Attachment_1a_Revised_Statement_of_Work_GrantGrove_NTCRA_(with_Amendment_3)_0003.pdf

Removal of Impacted Soil at Grant Grove Burn Dumpsite Kings Canyon National Park Attachment 1a: Revised Statement of Work

Attachment 1a incorporates clarifications provided during solicitation in Attachment 4 plus new work tasks in Section 12. Changes are in red font.

1. Introduction.

1.1. The National Park Service (NPS) has the responsibility under the Comprehensive Environmental Response, Conservation and Liability Act (CERCLA, 42 U.S.C. §§9601 et seq.)

to determine if potential hazardous substances exist within each NPS unit.

1.2. The results of an Engineering Evaluation/Cost Analysis (EE/CA) have identified levels of contaminants in soil that require removal at Grant Grove Burn Dumpsite Solid Waste Management Unit No. 38 at Sequoia and Kings Canyon National Parks (SEKI).

1.3. The contractor will implement a previously-developed Non Time-Critical Removal Action work plan (NTCRAWP, Attachment 2) to remove contaminated soil and debris, transport it to appropriate disposal facilities, and prepare a Response Action Completion Report. The work includes field and lab analyses of soil samples in addition to preparation of reports and other documentation required for this type of CERCLA action.

1.4. The EE/CA estimates removal of ~7,400 in-place (aka bank) cubic yards, or ~9,620 truck cubic yards, or ~9,988 tons of [presumed Class II non-hazardous] soil and debris.

1.5. The NTCRAWP is supplemented by this Statement of Work (SOW).

2. Site Information.

2.1. The NPS identified an old dumpsite during inspections of the Grant Grove area within the Giant Forest at Kings Canyon National Park. In 19981 and 20012, two site investigations reported that materials present on the surface of the dump pile consisted of wood, concrete, asphalt fragments, and other debris. The contents of the dump fill consisted mostly of burn materials.

Some of the observed fill materials consisted of ash, metal, glass, sheet metal, porcelain, aluminum pans and pitchers, wire, pipes, metal paint cans, wood chips and roots.

2.2. The Site Inspection (SI, 1998) and expanded Site Assessment (SA, 2001) indicated that CERCLA hazardous substances were present at elevated concentrations in materials and soils in the dump area. Because the exact locations of samples collected during both investigations are not clearly identified, and composite samples were collected mixing suspected clean soil with impacted soil, the extent of contamination was not clearly defined. This represents a gap in the Site characterization. The NPS and California Department of Toxic Substances Control (DTSC) reviewed all available Site information and concluded that the SI and expanded SA did not completely characterize the nature and extent of contamination for purposes of conducting a Non-Time Critical Removal Action. To address these gaps in the characterization of contamination, NPS contracted Environmental Cost Management to prepare and perform a Work Plan to address the remaining data needs for a complete Site characterization and the preparation of the EE/CA Report.

2.3. Based on the information presented in the September 2018 EE/CA Report and previous investigations, it is recommended to implement excavation and off-site disposal. This alternative is the most protective of human health and ecological resources and it will eliminate the potential

1 Kleinfelder, 1998.

2 Kleinfelder, 2002.

for environmental impacts, in the short- and long-term, immediately after completion, meeting all the evaluation criteria.

2.4. See final Engineering Evaluation/Cost Analysis Report at SEKI EE/CA for additional information.

2.5. For general information about the park, visit Sequoia & Kings Canyon National Parks (U.S. National Park Service) (nps.gov)

2.6. Electricity – There is no electrical service available at the project Site. Contractor shall provide source for power and lighting. Temporary Electrical: Temporary electrical work shall meet requirements of NFPA 70-1996 (NEC), Article 305.

2.7. Water – No water is available on Site for Contractor’s use. Contractor shall provide water for Site use. Furnish cool, potable water for personnel in locations convenient to work areas.

Water for dust abatement should be available in the Grant Village area, most likely near the maintenance yard. The contractor must supply a backflow device and meter, install them per industry standards, and remove them prior to de-mobilization inspection. NPS will charge the contractor the 2024 rate (not yet determined).

2.8. Establishing a camp within Sequoia or Kings Canyon National Park is prohibited.

Contractor’s employees may stay in campgrounds or lodging open to visitors.

2.9. Cellular phone service – Most carriers provide at least a minimal level of reception at the site, but reception is spotty and repeaters are subject to winter damage.

2.10. Site access. The maximum gross vehicle weight on SEKI roads for all activities in this SOW are 80,000 pounds gross vehicle weight, 20,000 pounds on a single axle, and 34,000 pounds on a tandem axle group.

3. General Requirements.

3.1. Work shall be performed in accordance with (IAW) this Statement of Work (SOW, Attachment 1) and Attachment 2, Grant Grove NTCRA WP. The Contractor shall supplement the plans as specified below and as they deem necessary to complete the work safely and effectively. In no case shall the Contractor’s planning supplements delete or relax NPS requirements.

3.2. In the event of a conflict or ambiguity between the SEKI NTCRA WP and this SOW, notify the CO and COR for resolution. In general, the requirements in this Statement of Work take precedence over the work plan.

3.3. Safety Requirements. The Contractor shall comply with 29 CFR 1910.120(b), EM-385-1- 1, and all relevant and applicable safety regulations as promulgated by OSHA and Cal/OSHA.

