Cost So Far
$89.1M
Money already spent on the evaluation and cleanup of hazardous sites.
Expected Additional Cost
$39.5M
The estimated amount of money needed for evaluation and cleanup of hazardous sites at this installation.
Expected Completion Date
2057
The date by which the DOD estimates cleanup of all sites will be complete. Long term monitoring may continue after this date.
86 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: see more » annual written certification of compliance with lucs groundwater use restricted. « 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 00074
SEAL BEACH NWS
Contaminated Ground Water
Cost
$16.6M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Jun 2020
Contaminated Areas
Soil: High Risk
Contaminants: Antimony and compounds 5600.0 ppb Lead 157000.0 ppb
Site ID: UXO 000006
SEAL BEACH NWS
Explosive Ordnance Disposal Area
Cost
$1.28M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Jun 2018
This site is under ongoing monitoring until Sep 2030
Contaminated Areas
Soil: Medium Risk
Contaminants: Perchlorate 0.083 ppb Mercury and compounds 0.23 ppb Cadmium and compounds 0.43 ppb Beryllium and compounds 0.98 ppb Selenium 1.2 ppb Cobalt 16.0 ppb Arsenic 16.2 ppb Nickel (Soluble Salts) 24.8 ppb Chromium 32.9 ppb Copper and compounds 38.3 ppb Vanadium 71.4 ppb Barium 160.0 ppb Zinc 176.0 ppb Lead 197.0 ppb Manganese and compounds 825.0 ppb Aluminum 25300.0 ppb Iron 34300.0 ppb
Site ID: UXO 00001
SEAL BEACH NWS
Explosive Ordnance Disposal Area
Cost
$9.66M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Sep 2022
This site is under ongoing monitoring until Sep 2037
Contaminated Areas
Sediment (Fresh): Medium Risk
Contaminants: Mercury 0.71 ppb Selenium 0.87 ppb Cadmium and compounds 1.5 ppb Arsenic 9.0 ppb Cobalt 14.2 ppb Nickel (Soluble Salts) 24.1 ppb Chromium 40.9 ppb Copper and compounds 44.0 ppb Zinc 208.0 ppb Barium 307.0 ppb Lead 957.0 ppb Manganese and compounds 1050.0 ppb Total Kjeldahl Nitrogen 1810.0 ppb Aluminum 27700.0 ppb Iron 31800.0 ppb
Soil: Medium Risk
Contaminants: Perchlorate 0.0032 ppb Mercury and compounds 0.057 ppb Selenium 0.89 ppb Beryllium and compounds 0.9 ppb Silver and compounds 1.7 ppb Arsenic 7.2 ppb Cadmium and compounds 8.6 ppb Cobalt 14.1 ppb Nitrate 18.4 ppb Nickel (Soluble Salts) 23.6 ppb Chromium 31.3 ppb Vanadium 63.8 ppb Lead 81.9 ppb Barium 158.0 ppb Copper and compounds 224.0 ppb Manganese and compounds 732.0 ppb Zinc 1620.0 ppb Aluminum 24900.0 ppb Iron 30200.0 ppb
Surface Water (Fresh): Low Risk
Contaminants: Barium 14200.0 ppb Zinc 43400.0 ppb
Site ID: SITE 00047
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Nov 1996
Contaminated Areas
Soil: Low Risk
Contaminants: Diethyl phthalate 0.01 ppb Butyl benzyl phthalate 0.01 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.04 ppb Silver and compounds 0.86 ppb Barium and compounds 44.0 ppb
Site ID: SITE 00048
SEAL BEACH NWS
Spill Site Area
Cost
Unknown
Final Cleanup Action
Nov 1996
Site ID: SITE 00070
SEAL BEACH NWS
Spill Site Area
Cost
$8.56M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Mar 2007
This site is under ongoing monitoring until Nov 2066
Contaminated Areas
Groundwater: High Risk
