specifications for project removal

Specifications For Project Removal

Facility Removal

Condit Hydroelectric Project

FERC Project No. 2342

White Salmon River

Prepared for

Prepared by

And

November 2010

Technical Specifications

DIVISION 01 – GENERAL REQUIRMENTS

01 11 00 Summary of Work 01 14 00 Work Restrictions

01 26 00 Contract Modification Procedures

01 31 00 Project Management & Coordination 01 32 00 Construction Progress Documentation01 32 50 Construction Schedule and Progress Reports 01 32 80 Construction Sequence and Water Management Plan 01 33 00 Submittal Procedures 01 35 00 Special Project Procedures01 36 00 Special Historic Procedures

01 42 00 Reference Standards 01 45 00 Quality Control01 51 00 Temporary Utilities

01 52 00 Construction Facilities 01 53 00 Temporary Construction 01 55 13 Temporary Access Roads01 56 00 Temporary Barriers and Enclosures 01 57 13 Temporary Sediment and Erosion Control01 57 24 Spill Prevention, Control, and Countermeasure 01 57 25 Dust Control01 57 26 Aquatic Resources Protection 01 57 27 Sediment Management01 57 28 Woody Debris Management 01 59 00 Public Safety and Traffic Control

01 62 00 Project Permits

01 74 00 Cleaning and Waste Management

DIVISION 02 – EXISTING CONDITIONS 02 24 00 Environmental Assessment

02 41 00 Demolition and Deconstruction

02 81 00 Transportation and Disposal of Hazardous Materials

02 82 33 Removal/Control and Disposal of Paint with Lead 02 84 00 PCB and Mercury-Containing Light Tube Removal

DIVISION 11 – ATHLETIC AND RECREATIONAL

EQUIPMENT

11 65 00 Recreational Facility Management

DIVISION 31 - EARTHWORK 31 00 00 Earthwork

31 11 00 Clearing and Grubbing 31 17 16 Blasting Controls

3 1 41 16 Metal Sheet Piling

DIVISION 32 – EXTERIOR IMPROVEMENTS

32 90 00 Revegetation and wetlands Management

DIVISION 35 – WATERWAY AND MARINE

CONSTRUCTION

35 20 23 Dredging

PacifiCorp Energy 01 11 00 11/17/10 Condit Decommissioning - 1 - Issued for Construction

SECTION 01 11 00 SUMMARY OF WORK

PART 1 - GENERAL

1.1 SUMMARY

A. GENERAL. This section provides the general description, scope of the work, and requirements for the work included under these specifications. The work covered by these specifications will be incorporated into the Condit Hydroelectric Decommissioning project, which consists primarily of the demolition of the existing dam and intake structure, partial removal of entrapped sediment upstream of the dam and the associated streambed restoration and channel enhancements, and removal of exposed pipeline. In addition, this project consists of removal of an upstream coffer dam, a downstream surge tank and an optional removal of the existing powerhouse.

B. WORK INCLUDED UNDER THESE SPECIFICATIONS. The work under these specifications shall include furnishing all equipment and materials fully operated and maintained as necessary to complete the above scope; providing all labor, supervision, administration, and management; and supplying all construction equipment, materials, permits, and services necessary to perform the Condit Hydroelectric Decommissioning project, complete in accordance with these specifications, drawings, management plans, project permits, and other contract documents.

Major components of the work under these specifications are as follows: 1. Condit Dam

Contractor shall demolish, remove, and dispose of the existing concrete dam, gates, hoists and steel structures, trash racks, and control building, as described in more detail below, and as indicated on the drawings. Demolition includes embedded foundations and existing electrical/control wiring, conduits, and panels. Materials will be disposed of at an appropriate site. Disturbed areas will be revegetated and the stream channel will be reconstructed.

a. Drain the Northwestern Lake reservoir with the installation of a tunnel at the base of Condit dam. A large portion of the entrapped sediment upstream of Condit dam will be removed by use of this tunnel and this sediment will be washed downstream of the dam complex.

b. Remove the primary dam structure, including embedded foundations, and concrete intake structure as indicated on the drawings. Remove all materials including concrete and rebar. Clean broken concrete will be placed along the flowline. Concrete that is not appropriate for disposal along the flowline will be removed from the site.

c. Any rebar or metal protruding from concrete used or left on site shall be cut off even with the concrete. All steel removed will be removed from site. Concrete used on-site will be covered with a minimum of 12 inches of earth. The earth will be revegetated


using a native, certified noxious weed-free seed mix as specified in the Erosion Control Plan document.

d. Reconstruct the stream channel using native materials as indicated on the drawings. The reconstructed channel reach will be downstream of Northwestern Lake Park to the bypass outlet and will follow approximately its current alignment. Sediment from the former impoundment area may be used for on-site restoration.

e. Apply all pertinent Best Management Practices (BMPs), including stockpiling and later redistributing topsoil. Revegetate the stream bank using native seedlings, and seed all disturbed areas using native, noxious weed-free seed. All seedlings and seed mixes, and specifications and locations for the reconstructed floodplain must be approved by the Company prior to implementation.

f. The Contractor shall coordinate his actions and cooperate with other contractors and the Company in the best interest of the project.

g. Mobilization. The Contractor shall mobilize his work force and assemble the necessary equipment and materials to start the construction work. Contractor shall designate for Company's approval his proposed laydown, staging, and other construction areas to implement the work. Contractor submittals shall also be submitted for approval.

h. Demobilization. The Contractor shall demobilize his workforce and remove all construction equipment and materials from the site. The Contractor's laydown area shall be returned to its original condition.

2. Powerhouse Facility Contractor shall repair and take steps to preserve the powerhouse structure as indicated on the drawings. Contractor will repair the powerhouse and rehabilitate the site. Power generation equipment and ancillary appurtenances in the powerhouse will remain in place until such time that the Company removes them.

a. Remove downstream concrete tailrace. b. Leave the powerhouse building and foundations in a well-

maintained condition. This includes the following items: • Grade around building to provide positive drainage of surface water away

from building. • Patch small cracks in foundation and restore finish. • Board up all windows with one (1) inch marine grade plywood. • Repair and refurbish all soffit and facia, including replacing missing boards. • Patch cracks and holes, strip old paint, and apply new paint. • Repair and restore all windows and doors, including stripping and painting

frames. • Replace broken or cracked glass panes and make windows functional. • Repair or replace weather stripping/caulking around all doors and windows. • Secure sliding doors, remove screen panels, as needed, and make weather tight. • All petroleum products, and station batteries will be removed from the

powerhouse by Company. Company will also secure interior hatches and passageways.


c. Plug with concrete the outlet from the powerhouse at the river.

3. Flowlines and Penstocks Contractor shall remove exposed sections of the existing welded steel pipe and cap exposed pipe ends that are left on site, remove existing air vent piping, revegetate disturbed areas, remove existing miscellaneous pipeline supports.

a. Remove fully and partially exposed sections of the pipeline exposed pipe ends that are left on site. Remove the penstock (cement anchor blocks, 2 short penstock segments between the powerhouse and block). Either remove the short concrete support piers or bury them under a minimum of 18 inches of cover. Cap the ends of unremoved penstock segments with cast in place concrete plugs.

b. Seed areas of disturbed soil with a native, certified noxious weed-free seed mix as specified in the Erosion Control Plan.

4. Northwestern Lake Bridge Obtain the services of a professional engineer licensed in the State of Washington to design measures to stabilize Northwestern Lake Bridge as shown in the conceptual design in the contract drawings. The engineer selected shall be approved by the Company and Klickitat County. Coordinate through the Company requests to Klickitat County for record drawings, inspection reports or other relevant information on the bridge to facilitate the design. Submit the design for review by the Company and Klickitat County by February 15, 2011. Address review comments and resubmit design for approval and subsequent review by the State of Washington Department of Ecology, and the Federal Energy Regulatory Commission, assuming a review period of at least 60 days. Complete construction of stabilization measures prior to draining the reservoir. Coordinate with the Company and Klickitat County on detailed scheduling of work and any traffic restrictions required to accommodate construction of the modifications.

PART 2 – MATERIALS (not applicable)

PART 3 – EXECUTION (not applicable)

END OF SECTION

SECTION 01 14 00 WORK RESTRICTIONS

PART 1 – GENERAL

1.1 SUMMARY

A. WORK NOT INCLUDED UNDER THESE SPECIFICATIONS. The following items of work will be furnished by the Company: 1. Company will disconnect power to the diversion dam and powerhouse sites as required to facilitate the decommissioning construction work.

B. WORK UNDER SEPERATE CONTRACTS. In addition to the work under this contract, the Company will perform additional work concurrently or will interface with the work under this Contract. Work which will interface with work under this Contract includes, but is not necessarily limited to, the following: 1. Installation of new irrigation system for the Orchard property adjacent to Condit

dam. 2. Installation of a replacement waterline for the City of White Salmon.

Contractor shall work cooperatively with all other Contractors to minimize delays and impacts from other work. No claims shall be made for costs or schedule impacts related to work by other Contractors.



END OF SECTION


SECTION 01 26 00 REQUESTS FOR INFORMATION

PART 1 – GENERAL

1.1 SUMMARY

A. Section Includes: Administrative requirements for Requests for Information.

B. Prior to execution of a change order, the following documents shall be submitted as indicated.

1.2 REQUEST FOR INFORMATION (RFI)

A. General: 1. RFI's are requests for information originated, prepared and submitted by the

Contractor to the Project Manager only when the Contractor is unable to determine from the Contract Documents, the material, process, system or work to be installed. The Contractor will endeavor to keep the number of RFI’s to a minimum. For critical or emergency items, contact Project Manager at once.

2. In the event the Contractor believes that a clarification by the Project Manager results in additional cost or time, the provisions of Article 18 of the Contract shall apply.

3. Submit RFI’s on form provided by Project Manager. 4. Number RFI's sequentially; include date submitted. 5. Identify Project, pertinent Plan sheet, detail number, and Specification Section. 6. Specifically identify time response information as required to avoid impact on

Construction Schedule or Cost. Project Manager shall endeavor to respond to proper RFI’s within 7 Days, if possible.

B. RFI’s shall include written and graphic solutions proposed by Contractor. Project Manager will determine if Contractor’s proposal is in accordance with Contract Documents and design intent of Project. 1. Contractor's failure to make a reasonable effort to propose realistic solution may

result in RFI's being returned with no action. 2. RFI's that request information that is clearly shown in the Contract Documents

will be considered frivolous/improper and will be returned with no action.

C. Contractor to maintain current and accurate RFI Log.


PART 3 – EXECUTION (not applicable) END OF SECTION


SECTION 01 31 00 PROJECT MANAGEMENT AND COORDINATION

PART 1 – GENERAL

1.1 SUMMARY

A. PRECONSTRUCTION CONFERENCE. Prior to the commencement of Work at the site, a preconstruction conference will be held at a mutually agreed time and place by the Company. The conference shall be attended by:

• Contractor and its superintendent. • Principal Subcontractors. • Representatives of Engineer. • Representatives of Company. • Others as requested by the Contractor or Company.

Unless previously submitted to the Company, the Contractor shall bring to the conference the progress schedule for the Work.

The purpose of the conference is to designate responsible personnel and establish a working relationship. Matters requiring coordination will be discussed and procedures for handling such matters established. The agenda will include:

• Company and Project Specific Safety Requirements. • Contractor’s assignments for safety and first aid. • Quality Control and Inspection Program. • Review and coordination of permit requirements. • Contractor’s schedules. • Transmittal, review, and distribution of Contractor’s submittals. • Processing Applications for Payment. • Maintaining record documents. • Critical Work sequencing. • Field decisions and Change Orders. • Use of premises, office and storage areas, security, housekeeping, and Company's

needs.

The Company will preside at the conference and will arrange for keeping the minutes and distributing the minutes to all persons in attendance.

B. PROGRESS MEETINGS. The Contractor shall schedule and hold regular progress meetings at least twice monthly and at other times as requested by the Company or required by progress of the Work. The Contractor and all Subcontractors active on the site shall be represented at each meeting. The Contractor may at its discretion request attendance by representatives of its Suppliers, manufacturers, and other Subcontractors.

The Contractor shall preside at the meetings. Meeting minutes will be prepared and



distributed by the Contractor. The purpose of the meetings will be to review the progress of the Work, maintain coordination of efforts, discuss changes in scheduling, and resolve other problems which may develop.



END OF SECTION

SECTION 01 32 00 CONSTRUCTION PROGRESS DOCUMENTATION

PART 1 – GENERAL

1.1 SUMMARY

A PROGRESS REPORTS. The Contractor shall complete a daily field report each work day and submit one copy of a progress report with all appropriate daily field reports to the Company once each week in a format approved by the Company. Each topic shall include a brief narrative with use of charts, graphs, etc., as appropriate. The following topics shall be included: 1. Progress of work. 2. Construction schedule. 3. Installed/Removed quantities. 4. Problem areas.

a . Potential delays. b . Potential claims.

5. Material testing and results. 6. Work to be performed during the next week.



END OF SECTION


SECTION 01 32 50 CONSTRUCTION SCHEDULE AND PROGRESS REPORTS

PART 1 – GENERAL

1.1 SUMMARY

A. This section covers the schedule and scheduling requirements for performance and completion of the work included under this Contract. The schedule shall be incorporated into weekly progress reports as specified herein.

MILESTONE DATES. The milestone dates specified by the Company in the Contract Documents are associated only with the major items of work under this Contract. The listing of activities and dates is not intended to be a complete or detailed listing of all work under this Contract. It is understood and agreed that the dates specified by the Company in the Contract Documents are the latest feasible completion dates and that earlier dates may be attained as agreed to by the Company and the Contractor.

B. CONTRACTOR'S DETAILED SCHEDULE. Within 90 calendar days after the contract is executed, the Contractor shall submit a detailed construction schedule. The detailed schedule shall be based upon the dates specified by the Company in the Contract Documents.

The detailed construction schedule shall be in bar graph form acceptable to the Company.

The detailed construction schedule shall contain all activities of the construction plan, including acquisition, fabrication, and installation of equipment and materials. For all equipment and materials fabricated or supplied by the Contractor especially for this project, the schedule shall include the sequence of activities including issuance of purchase orders, preparation of shop drawings, fabrication, and delivery. Each activity shall be identified on the schedule by a descriptive title and shall be assigned an estimated number of working days required and an expected completion date. Periods of multiple shift work and overtime shall be noted.

The Contractor is responsible for determining the sequence and time estimates of the detailed daily construction activities; however, the Company reserves the right to require the Contractor to modify any portion of the schedule the Company determines to be impractical, infeasible, or unreasonable, and as required to coordinate the Contractor's activities with those of other parties and operation of the existing plant, and to assure the completion of the work by the stipulated date.

Schedules returned to the Contractor for revision or correction shall be resubmitted for review within 7 calendar days. Upon acceptance by the Company of the detailed schedule of activities, the Contractor will be responsible for maintaining such schedule.

Once a week, the Contractor shall submit with the progress report a complete list of all deviations from the detailed construction schedule to reflect the actual progress of the work, together with his proposed actions to alleviate any delays caused by the deviations.





END OF SECTION

SECTION 01 32 80 CONSTRUCTION SEQUENCE AND WATER MANAGEMENT PLAN

PART 1 – GENERAL

1.1 SUMMARY A. This section covers the sequence of construction activities and the management of

construction water for the work included under this Contract.

B. The contractor will prepare and submit a construction sequence schedule and corresponding water management plan (within 90 days following execution of the contract) that coincides with Erosion Control Plan as well as the Sediment Assessment, Stabilization, and Management Plan. The construction sequence and water management plan shall coordinate the construction work to satisfy regulatory agency requirements stipulated in the construction permits for the project.



END OF SECTION


SECTION 01 33 00 SUBMITTAL PROCEDURES

PART 1 – GENERAL

1.1 SUMMARY

A. SUBMITTAL. Gantt schedule and subsequent revisions shall be submitted to Company and shall reflect the actual progress of the project to within 5 days prior to submittal. At least five copies of the schedule shall be submitted.

B. SHOP DRAWINGS AND ENGINEERING DATA SCHEDULE. At the time schedule is submitted, a schedule shall be submitted of the items of materials, equipment, qualifications, plans, and data for which shop drawings and/or engineering data are required by the Specifications. For each required submittal item, the date shall be given for intended submission of the item to Company for review and the date required for its return to avoid delay in any activity beyond the scheduled start date. Sufficient time shall be allowed for initial review, correction and resubmission, and final review of all submittals. In no case will a schedule be acceptable which allows less than 5 days for each review by Company.

SURVEY DATA. All field books, notes, and other data developed by Contractor in performing surveys required as part of the Work shall be available to Company for examination throughout the construction period. All such data shall be submitted to Company with the other documentation required for final acceptance of the Work.

C. SHOP DRAWINGS AND ENGINEERING DATA. General. This section covers engineering data, including manufacturer's drawings which the Contractor shall submit for review. Timely submittal of engineering data is essential to the scheduled progress and completion of the project and is the essence of this Contract.

Engineering data covering all materials to be furnished under this Contract shall be submitted. These data shall include drawings and descriptive information in sufficient detail to show the kind, size, arrangement, and operation of component materials; the external connections, anchorage, and supports required; and dimensions needed for installation and correlation with other materials.

Such data shall include, but not be limited to, the following: Grout mix and material data. Bypass pipe data. Parking lot and pathway gravel surfacing data. Off site disposal locations. Final construction sequence and water management plan, including any dewatering systems. Proposed staging and construction laydown areas. Proposed storage area for removed equipment. Hazardous material removal plans.

The Company will accept engineering data submittals from the Contractor only. All engineering data shall be identified by the materials represented and by using the nomenclature established in the contract documents.

D. REVIEW OF ENGINEERING DATA. Northwestern Lake Bridge Design-incorporate requirements for preparation and submittal of the bridge design per the agreement with the


County. These include approval of the engineer (Kleinfelder). Submit design to County for review by February 15. County has 14-day review period.

The review of engineering data will cover only general conformity of the data to the specifications and documents, external connections, and interfaces with existing dimensions, which affect the project arrangement. The review does not indicate a thorough review of all dimensions, quantities, and details of the materials or item indicated or the accuracy of the information submitted; nor shall be construed as relieving the Contractor from any responsibility for errors or deviations from the requirements of the contract.

All engineering data submitted, after final processing and acceptance by the Company, shall become a part of the Contract documents and the work indicated or described thereby shall be performed in conformity therewith, unless otherwise required in writing by the Company. Processing. A copy of each submittal reviewed will be returned to the Contractor as stipulated herein.

When drawings and data are returned marked EXCEPTIONS NOTED, the changes shall be made as noted thereon; and two corrected copies each shall be submitted to the Company.

When the drawing and data are returned marked RETURNED FOR CORRECTION, the corrections shall be made as noted thereon and two corrected copies each shall be submitted to the Company. Work shall not proceed on materials indicated on drawings or data which have been returned for corrections.

No work shall be performed in connection with the fabrication or manufacture of equipment and materials until the drawings and data have been reviewed by the Company except at the Contractor's own risk and responsibility. Work may proceed on equipment and materials when the drawing and data have been returned marked NO EXCEPTIONS NOTED; and when submittals have been returned marked EXCEPTIONS NOTED, provided the work is performed in accordance with the notations.

E. SUBMITTALS. Submittals shall verify compliance with the Contract Documents, and shall include drawings and descriptive information in sufficient detail to show the kind, size, arrangement, and the operation of component materials and devices; the external connections, anchorages, and supports required; the performance characteristics and dimensions needed for installation and correlation with other materials and equipment. When an item consists of components from several sources, Contractor shall submit a complete initial submittal including all components.

CORRESPONDENCE. Correspondence between the Contractor and the Company shall be as follows:

All submittals shall be made to: PacifiCorp Energy 825 N.E. Multnomah, Suite 1500 Portland, OR 97232 Attention: Mr. Thomas Hickey 1. All submittals, regardless of origin, shall be stamped with the approval of Contractor

and identified with the name and number of this Contract, Contractor's name, and references to applicable specification paragraphs and Contract Drawings. Each submittal shall indicate the intended use of the item in the Work. When catalog pages are submitted, applicable items shall be clearly identified and inapplicable data crossed out. The current revision, issue number, and date shall be indicated on all drawings and other descriptive data.

2. Contractor shall be solely responsible for the completeness of each submission.



Contractor's submittals are a representation to Company and Engineer that Contractor accepts sole responsibility for determining and verifying all quantities, dimensions, field construction criteria, materials, catalog numbers, and similar data, and that Contractor has reviewed and coordinated each submittal with the requirements of the Work and the Contract Documents.

3. All deviations from the Contract Documents shall be identified as deviations on each submittal and shall be tabulated in Contractor's letter of transmittal. Such submittals shall, as pertinent to the deviation, indicate essential details of all changes proposed by Contractor (including modifications to other facilities that may be a result of the deviation).

4. Three copies of each drawing and the necessary data shall be submitted with one copy delivered to Company, and two copies submitted to Engineer. Company will return one marked copy to Contractor. Legible facsimile (fax) or electronic copies are acceptable. Company will not accept submittals from anyone but Contractor. Submittals shall be consecutively numbered in direct sequence of submittal and without division by subcontracts or trades.

5. Resubmittal of Drawings and Data.Contractor shall accept full responsibility for the completeness of each resubmittal. Contractor shall verify that all corrected data and additional information previously requested by Company are provided on the resubmittal. When corrected copies are resubmitted, Contractor shall in writing direct specific attention to all revisions and shall list separately any revisions made other than those called for by Company on previous submissions.

Requirements specified for initial submittals shall also apply to resubmittals. Resubmittals shall bear the number of the first submittal followed by a letter (A, B, etc.) to indicate the sequence of the resubmittal.

Resubmittals shall be made within 7 days of the date of the letter returning the material to be modified or corrected.

Any need for more than one resubmission, or any other delay in obtaining Company’s review of submittals, will not entitle Contractor to extension of the Contract Times unless delay of the Work is directly caused by a change in the Work authorized by a Change Order or by failure of Company to review any submittal within the submittal review period specified herein and to return the submittal to Contractor.

F. LAYOUT DATA. Contractor shall keep neat and legible notes of measurements and calculations made in connection with the layout of Work. Copies of such data shall be furnished to the Company for use in checking Contractor’s layout as provided in the Project Requirements section.



END OF SECTION

SECTION 01 35 00 SPECIAL PROJECT PROCEDURES

PART 1 – GENERAL

1.1 SUMMARY

A. PROTECTION OF EXISTING STRUCTURES. Unless otherwise specified or indicated, the Contractor shall take all necessary precautions to protect existing structures. Contractor shall provide all shoring, bracing, supports, and protective devices necessary to safeguard all existing structures during demolition and installation work.

B. LINES AND GRADES. All Work shall be done to the lines, grades, and elevations indicated on the Drawings.

Basic horizontal and vertical control points will be established or designated by Company to be used as datums for the Work. All additional survey, layout, and measurement work shall be performed by the Contractor as a part of the Work.

