Cost So Far
$77.7M
Money already spent on the evaluation and cleanup of hazardous sites.
Expected Additional Cost
$20.1M
The estimated amount of money needed for evaluation and cleanup of hazardous sites at this installation.
Expected Completion Date
2035
The date by which the DOD estimates cleanup of all sites will be complete. Long term monitoring may continue after this date.
71 Hazardous Sites
Below are the locations of hazardous sites associated with this military installation, according to the DOD. A site’s contamination may affect a much larger area, including public and private lands and the water supplies beneath them.
High Risk
Medium Risk
Low Risk
Risk Not Evaluated or Not Required
Response Complete
We haven't independently confirmed the location of every site. If you notice a site placed at the incorrect location, please contact us.
Not all sites in the DOD data include location information, so there may be sites listed below that are missing from the map. The risk level of a site refers to a relative risk assessment made by the DOD to prioritize the cleanup of sites.
Land Controls & Restrictions
Many sites have been declared “clean” by the DOD but are still not safe for people. This military installation is safe only with the following conditions in place: fences, warning signs, signs. see more » annual written certification of compliance with lucs a fence around controlled area, with or without gate. notice to federal or state regulators, property owners, etc. before changes in land use or ownership. a warning sign is in place surrounding the area incorporation of lucs into a base master plan groundwater use restricted. prohibit residential use in certain areas, unless prior written approval of the navy and lead regulatory agency is obtained. a landfill cover at the site prevents exposure to contaminated soil and reduces infiltration of groundwater. this cover will be inspected and maintained. prohibits the disturbance or use of existing groundwater wells, unless prior written approval of the navy and lead regulatory agency is obtained. prohibits disturbance of surface or subsurface soil due to invasive activities such as construction, unless prior written approval of the navy and lead regulatory agency is obtained. prohibits access, unless prior written approval of the navy and lead regulatory agency is obtained. « see less
6 Active Sites
Sites where military cleanup actions are still ongoing. The risk level of a site refers to a relative risk assessment made by the DOD, which prioritizes the cleanup of sites that pose greatest threat to safety, human health, and the environment.
Site ID: SITE 00015
DAHLGREN NSWC
Storage Area
Cost
$41K
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Mar 2017
Contaminated Areas
Sediment (Marine): High Risk
Contaminants: DDT 0.1 ppb DDD 0.66 ppb Arsenic 4.1 ppb Lead 47.5 ppb
Surface Water (Marine): Medium Risk
Contaminants: Arsenic (III) 4400.0 ppb Lead 15900.0 ppb Zinc 61400.0 ppb
Site ID: SITE 00061
DAHLGREN NSWC
Contaminated Soil Piles
Cost
$833K
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Jul 2018
Contaminated Areas
Soil: High Risk
Contaminants: Mercury (Methyl) 0.12 ppb Cadmium and compounds 1.7 ppb Arsenic 10.3 ppb Chromium 195.0 ppb Lead 753.0 ppb
Site ID: SITE 00020
DAHLGREN NSWC
Underground Storage Tanks
Cost
$2.02M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Sep 2009
Contaminated Areas
Groundwater: High Risk
Contaminants: Beryllium and compounds 630.0 ppb Ethyl benzene 1800.0 ppb Acetone 4900.0 ppb 1,1-Dichloroethane 8500.0 ppb p-Chloronitrobenzene 12000.0 ppb Arsenic 12200.0 ppb Hexone 65000.0 ppb Chromium VI and compounds 106000.0 ppb Lead 110000.0 ppb Copper Cyanide 134000.0 ppb Manganese and compounds 542000.0 ppb
Soil: Low Risk
Contaminants: Lead 61.0 ppb Chromium VI and compounds 110.0 ppb Copper and compounds 266.0 ppb Nickel and compounds 1400.0 ppb
Site ID: SITE 00012
DAHLGREN NSWC
Burn Area
Cost
$733K
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Mar 2001
Contaminated Areas
Groundwater: High Risk
Contaminants: Heptachlor 90.0 ppb Endrin 190.0 ppb Mercury and compounds (inorganic) 210.0 ppb Acenaphthene 700.0 ppb Cadmium and compounds 2800.0 ppb Beryllium and compounds 4300.0 ppb Arsenic (cancer endpoint) 10800.0 ppb Antimony and compounds 19300.0 ppb Naphthalene 22000.0 ppb Nickel and compounds 64500.0 ppb Lead 82700.0 ppb Chromium (total) 85700.0 ppb Copper and compounds 97300.0 ppb Vanadium 128000.0 ppb Zinc 270000.0 ppb Barium and compounds 445000.0 ppb Toluene 1700000.0 ppb Dichloroethylene, 1,1- 6200000.0 ppb Dichloroethane, 1,1- 11000000.0 ppb Aluminum 44300000.0 ppb Trichloroethane, 1,1,1- 95000000.0 ppb
Sediment (Marine): High Risk
Contaminants: Endosulfan 0.01 ppb DDT 0.01 ppb Dichloroethylene, 1,2- (mixture) 0.01 ppb DDD,4,4- 0.01 ppb DDE 0.01 ppb Carbon disulfide 0.01 ppb Endrin 0.02 ppb Methylene chloride 0.04 ppb Trichloroethylene (TCE) 0.06 ppb Diethyl phthalate 0.06 ppb Methoxychlor 0.1 ppb Benzo[a]pyrene 0.11 ppb Acetone 0.17 ppb Pyrene 0.26 ppb Fluoranthene 0.34 ppb Cadmium and compounds 0.92 ppb Beryllium and compounds 1.1 ppb Mercury and compounds (inorganic) 1.6 ppb Selenium 1.6 ppb Silver and compounds 1.7 ppb Arsenic (cancer endpoint) 5.7 ppb Nickel and compounds 15.7 ppb Chromium (total) 20.9 ppb Copper and compounds 21.9 ppb Vanadium 30.3 ppb Lead 55.2 ppb Zinc 116.0 ppb Barium and compounds 188.0 ppb Aluminum 17800.0 ppb
Surface Water (Fresh): Medium Risk
Contaminants: Tetrachloroethane, 1,1,1,2- 3000.0 ppb Methylene chloride 3000.0 ppb Carbon disulfide 4000.0 ppb Copper and compounds 4800.0 ppb Zinc 41300.0 ppb Barium and compounds 84800.0 ppb Aluminum 981000.0 ppb
Sediment (Human): Low Risk
Contaminants: Endosulfan 0.01 ppb DDT 0.01 ppb Dichloroethylene, 1,2- (mixture) 0.01 ppb DDD 0.01 ppb DDE 0.01 ppb Carbon disulfide 0.01 ppb Endrin 0.02 ppb Methylene chloride 0.04 ppb Trichloroethylene (TCE) 0.06 ppb Diethyl phthalate 0.06 ppb Methoxychlor 0.1 ppb Benzo[a]pyrene 0.11 ppb Acetone 0.17 ppb Pyrene 0.26 ppb Fluoranthene 0.34 ppb Cadmium and compounds 0.92 ppb Beryllium and compounds 1.1 ppb Mercury and compounds (inorganic) 1.6 ppb Selenium 1.6 ppb Silver and compounds 1.7 ppb Arsenic (cancer endpoint) 5.7 ppb Nickel and compounds 15.7 ppb Chromium (total) 20.9 ppb Copper and compounds 21.9 ppb Vanadium 30.3 ppb Lead 55.2 ppb Zinc 116.0 ppb Barium and compounds 188.0 ppb Aluminum 17800.0 ppb
Soil: Low Risk
Contaminants: Heptachlor epoxide 0.01 ppb Aldrin 0.01 ppb DDT 0.01 ppb Benz[a]anthracene 0.01 ppb Dieldrin 0.01 ppb Di-n-octyl phthalate 0.02 ppb Fluoranthene 0.02 ppb Benzo[k]fluoranthene 0.02 ppb DDE 0.02 ppb Benzo[b]fluoranthene 0.03 ppb Endrin 0.03 ppb Methylene chloride 0.03 ppb Butyl benzyl phthalate 0.03 ppb Chrysene 0.05 ppb Phenol 0.17 ppb Pyrene 0.2 ppb Diethyl phthalate 0.22 ppb Fluorene 0.22 ppb Mercury and compounds (inorganic) 0.36 ppb Methylphenol, 4- 0.4 ppb Naphthalene 0.4 ppb Beryllium and compounds 0.47 ppb Anthracene 0.67 ppb Toluene 0.79 ppb Benzene 0.83 ppb Nickel and compounds 8.9 ppb Dichloroethane, 1,1- 10.0 ppb Arsenic (cancer endpoint) 13.4 ppb Silver and compounds 15.5 ppb Chromium (total) 58.3 ppb Vanadium 60.8 ppb Trichloroethane, 1,1,1- 130.0 ppb Barium and compounds 141.0 ppb Lead 182.0 ppb Zinc 419.0 ppb Copper and compounds 611.0 ppb Aluminum 17400.0 ppb
Surface Water (Human): Low Risk
Contaminants: Tetrachloroethane, 1,1,1,2- 3000.0 ppb Methylene chloride 3000.0 ppb Carbon disulfide 4000.0 ppb Copper and compounds 4800.0 ppb Zinc 41300.0 ppb Barium and compounds 84800.0 ppb Aluminum 981000.0 ppb
Site ID: SITE 00014
DAHLGREN NSWC
Surface Impoundment/Lagoon
Cost
$361K
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Sep 2009
Contaminated Areas
Groundwater: High Risk
Contaminants: Chromium 2050000.0 ppb Chromium VI and compounds 2200000.0 ppb
Soil: Low Risk
Contaminants: Arsenic 4.7 ppb Vanadium 35.0 ppb Chromium 1120.0 ppb
Site ID: UXO 000001
DAHLGREN NSWC
Explosive Ordnance Disposal Area
Cost
$11.9M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Jun 2026
This site is under ongoing monitoring until Jul 2055
65 Inactive Sites
Sites where military cleanup actions are complete, according to the DOD. Note that this status does not necessarily mean the site is no longer hazardous, as many of these sites are put under long-term monitoring or other restrictions.
