National Priority List Superfund Sites on Naval Weapons Station Earle

In 1990 NWS Earle was placed on the Comprehensive Environmental Response Compensation and Liability Act (CERLA) National Priorities List (NPL). During the 1992 IAS a total of 29 potentially hazardous sites were identified at NWSE.

Eleven NPL sites flank both sides (forming a contamination corridor) and are in close proximity to Alignment 4, the chosen unimpeded access route civilian renters will be using to access the Laurelwood housing units.

Below is a listing of the sites, the mission of that particular site and the site’s associated contaminants.

Site 22 - Paint Chip Disposal Area
Contaminant(s): Sediment – PAHs (Benzo(a)pyrene

Site 23 - Paint Chip Disposal Area
Contaminant(s): Soil-Metals & PAHs(Indeno(1,2,3-CD) pyrene, dibenz(a,h)anthracene, benzo(b)fluoranthene, benso(a)anthrancene & benzo(a)pyrene) Groundwater-Metals (arsenic, cadmium, lead, & vanadium)

Site 24 & 25 – Closed Pistol Range
Contaminant(s): Bullets and shells containing lead

Site 14 – Defense Property Disposal Office Warehouse, Mercury Spill
Contaminant(s): NONE?

Site 47 – Closed Pesticide Shop
Contaminant(s): Soil –Pesticides (chlordane & 4,4’ DDT), Groundwater-Pesticides (Endosulfan I)
Site 28 – Waste Oil Tank
Contaminant(s): None Identified?

Site 29 – PCB Spill Site of A Hazardous Waste Storage Facility
Contaminant(s): Soil: TPH & low levels of PCB; Groundwater-very low level of VOC (Benzene and 1,2-DCE)

Site 16 – Fuel Line connecting Buildings C-20 & C-50
Epic Site F – Roundhouse
Site 16F – 8 Acres
Contaminant(s): Surface Soil: Metals (Lead) & TPH, Sediment: TPH; Groundwater: Organics (Benezene), TPH, Soil Gas: Organics (total BTEX, TCE, PCE)

Site 11 – Contract Ordnance Disposal Area
Contaminant(s): NONE?

Site 13 – Defense Property Disposal Office Yard
Contaminant(s): Soil: Metals, PAH, & Pesticides, Sediment: PCBs – Aroclor 1254; Groundwater: Metals, (arsenic, cadmium, chromium and lead);VOCs (Vinyl chloride)

Site 1 – Ordnance Demilitarization - (Contaminants are buried)
Contaminant(s): Surface soil, Metals: Aluminum, Chromium, Copper, Mercury, Vanadium, Metal and/or Alloy; Groundwater: Metals, Chromium assumed to be hexavalent (VI), Explosives RDX, Arsenic

QUESTIONS RELATED TO THESE NPL SITES AND ALIGNMENT 4
Ø Will constant vehicular traffic and environmental factors force buried contaminants to reemerge in surface soil and groundwater?
Ø Will a 3rd party re-inspect the contaminated sites prior to permits being issued by the appropriate agencies?