Contaminants: Mercury and compounds (inorganic) 770.0 ppb Diethyl phthalate 830.0 ppb Beryllium and compounds 4000.0 ppb Thallium 6600.0 ppb Lead 41500.0 ppb PCE 43000.0 ppb Antimony and compounds 52200.0 ppb 1,2-Dichloroethylene (mixture) 88000.0 ppb Arsenic (cancer) 91600.0 ppb 1,2-Dichloroethylene (trans) 94000.0 ppb Vinyl chloride 137000.0 ppb Nickel and compounds 218000.0 ppb Copper and compounds 219000.0 ppb Chromium VI and compounds 239000.0 ppb 1,1-Dichloroethylene 299000.0 ppb Chloroform 440000.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 680000.0 ppb Zinc 692000.0 ppb Vanadium 855000.0 ppb 1,2-Dichloroethylene(cis) 1000000.0 ppb Barium and compounds 1420000.0 ppb Manganese and compounds 10100000.0 ppb Aluminum 169000000.0 ppb Trichloroethylene (TCE) 240000000.0 ppb Iron 273000000.0 ppb
Soil: Medium Risk
Contaminants: DDD,4,4- 0.03 ppb Benz(a)anthracene 0.07 ppb Phenanthrene 0.08 ppb Trichloroethylene (TCE) 0.09 ppb Dibutyl phthalate 0.1 ppb Butyl benzyl phthalate 0.11 ppb Benzo[a]pyrene 0.17 ppb Pyrene 0.19 ppb Benzo[b]fluoranthene 0.19 ppb Indeno[1,2,3-cd]pyrene 0.22 ppb Benzo[k]fluoranthene 0.22 ppb Fluoranthene 0.26 ppb Chrysene 0.32 ppb DDE 0.33 ppb Thallium 1.4 ppb Antimony and compounds 1.7 ppb Selenium 1.7 ppb Cadmium and compounds 3.6 ppb Silver and compounds 3.7 ppb Nickel and compounds 53.7 ppb Vanadium 87.5 ppb Chromium VI and compounds 111.0 ppb Copper and compounds 114.0 ppb Barium and compounds 147.0 ppb Lead 228.0 ppb Zinc 1570.0 ppb Iron 44300.0 ppb
80 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 00001
SEAL BEACH NWS
Surface Impoundment/Lagoon
Cost
Unknown
Final Cleanup Action
Aug 2001
Contaminated Areas
Soil: High Risk
Contaminants: Endrin 0.02 ppb Methoxychlor 0.02 ppb Endosulfan 0.04 ppb Dieldrin 0.1 ppb DDD 0.1 ppb DDT 0.14 ppb DDE 0.26 ppb Mercury and compounds (inorganic) 0.83 ppb Cyanide (free) 1.8 ppb Silver and compounds 2.0 ppb Thallium carbonate 2.2 ppb Polychlorinated biphenyls (PCBs) 2.3 ppb Beryllium and compounds 2.6 ppb Molybdenum 3.0 ppb Selenium 3.3 ppb Cadmium and compounds 15.2 ppb Antimony and compounds 19.3 ppb Vanadium 88.1 ppb Arsenic (cancer endpoint) 105.0 ppb Barium and compounds 324.0 ppb Nickel and compounds 449.0 ppb Nitrate 670.0 ppb Lead 899.0 ppb Zinc 4520.0 ppb Copper and compounds 6080.0 ppb Chromium (total) 6600.0 ppb Aluminum 60600.0 ppb
Groundwater: Low Risk
Contaminants: DDD 40.0 ppb HCH (gamma) Lindane 50.0 ppb Benzene 100.0 ppb Methylene chloride 400.0 ppb Butyl benzyl phthalate 2000.0 ppb Ethoxyethanol, 2- 6000.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 9000.0 ppb Lead 10000.0 ppb Silver and compounds 36400.0 ppb Nickel and compounds 36500.0 ppb Selenium 65800.0 ppb Barium and compounds 199000.0 ppb Antimony and compounds 593000.0 ppb Aluminum 1100000.0 ppb Chloride 20000000000.0 ppb
Site ID: SITE 00002
SEAL BEACH NWS
Surface Impoundment/Lagoon
Cost
Unknown
Final Cleanup Action
Jun 1998
Contaminated Areas
Soil: Low Risk
Contaminants: Nitrite 28.6 ppb
Site ID: SITE 00004
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 2004
Contaminated Areas
Soil: High Risk
Contaminants: DDT 1.28 ppb Lead 1432.33 ppb
Site ID: SITE 00005
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Feb 2005
This site is under ongoing monitoring until Feb 2008
Contaminated Areas
Groundwater: High Risk