Additionally, the Contractor shall adhere to all generally accepted and professionally practiced safety standards.

3.4. Comply with regulations of the NPS or other authority having jurisdiction, governing the protection of land that includes or is adjacent to the project.

3.5. At all times the Contractor shall conduct their organization in conformance with the rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and with such appropriate regulations as the park Superintendent may prescribe (refer to https://www.nps.gov/SEKI/learn/management/lawsandpolicies.htm; the contractor must comply with the rules in effect at the time work is underway).

3.6. Coordination with the NPS

3.6.1. The Contractor shall maintain close and continual coordination with the NPS to assure adequate and timely flow of information.

3.6.2. The NPS will administer the contract and provide management of NPS activities as needed. NPS will provide additional data and information concerning the Site at which work is to be done after contract award.

3.6.3. Site visits shall be approved in advance by the COR and SEKI POC; notify them of intent to visit at least 10 days ahead.

3.6.4. When possible, NPS will assist the Contractor in obtaining pertinent documentary materials, historical information, maps, photographs, Site plans, forms, and other material as available. All documentary materials provided to the Contractor will remain property of the U.S.

Government and must be returned to the NPS before final payment.

3.6.5. Progress payments.

The Contractor may submit requests for progress payments no more frequently than monthly.

The contractor shall email a draft invoice with all supporting documentation, including updated Schedule of Values and progress payment checklist, to the CO and COR, make revisions as directed, and post the invoice to IPP only after receiving NPS concurrence that the draft invoice is accurate, complete, and acceptable.

Prior to submitting progress payment request on which these items are billed, submit sampling results from the laboratories, manifests, bills of lading, certificates of disposal for solid and hazardous waste, and any other individual plans and reports specified in individual sections.

The Contractor shall not submit final progress payment request until all deliverables specified herein have been properly approved or accepted by the CO and/or COR. Once all contractual requirements are satisfied, the Contracting Officer will issue a letter of Final Acceptance and invite the Contractor to submit a final invoice.

3.7. Confidentiality. The information developed under this contract is the property of the U. S.

Government and shall be kept in strict confidence.

3.8. Proprietary Information Statement.

3.8.1. The Government will retain rights to all work products and intellectual property produced in the course of performing this contract. The Government may use the work products on any other work without additional compensation to the Contractor. With respect thereto, the Contractor agrees not to assert any rights and not to establish any claim under the patent or copyright laws.

3.8.2. NPS may release this contract’s work products to the public or share them with third parties for technical review.

3.8.3. Except as otherwise specifically provided for in this contract, Contractor shall not publish or otherwise release, distribute, or disclose any work product generated under this contract prior to obtaining express written approval of the NPS CO or COR. The Contractor shall not include proprietary information in work products.

3.9. The Contractor shall furnish all removal action services, materials, supplies, labor, equipment, investigations, studies, superintendence, and travel, as required, for completing the tasks.

3.9.1. The Contractor shall, without additional expense to the government, obtain any necessary licenses, permits, and shall comply with all federal, state, and local laws, regulations, rules, and codes applicable to the performance of the tasks required for this SOW.

3.9.2. All entities (prime and subcontractors) to whom the requirements apply shall have a Hazardous Substance Removal Certification (HAZ), issued by the State of California, upon submission of a proposal and for the duration of covered activities. The Contractor shall be responsible for verifying the transport, storage, and disposal (TSD) companies’ credentials and compliance with HAZ certification.

3.10. The Contractor is advised not to perform any services requested by any person verbally or in writing, which could be considered a change in the terms or scope of this SOW or necessitating an adjustment in contract price or any contract term or condition. If revisions to the SOW are required, the NPS Contracting Officer and Contractor will negotiate the scope, terms, and price, and formalize them in a written modification to the contract.

4. Contract Support and Removal Action Requirements.

4.1. Conduct Removal Action IAW SEKI/Grant Grove NTCRAWP. Interpret “Contractor will” in the WP (Attachment 2) as “Contractor shall” or “Contractor must.”

4.2. Project Conference. The Contractor shall attend a conference call no later than 20 days after contract award. Attendees of the kick-off meeting shall include, at a minimum, the Contractor's Project Manager (CPM), NPS Contracting Officer’s Representative (COR), and SEKI POC/staff to discuss the team member roles and responsibilities, project deliverables, overall project planning, scheduling, and communications planning.

4.3. Project Schedule. The Contractor shall prepare and submit via email a detailed schedule to the COR and SEKI POC for review and approval within 15 days after contract award. The schedule shall include the planned sequence and durations of Contractor-performed and NPS-performed (e.g., product reviews) tasks occurring during the established period of performance (POP) and showing the planned completion date.

“Days” means calendar days.

Refer to conceptual schedule on final page of this SOW.

All planning tasks in SOW Section 4 shall be completed (fully approved or accepted) within 105 days after award.

All removal action and later tasks in this SOW shall be completed within 320 days after award.

The Notice to Proceed (NTP) with on-site activities will be issued immediately after acceptance of the planning documents, bonds, and liability insurance certificate, no later than 106 days after award.

Unless specified otherwise for a specific deliverable, NPS shall be allowed 30 days in the schedule to review any deliverable. Days between December 15 and January 15, inclusive, shall not count against the number of review days.

