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ARMY INSTALLATION ID: CA921350696A00

MILITARY OCEAN TERMINAL CONCORD

concord, California

Cost So Far

$33.2M

Money already spent on the evaluation and cleanup of hazardous sites.

Expected Additional Cost

$46.8M

The estimated amount of money needed for evaluation and cleanup of hazardous sites at this installation.

Completion Date

2020

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

54 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.

10 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: MOTCO-038

PORT CHICAGO MAIN STREET DUMP

Landfill

Cost

$1.45M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Sep 2018

Contaminated Areas

Soil: High Risk

PAHs and metals are evident in samples. The potential for workers and firefighter exists for contact with contaminated soil.

Contaminants: Lead 200.0 mg/kg Naphthalene 253.0 mg/kg

See more details...

Site ID: MOTCO-033

LOST SLOUGH

Contaminated Sediments

Cost

$7.48M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Dec 2015

This site is under ongoing monitoring until Jul 2044

Contaminated Areas

Soil: High Risk

Significant risk to aquatic inertebnrates, fish and black rails from metal contamination in soil, sediment and surface water

Contaminants: Selenium 5.8 mg/kg Cadmium and compounds 38.6 mg/kg Arsenic 528.0 mg/kg Copper Cyanide 894.0 mg/kg Lead 6060.0 mg/kg Zinc Cyanide 10800.0 mg/kg

Surface Water (Marine): High Risk

Contaminants: Phenylethane 0.3 ug/L Arsenic (III) 51.0 ug/L Cadmium 60.0 ug/L Selenium 66.0 ug/L Copper 160.0 ug/L Lead 1000.0 ug/L Zinc 22000.0 ug/L

Sediment (Human): Medium Risk

Contaminants: Cadmium and compounds 38.6 mg/kg Lead 6060.0 mg/kg

See more details...

Site ID: MOTCO-031A

FORMER FERTILIZER PLANT GROUNDWATER

Contaminated Ground Water

Cost

$54K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Dec 2015

Contaminated Areas

Groundwater: High Risk

Groundwater daylighting into surface water. Human contact with surface water in a recreational setting.

Contaminants: Arsenic 9900.0 ug/L

Surface Water (Fresh): High Risk

Contaminated goundwater migating into surface water. Aquatic plants and animals using or living in surface water that has been impacted by arsenic contaminated groundwater.

Contaminants: Arsenic (III) 9900.0 ug/L

See more details...

Site ID: MOTCO-031

FORMER FERTILIZER PLANT

Contaminated Soil Piles

Cost

$54K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Dec 2017

Contaminated Areas

Groundwater: High Risk

Adjacent properties downgradient to IR Site 31 detected high level of metals partyicularly arsenic in groundwater. Although the site has no drinking water wells in the vicinity, groundwater elevation at the site is at depth. In addition, Suisun Bay is located down gradient and approximately 200-300 feet away.

Contaminants: Mercury (Methyl) 0.07 ug/L Benzo(a)Pyrene 1.6 ug/L Benzo(j)Fluoranthene 2.5 ug/L Selenium 19.1 ug/L Arsenic 1230.0 ug/L

Soil: High Risk

Contaminated surface waste and soils are present at point of exposure. Access to the site is restricted. Visitors limited to occassional maintenance, field sampling, and surveillance crews.

Contaminants: Chromium 86.0 mg/kg Mercury (Inorganic) 113.0 mg/kg Arsenic 239.0 mg/kg Lead 11400.0 mg/kg

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Site ID: MOTCO-032

UNIT 7 MOSQUITO ABATEMENT DITCHES

Contaminated Sediments

Cost

$6.97M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Dec 2015

This site is under ongoing monitoring until Jul 2044

Contaminated Areas

Soil: High Risk

High concentration of metals were detected at surface and subsurface soil in along the mosquito ditchess located within the RASS 1 Area. Due to the high concentration of metals in the sediment and the proximity of the surface water such as Sloughs and Nichols Creek, there are evident that ecological receptors has been impacted. Unacceptable risk to fish and aquatic invertebrates.