Site ID: SITE 00011
DAHLGREN NSWC
Landfill
Cost
Unknown
Final Cleanup Action
May 1983
Site ID: SITE 00027
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
May 1983
Site ID: SITE 00046
DAHLGREN NSWC
Landfill
Cost
Unknown
Final Cleanup Action
Sep 2002
This site is under ongoing monitoring until Feb 2013
Contaminated Areas
Surface Water (Human): High Risk
Contaminants: Mercury and compounds (inorganic) 3800.0 ppb Lead 9600.0 ppb Arsenic (cancer) 11200.0 ppb Barium and compounds 66200.0 ppb Manganese and compounds 532000.0 ppb Allyl chloride 935000.0 ppb
Soil: Medium Risk
Contaminants: Phenanthrene 0.02 ppb Benz(a)anthracene 0.04 ppb Dieldrin 0.04 ppb Benzo[b]fluoranthene 0.05 ppb Benzo[k]fluoranthene 0.05 ppb Pyrene 0.06 ppb Fluoranthene 0.06 ppb Chrysene 0.06 ppb Methylene chloride 0.27 ppb Arsenic (cancer) 6.3 ppb Barium and compounds 35.5 ppb Aluminum 8140.0 ppb
Groundwater: Low Risk
Contaminants: Benzene 1000.0 ppb Trichloroethane, 1,1,1- 6000.0 ppb Chlorobenzene 20000.0 ppb
Site ID: SITE 00062
DAHLGREN NSWC
Disposal Pit and Dry Well
Cost
Unknown
Final Cleanup Action
Aug 2005
Contaminated Areas
Soil: High Risk
Contaminants: Arsenic 8.85 ppb Chromium 13.0 ppb Lead 113.0 ppb Copper Cyanide 691.0 ppb
Groundwater: Medium Risk
Contaminants: Lead 20.0 ppb Arsenic 20.0 ppb 2-Butoxy Ethanol 249000.0 ppb
Site ID: SITE 00045
DAHLGREN NSWC
Landfill
Cost
Unknown
Final Cleanup Action
Dec 1997
Contaminated Areas
Surface Water (Human): High Risk
Contaminants: Mercury and compounds (inorganic) 3800.0 ppb Lead 9600.0 ppb Arsenic (cancer) 11200.0 ppb Barium and compounds 66200.0 ppb Manganese and compounds 532000.0 ppb Aluminum 935000.0 ppb
Soil: Medium Risk
Contaminants: Benz(a)anthracene 0.04 ppb Dieldrin 0.04 ppb Benzo[b]fluoranthene 0.05 ppb Benzo[k]fluoranthene 0.05 ppb Pyrene 0.06 ppb Fluoranthene 0.06 ppb Chrysene 0.06 ppb Methylene chloride 0.27 ppb Arsenic (cancer) 6.3 ppb Phenanthrene 24.0 ppb Barium and compounds 35.5 ppb Aluminum 8140.0 ppb
Groundwater: Low Risk
Contaminants: Benzene 1000.0 ppb 1,1,1-Trichloroethane 6000.0 ppb Chlorobenzene 20000.0 ppb
Site ID: SWMU 00085
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
Dec 1993
Site ID: SITE 00022
DAHLGREN NSWC
POL (Petroleum/Oil/Lubricants) Lines
Cost
Unknown
Final Cleanup Action
Dec 1997
Contaminated Areas
Soil: High Risk
Contaminants: Copper cyanide 200.0 ppb Copper and compounds 200.0 ppb Lead 500.0 ppb Manganese and compounds 3500.0 ppb
Site ID: SITE 00029
DAHLGREN NSWC
Disposal Pit and Dry Well
Cost
Unknown
Final Cleanup Action
Dec 1998
Contaminated Areas
Groundwater: High Risk
Contaminants: Ethylbenzene 1000.0 ppb Benzene 1000.0 ppb Butyl benzyl phthalate 1000.0 ppb Naphthalene 1000.0 ppb Xylene (mixed) 2000.0 ppb Beryllium and compounds 3600.0 ppb Arsenic (cancer endpoint) 8700.0 ppb Chromium (total) 9600.0 ppb Vanadium 19300.0 ppb Copper and compounds 61400.0 ppb Nickel and compounds 74900.0 ppb Lead 113000.0 ppb Barium and compounds 187000.0 ppb Zinc 1570000.0 ppb Aluminum 9710000.0 ppb
Soil: Low Risk
Contaminants: Indeno[1,2,3-cd]pyrene 0.02 ppb Benzo[k]fluoranthene 0.03 ppb Benzo[a]pyrene 0.03 ppb Benz[a]anthracene 0.04 ppb Benzo[b]fluoranthene 0.05 ppb Chrysene 0.05 ppb Pyrene 0.06 ppb Fluoranthene 0.06 ppb Anthracene 0.11 ppb Fluorene 0.2 ppb Phenanthrene 0.48 ppb Acetone 0.56 ppb Beryllium and compounds 0.93 ppb Mercury and compounds (inorganic) 1.6 ppb Selenium 2.3 ppb Nickel and compounds 13.8 ppb Arsenic (cancer endpoint) 17.4 ppb Chromium (total) 31.7 ppb Lead 49.4 ppb Vanadium 78.7 ppb Copper and compounds 89.3 ppb Barium and compounds 111.0 ppb Zinc 151.0 ppb Aluminum 18900.0 ppb
Site ID: SITE 00036
DAHLGREN NSWC
Mixed Waste Area
Cost
Unknown
Final Cleanup Action
Nov 1999
Contaminated Areas
Soil: Medium Risk
Contaminants: Thorium 234 (radionuclide) 200.0 ppb Lead 200.0 ppb Uranium 238 (radionuclide) 500.0 ppb Manganese and compounds 3500.0 ppb
Site ID: SITE 00052
DAHLGREN NSWC
Oil/Water Separator
Cost
Unknown
Final Cleanup Action
Aug 2004
Contaminated Areas
Soil: Medium Risk
Contaminants: Mercury and compounds (inorganic) 0.59 ppb Arsenic (cancer endpoint) 6.4 ppb Chromium (total) 97.0 ppb Barium and compounds 100.0 ppb Lead 8100.0 ppb
Site ID: SITE 00060
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
Sep 1998
Contaminated Areas
Soil: Low Risk
Contaminants: Mercury and compounds (inorganic) 0.05 ppb Cyanide (free) 0.25 ppb Trichloroethane, 1,1,1- 0.28 ppb Arsenic (cancer endpoint) 1.7 ppb Nickel and compounds 13.0 ppb Vanadium 36.0 ppb Barium and compounds 53.0 ppb Chromium (total) 77.0 ppb Copper and compounds 90.0 ppb Lead 360.0 ppb Zinc 440.0 ppb Aluminum 3300.0 ppb
Site ID: SWMU 00054
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
Dec 1993
Site ID: SWMU 00068
DAHLGREN NSWC
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Jul 1993
Site ID: SITE 00002
DAHLGREN NSWC
Landfill
Cost
$1.33M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Oct 1998
This site is under ongoing monitoring until Feb 2045
Contaminated Areas
Sediment (Marine): High Risk
Contaminants: Heptachlor 0.02 ppb Styrene 0.05 ppb Benzo[b]fluoranthene 0.05 ppb DDD,4,4- 0.06 ppb Chloroform 0.07 ppb DDE 0.08 ppb Fluoranthene 0.09 ppb DDT 0.17 ppb Pyrene 0.18 ppb Endrin 0.19 ppb Benzo[a]pyrene 0.38 ppb Chrysene 0.67 ppb Selenium 1.4 ppb Beryllium and compounds 1.6 ppb Methylene chloride 5.6 ppb Acetone 12.0 ppb Arsenic (cancer endpoint) 18.9 ppb Nickel and compounds 29.9 ppb Chromium (total) 30.2 ppb Copper and compounds 31.3 ppb Vanadium 38.5 ppb Antimony and compounds 73.5 ppb Barium and compounds 76.8 ppb Lead 110.0 ppb Zinc 139.0 ppb Aluminum 18900.0 ppb