The Contractor shall provide an experienced instrument person, competent assistants, and such instruments, tools, stakes, and other materials required to complete the survey, layout, and measurement work. In addition, the Contractor shall furnish competent persons and such tools, stakes, and other materials as the Company may require in establishing or designating control points or in checking survey, layout, and measurement work performed by the Contractor.

The Contractor shall remove and reconstruct work which is improperly located.

C. UNFAVORABLE CONSTRUCTION CONDITIONS. During unfavorable weather, wet ground, or other unsuitable construction conditions, the Contractor shall confine its operations to work which will not be affected adversely by such conditions. No portion of the Work shall be constructed under conditions which would adversely affect the quality or efficiency thereof, unless special means or precautions are taken by the Contractor to perform the Work in a proper and satisfactory manner.

D. FISH AND WILDLIFE HABITAT. The requirements of local, state, and federal agencies charged with wildlife and fish protection shall be adhered to by the entire construction work force.

E. NOISE CONTROL 1. Comply with all local controls and noise level rules, regulations and ordinances. 2. Each internal combustion engine used on the job, or related to the job, shall be

equipped with a muffler of a type recommended by the manufacturer. No internal combustion engine shall be operated on the project without said muffler.

3. Noise levels for scrapers, pavers, graders, backhoes and trucks shall not exceed 90 dBA. For other equipment, noise levels shall not exceed 85 dBA. Equipment that cannot meet these levels shall be quieted by use of improved exhaust mufflers, noise attenuation barriers or other means approved by the Project Manager.

4. If special circumstances or emergency conditions require work beyond the hours as specified, the Contractor shall:


a. Notify the Project Manager 72 hours in advance of any proposed extended work hours for preauthorization. The Contractor’s written request shall specify the work to be performed and the circumstances that warrant the request. The request shall include any additional measures to mitigate noise generated by this construction activity, if deemed necessary by the Project Manager.

b. If an emergency situation occurs that warrants extended hours, the Contractor shall notify the Project Manager immediately upon determining the need for this work.

F. TREE AND PLANT PROTECTION 1. The Contractor shall minimize vegetation removal during construction operations. 2. The Contractor shall protect all existing ornamental landscaping and trees from

damage by construction activities. Work areas shall be carefully located and marked to reduce potential damage. Trees shall not be used as anchors for stabilizing working equipment. Work performed adjacent to ornamental landscaping and trees shall include protecting each tree or ornamental with a high visibility perimeter barrier fence. The barrier fence shall be an orange snow fence or approved equal. The Contractor shall not remove any ornamental landscaping or trees without written approval from Project Manager.

3. Where existing vegetation or landscaped areas have been removed or disturbed by the Contractor’s operations, the site shall be re-graded and restored by the Contractor as soon as practicable, with no additional cost to the Company.

4. If ornamental landscaping or trees are damaged or destroyed by the Contractor’s operations without prior authorization by the Project Manager, the Contractor shall replace the ornamental landscaping or tree in species, size and grade to the satisfaction of the Project Manager, at no cost to the Company. The Contractor shall maintain the replacement ornamental landscaping for a period of 8 weeks, and replacement trees for a period of one year, to assure a satisfactory replacement. Replacement ornamental plantings or trees that are dead or dying, as determined by the Project Manager, at the end of the 8 week or one year establishment period shall be replaced by the Contractor to the satisfaction of the Project Manager and at no cost to the Company. Should it not be practical to replace the ornamental landscaping or tree, the Contractor shall pay damages in accordance with requirements of the Project Manager. In the event the Contractor does not perform this replacement work in a timely manner as determined by the Project Manager, the Project Manager reserves the right to have the work performed by others. The expense of replacing ornamental landscaping or trees will be charged against the Contractor and the cost withheld from Contractor’s payments.

G. ADDITIONAL TREE PROTECTION 1. A critical root zone (CRZ) shall be established for all trees on-site that need

protection. The CRZ shall be the area between the tree trunk and a surrounding protective barrier fence.

The protective barrier fence shall be placed at a minimum distance of the dripline for broad-crowned trees (usually deciduous) and 1.5 times the dripline for narrow- crowned trees (usually conifers). For asymmetrical crowns, the dripline shall be determined at the crown’s widest point. The Project Manager shall have the discretion to require fencing to be placed at a distance of a 1-1.5’ radius for each inch of tree diameter at 4.5’ (diameter breast height) if he/she feels that the dripline does not provide adequate protection. Regardless of diameter, fencing shall be placed at a minimum of 6’ from the trunk of a tree. No disturbance of any kind shall take place within the fenced area (CRZ). Fencing shall not be removed or relocated



without approval from Project Manager. 2. When roots greater than 2” diameter are exposed, root pruning with a saw shall take

place under the supervision of the Project Manager. 3. When tree removals are required, stumps shall be ground rather than pulled when

roots are intertwined with the root systems of adjacent trees. Stumps may be pulled when there is no danger of interfering with the roots of adjacent trees.

4. The Project Manager may request that a 6-10” layer of mulch be applied over the critical root zones of trees on site before any construction activity begins to help reduce soil compaction. Following construction, the mulch shall be reduced to a depth of 4”. The Project Manager may also request travel lanes for heavy equipment.

5. Contractor shall monitor tree health throughout the construction process and notify Project Manager immediately of any damages to trees as a result of construction activities.



END OF SECTION

SECTION 01 36 00 SPECIAL HISTORIC PROCEDURES

PART 1 – GENERAL

1.1 SPECIAL HISTORIC PROCEDURES

A. The Contractor is required to protect historic structures as identified by the Company on this project.

B. The Contractor shall maintain a temporary barrier that surrounds historic buildings at all times. The barrier shall be set a minimum of 10 feet from the exterior façade of the building. The Contractor shall install signs notifying the public that access is denied into the construction area.

1.2 FEDERAL PROTECTION FOR HISTORIC FACILITIES

A. Attention is directed to the National Historic Preservation Act of 1966 and 36 CFR 800, which provide for the preservation of potential historical, architectural, archaeological or cultural resources (hereinafter "cultural resources").

B. The Project Manager intends to conform to the applicable requirements of the National Historic Preservation Act of 1966 as it relates to the preservation of cultural resources and fair compensation to the Contractor for delays resulting from such cultural resources investigations.

C. Monitoring: In the event potential cultural resources are uncovered during subsurface excavations at the worksite, the following procedures will be instituted:

1. Project Manager will issue a verbal work suspension directing the Contractor to cease all construction operations at the location of a potential cultural resources discovered. Project Manager will contact a professional archaeologist to evaluate the significance of the find. A written work suspension order will be issued within four hours of the verbal work suspension order.

2. Such work suspension will be effective until such time as the qualified archaeologist can evaluate the potential cultural resources for their significance and make recommendations to the State Historic Preservation Officer. Any work suspension direction will contain the following:

a. A clear description of the work to be suspended. b. Any instructions regarding issuance of further orders by the

Contractor for material services. c. Specific direction to the Contractor to minimize the work suspension costs

(i.e., work elsewhere while archaeologist is evaluating find). d. Estimated duration of the temporary suspension.

3. If the archaeologist determines the cultural resource is eligible to be nominated to the National Register of Historic Places, Project Manager may extend the duration of the work suspension order in writing.

4. Equitable adjustment of the construction Contract time will be made for temporarily suspended work in accordance with the General Conditions.


1.3 FINES

A. Contractor shall be responsible for all fines incurred from non-compliance with regulations of governing authorities.

PART 2 – MATERIALS

2.1 MATERIALS

A. Review all temporary protection work on Site with Project Manager prior to proceeding.

B. Use materials for temporary protection that will not mar, stain, and physically or chemically damage or alter historic features or finishes. Obtain Project Manager’s approval before implementing temporary protection measures.

C. Submit plan describing all temporary protection procedures for Project Manager approval. Include the following information:

PART 3 – EXECUTION

3.1 INSPECTION FOR TEMPORARY PROTECTION OF HISTORIC FABRIC

A. Review all temporary protection work on Site with Project Manager prior to proceeding.

END OF SECTION


SECTION 01 42 00 REFERENCE STANDARDS

PART 1 – GENERAL

1.01 SUMMARY

A. APPLICABLE CODES. Standard codes which apply to the Work are designated in the Specifications.

Requirements of regulatory permits secured by the Company for this project and Contractor furnished permits will be executed and enforced by the Company and Contractor, including the following:

Company Furnished Permits and Approvals. - Federal Energy Regulatory Commission approval. Contractor Furnished Permits. - Local construction permits as required. - Highway trip permits as required

B. REFERENCE STANDARDS. Reference to standards, specifications, manuals, or codes of any technical society, organization, or association, or to the laws or regulations of any governmental authority, whether such reference be specific or by implication, shall mean the latest standard specification, manual, code, or laws or regulations in effect at the time of opening of Bids (or on the Effective Date of the Agreement if there were no Bids), except as may be otherwise specifically stated. However, no provision of any referenced standard, specification, manual, or code (whether or not specifically incorporated by reference in the Contract Documents) shall be effective to change the duties and responsibilities of the Company, Contractor, or Engineer, or any of their Consultants, agents, or employees from those set forth in the Contract Documents, nor shall it be effective to assign to the Engineer, or any of the Engineer's Consultants, agents, or employees, any duty or authority to supervise or direct the furnishing or performance of the Work.

C. ADDITIONAL REFERENCED STANDARDS:

All Work shall conform to the issue of following referenced standards which is current at date of receipt of bids. Whenever the following abbreviations are used in these Contract Documents, they are to be construed the same as follows: AA -- Aluminum Association AASHTO -- American Association of State Highway and Transportation Officials ACI -- American Concrete Institute ACM -- American Construction Manual AISC -- American Institute of Steel Construction APA -- American Plywood Association APWA -- American Public Works Association ASTM -- American Society for Testing and Materials AWPA -- American Wood Preservers' Association AWS -- American Welding Society AWWA -- American Water Works Association NEC -- National Electric Code (Oregon Amended)



WSHDOT -- Washington Standard Specifications for Highway Construction by the Washington Dept. of Transportation

APWA -- Standard Specifications for Construction by the Washington Department of Transportation and Washington Chapter of APWA

OSHA -- Occupational Safety and Health Administration QPL -- Qualified Products Listing by the Washington Department of

Transportation, Materials and Research Section UBC -- Uniform Building Code State of Oregon, Structural Specialty Code

Amended UPC -- Uniform Plumbing Code State of Washington, Plumbing Specialty Code WCLIB -- West Coast Lumber Inspection Bureau



END OF SECTION

SECTION 01 45 00 QUALITY CONTROL

PART 1 – GENERAL

1.1 SUMMARY

A. TESTING SERVICES. Field control testing services will be provided by the Contractor with all results provided to the Company via the Company’s authorized representative. Testing necessary to satisfy Contractor's internal quality control procedures and to control the work shall also be the responsibility of Contractor.

All material tests to determine compliance with the Contract Documents shall be performed by an independent commercial testing firm acceptable to the Company, and shall be furnished by Contractor to Company for approval. Testing firm's laboratory shall be staffed with experienced technicians, properly equipped and fully qualified to perform the tests in accordance with the specified standards. 1. Testing Services Furnished by Contractor. Unless otherwise specified, Contractor shall

provide all testing services to show material and fabrication compliance with the specifications in connection with the following:

• Concrete materials and mix designs. • All other tests and engineering data required for Company’s review of

materials proposed to be used in the Work.

Contractor shall obtain Company's acceptance of the testing firm before having services performed, and Contractor shall pay all costs for these testing services.

2. Field Control Testing Services Furnished by Company. The Company may perform testing at its own expense to monitor performance of the work. Unless otherwise specified, Company shall provide professional inspection services for concrete, soil, general construction, and environmental monitoring.

Testing, including sampling, will be performed by Company, or the testing firm's laboratory personnel, in the general manner indicated in the Specifications. Company shall determine the exact time, location, and number of tests, including samples. Arrangements for delivery of samples and test specimens to the testing firm's laboratory will be made by Company. Testing firm's laboratory shall perform all laboratory tests within a reasonable time consistent with the specified standards and shall furnish a written report of each test.

Contractor shall furnish all sample materials and cooperate in the testing activities, including sampling. Contractor shall interrupt the Work when necessary to allow testing, including sampling, to be performed. Contractor shall have no claim for an increase in Contract Price or Contract Times due to such interruption. When testing activities, including sampling, are performed in the field by Company or testing firm's laboratory personnel, Contractor shall furnish personnel and facilities to assist in the activities.

3 Transmittal of Test Reports. Written reports of tests and engineering data furnished by



Contractor for Company’s review of materials and equipment proposed to be used in the Work shall be submitted as specified for Shop Drawings.



END OF SECTION

SECTION 01 51 00 TEMPORARY UTILITIES

PART 1 – GENERAL

1.1 TEMPORARY UTILITIES

A. Connections to existing utilities (electric, water, sewer, telephone service) may be allowed as approved by the Project Manager. Contractor to make arrangements for connections. Contractor to pay for cost of connection and use. Exercise measures to conserve energy and water.

B. Provide toilet and wash-up facilities for the work force at the site. Comply with applicable laws, ordinances and regulations pertaining to public health and sanitation.



END OF SECTION


SECTION 01 52 00 CONSTRUCTION FACILITIES

PART 1 – GENERAL

1.1 SUMMARY

A. OFFICE AT SITE OF WORK. During the performance of this Contract, the Contractor shall maintain a suitable office at or near the site of the Work which shall be the headquarters of its representative authorized to receive drawings, instructions, or other communication or articles. This same office shall house the Construction Manager, Resident Inspector for the Company. Any communication given to the said Contractor representative or delivered at the Contractor's office at the site of the Work in its absence shall be deemed to have been delivered to Contractor.

Copies of the Drawings, Specifications, and other Contract Documents shall be kept at the Contractor's office at the site of the Work and available for use at all times. 1. WATER. All water required for and in connection with the Work to be performed

shall be provided by and at the expense of Contractor.

2. POWER. Contractor shall provide all power for heating, lighting, operation of Contractor's plant or equipment, or for any other use by Contractor.

3. TELEPHONE SERVICE. Contractor shall make all necessary arrangements and pay all installation charges for telephone lines in its offices at the site and shall provide all telephone instruments.

4. SANITARY FACILITIES. Contractor shall furnish temporary sanitary facilities at the site, as provided herein, for the needs of all construction workers and others performing work or furnishing services on the Project.

Sanitary facilities shall be of reasonable capacity, properly maintained throughout the construction period, and obscured from public view to the greatest practical extent. If toilets of the chemically treated type are used, at least one toilet will be furnished for each 20 persons. Contractor shall enforce the use of such sanitary facilities by all personnel at the site.


PART 3 – EXECUTION (not applicable) END OF SECTION


SECTION 01 53 00 TEMPORARY CONSTRUCTION

PART 1 - GENERAL

1.1 SUMMARY

A. This specification covers temporary facilities that the Contractor will need to construct to complete the work. This may include, but is not limited to, temporary structures such as an access bridge over the flowline, an equipment pad for tunnel activities, tailwater cofferdam for a dry work area, and retaining walls.

1.2 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions, apply to this Section.

B. Related Sections include the following: 1. Division 01 – General Conditions 2. Section 01 55 13 – Temporary Access Roads 3. Section 02 41 00 – Demolition and Deconstruction 4. Section 31 00 00 – Earthwork

1.3 DEFINITIONS

A. Temporary construction is defined as temporary works intended to support live or dead gravity loads, hydrostatic loads, earth loads, or wind loads necessary to complete the work.

1.4 SUBMITTALS

A. Contractor will be required to submit design drawings and structural calculations for any and all temporary construction called for in the deconstruction/demolition plan or used to complete the work.

B. A tailwater cofferdam may be needed to maintain a dry work area. If a tailwater cofferdam is proposed, the Contractor will develop a detailed Tailwater Cofferdam Construction and Removal Plan for review and approval by the Company. The Plan needs to also address dewatering that is proposed for the cofferdam. The approved Plan must also be submitted to FERC PRO for subsequent approval. Allow at least 60 days for FERC review.

C. A Temporary Construction Emergency Action Plan (TCEAP) is required where construction workers or the public would be endangered from failure of a temporary or permanent cofferdam or large sediment control structure. The Contractor will prepare a TCEAP for review and approval by the Company. The approved Plan must also be submitted to FERC PRO for subsequent approval. Allow at least 60 days for FERC review.



1.5 PROJECT CONDITIONS

A. Contractor shall become familiar with the existing site conditions and proposed temporary construction areas through site visits, as well as drawings, records, maps, and available photographs. The site consists of rough terrain including deep gullies and steep slopes.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Contractor shall provide materials suitable to complete the work.

PART 3 - EXECUTION

3.1 PERFORMANCE REQUIREMENTS

A. General Performance: The methods, means, and equipment required to complete the work shall be the responsibility of the Contractor.

B. The Contractor is responsible for designing, building, and maintaining temporary facilities.

C. The Contractor shall provide for the collection and disposal of surface and groundwater encountered during construction.

D. Contractor shall provide structures capable of accessing and completing the work area in a safe manner.

E. Temporary structures shall be able to withstand the effects of loads and stresses of its intended purpose.

3.2 CLEANUP

A. All temporary facilities shall be removed by the Contractor after their function is complete. All disturbed areas shall be returned to their original contour and condition.

END OF SECTION

SECTION 01 55 13 TEMPORARY ACCESS ROADS

PART 1 - GENERAL

1.1 SUMMARY

A. General: The methods, means, and equipment required to access the construction areas shall be the responsibility of the Contractor. The Contractor shall become familiar with the existing site conditions, structures, proposed access roads, and staging and storage areas through site visits; as well as drawings, records, maps, and available photographs. Develop a plan for personnel and equipment access, including staging and lay-down areas.

B. Section Includes: Contractor shall establish and maintain temporary access roads within Company property boundaries as required, including cross drainage, to complete the project. Disturbance to wetland areas and White Salmon River shall be kept to a minimum. Contractor shall conduct its work to interfere as little as possible with public roads. Contractor shall provide and maintain suitable and safe detours, or other temporary expedients, for the accommodation of public and private travel. Contractor shall restore public roads to a condition equal to or exceeding their original condition.

C. The alignment and profiles provided in the plan are for information purposes and general guidance only. The constructed location of the access roads is at the discretion of the Contractor. If the Contractor proposes to construct access roads outside of the areas identified in the drawings, proposed routes shall be submitted to the Company. Do no begin access road construction until written notice to proceed is received from the Company.


A. Drawings and general provisions of the Contract, including General and Supplementary Conditions, apply to this section.

B. Related Sections include the following: 1. Division 01 – General Conditions 2. Section 31 00 00 – Earthwork 3. Section 31 11 00 – Clearing and Grubbing

1.3 REFERENCES

A. Dust Control Plan

B. Public Safety and Traffic Control Plan


1.4 SUBMITTALS

A. General: 1. Access Road Locations and Grading Plan 2. Staging and Storage Areas Locations and Grading Plan 3. Temporary Facility Details

1.5 PROJECT CONDITIONS

A. Access roads will transverse rough terrain including deep gullies and will be required to cross over the existing flowline.

1.6 DUST AND DEBRIS CONTROL

A. Prevent the spread of dust and debris and avoid the creation of a nuisance or hazard in the surrounding area in accordance with the Dust Control Plan.

PART 2 - PRODUCTS

2.1 MATERIALS

A. The Contractor shall provide materials sufficient to meet Section 3.2 of this specification.

PART 3 - EXECUTION

3.1 TRAFFIC

A. Contractor shall conduct work to interfere as little as possible with public travel and comply with the conditions of the Public Safety and Traffic Control Plan.


A. Performance 1. Access roads shall withstand the effects of hauling equipment, materials, personnel,

and all traffic as required to complete the work.

2. Contractor shall protect, shore, brace, support, and maintain all underground pipes, drains, utilities, and other underground construction uncovered or otherwise affected by construction operations. All pavements, streets ,roads, highways, parking areas, ditches, embankments, bridges, surfaces, driveway, buildings, utility poles, guy wires, fences and other surface structures, public or private affected by construction operations, shall be restored to their original conditions. All replacements shall be made with new materials.

3. Contractor shall make satisfactory and acceptable arrangements with the



Company, or authority having jurisdiction over, the damaged property concerning its repair or replacement or payment of costs incurred in connection with the damage.

3.3 CLEANUP

A. After completion of work, completely remove access roads and restore site conditions and public roadways to preconstruction conditions.

END OF SECTION

SECTION 01 56 00 TEMPORARY BARRIERS AND ENCLOSURES

PART 1 – GENERAL

1.1 DESCRIPTION

A. All requirements of the Public Safety and Traffic Control Plan will be adhered to during the construction and de-construction aspects and time period of this project.

B. This work consists of furnishing, erecting, and maintaining temporary barricades, signs, and other traffic control devices, and provision of temporary roadways, detours, and other safeguards necessary for orderly flow of traffic during performance of the work.

PART 2 - MATERIALS

2.1 SUBMITTALS A. The Contractor shall develop and provide to the Project Manager, at least seven (7) calendar

days in advance of the time the traffic control will be required or haul routes employed, an addendum to the traffic control portion of the Public Safety and Traffic Control Plan which will, as a minimum: 1. Conform with the current edition of the Manual on Uniform Traffic Control Devices

(MUTCD), as published by the U.S. Department of Transportation – Federal Highway Administration; the Washington Supplements to the MUTCD as published by the State of Washington Department of Transportation; and as approved by the Project Manager.

2. Annotate proposed location of barricades, lighting, signing, temporary striping and other traffic control devices.

3. Provide emergency exits from buildings within and immediately adjacent to the construction site.

4. Maintain emergency access; access to public service buildings shall be provided at all times. If driveway or mail access is to be restricted, notice shall be given to the Project Manager seven (7) calendar days prior to the date of the restriction.

5. Provide public service buildings, safe and acceptable driveway access during their operating hours.

6. Provide Road Closure Plans. 7. Provide Detour Route Plans for local access. 8. Channel traffic flow through the work zone per Public Safety and Traffic Control

Plan. 9. Ensure the addendum addresses all modes of transportation, including vehicles,

bicycles, pedestrians, transit, and adjacent property access. 10. Ensure the addendum shows pertinent roadway features that will be

obstructed by construction activity, such as fire hydrants. 11. Any special traffic control associated with school bus routing must be reviewed

and approved by the Project Manager.

2.2 REQUIREMENTS

A. The Public Safety and Traffic Control Plan addendum must be approved in writing by the Project Manager before any work commences.



B. The Project Manager shall approve all temporary public service building signs. Portable changeable message signs (PCMS) are not permitted for public service buildings.

C. Emergency vehicle, pedestrian and bicycle access shall be maintained at all times.

D. Vehicular and pedestrian routing on streets where the work is not being performed shall not be revised without approval of by the Project Manager.

2.3 COORDINATION

A. The Contractor shall coordinate all construction to offer the least possible obstruction and inconvenience to the public. The Contractor shall have under construction no greater length or amount of work than can be executed properly with due regards to the rights of the public.