Contaminants: Methylphenol, 4- 700.0 ppb Diethyl phthalate 3000.0 ppb Selenium 6700.0 ppb Copper and compounds 11800.0 ppb Nickel and compounds 22800.0 ppb Thallium 25300.0 ppb Vanadium 32200.000000000004 ppb Arsenic (cancer endpoint) 50900.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 66000.0 ppb Antimony and compounds 103000.0 ppb Lead 166000.0 ppb Barium and compounds 1590000.0 ppb
Sediment (Marine): High Risk
Contaminants: Silver and compounds 0.94 ppb Cadmium and compounds 4.2 ppb Antimony and compounds 4.7 ppb Arsenic (cancer) 20.5 ppb Nickel and compounds 108.0 ppb Lead 210.0 ppb Barium and compounds 217.0 ppb Zinc 1640.0 ppb
Soil: Medium Risk
Contaminants: Silver and compounds 0.94 ppb Cadmium and compounds 4.2 ppb Antimony and compounds 4.7 ppb Arsenic (cancer endpoint) 20.5 ppb Nickel and compounds 108.0 ppb Lead 210.0 ppb Barium and compounds 217.0 ppb Zinc 1640.0 ppb
Site ID: SITE 00009
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Jun 1999
Contaminated Areas
Soil: Medium Risk
Contaminants: Chromium (III) 485.0 ppb Lead 504.0 ppb
Site ID: SITE 00010
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Nov 1999
Contaminated Areas
Surface Water (Human): Medium Risk
Contaminants: Mercury and compounds (inorganic) 7000.0 ppb Thallium carbonate 11000.0 ppb Silver and compounds 19000.0 ppb Arsenic (cancer endpoint) 26000.0 ppb Lead 34000.0 ppb Copper and compounds 34000.0 ppb Antimony and compounds 47000.0 ppb Nickel and compounds 120000.0 ppb Zinc 140000.0 ppb Fluoride 5900000.0 ppb Chloride 25000000000.0 ppb
Sediment (Marine): Low Risk
Contaminants: Silver and compounds 2.7 ppb Copper and compounds 54.0 ppb Lead 92.0 ppb Zinc 180.0 ppb
Site ID: SITE 00011
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Sep 1999
Site ID: SITE 00012
SEAL BEACH NWS
Explosive Ordnance Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 2001
Contaminated Areas
Groundwater: High Risk
Contaminants: DDT 190.0 ppb Benzene 200.0 ppb Xylene (mixed) 300.0 ppb DDE 320.0 ppb DDD 330.0 ppb Toluene 600.0 ppb Carbon disulfide 2000.0 ppb Aldrin 2450.0 ppb Chloroform 5000.0 ppb Thallium carbonate 37000.0 ppb Acetone 39000.0 ppb Arsenic (cancer endpoint) 48900.0 ppb Antimony and compounds 90100.0 ppb Barium and compounds 727000.0 ppb Zinc 732000.0 ppb
Site ID: SITE 00013
SEAL BEACH NWS
Spill Site Area
Cost
Unknown
Final Cleanup Action
Sep 2001
Contaminated Areas
Groundwater: Low Risk
Contaminants: Mercury and compounds (inorganic) 240.0 ppb Thallium carbonate 900.0 ppb Beryllium and compounds 5700.0 ppb Lead 22000.0 ppb Selenium 39500.0 ppb Copper and compounds 45000.0 ppb Antimony and compounds 61500.0 ppb Nickel and compounds 72300.0 ppb Barium and compounds 101000.0 ppb Zinc 163000.0 ppb Vanadium 207000.0 ppb Aluminum 37400000.0 ppb
Site ID: SITE 00014
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Jul 2005
Contaminated Areas
Groundwater: High Risk
Contaminants: Dichloroethane, 1,2- (EDC) 69000.0 ppb o-Xylene 1800000.0 ppb Ethyl benzene 2000000.0 ppb Toluene 4000000.0 ppb p-Methyltoluene 6000000.0 ppb Benzene 27600000.0 ppb
Site ID: SITE 00015
SEAL BEACH NWS
Spill Site Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SITE 00016
SEAL BEACH NWS
Burn Area
Cost
Unknown
Final Cleanup Action
Sep 2001
Contaminated Areas
Groundwater: Medium Risk
Contaminants: Antimony and compounds 78700.0 ppb
Site ID: SITE 00017
SEAL BEACH NWS
Spill Site Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Contaminated Areas
Soil: Low Risk
Contaminants: Mercury 1.0 ppb