Surface Water (Fresh): High Risk
Contaminants: Trichloroethylene (TCE) 1000.0 ppb Selenium 3000.0 ppb Vanadium 5700.0 ppb Lead 7000.0 ppb Copper and compounds 10100.0 ppb Nickel and compounds 10200.0 ppb Antimony and compounds 29300.0 ppb Zinc 59300.0 ppb Barium and compounds 63100.0 ppb Aluminum 2590000.0 ppb
Groundwater: Medium Risk
Contaminants: Diethyl phthalate 1000.0 ppb Chromium (total) 5300.0 ppb Lead 16000.0 ppb Copper and compounds 19500.0 ppb Nickel and compounds 34800.0 ppb Zinc 81700.0 ppb Barium and compounds 175000.0 ppb Aluminum 3170000.0 ppb
Sediment (Human): Medium Risk
Contaminants: Heptachlor 0.02 ppb Styrene 0.05 ppb Benzo[b]fluoranthene 0.05 ppb DDD 0.06 ppb Chloroform 0.07 ppb DDE 0.08 ppb Fluoranthene 0.09 ppb DDT 0.17 ppb Pyrene 0.18 ppb Endrin 0.19 ppb Benzo[a]pyrene 0.38 ppb Chrysene 0.67 ppb Selenium 1.4 ppb Beryllium and compounds 1.6 ppb Methylene chloride 5.6 ppb Acetone 12.0 ppb Arsenic (cancer endpoint) 18.9 ppb Nickel and compounds 29.9 ppb Chromium (total) 30.2 ppb Copper and compounds 31.3 ppb Vanadium 38.5 ppb Antimony and compounds 73.5 ppb Barium and compounds 76.8 ppb Lead 110.0 ppb Zinc 139.0 ppb Aluminum 18900.0 ppb
Soil: Medium Risk
Contaminants: DDT 0.01 ppb DDE 0.01 ppb Pyrene 0.02 ppb Benzo[b]fluoranthene 0.02 ppb Fluoranthene 0.02 ppb Benzo[k]fluoranthene 0.02 ppb Chrysene 0.02 ppb Benz[a]anthracene 0.02 ppb Toluene 0.03 ppb Butyl benzyl phthalate 0.03 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.09 ppb Mercury and compounds (inorganic) 0.12 ppb Silver and compounds 0.56 ppb Beryllium and compounds 0.85 ppb Nickel and compounds 11.8 ppb Arsenic (cancer endpoint) 18.7 ppb Copper and compounds 19.7 ppb Antimony and compounds 22.1 ppb Lead 31.6 ppb Zinc 43.2 ppb Chromium (total) 61.3 ppb Barium and compounds 76.9 ppb Vanadium 102.0 ppb Aluminum 31200.0 ppb
Surface Water (Human): Medium Risk
Contaminants: Trichloroethylene (TCE) 1000.0 ppb Selenium 3000.0 ppb Vanadium 5700.0 ppb Lead 7000.0 ppb Copper and compounds 10100.0 ppb Nickel and compounds 10200.0 ppb Antimony and compounds 29300.0 ppb Zinc 59300.0 ppb Barium and compounds 63100.0 ppb Aluminum 2590000.0 ppb
Site ID: SITE 00001
DAHLGREN NSWC
Unexploded Munitions and Ordnance Area
Cost
Unknown
Final Cleanup Action
Sep 2007
Contaminated Areas
Soil: Medium Risk
Contaminants: Mercury 0.12 ppb Nickel and compounds 11.8 ppb Antimony and compounds 20.8 ppb Arsenic (cancer) 20.8 ppb Lead 21.3 ppb Chromium VI and compounds 61.3 ppb Barium and compounds 75.8 ppb Manganese and compounds 125.0 ppb Aluminum 31200.0 ppb
Site ID: SITE 00009
DAHLGREN NSWC
Burn Area
Cost
$1.43M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Nov 1999
This site is under ongoing monitoring until Feb 2045
Contaminated Areas
Groundwater: High Risk
Contaminants: Heptachlor epoxide 80.0 ppb Endrin 130.0 ppb DDD 200.0 ppb Mercury and compounds (inorganic) 230.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 2000.0 ppb Indeno[1,2,3-cd]pyrene 2000.0 ppb Benzene 3000.0 ppb Benzo[b]fluoranthene 4000.0 ppb Benzo[k]fluoranthene 4000.0 ppb Benzo[a]pyrene 4000.0 ppb Ethylbenzene 5000.0 ppb Benz[a]anthracene 5000.0 ppb Methylphenol, 2- 5000.0 ppb Chrysene 6000.0 ppb Cadmium and compounds 6200.0 ppb Anthracene 9000.0 ppb Dimethylphenol, 2,4- 12000.0 ppb Acetone 12000.0 ppb Arsenic (cancer endpoint) 13200.0 ppb Methylphenol, 4- 15000.0 ppb Pyrene 15000.0 ppb Fluoranthene 16000.0 ppb Vanadium 18100.0 ppb Silver and compounds 19800.0 ppb Acenaphthene 25000.0 ppb Fluorene 27000.0 ppb Chromium (total) 35300.0 ppb Antimony and compounds 39100.0 ppb Phenanthrene 49000.0 ppb Carbazole 56000.0 ppb Nickel and compounds 62700.0 ppb Naphthalene 140000.0 ppb Lead 1370000.0 ppb Copper and compounds 1460000.0 ppb Zinc 2940000.0 ppb Barium and compounds 3410000.0 ppb Aluminum 27400000.0 ppb
Sediment (Marine): High Risk
Contaminants: Acetone 0.01 ppb Carbon disulfide 0.01 ppb Endrin 0.02 ppb Dieldrin 0.03 ppb Methylphenol, 4- 0.04 ppb Dimethyl phthalate 0.04 ppb DDT 0.05 ppb Fluorene 0.05 ppb Carbazole 0.07 ppb Pentachlorophenol 0.08 ppb Methylene chloride 0.1 ppb Dibenz[ah]anthracene 0.11 ppb Anthracene 0.14 ppb DDE 0.28 ppb Indeno[1,2,3-cd]pyrene 0.29 ppb Naphthalene 0.35 ppb Mercury and compounds (inorganic) 0.39 ppb Benzo[a]pyrene 0.5 ppb Benzo[k]fluoranthene 0.55 ppb Benz[a]anthracene 0.55 ppb Benzo[b]fluoranthene 0.56 ppb Chrysene 0.6 ppb Phenanthrene 0.6 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.8 ppb Fluoranthene 0.92 ppb Pyrene 1.0 ppb Cadmium and compounds 1.2 ppb Beryllium and compounds 1.5 ppb Silver and compounds 3.1 ppb DDD,4,4- 9.1 ppb Arsenic (cancer endpoint) 17.1 ppb Nickel and compounds 23.7 ppb Chromium (total) 43.6 ppb Vanadium 55.0 ppb Antimony and compounds 75.4 ppb Phenol 105.0 ppb Barium and compounds 124.0 ppb Lead 135.0 ppb Copper and compounds 155.0 ppb Zinc 352.0 ppb Aluminum 31100.0 ppb
Surface Water (Fresh): High Risk
Contaminants: Heptachlor 90.0 ppb Fluoranthene 500.0 ppb Phenanthrene 600.0 ppb Pyrene 700.0 ppb Dichlorobenzene, 1,4- 1000.0 ppb Bis(2-chloroethyl)ether 1000.0 ppb Mercury and compounds (inorganic) 1000.0 ppb Beryllium and compounds 1500.0 ppb Cadmium and compounds 2000.0 ppb Acetone 4000.0 ppb Carbon disulfide 4000.0 ppb Selenium 4000.0 ppb Silver and compounds 4100.0 ppb Butyl benzyl phthalate 10000.0 ppb Arsenic (cancer endpoint) 16000.0 ppb Chromium (total) 23200.0 ppb Nickel and compounds 33900.0 ppb Vanadium 76500.0 ppb Copper and compounds 124000.0 ppb Barium and compounds 141000.0 ppb Lead 252000.0 ppb Zinc 368000.0 ppb Aluminum 15200000.0 ppb
