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NAVY INSTALLATION ID: CA917002438200

STOCKTON NCS

stockton, California

Total Cost

$63.1M

Money spent on the evaluation and cleanup of hazardous sites at this installation.

Completion Date

2009

The date the DOD says cleanup of all sites was completed. Long term monitoring may continue after this date.

77 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.

77 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 00002

STOCKTON NCS

Disposal Pit and Dry Well

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Soil: High Risk

Contaminants: Fluoranthene 0.02 ppb DDE,4,4- 0.02 ppb DDT 0.07 ppb Polychlorinated biphenyls (PCBs) 0.26 ppb Beryllium and compounds 0.84 ppb Cadmium and compounds 1.9 ppb Arsenic (noncancer) 10.6 ppb Antimony and compounds 13.7 ppb Lead 19.4 ppb Nickel and compounds 60.4 ppb Copper and compounds 63.3 ppb Vanadium 97.0 ppb Zinc 125.0 ppb Barium and compounds 203.0 ppb Manganese and compounds 472.0 ppb Iron 27700.0 ppb Aluminum 32600.0 ppb

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Site ID: SITE 00042

STOCKTON NCS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Dec 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Mercury 0.12 ppb Beryllium and compounds 1.5 ppb Selenium 1.7 ppb Arsenic (noncancer) 9.6 ppb Lead 11.2 ppb Copper and compounds 52.5 ppb Nickel and compounds 54.7 ppb Vanadium 86.2 ppb Zinc 114.0 ppb Barium and compounds 243.0 ppb Manganese and compounds 510.0 ppb Aluminum 25600.0 ppb Iron 37100.0 ppb

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Site ID: SITE 00043

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Soil: High Risk

Contaminants: DDE,4,4- 0.01 ppb Fluoranthene 0.04 ppb Pyrene 0.05 ppb Mercury 0.05 ppb Silver and compounds 0.45 ppb Beryllium and compounds 0.52 ppb Cadmium and compounds 0.63 ppb Selenium 0.63 ppb Molybdenum 1.3 ppb Antimony and compounds 1.7 ppb Arsenic (cancer) 5.1 ppb Lead 19.8 ppb Copper and compounds 20.6 ppb Nickel and compounds 29.2 ppb Vanadium 32.6 ppb Zinc 74.0 ppb Barium and compounds 131.0 ppb Manganese 442.0 ppb Aluminum 8220.0 ppb Iron 17700.0 ppb

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Site ID: SITE 00008

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Silver and compounds 3300.0 ppb Beryllium and compounds 3800.0 ppb Arsenic (cancer) 25200.0 ppb Lead 42200.0 ppb Nitrite 90000.0 ppb Fluoride 110000.0 ppb Copper and compounds 131000.0 ppb Nickel and compounds 148000.0 ppb Nitrate 170000.0 ppb Vanadium 237000.0 ppb Zinc 266000.0 ppb Barium and compounds 668000.0 ppb Phosphorus (white) 770000.0 ppb Manganese and compounds 24500000.0 ppb Aluminum 74000000.0 ppb Iron 105000000.0 ppb

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Site ID: SITE 00004

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: DDD,4,4- 60.0 ppb DDE,4,4- 70.0 ppb DDT 240.0 ppb Lead 9200.0 ppb 1,1-Dichloroethylene 13000.0 ppb Dichloroethane, 1,1- 16000.0 ppb Selenium 17700.0 ppb Phenol 26000.0 ppb Antimony and compounds 29700.0 ppb Copper and compounds 41800.0 ppb Vinyl chloride 45000.0 ppb Vanadium 62700.0 ppb Zinc 132000.0 ppb Arsenic (cancer) 180000.0 ppb Nickel and compounds 208000.0 ppb Fluoride 300000.0 ppb Nitrate 390000.0 ppb Nitrite 500000.0 ppb Barium and compounds 738000.0 ppb Phosphorus (white) 1600000.0 ppb Manganese and compounds 3400000.0 ppb Trichloroethylene (TCE) 4000000.0 ppb Tetrachloroethylene (PCE) 6400000.0 ppb 1,2-Dichloroethylene (mixture) 12000000.0 ppb Aluminum 18200000.0 ppb Iron 24700000.0 ppb

Soil: Low Risk

Contaminants: DDD,4,4- 0.01 ppb DDE,4,4- 0.03 ppb DDT 0.13 ppb

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Site ID: SITE 00006

STOCKTON NCS

Storm Drain

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Groundwater: Low Risk

Contaminants: Phenol 1000.0 ppb Chloroform 1000.0 ppb Beryllium and compounds 1900.0 ppb Silver and compounds 2100.0 ppb Antimony and compounds 28900.0 ppb Nitrite 50000.0 ppb Lead 61200.0 ppb Nitrate 140000.0 ppb Nickel and compounds 171000.0 ppb Copper and compounds 189000.0 ppb Vanadium 211000.0 ppb Zinc 253000.0 ppb Barium and compounds 306000.0 ppb Arsenic (cancer) 316000.0 ppb Fluoride 410000.0 ppb Manganese and compounds 2590000.0 ppb Phosphorus (white) 3000000.0 ppb Aluminum 63700000.0 ppb Iron 77100000.0 ppb

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Site ID: SITE 00007

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Lead 1800.0 ppb Vanadium 2800.0 ppb Copper and compounds 18400.0 ppb Arsenic (cancer) 56500.0 ppb Nickel and compounds 104000.0 ppb Fluoride 150000.0 ppb Barium and compounds 240000.0 ppb Zinc 661000.0 ppb Phosphorus (white) 690000.0 ppb Aluminum 1290000.0 ppb Manganese and compounds 3910000.0 ppb Iron 8450000.0 ppb

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Site ID: SITE 00009

STOCKTON NCS

Drainage Ditch

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Toluene 3000.0 ppb Selenium 3300.0 ppb Beryllium and compounds 4100.0 ppb Antimony and compounds 22800.0 ppb Lead 73600.0 ppb Nitrite 80000.0 ppb Arsenic (cancer) 81400.0 ppb Copper and compounds 95200.0 ppb Nitrate 100000.0 ppb Nickel and compounds 177000.0 ppb Fluoride 200000.0 ppb Vanadium 256000.0 ppb Zinc 284000.0 ppb Barium and compounds 410000.0 ppb Phosphorus (white) 1900000.0 ppb Manganese and compounds 2000000.0 ppb Aluminum 53400000.0 ppb Iron 68700000.0 ppb

Soil: Medium Risk

Contaminants: Fluoranthene 0.01 ppb Pyrene 0.02 ppb DDD,4,4- 0.08 ppb DDE,4,4- 0.51 ppb Beryllium and compounds 0.86 ppb DDT 1.3 ppb Cadmium and compounds 1.9 ppb Silver and compounds 2.3 ppb Arsenic (noncancer) 7.6 ppb Antimony and compounds 11.0 ppb Lead 19.8 ppb Nickel and compounds 58.4 ppb Vanadium 102.0 ppb Zinc 166.0 ppb Copper and compounds 214.0 ppb Barium and compounds 246.0 ppb Manganese and compounds 504.0 ppb Aluminum 27400.0 ppb Iron 28600.0 ppb

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Site ID: SITE 00010

STOCKTON NCS

Contaminated Ground Water

Cost

Unknown

Final Cleanup Action

Jun 1995

Contaminated Areas

Groundwater: Medium Risk

Contaminants: Phenol 2000.0 ppb Toluene 6000.0 ppb Methylnaphthalene,2 8000.0 ppb Xylene (mixed) 21000.0 ppb Benzene 110000.0 ppb

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Site ID: SITE 00011

STOCKTON NCS

Above Ground Storage Tank

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Medium Risk

Contaminants: DDE,4,4- 0.01 ppb Mercury 0.13 ppb Beryllium and compounds 1.3 ppb Selenium 1.4 ppb Arsenic (noncancer) 8.8 ppb Lead 27.5 ppb Nickel and compounds 52.1 ppb Copper and compounds 64.3 ppb Vanadium 80.8 ppb Zinc 123.0 ppb Barium and compounds 217.0 ppb Manganese and compounds 679.0 ppb Aluminum 26200.0 ppb Iron 35200.0 ppb