B. The Contractor shall coordinate all revisions to the existing Public Safety and Traffic Control Plan with the Project Manager. Traffic controls are to remain in operation unless determined to be unnecessary and confusing under the approved Plan. As work progresses, and as conditions permit, relocated or removed traffic and street name signs shall be reset by the Contractor with new signs in their permanent locations. All damaged or lost traffic control devices shall be replaced by the Contractor at the Contractor’s expense.

2.4 NOTIFICATIONS

A. Written approval of the Public Safety and Traffic Control Plan addendum shall be obtained from the Project Manager prior to initiating work.

B. Written approval shall be obtained from the Project Manager before scheduling closure of any street. The notification shall give the time of commencement and completion of the work, names of streets to be closed, schedule of operation, routes of detours.

C. To accommodate emergency vehicle rerouting, notification shall be given to Project Manager in writing, not less than 72 hours prior to construction operations that modify existing traffic flow conditions.

2.5 SPECIAL SIGNS

A. Signs with special or non-standard messages may be necessary to properly convey information to the motorist or pedestrian. The Contractor shall be responsible for installing and maintaining these signs.

PART 3 – EXECUTION (NOT APPLICABLE)

END OF SECTION

SECTION 01 57 13 TEMPORARY SEDIMENT AND EROSION CONTROL

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: 1. Installation of temporary sediment and erosion control measures during decommissioning

where shown on Drawings, or as required to accommodate planned demolition, access road construction, rubble burial, or new work.

B. Related Sections include but are not necessarily limited to: 1. Division 1 - General Requirements. 2. Division 31 – Earthwork:

a. Section 31 22 00 Grading. 3. Division 32 – Exterior Improvements:

a. Section 32 90 00 - Planting Preparation.

C. Related Management Plans: 1. Sediment Assessment, Stabilization, and Management Plan 2. Revegetation and Wetlands Management Plan 3. Erosion Control Plan

D. Project Removal Design Report 1. All construction and decommissioning work will be guided by the schedule and details

supplied in the Project Removal Design Report prepared for this project.

1.2 SUBMITTALS

A. Updated Erosion Control Plan: 1. Contractor to update Erosion Control Plan showing means and methods to be used.

B. Indicating manufacture and type of: 1. Erosion Control Products.

1.3 DELIVERY, STORAGE, AND HANDLING

A. General: 1. Salvage items, designated for the Company's salvage, as a functional unit. 2. Clean, list and tag for storage. 3. Protect from damage and deliver to location designated. 4. Salvage each item with auxiliary or associated equipment required for operation.

1.4 SITE CONDITIONS

A. Perform preliminary investigations as required to ascertain extent of work.


1.5 SEQUENCING AND SCHEDULING

A. Coordinate and reschedule work as required to preclude interference with other operations.

1.6 ENVIRONMENTAL REQUIREMENTS

A. The Contractor shall protect adjacent properties and water resources (either prior to dam breaching or those waters unaffected by breaching) from erosion and sediment impact throughout the life of the contract in adherence to the Erosion Control Plan prepared for this project.

B. The Contractor will designate by name a State of Washington Certified Erosion Control Inspector.

C. Inspection of the Project work site will be carried in accordance with the State of Washington guidelines and as referenced in the Erosion Control Plan prepared for this project.

PART 2 - PRODUCTS

2.1 ACCEPTABLE MANUFACTURERS

A. Subject to compliance with the Contract Documents, the following guidelines are to be adhered to in product selection by the Contractor: 1. Materials are to be rated as lasting for the length of the project or as

required to accomplish their intended use. 2. Plantings will be made using certified seed and nursery stock.

B. Submit request for substitution in accordance with Specification Section 01 26 00.

2.2 MATERIALS

A. Adapted and quick growing grasses for temporary seeding (see seed mixes contained in Revegetation and Wetlands Management Plan).

B. Hay or straw bales (must meet State of Washington requirements for control of noxious weeds).

C. Fencing or siltation control as noted on Erosion Control Layout Sheets.

D. Bale and fence stakes adequate to meet the requirements of the project.

E. Temporary mulches.

F. Silt bags, straw rolls or other barriers approved for inlet protection.

G. A wheel wash and stabilized construction entrance will be constructed as required.

H. Riprap as required.

I. Wood hydromulch (product chosen by Contractor must meet functional requirements


of the Project).

J. Dust control products (must meet State of Washington environmental requirements).

PART 3 –EXECUTION

3.1 PREPARATION

A. Local and State Agency Requirements 1. The Contractor shall carry out all erosion and sediment control activities in

accordance with all local and state agency requirements. 2. The Contractor shall be required to obtain all pertinent stormwater and pollution

control permits

B. The Contractor shall review the Erosion Control Plan.

C. Deficiencies or changes in the Erosion Control Plan as it is applied to conditions at the Project site will be brought to attention of the Project Manager for correction.

3.2 IMPLEMENTATION OF EROSION AND SEDIMENT CONTROL MEASURES

A. Provide material data sheets, manufacturer’s catalog specifications, and data regarding the proposed erosion control products which will be used during construction for review by the Company.

B. Provide data regarding the installation of the erosion and sedimentation control materials and methods for review by the Company.

C. Place erosion and sediment control program in adherence with the Erosion Control Plan prepared for this project.

D. The Project Manager has the authority to limit the area of exposed soil. The Company retains the authority to direct the Contractor to install permanent or temporary pollution control measures.

E. The Contractor is required to install permanent erosion control measure at the earliest practical opportunity prior to the commencement of construction activities.

F. Exposed soil surfaces will be permanently seeded and mulched as the work proceeds to the extent considered practical and desirable.

G. The erosion control measures installed by the Contractor will be maintained for the Contract and as directed by the Project Manager. The Contractor must respond to any deficiencies noted by the Project Manager within 24 hours.

H. Any additional material work required beyond the extent of the Erosion Control Plan shall be paid for by the Company except where such work is required to correct negligence or deficiencies caused by the failure of the contractor to install the required erosion control measures in accordance with the Erosion Control Plan prepared for this project.

I. Clean Up: 1. Transport debris and legally dispose of off site.



3.3 WORK AREAS FOR EROSION AND SEDIMENT CONTROL MEASURES

A. The following areas as identified on the Drawings are subject to the installation of the erosioncontrol measures described in the Erosion Control Plan prepared for this Project: 1. Areas for construction staging and mobilization. 2.Areas for the construction of temporary access roads. 3. Areas along permanent roads. 4. Areas impacted by the removal of the flowline, surge tank and other appurtenances of

the Condit dam. 5. Areas disturbed by the reconstruction and replacement of:

a. The Northwestern Lake Bridge. 6. All areas used for the establishment of concrete disposal. 7. Construction of the water level drain tunnel through the dam. 8. The area of the powerhouse tailrace. 9. All other areas as identified by the Project Manager as requiring erosion and sediment

control.

3.4 INSPECTION OF EROSION AND SEDIMENTATION CONTROL MEASURES

A. The Contractor will be responsible for assuring that all inspection and certification of erosion control measures are carried out in accordance with State of Washington requirements and the Erosion Control Plan. These responsibilities include: 1. Assuring and certifying the Contractor’s construction sequence is in conformance

with the specified schedule. 2. Inspection to be carried out on the project site to be carried out on a weekly

basis or within 24 hours of a significant rainfall (>0.50 inches/24-hours).

END OF SECTION

SECTION 01 57 24 SPILL PREVENTION, CONTROL, AND COUNTERMEASURE

PART 1 – GENERAL

1.1 SUMMARY

A. Section includes: 1. Installation of spill prevention, control, and countermeasures during

decommissioning. This specification applies to all site activities where the potential for hazardous spills can occur.

2. These specifications and all work performed by the Contractor shall adhere to the guidance of the Spill Prevention, Control, and Countermeasure Plan prepared for this Project.

B. Related Sections include but are not necessarily limited to: 1. Division 1 - General Requirements.

a. Section 01 57 24 – Spill Prevention, Control, and Countermeasures

C. Related Management Plans 1 . Erosion Control Plan 2 . Aquatic Resources Protection Plan

D. Project Removal Design Report 1. All construction and decommissioning work will be guided by the schedule and

details supplied in the Project Removal Design Report prepared for this project.

1.2 SUBMITTALS

A. Spill Prevention, Control and Countermeasure (SPCC) Plan: 1. Contractor will prepare a SPCC utilizing Best Management Practices (BMPs) that are

consistent with the Erosion Control Plan. The SPCC Plan will be submitted to the Company for review and approval. The approved Plan must also be submitted to the Washington Department of Ecology (Ecology) for subsequent approval. Allow at least 60 days for Ecology review.

B. Indicating manufacture and type of: 1. Spill Control Products.


A. General: 1. Salvage items, designated for Company's salvage, as a functional unit. 2. Clean, list and tag for storage. 3. Protect from damage and deliver to location designated. 4. Salvage each item with auxiliary or associated equipment required for operation.

1.4 SITE CONDITIONS






A. The Contractor shall protect adjacent properties and water resources (either prior to dam breaching or those waters unaffected by breaching) from spills throughout the life of the contract in adherence to the Spill Prevention, Control, and Countermeasures Plan prepared for this Project.

B. All materials applied for spill control will adhere to the State of Washington environmental guidelines and regulations for spill control and reporting.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Spill control products will be those prescribed in the Spill Prevention, Control, and Countermeasures Plan prepared for this Project.

PART 3 –EXECUTION

3.1 PREPARATION

A. Local and State Agency Requirements 1. The Contractor shall carry out all spill control activities in accordance with all

local and state agency requirements. 2. The Contractor shall be required to obtain all pertinent stormwater and

pollution control permits.

B. The Contractor shall review the Spill Prevention, Control, and Countermeasures Control Plan attached to this section of the specifications.

C. Deficiencies or changes in the spill control plan as it is applied to conditions at the Project site will be brought to attention of the Project Manager for correction.

3.2 IMPLEMENTATION OF SPILL CONTROL MEASURES

A. Spill control methods will be those prescribed in the Spill Prevention, Control, and Countermeasures Plan prepared for this Project.

3.3 INSPECTION OF SPILL CONTROL MEASURES

A. The Contractor will be responsible for assuring that all inspection and certification of spill control measures are carried out in accordance with State of Washington



requirements. These responsibilities include: 1. Assuring and certifying the Contractor’s construction sequence is in

conformance with the specified schedule. 2. Providing completed inspection checklists to the Project Manager.

END OF SECTION

SECTION 01 57 25 DUST CONTROL

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: 1. Installation of dust control measures during decommissioning. This specification

applies to all site activities where the potential for dust generation can occur. 2. These specifications and all work performed by the Contractor shall adhere

to the guidance of the Dust Control Plan prepared for this Project.


a. Section 01 57 13 – Temporary Sediment and Erosion Control

C. Related Management Plans 1 . Erosion Control Plan 2 . Revegetation and Wetlands Management Plan



1.2 SUBMITTALS

A . Shop Drawings: 1. See Section 01 33 00 for requirements for the mechanics and administration of the

submittal process.

B . Indicating manufacture and type of: 1. Dust Control Products.


A. General: 1. Salvage items, designated for Company's salvage, as a functional unit. 2. Clean, list and tag for storage. 3. Protect from damage and deliver to location designated. 4. Salvage each item with auxiliary or associated equipment required for operation.

1.4 SITE CONDITIONS







A. The Contractor shall protect adjacent properties and water resources (either prior to dam breaching or those waters unaffected by breaching) from dust impact throughout the life of the contract in adherence to the Dust Control Plan prepared for this project.

B. All materials applied for dust control will adhere to the State of Washington environmental guidelines for dust control. In no instance will petroleum byproducts be used for dust control on roads or other surfaces.

PART 2 – PRODUCTS

2.1 MATERIALS

A. Dust control products will be those prescribed in the Dust Control Plan prepared for this Project.

PART 3 - EXECUTION

3.1 PREPARATION

A. Local and State Agency Requirements 1. The Contractor shall carry out all dust control activities in accordance with all

local and state agency requirements. 2. The Contractor shall be required to obtain all pertinent stormwater and pollution

control permits.

B. The Contractor shall review the Dust Control Plan attached to this section of the specifications.

C. Deficiencies or changes in the dust control plan as it is applied to conditions at the Project site will be brought to attention of the Project Manager for correction.

3.2 IMPLEMENTATION OF DUST CONTROL MEASURES

A. Dust control methods will be those prescribed in the Dust Control Plan prepared for this Project.

3.3 INSPECTION OF DUST CONTROL MEASURES

A. The Contractor will be responsible for assuring that all inspection and certification of dust control measures are carried out in accordance with State of Washington requirements. These responsibilities include: 1. Assuring and certifying the Contractor’s construction sequence is in conformance

with the specified schedule. 2. Providing completed inspection checklists to the Project Manager.

END OF SECTION

SECTION 01 57 26 AQUATIC RESOURCES PROTECTION

PART 1 – GENERAL

1.1 SUMMARY

A. Section Includes: 1. Installation of aquatic protection measures on the White Salmon River, the Big

White Salmon Ponds Facility, and the Spring Creek National Fish Hatchery. 2. Protection of Big White Salmon Ponds Facility water intake. 3. Cleaning or dredging of Spring Creek Fish National Fish Hatchery and Big

White Salmon Ponds. 4. Monitoring for observance of dead or injured fish and evidence of Western

Pond Turtles. 5. These specifications and all work performed by the Contractor shall adhere to

the guidance of the Aquatic Resources Protection Plan prepared for this Project.


a. Section 01 57 13 – Temporary Erosion and Sediment Control. b. Section 01 57 27 – Sediment Assessment and Stabilization. c. Section 01 57 28 – Woody Debris Management.

C. Related Management Plans: 6. Sediment Assessment, Stabilization, and Management Plan 7. Woody Debris Management Plan 8. Erosion Control Plan



1.2 SUBMITTALS

A. Shop Drawings: 1. See Section 01 33 00 for requirements for the mechanics and administration

of the submittal process. 2. Indicating manufacturer and type of:

a. Hydraulic equipment proposed for in-water work.




1.4 SITE CONDITIONS



A. Coordinate and schedule work as required to preclude interference with other operations.


A. The Contractor shall protect adjacent properties and water resources (either prior to dam breaching or those waters unaffected by breaching) from aquatic protection impacts throughout the life of the contract in adherence to the Aquatic Resources Protection Plan prepared for this project.

B. The Contractor shall adhere to all terms and conditions of all local, state, and federal permits issued for the completion of this Project.

PART 2 – PERMITS PRODUCTS

2.1 ACCEPTABLE MANUFACTURERS

A. Subject to compliance with the Contract Documents, products for use in protection of aquaticfacilities must meet the following requirements: 1. Materials are to be rated as lasting for the length of the project or as

required to accomplish their intended use. 2. Materials must be non-toxic to aquatic organisms.

2.2 MATERIALS

A. Intake face cover: 1. Plywood or dimensional lumber: 1 IN minimum untreated; or, 2. Metal or high density plastic. 3. Hilti style anchor bolts or equivalent.

B. 30-inch supply line cap: 1. Band and sheet of thick Plastic; or, 2. Construction Foam.

PART 3 -EXECUTION

3.1 PREPARATION

A. Local and State Agency Requirements 1. The Contractor shall carry out all aquatic protection activities in accordance with all

local and state agency requirements. 2. The Contractor shall be required to obtain all pertinent stormwater and pollution

control permits.

B. The Contractor shall review Aquatic Resources Protection Plan attached to this section of the


specifications. C. Deficiencies or changes in the Aquatic Resources Protection Plan as it is applied to conditions

at the Project site will be brought to attention of the Project Manager for correction.

3.2 PROTECTION OF INTAKE STRUCTURE AND SUPPLY LINE

A. The following protective measures will be installed at the Big White Salmon Ponds facility: 1. Install one-inch untreated plywood or dimensional lumber to intake face with

concrete anchor bolts. 2. Cap 30-inch gravity fed supply line at the upstream end using a banded sheet of

thick plastic or construction foam.

B.If protection measures are required for greater than one year, wood should be inspected annually and replaced as necessary; or alternatively the use of two-inch thick lumber, steel plates, or sheets of

high density plastic may be used.

3.3 LOCATIONS FOR AQUATIC PROTECTION

A. The locations of existing structures, access roads, and work areas can be found on Plan Sheet CM- 1401.

B. The location of areas for aquatic protection, potential cleaning and dredging are the raceways, fish ladder entrance, smolt release outfall, and intake and supply line.

3.4 CLEANING AND DREDGING

A. If cleaning or dredging is necessary, removal of sediment will be performed by hand labor and/or heavy equipment.

B. Heavy equipment used must be rated for use in ecologically sensitive waters.

3.5 DISPOSAL OF MATERIAL

A.The sediment and debris cleared from the areas shall be completely removed and transported to an appropriate disposal area. In no case shall cleared material be thrown into or left in the creeks or

river.

3.6 MARKETABLE MATERIALS

A. Any of the cleared materials which the Contractor considers marketable shall become his property and shall be removed from the project area. 1. Transport debris and legally dispose of off site.

3.7 FISH PASSAGE MONITORING

A. The Contractor will be responsible for monitoring for fish passage. 1. Monitoring will commence in April, prior to the beginning of the summer

steelhead run. Following the initial passage survey in April, periodic surveys will be conducted once a month through September and after any high flow event that could potentially alter passage conditions (i.e., significant mobilization of sediment and wood).


2. Beginning in October (one year following breaching), passage surveys will only be conducted following high flow events, in order to capture passage conditions that may have changed.

3. Monitoring for passage conditions will occur in the mainstem White Salmon River and in mainstem tributaries that currently enter Northwestern Lake. Passage monitoring will extend on the mainstem White Salmon River from the mouth to approximately RM 5.5. The limit of the survey will extend upstream of the head of the former reservoir to account for potential headcut migration upstream of the reservoir.

B. The Contractor will be responsible for conducting barrier surveys according to protocols developed in the Aquatic Protection Plan. 1. The Contractor will conduct a preliminary survey to determine if there may be a

potential barrier. If a potential barrier observed based on this preliminary survey, then a detailed survey will be conducted to confirm if it is in fact a barrier and for which species and life- stage of the species of concern.

2. Monitoring will be performed by a team of individuals including at a minimum a fish biologist. The team will survey the entire project area and will be familiar with

access points and safe access techniques that may be needed for entry into isolated areas of the project area.

3. Preliminary Barrier Surveys a. The preliminary survey will use broad guidelines for passage criteria, as well

as professional judgment, to classify potential obstructions as passable, potential barrier, or not passable.

b. Sites classified as potential barriers will be further evaluated using the detailed survey method. Potential passage obstructions will be photographed and Global Positioning System (GPS) readings taken of their locations.

4. Detailed Barrier Survey a. Sites classified as potential barriers will be further evaluated using a detailed

survey that relies primarily on the methods described in Powers and Orsborn (1985), which outlines a process for evaluating different types of passage barriers.

5. Passage Correction a. The Contractor will correct confirmed passage barriers to re-establish

passage unless the obstruction is part of the natural geography of the riverbed.

b. Corrective actions will only be taken if the barrier is determined to be related to past project operations or decommissioning activities.

c. The following methods are available for addressing passage issues, given the suite of site conditions that may be encountered: 1) Heavy machinery (excavators, backhoes, dozers, etc.) can be

used to correct passage barriers in accessible areas. 2) Hand tools can potentially be used to correct passage obstructions

where other means are ineffective or in areas with difficult access. Chainsaws, hand winches, and non-mechanical hand tools may be effective in some cases where headcuts or debris jams are creating passage obstructions.

3.8 WESTERN POND TURTLE MANAGEMENT

A. The Contractor will be required do the following during the decommissioning period from summer through dam removal in subsequent fall and winter: 1. Educate project staff in identification of western pond turtles.



2. Establish reporting requirements if western pond turtles are observed. 3. Follow procedures for capture and safe relocation of any western pond turtles

that are observed in the reservoir.

3.9 GENERAL INSPECTION AND MONITORING

A. The Contractor will be responsible for assuring that all inspection and certification of aquatic protection measures are carried out in accordance with State of Washington requirements. These responsibilities include: 1. Assuring and certifying the Contractor’s construction sequence is in conformance

with the specified schedule. 2. Responsible for adhering to all the species impact assessment and monitoring

protocols described in the Aquatic Resources Protection Plan.

END OF SECTION

SECTION 01 57 27 SEDIMENT MANAGEMENT

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: 1. Assessment, grading and stabilization of reservoir sediments remaining in the bed

of the Northwestern Lake reservoir and along the former channel of the White Salmon in order to attain a stable surface residing at a safe angle of repose (typically 30 degrees).

2. These specifications and all work performed by the Contractor shall adhere to the guidance of the Sediment Assessment, Stabilization, and Management Plan prepared for this Project.


a. Section 01 57 26 – Aquatic Resources Protection.b. Section 01 57 28 – Woody Debris Management. c. Section 31 38 00 – Revegetation and Wetlands Management.

C. Related Management Plans: 1. Revegetation and Wetlands Management Plan 2. Woody Debris Management Plan 3. Aquatic Resources Protection Plan 4. Historic Properties Management Plan



1.2 SUBMITTALS



a. Hydraulic equipment proposed for in-water work




1.4 SITE CONDITIONS

A. Perform preliminary investigations as required to ascertain extent of work. 1.5 SEQUENCING AND SCHEDULING


B. Response Time 1. Contractor will begin performing sediment assessment immediately

following dam breaching. 2. Contractor will prepare a slope stability analysis for review by the Company 3. Contractor will be prepared to perform active sediment management with all

necessary equipment mobilized to the site immediately following breach of the dam.


A. The Contractor shall protect adjacent properties and water resources (either prior to dam breaching or those waters unaffected by breaching) from sediment stabilization impacts throughout the life of the contract in adherence to the Sediment Assessment, Stabilization, and Management Plan prepared for this project.


PART 2 – PRODUCTS

2.1 EQUIPMENT

A. Heavy Equipment 1 . Hydraulic Dredge 2 . Long Reach Excavator 3 . Graders 4 . Yarders 5 . Bulldozers 6 . Dump Trucks

B. Materials 1 . Work Mats 2 . Concrete road barriers or similar

PART 3 – EXECUTION

3.1 PREPARATION

A. Local and State Agency Requirements 1. The Contractor shall carry out all sediment management activities in accordance

with all local and state agency requirements. 2. The Contractor shall be required to obtain all pertinent stormwater and pollution


control permits.

B. The Contractor shall review Sediment Assessment, Stabilization, and Management Plan attached to

this section of the specifications.

C. Deficiencies or changes in the Sediment Assessment, Stabilization, and Management Plan as it is applied to conditions at the Project site will be brought to attention of the Project Manager for correction.

3.2 SEDIMENT MAPPING

A. The Contractor will conduct a series of Light Detection and Ranging (LiDAR) surveys. 1. The surveys will document and characterize the geomorphic response of the

White Salmon River and accumulated reservoir sediments over the time frame of two to three years.

2. The LiDAR surveys will provide detailed topography of the reservoir bed that will allow quantitative estimation of the volume of sediment removed from the reservoir through natural erosion processes and the active removal to stabilize slopes.