Sediment (Human): Medium Risk
Contaminants: Acetone 0.01 ppb Carbon disulfide 0.01 ppb Endrin 0.02 ppb Dieldrin 0.03 ppb Methylphenol, 4- 0.04 ppb Dimethyl phthalate 0.04 ppb DDT 0.05 ppb Fluorene 0.05 ppb Carbazole 0.07 ppb Pentachlorophenol 0.08 ppb Methylene chloride 0.1 ppb Dibenz[ah]anthracene 0.11 ppb Anthracene 0.14 ppb DDE 0.28 ppb Indeno[1,2,3-cd]pyrene 0.29 ppb Naphthalene 0.35 ppb Mercury and compounds (inorganic) 0.39 ppb Benzo[a]pyrene 0.5 ppb Benzo[k]fluoranthene 0.55 ppb Benz[a]anthracene 0.55 ppb Benzo[b]fluoranthene 0.56 ppb Chrysene 0.6 ppb Phenanthrene 0.6 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.8 ppb Fluoranthene 0.92 ppb Pyrene 1.0 ppb Cadmium and compounds 1.2 ppb Beryllium and compounds 1.5 ppb Silver and compounds 3.1 ppb DDD 9.1 ppb Arsenic (cancer endpoint) 17.1 ppb Nickel and compounds 23.7 ppb Chromium (total) 43.6 ppb Vanadium 55.0 ppb Antimony and compounds 75.4 ppb Phenol 105.0 ppb Barium and compounds 124.0 ppb Lead 135.0 ppb Copper and compounds 155.0 ppb Zinc 352.0 ppb Aluminum 31100.0 ppb
Surface Water (Human): Medium Risk
Contaminants: Heptachlor 90.0 ppb Fluoranthene 500.0 ppb Phenanthrene 600.0 ppb Pyrene 700.0 ppb Dichlorobenzene, 1,4- 1000.0 ppb Bis(2-chloroethyl)ether 1000.0 ppb Mercury and compounds (inorganic) 1000.0 ppb Beryllium and compounds 1500.0 ppb Cadmium and compounds 2000.0 ppb Acetone 4000.0 ppb Carbon disulfide 4000.0 ppb Selenium 4000.0 ppb Silver and compounds 4100.0 ppb Butyl benzyl phthalate 10000.0 ppb Arsenic (cancer endpoint) 16000.0 ppb Chromium (total) 23200.0 ppb Nickel and compounds 33900.0 ppb Vanadium 76500.0 ppb Copper and compounds 124000.0 ppb Barium and compounds 141000.0 ppb Lead 252000.0 ppb Zinc 368000.0 ppb Aluminum 15200000.0 ppb
Site ID: SITE 00010
DAHLGREN NSWC
Surface Impoundment/Lagoon
Cost
$98K
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Sep 1999
This site is under ongoing monitoring until Feb 2022
Contaminated Areas
Surface Water (Fresh): High Risk
Contaminants: Mercury and compounds (inorganic) 410.0 ppb Arsenic (cancer endpoint) 2600.0 ppb Lead 2900.0 ppb Barium and compounds 29800.0 ppb Acetone 100000.0 ppb Aluminum 645000.0 ppb
Sediment (Marine): Medium Risk
Contaminants: Pyrene 0.07 ppb Benzo[a]pyrene 0.18 ppb Acetone 0.31 ppb Selenium 1.4 ppb Beryllium and compounds 2.7 ppb Bis(2-ethylhexyl)phthalate (DEHP) 6.0 ppb Arsenic (cancer endpoint) 6.2 ppb Nickel and compounds 19.7 ppb Copper and compounds 29.6 ppb Chromium (total) 35.4 ppb Vanadium 38.1 ppb Lead 42.7 ppb Phenol 117.0 ppb Zinc 168.0 ppb Barium and compounds 203.0 ppb Aluminum 25600.0 ppb
Sediment (Human): Low Risk
Contaminants: Pyrene 0.07 ppb Benzo[a]pyrene 0.18 ppb Acetone 0.31 ppb Selenium 1.4 ppb Beryllium and compounds 2.7 ppb Bis(2-ethylhexyl)phthalate (DEHP) 6.0 ppb Arsenic (cancer endpoint) 6.2 ppb Nickel and compounds 19.7 ppb Copper and compounds 29.6 ppb Chromium (total) 35.4 ppb Vanadium 38.1 ppb Lead 42.7 ppb Phenol 117.0 ppb Zinc 168.0 ppb Barium and compounds 203.0 ppb Aluminum 25600.0 ppb
Surface Water (Human): Low Risk
Contaminants: Mercury and compounds (inorganic) 410.0 ppb Arsenic (cancer endpoint) 2600.0 ppb Lead 2900.0 ppb Barium and compounds 29800.0 ppb Acetone 100000.0 ppb Aluminum 645000.0 ppb
Site ID: SITE 00017
DAHLGREN NSWC
Landfill
Cost
$1.5M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Jul 2001
This site is under ongoing monitoring until Feb 2045
Contaminated Areas
Surface Water (Fresh): High Risk
Contaminants: Methylene chloride 4000.0 ppb Carbon disulfide 13000.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 26000.0 ppb Mercury and compounds (inorganic) 3800000.0 ppb Lead 9600000.0 ppb Arsenic (cancer endpoint) 11200000.0 ppb Nickel and compounds 12300000.0 ppb Copper and compounds 21800000.0 ppb Zinc 96200000.0 ppb Barium and compounds 110000000.0 ppb Aluminum 1110000000.0 ppb
Surface Water (Human): High Risk
Contaminants: Methylene chloride 4000.0 ppb Carbon disulfide 13000.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 26000.0 ppb Mercury and compounds (inorganic) 3800000.0 ppb Lead 9600000.0 ppb Arsenic (cancer endpoint) 11200000.0 ppb Nickel and compounds 12300000.0 ppb Copper and compounds 21800000.0 ppb Zinc 96200000.0 ppb Barium and compounds 110000000.0 ppb Aluminum 1110000000.0 ppb
Groundwater: Medium Risk
Contaminants: Heptachlor 50.0 ppb Endrin 170.0 ppb Mercury and compounds (inorganic) 480.0 ppb Butyl benzyl phthalate 700.0 ppb Chlorophenol, 2- 700.0 ppb Benzene 1000.0 ppb Beryllium and compounds 2500.0 ppb Diethyl phthalate 3000.0 ppb Cadmium and compounds 3800.0 ppb Dichlorobenzene, 1,4- 4000.0 ppb Trichloroethane, 1,1,1- 6000.0 ppb Dichloroethane, 1,1- 6000.0 ppb Chromium (total) 12000.0 ppb Copper and compounds 19500.0 ppb Chlorobenzene 20000.0 ppb Vanadium 27400.0 ppb Arsenic (cancer endpoint) 39200.0 ppb Lead 42300.0 ppb Nickel and compounds 49900.0 ppb Zinc 143000.0 ppb Barium and compounds 156000.0 ppb Aluminum 12800000.0 ppb
Sediment (Human): Medium Risk
Contaminants: DDE 0.02 ppb DDD 0.03 ppb DDT 0.05 ppb Dibenz[ah]anthracene 0.15 ppb Fluorene 0.15 ppb Acetone 0.2 ppb Acenaphthene 0.2 ppb Carbazole 0.24 ppb Anthracene 0.4 ppb Indeno[1,2,3-cd]pyrene 0.76 ppb Benzo[a]pyrene 0.93 ppb Beryllium and compounds 1.0 ppb Cyanide (free) 1.1 ppb Silver and compounds 1.1 ppb Benzo[b]fluoranthene 1.5 ppb Phenanthrene 1.5 ppb Fluoranthene 1.7 ppb Pyrene 1.8 ppb Nickel and compounds 11.2 ppb Copper and compounds 11.3 ppb Chromium (total) 20.9 ppb Lead 30.3 ppb Vanadium 37.6 ppb Arsenic (cancer endpoint) 42.5 ppb Zinc 61.9 ppb Barium and compounds 157.0 ppb Phenol 729.0 ppb Aluminum 18300.0 ppb