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Site ID: SITE 00012

STOCKTON NCS

Above Ground Storage Tank

Cost

Unknown

Final Cleanup Action

Nov 1995

Contaminated Areas

Soil: Low Risk

Contaminants: DDE,4,4- 0.02 ppb DDT 0.08 ppb Selenium 1.4 ppb Arsenic (noncancer) 11.6 ppb Copper and compounds 32.5 ppb Nickel and compounds 37.9 ppb Lead 39.9 ppb Vanadium 68.0 ppb Zinc 80.8 ppb Barium and compounds 168.0 ppb Manganese and compounds 758.0 ppb Aluminum 16300.0 ppb Iron 22100.0 ppb

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Site ID: SITE 00013

STOCKTON NCS

Surface Runoff

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Soil: Low Risk

Contaminants: DDE,4,4- 0.01 ppb Indeno[1,2,3-cd]pyrene 0.05 ppb Benzo[a]pyrene 0.05 ppb Benzo[b]fluoranthene 0.1 ppb Chrysene 0.11 ppb Dibutyl phthalate 0.11 ppb Benz(a)anthracene 0.16 ppb Mercury 0.24 ppb Fluoranthene 0.27 ppb Pyrene 0.36 ppb Selenium 1.3 ppb Beryllium and compounds 1.5 ppb Antimony and compounds 1.6 ppb Molybdenum 7.1 ppb Arsenic (cancer) 8.9 ppb Lead 20.3 ppb Copper and compounds 51.1 ppb Nickel and compounds 56.2 ppb Zinc 98.2 ppb Vanadium 116.0 ppb Barium and compounds 218.0 ppb Manganese 1240.0 ppb Iron 31800.0 ppb Aluminum 33200.0 ppb

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Site ID: SITE 00014

STOCKTON NCS

Surface Impoundment/Lagoon

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Mercury 0.12 ppb Beryllium and compounds 1.1 ppb Antimony and compounds 1.3 ppb Silver and compounds 1.9 ppb Arsenic (cancer) 8.3 ppb Lead 10.9 ppb Copper and compounds 33.7 ppb Nickel and compounds 44.5 ppb Zinc 58.9 ppb Vanadium 69.8 ppb Barium and compounds 194.0 ppb Manganese 378.0 ppb Aluminum 18900.0 ppb Iron 26100.0 ppb

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Site ID: SITE 00016

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Soil: High Risk

Contaminants: Chlordane, alpha- (2) 0.01 ppb Benzo[a]pyrene 0.05 ppb Fluoranthene 0.06 ppb Benz(a)anthracene 0.06 ppb Pyrene 0.07 ppb Chrysene 0.08 ppb Benzo[b]fluoranthene 0.1 ppb 4-Chloroaniline 0.21 ppb Cadmium and compounds 1.0 ppb Beryllium and compounds 1.3 ppb Selenium 1.8 ppb DDD,4,4- 2.7 ppb DDE,4,4- 2.8 ppb Mercury 4.1 ppb Molybdenum 5.3 ppb Antimony and compounds 6.4 ppb Silver and compounds 26.7 ppb Nickel and compounds 47.6 ppb Lead 75.3 ppb Vanadium 79.2 ppb Arsenic (cancer) 86.6 ppb Zinc 142.0 ppb Barium and compounds 326.0 ppb Copper and compounds 342.0 ppb Manganese 621.0 ppb Aluminum 23500.0 ppb Iron 31400.0 ppb

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Site ID: SITE 00017

STOCKTON NCS

Surface Impoundment/Lagoon

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Beryllium and compounds 1.4 ppb Selenium 2.0 ppb Lead 10.2 ppb Arsenic (noncancer) 15.1 ppb Nickel and compounds 50.4 ppb Copper and compounds 55.2 ppb Vanadium 95.6 ppb Zinc 103.0 ppb Barium and compounds 298.0 ppb Manganese and compounds 659.0 ppb Aluminum 30200.0 ppb Iron 39100.0 ppb

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Site ID: SITE 00018

STOCKTON NCS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: DDE,4,4- 0.01 ppb Beryllium and compounds 1.3 ppb Selenium 2.2 ppb Arsenic (noncancer) 12.0 ppb Lead 12.9 ppb Copper and compounds 41.4 ppb Nickel and compounds 49.2 ppb Vanadium 90.0 ppb Zinc 105.0 ppb Barium and compounds 215.0 ppb Manganese and compounds 610.0 ppb Aluminum 18700.0 ppb Iron 29000.0 ppb

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Site ID: SITE 00020

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Soil: Low Risk

Contaminants: Mercury 0.1 ppb Methylnaphthalene,2 0.39 ppb Antimony and compounds 1.0 ppb Cadmium and compounds 1.0 ppb Silver and compounds 1.5 ppb Beryllium and compounds 1.5 ppb Selenium 2.1 ppb Molybdenum 7.4 ppb Lead 11.0 ppb Arsenic (cancer) 12.9 ppb Copper and compounds 54.2 ppb Nickel and compounds 64.3 ppb Zinc 66.9 ppb Vanadium 104.0 ppb Barium and compounds 207.0 ppb Manganese 344.0 ppb Iron 24600.0 ppb Aluminum 31600.0 ppb

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Site ID: SITE 00021

STOCKTON NCS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Arsenic (noncancer) 8.1 ppb Lead 28.6 ppb Nickel and compounds 30.1 ppb Vanadium 36.9 ppb Copper and compounds 93.6 ppb Barium and compounds 133.0 ppb Zinc 223.0 ppb Manganese and compounds 400.0 ppb Aluminum 9680.0 ppb Iron 16800.0 ppb

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Site ID: SITE 00022

STOCKTON NCS

Above Ground Storage Tank

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Soil: Low Risk

Contaminants: DDT 0.01 ppb Arsenic (noncancer) 6.7 ppb Lead 13.7 ppb Copper and compounds 35.0 ppb Nickel and compounds 41.7 ppb Zinc 70.3 ppb Vanadium 76.6 ppb Barium and compounds 181.0 ppb Manganese and compounds 443.0 ppb Aluminum 22000.0 ppb Iron 26000.0 ppb

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Site ID: SITE 00023

STOCKTON NCS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Dec 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Chlordane 0.01 ppb DDE,4,4- 0.13 ppb DDD,4,4- 0.26 ppb DDT 0.35 ppb Phenol 0.39 ppb Beryllium and compounds 2.0 ppb Selenium 2.9 ppb Arsenic (noncancer) 14.4 ppb Lead 16.2 ppb Copper and compounds 76.8 ppb Nickel and compounds 80.8 ppb Zinc 113.0 ppb Vanadium 130.0 ppb Barium and compounds 313.0 ppb Manganese and compounds 983.0 ppb Aluminum 29600.0 ppb Iron 47500.0 ppb

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Site ID: SITE 00024

STOCKTON NCS

Maintenance Yard

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Groundwater: Low Risk

Contaminants: Lead 2900.0 ppb Vanadium 4200.0 ppb Arsenic (cancer) 5000.0 ppb Zinc 11600.0 ppb Copper and compounds 14400.0 ppb Barium and compounds 61100.0 ppb Nickel and compounds 794000.0 ppb

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Site ID: SITE 00025

STOCKTON NCS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Soil: Low Risk

Contaminants: Beryllium and compounds 2.0 ppb Selenium 4.0 ppb Lead 9.3 ppb Arsenic (noncancer) 37.0 ppb Nickel and compounds 53.5 ppb Zinc 84.3 ppb Copper and compounds 144.0 ppb Barium and compounds 157.0 ppb Vanadium 166.0 ppb Manganese and compounds 374.0 ppb Iron 17900.0 ppb Aluminum 22800.0 ppb

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Site ID: SITE 00027

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Mercury 0.48 ppb Beryllium and compounds 1.2 ppb Antimony and compounds 1.6 ppb Selenium 1.6 ppb Silver and compounds 2.0 ppb Arsenic (cancer) 12.5 ppb Lead 25.4 ppb Copper and compounds 56.0 ppb Nickel and compounds 56.3 ppb Vanadium 77.5 ppb Zinc 125.0 ppb Barium and compounds 272.0 ppb Manganese 1070.0 ppb Aluminum 22600.0 ppb Iron 39500.0 ppb

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Site ID: SITE 00028

STOCKTON NCS

Contaminated Fill

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Soil: Low Risk

Contaminants: DDE,4,4- 0.02 ppb Mercury 0.31 ppb Antimony and compounds 1.5 ppb Beryllium and compounds 1.6 ppb Selenium 1.7 ppb Silver and compounds 1.8 ppb Arsenic (cancer) 11.5 ppb Lead 31.2 ppb Nickel and compounds 59.5 ppb Copper and compounds 66.1 ppb Vanadium 87.8 ppb Zinc 143.0 ppb Barium and compounds 281.0 ppb Manganese 1170.0 ppb Aluminum 26700.0 ppb Iron 40800.0 ppb

