B08_-_Statement_of_Work_-_Prime_Hook_-_Lead_Shot_Removal_Work_Plan_rev_12132022.pdf

STATEMENT OF WORK

Soil Removal/Remediation Action

Solicitation# 140FC225R0015 - PR 0044009209 - Lead Shot Site Prime Hook National Wildlife Refuge

Milton, Delaware

SCOPE

Under this order, the contractor will provide professional consulting and engineering services to plan and complete Soil Removal/Remediation Action and related professional services i/a/w the specifications at the Lead Shot Site, Prime Hook National Wildfire Refuge, Milton, Delaware.

ORGANIZATION

U.S Fish and Wildlife Service (Service), Chesapeake Bay Field Office

BACKGROUND

Studies conducted since 1999 at the Prime Hook Lead Shot Site identified the presence of lead in soil, sediment, and surface water in uplands and forested wetlands of the refuge in the drop zone of an adjacent trap shooting facility. The source was the Broadkiln Sportsman's Club (BSC), where members shot trap for almost 40 years, beginning in the early 1960s, and continuing through 2000.

After investigations by the Fish and Wildlife Service (Service), an interim remedial action was completed in 2003. The cleanup footprint for that action consisted of 4-5 acres of uplands and wetlands. Due to the cost of the cleanup, it was decided that the upland or capped area (0.8 acres), containing the bulk of the lead, should be removed immediately and the adjacent forested wetland should be monitored. The Service also completed an Ecological Risk Assessment (ERA, Guy et al. 2004) with a recommended Preliminary Remediation Goal (PRG) of 421 mg/kg (parts per million = ppm) for the site.

Based on 10 years of groundwater and surface water monitoring (Pinkney and Callihan 2017) and a tadpole bioaccumulation study (Krest et al. 2017) that showed elevated concentrations of lead, the Service confirmed contamination of surface water and tadpoles in the wetland. Krest et al. (2017) proposed a PRG of 312 ppm for site sediment.

The Service contracted for the performance of an Engineering Analysis/Cost Assessment (EE/CA;

Geosyntec 2017). The EE/CA documented the extent and magnitude of contamination in the forested wetland and evaluated remedial alternatives. The recommended alternatives call for the excavation and removal of lead contaminated soil and sediments from the forested wetland.

The EE/CA recommended either Alternative 2 (Excavation with Off-Site Disposal), Alternative 3 (Excavation, In-situ Treatment and Off-Site Disposal), or a combination of the two.

BBJ (2021a) conducted a benchtop and pilot scale Treatability Study. BBJ concluded that leachable lead in soil and sediment is effectively stabilized to below 5 mg/L using a 4% application of EnviroBlend® CS and a rotary mixing technique. Additionally, ingredients within the reagent did not appear to present a significant risk to human health or the environment once applied. BBJ

(2021b) completed a Removal Action Workplan with an Engineer’s Estimate of Costs. The cost estimate was based on the results of the Treatability Study and detailed knowledge of the site.

On the BSC property, Delaware Department of Natural Resources and Environmental Control (DNREC 2017) conducted a Site Inspection. The lead concentration was 128,000 ppm, which greatly exceeds the U.S. Environmental Protection Agency (EPA) residential soil screening value of 400 ppm (ecological risks were not assessed). Concerns about the potential for re-contamination of the refuge property appear to be minimal for two reasons. A Fate and Transport study (Greosyntec 2019) did not indicate the likelihood of rapid transport of lead in soil or groundwater from the BSC onto the refuge. Furthermore, DNREC has obtained funding to conduct a removal action of the soil in the BSC property in the near future (no date set).

TASKS/SERVICES

Central Hazmat Fund has provided the resources to conduct the Removal Action in 2023.

Contractor proposals will provide a detailed cost breakdown of all costs. The Contractor will implement a Removal Action based on BBJ (2021b, Sections 4 through 6) and complete the following tasks:

• Obtain all necessary permits and utility clearances.

• Complete a Health and Safety Plan, respond to comments and obtain the Service’s approval.

• Conduct a wetlands delineation and any necessary survey work,

• Conduct a tree species and diameter at breast height survey, to identify trees that may be saved during the site preparation,

• Conduct a supplemental lead soil screening event to delineate the extent of contamination in the northern portion of the wetland,

• Perform groundwater and surface water quality testing,

• Decommission monitoring wells that are no longer needed,

• Perform all necessary site preparation,

• Identify and evaluate a source of clean fill,

• Prepare a Contaminated Materials Management Plan and obtain DNREC approval

• Implement the remedy as described in BBJ (2021b, Section 5) including the application of

EnviroBlend® CS during soil mixing,

• Conduct waste characterization and obtain Solid Waste Disposal Facility approval

• Document that all field equipment were thoroughly inspected and cleaned of seeds, plants, insects, and other natural material that may foster the spread of invasive species

• Prepare a Long-Term Stewardship Plan (LTSP) after the implementation of the removal action to describe any restrictions for future use of the site, long-term monitoring requirements and any other actions that are required to prevent or diminish future exposure potential.

REFERENCES

• BBJ Group, Inc. 2021a. Technical Memorandum: Pilot Scale Treatability Study Results, Prime Hook National Wildlife Refuge, Milton, Delaware. BBJ, Chicago, IL.

• BBJ Group, LLC. 2021b. Removal Action Workplan and Engineer’s Opinion of Probable

Costs – Lead Shot Site Prime Hook National Wildlife Refuge, Milton, Delaware. BBJ, Chicago, IL.

• Delaware Department of Natural Resources and Environmental Control (DNREC). 2017.