Sediment (Marine): Medium Risk
Contaminants: DDE 0.02 ppb DDD,4,4- 0.03 ppb DDT 0.05 ppb Dibenz[ah]anthracene 0.15 ppb Fluorene 0.15 ppb Acetone 0.2 ppb Acenaphthene 0.2 ppb Carbazole 0.24 ppb Anthracene 0.4 ppb Indeno[1,2,3-cd]pyrene 0.76 ppb Benzo[a]pyrene 0.93 ppb Beryllium and compounds 1.0 ppb Cyanide (free) 1.1 ppb Silver and compounds 1.1 ppb Benzo[b]fluoranthene 1.5 ppb Phenanthrene 1.5 ppb Fluoranthene 1.7 ppb Pyrene 1.8 ppb Nickel and compounds 11.2 ppb Copper and compounds 11.3 ppb Chromium (total) 20.9 ppb Lead 30.3 ppb Vanadium 37.6 ppb Arsenic (cancer endpoint) 42.5 ppb Zinc 61.9 ppb Barium and compounds 157.0 ppb Phenol 729.0 ppb Aluminum 18300.0 ppb
Soil: Low Risk
Contaminants: DDD 0.01 ppb Di-n-octyl phthalate 0.02 ppb Methoxychlor 0.02 ppb Phenanthrene 0.02 ppb Indeno[1,2,3-cd]pyrene 0.04 ppb Benz[a]anthracene 0.04 ppb Dieldrin 0.04 ppb Benzo[b]fluoranthene 0.05 ppb Benzo[k]fluoranthene 0.05 ppb Benzo[a]pyrene 0.05 ppb Pyrene 0.06 ppb Fluoranthene 0.06 ppb Chrysene 0.06 ppb DDE 0.07 ppb Methylene chloride 0.27 ppb Beryllium and compounds 0.44 ppb Silver and compounds 1.1 ppb Lead 3.4 ppb Acetone 5.0 ppb Arsenic (cancer endpoint) 6.7 ppb Copper and compounds 11.3 ppb Nickel and compounds 17.2 ppb Vanadium 18.6 ppb Zinc 24.3 ppb Barium and compounds 35.5 ppb Chromium (total) 39.0 ppb Aluminum 8140.0 ppb
Site ID: SITE 00037
DAHLGREN NSWC
Landfill
Cost
$301K
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Sep 2007
This site is under ongoing monitoring until Feb 2045
Contaminated Areas
Sediment (Marine): High Risk
Contaminants: Cadmium and compounds 3.4 ppb Arsenic (cancer) 13.0 ppb Chromium VI and compounds 40.8 ppb Vanadium 67.3 ppb
Groundwater: Medium Risk
Contaminants: Uranium 234 (radionuclide) 1070.0 ppb Arsenic (cancer) 6700.0 ppb Chromium VI and compounds 19100.0 ppb Lead 61900.0 ppb Manganese and compounds 1430000.0 ppb
Soil: Medium Risk
Contaminants: Mercury 0.37 ppb Arsenic (cancer) 12.9 ppb Chromium VI and compounds 29.6 ppb Lead 86.8 ppb Barium and compounds 106.0 ppb
Sediment (Human): Low Risk
Contaminants: Cadmium and compounds 3.4 ppb Beryllium and compounds 5.0 ppb Arsenic 13.0 ppb Copper and compounds 31.7 ppb Chromium 40.8 ppb Barium Cyanide 133.0 ppb
Site ID: SITE 00003
DAHLGREN NSWC
Burn Area
Cost
Unknown
Final Cleanup Action
Sep 2000
Contaminated Areas
Groundwater: High Risk
Contaminants: Beryllium and compounds 4300.0 ppb Antimony and compounds 19300.0 ppb Lead 82700.0 ppb Chromium VI and compounds 85700.0 ppb Vanadium 128000.0 ppb Toluene 1700000.0 ppb Dichloroethylene, 1,1- 6200000.0 ppb Dichlorvos 11000000.0 ppb Aluminum 44300000.0 ppb Trichloroethane, 1,1,1- 95000000.0 ppb
Surface Water (Marine): Medium Risk
Contaminants: Tetrachloroethane, 1,1,1,2- 3000.0 ppb Copper and compounds 4800.0 ppb Zinc 41300.0 ppb Barium and compounds 84800.0 ppb Manganese and compounds 128000.0 ppb Aluminum phosphide 981000.0 ppb
Site ID: SITE 00004
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
Jun 1982
Contaminated Areas
Surface Water (Marine): High Risk
Contaminants: DDT 100.0 ppb DDD 660.0 ppb Ethyl benzene 4400.0 ppb Lead 15900.0 ppb Zinc 61400.0 ppb
Site ID: SITE 00005
DAHLGREN NSWC
Unexploded Munitions and Ordnance Area
Cost
Unknown
Final Cleanup Action
Sep 2007
Contaminated Areas
Soil: Medium Risk
Contaminants: Mercury and compounds (methyl) 0.12 ppb Nickel and compounds 11.8 ppb Antimony and compounds 20.8 ppb Arsenic (cancer) 20.8 ppb Lead 21.3 ppb Chromium VI and compounds 61.3 ppb Barium and compounds 75.8 ppb Manganese and compounds 125.0 ppb Aluminum 31200.0 ppb
Site ID: SITE 00007
DAHLGREN NSWC
Unexploded Munitions and Ordnance Area
Cost
Unknown
Final Cleanup Action
May 1983
Site ID: SITE 00008
DAHLGREN NSWC
Unexploded Munitions and Ordnance Area
Cost
Unknown
Final Cleanup Action
May 1983
Site ID: SITE 00013
DAHLGREN NSWC
Landfill
Cost
Unknown
Final Cleanup Action
Aug 2003
Contaminated Areas
Sediment (Marine): High Risk
Contaminants: Acenaphthene 0.88 ppb Anthracene 1.1 ppb Benzo[k]fluoranthene 1.9 ppb Chrysene 2.9 ppb Phenanthrene 3.2 ppb Pyrene 4.9 ppb Fluoranthene 5.6 ppb Lead 56.1 ppb Barium and compounds 62.7 ppb Zinc 219.0 ppb
Site ID: SITE 00016
DAHLGREN NSWC
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
May 1983
Site ID: SITE 00018
DAHLGREN NSWC
Incinerator
Cost
Unknown
Final Cleanup Action
Sep 2003
Contaminated Areas
Soil: Low Risk
Contaminants: 1,1,1-Trichloroethane 0.01 ppb Mercury and compounds (inorganic) 0.14 ppb Arsenic (cancer) 1.8 ppb Chromium VI and compounds 9.3 ppb Barium and compounds 39.0 ppb
Groundwater: Risk Not Evaluated
Site ID: SITE 00019
DAHLGREN NSWC
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Dec 1996
Contaminated Areas
Soil: High Risk
Contaminants: Fluorene 0.02 ppb Acenaphthene 0.04 ppb Anthracene 0.06 ppb Carbazole 0.06 ppb Indeno[1,2,3-cd]pyrene 0.2 ppb Benzo[a]pyrene 0.27 ppb Benz[a]anthracene 0.27 ppb Phenanthrene 0.38 ppb Chrysene 0.42 ppb Fluoranthene 0.54 ppb Selenium 0.67 ppb Benzo[b]fluoranthene 0.68 ppb Pyrene 0.7 ppb Silver and compounds 1.1 ppb Cadmium and compounds 1.2 ppb Beryllium and compounds 1.3 ppb Arsenic (cancer endpoint) 32.8 ppb Copper and compounds 34.5 ppb Nickel and compounds 35.6 ppb Lead 93.9 ppb Chromium (total) 105.0 ppb Zinc 124.0 ppb Vanadium 125.0 ppb Barium and compounds 287.0 ppb Aluminum 102000.0 ppb
Groundwater: Medium Risk