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Site ID: SITE 00040

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Mar 1996

Site ID: SITE 00030

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Vinyl chloride 2000.0 ppb 1,2-Dichloroethylene (mixture) 3000.0 ppb

Soil: Low Risk

Contaminants: Methyl ethyl ketone 0.02 ppb Cadmium and compounds 1.4 ppb Arsenic (noncancer) 9.1 ppb Lead 18.5 ppb Nickel and compounds 53.7 ppb Copper and compounds 60.7 ppb Vanadium 67.3 ppb Zinc 121.0 ppb Barium and compounds 228.0 ppb Manganese and compounds 544.0 ppb Aluminum 18500.0 ppb Iron 29200.0 ppb

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Site ID: SITE 00029

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Soil: Low Risk

Contaminants: Arsenic (noncancer) 15.1 ppb Nickel and compounds 33.5 ppb Copper and compounds 58.4 ppb Vanadium 67.3 ppb Lead 82.2 ppb Zinc 110.0 ppb Barium and compounds 200.0 ppb Manganese and compounds 576.0 ppb Aluminum 18000.0 ppb Iron 25600.0 ppb

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Site ID: SITE 00031

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Mercury 0.08 ppb Beryllium and compounds 0.63 ppb Cadmium and compounds 0.81 ppb Selenium 1.1 ppb Silver and compounds 1.2 ppb Antimony and compounds 1.6 ppb Molybdenum 2.5 ppb Arsenic (cancer) 5.7 ppb Lead 7.8 ppb Copper and compounds 15.5 ppb Nickel and compounds 28.2 ppb Vanadium 41.4 ppb Zinc 50.4 ppb Barium and compounds 126.0 ppb Manganese 731.0 ppb Aluminum 10700.0 ppb Iron 16900.0 ppb

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Site ID: SITE 00032

STOCKTON NCS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Mar 1998

Site ID: SITE 00034

STOCKTON NCS

Drainage Ditch

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Chlordane 0.01 ppb DDE,4,4- 0.03 ppb Mercury 0.16 ppb Antimony and compounds 0.99 ppb Cadmium and compounds 0.99 ppb Beryllium and compounds 1.0 ppb Selenium 1.8 ppb Arsenic (cancer) 7.7 ppb Copper and compounds 34.3 ppb Lead 37.0 ppb Nickel and compounds 46.2 ppb Vanadium 70.4 ppb Zinc 110.0 ppb Barium and compounds 198.0 ppb Manganese 570.0 ppb Aluminum 19600.0 ppb Iron 31300.0 ppb

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Site ID: SITE 00035

STOCKTON NCS

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Mercury 0.06 ppb Beryllium and compounds 0.37 ppb Arsenic (cancer) 3.2 ppb Lead 4.2 ppb Copper and compounds 10.0 ppb Nickel and compounds 19.2 ppb Vanadium 26.3 ppb Zinc 33.5 ppb Barium and compounds 75.4 ppb Manganese 246.0 ppb Aluminum 6170.0 ppb Iron 12800.0 ppb

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Site ID: SITE 00036

STOCKTON NCS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Mercury 0.25 ppb Antimony and compounds 1.6 ppb Beryllium and compounds 1.6 ppb Silver and compounds 1.9 ppb Selenium 2.2 ppb Molybdenum 3.9 ppb Arsenic (cancer) 26.4 ppb Copper and compounds 62.5 ppb Lead 75.6 ppb Nickel and compounds 80.3 ppb Zinc 94.9 ppb Vanadium 112.0 ppb Barium and compounds 285.0 ppb Manganese 953.0 ppb Aluminum 32700.0 ppb Iron 53400.0 ppb

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Site ID: SITE 00037

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Apr 2006

Contaminated Areas

Groundwater: High Risk

Contaminants: Carbon tetrachloride 1000.0 ppb

Soil: High Risk

Contaminants: DDD,4,4- 0.01 ppb Selenium 1.7 ppb Antimony and compounds 2.7 ppb Arsenic (noncancer) 29.0 ppb Nickel and compounds 41.5 ppb Copper and compounds 48.1 ppb Vanadium 59.1 ppb Lead 99.5 ppb Zinc 145.0 ppb Barium and compounds 162.0 ppb Manganese and compounds 446.0 ppb Aluminum 15700.0 ppb Iron 24600.0 ppb

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Site ID: SITE 00038

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: 1,1-Dichloroethylene 10000.0 ppb Vinyl chloride 260000.0 ppb 1,2-Dichloroethylene (mixture) 390000.0 ppb

Soil: High Risk

Contaminants: DDE,4,4- 0.01 ppb 1,1-Dichloroethylene 0.01 ppb DDT 0.03 ppb Acenaphthene 0.19 ppb Vinyl chloride 0.25 ppb Chrysene 0.38 ppb Benzo[k]fluoranthene 0.75 ppb Indeno[1,2,3-cd]pyrene 0.78 ppb Fluoranthene 1.0 ppb 1,2-Dichloroethylene (mixture) 1.1 ppb Selenium 1.8 ppb Benzo[b]fluoranthene 2.1 ppb Cadmium and compounds 2.6 ppb Phenol 3.2 ppb Silver and compounds 4.6 ppb Antimony and compounds 5.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 6.8 ppb Arsenic (noncancer) 17.2 ppb Nickel and compounds 50.4 ppb Mercury 57.6 ppb Vanadium 71.1 ppb Barium and compounds 303.0 ppb Manganese and compounds 510.0 ppb Lead 815.0 ppb Zinc 2010.0 ppb Copper and compounds 11100.0 ppb Aluminum 17900.0 ppb Iron 31400.0 ppb

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Site ID: SITE 00039

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Jan 2007

This site is under ongoing monitoring until May 2008

Contaminated Areas

Groundwater: High Risk

Contaminants: Mercury and compounds (inorganic) 200.0 ppb Beryllium and compounds 1200.0 ppb 1,1,1-Trichloroethane 2000.0 ppb Chloromethane 2000.0 ppb Cadmium and compounds 8500.0 ppb Carbon disulfide 12000.0 ppb Lead 12300.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 13000.0 ppb Ethyl chloride 14000.0 ppb 1,2-Dichloroethane (EDC) 18000.0 ppb 1,1-Dichloroethylene 18000.0 ppb Trichloroethylene (TCE) 24000.0 ppb Ethylbenzene 30000.0 ppb Benzene 39000.0 ppb Tetrachloroethylene (PCE) 44000.0 ppb Arsenic (cancer) 69100.0 ppb Nitrite 70000.0 ppb Copper and compounds 81800.0 ppb Fluoride 90000.0 ppb Nitrate 90000.0 ppb Vanadium 123000.0 ppb Toluene 140000.0 ppb Nickel and compounds 149000.0 ppb Xylene (mixed) 182000.0 ppb Phosphorus (white) 330000.0 ppb Zinc 781000.0 ppb 1,2-Dichloroethylene (mixture) 860000.0 ppb Barium and compounds 1480000.0 ppb Vinyl chloride 3700000.0 ppb Manganese and compounds 7170000.0 ppb Aluminum 28400000.0 ppb Iron 103000000.0 ppb

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Site ID: SITE 00041

STOCKTON NCS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Soil: Low Risk

Contaminants: Aldrin 0.02 ppb HCH -technical 0.02 ppb DDD,4,4- 0.02 ppb Heptachlor 0.02 ppb DDT 0.03 ppb Dieldrin 0.03 ppb DDE,4,4- 0.03 ppb Endrin 0.04 ppb Beryllium and compounds 2.2 ppb Selenium 4.0 ppb Lead 14.1 ppb Arsenic (noncancer) 37.0 ppb Nickel and compounds 99.9 ppb Copper and compounds 114.0 ppb Zinc 147.0 ppb Vanadium 166.0 ppb Barium and compounds 432.0 ppb Manganese and compounds 789.0 ppb Iron 42400.0 ppb Aluminum 49400.0 ppb