B. After dewatering the reservoir, ground survey control will be set and an initial LiDAR survey will be flown of the reservoir bed that extends from Condit dam to approximately 1,000-feet upstream of Northwestern Lake Road. 1. The LiDAR data will be collected with sufficient detail to map the topography of the

lake bed with a contour interval of 1 foot and a scale of 1 inch equals 100 feet. 2. One foot contours will depict the slopes of the newly formed channel of the White

Salmon River through the reservoir with sufficient detail to examine if the observed slopes exceed criteria for stable banks.

C. At the end of the first rainy season following dam breaching, a second LiDAR survey will be flown and mapped as described above. The topography will be reviewed, compared to the previous survey, and evaluated. The topographic surfaces will be compared through surface subtraction to estimate volumes of cut and fill remaining within the reservoir bed.

D. A third LiDAR survey will be conducted at the end of the second rainy season after breaching as described above. Analysis of the topography and aerial photographs will be performed as described above. Cut and fill volumes will be estimated as previously described. Based on the results of this third LiDAR survey, a determination will be made about the need for additional future surveys.

E. The Contractor will communicate the results of the LiDAR surveys to the Company and such entities as the Company determines (e.g. FERC and the Washington Department of Ecology) in annual progress and monitoring reports. The LiDAR surveys will also be used to compare the predicted geomorphic response and sediment volume discharge estimates presented in the 2004 Sediment Behavior Analysis Report with what is observed in the field.

3.3 SEDIMENT QUANTITY EVALUATION

A. The sediment mapping data will also be referenced against the original 1912 topography (Dawings CM-1201, CM-1202, and CM-1203). 1. The Contractor will determine whether the observed slopes represent pre-


project conditions. 2. The Contractor will determine whether the observed sediment is overlaying natural

slopes that may be stable. 3. The width of the river channel and various river segments will also be compared to

1912 topography data to determine if the river has re-established its previous natural channel widths and whether significant further lateral erosion of sediments is expected.

3.4 SLOPE STABILITY EVALUATION

A. The Contractor will perform a slope stability evaluation of the reservoir area to be conducted by qualified engineering personnel after the reservoir is dewatered and significant natural erosion of reservoir sediments has occurred immediately following the dam breaching. 1. The objective of this evaluation is to provide preliminary information regarding

the stability of the slopes along the newly-entrenched river channel upstream of the dam. This information will be used to plan active sediment management efforts and guide the final planning of revegetation and wetland improvement efforts.

2. The results of the slope stability analysis will be presented to the Company for review.

B. The slope stability assessment performed by the Contractor will consist of site reconnaissance of slopes and banks and observations of the site-specific conditions that may influence local slope stability. 1. The Contractor will assess the soils and sediments in the reservoir that remain

after the river has re-established its former channel and channel and determine if they meet the expected stable angle of repose of less than 30 degrees (1.73 horizontal to 1 vertical).

2. The Contractor’s slope stability assessment will identify over-steepened areas (i.e., generally exceeding a 30-degree angle of repose); areas of embankment failure; ground cracking; groundwater springs and seepage; and areas of accelerated erosion.

3. The Contractor’s assessment will determine whether the identified areas need to be addressed based on site conditions, the risk posed by potential slope instability, and the likelihood that natural short-term erosion processes will achieve a stable condition.

4. The Contractor will identify corrective actions that will be employed to remedy unstable slopes that pose a public safety risk that are not anticipated to be self-correcting as short- term natural erosion proceeds.

3.5 ASSESSMENT REPORT

A. Within 100 days of breaching the dam, the Contractor will prepare a report for review and approval by the Company. The approved report must also be submitted to FERC and Ecology within 120 days of breaching the dam. This report will include the information described above and the results of the slope stability assessment. 1. The Contractor will document the progress made toward stabilizing the slopes

and river banks within the reservoir bed and removing sediment and debris that may impede fish passage.

2. The Contractor will detail the planned actions for managing the sediment within the reservoir in order to attain stable conditions and improve fish passage conditions.


3.6 HEAVY EQUIPMENT

A. Where heavy equipment access is possible, the Contractor: 1. May push cobble and gravel sediments overlaying finer grained soils that are

more suitable for revegetation into the river. 2. May stockpile fine grained sediments and spread them over exposed areas of

cobble or gravel located above the new ordinary high water elevation. 3. May use heavy equipment for sediment and debris removal, stockpiling, and

grading where access and soil stability allow.

B. Heavy equipment may include excavators, bulldozers, graders, yarders or other equipment. Where access allows, unstable sediments may initially be pushed into the river using heavy equipment such as a long reach excavator.

3.7 HYDRAULIC EXCAVATION

A. Where access is limited, hydraulic excavation may be performed to erode sediments into the river and collapse unstable slopes. 1. Hydraulic excavation consisting of shooting a high pressure jet of water at the

base of unstable sediments to erode the toe of the slope and promote its collapse may be used.

2. Where hydraulic excavation is utilized it will require the use of small, portable temporary dams or barriers in the White Salmon River to impound water for the hydraulic excavation and pumping system. The temporary, portable dam may simply consist of a highway barrier placed in the river to provide backwater for the pump intakes.

3. Hydraulic excavation may be performed from the stable shoreline of the current reservoir or with equipment working from within, or near the shoreline of, the newly reestablished river.

4. The Contractor will be responsible for obtaining any additional permits required for the application of hydraulic excavation methods.

3.8 BLASTING

A. Blasting is another method that may be used to collapse unstable slopes within the former reservoir area or to remove or dislodge debris from the reservoir. 1. If identified as a feasible alternative to address site conditions observed

following the draining of the reservoir, blasting may be employed under strict controls.

2. The Contractor will develop a blasting plan that will document the exact location and timing of blasting activities and the necessary safety measures to be employed during execution of the blasting plan.

3. The blasting plan will be submitted to the Company and such entities as the Company determines (e.g. FERC and the Washington Department of Ecology) for review and approval prior to initiating blasting activities.

4. The Contractor will be responsible for obtaining any additional permits required for the application of blasting methods.

3.9 LOCATION

A. The locations of existing structures, access roads, and work areas can be found on Plan Sheet CM- 1201 through 1218.



B. The area for potential sediment management starts at the head of the Northwestern Lake reservoir and proceeds downstream on the White Salmon River to the footprint of the Condit dam.

3.10 INSPECTION AND MONITORING

A. The Contractor will be responsible for assuring that all inspection and certification of sediment assessment, stabilization, and management measures are carried out in accordance with State of Washington requirements. These responsibilities include: 1. Assuring and certifying the Contractor’s construction sequence is in conformance

with the specified schedule. 2. Responsible for adhering to all the assessment and monitoring protocols described

in the Sediment, Assessment, Stabilization, and Monitoring Plan.

END OF SECTION

SECTION 01 57 28 WOODY DEBRIS MANAGEMENT

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: 1. Removal of woody debris, its stockpiling, and disposal during decommissioning.

Probable areas for woody debris concentration are shown on Drawings.


a. Section 01 57 26 – Aquatic Resources Protection. b. Section 01 57 27 – Sediment Assessment, Stabilization, and Management. c. Section 01 57 28 – Woody Debris Management.

2. Division 32 – Exterior Improvements: a. Section 32 90 00 – Revegetation and Wetlands Management Plan.

C. Related Management Plans: 1. Sediment Assessment, Stabilization, and Management Plan 2. Revegetation and Wetlands Management Plan 3. Aquatic Resources Protection Plan 4. Historic Properties Management Plan

D. Project Removal Design Report 1. All construction and decommissioning wor will be guided by the schedule and details

supplied in the Project Removal Design Report prepared for this Project.

1.2 SUBMITTALS



a. Hydraulic equipment proposed for in-water work



1.4 SITE CONDITIONS


PacifiCorp Energy 01 57 28 11/17/10 Condit Decommissioning - 1- Issued for Construction




A. The Contractor shall protect adjacent properties and water resources from undue contamination.


C. Stockiled woody debris will be prevented from causing contamination.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Contractor shall provide materials suitable to complete the work and meet the State of Washington Environmental Regulations

PART 3 - EXECUTION

3.1 REMOVAL OF WOODY DEBRIS

A. The dam tunnel inlet may accumulate wood during reservoir drawdown and final dam removal. This will most likely occur during the winter between project removal commencement and completion. Therefore, equipment or explosives that can remove debris from the tunnel entrance will be available as necessary through the duration of the decommissioning.

B. The canyon reach has limited access for heavy equipment and will require removal by hand tools and/or explosives. Hand tools may need to be delivered via rafts.

C. If large volumes of wood are retained at the mouth of the White Salmon River wood may be collected using a boat and log booms to create a debris raft. The wood would then be transported out to the Columbia River or removed at the Underwood In Lieu Site boat ramp adjacent to Highway 14 on the west bank of the White Salmon River.

3.2 STOCKPILING OF WOODY DEBRIS

A. Woody debris removed by heavy equipment that is a minimum of 18-inches in diameter and 20 feet long will be stockpiled near the dam.

B. Wood smaller than that specified in 3.2 A. above will not be stockpiled.

C. Wood removed by hand tools or explosives in hard to access areas will not be salvaged.

3.3 DISPOSAL OF WOODY DEBRIS

A. Woody debris too small to be stockpiled, removed by explosives, or removed by hand tools



shall be disposed of by one or more of the following methods: 1. Piled and burned, chipped, or spread out upon the adjacent forest floor. 2. Transported to the upper reaches of the reservoir being prepared for revegetation, and

used as mulch. 3. Marketed, recycled, sold for compost, or used as landfill.


A. Any of the cleared materials not designated for stockpiling which the Contractor considers marketable shall become his property and shall be removed from the project area and legally disposed.

3.5 LOCATIONS

A. The locations of existing structures, access roads, and work areas can be found in Plan Sheets CM-1301 through CM-1305.

END OF SECTION

SECTION 01 59 00 PUBLIC SAFETY AND TRAFFIC CONTROL

PART 1 – GENERAL

1.1 SUMMARY

A. Section Includes: 1. Use of public safety and traffic control measures during decommissioning.

This specification applies to all site activities where public hazards and/or vehicle and/or equipment traffic may be present.

2. These specifications and all work performed by the Contractor shall adhere to the guidance of the Public Safety and Traffic Control Plan prepared for this project.


a. Section 01 59 00 – Public Safety and Traffic Control

C. Related Management Plans 1. Sediment Assessment, Stabilization, and Management Plan 2. Spill Prevention, Control, and Countermeasures Plan 3. Recreational Facility Removal and Improvements Plan 4. Woody Debris Management Plan 5. Revegetation and Wetlands Management Plan 6. Quality Control and Inspection Plan



1.2 SUBMITTALS

A . Shop Drawings: 1. See Section 01 33 00 for requirements for the mechanics and administration of the

submittal process.

B . Indicating type of: 1. Public safety and traffic control products.




1.4 SITE CONDITIONS





A. The Contractor shall adhere to State of Washington Department of Transportation signage and safety standards.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Public safety and traffic control products will be those prescribed in Public Safety and Traffic Control Plan prepared for this project.

PART 3 - EXECUTION

3.1 PREPARATION

A. Local and State Agency Requirements 1. The Contractor shall carry out all public safety and traffic control activities in

accordance with all local and state agency requirements. 2. The Contractor shall be required to obtain all pertinent traffic control permits.

B. The Contractor shall review the Public Safety and Traffic Control Plan attached to this section of the specifications.

C. Deficiencies or changes in the Public Safety and Traffic Control Plan as it is applied to conditions at the Project site will be brought to attention of the Project Manager for correction.

3.2 IMPLEMENTATION OF PUBLIC SAFETY AND TRAFFIC CONTROL MEASURES

A. Public safety and traffic control methods will be those prescribed in the Public Safety and Traffic Control Plan prepared for this Project

3.3 INSPECTION OF SAFETY AND TRAFFIC CONTROL MEASURES

A. The Contractor will be responsible for assuring that all inspection and certification of public safetyand traffic control measures are carried out in accordance with State of Washington requirements. These responsibilities include: 1. Assuring and certifying the Contractor’s construction sequence is in conformance



SECTION 01 62 00 PROJECT PERMITS

PART 1 – GENERAL

1.1 SUMMARY

1.2 DESCRIPTION

A. This section describes permits which will be obtained by the Company because the permits are required in the planning stage, or prior to the start of the Work, and which take substantial time to obtain. Responsibility to abide by permitting requirements remains as listed in the PacifiCorp Energy General Conditions for Public Improvement Contracts.

1.3 PERMITS

A. Permits obtained by the Company include; 1. Section 401 Water Quality Certification 2. Section 404 (discharges into waters of the U.S.)

The permits can be reviewed at the PacifiCorp Energy headquarters PacifiCorp at 825 N.E. Multnomah, Suite 1500, Portland, OR 97232

Attention: Mr. Thomas Hickey

B. Contractor shall obtain and pay for all other permits necessary to complete the project.

PART 2 – MATERIALS (NOT APPLICABLE)


END OF SECTION


SECTION 01 74 00 CLEANING AND WASTE MANAGEMENT

PART 1 – GENERAL

1.1 SUMMARY

A. Contractor shall immediately move stored materials or equipment if any occasion arises, as determined by Company, requiring access to the storage area. Materials or equipment shall not be placed on the property of Company until Company has agreed to the location to be used for storage. Company will designate locations in advance for staging, parking, storage, etc. By the end of the project each of these sites shall be reclaimed and seeded in accordance with Section 01 57 13 Temporary Erosion and Sediment Control and Section 32 90 00, Planting.

B. Maintain areas free of waste materials, debris, and rubbish. Maintain site in a clean and orderly condition.

C. Remove debris and rubbish from pipes and other closed or remote spaces.

D. Remove waste materials, debris and rubbish from the site immediately upon such materials becoming unfit for use in the work. In the event this material is not removed, Project Manager reserves the right, but does not have the duty, to have the material removed and the expense shall be charged to the Contractor.

E. Contractor shall not enter any private property outside the designated construction boundaries.

PART 2 – MATERIALS (NOT APPLICABLE)


END OF SECTION


SECTION 02 24 00 ENVIRONMENTAL ASSESSMENT

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes: 1. Monitor water quality effects of decommissioning in order to assess the

effectiveness of mitigation measures, assess mercury levels at the mouth of the White Salmon River and the Columbia River, and collect monitoring data to evaluate decommissioning-related impacts.

2. These specifications and all work performed by the Contractor shall adhere to theguidance of the Environmental Monitoring Plan prepared for this Project.

1.2 SUBMITTALS

A . Shop Drawings: 1. See Section 01 33 00 for requirements for the mechanics and administration of the submittal process.

B . Indicating manufacture and type of: 1. Monitoring equipment.



1.4 SITE CONDITIONS



A. Coordinate and schedule work as required to preclude interference with other operations and to adhere to monitoring schedule outlined in the Environmental Monitoring Plan.


A. The Contractor shall protect adjacent properties and water resources (either prior to dam breaching or those waters unaffected by breaching) from impacts related to conducting monitoring activities throughout the life of the contract in adherence to the Environmental Monitoring Plan prepared for this project.

B. All materials and monitoring equipment placed within waters of the state will adhere to the State of Washington environmental guidelines.



PART 2 - PRODUCTS

2.1 MATERIALS

A. Monitoring products will be those capable of measuring and recording to environmental parameters prescribed in the Environmental Monitoring Plan prepared for this project.

PART 3 - EXECUTION

3.1 PREPARATION

A. Local, state, and federal agency requirements 1. The Contractor shall carry out all environmental monitoring activities in

accordance with all local, state, and federal agency requirements. The Contractor shall be required to obtain all pertinent permits.

B. The Contractor shall review the Environmental Monitoring Plan attached to this section of the specifications.

C. Deficiencies or changes in the Environmental Monitoring Plan as it is applied to conditions at the Project site will be brought to attention of the Project Manager for correction.

3.2 IMPLEMENTATION OF ENVIRONMENTAL MONITORING

A. Environmental monitoring methods will be those prescribed in the Environmental Monitoring Plan prepared for this Project.

3.3 LOCATIONS OF ENVIRONMENTAL MONITORING

A. Locations for environmental monitoring will be those identified in the Environmental Monitoring Plan prepared for this Project.

3.4 INSPECTION AND REPORTING OF ENVIRONMENTAL MONITORING ACTIVITIES

A. The Contractor will be responsible for assuring that all inspection, reporting and certification of all environmental monitoring measures are carried out in accordance with State of Washington requirements. These responsibilities include: 1. Assuring and certifying the Contractor’s construction sequence is in conformance


END OF SECTION

SECTION 02 41 00 DEMOLITION AND DECONSTRUCTION

PART 1 - GENERAL

1.1 SUMMARY

A. This specification covers razing, removal, depositing, and alteration of existing structures and materials. Structures designated to be razed or modified shall include, but shall not be limited to, the existing structures and associated materials described in this section and designated on the drawings.

B. Equipment and materials shall be removed within the indicated areas. These include, but are not limited to, the following: 1 . Concrete dam 2 . Original diversion cofferdam, crib dam, and diversion flume 3 . Intake gate house/timber deck 4 . Gage house 5 . Compressor house 6 . Emergency Power Unit, propane tank, and generator 7 . Obermeyer spillway gates 8 . Vertical timber log sluice gate (1) and timber intake gates (5) 9 . Radial gates (5) 1 0 . 13 1/2-foot diameter wood stave flowline and supports 1 1 . Two 9-foot diameter (one steel and one wood stave) penstocks and supports 1 2 . Concrete forebay/surge tank and timber forebay penstock gates (2) 1 3 . De-energized powerline and support poles from substation to dam 1 4 . Powerhouse tailrace retaining wall 1 5 . Operator’s buildings 1 6 . Powerhouse (optional) 1 7 . Community docks and private docks along Northwestern Lake not removed by

owners.

C. Equipment and materials to be turned over to the Company for salvage include the following: 1. Obermeyer gate air compressors (2) 2. Obermeyer gate leaves and air bladders 3. Standby generator (for air compressor) 4. Limitorque Actuator for No. 1 and 2 gates 5. Propane tank at dam 6. Propane tank at powerhouse 7. HazMat building at powerhouse 8. Floating docks and walkways on lake (as selected by the Company) 9. Boat barrier ball boom

D. Responsibility of the Company 1. Remove electrical distribution lines from substation to powerhouse 2. Remove distribution transformer on the distribution line at the dam 3. Install new power drop to the powerhouse.

E. General Requirements: Do not begin demolition or deconstruction until written notice to proceed is received from the Company for individual structures. The work of this section is to be performed in a manner that maximizes salvage and recycling of materials. The work includes demolition, deconstruction, salvage of identified items and materials, and removal of


resulting rubbish and debris. The drawings indicate the assumed locations of existing construction and equipment, but the Company does not guarantee this data. The full extent and nature of the work shall be determined by a thorough inspection of the site.


A. Drawings and general provisions of the Contract, including General and Supplementary Conditions, and Division 01 Specification Sections, apply to this section.

B. Related Sections include the following: 1. Division 01 – General Conditions2. Section 01 53 00 – Temporary Construction 3. Section 01 55 13 – Temporary Access Roads 4. Section 02 81 00 – Transportation and Disposal of Hazardous Materials 5. Section 02 82 33 – Removal/Control and Disposal of Paint with Lead 6. Section 31 00 00 – Earthwork 7. Section 31 17 16 – Blasting Controls

1.3 REFERENCES

A. The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. 1. American National Standards Institute (ANSI) A10.b – Safety

Requirements for Demolition Operations. 2. Dust Control Plan – Mead & Hunt 3. Project Removal Design Report – Mead & Hunt

1.4 DEFINITIONS

A. Remove: Existing items that are to be disposed of either on-site, off-site, salvaged, recycled, or prepared as specified.

B. Demolish: Completely remove and legally dispose of off site.

C. Deconstruct: Dismantle in such a way as to facilitate segregation and recycling or salvage of facility components and materials.

D. Clean Concrete: Any concrete free of hazardous materials, lead-based paint and petroleum products.

E. Recycle: Recovery of demolition waste for subsequent processing for reuse.

F. Salvage: Carefully detach from existing construction to prevent damage and deliver to owner. Include fasteners or brackets needed for reattachment elsewhere.

G. Abandon: Facility to remain in place but modified as specified on the plans for permanent abandonment.

1.5 SUBMITTALS

A . Deconstruction Plan 1. Include in the plan procedures for careful removal and disposition of materials

specified to be salvaged, coordination with other work in progress, a detailed description of methods and equipment to be used for each operation and of the


sequence of operations. Identify components and materials to be salvaged for reuse or recycling with reference to Section 3.1. Provide procedures for safe conduct of the work in accordance with local, state and federal laws.

B . River Flow Management Plan 1. Contractor shall prepare a plan to address river flow management during the

demolition and deconstruction action. The plan shall include a contingency plan for flows during high flow events. By license the Company is required to maintain a flow of 15 cubic feet per second (cfs) in the 1.1 mile bypass section below the dam and has an agreement with the US Fish and Wildlife Service to maintain flow of 250 cfs downstream of the powerhouse by the Big White Salmon Ponds facility.

C . Project Sequencing Schedule 1. Contractor shall prepare a schedule for the sequence in which the Contractor

proposes to perform the work and dates on which the Contractor contemplates starting and completing all activities.

1.6 DECOMMISSIONING MANAGEMENT PLANS

A. Perform removal and abandonment activities in accordance with the Decommissioning Management Plan, which includes the Public Safety and Traffic Control Plan for safety around work areas.

1.7 PROTECTION

A. Items to Remain in Place: Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Company. Repair or replace damaged items as approved by the Company. Coordinate the work of this section with all other work indicated. Construct and maintain shoring, bracing, and supports as required. Ensure that structural elements are not overloaded. Increase structural supports or add new supports as may be required as a result of any cutting, removal, deconstruction, or demolition work performed under this contract. Provide new supports and reinforcement for existing construction weakened by demolition, deconstruction, or removal work.

B. Weather Protection: Protect Powerhouse Building interior and materials and equipment from the weather at all times.

C. Utility Service: Maintain existing utilities as shown on plans to stay in service and protect against damage during demolition and deconstruction operations.

D. Protection of Personnel: Before, during, and after the demolition and deconstruction work the Contractor shall continuously evaluate the condition of the structure being removed and take immediate action to protect all personnel working in and around the project site. No area, section, or component of the dam, penstocks, spillway, flowline, surge tank, floors, roofs, walls, columns, or other structural element will be allowed to be left standing without sufficient bracing, shoring, or lateral support to prevent collapse or failure while workmen remove debris or perform other work in the immediate area.

1.8 BURNING

A. The use of burning at the project site for the disposal of refuse and debris will not be permitted.

1.9 USE OF EXPLOSIVES


A. Use of explosives will be permitted. Use of explosive demolition methods shall comply with all applicable local, state, and federal regulations and with the requirements of Specification 31 17 16: “Blasting Controls.”

PART 2 – PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.1 EXISTING STRUCTURES AND FACILITIES TO BE REMOVED

A. Utilities and Related Equipment 1. General Requirements: Do not interrupt existing utilities, except when authorized

in writing by the Company. Do not begin demolition or deconstruction work until all utility disconnections have been made. Shut off and cap utilities for future use.