Contaminants: Mercury and compounds (inorganic) 480.0 ppb Diethyl phthalate 600.0 ppb Dibenz[ah]anthracene 700.0 ppb Silver and compounds 2800.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 3000.0 ppb Beryllium and compounds 5100.0 ppb Acetone 10000.0 ppb Cyanide (free) 12700.0 ppb Arsenic (cancer endpoint) 13500.0 ppb Antimony and compounds 19500.0 ppb Nickel and compounds 33500.0 ppb Lead 107000.0 ppb Copper and compounds 111000.0 ppb Chromium (total) 112000.0 ppb Vanadium 178000.0 ppb Zinc 184000.0 ppb Barium and compounds 541000.0 ppb Aluminum 35900000.0 ppb
Site ID: SITE 00021
DAHLGREN NSWC
Above Ground Storage Tank
Cost
Unknown
Final Cleanup Action
Dec 1997
Contaminated Areas
Soil: High Risk
Contaminants: Copper cyanide 200.0 ppb Copper and compounds 200.0 ppb Lead 500.0 ppb Manganese and compounds 3500.0 ppb
Site ID: SITE 00023
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
Sep 2008
Contaminated Areas
Soil: Medium Risk
Contaminants: Polychlorinated biphenyls (PCBs) 100.0 ppb
Site ID: SITE 00024
DAHLGREN NSWC
Sewage Treatment Plant
Cost
Unknown
Final Cleanup Action
May 1983
Site ID: SITE 00025
DAHLGREN NSWC
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Dec 2001
This site is under ongoing monitoring until Feb 2013
Contaminated Areas
Groundwater: High Risk
Contaminants: Heptachlor epoxide 50.0 ppb Endosulfan 110.0 ppb DDD 160.0 ppb Endrin 170.0 ppb Mercury and compounds (inorganic) 370.0 ppb Diethyl phthalate 800.0 ppb Carbon disulfide 2000.0 ppb Vanadium 2100.0 ppb Silver and compounds 3700.0 ppb Beryllium and compounds 5100.0 ppb Trichloroethylene (TCE) 7000.0 ppb Arsenic (cancer endpoint) 12400.0 ppb Chromium (total) 16300.0 ppb Acetone 21000.0 ppb Copper and compounds 23800.0 ppb Antimony and compounds 24600.0 ppb Lead 27700.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 120000.0 ppb Nickel and compounds 148000.0 ppb Barium and compounds 188000.0 ppb Zinc 360000.0 ppb Aluminum 7880000.0 ppb
Soil: High Risk
Contaminants: Toluene 0.01 ppb Heptachlor epoxide 0.03 ppb Phenol 0.03 ppb Naphthalene 0.03 ppb Methylene chloride 0.04 ppb Butyl benzyl phthalate 0.04 ppb Fluorene 0.06 ppb Carbazole 0.06 ppb Acetone 0.08 ppb Methoxychlor 0.17 ppb Anthracene 0.19 ppb Endosulfan 0.21 ppb Heptachlor 0.23 ppb Dibenz[ah]anthracene 0.28 ppb Phenanthrene 0.61 ppb Benzo[k]fluoranthene 0.68 ppb Indeno[1,2,3-cd]pyrene 0.7 ppb Selenium 0.78 ppb Benzo[a]pyrene 0.81 ppb Dinitrotoluene, 2,4- 0.85 ppb Benzo[b]fluoranthene 0.89 ppb Di-n-octyl phthalate 1.1 ppb Chrysene 1.2 ppb Benz[a]anthracene 1.2 ppb Aldrin 1.4 ppb Cadmium and compounds 1.4 ppb Fluoranthene 1.7 ppb Beryllium and compounds 2.0 ppb Pyrene 2.1 ppb DDE 2.5 ppb Bis(2-ethylhexyl)phthalate (DEHP) 4.3 ppb Mercury and compounds (inorganic) 4.3 ppb Endrin 8.26 ppb Arsenic (cancer endpoint) 18.9 ppb DDD 56.0 ppb Chromium (total) 56.3 ppb Vanadium 71.6 ppb Copper and compounds 78.2 ppb Nickel and compounds 78.7 ppb Antimony and compounds 138.0 ppb Barium and compounds 164.0 ppb Lead 170.0 ppb Zinc 187.0 ppb Dieldrin 260.0 ppb Aluminum 41800.0 ppb
Sediment (Marine): High Risk
Contaminants: Heptachlor epoxide 0.01 ppb Aldrin 0.01 ppb Heptachlor 0.01 ppb Endrin 0.04 ppb Indeno[1,2,3-cd]pyrene 0.05 ppb Phenanthrene 0.07 ppb Benzo[k]fluoranthene 0.08 ppb Benzo[a]pyrene 0.09 ppb Benz[a]anthracene 0.09 ppb Chrysene 0.1 ppb Pyrene 0.14 ppb Fluoranthene 0.14 ppb Benzo[b]fluoranthene 0.23 ppb Acetone 0.32 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.47 ppb Mercury and compounds (inorganic) 1.1 ppb Beryllium and compounds 1.3 ppb Cadmium and compounds 3.1 ppb DDT 3.2 ppb DDE 5.8 ppb Dieldrin 11.0 ppb Arsenic (cancer endpoint) 14.3 ppb Nickel and compounds 18.1 ppb DDD,4,4- 30.0 ppb Chromium (total) 33.0 ppb Vanadium 41.6 ppb Barium and compounds 114.0 ppb Lead 145.0 ppb Zinc 296.0 ppb Copper and compounds 310.0 ppb Aluminum 14100.0 ppb
Surface Water (Fresh): High Risk
Contaminants: DDE 110.0 ppb DDD 220.0 ppb Beryllium and compounds 1300.0 ppb Dieldrin 1500.0 ppb Arsenic (cancer endpoint) 3700.0 ppb Lead 4400.0 ppb Nickel and compounds 53000.0 ppb Zinc 542000.0 ppb Aluminum 1420000.0 ppb
Sediment (Human): Medium Risk
Contaminants: Heptachlor epoxide 0.01 ppb Aldrin 0.01 ppb Heptachlor 0.01 ppb Endrin 0.04 ppb Indeno[1,2,3-cd]pyrene 0.05 ppb Phenanthrene 0.07 ppb Benzo[k]fluoranthene 0.08 ppb Benzo[a]pyrene 0.09 ppb Benz[a]anthracene 0.09 ppb Chrysene 0.1 ppb Pyrene 0.14 ppb Fluoranthene 0.14 ppb Benzo[b]fluoranthene 0.23 ppb Acetone 0.32 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.47 ppb Mercury and compounds (inorganic) 1.1 ppb Beryllium and compounds 1.3 ppb Cadmium and compounds 3.1 ppb DDT 3.2 ppb DDE 5.8 ppb Dieldrin 11.0 ppb Arsenic (cancer endpoint) 14.3 ppb Nickel and compounds 18.1 ppb DDD 30.0 ppb Chromium (total) 33.0 ppb Vanadium 41.6 ppb Barium and compounds 114.0 ppb Lead 145.0 ppb Zinc 296.0 ppb Copper and compounds 310.0 ppb Aluminum 14100.0 ppb
Surface Water (Human): Medium Risk
Contaminants: DDE 110.0 ppb DDD 220.0 ppb Beryllium and compounds 1300.0 ppb Dieldrin 1500.0 ppb Arsenic (cancer endpoint) 3700.0 ppb Lead 4400.0 ppb Nickel and compounds 53000.0 ppb Zinc 542000.0 ppb Aluminum 1420000.0 ppb
Site ID: SITE 00026
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
May 1983
Site ID: SITE 00028
DAHLGREN NSWC
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 2005
Contaminated Areas
Soil: Low Risk
Contaminants: Toluene 20.0 ppb Xylene (mixed) 20.0 ppb Benzene 20.0 ppb
Site ID: SITE 00030
DAHLGREN NSWC
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 1994
Site ID: SITE 00031
DAHLGREN NSWC
Landfill
Cost
Unknown
Final Cleanup Action
Sep 2003
Contaminated Areas