Site ID: SITE 00021
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 1998
Contaminated Areas
Soil: Low Risk
Contaminants: Thallium carbonate 0.33 ppb Mercury and compounds (inorganic) 1.6 ppb Cadmium and compounds 4.0 ppb Copper and compounds 64.3 ppb Lead 91.2 ppb Barium and compounds 169.0 ppb Zinc 209.0 ppb
Site ID: SITE 00022
SEAL BEACH NWS
Surface Impoundment/Lagoon
Cost
Unknown
Final Cleanup Action
Sep 1998
Contaminated Areas
Sediment (Marine): High Risk
Contaminants: Toluene 0.06 ppb Chlorobenzene 0.07 ppb Methylene chloride 0.09 ppb Benzyl alcohol 0.14 ppb Nitroso di-n-propylamine, N- 0.19 ppb Benzoic acid 0.41 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.5 ppb Acetone 1.1 ppb Mercury and compounds (inorganic) 2.4 ppb Nickel and compounds 52.0 ppb Arsenic (cancer endpoint) 55.0 ppb Vanadium 183.0 ppb
Site ID: SITE 00023
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 1998
Site ID: SITE 00024
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Contaminated Areas
Soil: Low Risk
Contaminants: Lead 48.9 ppb Fluoride 122.0 ppb
Site ID: SITE 00025
SEAL BEACH NWS
Fire/Crash Training Area
Cost
Unknown
Final Cleanup Action
Sep 2001
Contaminated Areas
Soil: Low Risk
Contaminants: Toluene 0.02 ppb
Site ID: SITE 00035
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Mar 1998
Site ID: SITE 00039
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Mar 1996
Contaminated Areas
Groundwater: Low Risk
Contaminants: Xylene (mixed) 900.0 ppb Ethylbenzene 4000.0 ppb
Site ID: SITE 00041
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SITE 00042
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Mar 2007
Contaminated Areas
Soil: High Risk
Contaminants: Copper Cyanide 172.0 ppb
Groundwater: Medium Risk
Contaminants: Barium and compounds 17600.0 ppb Aluminum 600000.0 ppb
Site ID: SITE 00043
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 1998
Contaminated Areas
Soil: Medium Risk
Contaminants: Tetrachloroethylene (PCE) 32.0 ppb Methylnaphthalene,2 1998.0 ppb Naphthalene 3091.0 ppb
Site ID: SITE 00045
SEAL BEACH NWS
Spill Site Area
Cost
Unknown
Final Cleanup Action
Mar 2007
Contaminated Areas
Groundwater: High Risk
Contaminants: Carbon disulfide 7000.0 ppb Nickel and compounds 52400.0 ppb Antimony and compounds 94400.0 ppb Barium and compounds 176000.0 ppb Zinc 20300000.0 ppb
Soil: Low Risk
Contaminants: Anthracene 0.02 ppb Benzo[b]fluoranthene 0.02 ppb Fluoranthene 0.02 ppb Chrysene 0.02 ppb Phenanthrene 0.02 ppb Butyl benzyl phthalate 0.02 ppb Pyrene 0.03 ppb Benzo[a]pyrene 0.05 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.14 ppb Barium and compounds 193.0 ppb
Site ID: SITE 00049
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Feb 1990
Site ID: SITE 00050
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Feb 1990
Site ID: SITE 00071
SEAL BEACH NWS
Spill Site Area
Cost
Unknown
Final Cleanup Action
Sep 2003
Contaminated Areas
Soil: Low Risk
Contaminants: Pentachlorophenol 2.1 ppb Benzo(a)Pyrene 62.0 ppb Chromium 116.0 ppb Lead 284.0 ppb
Site ID: SITE 00072
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SITE 00073
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 2003
Contaminated Areas
Soil: High Risk
Contaminants: Mercury (Methyl) 0.33 ppb Copper and compounds 94.0 ppb Arsenic 341.0 ppb Lead 1360.0 ppb
Site ID: SITE 00075