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Site ID: SITE 00045

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 1999

Contaminated Areas

Soil: Low Risk

Contaminants: Mercury 0.09 ppb Antimony and compounds 0.87 ppb Cadmium and compounds 1.0 ppb Silver and compounds 1.5 ppb Beryllium and compounds 1.5 ppb Selenium 1.9 ppb Molybdenum 7.7 ppb Lead 10.1 ppb Arsenic (cancer) 10.9 ppb Copper and compounds 39.3 ppb Nickel and compounds 57.1 ppb Zinc 91.0 ppb Vanadium 99.0 ppb Barium and compounds 223.0 ppb Manganese 449.0 ppb Aluminum 32000.0 ppb Iron 36500.0 ppb

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Site ID: SITE 00046

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Soil: Low Risk

Contaminants: Beryllium and compounds 2.0 ppb Selenium 3.8 ppb Phenol 5.7 ppb 4-Methylphenol 16.0 ppb Arsenic (noncancer) 16.2 ppb Lead 17.0 ppb Nickel and compounds 73.8 ppb Copper and compounds 103.0 ppb Vanadium 151.0 ppb Barium and compounds 545.0 ppb Manganese and compounds 4370.0 ppb Iron 29100.0 ppb Aluminum 30700.0 ppb

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Site ID: SITE 00047

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2005

Contaminated Areas

Groundwater: High Risk

Contaminants: Carbon tetrachloride 6000.0 ppb

Soil: High Risk

Contaminants: Methoxychlor 0.02 ppb DDT 0.08 ppb DDE,4,4- 0.1 ppb Mercury 0.2 ppb Beryllium and compounds 2.0 ppb Selenium 2.1 ppb Antimony and compounds 3.1 ppb Lead 63.2 ppb Copper and compounds 89.0 ppb Nickel and compounds 99.4 ppb Vanadium 123.0 ppb Zinc 220.0 ppb Barium and compounds 406.0 ppb Arsenic (noncancer) 542.0 ppb Manganese and compounds 959.0 ppb Iron 36800.0 ppb Aluminum 49600.0 ppb

Surface Water (Fresh): High Risk

Contaminants: Benzene 100.0 ppb DDD,4,4- 130.0 ppb Toluene 200.0 ppb Copper and compounds 56200.0 ppb Arsenic (cancer) 150000.0 ppb Chloride 650000000.0 ppb

Surface Water (Human): High Risk

Contaminants: Benzene 100.0 ppb DDD,4,4- 130.0 ppb Toluene 200.0 ppb Acetone 6000.0 ppb Copper and compounds 56200.0 ppb Arsenic (cancer) 150000.0 ppb Fluoride 390000.0 ppb Manganese and compounds 1110000.0 ppb

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Site ID: SITE 00048

STOCKTON NCS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Groundwater: Low Risk

Contaminants: Dichloroethane, 1,1- 800.0 ppb

Soil: Low Risk

Contaminants: Aroclor 1254 470.0 ppb

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Site ID: SITE 00049

STOCKTON NCS

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Dec 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Arochlor 1254 7600.0 ppb Trichloroethylene (TCE) 230000.0 ppb cis-1,2-Dichloroethylene 19000000.0 ppb

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Site ID: SITE 00050

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Soil: Medium Risk

Contaminants: Lead 12000.0 ppb

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Site ID: SITE 01001

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Carbon disulfide 200.0 ppb Benzene 2000.0 ppb Xylene (mixed) 3000.0 ppb Bromodichloromethane 3000.0 ppb Toluene 6000.0 ppb Phenol 7000.0 ppb Lead 17900.0 ppb Chloroform 47000.0 ppb Nickel and compounds 92600.0 ppb Copper and compounds 103000.0 ppb Arsenic (cancer) 132000.0 ppb Vanadium 154000.0 ppb Zinc 286000.0 ppb Fluoride 360000.0 ppb Barium and compounds 587000.0 ppb Nitrate 610000.0 ppb Manganese and compounds 1480000.0 ppb Phosphorus (white) 1800000.0 ppb Aluminum 41500000.0 ppb Iron 62300000.0 ppb

Soil: High Risk

Contaminants: Anthracene 0.01 ppb Benz(a)anthracene 0.01 ppb DDD,4,4- 0.01 ppb DDE,4,4- 0.01 ppb Fluoranthene 0.02 ppb Chrysene 0.02 ppb Pyrene 0.03 ppb DDT 0.05 ppb Mercury and compounds (inorganic) 0.14 ppb Beryllium and compounds 0.75 ppb Silver and compounds 1.8 ppb Cadmium and compounds 2.2 ppb Antimony and compounds 7.8 ppb Arsenic (noncancer) 9.7 ppb Lead 33.9 ppb Nickel and compounds 71.1 ppb Vanadium 96.2 ppb Copper and compounds 193.0 ppb Barium and compounds 281.0 ppb Zinc 304.0 ppb Manganese and compounds 1020.0 ppb Aluminum 29400.0 ppb Iron 42000.0 ppb

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Site ID: SITE 01002

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Lead 2100.0 ppb Copper and compounds 2700.0 ppb Selenium 3300.0 ppb Phenol 4000.0 ppb Silver and compounds 5100.0 ppb Nickel and compounds 22700.0 ppb Vanadium 24400.0 ppb Antimony and compounds 30200.0 ppb Arsenic (cancer) 33600.0 ppb Nitrate 100000.0 ppb Nitrite 100000.0 ppb Zinc 153000.0 ppb Fluoride 160000.0 ppb Barium and compounds 330000.0 ppb Phosphorus (white) 1000000.0 ppb Aluminum 7110000.0 ppb Manganese and compounds 11400000.0 ppb Iron 50700000.0 ppb

Soil: High Risk

Contaminants: Xylene (mixed) 0.01 ppb Chlordane 0.01 ppb Dieldrin 0.01 ppb Toluene 0.02 ppb Benzo[a]pyrene 0.02 ppb Endrin 0.02 ppb Benzo[b]fluoranthene 0.03 ppb Chrysene 0.03 ppb DDD,4,4- 0.1 ppb Fluoranthene 0.13 ppb DDE,4,4- 0.13 ppb Pyrene 0.14 ppb DDT 0.23 ppb Mercury and compounds (inorganic) 0.31 ppb Polychlorinated biphenyls (PCBs) 0.52 ppb Beryllium and compounds 0.86 ppb Cadmium and compounds 2.9 ppb Arsenic (noncancer) 9.4 ppb Lead 53.6 ppb Nickel and compounds 68.0 ppb Copper and compounds 93.5 ppb Vanadium 102.0 ppb Zinc 170.0 ppb Barium and compounds 290.0 ppb Manganese and compounds 1020.0 ppb Aluminum 34700.0 ppb Iron 42900.0 ppb

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Site ID: SITE 01003

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Dec 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Beryllium and compounds 740.0 ppb Trichloroethylene (TCE) 1000.0 ppb Phenol 2000.0 ppb Silver and compounds 2400.0 ppb Selenium 4100.0 ppb Lead 4900.0 ppb 1,1-Dichloroethylene 5000.0 ppb Cadmium and compounds 5300.0 ppb Chloroform 6000.0 ppb Methyl isobutyl ketone 10000.0 ppb Copper and compounds 19000.0 ppb Vanadium 27200.0 ppb Antimony and compounds 36000.0 ppb 1,2-Dichloroethylene (mixture) 72000.0 ppb Nitrite 100000.0 ppb Fluoride 130000.0 ppb Vinyl chloride 180000.0 ppb Arsenic (cancer) 228000.0 ppb Nickel and compounds 258000.0 ppb Barium and compounds 909000.0 ppb Phosphorus (white) 1600000.0 ppb Nitrate 1900000.0 ppb Aluminum 6720000.0 ppb Zinc 6950000.0 ppb Manganese and compounds 9750000.0 ppb Iron 51200000.0 ppb

Soil: High Risk

Contaminants: Mercury and compounds (inorganic) 0.3 ppb Beryllium and compounds 0.97 ppb Silver and compounds 2.0 ppb Selenium 2.0 ppb Cadmium and compounds 9.6 ppb Antimony and compounds 20.8 ppb Molybdenum 31.1 ppb Arsenic (noncancer) 32.6 ppb Nickel and compounds 97.7 ppb Vanadium 124.0 ppb Lead 259.0 ppb Barium and compounds 374.0 ppb Copper and compounds 379.0 ppb Zinc 12100.0 ppb Aluminum 41000.0 ppb Iron 41500.0 ppb Manganese and compounds 42000.0 ppb