Groundwater: High Risk
Contaminants: Cadmium and compounds 2600.0 ppb Vanadium 4500.0 ppb Chromium VI and compounds 9700.0 ppb Zinc 86500.0 ppb Manganese 257000.0 ppb
Soil: Medium Risk
Contaminants: Beryllium and compounds 0.42 ppb Arsenic (cancer) 5.4 ppb Chromium VI and compounds 10.5 ppb Nickel and compounds 22.9 ppb Lead 31.4 ppb Barium and compounds 58.7 ppb Zinc 214.0 ppb Iron 9680.0 ppb
Sediment (Marine): Medium Risk
Contaminants: Lead 6.2 ppb Barium and compounds 6.7 ppb Arsenic (cancer) 7.2 ppb Chromium VI and compounds 13.5 ppb Vanadium 20.4 ppb
Surface Water (Human): Medium Risk
Contaminants: Nickel and compounds 1400.0 ppb Barium and compounds 39500.0 ppb Manganese 54700.0 ppb Aluminum 174000.0 ppb
Site ID: SITE 00033
DAHLGREN NSWC
Spill Site Area
Cost
Unknown
Final Cleanup Action
May 1983
Contaminated Areas
Soil: Medium Risk
Contaminants: Nitrate 100.0 ppb Nitrite 100.0 ppb Nitroguanidine 100.0 ppb Nitrobenzene 100.0 ppb
Site ID: SITE 00035
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
May 1983
Site ID: SITE 00039
DAHLGREN NSWC
Contaminated Sediments
Cost
Unknown
Final Cleanup Action
Jun 1996
Contaminated Areas
Soil: Low Risk
Contaminants: Cadmium and compounds 5.2 ppb Arsenic (cancer) 14.5 ppb Manganese and compounds 360.0 ppb
Site ID: SITE 00040
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
Sep 2005
Contaminated Areas
Soil: Medium Risk
Contaminants: Trichloroethane, 1,1,1- 50.0 ppb Trichloroethylene (TCE) 50.0 ppb Lead 100.0 ppb
Site ID: SITE 00043
DAHLGREN NSWC
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Aug 2004
Contaminated Areas
Groundwater: High Risk
Contaminants: Lead 110000.0 ppb
Soil: Low Risk
Contaminants: Lead 61.0 ppb Chromium (total) 110.0 ppb Copper and compounds 266.0 ppb Nickel and compounds 1400.0 ppb
Site ID: SITE 00044
DAHLGREN NSWC
Disposal Pit and Dry Well
Cost
Unknown
Final Cleanup Action
Sep 2000
Contaminated Areas
Groundwater: High Risk
Contaminants: Beryllium and compounds 4300.0 ppb Antimony and compounds 19300.0 ppb Lead 82700.0 ppb Chromium VI and compounds 85700.0 ppb Vanadium 128000.0 ppb Toluene 1700000.0 ppb Dichloroethylene, 1,1- 6200000.0 ppb Dichloroethane, 1,1- 11000000.0 ppb Aluminum 44300000.0 ppb Trichloroethane, 1,1,1- 95000000.0 ppb
Soil: High Risk
Contaminants: Beryllium and compounds 0.47 ppb Anthracene 0.67 ppb Lead 13.4 ppb Arsenic (cancer) 13.4 ppb Silver cyanide 15.5 ppb Chromium VI and compounds 58.3 ppb Vanadium 60.8 ppb Trichloroethane, 1,1,1- 130.0 ppb Copper and compounds 611.0 ppb Aluminum phosphide 17400.0 ppb
Surface Water (Marine): High Risk
Contaminants: Copper and compounds 4800.0 ppb Zinc 41300.0 ppb
Site ID: SITE 00047
DAHLGREN NSWC
Explosive Ordnance Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 2006
Contaminated Areas
Soil: High Risk
Contaminants: Mercury 0.12 ppb Nickel and compounds 11.8 ppb Antimony and compounds 20.8 ppb Arsenic (cancer) 20.8 ppb Lead 21.3 ppb Chromium VI and compounds 61.3 ppb Barium and compounds 75.8 ppb Manganese and compounds 125.0 ppb Aluminum 31200.0 ppb
Site ID: SITE 00048
DAHLGREN NSWC
Above Ground Storage Tank
Cost
Unknown
Final Cleanup Action
May 1996
Site ID: SITE 00049
DAHLGREN NSWC
Radioactive Waste Area
Cost
Unknown
Final Cleanup Action
Sep 2001
Contaminated Areas
Soil: High Risk
Contaminants: Chromium VI and compounds 40.0 ppb Arsenic (cancer) 69.0 ppb Thorium 234 (radionuclide) 200.0 ppb Uranium 238 (radionuclide) 500.0 ppb Lead 543.0 ppb Manganese and compounds 3500.0 ppb
Site ID: SITE 00050
DAHLGREN NSWC
Landfill
Cost
Unknown
Final Cleanup Action
Sep 2003
This site is under ongoing monitoring until Dec 2010
Contaminated Areas
Surface Water (Human): High Risk
Contaminants: Mercury and compounds (inorganic) 3800.0 ppb Arsenic (cancer) 11200.0 ppb Barium and compounds 66200.0 ppb Manganese and compounds 532000.0 ppb Aluminum phosphide 935000.0 ppb
Site ID: SITE 00051
DAHLGREN NSWC
Contaminated Buildings
Cost
Unknown
Final Cleanup Action
May 1996
Contaminated Areas
Groundwater: High Risk
Contaminants: Arsenic (cancer) 6400.0 ppb Lead 113000.0 ppb Zinc 1570000.0 ppb Manganese and compounds 2600000.0 ppb Aluminum 9710000.0 ppb
Site ID: SITE 00054
DAHLGREN NSWC
Oil/Water Separator
Cost
Unknown
Final Cleanup Action
Dec 1997
Contaminated Areas
Groundwater: Medium Risk
Contaminants: Lead 40000.0 ppb 1,1-Dichloroethylene 350000.0 ppb
Site ID: SITE 00055
DAHLGREN NSWC
Contaminated Sediments
Cost
Unknown
Final Cleanup Action
Sep 2003
Contaminated Areas
Sediment (Human): Medium Risk
Contaminants: Mercury and compounds (inorganic) 0.26 ppb Arsenic (cancer) 10.0 ppb Chromium VI and compounds 36.0 ppb Lead 190.0 ppb
Site ID: SITE 00056
DAHLGREN NSWC
Spill Site Area
Cost
Unknown
Final Cleanup Action
Aug 2004
Contaminated Areas
Soil: Medium Risk
Contaminants: Mercury and compounds (inorganic) 0.34 ppb Arsenic (noncancer) 8.0 ppb Manganese and compounds 34.0 ppb Barium and compounds 49.0 ppb Aluminum 12000.0 ppb
Site ID: SITE 00057
DAHLGREN NSWC
Landfill
Cost
Unknown
Final Cleanup Action
Jan 2015
Contaminated Areas
Groundwater: Medium Risk
Contaminants: Chlorobenzene 20000.0 ppb Arsenic (cancer) 39200.0 ppb Barium and compounds 135000.0 ppb Manganese and compounds 682000.0 ppb
Soil: Low Risk
Contaminants: DDE,4,4- 0.07 ppb Arsenic (noncancer) 6.3 ppb Vanadium 17.8 ppb Manganese and compounds 140.0 ppb
Site ID: SITE 00058
DAHLGREN NSWC
Landfill
Cost
Unknown
Final Cleanup Action
Jul 2000
Contaminated Areas
Surface Water (Human): High Risk