2. Utilities modifications by the following: at dam—electric to be disconnected by the Company; at powerhouse–new electric service by the Company with existing water and phone to remain; at operator’s building—water, sanitary sewer, and phone service to be removed by Contractor. Electric service will be disconnected by the Company.

B. Existing roadways and parking areas: Contractor is to maintain all existing roadways and parking areas. Any damaged areas shall be repaired at the Contractor’s expense.

C. Mechanical Equipment and Fixtures: Disconnect mechanical hardware at the nearest connection to existing services to remain, unless otherwise noted.

D. Piping: If the piping that remains can become pressurized due to upstream valve failure, end caps, blind flanges, or other types of plugs or fittings with a pressure gage and bleed valve shall be attached to the open end of the pipe to ensure positive leak control. Carefully dismantle piping that previously contained fuel oil, gasoline, oil, or other hazardous fluids, with precautions taken to prevent injury to persons and property. Store piping outdoors until all fumes and residues are removed.

3.2 EXISTING STRUCTURES AND FACILITIES TO REMAIN

A . Hofer property structures at staging area 2

B . Operators’ residential buildings


3.3 DISPOSITION OF MATERIAL

A. Title to materials scheduled for removal under this contract: Except for materials and equipment scheduled for salvage, re-use, or on-site disposal—in this or other sections of the specifications—all materials and equipment shall become the property of the Contractor.

B. Salvaged Materials and Equipment: Remove materials and equipment that are to be removed by the Contractor and that are to remain the property of the Company, and deliver to a designated storage area. 1. Store all materials salvaged by the Contractor for the Company, as approved, and

remove from the Company’s property before completion of the contract and deliver to Merwin Hydro Project warehouse.

2. Remove salvaged items to remain the property of the Company in a manner to prevent damage, and packed or crated to protect the items from damage while in storage or during shipment. Items damaged during removal or storage must be repaired or replaced to match existing items. Clearly identify the contents of containers.

C. Unsalvageable and Non-Recyclable Material: Dispose of debris, rubbish, scrap, and other non-salvageable materials resulting from removal operations with all applicable federal, state and local regulations as contractually specified in designated areas.

C . Notify company of any concrete found that is not clean as defined in this specification.

3.4 DEMOLITION AND DECONSTRUCTION LIMITS

A. Structures above the river channel shall be removed to rock or 18 inches below existing grade, whichever is encountered first. This applies to the following: 1. Dam 2. Upstream diversion system 3. Flowline support piers across ravines/Anchor block/bend 4. Surge tank mat 5. Intake structure 6. Dam spillway

B. In-stream structures and other structures as noted shall be removed to rock. This applies to the following: 1. Dam 2. Upstream diversion system 3. Tailrace walls

3.5 BURIED MATERIALS

A. Materials that can be buried in place with 12 inches of cover include: 1 . Penstock short concrete support piers 2 . Flowline footings 3 . Concrete material disposed of on-site.

B. Concrete material disposal: 1. Clean concrete from surge tank shall be disposed along the flowline and

penstock alignments and/or disposed off-site. 2. Clean concrete from all other facilities may be disposed of on-site along the flowline

and penstock alignment, hauled off-site and disposed of at a location to be determined by the Contractor, or recycled.



C. Procedures 1. Refer to Section 31 00 00 Earthwork for backfill and placement requirements.

3.6 CLEANUP

A. At the completion of razing activities, the entire razed area shall be cleaned of all construction related debris to the satisfaction of the Company. Apply local regulations regarding hauling and disposal.

END OF SECTION

SECTION 02 81 00 TRANSPORTATION AND DISPOSAL OF HAZARDOUS MATERIALS

PART 1 - GENERAL

1.1 SUMMARY

A. This specification relates to disposing of any hazardous materials that may be identified during deconstruction and decommissioning activities, including dredging. This may include, but is not limited to, the following: 1. Wood stave pipeline treatments 2. Petroleum Products 3. Asbestos 4. Polychlorinated Biphenyls (PCBs) 5. Lead-based paint 6. Mercury-containing equipment


B. Drawings and general provisions of the Contract, including General and Supplementary Conditions apply to this section.

C. Related Sections include the following: 1. Division 01 – General Conditions 2. Section 02 41 00 – Demolition and Deconstruction 3. Section 02 83 33 – Removal/Control and Disposal of Paint with Lead 4. Section 31 17 16 – Blasting Controls

1.3 REFERENCES

A. State of Washington Department of Ecology Regulations

B. U.S. Department of Transportation (DOT)

C. DOT 4500.9R Defense Transportation Regulation, Part 2, Cargo Movement, Chapter 204, Hazardous Material

D. U.S. National Archives and Records Administration (NARA)

E. 40 CFR 261 Identification and Listing of Hazardous Waste

F. 40 CFR 263 Standards Applicable to Transporters of Hazardous Waste

G. 40 CFR 266 Standards for the Management of Specific Hazardous Wastes and Specific Types of Hazardous Waste Management Facilities

H. 40 CFR 268 Land Disposal Restrictions



I. 40 CFR 270 EPA Administered Permit Programs: The Hazardous Waste Permit Program J. 40 CFR 302 Designation, Reportable Quantities, and Notification

K. 40 CFR 761 Polychlorinated Biphenyls (PCBs) Manufacturing, Processing, Distribution in Commerce, and Use Prohibitions

L. 49 CFR 107 Hazardous Materials Program Procedures

M. 49 CFR 172 Hazardous Materials Table, Special Provisions, Hazardous Materials Communications, Emergency Response Information, and Training Requirements

N. Spill Prevention, Control, and Countermeasures Plan

1.4 SUBMITTALS

A. On-site Hazardous Waste Management Plan

B. Test Reports

C. Certificates of Disposal

1.5 QUALIFICATIONS

A. Training: The Contractor's hazardous materials employees shall be trained, tested, and certified to safely and effectively carry out their assigned duties

B. Certification: The Contractor and/or sub Contractors transporting hazardous materials shall possess a current certificate of registration issued by the Research and Special Programs Administration (RSPA), U.S. Department of Transportation, when required by 49 CFR 107, Subpart G.

1.6 DEFINITIONS

A. Hazardous Material. A substance or material which has been determined by the Secretary of Transportation to be capable of posing an unreasonable risk to health, safety, and property when transported in commerce, and which has been so designated pursuant to the Hazardous Materials Transportation Act, 49 U.S.C. Appendix Section 1801 et seq. The term includes materials designated as hazardous materials under the provisions of 49 CFR 172, Sections .101 and .102 and materials which meet the defining criteria for hazard classes and divisions in 49 CFR 173. EPA designated hazardous wastes are also hazardous materials.

B. Hazardous Waste. A waste which meets criteria established in RCRA or specified by the EPA in 40 CFR 261 or which has been designated as hazardous by a RCRA authorized state program.

PART 2 - PRODUCTS

2.1 MATERIALS

A. The Contractor shall provide all of the materials required for the packaging, labeling, marking, and transportation of hazardous wastes and hazardous materials in conformance with Department of Transportation standards. Details in this specification shall not be construed as establishing the limits of the Contractor's responsibility.

B. Packagings: The Contractor shall provide containers for packaging hazardous materials/wastes consistent with the authorizations referenced in the Hazardous Materials Table in 49 CFR 172, Section .101, Column 8. Bulk and non-bulk packaging shall meet the corresponding specifications in 49 CFR 173 referenced in the Hazardous Materials Table, 49 CFR 172, Section 101.

C. Markings: The Contractor shall provide markings for each hazardous material/waste package, freight container, and transport vehicle consistent with the requirements of 49 CFR 172

2.2 EQUIPMENT AND TOOLS

A. The Contractor shall provide miscellaneous equipment and tools necessary to handle hazardous materials and hazardous wastes in a safe and environmentally sound manner.

PART 3 - EXECUTION

3.1 ON-SITE HAZARDOUS WASTE MANAGEMENT

A. The Contractor shall be responsible for ensuring compliance with all Federal, state, and local hazardous waste laws and regulations and shall verify those requirements when preparing reports, waste shipment records, hazardous waste manifests, or other documents. The Contractor shall identify hazardous wastes using criteria set forth in 40 CFR 261. The Contractor shall only use containers in good condition and compatible with the waste to be stored. The Contractor shall be responsible for ensuring containers are closed except when adding or removing waste. The Contractor shall be responsible for immediately marking all hazardous waste containers with the words "hazardous waste" and other information required by any applicable state or local law or regulation as soon as the waste is containerized. Interim hazardous waste storage areas shall be inspected weekly and logs of inspection kept. Do no store hazardous waste on site for more than 90 days.


B. Management Plan: The Contractor shall prepare a plan detailing the manner in which hazardous wastes will be managed and describing the types and volumes of hazardous wastes anticipated to be managed as well as the management practices to be utilized. The plan shall identify the method to be used to ensure accurate piece counts and/or weights of shipments; shall identify waste minimization methods; shall propose facilities to be utilized for treatment, storage, and/or disposal; shall identify areas on-site where hazardous wastes are to be handled; shall identify whether transfer facilities are to be utilized; and if so, how the wastes will be tracked to ultimate disposal.

3.2 OFF-SITE HAZARDOUS WASTE MANAGEMENT

A. The Contractor shall use RCRA Subtitle C permitted facilities that meet the requirements of 40 CFR 264 or facilities operating under interim status that meet the requirements of 40 CFR 265. Transporters must have a valid EPA identification number. Facilities receiving hazardous waste must be permitted in accordance with 40 CFR 270 or operating under interim status in accordance with 40 CFR 265 requirements, or must be permitted by a state authorized by the Environmental Protection Agency to administer the RCRA permit program.

B. Transportation and Disposal: Transportation shall comply with all requirements in the Department of Transportation referenced regulations in the 49 CFR series. The Contractor shall prepare hazardous waste manifests for each shipment of hazardous waste shipped off-site. Manifests shall be completed using instructions in 40 CFR 262, Subpart B and any applicable state or local law or regulation. Manifests and waste profiles shall be submitted to the Company for review and approval. The Contractor shall prepare land disposal restriction notifications as required by 40 CFR 268 or any applicable state or local law or regulation for each shipment of hazardous waste. The Contractor shall submit Certificates of Disposal as specified in the Submittals paragraph.

3.3 HAZARDOUS MATERIALS MANAGEMENT

A. The Contractor, in consultation with the Company, shall evaluate, prior to shipment of any material off-site, whether the material is regulated as a hazardous waste in addition to being regulated as a hazardous material; this shall be done for the purpose of determining proper shipping descriptions, marking requirements, etc., as described below.

B. Identification of Proper Shipping Names: The Contractor shall use 49 CFR 172, Section .101 to identify proper shipping names for each hazardous material (including hazardous wastes) to be shipped off-site.

C. Packaging, Labeling, and Marking: The Contractor shall package, label, and mark hazardous materials/wastes using the specified materials and in accordance with the referenced authorizations.

D. Shipping Documents: The Contractor shall ensure that each shipment of hazardous material sent off-site is accompanied by properly completed shipping documents. This includes shipments of samples that may potentially meet the definition of a Department of Transportation regulated hazardous material. 1. PCB Waste Shipment Documents: The Contractor shall prepare hazardous waste


manifests for each shipment of PCB waste shipped off-site. Manifests shall be completed using instructions in 40 CFR 761, Sections .207 and .208 and all other applicable requirements. Documents shall be submitted to the Company for review and approval.

2. Asbestos Waste Shipment Documents: The Contractor shall prepare waste shipment records as required by 40 CFR 61 for shipments of asbestos. Waste shipment records shall be submitted to the Company for review and approval. Waste shipment records shall be signed by the Contractor.

3. Other Hazardous Material Shipment Documents: The Contractor shall prepare a bill of lading for each shipment of hazardous material which is not accompanied by a hazardous waste manifest or asbestos waste shipment record which fulfills the shipping paper requirements. The bill of lading shall satisfy the requirements of 49 CFR 172, Subpart C, 40 CFR 279 if shipping used oil, and any applicable state or local law or regulation, and shall be submitted to the Company for review and approval. For laboratory samples and treatability study samples, the Contractor shall prepare bills of lading and other documentation as necessary to satisfy conditions of the sample exclusions in 40 CFR 261, Section .4(d) and (e) and any applicable state or local law or regulation.

3.4 SPECIAL REQUIREMENTS FOR ASBESTOS WASTES

A. If work involves asbestos containing wastes, the Contractor shall manage these wastes in accordance with local, state and federal regulations.

3.5 WASTE MINIMIZATION

A. The Contractor shall minimize the generation of hazardous waste to the maximum extent practicable. The Contractor shall take all necessary precautions to avoid mixing clean and contaminated wastes. The Contractor shall identify and evaluate recycling and reclamation options as alternatives to land disposal. Requirements of 40 CFR 266 shall apply to: hazardous wastes recycled in a manner constituting disposal; hazardous waste burned for energy recovery; lead-acid battery recycling; and hazardous wastes with economically recoverable precious metals.

3.6 RECORDKEEPING

A. The Contractor shall be responsible for maintaining adequate records to support information provided to the Company regarding exception reports, annual reports, and biennial reports. The Contractor shall be responsible for maintaining asbestos waste shipment records for a minimum of 3 years from the date of shipment or any longer period required by any applicable law or regulation or any other provision of this contract. The Contractor shall be responsible for maintaining bill of ladings for a minimum of 375 days from the date of shipment or any longer period required by any applicable law or regulation or any other provision of this contract.

3.7 SPILL RESPONSE

A. The Contractor shall respond to any spills of hazardous material or hazardous waste which are



in the custody or care of the Contractor, pursuant to this contract. The Contractor shall comply with all applicable requirements of Federal, state, or local laws or regulations regarding any spill incident. In addition, the Contractor shall comply with the Spill Prevention Control and Countermeasures Plan.

END OF SECTION

SECTION 02 82 33 REMOVAL/CONTROL AND DISPOSAL OF PAINT WITH LEAD

PART 1 GENERAL

1.1 SUMMARY

A. This section includes: 1. Abatement of lead-containing paint is not deemed necessary based on the analytical

results for total lead reported by the Company. Lead-containing paint is located in the Condit facility buildings on wall paint and trim paint. Lead-containing paint is present on interior and exterior walls of the operator houses, according to data generated by the Company personnel in April 2008. Additionally, it is assumed that lead-containing paint was present on the corrugated siding of the gatehouse. The analytical results and specific paint sampled are summarized on Tables 4 and 5 of the Hazardous Building Material Survey Data Report. Results, for the two operator houses ranged from non- detect to 210,000-mg/kg (milligrams per kilogram) lead. The paint coatings on the site buildings were generally in fair to good condition. The paint was generally adhered to the underlying building material, which is typically wood. The Contractor must notify workers of the lead content of paint and proper work practices should be employed to reduce the generation of dust during demolition. The Toxicity Characteristic Leaching Procedure (TCLP) result for lead, which was associated with the “worst-case” total lead result on the 1913 operator house, was reported to be 0.12 mg/L (milligrams per liter), which is below the 5-mg/L toxicity characteristic. Therefore, building debris generated during demolition can be considered non-hazardous construction debris. The laboratory reports are included in the Hazardous Building Material Survey Data Report.

2. All painted structures to be removed, including penstock sections, intake structures, gates, and hardware, shall be considered coated with lead-based paint as documented according to these specifications, unless testing reveals otherwise. The Contractor shall incorporate the use of lead paint abatement services into its work as necessary to protect employees of the Contractor, employees of the Company, and the public.

3. The Contractor shall coordinate with work being performed in adjacent areas. Coordination procedures shall be explained in the Removal/Control Plan and shall describe how the Contractor will prevent lead exposure to other contractors and/or the Company personnel performing work unrelated to lead activities.

4. Should lead-containing paint that is delaminating, flaking, dusting, or chipping (generally not adhered to the substrate) be present of facility structures planned for demolition, then the lead-containing paint removal procedures described by this section will apply.



B. Related Sections include the following:


1. Division 01 – General Conditions 2. Section 02 41 00 – Demolition and Deconstruction 3. Section 02 81 00 – Transportation and Disposal of Hazardous Materials

1.3 REFERENCES

A. American National Standards Institute ANSI Z88.2 (1992) Respiratory Protection

B. U.S. National Archives and Records Administration (NARA)1. 29 CFR 1926.103 Respiratory Protection 2. 29 CFR 1926.21 Safety Training and Education 3. 29 CFR 1926.55 Gases, Vapors, Fumes, Dusts, and Mists 4. 29 CFR 1926.59 Hazard Communication 5. 29 CFR 1926.62 Lead 6. 29 CFR 1926.65 Hazardous Waste Operations and Emergency Response 7. 40 CFR 260 Hazardous Waste Management System: General 8. 40 CFR 261 Identification and Listing of Hazardous Waste 9. 40 CFR 263 Standards Applicable to Transporters of Hazardous Waste10. 40 CFR 264 Standards for Owners and Operators of Hazardous Waste

Treatment, Storage, and Disposal Facilities 11. 40 CFR 268 Land Disposal Restrictions 12. 49 CFR 172 Hazardous Materials Table, Special Provisions, Hazardous

Materials Communications, Emergency Response Information, and Training Requirements

13. UL 586 Underwriters Laboratory (1996; Rev thru Apr 2000) High-Efficiency, Particulate, Air Filter Units

1.4 DEFINITIONS

A. Abatement: Abatement means any set of measures designed to permanently eliminate lead-based paint hazards in accordance with standards established by appropriate Federal agencies. Such term includes: 1. The removal of lead-based paint and lead-contaminated dust, the permanent

containment or encapsulation of lead-based paint, the replacement of lead-painted surfaces or fixtures, and the removal or covering of lead contaminated soil; and

2. All preparation, cleanup, disposal, and post-abatement clearance testing activities associated with such measures.

B. Action Level: Employee exposure, without regard to use of respirators, to an airborne concentration of lead of 30 micrograms per cubic meter of air averaged over an 8 hour period in a work environment.

C. Area Sampling: Sampling of lead concentrations within the lead control area and inside the physical boundaries, which is representative of the airborne lead concentrations but is not collected in the breathing zone of personnel.

D. Competent Person (CP): As used in this section, refers to a person employed by the Contractor who is trained in the recognition and control of lead hazards in accordance with current federal, State, and local regulations. A Certified Industrial Hygienist (CIH) certified


for comprehensive practice by the American Board of Industrial Hygiene or a Certified Safety Professional (CSP) certified by the Board of Certified Safety Professionals is the best choice.

E. Deleading: Activities conducted by a person who offers to eliminate lead-based paint or lead-based paint hazards or to plan such activities in commercial buildings, bridges or other structures.

F. Eight-Hour Time Weighted Average (TWA): Airborne concentration of lead to

which an employee is exposed, averaged over an 8 hour workday as indicated in 29 CFR 1926.62.

G. High Efficiency Particulate Air (HEPA) Filter Equipment: HEPA filtered vacuuming equipment with a UL 586 filter system capable of collecting and retaining lead-contaminated paint dust. A high efficiency particulate filter means 99.97 percent efficient against 0.3 micron or larger size particles.

H. Lead: Metallic lead, inorganic lead compounds, and organic lead soaps.

I. Lead-Based Paint (LBP): Paint or other surface coating that contains lead in excess of 1.0 milligrams per centimeter squared or 0.5 percent by weight.

J. Lead-Based Paint Hazard (LBP Hazard): Any condition that causes exposure to lead from lead- contaminated dust, lead-contaminated soil, lead-based paint that is deteriorated or present in accessible surfaces, friction surfaces, or impact surfaces that would result in adverse human health effects.

K. Lead-containing paint (LCP) or Paint with Lead (PWL): Any paint that contains lead as determined by the testing laboratory using a valid test method. The requirements of this section does not apply if no detectable levels of lead are found using a quantitative method for analyzing paint using laboratory instruments with specified limits of detection (usually 0.01%). An X-Ray Fluorescence (XRF) instrument is not considered a valid test method.

L. Lead Control Area: A system to prevent the spread of lead dust, paint chips or debris to adjacent areas that may include temporary containment, floor or ground cover protection, physical boundaries, and warning signs to prevent unauthorized entry of personnel. HEPA filtered local exhaust equipment may be used as engineering controls to further reduce personnel exposures or building/outdoor environmental contamination.

M. Lead Permissible Exposure Limit (PEL): Fifty micrograms per cubic meter of air as an 8 hour time weighted average as determined by 29 CFR 1926.62. If an employee is exposed for more than eight hours in a workday, the PEL shall be determined by the following formula: 1. PEL (micrograms/cubic meter of air) = 400/No. hrs worked per day

N. Personal Sampling: Sampling of airborne lead concentrations within the breathing zone of an employee to determine the 8 hour time weighted average concentration in accordance with 29 CFR 1926.62. Samples shall be representative of the employees' work tasks. Breathing zone shall be considered an area within a hemisphere, forward of the shoulders, with a radius of 6 to 9 inches and centered at the nose or mouth of an employee.

O. Physical Boundary: Area physically roped or partitioned off around an enclosed lead control area to limit unauthorized entry of personnel. As used in this section, "inside


boundary" shall mean the same as "outside lead control area but inside the physical boundary."

1.5 SUBMITTALS

A. Material safety data sheets for all chemicals

B. Completed and signed hazardous waste manifest from treatment or disposal facility

1.6 QUALITY ASSURANCE

A. Qualifications 1. Training Certification: Submit proof the work will be performed by a certified firm. 2. Testing Laboratory: Submit the name, address, and telephone number of the

testing laboratory selected to perform the air and wipe sampling, testing, and reporting of airborne concentrations of lead.

B. Requirements 1. Competent Person (CP) Responsibilities

a. Verify training meets all federal, State, and local requirements. b. Review and approve lead-based paint/paint with lead removal/control plan

for conformance to the applicable standards. Ensure work is performed in strict accordance with specifications at all times.

c. Continuously inspect lead-based paint removal/control work for conformance with the approved plan.

d. Perform air and wipe sampling. e. Control work to prevent hazardous exposure to human beings and to

the environment at all times. 2. Lead-Based Paint/Paint with Lead Removal/Control Plan (LBP/LCP R/CP) 3. Respiratory Protection Program

a. Provide each employee required to wear a respirator a respirator fit test at the time of initial fitting and at least annually thereafter as required by 29 CFR 1926.62.

b. Establish and implement a respiratory protection program as required by ANSI Z88.2, 29 CFR 1926.103, 29 CFR 1926.62, and 29 CFR 1926.55.

4. Lead Waste Management: The Lead Waste Management Plan shall comply with applicable requirements of federal, State, and local hazardous waste regulations and address:

5. Environmental, Safety and Health Compliance: In addition to the detailed requirements of this specification, comply with laws, ordinances, rules, and regulations of Federal, State, and local authorities regarding removing, handling, storing, transporting, and disposing of lead waste materials. Comply with the applicable requirements of the current issue of 29 CFR 1926.62.

1.7 EQUIPMENT

A. Respirators: Furnish appropriate respirators approved by the National Institute for Occupational Safety and Health (NIOSH), Department of Health and Human Services, for use in atmospheres containing lead dust. Respirators shall comply with the requirements of 29 CFR 1926.62.