All activity sequencing requirements contained in awarded and/or exercised CLINs shall be reflected in the schedule logic. If additional CLINs are authorized to be performed by the CO, integrate the additional work and provide a revised master schedule within 14 days after the contract is modified.

Per WP Section 5.2.2.1, plan field work to occur at typically dry times of year, approximately June to September to minimize the potential for soil run-off, as well as impacts to aquatic wildlife.

Within the dry season, plan fieldwork to occur during times that will minimize interference to visitors and park activities, as agreed-upon with the COR and SEKI POC.

On-site work that involves closing the horse trail and putting traffic controls in place shall not commence until 9/9/24. Heavy equipment shall not be mobilized to the site until 9/4/24, except with prior approval from the COR and SEKI POC.

Changes in the work schedule involving fieldwork must be coordinated at least 72 hours in advance with the COR and SEKI POC. Saturdays, Sundays, and holidays shall not count against the 72 hours.

Excavation must occur outside of bird nesting season (February 1- August 15) and fisher denning limited operating period (LOP: March 1- June 30). Excavation shall not occur prior to the agreed upon September start date (9/9/2024) due to the proximity of the concessioner/Grant Grove stables’ stock use of the adjacent trails. Noise disturbance above ambient levels should also be avoided prior to the agreed upon September start date for all of the above reasons. Also refer to potential fire season restrictions in SOW 8.18.1.

Removal activities may not commence until after NPS approves the Determination of Eligibility report and associated documents listed in SOW 12.

4.4. Prepare and submit a Schedule of Values (SOV) within 15 days after award of the contract, based on Form 3 that was submitted with the proposal.

4.5. Progress Reports. The Contractor shall submit monthly progress reports in writing. The monthly progress reports shall include a description of key accomplishments in the reporting period, planned events in the upcoming reporting period, identification of issues encountered and resolutions of issues, an updated project schedule, and a status of deliverables.

4.6. Progress Meetings.

4.6.1. The Contractor shall attend and participate in approximately three (3) technical meetings via teleconference with COR and park staff to facilitate review and understanding of submittals and discuss response to comments, as necessary.

4.6.2. Prior to and during the on-site activities, the Contractor shall facilitate and attend progress meetings with NPS staff, typically held weekly, to coordinate the work of this project;

virtual meetings using Microsoft Teams are preferred. The Contractor shall distribute draft meeting minutes within one day of each call, incorporate feedback, and provide final minutes just prior to the next meeting. NPS will provide minimum agenda topics after award. Meetings are anticipated to last 30 minutes.

4.7. Pre-Removal Project Documentation. The Contractor shall prepare and submit a Site Health and Safety Plan (SHASP), Sampling and Analysis Plan (SAP), Stormwater Pollution Prevention Plan (SWPPP), an Erosion Control Plan (ECP), and a Traffic Control Plan (TCP) within 45 days after award.

4.7.1. The draft and final SHASP (for NPS concurrence), SAP (for NPS approval), SWPPP (for NPS approval), ECP (for NPS approval), and TCP (for NPS approval) shall be submitted to the Contracting Officer, COR, and SEKI POC.

4.7.2. The SHASP shall comply with applicable OSHA regulations and FAR clause 52.236-13, Alt I. The Contractor shall have this SHASP available onsite for review if requested by the NPS COR or SEKI POC.

4.7.3. The SAP will comply with Site Inspection (SI) Sampling and Analysis Plan (SAP) Template.

4.7.4. The SWPPP shall comply with the Clean Water Act, including wetland delineation maps, and WP Section 6.

Straw wattles are prohibited, contrary to WP 6.2.

If erosion or temporary sediment control products containing natural fiber are to be used, they are to be of certified weed-free origin.

If mesh or netting is used, it is to be of loose weave construction with moveable joints ("leno weave" or "gauze weave") and with holes either equal to or smaller than 0.25 inches across or larger than 3 inches by 3 inches in dimension.

Include submittals (cut sheets) for all products to be installed. Biobased products are preferred; refer to BioPreferred|Catalog.

4.7.5. The ECP will comply with the SWPPP and NTCRAWP.

4.7.6. The TCP will comply with the NTCRAWP and include site controls (WP 5.3).

All truck traffic and vehicle routes shall be selected to maximize worker and visitor safety and to minimize impacts on park operations.

To increase safety near the site, implement traffic controls at the intersection where the trucks enter and exit the site, such as a sign plus someone directing traffic.

4.7.7. Plan Approval Process.

Contractor submits the draft plan(s) to NPS for review and comment.

No later than (NLT) 30 days after receipt of draft plan(s), NPS reviews and provides comments.

NLT 15 days after receipt of NPS comments, contractor resolves comments and submits the final plan(s) to the NPS for approval.

NLT 15 days after receipt of final plan(s), if acceptable, NPS approves the final plan(s).

4.7.8. The contractor shall make a best effort to submit documents to the NPS that meet the accessibility standards per Section 508 of the Rehabilitation Act. At a minimum, if available in the particular software, the contractor shall enable the 508 accessibility checker or other similar features at document inception and use professional judgement throughout document production to best meet 508 accessibility standards.

4.7.9. The file names of the documents submitted to the NPS shall comply with the following naming convention: The file name transmitted to NPS shall be SEKI_Document_Version_Date where:

"Document" is the abbreviated title of the document. Examples include:

Site Health and Safety Plan - "SHASP"

"Version" is the version of the document (e.g., "Draft" or "Final").