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Site ID: SITE 00019

STOCKTON NCS

Building Demolition/Debris Removal

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Soil: Medium Risk

Contaminants: Anthracene 0.18 ppb Chrysene 0.22 ppb Dibenz[ah]anthracene 0.23 ppb DDD,4,4- 0.27 ppb Benzoic acid 0.48 ppb Indeno[1,2,3-cd]pyrene 0.71 ppb Benzo[a]pyrene 1.4 ppb Benzo[k]fluoranthene 1.87 ppb Benzo(b)fluoranthene 2.06 ppb Fluoranthene 2.16 ppb Pyrene 2.32 ppb DDT 336.0 ppb DDE,4,4- 359.0 ppb Lead 380.0 ppb Copper and compounds 400.0 ppb

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Site ID: SITE 02006

STOCKTON NCS

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Carbon disulfide 100.0 ppb 4-Methylphenol 1000.0 ppb Lead 6500.0 ppb Methyl isobutyl ketone 13000.0 ppb Phenol 19000.0 ppb Copper and compounds 20800.0 ppb Vanadium 29700.0 ppb Chloroform 45000.0 ppb Zinc 46200.0 ppb Nitrate 70000.0 ppb Fluoride 120000.0 ppb Arsenic (cancer) 151000.0 ppb Barium and compounds 395000.0 ppb Manganese and compounds 1250000.0 ppb Phosphorus (white) 1600000.0 ppb Aluminum 4620000.0 ppb Iron 8140000.0 ppb

Soil: High Risk

Contaminants: Polychlorinated biphenyls (PCBs) 0.01 ppb Methylene chloride 0.01 ppb Mercury and compounds (inorganic) 7.9 ppb Silver and compounds 70.0 ppb Lead 250.0 ppb Arsenic (noncancer) 310.0 ppb Copper and compounds 380.0 ppb

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Site ID: SITE 01005

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Groundwater: High Risk

Contaminants: Radium 226 (radionuclide) 720.0 ppb Phenol 3000.0 ppb Lead 8100.0 ppb Vanadium 18400.0 ppb Copper and compounds 20900.0 ppb Zinc 34900.0 ppb Nitrite 60000.0 ppb Nitrate 100000.0 ppb Fluoride 220000.0 ppb Nickel and compounds 232000.0 ppb Arsenic (cancer) 274000.0 ppb Barium and compounds 338000.0 ppb Manganese and compounds 3060000.0 ppb Phosphorus (white) 3100000.0 ppb Aluminum 4100000.0 ppb Iron 13800000.0 ppb

Soil: Medium Risk

Contaminants: Chlordane 0.01 ppb Dieldrin 0.01 ppb Benzo[k]fluoranthene 0.04 ppb Methoxychlor 0.04 ppb Benzo[a]pyrene 0.06 ppb Carbazole 0.09 ppb DDD,4,4- 0.11 ppb DDE,4,4- 0.16 ppb Benz(a)anthracene 0.24 ppb Polychlorinated biphenyls (PCBs) 0.29 ppb Mercury and compounds (inorganic) 0.33 ppb DDT 0.42 ppb Chrysene 0.51 ppb Pyrene 0.66 ppb Beryllium and compounds 0.69 ppb Benzo[b]fluoranthene 0.75 ppb Fluoranthene 0.81 ppb Cadmium and compounds 10.2 ppb Arsenic (noncancer) 28.5 ppb Silver and compounds 31.3 ppb Antimony and compounds 60.1 ppb Vanadium 89.7 ppb Nickel and compounds 245.0 ppb Copper and compounds 1040.0 ppb Barium and compounds 1300.0 ppb Manganese and compounds 2550.0 ppb Lead 5620.0 ppb Zinc 11100.0 ppb Aluminum 31700.0 ppb Iron 286000.0 ppb

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Site ID: SITE 01007

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Vinyl chloride 1000.0 ppb Lead 1400.0 ppb 1,2-Dichloroethylene (mixture) 6000.0 ppb Copper and compounds 9300.0 ppb Cadmium and compounds 10500.0 ppb Vanadium 12600.0 ppb Antimony and compounds 53700.0 ppb Zinc 95000.0 ppb Arsenic (cancer) 118000.0 ppb Fluoride 160000.0 ppb Selenium 171000.0 ppb Nickel and compounds 409000.0 ppb Nitrate 1100000.0 ppb Barium and compounds 1400000.0 ppb Phosphorus (white) 2500000.0 ppb Aluminum 3820000.0 ppb Manganese and compounds 17200000.0 ppb Iron 51200000.0 ppb

Soil: High Risk

Contaminants: DDT 0.01 ppb Benzo[k]fluoranthene 0.01 ppb Benzo[b]fluoranthene 0.02 ppb Fluoranthene 0.02 ppb Chrysene 0.02 ppb Beryllium and compounds 0.68 ppb Cadmium and compounds 2.3 ppb Arsenic (noncancer) 10.5 ppb Lead 14.5 ppb Antimony and compounds 17.6 ppb Nickel and compounds 48.0 ppb Copper and compounds 75.1 ppb Vanadium 98.8 ppb Zinc 146.0 ppb Barium and compounds 183.0 ppb Manganese and compounds 460.0 ppb Iron 26400.0 ppb Aluminum 28600.0 ppb

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Site ID: SITE 01008

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Mercury and compounds (inorganic) 400.0 ppb Silver and compounds 3400.0 ppb Selenium 6700.0 ppb Beryllium and compounds 10700.0 ppb Arsenic (cancer) 97500.0 ppb Lead 144000.0 ppb Fluoride 260000.0 ppb Nickel and compounds 487000.0 ppb Zinc 649000.0 ppb Copper and compounds 685000.0 ppb Vanadium 697000.0 ppb Phosphorus (white) 860000.0 ppb Barium and compounds 1370000.0 ppb Manganese and compounds 5360000.0 ppb Aluminum 151000000.0 ppb Iron 239000000.0 ppb

Soil: High Risk

Contaminants: Arochlor 1016 0.03 ppb Beryllium and compounds 0.46 ppb Cadmium and compounds 1.4 ppb Arsenic (noncancer) 3.9 ppb Lead 6.1 ppb Antimony and compounds 7.0 ppb Nickel and compounds 40.0 ppb Vanadium 49.4 ppb Copper and compounds 69.2 ppb Zinc 133.0 ppb Barium and compounds 148.0 ppb Manganese and compounds 547.0 ppb Aluminum 13400.0 ppb Iron 20400.0 ppb

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Site ID: SITE 01010

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Selenium 3600.0 ppb Silver and compounds 3800.0 ppb Carbon disulfide 15000.0 ppb Lead 15300.0 ppb Antimony and compounds 37300.0 ppb Nitrite 60000.0 ppb Copper and compounds 106000.0 ppb Fluoride 120000.0 ppb Vanadium 136000.0 ppb Arsenic (cancer) 144000.0 ppb Zinc 161000.0 ppb Phosphorus (white) 340000.0 ppb Nickel and compounds 794000.0 ppb Barium and compounds 1190000.0 ppb Nitrate 2200000.0 ppb Manganese and compounds 19000000.0 ppb Aluminum 36000000.0 ppb Iron 64400000.0 ppb

Soil: High Risk

Contaminants: Ethylbenzene 0.01 ppb Methyl isobutyl ketone 0.01 ppb Toluene 0.02 ppb Xylene (mixed) 0.02 ppb DDT 0.02 ppb Beryllium and compounds 1.2 ppb Cadmium and compounds 1.6 ppb Arsenic (noncancer) 8.1 ppb Lead 9.4 ppb Copper and compounds 72.7 ppb Nickel and compounds 82.5 ppb Zinc 105.0 ppb Vanadium 133.0 ppb Barium and compounds 219.0 ppb Manganese and compounds 671.0 ppb Iron 26900.0 ppb Aluminum 40600.0 ppb

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Site ID: SITE 01011

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Groundwater: High Risk

Contaminants: Xylene (mixed) 300.0 ppb 1,2-Dichloroethylene (mixture) 300.0 ppb Ethylbenzene 500.0 ppb Benzene 500.0 ppb 1,1-Dichloroethylene 2000.0 ppb Vinyl chloride 3000.0 ppb Silver and compounds 3600.0 ppb Beryllium and compounds 3700.0 ppb 1,2-Dichloroethane (EDC) 5000.0 ppb Methyl isobutyl ketone 7000.0 ppb Toluene 15000.0 ppb Lead 29100.0 ppb Antimony and compounds 36600.0 ppb Ethyl chloride 44000.0 ppb Nitrite 50000.0 ppb Dichloroethane, 1,1- 72000.0 ppb Nickel and compounds 121000.0 ppb Arsenic (cancer) 139000.0 ppb Copper and compounds 142000.0 ppb Fluoride 150000.0 ppb Vanadium 293000.0 ppb Zinc 326000.0 ppb Phosphorus (white) 770000.0 ppb Barium and compounds 1100000.0 ppb Manganese and compounds 4360000.0 ppb Nitrate 43500000.0 ppb Aluminum 81000000.0 ppb Iron 114000000.0 ppb