SEAL BEACH NWS
Contaminated Ground Water
Cost
Unknown
Final Cleanup Action
Jun 2012
Contaminated Areas
Groundwater: Low Risk
Contaminants: Trichloroethylene (TCE) 25300.0 ppb
Site ID: SWMU 00017
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00022
SEAL BEACH NWS
Surface Impoundment/Lagoon
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00024
SEAL BEACH NWS
Incinerator
Cost
Unknown
Final Cleanup Action
Sep 2003
Contaminated Areas
Soil: High Risk
Contaminants: Mercury 0.56 ppb Selenium 0.62 ppb Arsenic (cancer) 4.9 ppb Nickel and compounds 19.0 ppb Chromium VI and compounds 23.0 ppb Antimony and compounds 24.0 ppb Vanadium 52.0 ppb Barium and compounds 260.0 ppb Cadmium and compounds 526.0 ppb Copper and compounds 1110.0 ppb Zinc 1130.0 ppb Lead 4060.0 ppb
Site ID: SWMU 00043
SEAL BEACH NWS
Oil/Water Separator
Cost
Unknown
Final Cleanup Action
Apr 1998
Contaminated Areas
Groundwater: Medium Risk
Contaminants: Barium and compounds 17600.0 ppb Aluminum 600000.0 ppb
Site ID: SWMU 00048
SEAL BEACH NWS
Waste Treatment Plant
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00051
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Contaminated Areas
Soil: Low Risk
Contaminants: Bis(2-ethylhexyl)phthalate (DEHP) 0.05 ppb Butyl benzyl phthalate 0.05 ppb
Site ID: SWMU 00052
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Contaminated Areas
Soil: Low Risk
Contaminants: Molybdenum 2.3 ppb Selenium 22.6 ppb Copper and compounds 58.2 ppb Thallium carbonate 64.7 ppb Vanadium 87.0 ppb Barium and compounds 154.0 ppb Aluminum 41200.0 ppb
Site ID: SWMU 00053
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Contaminated Areas
Soil: Low Risk
Contaminants: Bis(2-ethylhexyl)phthalate (DEHP) 0.05 ppb Selenium 22.6 ppb Thallium carbonate 32.7 ppb Barium and compounds 188.0 ppb
Site ID: SWMU 00054
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00055
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00065
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00066
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: UST 000001
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Sep 1998
Site ID: UST 000002
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Aug 1998
Site ID: UST 000003
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Jan 1995
Site ID: UST 000004
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Jun 1992
Site ID: UST 000006
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Apr 1996
Site ID: UST 000007
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Jul 2011
Contaminated Areas
Soil: Medium Risk
Contaminants: Benzene, methyl- 34.0 ppb Benzene 43.0 ppb Ethyl benzene 560.0 ppb Dimethylbenzene 920.0 ppb
Site ID: UST 000008
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Sep 2014
Site ID: UXO 00002
SEAL BEACH NWS
Explosive Ordnance Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 2010
Contaminated Areas
Soil: Low Risk
Contaminants: Nitrite 584.0 ppb Nitrate 5150.0 ppb
Site ID: UXO 00003
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 2005
Site ID: UXO 00004
SEAL BEACH NWS
Unexploded Munitions and Ordnance Area
Cost
Unknown
Final Cleanup Action
Sep 2005
Site ID: UXO 00005
SEAL BEACH NWS
Unexploded Munitions and Ordnance Area
Cost
Unknown
Final Cleanup Action
Sep 2005
Site ID: SITE 00019
SEAL BEACH NWS
Disposal Pit and Dry Well
Cost
Unknown