"Date" is the date signed by the contractor in the format of YYYYMMDD.

4.7.10. All draft and final deliverables of the SAP and RACR shall be signed/stamped by the Environmental Professional before submitting to NPS.

4.7.11. All files shall be transmitted to NPS via their secure file transfer method.

4.7.12. Submit documents and product cut sheets for NPS review with a completed Transmittal Form CM-16.

4.7.13. NPS comments on all planning documents shall be addressed to the satisfaction of NPS prior to plan finalization.

5. Removal Action.

5.1. Prior to Mobilization.

5.1.1. The Contractor shall complete and perform all notifications and compliance requirements to ensure a safe removal project.

5.1.2. The excavation area shall be demarcated as a safe work zone, including delineation of wetlands and utility clearances.

5.1.3. The Contractor is required to coordinate with NPS, local park air program, and state officials on all necessary activities.

5.1.4. Do not mobilize to the site until the Contracting Officer has issued a Notice to Proceed (NTP) with on-site activities.

5.2. Site Clearance.

5.2.1. Prior to the start of excavation, the contractor shall remove or set aside all logs, rocks when possible and any other debris to safely and efficiently implement the removal action described in the NTCRAWP. The contractor will work with the SEKI POC to agree upon a location adjacent to the site to locate the removed material.

5.3. Erosion Control.

5.3.1. Salvage and stockpile native litter and duff from the project Site before disturbing soil.

5.3.2. Use swales and other erosion control measures as specified in the approved SWPPP and ECP to prevent soil run-off. Materials are to be removed in a timely manner once they are no longer necessary.

5.3.3. Biobased products are preferred; refer to BioPreferred|Catalog.

5.4. Protection of Cultural Resources.

5.4.1. If unknown cultural resources are encountered during the project, stop all work in the discovery area pending further investigation and consultation. If concealed archaeological resources are uncovered during project activities, take all necessary steps to protect them. Notify the COR and SEKI POC immediately upon their discovery. “Cultural resources” and “archeological resources” include human remains, funerary objects, sacred objects, or objects of cultural patrimony.

5.4.2. NPS will follow the regulations implementing the Native American Graves Protection and Repatriation Act (43 CFR Part 10).

5.5. Access Road

5.5.1. Contractor shall widen and reinforce the access road to improve its condition so that equipment and trucks can easily enter and exit the site without causing damage.

5.5.2. The contractor must leave the access road in similar or improved condition as compared to existing condition. Do not widen the road, prune vegetation, or expand the current disturbed 11-ft width unless the COR grants prior approval to do so.

5.5.1.5.5.3. The contractor may modify the site access gate to allow ingress and egress during the removal action with prior acceptance of the proposed modifications by NPS. The contractor must adequately secure the site from unauthorized entry during the removal action; use of a similar wider gate is acceptable. Prior to demobilization, re-install the original gate or leave the new gate in place to match the functionality of the gate pre-removal.

5.6. Excavation.

5.6.1. Do not excavate soils during severe weather conditions (i.e., heavy rain and/or high winds).

5.6.2. Conduct dust suppression IAW NTCRAWP. Biobased dust control products are preferred; refer to BioPreferred|Catalog.

5.6.3. If applicable, segregate and manage excavated soil as non-hazardous, non-RCRA (Resource Conservation and Recovery Act) hazardous, or RCRA hazardous waste.

5.6.4. Place soil from each area in separate roll-off bin(s), stockpiled on thick plastic, or direct load into trucks.

5.6.5. Securely cover excavated soil by close of each workday.

5.6.6. The Contractor shall not, at any time, expand or stockpile the contaminated soil outside of the safe work area zone.

5.7. Sampling.

5.7.1. Confirmation Sampling.

Conduct confirmation sampling per WP 5.2.3.

If confirmation sample results exceed the RG, notify the SEKI POC, COR, and CO. The Contractor and NPS will develop an approach for continued soil removal and disposal with associated additional confirmation sampling based on the contractor-prepared technical memo in WP 5.2.3. The CO will authorize additional quantities of CLIN 3 and Options E, F, and/or G if necessary in a unilateral contract modification. The modification may include additional time commensurate with the anticipated overexcavation.

If an ISM confirmation sample for a given portion of an excavation exceeds one or more RGs, dig no deeper than four feet from the Site’s final horizon height (must be at least four feet of cover).

If an individual ISM side wall sample is above RGs, then the human health and/or ecological risk assessor would calculate the new exposure point concentration (EPC) over the entire exposure area. If the newly calculated EPC is above RGs, then continue lateral excavation until sidewall samples or the EPC are below RGs.

5.7.2. Waste Characterization / Stockpile Sampling.

Collect samples from stockpiled soil IAW the NTCRAWP and submit to a contract laboratory for analysis. These samples will characterize the soil for disposal as required by the disposal facility as non-hazardous, non-RCRA (Resource Conservation and Recovery Act) hazardous, or RCRA hazardous waste.

Alternatively, and only if approved by the receiving facility, waste characterization samples can be collected in-situ. This work is authorized to occur prior to 9/9/24.

Notify NPS of characterization results with estimated quantities for all proposed landfills within 5 days of receipt of results. The results will inform which option(s) NPS will exercise for transportation and disposal.