Contaminants: Mercury (Methyl) 0.87 mg/kg Selenium 9.6 mg/kg Cadmium and compounds 832.0 mg/kg Lead 872.0 mg/kg Copper Cyanide 1560.0 mg/kg Zinc Cyanide 2990.0 mg/kg Arsenic 3260.0 mg/kg

Sediment (Marine): High Risk

High concentration of metals were detected in the sediment. Because the area is conidered habitat to known endangered species, ecologiocal receptors is potentially impacted by the high concentrations of metals.

Contaminants: Mercury 0.87 mg/kg Cadmium 832.0 mg/kg Copper 1560.0 mg/kg Zinc 89300.0 mg/kg

Surface Water (Marine): High Risk

The Mosquito Ditches is transporting sediment and groundwater contamination to the sloughs where it discharges the water to Suisun Bay. Unacceptable risk to fish and aquatic invertebrates, black rail and Salt Harvest Mouse.

Contaminants: Mercury 1.7 ug/L Selenium 14.1 ug/L Cadmium 207.0 ug/L Lead 1330.0 ug/L Arsenic (III) 2970.0 ug/L Copper 7240.0 ug/L

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Site ID: MOTCO-040

FORMER COPPER SMELTER

Contaminated Ground Water

Cost

$7.07M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Sep 2020

Contaminated Areas

Soil: Medium Risk

Primary pathway either injestion for biological receptors.

Contaminants: Lead 6940.0 mg/kg Copper and compounds 9060.0 mg/kg

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Site ID: MOTCO-001A

TIDAL AREA LANDFILL GROUNDWATER

Contaminated Ground Water

Cost

Unknown

Final Cleanup Action

Dec 2015

Contaminated Areas

Groundwater: Low Risk

The groundwater is shallow. Metals have been detected in the groundwater monitoring wells at this site greater than the PRG. GW has evident of interaction with the surface water. No water supply wells are down gradient of the site. Groundwater, due to high total dissolved solids and saltwater intrusion, is not used as a water source. Water from the tidal area is unlikely to have any potential beneficial water supply use.

Contaminants: Antimony and compounds 60.9 ug/L Arsenic 126.8 ug/L

See more details...