Final Cleanup Action
Aug 2001
Contaminated Areas
Groundwater: High Risk
Contaminants: HCH (gamma) Lindane 20.0 ppb DDD 20.0 ppb Tin and compounds 160.0 ppb Benzene 200.0 ppb Methylene chloride 300.0 ppb Toluene 400.0 ppb Acetone 2000.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 5000.0 ppb Cyanide (free) 6800.0 ppb Mercury and compounds (inorganic) 15000.0 ppb Silver and compounds 23500.0 ppb Lead 23900.0 ppb Selenium 46600.0 ppb Barium and compounds 221000.0 ppb Cadmium and compounds 234000.0 ppb Nickel and compounds 346000.0 ppb Copper and compounds 361000.0 ppb Zinc 1090000.0 ppb Chloride 2600000000.0 ppb
Soil: High Risk
Contaminants: Endosulfan 0.02 ppb DDD 0.03 ppb Dieldrin 0.04 ppb DDE 0.07 ppb Toxaphene 0.19 ppb DDT 0.21 ppb Cyanide (free) 0.57 ppb Polychlorinated biphenyls (PCBs) 1.11 ppb Beryllium and compounds 2.7 ppb Selenium 6.4 ppb Silver and compounds 7.1 ppb Bis(2-ethylhexyl)phthalate (DEHP) 15.0 ppb Cadmium and compounds 21.6 ppb Antimony and compounds 52.3 ppb Arsenic (cancer endpoint) 144.0 ppb Nickel and compounds 180.0 ppb Nitrate 310.0 ppb Barium and compounds 330.0 ppb Lead 505.0 ppb Copper and compounds 3690.0 ppb Zinc 4120.0 ppb
Site ID: SITE 00036
SEAL BEACH NWS
Surface Impoundment/Lagoon
Cost
Unknown
Final Cleanup Action
Sep 1998
Contaminated Areas
Soil: Low Risk
Contaminants: Nitroguanidine 4530.0 ppb
Site ID: SITE 00044
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Mar 2007
Contaminated Areas
Groundwater: High Risk
Contaminants: Chloroform 3000.0 ppb Phenanthrene 3000.0 ppb Carbon disulfide 4000.0 ppb Naphthalene 5000.0 ppb Silver and compounds 10900.0 ppb Lead 15800.0 ppb Antimony and compounds 99400.0 ppb Barium and compounds 181000.0 ppb Nickel and compounds 200000.0 ppb Zinc 21500000.0 ppb
Site ID: SITE 00051
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Feb 1990
Site ID: SITE 00020
SEAL BEACH NWS
Spill Site Area
Cost
Unknown
Final Cleanup Action
Jun 1998
Contaminated Areas
Soil: Risk Not Evaluated
Site ID: SWMU 00057
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Apr 2007
Contaminated Areas
Soil: Medium Risk
Contaminants: Methylene chloride 0.01 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.03 ppb Benzo[b]fluoranthene 0.04 ppb Butyl benzyl phthalate 0.06 ppb Fluoranthene 0.13 ppb Thallium carbonate 20.3 ppb Lead 73.0 ppb Barium and compounds 111.0 ppb Arsenic (cancer) 135.0 ppb Copper and compounds 141.0 ppb
Groundwater: Low Risk
Contaminants: Manganese and compounds 5300000.0 ppb
Site ID: SWMU 00064
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00042
SEAL BEACH NWS
Oil/Water Separator
Cost
Unknown
Final Cleanup Action
Apr 1998
Contaminated Areas
Groundwater: Medium Risk
Contaminants: Barium and compounds 17600.0 ppb Aluminum 600000.0 ppb
Site ID: SWMU 00056
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Jun 2006
Contaminated Areas
Soil: Medium Risk
Contaminants: HCH (alpha) 0.02 ppb DDE 0.02 ppb DDT 0.07 ppb DDD 0.08 ppb Pyrene 0.37 ppb Indeno[1,2,3-cd]pyrene 0.4 ppb Benzo[a]pyrene 0.49 ppb Benzo[b]fluoranthene 1.14 ppb Thallium carbonate 12.7 ppb Arsenic (cancer endpoint) 17.3 ppb Barium and compounds 95.6 ppb Lead 924.7 ppb
Site ID: UST 000005
SEAL BEACH NWS
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Jul 1991
Site ID: SWMU 00069
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Contaminated Areas
