useful

as a general pre-field screen and provides a somewhat broader view of special-status

species potentially occurring in the study area.

The wildlife survey was conducted on March 17, 2010. Many of the special-

status animal species potentially occurring in the study area would have been evident at

the time the fieldwork was conducted. The potential presence of species not readily

identifiable during the field surveys was determined on the basis of observed habitat

characteristics. The initial field effort included approximately three hours of field

observations; additional wildlife observations were made during the botanical field

survey visits.

The botanical field surveys were conducted by Donald Burk. Mr. Burk has a

Bachelor of Arts degree in Biological Sciences and a Master of Science degree in

Botany. He has over 25 years of experience in the design and implementation of

botanical field studies. He has previously conducted botanical surveys in Lakeport and

is familiar with flora of the region as well as state and federal statutes pertaining to

special-status species. The wildlife evaluation was conducted by Darrin Doyle. Mr.

Doyle has a Bachelor of Science degree in biology, and has 10 years of experience

conducting biological surveys in California. He is familiar with wildlife species of the

region and their habitat requirements.

California red-legged frog and vernal pool crustaceans.


3. RESULTSPlant Communities/Wildlife Habitats

The study site is situated between approximately 1,340 and 1,400 feet above sea

level, and is surrounded on three sides by urban development. The site was historically

an oak woodland, and was used for agriculture and grazing beginning in the late 1930s;

the site was cleared of trees and shrubs in the early 1970s, and was graded prior to

1988 (URS, 2009). Soils on the site are identified as Henneke-Montara-rock outcrop

complex, 15 to 50 percent slopes, with a negligible amount of Still loam, stratified

substratum, in the extreme northeast corner of the site (USDA, NRCS, 2009). The

Henneke-Montara complex consists of very deep, moderately well-drained soils formed

in alluvium from mixed rock types. However, grading activities dramatically altered the

soils and natural contours of the site. Roughly 20 feet of surface material was removed

from the upper portion of the site, resulting in two level terraces.


which support a serpentine herb community. The lower terrace supports a disturbed

annual grassland. These two communities are described in more detail below; locations

of the communities are shown on Figure 3 of Appendix A and photographs are provided

in Appendix B. Two small, shallow seasonal waters with rock substrates are present on

the upper terrace. Most runoff from the site enters constructed ditches that convey flow

to the east. Flow enters drain system, which discharges into Clear

Lake approximately ¼-mile east of the site.

Annual grassland

Annual grasslands are characterized by a sparse to dense cover of annual

Germination occurs with the onset of the fall rains; growth, flowering, and seed-set

occur from winter through spring. With a few exceptions, the plants are dead through

the summer-fall dry season, persisting as seeds. On the subject site, the annual

grassland community is best represented on the lower terrace of the site, on the eastern

edge of the study area. Common species in this community include wild oats, soft