During the time that confirmation samples are being analyzed, protect the site in accordance with the SWPPP and ECP. Monitor weather forecasts and if a season-ending event is predicted prior to receipt of results, implement measures to winterize the site to reduce the likelihood of erosion, run-on intrusion from the site to adjacent areas, and sloughing of slopes.

Contractor shall describe a Site-specific approach for NPS’ concurrence. NPS will waive the requirement in SOW 7.1, allow demobilization after the inspection in 7.2, negotiate an extension to the performance period for the remaining work, and formalize it in a written modification to the contract. Unless otherwise negotiated, the extension will be calculated by suspending the contract clock as of the day of de-mobilization. The contractor shall resume operations as soon as the site is accessible and conditions are appropriate; the contract clock will resume when operations resume. Notify NPS at least one week prior to work resumption.

5.8. Transportation.

5.8.1. Transport non-hazardous soils, non-RCRA hazardous, and/or RCRA hazardous soils to approved/permitted landfill(s) for disposal.

5.8.2. Utilize a licensed transport company, in good standing with the State of California and who has the California Hazardous Substance Removal Certification, to haul soil to appropriate waste facilities.

5.8.3. Submit the waste manifests / bills of lading to the SEKI POC and COR within two weeks of disposal and include a copy with the applicable progress payment request.

5.9. Response Action Completion Reports (RACR) & Fact Sheet.

5.9.1. Prepare RACR and Response Action Fact Sheet (draft and final).

5.9.2. Submit to the CO, COR, and SEKI POC for review and approval.

5.9.3. The RACR & Fact Sheet shall detail activities performed, include figures showing Site features and sampling locations, Site photographs (photographs shall be taken of the Site and surrounding area prior to, during, and after the removal of soil), results, conclusions, recommendations and “lessons learned”.

5.9.4. Submit the draft report and draft fact sheet within 30 days following demobilization to the Contracting Officer. Submit the final report and final fact sheet within 15 days of receiving comments from the NPS to the Contracting Officer.

6. Site Restoration to Natural Condition.

6.1. After excavation is complete and confirmation samples indicate RGs have been met, backfill IAW NTCRAWP.

6.1.1. Consult with the SEKI POC, who will get input from NPS restoration ecologist, hydrologist, and geologist to recontour the Site to blend with surrounding contours, to restore overflow channels, and bring the surface of excavated areas to the desired grade. All slopes must be contoured to maintain Site drainage. The contoured slopes cannot be steeper than 2:1. The slopes must be hydromulched or a stabilized with the application of a bonded fiber matrix;

products are subject to NPS approval. The wood chips on Site shall be applied as cover in the flat areas and shall not be more than 3 inches deep on top of the contoured soil. All wood chips, rocks and any material not used to restore the Site must be removed by the contractor.

6.2. Recondition excavated areas

6.2.1. The Site shall be restored IAW with specifications in the NTCRAWP and herein. The reconditioning shall include all trails that were damaged or disturbed during excavation.

6.2.2. SEKI POC will identify the in-park sources of the government-furnished soil. See NTCRAWP for additional details. Ensure soils from the source’s surface are placed in the bottom of the excavated area, as this will help prevent the spread of weeds.

6.2.3. If more than 7,400 CY of clean soil is needed and if Option A and/or B is exercised by the NPS CO, transport and place clean soil. Soil from outside the park must be purchased from NPS-approved weed-free source(s).

6.2.4. Mulch bare soils with at least one inch of stockpiled native litter and duff or collected native litter and duff from adjacent areas, leaving at least 0.5 inch in place at the borrow Site.

Mulch disturbed areas with wood chips, soil retention blankets, or native litter and duff.

6.3. Finish grading and cleanup shall be limited to that necessary to return the area to its natural condition and to control surface erosion.

6.4. In the event the Contractor causes damage outside the approved disturbance area, The Contractor shall immediately notify the COR and SEKI POC. The Contractor shall restore damaged areas in accordance with CO direction, at no additional expense to government.

7. Site Inspection

7.1. Do not request the inspection until confirmation sampling results demonstrate that the Site’s RGs have been met.

7.2. Prior to the pre-demobilization site inspection, remove all barriers, tools, equipment, surplus materials, and rubbish. Pick up all debris from the Site. At time of inspection of the removal action, the Site shall be thoroughly clean.

7.3. The contractor shall request COR and SEKI POC at least five days prior to desired date for pre-demobilization Site inspection. During the inspection, NPS will confirm that all on-site removal action requirements have been successfully completed.

8. Additional requirements for on-site activities.

8.1. Preservation of natural features: Confine operations to limits shown for project. Prevent damage to natural surroundings. The park will identify and flag sensitive trees and vegetation that shall not be damaged prior to contractor mobilization. The contractor may prune vegetation along the access road with prior approval from SEKI staff.

8.2. In addition to the requirements in the WP, provide temporary barriers to protect existing trees and plants and root zones. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with Park Representative to get clearance to remove agreed-on roots and branches that interfere with the removal action. Do not fasten ropes, cables, or guy wires to existing trees. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage. Hand-sort top surface debris within the tree protection zones (TPZs). Refer to table on Page 3 of Attachment 4 for TPZ dimensions.

8.3. If the Contractor identifies trees that will pose a hazard to workers, including near the access road, consult with SEKI POC. If the park approves, the Contractor may remove them.

