Transcript
Page 1: Today’s Lecture  Announcements  Phase I Environmental Site Assessment  Phase II Environmental Site Assessment

Today’s LectureAnnouncementsPhase I Environmental Site AssessmentPhase II Environmental Site Assessment

Page 2: Today’s Lecture  Announcements  Phase I Environmental Site Assessment  Phase II Environmental Site Assessment

AnnouncementsLecture

Tuesday: Environmental site assessments Thursday: HAZWOP (Bruce Renz)

Lab Wednesday: HAZWOP, 2 pm, ECCE 1B47 Wednesday, Sept 9: Phase I ESA (Jack

Webster) meet in ECCE 1B47 walk to site proper attire for site inspection

Wednesday, Sept 16: Report Writing Workshop (Jack Webster)Tchobanoglous and Leverenz, 2013. A Guidance Manual on the Preparation of Technical Reports, Papers, and Presentations, 2nd Edition.

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Environmental Site AssessmentsPhase I ESA

ASTM E1527-13

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Environmental Site AssessmentPhase I ESA steps

client-provided information historical research regulatory agency research interviews

property owners site personnel

site reconnaissance subject property and adjacent properties assess topography, drainage, groundwater

flow direction report

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Environmental Site AssessmentClient-provided information

title records known environmental liens activity and use limitations (AULs) “specialized knowledge” about

environmental problems “commonly known” information “reasonably ascertainable” information valuation reduction for environmental

issues owner, occupant, lessee, property

manager information reason for performing Phase I ESA

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Environmental Site AssessmentHistorical research

search of records regarding contamination required distances based on site type,

contaminant type adjacent to property 1 mile

up-gradient sources back to “first developed use or 1940, whichever

is earlier” database research companies

historical aerial photos and topographic maps fire insurance maps land titles; zoning and building permit records mining claims

time resolution of about 5-year intervals

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Environmental Site Assessment Interviews

conducted by Environmental Professional must include key personnel

current site owner current site manager current occupants and lessees

abandoned properties must interview adjacent property owners

questions current use, chemicals on site knowledge of previous use knowledge of environmental investigations

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Environmental Site AssessmentSite reconnaissance

should be done by Environmental Professional

entire property (to extent practical) interior

maintenance areas chemical storage and use areas boiler rooms

exterior document any access limitations

locked rooms, gases, dangerous access snow cover

identify RECs document with photographs

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Environmental Site AssessmentReport

describe purpose and scope of services document all findings

list RECs identified identify information gaps

were standards met? assess significance of gaps relative to RECs

provide opinions regarding RECs recommend additional investigation for

RECs list environmental concerns outside of

Phase I scope ASTM section 13.1.5 has partial list

declare certification as Environmental Professional

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Environmental Site AssessmentPitfalls

Phase I ESAs often regarded as a commodity

lowest bidder regardless of quality example: Argo Mine, Boulder County

clients may not prioritize delivery of information

potentially different opinions about RECs caution regarding

“reliance letters” letter from one party to

another allowing reliance on previousPhase I ESA report

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Environmental Site AssessmentPhase I ESA

example:Valmont Butte,Boulder, Colorado

report

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Environmental Site AssessmentBrownfield sites CERCLA property where re-

use or re-development is complicated by the presence or perceived presence of environmental contamination

potential liability limits remediation of under-used or abandoned properties

neighborhood blight reduced value of

surrounding property

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Environmental Site AssessmentBrownfields Redevelopment – Small Business Liability Relief and Revitalization Act, 2002 liability protection for purchasers and

owners of contaminated property must conduct “all appropriate inquiry” to

qualify for liability protection other versions of innocent landowners

bona fide prospective purchaser purchaser unaware of another’s claim to property

title contiguous property owner

owner unaware of contamination from adjacent property

ability to apply for grants to pay for property remediation and re-development

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Environmental Site AssessmentBrownfields grant

example:Elysian Park,Jamestown, Colorado

proposal

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Environmental Site AssessmentsExample from consulting firm

Phase I Environmental Site Assessment

Phase II Environmental Site Assessment

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Environmental Site AssessmentsPhase II ESA

assessment of expected environmental liabilities (RECs) of a site

sampling and analysis type, distribution, and extent of hazardous

substances components

Sampling and Analysis Plan Quality Assurance Project Plan Health and Safety Plan Report – purpose, summary of sampling and

analysis, health risk assessment, data validation, results and recommendations

ASTM E1903-11

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Environmental Site AssessmentsPhase II ESA

example:RTD FasTracksGold Line CorridorOlde Town StationDenver, Colorado

report


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