Soil: Low Risk
Contaminants: Molybdenum 0.83 ppb Butyl benzyl phthalate 1.5 ppb Selenium 11.8 ppb Thallium carbonate 14.6 ppb Barium and compounds 107.0 ppb
Site ID: SITE 00003
SEAL BEACH NWS
Surface Impoundment/Lagoon
Cost
Unknown
Final Cleanup Action
Jun 1998
Site ID: SITE 00037
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Sep 2001
Contaminated Areas
Soil: Low Risk
Contaminants: Barium and compounds 169.0 ppb Arsenic (noncancer) 355.0 ppb
Site ID: SITE 00038
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 2001
Contaminated Areas
Soil: Medium Risk
Contaminants: Barium and compounds 153.0 ppb Arsenic (cancer endpoint) 250.0 ppb
Site ID: SWMU 00058
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00059
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00060
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00061
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00062
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SWMU 00063
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Aug 1995
Contaminated Areas
Soil: Low Risk
Contaminants: Xylene (mixed) 0.01 ppb Bis(2-ethylhexyl)phthalate (DEHP) 0.03 ppb Butyl benzyl phthalate 0.03 ppb Barium and compounds 31.9 ppb
Site ID: SITE 00007
SEAL BEACH NWS
Landfill
Cost
$1.79M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Jun 2005
This site is under ongoing monitoring until Jun 2046
Contaminated Areas
Groundwater: Medium Risk
Contaminants: HCH (gamma) Lindane 20.0 ppb DDD 20.0 ppb Ethylbenzene 300.0 ppb Xylene (mixed) 500.0 ppb Benzene 700.0 ppb Carbon disulfide 700.0 ppb Dichloroethylene, 1,2- (mixture) 800.0 ppb Vinyl chloride 1000.0 ppb Beryllium and compounds 1800.0 ppb Dichloroethane, 1,1- 2000.0 ppb Naphthalene 2000.0 ppb Phenol 3000.0 ppb Acenaphthene 4000.0 ppb Mercury and compounds (inorganic) 12400.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 14000.0 ppb Chlorobenzene 39000.0 ppb Trichloroethylene (TCE) 39000.0 ppb Trichloroethane, 1,1,2- 40000.0 ppb Toluene 43000.0 ppb Dichloroethylene, 1,1- 46000.0 ppb Lead 48400.0 ppb Selenium 55300.0 ppb Vanadium 78900.0 ppb Arsenic (cancer endpoint) 83600.0 ppb Antimony and compounds 93700.0 ppb Cyanide (free) 96500.0 ppb Copper and compounds 98100.0 ppb Acetone 130000.0 ppb Silver and compounds 252000.0 ppb Nickel and compounds 270000.0 ppb Zinc 932000.0 ppb Barium and compounds 1300000.0 ppb Aluminum 35900000.0 ppb Chloride 56000000000.0 ppb
Soil: Medium Risk
Contaminants: Tetrachloroethylene (PCE) 0.01 ppb Dieldrin 0.01 ppb DDD 0.01 ppb Acetone 0.02 ppb Benzo[b]fluoranthene 0.04 ppb Pyrene 0.05 ppb Benzo[k]fluoranthene 0.06 ppb DDE 0.07 ppb DDT 0.08 ppb Benzo[a]pyrene 0.13 ppb Polychlorinated biphenyls (PCBs) 0.22 ppb Ethylbenzene 0.23 ppb Xylene (mixed) 0.37 ppb Mercury and compounds (inorganic) 0.38 ppb Selenium 0.54 ppb Thallium carbonate 0.69 ppb Cyanide (free) 0.81 ppb Beryllium and compounds 2.6 ppb Bis(2-ethylhexyl)phthalate (DEHP) 2.8 ppb Copper and compounds 208.0 ppb Zinc 262.0 ppb Barium and compounds 365.0 ppb Lead 740.0 ppb Nitrate 1200.0 ppb
Sediment (Marine): Medium Risk
Contaminants: Methylene chloride 0.01 ppb Beryllium and compounds 2.6 ppb Arsenic (cancer endpoint) 8.0 ppb Nickel and compounds 35.6 ppb Nitrate 37.0 ppb Copper and compounds 50.5 ppb Vanadium 84.2 ppb Barium and compounds 118.0 ppb Lead 202.0 ppb Zinc 237.0 ppb Aluminum 36500.0 ppb