Whether the trunks and limbs remain on site to be used in the restoration or get hauled out of the park will be determined by the park; either method may be implemented at no additional cost to the government. Contractor may chip hazard tree green waste or remove it whole (i.e. trunks).

Green waste that is chipped can be placed on disturbed soil per SOW 6.2.4. Remaining chips and non-chippable green waste should be removed from the park and taken offsite to appropriate legal location for disposal under Option G or Option H.

8.4. Comply with regulations of the NPS, the United States Forest Service, the Fish and Wildlife Service, or other authority having jurisdiction, governing the protection of land that includes or is adjacent to the project.

8.5. Utilities: Notify Park Representative and utility companies of proposed locations and times for excavation. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair of the utility will be done at no additional expense to the Government. However, if damage occurs to an unknown utility, notify the CO, COR, and SEKI POC. The CO may negotiate an equitable adjustment in accordance with Changes clause of the contract to have the contractor repair it.

8.6. Hours of operations are 7 a.m. to 6 p.m. Monday through Friday. Weekend work and work on federal holidays will only be allowed when approved in advance by the Contracting Officer.

8.7. Construction equipment must have adequate mufflers and pollution emission controls.

8.8. NPS encourages the use of biobased hydraulic fluid in all earth-moving equipment (e.g.

excavator, bulldozer) to be used on-site. NPS may exercise Option D up to 30 days prior to mobilization.

8.9. The Contractor shall incorporate decontamination procedures for all vehicles, trucks, and equipment used at the site to control and prohibit the transfer of noxious weeds and plants into the park environment. Vehicles and equipment will be inspected by Park Representative prior to entry into the park for mud, weeds, and other unwanted substances. Steam clean earth-moving equipment (including haul vehicles) of mud and weed seed prior to inspection. Subsequent entries of hauling vehicles will not require cleaning unless requested. Notify Park Representative a minimum of 72 hours prior to entry of vehicles and equipment.

8.10. Constantly keep Site clean, neat, orderly, and in a safe condition during duration of project. Provide trash dumpsters with animal-proof lids to contain debris. Collect and dispose of waste material outside park boundaries. Keep volatile wastes in covered containers.

8.11. Take all necessary reasonable measures to reduce air and water pollution by any material or equipment used during site work. Do not idle equipment not in use for more than 5 minutes.

Do not dispose of volatile wastes or oils in storm or sanitary drains. Do not allow waste materials to be washed into streams or bodies of water.

8.12. Do not feed or disturb wildlife within park boundaries. Bear density is high in this area.

Always comply with food-storage and garbage disposal requirements, including keeping all food products and scented products in bear-proof containers. Suspend on-site activities when dangerous animals (mountain lions, bears, etc.) come near the Site and create potential animal/human conflict. Notify SEKI POC and/or Park Ranger immediately for resolution of potential animal/human conflicts.

8.13. Do not operate or park equipment outside project limits or on topsoil areas, except as approved by SEKI POC. Do not drain oil, hydraulic fluids, antifreeze, or other chemicals onto ground within park boundaries. Completely contain diesel fuel at work site. Clean up any spill immediately.

8.14. Do not operate or store vehicles and equipment leaking oil, gas, or antifreeze within park boundaries. Do not use other equipment that is leaking. Keep supply of acceptable absorbent materials at job site in event of spills. Acceptable absorbent materials are those manufactured specifically for containment and cleanup of hazardous materials.

8.15. Separate work areas, including material sources, by the use of a dike or other suitable barrier so that sediment, petroleum products, chemicals, and other liquid or solid material do not enter waters of the U.S. Use care in constructing and removing barriers to avoid discharge of material into, or siltation of, water. Remove and properly dispose of sediment and other material collected by barrier.

8.16. In case of conflicts between Federal, state, and local safety and health requirements, the most stringent shall apply. Equipment or tools not meeting OSHA requirements will not be allowed on the project sites. Failure to comply with the requirements of this section and related sections may result in suspension of work.

8.17. Adequately barricade and post the Site from unauthorized entry by the public. Remove all barriers at conclusion of project.

8.17.1. Contractor may close access to the work site during work.

8.18. Fire danger and precautions.

8.18.1. The Contractor is responsible for adhering to all fire prevention restrictions issued by Sequoia Kings Canyon National Parks and for providing adequate fire protection and prevention measures. All work practices will be regulated by the park’s fire management officer; specific work activities may be prohibited during times of high fire danger. For specific information see:

https://www.nps.gov/seki/learn/nature/fire-restrictions.htm

8.18.2. A capable and qualified person shall be placed in charge of fire protection. The responsibilities shall include locating and maintaining fire protective equipment and establishing and maintaining safe torch cutting and welding procedures. Cutting by torch or welding shall be performed only when adequate fire protection is provided and after approval of an NPS Hot Work permit.

8.18.3. Take all necessary precautions to prevent fire. Provide adequate ventilation during use of volatile or noxious substances. Equip all gasoline or diesel-powered equipment used in potential forest and grass fire locations with spark arresters approved by NPS. Provide at least one extinguisher on each vehicle or piece of equipment.

8.18.4. Designate smoking areas. Designated area must be posted, will need to be cleared of vegetation and will require a 5-gallon bucket of sand.

8.19. No on-Site treatment of hazardous substances is allowed on park land.

8.20. Sanitary facilities – Provide sufficiently-lighted and ventilated toilet facilities and hand wash facilities for use by personnel.