Soil: High Risk

Contaminants: Polychlorinated biphenyls (PCBs) 0.01 ppb Dieldrin 0.08 ppb Chlordane 0.11 ppb Endrin 0.15 ppb Fluoranthene 0.27 ppb Pyrene 0.29 ppb Silver and compounds 0.47 ppb Beryllium and compounds 0.54 ppb Mercury and compounds (inorganic) 0.98 ppb DDE,4,4- 1.0 ppb DDD,4,4- 1.2 ppb DDT 2.8 ppb Cadmium and compounds 2.8 ppb Arsenic (noncancer) 6.9 ppb Antimony and compounds 7.1 ppb Nickel and compounds 47.4 ppb Vanadium 82.9 ppb Copper and compounds 200.0 ppb Zinc 384.0 ppb Lead 469.0 ppb Barium and compounds 482.0 ppb Manganese and compounds 616.0 ppb Iron 22000.0 ppb Aluminum 24400.0 ppb

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Site ID: SITE 01012

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Groundwater: High Risk

Contaminants: Silver and compounds 2300.0 ppb Selenium 2800.0 ppb Lead 6400.0 ppb Antimony and compounds 26400.0 ppb Nickel and compounds 30600.0 ppb Copper and compounds 38600.0 ppb Vanadium 65600.0 ppb Zinc 91400.0 ppb Fluoride 250000.0 ppb Arsenic (cancer) 304000.0 ppb Barium and compounds 328000.0 ppb Phosphorus (white) 700000.0 ppb Manganese and compounds 5090000.0 ppb Aluminum 16700000.0 ppb Iron 29200000.0 ppb

Soil: High Risk

Contaminants: Pyrene 0.01 ppb Fluoranthene 0.01 ppb Methoxychlor 0.01 ppb DDD,4,4- 0.01 ppb DDE,4,4- 0.01 ppb DDT 0.05 ppb Mercury and compounds (inorganic) 0.47 ppb Beryllium and compounds 0.63 ppb Silver and compounds 0.99 ppb Cadmium and compounds 1.6 ppb Antimony and compounds 7.3 ppb Arsenic (noncancer) 7.5 ppb Lead 19.4 ppb Nickel and compounds 56.0 ppb Vanadium 83.9 ppb Zinc 147.0 ppb Copper and compounds 179.0 ppb Barium and compounds 227.0 ppb Manganese and compounds 584.0 ppb Aluminum 25700.0 ppb Iron 33400.0 ppb

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Site ID: SITE 01013

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Apr 2006

Contaminated Areas

Groundwater: High Risk

Contaminants: Lead 1800.0 ppb Silver and compounds 2200.0 ppb Copper and compounds 9400.0 ppb Vanadium 10500.0 ppb Nickel and compounds 15400.0 ppb Zinc 25400.0 ppb Antimony and compounds 27800.0 ppb Arsenic (cancer) 53200.0 ppb Nitrate 60000.0 ppb Fluoride 270000.0 ppb Phosphorus (white) 310000.0 ppb Barium and compounds 658000.0 ppb Manganese and compounds 2070000.0 ppb Aluminum 2680000.0 ppb Iron 3130000.0 ppb

Soil: Medium Risk

Contaminants: Pyrene 0.01 ppb DDE,4,4- 0.03 ppb DDT 0.04 ppb Polychlorinated biphenyls (PCBs) 0.13 ppb Mercury and compounds (inorganic) 0.16 ppb DDD,4,4- 0.2 ppb Beryllium and compounds 0.92 ppb Selenium 0.98 ppb Cadmium and compounds 2.0 ppb Arsenic (noncancer) 6.6 ppb Antimony and compounds 9.6 ppb Nickel and compounds 53.7 ppb Lead 111.0 ppb Vanadium 117.0 ppb Copper and compounds 137.0 ppb Barium and compounds 238.0 ppb Zinc 411.0 ppb Manganese and compounds 842.0 ppb Aluminum 23600.0 ppb Iron 29700.0 ppb

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Site ID: SITE 01014

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Groundwater: High Risk

Contaminants: 1,2-Dichloroethylene (mixture) 400.0 ppb Chlorobenzene 1000.0 ppb Chloromethane 1000.0 ppb Chloroform 2000.0 ppb Vinyl chloride 2000.0 ppb Beryllium and compounds 2600.0 ppb Cadmium and compounds 3000.0 ppb Selenium 14500.0 ppb Antimony and compounds 24800.0 ppb Lead 25100.0 ppb Nitrite 60000.0 ppb Copper and compounds 121000.0 ppb Fluoride 140000.0 ppb Nickel and compounds 178000.0 ppb Arsenic (cancer) 178000.0 ppb Vanadium 181000.0 ppb Zinc 214000.0 ppb Phosphorus (white) 610000.0 ppb Barium and compounds 1980000.0 ppb Manganese and compounds 9090000.0 ppb Aluminum 48800000.0 ppb Iron 79500000.0 ppb

Soil: High Risk

Contaminants: Toluene 0.01 ppb Dieldrin 0.01 ppb Chloromethane 0.01 ppb Endrin 0.02 ppb DDE,4,4- 0.07 ppb DDD,4,4- 0.2 ppb DDT 0.38 ppb Beryllium and compounds 0.54 ppb Mercury and compounds (inorganic) 0.95 ppb Polychlorinated biphenyls (PCBs) 1.1 ppb Cadmium and compounds 2.2 ppb Arsenic (noncancer) 10.6 ppb Nickel and compounds 42.1 ppb Lead 69.3 ppb Vanadium 73.5 ppb Barium and compounds 177.0 ppb Copper and compounds 180.0 ppb Zinc 226.0 ppb Manganese and compounds 625.0 ppb Aluminum 23000.0 ppb Iron 26300.0 ppb

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Site ID: SITE 01015

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Ethylbenzene 1000.0 ppb Toluene 1000.0 ppb Trichloroethylene (TCE) 1000.0 ppb 1,2-Dichloroethane (EDC) 2000.0 ppb Dibromochloromethane 2000.0 ppb Xylene (mixed) 3000.0 ppb 1,1,2-Trichloroethane 3000.0 ppb Bromoform (tribromomethane) 4000.0 ppb 1,1,2,2-Tetrachloroethane 7000.0 ppb Lead 10200.0 ppb Methyl isobutyl ketone 26000.0 ppb Antimony and compounds 33200.0 ppb Vanadium 34800.0 ppb Copper and compounds 35100.0 ppb Acetone 49000.0 ppb Nickel and compounds 49100.0 ppb Methyl ethyl ketone 69000.0 ppb Nitrite 70000.0 ppb Zinc 77200.0 ppb Fluoride 190000.0 ppb Arsenic (cancer) 243000.0 ppb Barium and compounds 348000.0 ppb Nitrate 410000.0 ppb Phosphorus (white) 760000.0 ppb Aluminum 9820000.0 ppb Manganese and compounds 14800000.0 ppb Iron 52200000.0 ppb

Soil: High Risk

Contaminants: DDE,4,4- 0.01 ppb DDT 0.03 ppb DDD,4,4- 0.05 ppb Beryllium and compounds 0.87 ppb Cadmium and compounds 1.7 ppb Arsenic (noncancer) 5.2 ppb Lead 10.3 ppb Antimony and compounds 11.4 ppb Nickel and compounds 55.8 ppb Vanadium 108.0 ppb Copper and compounds 165.0 ppb Zinc 210.0 ppb Barium and compounds 248.0 ppb Manganese and compounds 476.0 ppb Iron 31000.0 ppb Aluminum 36600.0 ppb

