B08_-_Drawings_-_figures-map_primne_hook_for_removal_action.pdf
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- MD-CHESAPEAKE BAY ESFO-LEAD SHOT SITE
- Solicitation number
- 140FC225R0015
About this file
This document is a site plan and location map for a lead shot remediation project at the Prime Hook National Wildlife Refuge in Milton, Delaware. The files detail a comprehensive environmental cleanup effort focused on removing lead contamination from a former trap shooting range. The site consists of multiple zones with varying lead concentration levels, including a drop zone, forested wetland, slough, and grassy field areas.
The remediation project involves excavating contaminated soil across five distinct areas with different depths (ranging from 1 to 6 feet) and estimated lead concentration contours. The total estimated remediation area covers approximately 227,661 square feet, with estimated remediation volumes between 8,139 and 11,658 cubic yards. The groundwater flow direction indicates contamination moving from upland areas of the former shooting range towards a slough that is a tributary of Primehook Creek. The project is being conducted by the US Fish & Wildlife Service, with source data from Geosyntec Consultants and the U.S. Geological Survey, utilizing investigations and reports from 2003 and 2017.
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Text version
PRIM
EHOOK CREEK
1,000
1, ,0
SOURCES: FIGURES 3 AND 15 OF SUPPLEMENTAL SITE INVESTIGATION FOR WETLANDS ADJACENT TO THE FORMER TRAP RANGE, PRIME HOOK NATIONAL WILDLIFE REFUGE, MILTON, DELAWARE, PREPARED BY GEOSYNTEC CONSULTANTS, DATED DECEMBER 2017 (2017 SSI).
GROUND-WATER CONTAMINATION FROM LEAD SHOT AT PRIMEHOOK NATIONAL WILDLIFE REFUGE, SUSSEX COUNTY, DELAWARE, PREPARED BY DANIEL J.
SOEDER AND CHERIE V. MILLER (U.S. GEOLOGICAL SURVEY), DATED 2003 (2003 GROUNDWATER REPORT).
AERIAL PHOTOGRAPH REVIEWED ON GOOGLE EARTH, DATED JUNE 2018.
APPROXIMATE SCALE IN FEET
PROJECT NO.:
DRAWN BY:
CHECKED BY:
APPROVED BY:
FIGURESITE PLAN
US FISH & WILDLIFE SERVICE
PRIME HOOK NATIONAL WILDLIFE REFUGE
MILTON, DELAWARE
150 300 450 600
LEGEND
DROP ZONE
(REMEDIATED IN 2003)
FORESTED WETLAND
SLOUGH
GRASSY FIELD
APPROXIMATE PRIME HOOK NATIONAL WILDLIFE REFUGE PROPERTY LINE (AS DEPICTED IN
THE 2017 SSI AND 2003 GROUNDWATER REPORT)
REMOVAL ACTION EXTENTS (AS DEPICTED IN THE 2017 SSI)
UNDEFINED REMOVAL ACTION EXTENTS (AS DEPICTED IN THE 2017 SSI)
GROUNDWATER FLOW DIRECTION (AS REPORTED
IN THE 2003 GROUNDWATER REPORT)
NOTES
SITE FEATURES ARE DIGITIZED FROM THE ABOVE LISTED SOURCES.
THE GROUNDWATER FLOW DIRECTION IS BASED ON 2000-2001 GROUNDWATER GAUGING DATA REPORTED IN THE 2003 GROUNDWATER REPORT. ACCORDING TO THE 2003 GROUNDWATER REPORT, GROUNDWATER FLOWS FROM UPLAND AREAS ON THE FORMER SHOOTING RANGE TOWARDS THE FORESTED WETLAND BEFORE ULTIMATELY DISCHARGING
INTO THE SLOUGH, A TRIBUTARY OF THE PRIMEHOOK CREEK.
SHOT CONTOUR (PELLETS PER SQUARE FOOT, AS DEPICTED IN THE 2003 GROUNDWATER
REPORT)
FORMER TRAP HOUSES
DROP ZONE AREA WHICH HISTORICALLY CONTAINED GEOTEXTILE COVER
File details come from the government source that posted it. Updated .