Surface Water (Human): Low Risk
Contaminants: Nickel and compounds 104000.0 ppb Zinc 118000.0 ppb
Site ID: SITE 00040
SEAL BEACH NWS
Surface Disposal Area
Cost
$1.88M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Jan 2005
This site is under ongoing monitoring until Mar 2045
Contaminated Areas
Groundwater: High Risk
Contaminants: Mercury and compounds (inorganic) 110.0 ppb Lead 500.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 2000.0 ppb Methylene chloride 7000.0 ppb Toluene 8000.0 ppb Selenium 8700.0 ppb Carbon tetrachloride 9000.0 ppb Chloroform 14000.0 ppb Antimony and compounds 16100.000000000002 ppb Acetone 32000.0 ppb Barium and compounds 41700.0 ppb Trichloroethylene (TCE) 295000.0 ppb Dichloroethylene, 1,2- (mixture) 320000.0 ppb Tetrachloroethylene (PCE) 3940000.0 ppb
Soil: Medium Risk
Contaminants: Methyl ethyl ketone 0.01 ppb Selenium 3.05 ppb Cadmium and compounds 4.14 ppb Antimony-oxide 23.0 ppb Nickel and compounds 33.5 ppb Copper and compounds 47.5 ppb Barium and compounds 76.2 ppb Zinc 225.0 ppb Lead 276.0 ppb Manganese 2980.0 ppb
Site ID: SITE 00006
SEAL BEACH NWS
Explosive Ordnance Disposal Area
Cost
Unknown
Final Cleanup Action
Sep 2004
This site is under ongoing monitoring until Feb 2008
Contaminated Areas
Surface Water (Human): High Risk
Contaminants: Methylphenol, 4- 7000.0 ppb
Groundwater: Low Risk
Contaminants: Mercury and compounds (inorganic) 320.0 ppb Dichloroethane, 1,2- (EDC) 1000.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 1000.0 ppb Methylene chloride 1000.0 ppb Chloroform 45000.0 ppb Silver and compounds 73600.0 ppb Copper and compounds 83600.0 ppb Zinc 150000.0 ppb Selenium 395000.0 ppb Nitrate 498000000.0 ppb
Soil: Low Risk
Contaminants: Benzo[a]pyrene 0.37 ppb
Surface Water (Marine): Low Risk
Contaminants: Methylphenol, 4- 7000.0 ppb
Site ID: SITE 00008
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Aug 1999
Contaminated Areas
Sediment (Marine): High Risk
Contaminants: Diethyl phthalate 0.01 ppb Dinitrophenol, 2,4- 0.02 ppb Methylphenol, 4- 0.03 ppb Benzo[a]pyrene 0.11 ppb Copper and compounds 54.2 ppb Barium and compounds 196.0 ppb Zinc 293.0 ppb Nickel and compounds 449.0 ppb Lead 755.22 ppb
Soil: Medium Risk
Contaminants: Diethyl phthalate 0.01 ppb Dimethylphenol, 2,4- 0.02 ppb Methylphenol, 4- 0.03 ppb Benzo[a]pyrene 0.11 ppb Copper and compounds 54.2 ppb Barium and compounds 196.0 ppb Zinc 293.0 ppb Nickel and compounds 449.0 ppb Lead 755.22 ppb
Groundwater: Low Risk
Contaminants: Chloroform 2000.0 ppb Thallium 2600.0 ppb Methylene chloride 3000.0 ppb Selenium 8100.0 ppb Dichloroethane, 1,2- (EDC) 17000.0 ppb Iron 54800.0 ppb Barium and compounds 75300.0 ppb Manganese 1460000.0 ppb
Site ID: SITE 00018
SEAL BEACH NWS
Building Demolition/Debris Removal
Cost
Unknown
Final Cleanup Action
Aug 1995
Site ID: SITE 00046
SEAL BEACH NWS
Surface Disposal Area
Cost
Unknown
Final Cleanup Action
Jun 1998
Contaminated Areas
Soil: Low Risk
Contaminants: Chromium VI and compounds 0.78 ppb Antimony and compounds 3.9 ppb Barium and compounds 171.0 ppb
Site ID: SWMU 00041
SEAL BEACH NWS
Storage Area
Cost
Unknown
Final Cleanup Action
Jun 1998
Contaminated Areas
Groundwater: Medium Risk
Contaminants: Barium and compounds 17600.0 ppb Aluminum 600000.0 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 »