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Site ID: SITE 01016

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Groundwater: High Risk

Contaminants: Beryllium and compounds 950.0 ppb Chloroform 3000.0 ppb Silver and compounds 3900.0 ppb Selenium 4200.0 ppb 1,4-Dichlorobenzene 10000.0 ppb Lead 10700.0 ppb Methyl isobutyl ketone 18000.0 ppb Vinyl chloride 24000.0 ppb 1,2-Dichlorobenzene 35000.0 ppb Cadmium and compounds 46300.0 ppb Antimony and compounds 47100.0 ppb Copper and compounds 56800.0 ppb Vanadium 64000.0 ppb Nitrite 90000.0 ppb 1,1-Dichloroethylene 90000.0 ppb Trichloroethylene (TCE) 120000.0 ppb Arsenic (cancer) 322000.0 ppb Nickel and compounds 342000.0 ppb Phosphorus (white) 1300000.0 ppb 1,2-Dichloroethylene (mixture) 1500000.0 ppb Barium and compounds 1730000.0 ppb Fluoride 5800000.0 ppb Nitrate 14300000.0 ppb Zinc 15000000.0 ppb Aluminum 16500000.0 ppb Manganese and compounds 33000000.0 ppb Iron 106000000.0 ppb

Soil: High Risk

Contaminants: Toluene 0.01 ppb Benzene 0.01 ppb DDD,4,4- 0.01 ppb DDE,4,4- 0.01 ppb DDT 0.05 ppb Phenol 0.12 ppb Beryllium and compounds 0.66 ppb Mercury and compounds (inorganic) 7.7 ppb Arsenic (noncancer) 13.1 ppb Cadmium and compounds 19.7 ppb Nickel and compounds 44.9 ppb Vanadium 82.0 ppb Barium and compounds 203.0 ppb Copper and compounds 619.0 ppb Lead 891.0 ppb Zinc 3690.0 ppb Manganese and compounds 7880.0 ppb Aluminum 26500.0 ppb Iron 30300.0 ppb

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Site ID: SITE 02001

STOCKTON NCS

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Silver and compounds 1700.0 ppb Vinyl chloride 2000.0 ppb Selenium 3300.0 ppb Lead 12800.0 ppb 1,2-Dichloroethylene (mixture) 39000.0 ppb Nickel and compounds 51600.0 ppb Copper and compounds 87400.0 ppb Arsenic (cancer) 110000.0 ppb Vanadium 114000.0 ppb Zinc 136000.0 ppb Barium and compounds 228000.0 ppb Fluoride 430000.0 ppb Phosphorus (white) 1900000.0 ppb Manganese and compounds 2080000.0 ppb Aluminum 30700000.0 ppb Iron 46200000.0 ppb

Soil: High Risk

Contaminants: HCH (alpha) 0.01 ppb Polychlorinated biphenyls (PCBs) 0.02 ppb DDE,4,4- 0.03 ppb Chlordane, gamma- 0.06 ppb DDT 0.1 ppb DDD,4,4- 0.14 ppb Silver and compounds 0.55 ppb Endrin 1.1 ppb Mercury and compounds (inorganic) 1.4 ppb Selenium 2.1 ppb Cadmium and compounds 8.7 ppb Arsenic (noncancer) 38.8 ppb Nickel and compounds 80.4 ppb Vanadium 86.9 ppb Barium and compounds 225.0 ppb Lead 369.0 ppb Zinc 424.0 ppb Manganese and compounds 573.0 ppb Copper and compounds 856.0 ppb Iron 24500.0 ppb Aluminum 31100.0 ppb

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Site ID: SITE 02002

STOCKTON NCS

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: 1,2-Dichloroethylene (mixture) 1000.0 ppb Benzene 1000.0 ppb Silver and compounds 2000.0 ppb Ethylbenzene 5000.0 ppb Lead 13500.0 ppb Arsenic (cancer) 46500.0 ppb Copper and compounds 60000.0 ppb Nitrate 64000.0 ppb Nickel and compounds 79900.0 ppb Vanadium 128000.0 ppb Zinc 148000.0 ppb Fluoride 250000.0 ppb Barium and compounds 274000.0 ppb Phosphorus (white) 1000000.0 ppb Manganese and compounds 4740000.0 ppb Aluminum 35900000.0 ppb Iron 48300000.0 ppb

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Site ID: SITE 02003

STOCKTON NCS

Maintenance Yard

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: 1,2-Dichloroethylene (mixture) 200.0 ppb Mercury and compounds (inorganic) 200.0 ppb Trichloroethylene (TCE) 2000.0 ppb Chlorobenzene 3000.0 ppb Benzene 3000.0 ppb 1,1-Dichloroethylene 3000.0 ppb Dichloroethane, 1,1- 4000.0 ppb Silver and compounds 4700.0 ppb Beryllium and compounds 8000.0 ppb Antimony and compounds 42200.0 ppb Nitrite 50000.0 ppb Arsenic (cancer) 82800.0 ppb Lead 187000.0 ppb Copper and compounds 262000.0 ppb Nickel and compounds 330000.0 ppb Phosphorus (white) 460000.0 ppb Fluoride 560000.0 ppb Vanadium 580000.0 ppb Zinc 648000.0 ppb Barium and compounds 2170000.0 ppb Nitrate 5700000.0 ppb Manganese and compounds 13600000.0 ppb Aluminum 182000000.0 ppb Iron 261000000.0 ppb

Soil: High Risk

Contaminants: Polychlorinated biphenyls (PCBs) 0.02 ppb Trichloroethylene (TCE) 0.6 ppb Cadmium and compounds 11.0 ppb Antimony and compounds 230.0 ppb Lead 1100.0 ppb

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Site ID: SITE 02005

STOCKTON NCS

Contaminated Buildings

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Chloroform 3000.0 ppb Silver and compounds 3200.0 ppb Beryllium and compounds 3600.0 ppb Lead 26100.0 ppb Antimony and compounds 28600.0 ppb Arsenic (cancer) 29400.0 ppb Nitrite 60000.0 ppb Copper and compounds 88100.0 ppb Nickel and compounds 102000.0 ppb Fluoride 190000.0 ppb Vanadium 228000.0 ppb Zinc 281000.0 ppb Nitrate 630000.0 ppb Barium and compounds 952000.0 ppb Phosphorus (white) 1400000.0 ppb Manganese and compounds 5750000.0 ppb Aluminum 51900000.0 ppb Iron 101000000.0 ppb

Soil: High Risk

Contaminants: Lead 67.0 ppb

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Site ID: SITE 02007

STOCKTON NCS

Waste Lines

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Soil: Low Risk

Contaminants: DDD,4,4- 0.01 ppb DDE,4,4- 0.01 ppb Chlordane 0.02 ppb DDT 0.26 ppb Beryllium and compounds 1.2 ppb Silver and compounds 2.3 ppb Lead 11.5 ppb Nickel and compounds 52.0 ppb Copper and compounds 69.6 ppb Vanadium 79.6 ppb Zinc 97.3 ppb Barium and compounds 165.0 ppb Arsenic (noncancer) 228.0 ppb Manganese and compounds 642.0 ppb Aluminum 29700.0 ppb Iron 46800.0 ppb

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Site ID: SITE 02008

STOCKTON NCS

Contaminated Buildings

Cost

Unknown

Final Cleanup Action

Mar 2007

Contaminated Areas

Soil: Medium Risk

Contaminants: DDE,4,4- 0.03 ppb DDD,4,4- 0.16 ppb DDT 0.43 ppb Manganese and compounds 687.0 ppb

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Site ID: SITE 02009

STOCKTON NCS

Storm Drain

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Sediment (Fresh): High Risk

Contaminants: Polychlorinated biphenyls (PCBs) 4.2 ppb Lead 220.0 ppb

Sediment (Human): High Risk

Contaminants: Polychlorinated biphenyls (PCBs) 4.2 ppb Lead 220.0 ppb

Surface Water (Human): High Risk

Contaminants: 1,2-Dichloroethane (EDC) 100.0 ppb Dichloroethane, 1,1- 100.0 ppb Tetrachloroethane, 1,1,2,2- 100.0 ppb Trichloroethylene (TCE) 500.0 ppb 1,2-Dichloroethylene (mixture) 10000.0 ppb

Surface Water (Fresh): Low Risk

Contaminants: 1,2-Dichloroethane (EDC) 100.0 ppb Tetrachloroethane, 1,1,2,2- 100.0 ppb Trichloroethylene (TCE) 500.0 ppb 1,2-Dichloroethylene (mixture) 10000.0 ppb