8.20.1. Place in NPS-approved locations convenient to work area. Relocate if work progress requires.

8.20.2. Service and clean toilet and hand wash facilities at least weekly, or in compliance with requirements imposed by California and the county, whichever is more stringent.

8.20.3. Completely remove sanitary facilities on completion of work.

9. Contractor Staffing

9.1. The Contractor shall furnish sufficient technical, supervisory, and administrative personnel to ensure completion of the work as defined herein.

9.2. Contractor’s Project Manager (CPM).

9.2.1. Following award of the contract, the Contractor shall designate a CPM who shall be responsible for technical oversight of the work, overall product quality, preparation of invoices, monitoring of budgets and schedules, and maintaining timely and appropriate communication with the NPS Project Manager. The CPM will be the primary liaison between the Contractor and the NPS PM and COR and must be an employee of the prime contractor.

9.2.2. The Contractor Project Manager shall be supported by the Contractor’s professional and skilled technicians who have experience in performing tasks/activities for the project as specified in this SOW.

9.2.3. The CO, COR and SEKI POC shall be apprised in advance of any proposed changes in the CPM by the Contractor.

9.3. Operators of vehicles, mobile equipment, hoisting equipment, and hazardous plant equipment shall be able to understand signs, signals, and operating instructions, and be capable of operating such equipment. Provide operating instructions for all equipment.

9.4. All Site employees shall have current, appropriate HAZWOPER certification per OSHA 29 CFR Part 1910.120(h) for the type of work they will perform.

9.5. Field Sampling Specialists

9.5.1. Site sampling personnel shall be qualified and experienced in EPA methods and sampling protocols listed in the WP.

9.5.2. The Contractor shall provide a team of no fewer than two Field Sampling Specialists.

9.5.3. All Field Sampling Specialists shall have the proper training and certifications needed to conduct the work required for the project and to assure the field procedures are performed properly. All Field Sampling Specialists shall possess 40-hour OSHA hazardous waste operation (HAZWOPER) training/certification.

9.5.4. All Field Sampling Specialists shall have previous surface and near-surface soil/sediment sampling experience at other high-profile public sites within the CERCLA program.

9.5.5. The experience within the Field Sampling Team shall include gridding, collecting GPS coordinates, using hand-held samplers/tools and related equipment, sieving, preparing and packaging samples, preserving and shipping samples, recording data in field logbooks, and documenting sample chain-of-custody.

9.5.6. Field Samplers will sign and submit to the CO, COR and SEKI POC the Field Team Scope Acknowledgement Letter prior to field sampling.

9.6. Positions described in 9.7 through 9.10 are designated as key personnel.

9.6.1. All contractor work must be performed or overseen by these key personnel.

9.6.2. If a person is qualified, they may perform the duties of more than one key personnel position.

9.6.3. If the key personnel are not employees of the prime contractor, the prime contractor shall allow the NPS COR to communicate directly with the key personnel regarding technical matters related to CERCLA implementation and documentation. The CPM will be invited to participate, but is not required to do so, and will be copied on all correspondence. All contractual matters will be handled between NPS and the prime contractor.

9.6.4. No substitutions of key personnel may occur within the first 60 days after award. After that period, Contractor shall make every reasonable effort to provide advance notice to the COR of any changes to key personnel at least 30 days prior to an anticipated change. Contractor shall provide an equal or better candidate for CO and COR review. Recommended key personnel are not allowed to work on the project unless/until the substitution is accepted by the CO.

9.7. “Environmental Professional” is defined by 40 CFR Part 312.10 Paragraph (b)(1) and limited to those in 40 CFR Part 312.10 Paragraph (b)(2)(i) that hold a current Professional Engineer’s or Professional Geologist’s license or registration in California and have the equivalent of 15 years of fulltime relevant experience.

9.8. Human Health Risk Assessor. The human health risk assessor must have all of the following as a minimum:

Master’s degree in biological sciences or toxicology, Minimum 15 years of working experience in developing human health risk assessment data quality objectives, sampling design for human health risk assessment data needs, development of site-specific exposure parameters, conducting human health risk assessments, and the identification of uncertainties, including the applicability of toxicology studies. Consulting experience preferred.

Demonstrated 15 years of working experience conducting Hazard Identification, Demonstrated 15 years of working experience conducting Dose-Response Assessments, Demonstrated 15 years of working experience conducting Exposure Assessments, Demonstrated 15 years of working experience conducting Human Health Risk Characterization, Demonstrated 15 years of working experience developing Preliminary Remedial/Removal Goals, Working knowledge of EPA risk assessment guidance and databases, Working knowledge of statistics, including development of statistically based sampling designs, use of Incremental Sampling Methodology (ITRC 2020 or latest) and associated statistics and decision mechanisms, Working knowledge of state and federal regulatory frameworks (RCRA, CERCLA, NEPA, NRDA, etc.), Experience with water quality issues and soil / sediment contamination, and

Non-mandatory qualification: Human Health Risk Assessor who is a Diplomate of the American Board of Toxicology (DABT) that has 15 years of experience working with the Comprehensive Environmental Response, Compensation, and Liability Act.

Strong oral and written communication skills.