Contaminants: Methylene chloride 4000.0 ppb Carbon disulfide 13000.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 26000.0 ppb Mercury 3800000.0 ppb Lead 9600000.0 ppb Copper and compounds 21800000.0 ppb Zinc 96200000.0 ppb Barium and compounds 110000000.0 ppb
Groundwater: Medium Risk
Contaminants: Beryllium and compounds 2500.0 ppb Cadmium and compounds 3800.0 ppb Dichlorobenzene, 1,4- 4000.0 ppb Chlorobenzene 20000.0 ppb Vanadium 27400.0 ppb Lead 42300.0 ppb Nickel and compounds 49900.0 ppb Barium and compounds 156000.0 ppb Aluminum 12800000.0 ppb
Soil: Low Risk
Contaminants: Dieldrin 0.04 ppb Benzo[a]pyrene 0.05 ppb Beryllium and compounds 0.44 ppb Lead 3.4 ppb Arsenic (cancer) 6.7 ppb Nickel and compounds 17.2 ppb Vanadium 18.6 ppb Barium and compounds 35.5 ppb Aluminum 8140.0 ppb
Site ID: SITE 00059
DAHLGREN NSWC
Unexploded Munitions and Ordnance Area
Cost
Unknown
Final Cleanup Action
Sep 2002
Contaminated Areas
Soil: High Risk
Contaminants: Mercury 0.75 ppb Nickel and compounds 11.8 ppb TNT 25.0 ppb Antimony and compounds 55.0 ppb Chromium VI and compounds 61.3 ppb Arsenic (cancer) 75.0 ppb Barium and compounds 75.8 ppb Manganese and compounds 125.0 ppb Lead 200.0 ppb Aluminum 31200.0 ppb
Site ID: SITE 00063
DAHLGREN NSWC
Contaminated Ground Water
Cost
Unknown
Final Cleanup Action
Sep 2012
Contaminated Areas
Groundwater: Medium Risk
Contaminants: Arsenic 4200.0 ppb Antimony and compounds 19100.0 ppb Chloroform 1000000.0 ppb
Sediment (Human): Medium Risk
Contaminants: Arsenic 7.7 ppb HMX 58.0 ppb Chromium 202.0 ppb Lead 2460.0 ppb
Soil: Low Risk
Contaminants: Nitrobenzene 0.049 ppb Mercury (Inorganic) 0.052 ppb Arsenic 6.4 ppb Copper and compounds 18.4 ppb Chromium 28.5 ppb Vanadium 36.2 ppb Manganese and compounds 37.1 ppb Aluminum 15200.0 ppb
Site ID: SITE 00064
DAHLGREN NSWC
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Jun 2014
Contaminated Areas
Groundwater: Risk Not Evaluated
Sediment (Fresh): Risk Not Evaluated
Sediment (Human): Risk Not Evaluated
Soil: Risk Not Evaluated
Site ID: SWMU 00010
DAHLGREN NSWC
Spill Site Area
Cost
Unknown
Final Cleanup Action
Dec 1993
Site ID: SWMU 00018
DAHLGREN NSWC
Spill Site Area
Cost
Unknown
Final Cleanup Action
Dec 1993
Site ID: SWMU 00088
DAHLGREN NSWC
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Dec 1993
Site ID: SITE 00038
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
Sep 2005
Contaminated Areas
Soil: Medium Risk
Contaminants: Aldrin 50.0 ppb DDT 50.0 ppb Endrin 50.0 ppb DDD 50.0 ppb
Site ID: SITE 00032
DAHLGREN NSWC
Unexploded Munitions and Ordnance Area
Cost
Unknown
Final Cleanup Action
Sep 2004
Contaminated Areas
Groundwater: Medium Risk
Contaminants: Mercury 2700.0 ppb Nitrotoluene, m- 3300.0 ppb Nitrotoluene, p- 3300.0 ppb Naphthalene 21000.0 ppb Beryllium and compounds 21300.0 ppb Lead 49100.0 ppb Arsenic (cancer) 58800.0 ppb Chromium VI and compounds 80100.0 ppb RDX 127000.0 ppb Cadmium and compounds 259000.0 ppb
Soil: Low Risk
Contaminants: Ethylbenzene 0.06 ppb Acetone 0.08 ppb
Site ID: SITE 00034
DAHLGREN NSWC
Firing Range
Cost
Unknown
Final Cleanup Action
May 1992
Site ID: SITE 00053
DAHLGREN NSWC
Oil/Water Separator
Cost
Unknown
Final Cleanup Action
Dec 1997
Contaminated Areas
Soil: Medium Risk
Contaminants: Arsenic (cancer) 4.0 ppb Lactofen 20.0 ppb Barium and compounds 41.0 ppb Manganese and compounds 160.0 ppb Nickel and compounds 180.0 ppb
Site ID: SITE 00041
DAHLGREN NSWC
Landfill
Cost
Unknown
Final Cleanup Action
Sep 2003
Contaminated Areas
Soil: Low Risk
Contaminants: Toluene 20.0 ppb Xylene (mixed) 20.0 ppb Benzene 20.0 ppb
Site ID: SWMU 00031
DAHLGREN NSWC
Washrack
Cost
Unknown
Final Cleanup Action
Dec 1993
Contaminated Areas
Groundwater: High Risk
Contaminants: Arsenic (cancer) 15000.0 ppb Xylene, p- 17000.0 ppb Xylene, o- 17000.0 ppb Barium and compounds 190000.0 ppb Lead 340000.0 ppb Aluminum 37000000.0 ppb
Soil: Medium Risk
Contaminants: Cadmium and compounds 1.5 ppb Xylene, p- 8.0 ppb Xylene, o- 8.0 ppb Chromium VI and compounds 25.0 ppb Arsenic (noncancer) 41.0 ppb Barium and compounds 49.0 ppb Lead 109.0 ppb Manganese and compounds 130.0 ppb Aluminum 7300.0 ppb
Site ID: SITE 00006
DAHLGREN NSWC
Storage Area
Cost
Unknown
Final Cleanup Action
Sep 2003
This site is under ongoing monitoring until Feb 2013
Contaminated Areas
Sediment (Marine): High Risk
Contaminants: Indeno[1,2,3-cd]pyrene 2.2 ppb Fluoranthene 2.3 ppb Benzo[a]pyrene 2.4 ppb Pyrene 2.7 ppb Chrysene 3.3 ppb Lead 42.9 ppb Copper and compounds 56.3 ppb Chromium VI and compounds 105.0 ppb
Surface Water (Marine): High Risk
Contaminants: Arsenic (III) 9500.0 ppb Chromium VI and compounds 41900.0 ppb Lead 79500.0 ppb
Groundwater: Medium Risk
Contaminants: Selenium 3300.0 ppb Cyanide of sodium 5500.0 ppb Chromium VI and compounds 11000.0 ppb Arsenic 15100.0 ppb Lead 16300.0 ppb Vanadium Sulfate 17100.0 ppb Barium Cyanide 188000.0 ppb
Soil: Low Risk
Contaminants: Benzo[k]fluoranthene 0.36 ppb Benzo(b)fluoranthene 0.52 ppb Fluoranthene 0.59 ppb Pyrene 0.63 ppb
Update (Dec. 5, 2017): We have changed the source of the installation cost data after being notified by the Department of Defense that they erroneously reported their own cost figures on the DERP website. We are now displaying the costs the department says are the most accurate available, from the Pentagon’s DERP database that we received in a FOIA request.
Note: The risk level of a site refers to a relative risk assessment made by the DOD to prioritize the cleanup of sites.
Data: All data comes from the Defense Environmental Restoration Program and the U.S. Army Corps of Engineers, and will be released soon at the ProPublica Data Store. Read our methodology »