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Site ID: SITE 02010

STOCKTON NCS

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Jan 1999

Contaminated Areas

Soil: Low Risk

Contaminants: Lead 9.2 ppb Copper and compounds 13.0 ppb Nickel and compounds 27.0 ppb Zinc 34.0 ppb

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Site ID: UST 000002

STOCKTON NCS

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Dec 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Benzene 1500.0 ppb Toluene 7600000.0 ppb Methyl tertbutyl ether (MTBE) 150000000.0 ppb

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Site ID: UST 000003

STOCKTON NCS

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: tert-Butyl methyl ether 500.0 ppb Ethyl benzene 2000.0 ppb Benzene 3000.0 ppb

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Site ID: SITE 02004

STOCKTON NCS

Storm Drain

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Soil: High Risk

Contaminants: Polychlorinated biphenyls (PCBs) 0.01 ppb Mercury and compounds (inorganic) 2.6 ppb Lead 1100.0 ppb

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Site ID: UXO 000001

STOCKTON NCS

Unexploded Munitions and Ordnance Area

Cost

Unknown

Final Cleanup Action

Mar 2007

Site ID: SITE 00003

STOCKTON NCS

Fire/Crash Training Area

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Carbon disulfide 200.0 ppb Mercury and compounds (inorganic) 220.0 ppb Bromodichloromethane 1000.0 ppb Methyl ethyl ketone 1000.0 ppb Beryllium and compounds 1500.0 ppb Ethylbenzene 2000.0 ppb Toluene 2000.0 ppb Benzene 2000.0 ppb Silver and compounds 2400.0 ppb Xylene (mixed) 3000.0 ppb Chloroform 9000.0 ppb Antimony and compounds 33300.0 ppb Lead 58300.0 ppb Nitrite 60000.0 ppb Fluoride 130000.0 ppb Arsenic (cancer) 150000.0 ppb Nickel and compounds 197000.0 ppb Copper and compounds 201000.0 ppb Nitrate 240000.0 ppb Vanadium 391000.0 ppb 1,2-Dichloroethylene (mixture) 1000000.0 ppb Zinc 1310000.0 ppb Vinyl chloride 1400000.0 ppb Barium and compounds 1580000.0 ppb Manganese and compounds 5420000.0 ppb Phosphorus (white) 5800000.0 ppb Aluminum 112000000.0 ppb Iron 163000000.0 ppb

Soil: High Risk

Contaminants: 4-Nitrophenol 0.07 ppb 1,2-Dichloroethylene (mixture) 1.0 ppb

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Site ID: SITE 00015

STOCKTON NCS

Drainage Ditch

Cost

Unknown

Final Cleanup Action

Apr 1996

Contaminated Areas

Soil: Medium Risk

Contaminants: Chlordane 0.01 ppb DDE,4,4- 0.02 ppb DDD,4,4- 0.03 ppb Aroclor 0.07 ppb Tetrachloroethylene (PCE) 0.21 ppb Mercury 0.25 ppb Cadmium and compounds 1.0 ppb Beryllium and compounds 1.4 ppb Silver and compounds 1.8 ppb Selenium 2.0 ppb Antimony and compounds 2.9 ppb Molybdenum 7.2 ppb Arsenic (cancer) 22.7 ppb Copper and compounds 41.2 ppb Nickel and compounds 53.7 ppb Lead 56.1 ppb Vanadium 99.2 ppb Zinc 188.0 ppb Barium and compounds 218.0 ppb Manganese 440.0 ppb Aluminum 24100.0 ppb Iron 29000.0 ppb

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Site ID: SITE 00026

STOCKTON NCS

Above Ground Storage Tank

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Low Risk

Contaminants: Lead 3.6 ppb Arsenic (noncancer) 3.8 ppb Nickel and compounds 13.0 ppb Vanadium 21.8 ppb Copper and compounds 23.8 ppb Zinc 37.2 ppb Barium and compounds 47.5 ppb Manganese and compounds 188.0 ppb Aluminum 3890.0 ppb Iron 10100.0 ppb

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Site ID: SITE 00033

STOCKTON NCS

Surface Impoundment/Lagoon

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Sediment (Human): High Risk

Contaminants: Cadmium and compounds 3.1 ppb Selenium 5.8 ppb DDT 26.0 ppb Arsenic (cancer) 27.0 ppb Vanadium 32.6 ppb Antimony and compounds 122.0 ppb Barium and compounds 194.0 ppb Copper and compounds 487.0 ppb Manganese and compounds 753.0 ppb Lead 1150.0 ppb Zinc 3010.0 ppb Aluminum 8890.0 ppb

Sediment (Fresh): Medium Risk

Contaminants: Cadmium and compounds 3.1 ppb DDT 26.0 ppb Arsenic (cancer) 27.0 ppb Antimony and compounds 122.0 ppb Copper and compounds 487.0 ppb Manganese and compounds 753.0 ppb Lead 1150.0 ppb Zinc 3010.0 ppb

Soil: Low Risk

Contaminants: Vanadium 0.06 ppb DDT 0.09 ppb Aluminum 0.12 ppb Selenium 3.0 ppb Cadmium and compounds 9.3 ppb Arsenic (cancer) 26.0 ppb Antimony and compounds 68.8 ppb Manganese and compounds 725.0 ppb Nickel and compounds 764.0 ppb Lead 1080.0 ppb Zinc 2820.0 ppb

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Site ID: SITE 00044

STOCKTON NCS

Storage Area

Cost

Unknown

Final Cleanup Action

Mar 1998

Contaminated Areas

Soil: Medium Risk

Contaminants: DDT 0.01 ppb DDE,4,4- 0.01 ppb Beryllium and compounds 1.3 ppb Antimony and compounds 1.7 ppb Arsenic (noncancer) 8.5 ppb Lead 19.8 ppb Copper and compounds 39.2 ppb Nickel and compounds 48.8 ppb Zinc 94.3 ppb Vanadium 95.0 ppb Barium and compounds 220.0 ppb Manganese and compounds 442.0 ppb Aluminum 32700.0 ppb Iron 38900.0 ppb

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Site ID: SITE 01004

STOCKTON NCS

Landfill

Cost

Unknown

Final Cleanup Action

Sep 2005

Contaminated Areas

Groundwater: High Risk

Contaminants: Beryllium and compounds 740.0 ppb Trichloroethylene (TCE) 1000.0 ppb Phenol 2000.0 ppb Silver and compounds 2400.0 ppb Selenium 4100.0 ppb Lead 4900.0 ppb 1,1-Dichloroethylene 5000.0 ppb Cadmium and compounds 5300.0 ppb Chloroform 6000.0 ppb Methyl isobutyl ketone 10000.0 ppb Copper and compounds 19000.0 ppb Vanadium 27200.0 ppb Antimony and compounds 36000.0 ppb 1,2-Dichloroethylene (mixture) 72000.0 ppb Nitrite 100000.0 ppb Fluoride 130000.0 ppb Vinyl chloride 180000.0 ppb Arsenic (cancer) 228000.0 ppb Nickel and compounds 258000.0 ppb Barium and compounds 909000.0 ppb Phosphorus (white) 1600000.0 ppb Nitrate 1900000.0 ppb Aluminum 6720000.0 ppb Zinc 6950000.0 ppb Manganese and compounds 9750000.0 ppb Iron 51200000.0 ppb

Soil: High Risk

Contaminants: Mercury and compounds (inorganic) 0.3 ppb Beryllium and compounds 0.97 ppb Silver and compounds 2.0 ppb Selenium 2.0 ppb Cadmium and compounds 9.6 ppb Antimony and compounds 20.8 ppb Molybdenum 31.1 ppb Arsenic (noncancer) 32.6 ppb Nickel and compounds 97.7 ppb Vanadium 124.0 ppb Barium and compounds 374.0 ppb Copper and compounds 379.0 ppb Lead 459.0 ppb Zinc 12100.0 ppb Aluminum 41000.0 ppb Iron 41500.0 ppb Manganese and compounds 42000.0 ppb

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Site ID: SITE 01009

STOCKTON NCS

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Soil: High Risk

Contaminants: DDE,4,4- 20.0 ppb DDD,4,4- 43.0 ppb DDT 270.0 ppb

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Site ID: UST 000001

STOCKTON NCS

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Sep 2003

Contaminated Areas

Groundwater: High Risk

Contaminants: Ethylbenzene 15000.0 ppb Xylene (mixed) 93000.0 ppb Toluene 350000.0 ppb Benzene 5300000.0 ppb

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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 »