9.9. Ecological Risk Assessor. The ecological risk assessor must have all of the following as a minimum:

Master’s degree in biological sciences or toxicology, Minimum 15 years of working experience in developing ecological risk assessment data quality objectives (DQOs), sampling design for ecological risk assessment data needs, development of site-specific exposure parameters for local ecological receptors, conducting ecological risk assessments, and the identification of uncertainties, including the applicability of toxicology studies. Consulting experience preferred.

Demonstrated 15 years of working experience conducting Ecological Risk Characterization, Demonstrated 15 years of working experience developing Preliminary Remedial/Removal Goals, Working knowledge of statistics, including development of statistically based sampling designs, use of Incremental Sampling Methodology (ITRC 2012 or latest) and associated statistics and decision mechanisms, Working knowledge of EPA risk assessment guidance and databases, Working knowledge of state and federal regulatory frameworks (RCRA, CERCLA, NEPA, NRDA, etc.), Experience with water quality issues and soil / sediment contamination, and

Strong oral and written communication skills.

9.10. Regulatory Specialist. The regulatory specialist must have all of the following qualifications as a minimum:

Bachelor’s degree in environmental science, Biology, Chemistry, or another relevant field.

In-depth knowledge of environmental requirements under federal regulations (RCRA, CERCLA, CWA, and CAA) and CA state regulations, Documented experience analyzing, interpreting, and applying environmental regulations, including ARARs, for a variety of Site types for a minimum of 15 years, and

Excellent written and verbal communication skills.

Non-mandatory qualification: Regulatory Specialist with juris doctor (J.D.) degree that has worked with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), including drafting and reviewing records of decision (ROD), performing analyses of applicable or relevant and appropriate requirements (ARAR), determining compliance with national oil and hazardous substances pollution contingency plan (NCP) requirements, and completing a variety of CERCLA enforcement activities.

10. Section 10 is not used.

11. DEFINITION OF CONTRACT LINE ITEMS

Item 1: Contract support tasks (lump sum) includes tasks and documentation listed in all sections of this SOW and all activities not listed below.

Item 2: Non-removal site activities. Includes mobilization; clearing/grubbing; implementing, maintaining, and removing erosion/stormwater and traffic controls; dust monitoring and dust control; site restoration (including loading, transporting, and placing ~7,400 CY of NPS-furnished clean soil to replace the estimated excavation quantity); and demobilization (lump sum) as described in portions of Sections 4, 6, 7, and 8.

Item 3: Excavate soil and debris (per ton) as described in portions of Section 5 (See EE/CA for estimated quantities). Payment will be for the actual quantity at the unit price per ton, subject to the Variation in Estimated Quantity clause. Quantity will be measured and calculated by adding up disposal weight tickets from landfill(s) (from Options E, F, and/or G) and is estimated to be 9,988 tons.

Item 4: Sampling (lump sum) as described in Section 5.7, including disposal characterization and confirmation sampling. Use quantities identified in the NTCRAWP.

OPTION A: Purchase, import, and place clean soil (per loose cubic yard) as described in Section 6. Payment will be made at the unit price for the actual quantity of clean soil as indicated by loading tickets from the source (weight tickets are preferred over cubic yard measurements).

Unit price shall include soil, transportation, placement, and contouring. Preference will be to exercise this option in 10-CY increments, approximately 15 tons per truckload. (Note that transportation, placement, and contouring of some NPS-furnished soil is included in Item 2.)

NPS may exercise Option A multiple times.

OPTION B: Load, transport, and place clean NPS-furnished soil (per loose cubic yard) as described in Section 6. Payment will be made at the unit price for the actual quantity of clean soil as measured by visual inspection by the NPS Inspector and documented by the contractor. Unit price shall include loading, transportation, placement, and contouring. Preference will be to exercise this option in 10-CY increments. (Note that transportation, placement, and contouring of some NPS-furnished soil is included in Item 2.) NPS may exercise Option B multiple times.

OPTION C: Additional soil confirmation samples (each) as described above and the NTRCA WP SAP. Payment will be at the unit price for the quantity ordered. This option's unit price includes all necessary lab analyses plus the labor to collect and process the samples. NPS may exercise Option C multiple times in increments of 1 each.

OPTION D: Biobased hydraulic fluid in earth-moving equipment (lump sum) as described herein Section. Includes sufficient quantity of biobased hydraulic fluid and labor to install (and remove, if required) it in appropriate equipment. Acceptable products are listed at www.biopreferred.gov/BioPreferred/faces/catalog/Catalog.xhtml.

Options E, F, and G may be exercised in any combination or quantity based on waste characterization results; quantities may be adjusted based on confirmation sampling. In general, NPS will pay the contract unit price per ton for the quantity shown on the weight tickets. For loads that don’t meet the landfills’ minimum tonnage and for which a flat disposal fee is charged, the contractor may invoice NPS for the minimum tonnage (e.g. 23 tons) at the contract unit price.

OPTION E: Transport and dispose of soil and debris at RCRA Class II landfill (per ton) as described in portions of Sections 5 and 8. Payment will be for the actual quantity at the unit price per ton subject to the Variation in Estimated Quantity clause. Quantity will be measured by adding up weight tickets from landfill and is estimated to be 9,988 tons.

OPTION F: Transport and dispose of soil and debris at RCRA Class I landfill (per ton) as described in portions of Sections 5 and 8. Payment will be for the actual quantity at the unit price per ton subject to the Variation in Estimated Quantity clause.