B. Special Protective Clothing: Furnish personnel who will be exposed to lead-contaminated dust with proper protective whole body clothing, head covering, gloves, and foot coverings as required by 29 CFR 1926.62. Furnish proper disposable plastic or rubber gloves to protect hands. Reduce the level of protection only after obtaining approval from the CP.

C. Vacuum Filters 1. UL 586 labeled HEPA filters.

1.8 PROJECT/SITE CONDITIONS

A. Protection of Existing Work to Remain: Perform paint removal work without damage or contamination of adjacent areas. Where existing work is damaged or contaminated, restore work to its original condition or better.

PART 2 – PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.1 PREPARATION

A. Protection 1. Notification

a. Notify the Company prior to the start of any paint removal work. 2. Boundary Requirements

a. Provide physical boundaries around the lead control area by roping off the area designated in the work plan or providing curtains, portable partitions or other enclosures to ensure that lead will not escape outside the lead control area.

3. Heating, Ventilating and Air Conditioning (HVAC) Systems: Shut down, lock out, and isolate HVAC systems that supply, exhaust, or pass through the lead control areas. Seal intake and exhaust vents in the lead control area with 6 mil plastic sheet and tape. Seal seams in HVAC components that pass through the lead control area.

4. Eye Wash Station: Where eyes may be exposed to injurious corrosive materials, suitable facilities for quick drenching or flushing of the eyes shall be provided within the work area.

5. Mechanical Ventilation System a. Use adequate ventilation to control personnel exposure to lead in

accordance with 29 CFR 1926.62. b. To the extent feasible, use local exhaust ventilation connected to HEPA filters

or other collection systems, approved by the CP. Local exhaust ventilation systems shall be evaluated and maintained in accordance with 29 CFR 1926.62.

c. Vent local exhaust outside the building only and away from building ventilation intakes.

d. Use locally exhausted, power actuated, paint removal tools. 6. Personnel Protection: Personnel shall wear and use protective clothing and

equipment as specified herein.


3.2 APPLICATION

A. Work Procedures: Perform removal of lead-based paint in accordance with approved lead-based paint/paint with lead removal/control plan. Use procedures and equipment required to limit occupational and environmental exposure to lead when lead-based paint is removed in accordance with 29 CFR 1926.62. Dispose of removed paint chips and associated waste in compliance with Environmental Protection Agency (EPA), State, and local requirements.

B. Lead-Based Paint Removal/Control/Deleading: Provide methodology for LBP/LCP removal and processes to minimize contamination of work areas outside the control area with lead- contaminated dust or other lead-contaminated debris/waste and to ensure that unprotected personnel are not exposed to hazardous concentrations of lead. Describe this LBP/LCP removal/control process in the LBP/LCP R/CP. 1. Indoor Paint Removal: Perform paint removal in lead control areas using

enclosures, barriers, or containments. Collect residue and debris for disposal in accordance with federal, State, and local requirements.

2. Outdoor Paint Removal: Perform outdoor removal as indicated in federal, State, and local regulations and in the LBP/CPR/CP. The worksite preparation shall be job dependent and presented in the LBP/LCP R/CP.

3.3 FIELD QUALITY CONTROL

A. Tests 1. Air and Wipe Sampling: Air sample for lead in accordance with 29 CFR 1926.62

and as specified herein. Air and wipe sampling shall be directed or performed by the CP.

2. Air Sampling During Paint Removal Work: Conduct area air sampling daily in which lead-based paint removal operations are performed, in areas immediately adjacent to the lead control area. Sufficient area monitoring shall be conducted to ensure unprotected personnel are not exposed at or above 30 micrograms per cubic meter of air. If 30 micrograms per cubic meter of air is reached or exceeded, stop work and correct the conditions(s) causing the increased levels. Notify the Company immediately. Determine if condition(s) require any further change in work methods. Removal work shall resume only after the CP and the Company give approval. For outdoor operations, at least one sample shall be taken on the downwind side of the lead control area.

3. Sampling After Paint Removal/Control: After the visual inspection, conduct soil sampling if bare soil is present during external removal/control operations and collect wipe samples according to the HUD protocol contained in HUD 6780 to determine the lead content of settled dust and dirt in micrograms per square meter foot of surface area.

3.4 CLEANING AND DISPOSAL

A. Cleanup: Maintain surfaces of the lead control area free of accumulations of paint chips and dust. Restrict the spread of dust and debris and keep waste from being distributed over the work area. Do not dry sweep or use compressed air to clean up the area. When the paint removal operation has been completed, clean the area of visible lead paint contamination by



vacuuming with a HEPA filtered vacuum cleaner, wet mopping the area and wet wiping the area as indicated by the CP. Reclean areas showing dust or residual paint chips or debris. After visible dust, chips, and debris is removed, wet wipe and HEPA vacuum all surfaces in the work area. If adjacent areas become contaminated at any time during the work, clean, visually inspect, and then wipe sample all contaminated areas. 1. Clearance Certification: The CP shall certify in writing that air samples collected

outside the lead control area during paint removal operations are less than 30 micrograms per cubic meter of air; the respiratory protection used for the employees was adequate; the work procedures were performed in accordance with 29 CFR 1926.62 and 40 CFR 745; and that there were no visible accumulations of material and dust containing lead left in the work site. Do not remove the lead control area or roped off boundary and warning signs prior to the Company’s acknowledgement of receipt of the CP certification.

B. Disposal 1. Collect lead-contaminated waste, scrap, debris, bags, containers, equipment, and

lead- contaminated clothing that may produce airborne concentrations of lead particles. Label the containers in accordance with 29 CFR 1926.62 and 40 CFR 262. Dispose of lead- contaminated waste material at a permitted hazardous waste treatment, storage, or disposal facility off the Company property.

2. Place waste materials in U.S. Department of Transportation (49 CFR 178) approved 208 liter (55 gallon drums). Properly label each drum to identify the type of waste (49 CFR 172) and the date the drum was filled. For hazardous waste, the collection drum requires marking/labeling in accordance with 40 CFR 262 during the accumulation/collection timeframe. Do not store hazardous waste drums in interim storage longer than 90 calendar days from the date affixed to each drum

3. Handle, transport, and dispose lead or lead-contaminated material classified as hazardous waste in accordance with 40 CFR 260, 40 CFR 261, 40 CFR 262, 40 CFR 263, 40 CFR 264, and 40 CFR 265. Comply with land disposal restriction notification requirements as required by 40 CFR 268.

4. All material, whether hazardous or non-hazardous shall be disposed in accordance with laws and provisions and Federal, State, or local regulations.

END OF SECTION

SECTION 02 84 00 POLYCHLORINATED BIPHENYL & MERCURY-CONTAINING LIGHT TUBE REMOVAL

PART 1 - GENERAL

1.1 This specification relates to the removal of polychlorinated biphenyl (PCB)-containing ballasts and mercury-containing light tubes. Contractor shall remove, transport, and properly dispose or recycle light and thermostat fixtures within the operator houses, detached garages/sheds, surge tower, and gatehouse that contain PCBs and mercury.

1.2 Contractor shall obtain all necessary permits and provide all necessary notifications related to the removal and disposal/recycling of PCB-containing ballasts and mercury-containing light tubes.

1.3 Contractor shall provide copies of waste shipment receipts and waste manifests to the the Company within 5 days of receipt of such documentation.

PART 2 - PRODUCTS

2.1 Contractor shall provide all necessary material and properly labeled containers to package for transport PCB-containing ballasts and mercury-containing light tubes. Labeling of disposal/recycling containers shall comply with applicable federal and state regulations.

PART 3 - EXECUTION

3.1

A. Where fluorescent light fixtures are present in the site buildings, the Contractor shall have a licensed electrician lock/tag out the lighting circuits. The Contractor shall remove light ballasts that do not have “non-PCB” labels, and these ballasts shall be assumed to contain PCB- contaminated oil. The Contractor shall properly collect, package, and dispose of the ballasts at an appropriate landfill permitted to receive this Toxic Substance Control Act (TSCA) waste.

B. Where fluorescent light fixtures are present, the Contractor shall collect for recycling all fluorescent light tubes in the site buildings. The Contractor shall package light tubes with green ends separately from the older light tubes prior to transportation to a recycling facility. Light tubes that do not have green ends are assumed to contain mercury vapor.

C. It is assumed that at least two thermostats that contain mercury are present in the two operator houses. Contractor shall remove for proper recycling the thermostats.

END OF SECTION


SECTION 11 65 00 RECREATIONAL FACILITY MANAGEMENT

PART 1 – GENERAL

1.1 SUMMARY

A. Section Includes: 1. Removal of recreational facilities in the vicinity of the Northwestern Lake

Park and docking facilities at the Condit dam. 2. The use of a portion of Northwestern Lake Park as a staging area. 3. The removal of boating access ramps at Northwestern Lake. 4. The removal of boat docks at Northwestern Lake.


a. Section 01 59 00 – Public Safety and Traffic Control. b. Section 11 65 00 – Recreational Facility Management.

C. Related Management Plans 1. Public Safety and Traffic Control Plan 2. Erosion Control Plan 3. Dust Control Plan 4. Revegetation and Wetlands Management Plan



1.2 SUBMITTALS

A. Shop Drawings: 1. See Section 01 33 00 for requirements for the mechanics and administration of the

submittal process.


A. General: 1. Salvage items, designated for the Company’s salvage, as a functional unit. 2. Clean, list and tag for storage. 3. Protect from damage and deliver to location designated. 4. Salvage each item with auxiliary or associated equipment required for operation.

1.4 SITE CONDITIONS



A. Coordinate and schedule work as required to preclude interference with other operations.

1.6 ENVIRONMENTAL REQUIREMENTS A. The Contractor shall protect adjacent properties and water resources (either prior to dam

breaching or those waters unaffected by breaching) from impacts related recreational


facilities removal throughout the life of the contract in adherence to the Recreational Facility Removal and Improvements Plan prepared for this project.


PART 2 – PRODUCTS

2.1 EQUIPMENT

A. Contractor will supply necessary equipment to remove concrete boat ramp and boat docks. 1. Equipment must be rated for use in ecologically sensitive waters.

2.2 MATERIALS

A. Contractor will supply necessary materials to complete the job as specified in the Recreational Facility and Improvement Plan. 1. Materials are to be rated as lasting for the length of the project or as

required to accomplish their intended use. 2. Materials must be non-toxic to aquatic organisms.

PART 3 - EXECUTION

3.1 PREPARATION

A. Local and State Agency Requirements 1. The Contractor shall carry out all removal and staging activities in accordance

with all local and state agency requirements. 2. The Contractor shall be required to obtain all pertinent stormwater and pollution

control permits.

B. The Contractor shall review the Recreational Facilities Management Plan attached to this section of the specifications.

C. Deficiencies or changes in the Recreational Facilities Management Plan as it is applied to conditions at the Project site will be brought to attention of the Project Manager for correction.

3.2 NORTHWESTERN LAKE PARK CONSTRUCTION STAGING

A. The area of Northwestern Park that will be used for construction staging will be completely fenced along the entire width of the park and have a gate at the primary access point.

B. Areas within driplines of existing trees to remain shall be protected with temporary tree protection fencing to avoid compaction and damage during construction.

C. The area currently used for parking and roadway will be configured for temporary parking of boater shuttle cars.

D. The construction staging area at the park will remain fenced and gated until sediment removal efforts have been completed.

E. Upon completion of construction activities, fencing will be removed, and the park will be reconfigured to pre-dam decommissioning conditions.



3.3 NORTHWESTERN LAKE BOATING ACCESS

A. The concrete boat ramp at the park will be removed.

B. Park improvements will include a small, shallow, semi-circular water cove boat launch and exit area that extends to the new waterline, surfaced with river pebbles or gravel to allow for safe boater take-out from upstream locations.

3.4 NORTHWESTERN LAKE BOAT DOCKS

A. The boat launch adjacent to the east end of the dam will be closed during and after the deconstruction of Condit dam.

B. All existing boat docks along Northwestern Lake will be noted and removed prior to the drawdown of the reservoir. Any signage associated with these dock facilities should be removed as well.

C. Contractor will contact dock owners and provide a two-month period to remove docks and signs. Any docks remaining will be removed, after the two-month period, by Contractor.

D. Contractor will remove the two sets of docks and concrete boat ramp at Northwestern Lake Park.

3.5 INSPECTION

A. The Contractor will be responsible for assuring that all activities associated with the removal of recreation facilities are carried out in accordance with State of Washington requirements. These responsibilities include: 1. Assuring and certifying the Contractor’s construction sequence is in conformance

with the specified schedule. 2. Providing completed construction checklists to the Project Manager.

END OF SECTION

SECTION 31 00 00 EARTHWORK

PART 1 - GENERAL

1.1 SUMMARY

A. This section includes site work for excavation, backfilling, placing structural fill, preparation of subgrades for removing structures, filling of tailrace, capping of buried materials, and other appurtenant work.


A. Drawings and general provisions of the Contract, including General and Supplementary Conditions, apply to this Section.

B. Related Sections include the following: 1. Division 01 – General Conditions 2. Section 01 55 13 – Temporary Access Roads 3. Section 02 41 00 – Demolition and Deconstruction 4. Section 31 11 00 – Clearing and Grubbing

1.3 REFERENCES

A. The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. 1. ASTM International (ASTM) 2. Dust Control Plan 3. Erosion Control Plan 4. Sediment Assessment, Stabilization, and Management Plan

1.4 SUBMITTALS

A. Contractor will be required to submit samples, engineering data, installation instructions and manufacturer's certificate of geotextiles that are planned to be used.

B The Contractor shall plan to establish and maintain temporary access roads within Company property boundaries as required, including cross drainage, to complete the project. Contractor will develop a plan for personnel and equipment access, including staging and lay-down areas. The Plan will be submitted for review and approval by the Company.


PART 2 - PRODUCTS

2.1 FILL MATERIALS

A. Comply with excavating, backfilling, and compacting procedures for soils used as backfill material to fill low areas, voids, depressions or excavations resulting from demolition or deconstruction of structures. Fill material shall be waste material from demolition or deconstruction until all waste appropriate for this purpose is consumed.

B. If sediment sluicing does not raise the tailrace channel to elevations provided in the drawings, clean fill that does not contain waste material from demolition or deconstruction activities shall be used to raise the tailrace.

C. Capping materials shall consist of material free from demolition debris.

D. Furnish riprap conforming to requirements of the State of Washington Department of Transportation’s Heavy Loose Riprap (Section 9.13.1[1]).

PART 3 - EXECUTION


A. General Performance: The methods, means, and equipment required to complete the work shall be the responsibility of the Contractor.

B. Provide geotextiles or other materials between buried rubble, sediment, debris and capping materials to prevent settlement of capping soils.

C. Selection and placement of fill materials for permanent applications shall be performed in such a manner so that total and differential settlements do not exceed 1-inch, or as approved by the Company.

D. If tailrace is not filled with sediment during breaching, concrete rubble or construction debris shall not be used to fill tailrace.

3.2 SITE PREPARATION

A. All areas to be occupied by permanent construction shall be cleared of logs, trees, roots, brush, deleterious materials, and objectionable materials and debris. Subgrades for permanent construction shall be cleaned and stripped of surface vegetation, sod, topsoil, organic matter, and approved prior to fill placement.

3.3 PLACEMENT AND COMPACTION

A. No fill shall be placed on frozen surfaces, or shall frozen materials be placed in any backfill



or fill areas that are to be permanent.

B. Other than concrete rubble, fill shall be placed in leveled, horizontal layers not to exceed 12 inches in uncompacted thickness.

C. Earthwork compaction shall consist of no less than three passes of earth-moving equipment consisting of a D-7 bulldozer or equivalent.

D. Reinforcing steel, miscellaneous metal, and concrete will not be allowed to protrude from the surface of the on-site disposal areas.

E. Contractor shall deposit materials in such a manner so that concrete, reinforcing steel, miscellaneous steel, and debris will not be visible due to settlement of capping materials and soils.

F. Concrete rubble fill and concrete footings for the flowline and penstocks shall have a minimum of 12 inches of cover.

G. Testing necessary to satisfy Contractor's internal quality control procedures and to control the work shall be the responsibility of the Contractor.

3.4 GEOTEXTILES

A. Contractor shall handle geotextiles in such a manner as to ensure the geotextile is not damaged. Contractor shall not operate equipment directly on the geotextile.

B. Geotextiles shall be installed free of wrinkles and folds.

C. Overlap shall be in accordance with manufacturer's recommendations.

3.5 DEWATERING

A. As noted in Specification 01 53 00 for Temporary Construction, Section 1.5, Submittals, a tailwater cofferdam may be needed to maintain a dry work area. If a tailwater cofferdam is proposed, the Contractor will develop a detailed Tailwater Cofferdam Construction and Removal Plan for review and approval by the Company. The Plan needs to also address dewatering that is proposed for the cofferdam. The approved Plan must also be submitted to FERC PRO for subsequent approval. Allow at least 60 days for FERC review.

B. Contractor to design, furnish, install, maintain, and operate dewatering systems for all excavations and temporary structures required for the decommissioning work covered under these specifications. Should pumping systems be required, selection of pumping capacity for dewatering systems shall be made by the Contractor. The Contractor shall notify the Company prior to the beginning of dewatering.

END OF SECTION

SECTION 31 11 00 CLEARING AND GRUBBING

PART 1 - GENERAL

1.1 SUMMARY

A. This specification applies to areas of permanent construction, access roads and staging areas, and all demolition activities.

B. Section includes: 1. Removing existing vegetation. 2. Stripping and stockpiling topsoil.



B. Related Sections: 1. Division 01 – General Conditions 2. Section 01 53 00 – Temporary Construction 3. Section 01 53 13 – Temporary Access Roads 4. Section 02 41 00 – Demolition and Deconstruction 5. Section 31 00 00 – Earthwork

1.3 DEFINITIONS

A. Subsoil: All soil beneath the topsoil layer of the soil profile, and typified by the lack of organic matter and soil organisms.

B. Topsoil: Top layer of the soil profile consisting of existing native surface topsoil or existing in- place surface soil and is the zone where plant roots grow.

C. Vegetation: Trees, shrubs, groundcovers, grass, and other plants

1.4 MATERIAL OWNERSHIP

A. Except for stripped topsoil, cleared materials shall become Contractor’s property and shall be removed from the project site.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION



3.1 PREPARATION

A. Protect and maintain benchmarks and survey control points from disturbance during construction.

B. Protect existing site improvements from damage during construction. 1. Restore damaged improvements to their original condition, as acceptable to the

Company.

3.2 DISPOSAL OF MATERIAL

A. General: The material cleared from the areas shall be completely removed by transporting to designated areas that are approved by the Company. The Contractor may cut timber into convenient lengths at the site. In no case shall cleared material be thrown into or left in the creeks or river. Clean-up of floatable debris shall be accomplished by any practical means.

B. Burning: No burning will be permitted.

C. Removal from Site: Except as otherwise provided, the Contractor will be permitted to remove felled and trimmed timber from the site of the work. The Contractor will be allowed to stockpile salvaged timber at approved locations. The Company will assume no responsibility for the protection and safekeeping of such material.


A. Any of the cleared materials which the Contractor considers marketable shall become his property and shall be removed from the project area.

3.4 LOCATIONS

A. The locations of existing structures, access roads, work areas, and staging areas can be found in the Project Drawings.

B. Limit clearing and grubbing efforts to the minimal amount necessary to complete the work. Clearing areas must be marked and approved by the Company prior to commencement of clearing activities.

END OF SECTION

SECTION 31 17 16

BLASTING CONTROLS

PART 1 – GENERAL

1.1 SUMMARY

A. This Section specifies procedures for and restrictions on blasting operations and the storage, handling and use of explosives for the excavation of a tunnel through the dam and for controlled demolition of concrete in the dam and appurtenant facilities.



B. Related Sections include the following: 1. Division 01 – General Conditions 2. Section 01 53 00 – Temporary Construction 3. Section 02 41 00 – Demolition and Deconstruction

1.3 REFERENCES

1. The Contractor shall comply with the applicable rules, regulations and standards established by the Regulatory Agencies, codes and professional societies listed herein, including rules and regulations for storage, transportation, and use of explosives. These rules and standards include but are not limited to the following:

2 The Federal Occupational Safety and Health Act of 1970 and the Construction Safety Act of 1969, as amended.

3. OSHA of 1970, 29 U.S.C., Section 651 et seq., including safety and health regulations for construction.

4. OSHA, 29 CFR, Standard 1926, Subpart U, Blasting and Use of Explosives. 5. U.S. Department of Justice, Alcohol, Tobacco, Firearms and Explosives Division

(ATF). 27 CFR Part 555, Implementation of the Safe Explosives Act, Title XI, Subtitle C of Public Law 107-296; Interim Final Rule.

6. Organized Crime Control Act of 1970, Title XI, Public Law 91-452, approved October 15, 1970, as amended.

7. CFR 49, Parts 100-177 (DOT RSPA); 301-399 (DOT FHA). 8. Washington State Department of Labor and Industry. WAC 296-52 -- Safety

Standards for the Possession and Handling of Explosives. 9. Non-regulating Industry Support Organizations

a. Vibration Subcommittee of the International Society of Explosive Engineers (ISEE), blast monitoring equipment operation standards (1999).

b. IME (Institute of Makers of Explosives) Safety Library Publications (SLPs). 9. Project Removal Design Report – Mead & Hunt

10. Decommissioning Management Plans


1.4 DEFINITIONS

A. Air-Overpressure: Temporary changes in ambient air pressure caused by blasting. Air- overpressure is expressed in units of psi or dB-L (Linear-scale decibels).

B. Blaster-in-Charge or Blasting Supervisor: The single designated and licensed person with complete responsibility and total authority over all decisions involving safe handling, use, and on- site security of explosives.

C. Blasting Consultant: A person with specialized experience and knowledge of commercial explosives, controlled blasting applications, vibration and air-overpressure control; who uses this knowledge to evaluate, plan, and oversee the safe use of explosives in commercial applications in accordance with blasting industry and regulatory standards.

D. Charge-per-Delay: For vibration control, any charges firing within any 8-millisecond time period are considered to have a cumulative effect on vibration and air-overpressure effects. Therefore, the maximum charge-per-delay (W) is the sum of the weight of all charges firing within any 8- millisecond time period. For example, if two 10-lb charges fire at 100 ms and one 15-lb charge fires at 105 ms, the maximum charge per delay would be 35 lbs.

E. Controlled Blasting: The special blasting methods used to limit the effects of blasting to within the final lines and grades of an excavation. Controlled blasting techniques are generally limited to the perimeter of the excavation. Line drilling and Smoothwall blasting are examples of controlled blasting techniques.

F. Cushion or Trim Blasting: A blasting technique in which the line of holes along the boundary of the excavation is detonated during the last delay period of the blast. The main burden is moved from the face by the main production holes leaving only a small burden to be removed by the line holes on the perimeter. Charges in holes along the final perimeter are lighter than charges used in holes in the mass blasting area.