Site ID: MOTCO-007-R-01

EXPLOSIVE ORDNANCE DISPLOSAL Q AREA

Open Burn

Cost

Unknown

Final Cleanup Action

Dec 2015

Site ID: MOTCO-008-R-01

PORT CHICAGO TIDAL AREA EXPLOSIONS

Unexploded Munitions and Ordnance Area

Cost

Unknown

Final Cleanup Action

Oct 2016

Site ID: MOTCO-010-R-01

SUISUN BAY IMPACT AREA

Unexploded Munitions and Ordnance Area

Cost

Unknown

Final Cleanup Action

Sep 2016

44 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: MOTCO-014

KINNE BOULEVARD WELLS

Disposal Pit and Dry Well

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-015

LEGACY NAVY SITE SITE 00015

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-016

RED ROCK DISPOSAL AREA

Disposal Pit and Dry Well

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-017

BLDGS. IA-24 AND IA-24A

Disposal Pit and Dry Well

Cost

Unknown

Final Cleanup Action

Sep 2000

This site is under ongoing monitoring until Sep 2005

Site ID: MOTCO-018

LEGACY NAVY SITE SITE 00018

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-019

LEGACY NAVY SITE SITE 00019

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-021

LEGACY NAVY SITE SITE 00021

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-028

LITIGATION AREA MONITORING

Contaminated Sediments

Cost

$9.34M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Feb 1999

This site is under ongoing monitoring until Sep 2044

Site ID: MOTCO-027

BUILDING 1A-20

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2000

This site is under ongoing monitoring until Oct 2004

Site ID: MOTCO-025

K-2 AREA

Contaminated Sediments

Cost

Unknown

Final Cleanup Action

Feb 1999

This site is under ongoing monitoring until Sep 2043

Site ID: MOTCO-026

G-1 AREA

Contaminated Sediments

Cost

Unknown

Final Cleanup Action

Feb 1999

This site is under ongoing monitoring until Sep 2043

Site ID: MOTCO-026A

G-1 AREA GROUNDWATER

Contaminated Ground Water

Cost

Unknown

Final Cleanup Action

Oct 2012

This site is under ongoing monitoring until Oct 2015

Site ID: MOTCO-030

TAYLOR BLVD BRIDGE DISPOSAL SITE

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Dec 2009

Site ID: MOTCO-035

A16 AND E108

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Mar 2007

This site is under ongoing monitoring until Oct 2010

Site ID: MOTCO-036

PORT CHICAGO HIGHWAY SITE

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Sep 2014

Site ID: MOTCO-231

SOUTHERN BOUNDRY ORDNANCE DISPOSAL

Explosive Ordnance Disposal Area

Cost

Unknown

Final Cleanup Action

May 1993

Site ID: MOTCO-232

EASTERN BOUNDRY ORDNANCE DISPOSAL

Explosive Ordnance Disposal Area

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-241

PISTOL RANGE

Pistol Range

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-008

RYER ISLAND

Unexploded Munitions and Ordnance Area

Cost

$19K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Sep 2000

Site ID: MOTCO-255

BUILDING 6LC98

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-256

BUILDING 174 ELECTRIC SUBSTATION

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-258

SERVICE STATION

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-259

BUILDINGS A-3A AND E-111

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Sep 2001

This site is under ongoing monitoring until Mar 2007

Site ID: [email protected]

[email protected] IR SITES

Site Never Existed

Cost

Unknown

Final Cleanup Action

Mar 2012

Site ID: MOTCO-037

TT-21 A, B AND C

Underground Storage Tanks

Cost

$195K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Jan 2009

This site is under ongoing monitoring until Mar 2015

Site ID: MOTCO-039

FORMER DRY CLEANING FACILITY @E103

Contaminated Ground Water

Cost

Unknown

Final Cleanup Action

Dec 2013

Site ID: MOTCO-001

TIDAL AREA LANDFILL

Landfill

Cost

$20.8M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Oct 2012

This site is under ongoing monitoring until Sep 2045

Site ID: MOTCO-004

ALLIED CHEMICAL SITE A

Contaminated Sediments

Cost

Unknown

Final Cleanup Action

Apr 1999

This site is under ongoing monitoring until Sep 2043

Site ID: MOTCO-009

FROID AND TAYLOR ROADS

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Sep 2011

Site ID: MOTCO-257

Q AREA BUILDING 350

Underground Storage Tanks

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-034

NICHOLS CREEK AND EROSIONAL AREAS

Surface Runoff

Cost

Unknown

Final Cleanup Action

Nov 2008

Site ID: MOTCO-020

LEGACY NAVY SITE SITE 00020

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-254

UNOCAL EASEMENT SITE

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-007

LEGACY NAVY SITE SITE 00007

Building Demolition/Debris Removal

Cost

$19K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Sep 2000

Site ID: MOTCO-246

BUILDING IA-41

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-242

AIRCRAFT RANGE

Firing Range

Cost

Unknown

Final Cleanup Action

Sep 2000

Site ID: MOTCO-001-R-01

UNEXPLODED ORDNANCE 00001

Small Arms Range

Cost

Unknown

Final Cleanup Action

Sep 2004

Site ID: MOTCO-002

R AREA

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Jan 2012

This site is under ongoing monitoring until Sep 2043

Site ID: MOTCO-003

KILN SITE (LITIGATION AREA)

Contaminated Soil Piles

Cost

Unknown

Final Cleanup Action

May 1999

This site is under ongoing monitoring until Sep 2043

Site ID: MOTCO-005

ALLIED CHEMICAL SITE B

Contaminated Sediments

Cost

Unknown

Final Cleanup Action

Feb 1999

This site is under ongoing monitoring until Sep 2043

Site ID: MOTCO-006

COKE PILE SITE

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Jan 1999

This site is under ongoing monitoring until Sep 2043

Site ID: MOTCO-010

LEGACY NAVY SITE SITE 00010

Surface Disposal Area

Cost

$19K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Sep 2000

Site ID: MOTCO-011

WOOD HOGGER SITE

Spill Site Area

Cost

$226K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Sep 2013

This site is under ongoing monitoring until Sep 2016

Site ID: MOTCO-012

LEGACY NAVY SITE SITE 00012

Unexploded Munitions and Ordnance Area

Cost

Unknown

Final Cleanup Action

Sep 2000

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 »