DE-1371 Broadkiln Sportsman’s Club Site Inspection Report. DNREC Site Investigation and Restoration Section, New Castle, DE.

• Geosyntec Consultants, Inc., 2017. Engineering Evaluation/Cost Analysis for Wetland Adjacent to the Former Trap Range, Prime Hook National Wildlife Refuge, Milton, Delaware. Geosyntec, Seattle, WA.

• Geosyntec Consultants, Inc. 2019. Final Report, Analysis of Fate and Transport of Soil Contamination from the Broadkiln Sportsman’s Club to Prime Hook National Wildlife Refuge, Milton, Delaware. Geosyntec, Seattle, WA.

• Guy, C.P., M. Huston, S. Krest, and D. Murphy. 2004. Ecological Risk Assessment for the Prime Hook National Wildlife Refuge, Milton, Delaware. U.S. Fish and Wildlife Service, Chesapeake Bay Field Office, Annapolis, MD. CBFO-C-03-04.

• Krest, S., A.E. Pinkney, and M.A. Rutter. 2017. Use of an In Situ Tadpole Enclosure Study for Developing a Preliminary Remediation Goal for Lead in Wetland Sediments at Prime Hook National Wildlife Refuge, Milton, Delaware U.S. Fish and Wildlife Service, Chesapeake Bay Field Office, Annapolis, MD. CBFO-C16-01.

• Pinkney, A. E., and C.R. Callahan. 2017. Ground Water and Surface Water Monitoring of the Prime Hook Lead Shot Site, Prime Hook National Wildlife Refuge, Milton, Delaware (October 2007-December 2015. U.S. Fish and Wildlife Service, Chesapeake Bay Field Office, Annapolis, MD. CBFO-C16-04.

DELIVERABLES

The Contractor will prepare the following deliverables:

• Copies of all permits and clearances

• Reports prepared in support of the Removal Action including all reports to regulators

• Interim and final financial and performance reports for each Fiscal Year; the final report will document all activities conducted during the contract

CERTIFICATIONS, LICENSE, PHYSICAL REQUIREMENTS OR OTHER

EXPERTIESE REQUIRED

The Contractor must have:

• Knowledge of chemical hazards, health and safety requirements and waste disposal regulations.

• Knowledge of Removal/Remedial Action Plans, hazardous waste site investigations, treatability studies, health and safety requirements, analytical chemistry, remedial options and state and federal guidelines.

• All required licenses and certifications.

PERIOD OF PERFORMANCE

A draft Work Plan shall be delivered within 4 weeks of award. The final Work Plan shall be delivered 4 weeks after receiving the Service's comments on the draft, which will be provided within 2 weeks of submittal of the Draft Work Plan. The Final Work Plan shall include three hard copies and an electronic version in PDF format; contractor will provide copies of all electronic files to include Word, (working) Excel, photos, etc. The period of performance is 545 days after receipt of the notice to proceed.

PLACE OF PERFORMANCE

Work can be conducted at the contractor ' s office and on-site at Prime Hook NWR, 11978 Turkle Pond Road, Milton, DE 19968. Attendance at technical meetings may be required. These meetings will most likely occur at Prime Hook NWR or at DNREC offices.

OPERATIONAL HOURS

Work will be performed 40 hours per week during normal business hours, Monday-Friday, excluding Federal holidays. The work site can only be accessed with the presence/permission of a Service employee. Equipment access will be limited and monitored by Service personnel. The Service employee available for access and on-site project assistance is Kate Toniolo, Refuge Manager, Prime Hook NWR, 11978 Turkle Pond Road, Milton, DE 19968, cell: 302-222-6309.

OVERTIME

Overtime is not authorized.

SAFETY CONCERNS

The contractor will prepare a Health and Safety Plan for review and approval by the Service.

GOVERNMENT-FURNISHED EQUIPMENT, BADGE, KEYS AND/OR FACILITIES

PROVIDED

• No government furnished equipment will be provided.

• Hard copies and/or electronic copies of relevant site documents will be provided to the contractor.

SECURITY CLEARANCE/POLICE CHECK/DRIVING RECORD CHECK

Work under this task order is ☒Unclassified ☐ Secret ☐ Top Secret

TASK TYPE

☒ Fixed Price ☐ Time and Materials (T&M) Labor-Hour.

STATEMENT

The contractor's management team shall ensure that contractor employees properly comply with the performance standards outlined in the Quality Assurance Surveillance Plan (QASP). Contractor employees will perform independent of and without the supervision of any Government official. Actions of contractor employees may not be interpreted or implemented in any manner that results in any contractor employee creating or modifying Federal policy, obligating the appropriated funds of the U.S. Government, overseeing the work of Federal employees, providing direct personal services to any Federal employee or otherwise violating the prohibitions set forth in Parts 7.5 and 37.1 of the Federal Acquisition Regulation (FAR). The Government will control access to the facility and will perform the inspection and acceptance of the completed work.

GOVERNMENT PROJECT OFFICER

The Government Project Officer (PO) will provide general instructions on limitations and deadlines and is responsible for administration of the task order in compliance with the contract to include inspection and acceptance of deliverables. The PO will engage the contractor, provide direction and expectations, and monitor performance and review time Contracting Officer's Point of Contact: Carlton Morris Phone: (503) 784-3911 E-Mail: carlton_morris@fws.gov

Contracting Officer Point of Contact:

Micah Holmes Email: Micah_Holmes@fws.gov Phone: 505-248-6831

The Contractor shall furnish all labor, materials, supervision, equipment, tools, and all other necessary resources to construct the project as detailed in the drawings and specifications, and according to the contract terms and conditions for the project.