2004_August_CBFO_CO0304_Prime_Hook_ERA.pdf
PDF 6 MB Posted
- Attached to
- MD-CHESAPEAKE BAY ESFO-LEAD SHOT SITE
- Solicitation number
- 140FC225R0015
About this file
This document is an Ecological Risk Assessment for the Prime Hook National Wildlife Refuge Lead Shot Site in Milton, Delaware, prepared by the U.S. Fish & Wildlife Service in August 2004. The assessment evaluates the ecological effects of lead shot and associated lead-contaminated soil and sediment at a 27-acre site that was previously operated as a trap range by the Broadkill Sportsman's Club for approximately 40 years.
The study conducted comprehensive environmental testing, including soil and sediment sampling, toxicity tests on earthworms, rye grass, and amphipods, and food chain accumulation models to assess potential ecological risks. Key findings indicate the site was heavily contaminated with lead, with surface soil lead concentrations up to 100,000 mg/kg and shot density up to 68,564 shot/ft². The research evaluated potential threats to various ecological receptors, including terrestrial plants, aquatic and terrestrial invertebrates, insectivorous birds and mammals, and waterfowl. Based on the results, preliminary remediation goals were developed to be protective of all species, with a recommended cleanup level of 421 mg/kg lead in soil and sediment.
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Text version
Ecological Risk Assessment for the Prime Hook National Wildlife Refuge Lead Shot Site Milton, Delaware
CBFO-C03-04
August 2004
U.S. Fish & Wildlife Service
Contaminated area before (background) and after restoration (below)
Beach
B r o a d k i l l
Prime Hook Beach (Developed)
Turkle Pond
DELAWARE
FISH & GAME
Fleetwood Pond
Goose Pond
Bennett Pond
Big Round Pond
Kelp Pond
Wilson Pond
Spotterdock Pond
C r e e k
Sl au gh te r B ea ch R oa d
Fowler
Rd.
P r i m e
Hook
Beach R o a d
Broadkill
Bea ch Road
Miry Pond
Wall Island
Petersfield Island
B r oa d k i l l S o u n d
Fowler Beach
Slaughter Beach (Developed)
To Milford 7 Miles
Milton
Waples Pond
Nassau
R i v e r
D e l a w a r e B a y
12/99
Prime Hook National Wildlife Refuge
Refuge Headquarters
Broadkill Beach (Developed)
North
Milford
Scale in Miles
0 10 20
ATLANTIC
OCEAN
Milton
Headquarters is located 12 miles southeast of Milford and 10 miles northwest of Lewes. Take Route 1 to Route 16 east for 1 mile. Turn left the office.
into refuge and proceed 1.6 miles to
Prime Hook N.W.R.
0 1 2 Miles
0 1 2 Kilometers
S l a u g h t e r
C a n a l
S l a u g h t e r
Refuge Property
Refuge Boundary
Private Property Please Respect
Note: Refuge boundary does not extend to Delaware Bay.
Lead shot site
File details come from the government source that posted it. Updated .