G. Lake Tap: The excavation of a segment of concrete or rock separating an underground tunnel or shaft from a body of water. The final plug is usually removed by blasting.

H. Line Drilling: A method of controlling overbreak in which a series of very closely spaced holes is drilled at the perimeter of the excavation. These holes are not charged with explosives.

I. Occupied Building: Structure on or off construction limits that is occupied by humans or livestock.

J. Peak Particle Velocity: Peak Particle Velocity (PPV): The maximum of the three ground vibration velocities measured in the vertical, longitudinal and transverse directions. PPV measurement units are expressed in inches per second (in/s).

K. Perimeter Holes: The blast holes drilled along the final limit of the excavation.

L. Presplitting: A blasting technique whereby decoupled charges are used to create continuous or semi-continuous fractures in the walls at the perimeter excavations in rock.


M. Primary Initiation: The method whereby the blaster initiates the blast(s) from a remote and safe location. Primary initiation systems use shock-tubes or electrical current to convey firing energy from the point of initiation to blast locations.

N. Production Holes: Blast holes in the main body of the rock mass being removed by drilling and blasting.

O. Prohibited Persons: Persons prohibited from handling or possessing explosive materials as defined by the seven categories described in Section 555.11 of 27 CFR (ATF Rules).

P. Residential Building: Includes single and family dwellings, hotels, motels and any other structure containing sleeping quarters.

Q. Scaled Distance: A calculated value describing relative vibration energy based on distance and charge-per-delay. For ground vibration control and prediction purposes, Scaled Distance (Ds) is obtained by dividing the distance of concern (D) by the square root of the charge-per-delay (W); so Ds = D/W0.5 or when a minimum defined scaled distance is defined to limit charge weight, W = (D/Ds)2. For example, if a blast is designed to meet a minimum scaled distance of 60, the maximum charge-per-delay for a blast located 200 feet from the structure of concern would be (200/60)2, or 11.1 pounds.

R. Smoothwall Blasting: A drilling and blasting technique using reduced hole-spacing similar to presplitting, except that the reduced charges in holes at the perimeter of the blast are detonated with adjacent mass-blast holes using the highest delay times.

S. Stemming: Crushed stone, tamped clay or other inert earth material placed in the unloaded collar area of blastholes for the purpose of confining explosive charges and limiting rock movement and air-overpressure (noise).

T. Subdrilling: The portion of the blasthole that is drilled below or beyond the desired excavation depth or limit. Subdrilling is generally required to prevent the occurrence of high or tight areas of unfractured rock or concrete between blastholes.

U. Tights: Areas of rock or soil which encroach within the minimum excavation limits.

1.5 PERFORMANCE REQUIREMENTS AND RESTRICTIONS

A. Vibration and Air-overpressure Limits: 1. The maximum peak particle velocity at the nearest residential structure shall not

exceed 0.5 in/s at all frequencies of motion. 2. The maximum peak particle velocity measured in concrete of the dam at a

distance of 100 feet from a blast in or near the dam shall not exceed 4.0 in/s at all frequencies of motion.

3. Air-overpressure at the nearest residential or commercial building shall not exceed 133 dBL, as measured with microphones having flat frequency response from 2 to 200 Hz.

4. Charge-weight-per-delay for all blasting shall not exceed 25 pounds.

B. Work Restrictions: 1. Blasting for concrete demolition work, except the tunnel, is permitted only

during daylight hours. 2. Blasting in the tunnel beyond 20 feet from the portal may occur from 8:00 AM

to 9:00 PM. 3. Rock and debris loosened or moved by blasting shall be contained so it does not

enter the White Salmon River.


1.6 SUBMITTALS

A. Blasting Plan, which shall consist of the following: 1. Blast area security and warning plan: A written warning plan describing the audible

warning system, signage, and procedures to be used to ensure that all personnel, staff, visitors, and observable wildlife are at a safe distance before blasting takes place. Allow 60 working days for approval of the blast area security and warning plan. The Contractor’s Safety Representative shall ensure that ongoing blasting work complies with all applicable regulations.

2. Explosives Transportation, Handling, and Storage Plan: at least 40 days before any explosives are brought to the site submit a plan describing proposed methods for transportation, handling, storage, and use of explosives. This plan shall include: a. A scaled map showing locations of explosive and detonator magazines and

their respective distances to nearest homes and public roadways. b. Include a listing of maximum storage quantities supported by the

American Table of Distances. c. Include a copy of inventory report forms that will be used to document

stored quantities of explosives and detonators. d. Provide a complete description and photograph of the OSHA-compliant

vehicle that will be used to transport explosive materials on site. Define what placards and fire extinguishers will be installed on the vehicle.

e. A signed letter from the Contractor’s blasting consultant confirming they have reviewed and approved the plan.

3. Penetration Tunnel Blasting Plan: at least 60 days before any holes are drilled for tunnel excavation work, submit a detailed plan for tunnel excavation blasting. This plan shall conform to all requirements in part 3.2 of these specifications. At a minimum, this plan shall include: a. Number, location, diameter, depth and orientation of drill holes on a scaled

drawing of a typical tunnel blast. b. Type of explosive and weight of charge in blastholes and smoothwall

perimeter holes. Include drawings showing typical charge configurations. c. Type of detonators and a drawing showing delay periods and firing times

for all holes. d. Type and distribution of stemming used to fill hole-collars for charge

confinement. e. Total amount of explosives in the blast and maximum charge-per-delay. f. Delay arrangement showing delay period in each hole. g. Calculations of predicted intensity of vibration and air-overpressure at the

nearest offsite residential structure. h. Description of the proposed blasting system; and type of firing source. i. Specific measures planned to block blasted tunnel concrete and rock from

entering the White Salmon River. j. Description of tag in/out system, blast warning signals, clearing, guarding

and communication procedures to confirm that all persons are evacuated to safe areas and that blast areas are secured prior to blasting.

k. A signed letter from the Contractor’s blasting consultant confirming they have either authored the blast plan or reviewed and approved it.

4. Safety Plan for Use of Explosives: A Blasting Safety Plan shall be submitted no less than60 days before any blasting work begins. This plan shall include:

a. An acknowledgement that all safety-related issues are the full responsibility of the Contractor.

b. A complete list of all authorities with contact information having jurisdiction


over blasting operations involving the transportation, day-storage, handling and use of explosives.

c. A complete description of the clearing and guarding procedures that will be employed to ensure personnel, staff, visitors, and all other persons are at safe locations during blasting. This information shall include details regarding visible warning signs or flags, audible warning signals, method of determining blast area zones, tag-out procedures, access blocking methods, guard placement and guard release procedures, primary initiation method, and the system by which the blaster-in-charge will communicate with site security guards.

d. Detailed description of how explosives will be safely transported and used at the various work sites. Plans shall explain how day-storage magazines and explosive transport vehicles will satisfy all applicable regulations. This plan shall also indicate how explosives quantities used will be documented and how explosives will be secured and guarded to prevent theft or unauthorized use.

e. Material Safety Data Sheets (MSDS) and specific details about hazard communication programs for employees.

f. Equipment that will be used to monitor the approach of lightning storms and in the event of such, evacuation and site safety security plans.

g. Contingency plans for handling of misfires caused by cut-offs or other causes. h. Fire prevention plan details, including smoking policies, procedures and

limitations for work involving any open flames or sparks, description and location of all firefighting equipment, and fire fighting and evacuation plans.

5. Explosive Handling Plan: Develop and submit administrative procedures for written approval by the Company to control the delivery, day-storage, handling, and inventory control of blasting materials. These procedures shall be submitted at least 30 days before explosives are brought to the work site.

B. Pre-Blast Conditions and Survey Report: At least 15 days before any blasting occurs, the Contractor shall submit two copies of Pre-Blast Condition Survey Reports to the Company. The purpose of these reports is to determine responsibility for repairing or restoring structures or improvements damaged by the Contractor’s operations. These reports shall be done in conformance to the requirements in part 3.7 of these specifications.

C. Lake Tap Blasting Plan: at least 60 days before any holes are drilled for the Lake Tap test blast, submit a detailed plan for the Lake Tap blast. This plan shall conform to all requirements in part 3.3 of these specifications. At a minimum, this plan shall include: 1. Number, location, diameter, depth and orientation of drill holes on a scaled

drawing of a typical tunnel blast. 2. Location and configuration of charged and reamed relief holes in two burn cuts. 3. Type of explosive and weight of charge in blastholes and smoothwall perimeter

holes. Include drawings showing typical charge configurations and locations of two detonator- primer assemblies.

4. Type of detonators and a drawing showing delay periods and firing times for all holes.

5. Total amount of explosives in the blast and maximum charge-per-delay. 6. Delay arrangement showing detonator delay periods and firing times for all holes. 7. Calculations of predicted intensity of vibration at the nearest offsite residential

structure. 8. Description of the proposed blasting system and type of firing source. 9. Description of tag in/out system, blast warning signals, clearing, guarding and

communication procedures to confirm that all persons are evacuated to safe areas and that blast areas are secured prior to blasting.


D. Concrete Demolition Blasting Plan: at least 60 days before any holes are drilled for concrete demolition work in the dam, thrust blocks, or surge tank, submit a detailed plan conforming to all requirements in part 3.4 of these specifications. At a minimum, this plan shall include: 1. Number, location, diameter, depth and orientation of drill holes on a scaled

drawing of a typical blast for all demolition applications. 2. Type of explosive and weight of typical charge. Include drawings showing

typical charge configurations. 3. Type of detonators and a drawing showing delay periods and firing times for all

holes. 4. Type and distribution of stemming used to fill hole-collars for charge confinement. 5. Total amount of explosives in the blast and maximum charge-per-delay. 6. Delay arrangement showing delay period in each hole. 7. Calculations of predicted intensity of vibration and air-overpressure at the

nearest offsite residential structure. 8. Description of the proposed blasting system; and type of firing source. 9. Specific measures planned to block blasted tunnel concrete and rock from entering

the White Salmon River. 10. Description of tag in/out system, blast warning signals, clearing, guarding and

communication procedures to confirm that all persons are evacuated to safe areas and that blast areas are secured prior to blasting.

E. Blasted Concrete and Debris Containment Plan: At least 60 days before any blasting is done to demolish concrete submit a plan describing the methods the contractor will use to contain and control blasted rock and debris. The debris control plan shall describe the containment methods and barrier structures that will be used to limit movement of blasted concrete from the tunnel and debris loosened by blasting or handling of concrete removed from the dam. This part of the plan shall specifically conform to requirements set forth in part 3.5 this specification section.

F. Permits, Certifications, and Licenses: 1. Valid Washington State blasters license. The qualifications of the blasting

supervisor or supervisors and the blaster in charge, including prior experience with similar projects, shall also be submitted.

2. Washington State blasting permits and permits required by local authorities as required for work involving the transport, handling and use of explosives.

3. Copy of Contractor’s federal ATF blasting license. 4. A copy of the federal DOT hazardous materials transportation license for the

company that will be transporting explosive materials to and from the work site on public roadways.

5. Technical specifications, catalog sheets, and calibration certificates for blast monitoring equipment.

G. Blast Reports: These records shall be submitted along with seismograph monitoring records prior to drilling holes for the next blast or within one working day after each blast, whichever is less. The blast reports shall include the following information:

1. Date, time, and location of each blast on scaled plan drawings. 2. Type of rock blasted, and round length, including amount of sub drilling if any.

3. Reference to approved blast design submittal noting any modifications. 4. Type, quantity, and weight of explosives, powder factor, total number and type of

delays used, number of holes for each delay period, maximum charge per delay, stemming used and type of detonators.

5. Name and signature of blasting supervisor, and blaster’s license number. 6. An evaluation of blast results indicating breakage, material containment results,

depth of break and planned adjustments to the next blast design. Details of any


misfires. 7. Copies of blast vibration monitoring reports including:

a. Monitoring station identification, location, date, time, and general weather conditions at the time of the blast.

b. Monitoring observer’s name. c. Distance and direction of monitoring station from blast location. d. Peak particle velocity, velocity in each component direction, peak air blast

overpressure, and corresponding frequencies for all velocity components and air-overpressure.

H. Blasting Completion Submittal: After completion of all blasting work, furnish a written statement, countersigned by the Blaster-In-Charge, certifying that: 1. All blast holes charged with explosives and any other set explosive charges

have been detonated, unloaded, or disposed of in an approved manner. 2. All blasting is complete.

1.7 QUALITY ASSURANCE

A. Qualifications: 1 . Blasters-in-charge:

a. The blasters-in-charge of tunnel and demolition blasting shall have a minimum of 10 years of experience and shall be able to document the completion of a minimum of three projects of similar scope and complexity, each including controlled blasting.

2 . Blasting Consultant: a. The Contractor shall retain an independent Blasting Consultant with at least 15

years experience involving blasting work in critical environments. The Blasting Consultant shall have directly participated in at least five projects with of similar scope and complexity. The Blasting Consultant shall directly oversee the first blast in each excavation area and actively participate in the development of preliminary blasting plans and blast design modifications based on observed results and measurements. All blasting plans and the rock debris control plans and subsequent revisions shall be reviewed by and covered with a signed letter prepared by the Blasting Consultant. The Blasting Consultant will not be required to sign the individual blast plans provided they are signed by the on-site blaster-in-charge.

b. The Blasting Consultant shall not be an employee of the Contractor or any affiliated companies or suppliers of products to the project; and the Blasting Consultant must not have any conflict-of-interest affiliations with the Company or other entities involved with the work.

c. The Blasting Consultant, and/or their representative shall be onsite full time during tunnel activities and for lake tap blasting. In addition, the Blasting Consultant will be present when initial blasts are done at each excavation area, including but not limited to concrete demolition work. The Blasting Consultant shall attend onsite meetings or open-house community meetings as requested by the Company or the Company’s representative. The Contractor shall assume that the Blasting Consultant will make at least three, two-day visits to the site.

B. Acceptance Criteria: Drilling and blasting procedures will be determined acceptable only by results achieved as blasting operations progress. If drilling and blasting operations produce unacceptable results such as overbreak, tights, fly rock, unacceptable air-overpressure, or excessive vibrations, revise blasting plans to employ methods which shall produce acceptable


results. Revisions may include reductions in blast size, modified spacing or burden of blast holes, using different delay patterns, or combination thereof. At the request of the Engineer, submit revised blasting plans, incorporating the recommendations of the blasting consultant, for review prior to proceeding with further blasting operations. Perform this work at no additional cost to the Company.

C. The Engineer’s review of the Contractor’s blasting plans shall not relieve the Contractor of any of his responsibilities under the Contract for assuring the complete safety of his operation with respect to adjacent improvements and so as to not aggravate existing structural conditions or cause damage or for the successful completion of the work in conformity with the requirements of the Contract Documents. Blasting plan review shall not operate to waive any of the requirements of the Contract Documents nor relieve the Contractor of any regulation, permit obligation or condition therein.

D. Blasting Kickoff Meeting: Hold a pre-blasting meeting at least seven calendar days, but not more than 10 calendar days prior to the first blast scheduled to review: 1. Results of pre-blast survey. 2. Blasting procedures. 3. Safety and coordination requirements. 4. Blasted concrete and debris containment measures. 5. Monitoring criteria. 6. Environmental considerations. 7. Post-blast reporting requirements. 8. Other blasting-related issues required by the Company.

1.8 JOB CONDITIONS: Refer to previous Concrete Testing Data of cores completed for the 1972 Inspection Report for a description of anticipated conditions of the concrete. These reports can be found within the Project Removal Report by Mead & Hunt, Inc.

1.9 SEQUENCING AND SCHEDULING: The Contractor shall coordinate work with that of other parties and shall cooperate fully with the Company in maintaining orderly progress towards completion of the scheduled work.

1.10 PRODUCT DELIVERY, DAY-STORAGE, HANDLING AND SECURITY

A. General: 1. Handle, transport, use, control, store, and monitor all blasting materials as

prescribed by the most stringent rules promulgated by the provisions specified in federal, state, other applicable local codes and ordinances, and manufacturer’s recommendations.

2. Explosive deliveries, day-storage, handling and use shall conform to the approved Explosive Handling Plan.

B. Transportation: 1. All explosive transportation done on the site shall be done in strict

accordance with federal OSHA and State of Washington rules. 2. Deliveries of explosives to and from the site shall be done is strict

accordance with federal DOT Patrol rules.


C. Storage: 1. Magazines used to store explosives and detonators shall be established

with full conformance to ATF and State of Washington rules. 2. The Contractor shall have explosive inventory records available for inspection

by the Company and all appropriate government agencies upon request. 3. Use explosives, blasting agents, primers, initiators, and ancillary blasting

materials that are boxed with date codes. Store materials so that the date code is easily ascertainable.

4. Maintain copies of all bill-of-lading records showing quantities and date codes of explosives and initiation devices taken to and from the job.

D. Security: 1. The responsible Contractor holding the ATF license for this work shall ensure the

security of explosive materials at all times when explosive materials are used or kept on the project site and the Contractor shall ensure that: a. All persons that handle explosive materials, have control over them, or access

to them, must not be prohibited persons, as defined in Section 555.11 of 27 CFR (ATF Rules).

b. All blasting work and explosive handling activities are done under the direct supervision of a properly licensed blaster-in-charge.

c. When explosives are delivered to the work sites, they must not be unloaded from delivery vehicles until a responsible blaster-in-charge shall signed the delivery paperwork and assumes full authority and responsibility for the security of the explosive materials. Unused explosive materials must be similarly signed over to a properly licensed driver with a Commercial Drivers License with a Hazmat endorsement before explosive materials are loaded onto a fully-DOT-compliant vehicle for removal from the site.

d. The Contractor shall maintain copies of ATF Employee Possessor questionnaire forms (OMB No. 1140-0072) or documentation of ATF clearance on the Contractor’s ATF license for all employees who will possess, handle or have access or control over explosives for this work as defined in 27 CFR Part 555. This documentation must be available upon request by the appropriate authorities or the Company. Contractor and subcontractor employees, without submitted evidence of satisfactory ATF clearance, must not handle, control or have access to explosive materials.

PART 2 – PRODUCTS

2.1 MATERIALS

A. Use only non-electric or electronic initiation systems that are not affected by radio or other interference, or susceptible to static discharge.

B. Use only explosives, explosive components and detonators commercially manufactured within 12 months of the time of use.

2.2 EQUIPMENT

A. Employ a positive means of dust control on equipment used for drilling holes in


conformance with the Dust Control Plan.

B. Seismographs used to monitor blast-induced ground motion and air-overpressure shall conform to the following standards. 1. Instruments shall have four channels to record 3-component ground motion

and air- overpressure. 2. Hardware/software systems shall be capable of providing a permanent, hardcopy

record of particle velocity and air-overpressure time-intensity plots. 3. Ground motion transducers and recording instruments shall have a flat

frequency response from 2.0 to 200 Hz. 4. Instruments shall be capable of measuring ground motion between 0.005 and 10.0

in/s. 5. Microphones and recording equipment shall be capable of measuring air-

overpressures between 80 dBL to 140 dBL overall peak sound level (0.00003 psi to 0.03 psi), with a flat frequency response between 2.0 and 250 Hz.

PART 3 - EXECUTION

3.1 GENERAL

A. Perform blasting operations in a manner to: 1. Protect persons, animals, existing structures, and the environment. 2. Comply with specified vibration and air-overpressure limits. 3. Control movement of blasted concrete and debris. 4. Comply with rules of all regulatory agencies.

B. Prior to blasting, obtain the blasting permits/licenses required by Washington State, and any other agency having jurisdiction. Investigate all permit and licensing requirements during bid preparation and perform the work in accordance with these conditions, ordinances, permits and licenses at no additional cost to the Company.

C. Perform all blasting operations under the direct supervision of the blaster-in-charge and in the presence of the Company or their representative.

D. After blasting, thoroughly examine the work for missed holes and unexploded explosives. Remove all loose and shattered rock that may endanger the work or the workers and make the excavation safe before proceeding.

3.2 TUNNEL BLASTING

A. The tunnel should have an arched crown with a 14 feet radius on top of a rectangular base with dimensions of 18 feet wide and 10 feet high. The width and height of the tunnel can be adjusted by ±2 feet and the cross sectional area of the tunnel should be kept at approximately 220 square feet. Any adjustments to the tunnel dimensions should not compromise the maximum tunnel hydraulic capacity of 11,600 cubic feet per second (cfs) at the pool level of EL. 285 and a minimum 4-foot separation must be provided between the tunnel roof and the bottom of the tendon anchors, which are at EL. 193±, based on the Company datum. Any significant changes to these dimensions must be submitted within the Blasting Plans.

B. The length of the first tunnel blast shall not exceed four feet and the perimeter of the tunnel shall be line-drilled with holes drilled on 4-inch centers.


C. The diameter of explosive charges used for tunnel blasting shall not exceed 1.5 inches.

D. Holes shall be stemmed with clay dummies or other appropriate stemming material as required to assure that air-overpressure conforms to the 133-dBL limit at the nearest residential structure.

E. Smoothwall blasting methods shall be used to control overbreak. Smoothwall blast design shall conform to the following: 1. The linear weight of the column charge, excluding a 0.5-pound or less primer

charge at the toe of the hole, shall not exceed 0.33 pounds. 2. Smoothwall blasting shall be done in all portions of the tunnel perimeter located

two feet above the tunnel floor. 3. The spacing of smoothwall holes shall not exceed 20 inches. 4. The hole-lookout angle of perimeter holes required to create drill room

shall be minimized to provide no more than 8 inches of overbreak at the toe of the holes.

3.3 LAKE TAP BLASTING

A. When the dam-penetration-tunnel is excavated within 25 feet of the location of the upstream face of the dam, the Contractor shall cease tunnel excavation work and drill a cored probe hole to verify the location of the upstream breakthrough location. Flow of water in the cored probe hole shall be stopped by installing a packer in the hole within two feet of the breakthrough point and the remaining portion of the hole shall be sealed with concrete grout. The Contractor shall log all discontinuities like cold joints and the final length of the coring to breakthrough. The cored concrete shall be placed in a standard coring box and be made available for inspection by the Company.

B. As the tunnel nears breakthrough, the depth of blasted rounds shall be modified to create a tunnel face located 15 to 17 feet from the final breakthrough location. At this point, the tunnel shall be excavated mechanically using drills and rock-splitting tools until the tunnel is within 8 feet of the breakthrough location. The last remaining 8-foot plug of concrete, referred to as the “Lake Tap” in these specifications and related documents, shall be removed by blasting using special methods defined in this section.

C. Holes drilled in the lake tap blast shall not be drilled closer than 2 feet from the breakthrough face of the upstream face of the dam. Clamps shall be installed on drill steel or some other positive means of preventing over drilling shall be used to assure that the desired length of holes is not exceeded. In the event that a hole does produce water, the Contractor shall have appropriately sized inflatable packers on hand to seal it.

D. The design and execution of the tap blast shall incorporate the following measures: 1. For redundancy, the final tap round shall have two separate burn cuts. 2. All holes shall be primed with two separate detonator-primer assemblies. 3. A closed-loop detonating cord trunkline shall be used to assure that there is at

least two paths of initiation to all holes. 4. All holes shall be charged with phlegmatized NG-dynamite explosives

(PowerDitch 1000, DGEL 1000 or equivalent) that are immune to dead-pressing.

5. The design of the tap blast conforming to all the standards herein shall be tested in a tunnel blast before the tunnel is mined within 15 feet of the final breakthrough point.


E. Details of the design and use of concussion charges used to clear debris via a vertical hole through the dam must be included within the Blasting Plans for review.

F. Any design or use of excavated pits within the floor of the tunnel, also known as rock traps, must be included within the Blasting Plans for review.

3.4 CONCRETE DEMOLITION BLASTING

A. The Contractor shall develop blasting methods similar to those used in dimension stone quarries whereby concrete would be generally split into rectangular blocks that can be removed by hoisting with cranes or yarders.

B. The maximum diameter of explosives used to split concrete in to manageably sized blocks to facilitate its removal shall not exceed 1.0 inch.

C. All explosive charges shall be stemmed with clean crushed stone or tamped clay dummies and the height of stemming shall be at least 25 charge diameters. For example, if the charge diameter is 1.0 inches minimum length of stemming shall be 25 inches [25 x 1.0].

D. The vertical depth of concrete quarry excavation benches shall not exceed 8 feet.

E. The Company may suspend concrete blasting work at any time if blasting methods used to fracture concrete create excessive fragmentation and loss of concrete to the river or surrounding area. Any delays caused by these stoppages will occur at the Contractor’s expense.

3.5 CONTAINMENT AND CONTROL OF BLASTED ROCK AND DEBRIS

A. The Contractor shall use whatever methods are necessary to control movement of blasted concrete, rock and other loosened debris. At a minimum, initial measures shall include following control measures: 1. Install a substantial canopy over the tunnel portal to assure that no debris or

dropped items can harm workers in or near the tunnel. The tunnel portal canopy shall extend at least 30 feet downstream from the tunnel entry and shall be designed to withstand the impact of a 200-pound piece of concrete falling 100 feet. The design of the canopy shall be done by and stamped by a professional engineer registered in the State of Washington.

2. For all work, the cumulative amount of debris entering the White Salmon River shall be kept to a minimum. The Contractor shall use deflection shields, barriers, blast mats and other devices of their own design. If significant amount of debris enters the river after any one blast, the Company may stop all excavation work until the Contractor has submitted a new containment plan.

3. Using all possible methods, any concrete or other man-made material debris that does enter the river shall be removed by the Contractor at their own expense.

3.6 NOTIFICATION

A. No blasting shall be permitted until the Contractor receives notification in writing from the


Company that the blasting plans have been reviewed and all pre-blast inspections and reports have been completed and submitted as required.

B. Skamania County Fire Department Notification: At least 10 days before blasting work begins, submit a copy of a written letter to the Chief of Skamania and Klickitat County Fire Departments that includes details regarding expected blasting time period, maximum on site day-quantities and hazard class of explosives and detonators, and emergency contact phone numbers. The notification letter shall also be accompanied by a scaled map showing locations of explosive and detonator magazines and an emergency contacts listing of Contractor’s blaster-in-charge, manager and other key persons. The emergency contact listing shall include names, titles, cell and home phone numbers.

C. Blasting Notifications Report: At least 10 days before blasting begins, provide a summary report to the Company with a listing of all people, companies and agencies notified about impending blasting work. Include name of contacted persons, date, time and other pertinent information.

D. Complaint Notifications: Written notification of all blasting complaints shall be submitted to the Company within eight hours of receipt by the Contractor. Include date and time of the complaint, the nature of the complaint, and a contact name and telephone number.

3.7 INSPECTION REQUIREMENTS

A. Pre-construction condition survey reports shall be done to document the condition of all structures and improvements located within 1,500 feet of all potential excavations where rock blasting methods might be used. 1. Surveys shall be done by a third-party specialist with at least 5 years of

experience in surveying structures at a minimum of five projects with similar complexity to the proposed work.

2. Reports shall be typed and at a minimum shall include: name of property owner, address, contact phone number(s), description of methods and materials used to build structures and other facilities of concern. All major cracks, structural defects, deterioration of structural elements and other observed conditions shall be noted in the written text.

3. Reports shall also document sources and quality of water supplied to structures. If water is supplied by wells, the condition and approximate age of water wells shall be documented. In high risk cases, the Company’s Representative may request that an independent well-service professional be called in to document perform a pump test and water quality analysis. In such cases, the Contractor will be reimbursed for the documented cost of the well inspection(s).

4. Reports shall include color photographs. Photos must be taken of all cracks and other damaged, weathered or otherwise deteriorated structural conditions. Photos shall contain an accurate date stamp.

5. A walk-through video-tape with audio commentary shall be done for each surveyed structure or improvement within the specified survey boundaries. Audio comments shall include name(s) of survey staff, property type, name of owner, date and time of survey, and comments about the condition of the observed structure. Video-audio tapes shall be made with digital quality camcorders and two copies shall be submitted in DVD format Disks attached to three submitted copies of written reports.



3.8 PREPARATION

A. For each blast, ensure that at least three properly operating seismographs are in place at required locations or at locations mutually agreed to by the Contractor and the Company as required in Section 3.9.

B. Personnel: 1. The Blaster-in-charge shall ensure that all non-essential personnel are prevented

from entering blast sites during blast charging operations. 2. For each blast, the Blaster-in-charge shall establish a safe blast-area perimeter

distance and ensure that all personnel are beyond the safe zone prior to initiating the blast.

3. Follow all blast warning, clearing and guarding requirements.

C. Ensure that concrete and rock containment measures are in place and adequate for the size and location of all blasts.

D. Any delays to the Contractor’s operations resulting from the establishment of a safe zone or failure to coordinate with specified contractors shall be at no additional cost to the Company.

3.9 INSTRUMENTATION AND MONITORING

A. For all blasts, monitor blast-induced ground vibration and air-overpressure at a minimum of three locations. One instrument shall be located at the closest residence. A second instrument shall be located on the dam approximately 100 feet from the blast location at a location approved by the Company. A third instrument shall be located at a location mutually agreed to by the Contractor and Company.

B. Furnish and maintain at least three functional seismographs conforming to the standards specified herein.

C. All vibration and air-overpressure measuring equipment shall be used in accordance with the standards established by the Vibration Section of The International Society of Explosives Engineers (ISEE).

END OF SECTION

SECTION 31 41 16 METAL SHEET PILING

PART 1 GENERAL

1.1 SUMMARY

A. This section is applicable if the contractor chooses to utilize metal sheet piling for temporary site access, road and retaining wall construction, staging areas, powerhouse draft tube closure, and as otherwise necessary to complete the work.



B. Related Sections include the following: 1. Division 01 – General Conditions 2. Section 01 53 00 – Temporary Construction 3. Section 01 55 13 – Temporary Access Roads 4. Section 02 41 00 – Demolition and Deconstruction

1.3 REFERENCES

A. The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. 1. American Welding Society (AWS) 2. ASTM International (ASTM) 3. Quality Control and Inspection Program (QCIP)

1.4 SUBMITTALS

A . Shop Drawings

B . Pile Driving Plan and Record for Permanent Sheet Piles

1.5 DELIVERY, STORAGE, AND HANDLING OF PERMANENT SHEET PILES

A. Materials delivered to the site shall be new and undamaged and shall be accompanied by certified test reports. The manufacturer's logo and mill identification mark shall be provided on the sheet piling as required by the referenced specifications. Sheet piling shall be stored and handled in the manner recommended by the manufacturer to prevent permanent deflection, distortion or damage to the interlocks; as a minimum, support on level blocks or racks. Storage of sheet piling should also facilitate required inspection activities and prevent damage to coatings and corrosion prior to installation.


1.6 EQUIPMENT

A. As part of the Pile Driving Plan for Permanent Sheet Piles, submit descriptions of pile driving equipment to be employed in the work. Descriptive information includes manufacturer's name, model numbers, capacity, rated energy, hammer details, cushion material, helmet, templates, and jetting equipment.

1.7 PERMITS

A. Contractor shall be solely responsible for obtaining all permits necessary to complete the work.

1.8 PERFORMANCE

A. General performance: Sheet pile shall be free of defects and withstand the effects of loads and stresses of its intended purpose.

PART 2 - PRODUCTS

2.1 METAL SHEET PILING

A. Metal sheet piling may consist of any of the following: Hot-rolled steel sections conforming to ASTM A 328/A 328M; hot-rolled, light-duty steel sections conforming to ASTM A 572/A 572M Grade 50; cold-formed steel sections formed from hot-rolled steel meeting the chemical and mechanical requirements of ASTM A 328/A 328M or cold-formed, light gauge steel sections conforming to ASTM A 857/A 857M.

B. Interlocks: The interlocks of sheet piling shall be free-sliding, provide a swing angle suitable for the intended installation but not less than 5 degrees when interlocked, and maintain continuous interlocking when installed.

C. General Requirements: Fabricated sections shall conform to the piling manufacturer's recommendations for fabricated sections. Sheet piling shall be provided with standard pulling holes.

2.2 APPURTENANT METAL MATERIALS

A. Metal plates, shapes, bolts, nuts, rivets, and other appurtenant fabrication and installation materials shall conform to manufacturer's standards.

2.3 MATERIALS TESTS

A. Testing of sheet piling shall meet the requirements of ASTM A 6/A 6M.

PART 3 - EXECUTION


3.1 INSTALLATION – PERMANENT SHEET PILING

A. Pile Driving Equipment: Pile driving equipment shall conform to the following requirements. 1. Driving Hammers: Hammers shall be steam, air, or diesel drop, single-acting,

double- acting, differential-acting , or vibratory type. The driving energy of the hammers shall be as recommended by the manufacturer for the piling weights and subsurface materials to be encountered. Repair damage to piling caused by use of a pile hammer with excess delivered force or energy.

2. Jetting Equipment: Jetting may be used.

B. Placing and Driving 1. Placing: Any excavation required within the area where sheet pilings are to be

installed shall be completed prior to placing sheet pilings. Pilings properly placed and driven shall be interlocked throughout their length with adjacent pilings to form a continuous diaphragm throughout the length or run of piling wall. a. Pilings shall be placed plumb and not exceeding 1/4 inch per foot of length

and true to line. Check all piles for heave. b. Temporary walls, templates, current deflectors or guide structures shall be

provided to insure that the pilings are placed and driven to the correct alignment.

2. Driving: Pilings shall be driven with the proper size hammer and by approved methods so as not to subject the pilings to damage and to ensure proper interlocking throughout their lengths. a. Driving hammers shall be maintained in proper alignment during

driving operations by use of leads or guides attached to the hammer. b. A protecting cap shall be employed in driving when using impact hammers to

prevent damage to the tops of pilings. Pilings damaged during driving or driven out of interlock shall be removed and replaced at the Contractor's expense.

c. Adequate precautions shall be taken to insure that pilings are driven plumb. d. Pre-augering or spudding of piles may be used.

C. Inspection of Driven Piling: Perform continuous inspection during pile driving. Inspect all piles for compliance with tolerance requirements. Bring any unusual problems that may occur to the attention of the Company. The Contractor shall inspect the interlocked joints of driven pilings extending above ground. Pilings found to be out of interlock shall be removed and replaced at the Contractor's expense.

3.2 INSTALLATION – TEMPORARY SHEET PILING

A. The Contractor is responsible for determining suitable installation methods for temporary sheet piling, as well as ensuring that temporary installations and methods serve the intended purpose and comply with all applicable safety regulations.

3.3 REMOVAL

A. Pulling: Care shall be exercised during pulling of pilings to avoid damaging adjacent construction. If the Company determines that adjacent permanent construction has been damaged during pulling, the Contractor will be required to repair this construction at no cost to the Company.



B. Fully restore all areas damaged in accessing the site or installing piles.

3.4 INSTALLATION RECORDS

A. For permanent sheet piling, maintain a pile driving record for each sheet pile that is to remain on-site. Indicate on the installation record: installation dates and times, type and size of hammer, rate of operation, total driving time, dimensions of driving helmet and cap used, blows required per foot for each foot of penetration, final driving resistance in blows for final 6 inches, pile locations, tip elevations, ground elevations, cut-off elevations, and any re-heading or cutting of piles. Record any unusual pile driving problems during driving. Submit complete records to the Company.

END OF SECTION

SECTION 32 90 00 REVEGETATION AND WETLANDS MANAGEMENT

PART 1 – GENERAL Introduction This section provides specifications for the establishment of permanent vegetation and wetlands on the decommissioned areas of the Project and on work areas, staging areas, and decommissioned temporary roads by the Contractor. Contractor is responsible for the control of weeds on the deconstruction work areas, staging areas, and temporary roads during the active, decommissioning construction period. Control of weeds on the drained reservoir areas of the Project will be the responsibility of Klickitat County. The County will be responsible to control weeds on the deconstruction work areas, staging areas, and temporary roads after the contractor completes plantings on these areas and demobilizes off the site. 1.1 SUMMARY

A. Section Includes: 1. Installation of vegetation and monitoring of wetland development and vegetation

success during the post-decommissioning phase of the Project on construction areas and temporary roads and the decommissioned areas of the Project.

2. These specifications and all work performed by the Contractor shall adhere to the guidance of the Revegetation and Wetlands Management Plan prepared for this Project.

B. Related Sections include but are not necessarily limited to:

1. Division 1 - General Requirements. 2. Division 31 – Earthwork:

a. Section 31 00 00 Earthwork. 3. Division 32 – Exterior Improvements:

b. Section 32 90 00 - Planting.

C. Related Management Plans: 1. Erosion Control Plan 2. Sediment Assessment, Stabilization, and Management Plan 3. Recreational Facility Removal and Improvements Plan



1.2 SUBMITTALS


of the submittal process. 2. The Contractor will develop a detailed planting plan. 3. The Contractor will provide detailed wetland progress maps.

B. The Contractor will indicate the point of origin and certification of:

1. Herbaceous and woody species. 2. Certification of all materials as weed free. 3. Proposed chemical and pesticide labels and analysis.




1.4 SITE CONDITIONS



A. Coordinate and reschedule work as required to preclude interference with other operations. B. The Contractor will carry out all seedings and plantings in accordance with accepted

agronomic practice and as influenced by local soil and moisture conditions.


A. The Contractor shall protect from invasion by noxious weeds the deconstruction work areas, staging areas, and temporary roads during the active, decommissioning construction period.

B. The Contractor shall protect all plantings of the former reservoir area from mammal and arthropod herbivory and mechanical damage.

C. The Contractor will designate by name a State of Washington Certified Pesticide Applicator for control of noxious weeds for the deconstruction work areas, staging areas, and temporary roads.

D. Inspection of the deconstruction work areas, staging areas, and temporary roads will be carried out in accordance with the State of Washington guidelines for control of noxious weeds and as referenced in the Revegetation and Wetlands Management Plan prepared for this project.

PART 2 – PRODUCTS 2.1 ACCEPTABLE MANUFACTURERS

A. Subject to compliance with the Contract Documents, the following guidelines are to be adhered to in plant materials selection by the Contractor:

1. Plant materials are to be rated as ecologically suited for their intended use. 2. Plantings will be made using certified seed and nursery stock.

2.2 MATERIALS

A. Only species adapted for use at the project site will be allowed. B. All pesticides (including but not limited to: herbicides, insecticides, fungicides,

rodenticides, etc.) shall be applied according to the registered label for use in the State of Washington.


C. Soil amendments, mulches, and tree protection devises shall be rated as non-toxic to aquatic organisms.

PART 3 - EXECUTION 3.1 PREPARATION

A. Local and State Agency Requirements 1. The Contractor shall carry out all site preparation in accordance with the

erosion and sediment control requirements of local and state agencies. 2. The Contractor shall be required to obtain all pertinent stormwater and pollution

control permits. B. The Contractor shall review the Revegetation and Wetlands Management Plan attached to this

section of the specifications. C. The Contractor will coordinate planting activities with sediment assessment, removal, and

stabilization program in order to optimize establishment of permanent vegetative cover. D. Deficiencies or changes in the Revegetation and Wetlands Management Plan as it is applied

to conditions at the Project site will be brought to attention of the Project Manager for correction.

3.2 IMPLEMENTATION OF REVEGETATION MEASURES

A. Provide material data sheets, manufacturer’s catalog specifications, and certification data regarding the proposed plant materials which will be used during the revegetation efforts for review by the Company.

B. Provide data regarding the installation of all revegetation materials and methods for review by the Company.

C. The Contractor will assess the condition of the soil remaining after a determination has been made that they are geotechnically stable and determine if they are suitable for revegetation. 1. The contractor will provide recommendations to the Company on the actions to be

taken to bring the soils into an agronomically suitable condition for revegetation. D. The Contractor will utilize the seed mix and species composition tables in the Revegetation

and Wetlands Management Plan to develop a suitable planting plan. 1. The Contractor may substitute species that ecologically adapted to the site and can be

shown to perform as well or better than those provided in the Revegetation and Wetlands Management Plan.

E. The areas to be revegetated are those areas detailed in the Revegetation and Wetlands Management Plan. The following areas will be revegetated after it has been determined that they are stable: 1. The Upland Areas, consisting of approximately 20 acres. 2. The Riparian Areas, consisting of approximately 3 acres 3. The Wetland Areas, consisting of approximately 4.8 acres (this contingent upon

the success of the success of the naturally occurring wetland vegetation reestablishing itself).

F. The Contractor will be responsible for the control of all noxious weeds during the active, decommissioning construction period for the deconstruction work areas, staging areas, and temporary roads until these areas are planted and the Contractor demobilizes off site.

G. Successful revegetation will based upon the criteria established and set forth in the Revegetation and Wetlands Management Plan prepared for this Project.

H. Clean Up: 1. Transport debris and legally dispose of off-site.



3.3 IMPLEMENTATION OF WETLAND ESTABLISHMENT AND MONITORING MEASURES

A. The Contractor will be responsible for monitoring the progress of the wetlands reestablishment.

B. Successful wetlands reestablishment will be based upon the criteria established and set forth in the Revegetation and Wetlands Management Plan prepared for this Project.

C. The Contractor will report to the Company according to the schedules established and set forth in the Revegetation and Wetlands Management Plan prepared for this Project on the progress towards meeting the wetland reestablishment goals for the Project.

3.4 INSPECTION OF REVEGETATION AND WETLAND MONITORING MEASURES

A. The Contractor will be responsible for assuring that all inspection of the revegetation plan is carried out in accordance with the Revegetation and Wetlands Management Plan prepared for this Project. These responsibilities include: 1. Assuring and certifying the Contractor’s planting sequence is in conformance

with the specified schedule. 2. Providing detailed reports on the condition and success of the revegetation

plan in accordance with the specified schedule. 3. Controlling noxious weeds in conformance with the State of Washington regulations.

B. The Contractor will be responsible for monitoring the development of wetlands at the Project and reporting on their status to the Company.

END OF SECTION

SECTION 35 20 23 DREDGING

PART 1 - GENERAL

1.1 SUMMARY

A. The work in this section shall include furnishing all required equipment and materials to excavate sediment and woody debris from the upstream face of the dam in the area of the drainage tunnel and upstream pilot channel.



B. Related Sections include the following: 1. Division 01 – General Conditions 2. Section 01 55 13 – Temporary Access Roads 3. Section 31 00 00 – Earthwork

1.3 REFERENCES

A. The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only. 1. Quality Control and Inspection Program (QCIP) 2. Woody Debris Management Plan

1.4 DEFINITIONS

A. Hard material is defined as material requiring blasting or the use of special equipment for economical removal, and includes boulders or fragments too large to be removed in one piece by the dredge.

B. Artificial Obstructions: Artificial obstructions may include one or more abandoned vehicles, boats, and miscellaneous debris.

1.5 SUBMITTALS

A . Dredging Plan

B . Soundings or Sweepings


1.6 MATERIAL TO BE REMOVED

A. The material to be removed is sediment and artificial obstructions from the upstream face of the dam to clear the required upstream pilot channel.

B. Debris too large to be removed by dredging will be removed using an alternate method such as clamshell buckets or other methods proposed by the Contractor and approved by the Company.

1.7 QUANTITY OF MATERIAL

A. Complete the work specified whether the quantities involved are greater or less than those estimated.

1.8 SIDE SLOPES

A. Dredging on side slopes shall follow, as closely as practicable, the lines specified. The amount of material excavated from side slopes will be determined by cross-sections.

1.9 PERMIT

A. The Contractor shall comply with all Federal, State, and local permits, regulations, laws, ordinances, and rules.

PART 2 - PRODUCTS (NOT USED)

PART 3 - EXECUTION

3.1 INSPECTION

A. The Company will keep a record of work performed and will require that gages, ranges, and other markers are usable for the intended purpose. Furnish, at the request of the Company, boats, boatmen, laborers, and materials necessary for inspecting, supervising, and surveying the work.

3.2 CONDUCT OF DREDGING WORK

A. Order of Work: The Company will direct the Contractor on the order of work. The Company reserves the right to change the order of work at any time.

B. Ranges, Gages, and Lines: Furnish, set, and maintain ranges, buoys, and markers needed to define the work and to facilitate inspection. Establish and maintain gages in locations observable from each part of the work so that the depth may be determined. Suspend dredging when the gages or ranges cannot be seen or followed.



C. Disposal of Excavated Material: Provide for safe transportation and disposal of dredged materials. Transport and dispose of dredged material in an area approved by the Company. The deposit of dredged materials in unauthorized places is forbidden. 1. Disposal in Indicated Fill Areas: In depositing excavated material for fill, uniformly

grade and allow for shrinkage. Provide and maintain necessary bulkheads, dikes, ditches, weirs, spillways, and other construction necessary to confine and retain the fill in the dredge fill area. Dredged materials may be disposed of in upstream portion of reservoir.

2. Refer to the Woody Debris Management Plan for additional guidance for handling and disposing of dredged woody debris.

D. Navigation Warnings: Furnish and maintain navigation warning signs along the area of work.

E. Salvaged Material: Anchors, chains, and other articles of value, which are brought to the surface during dredging operations, become the property of the Contractor and shall be deposited off-site.

F. Safety of Structures: The prosecution of work shall ensure the stability of piers, bulkheads, and other structures lying on or adjacent to the site of the work, insofar as structures may be jeopardized by dredging operations. Repair damage resulting from dredging operations, insofar as such damage may be caused by variation in locations or depth of dredging, or both, from that indicated or permitted under the contract.

3.3 FINAL EXAMINATION AND ACCEPTANCE

A. As soon as practical after the completion of areas, which in the opinion of the Company, will not be affected by further dredging operations, each area will be examined by the Company by sounding or sweeping, or both. Remove shoals and lumps by dragging the bottom or by dredging. The Contractor will be notified when soundings or sweepings are to be made and will be permitted to accompany the sounding or sweeping party and to inspect the data and methods used in preparing the final estimate. When areas are found to be in a satisfactory condition, the work therein will be accepted as complete. Final estimates will be subject to deductions or correction of deductions previously made because of excessive over-depth, dredging outside or authorized areas, or disposal of material in an unauthorized manner.

END OF SECTION