Concord
Naval Weapons Station
Concord Naval Weapons Station was a military base established in 1942 at the shore of the Sacramento River where it widens into Suisun Bay. The station functioned as a World War II armament storage depot, supplying ships at Port Chicago. Concord NWS continued to support war efforts during the Korean War, the Vietnam War and the Gulf War, processing and shipping thousands of tons of materiel out across the Pacific Ocean.
In 2008, the inland area became a detachment of the Naval Weapons Station Seal Beach. The Tidal Area is now known as Military Ocean Terminal Concord.
Concord Naval Weapons Station was a military base established in 1942 at the shore of the Sacramento River where it widens into Suisun Bay. The station functioned as a World War II armament storage depot, supplying ships at Port Chicago. Concord NWS continued to support war efforts during the Korean War, the Vietnam War and the Gulf War, processing and shipping thousands of tons of materiel out across the Pacific Ocean.
In 2008, the inland area became a detachment of the Naval Weapons Station Seal Beach. The Tidal Area is now known as Military Ocean Terminal Concord.
See below for thousands of pages documenting contamination at Concord.
Former Naval Weapons Station Seal Beach Detachment Concord
Concord Naval Weapons Station Superfund Site
Naval Weapons Station (WPNSTA) Concord (also known as Naval Weapons Station Seal Beach Detachment, Concord) is a 12,800-acre area in north-central Contra Costa County, California. WPNSTA Concord is composed of two geographically separate units, the Inland (5,170 acres) and Tidal (7,630 acres) Areas, and a 1-acre radiography facility in Pittsburgh, California. Aside from typical administrative and support work activities, this facility is a major ammunition trans-shipment port of the West Coast for the Department of Defense (DoD), operated by the U.S. Army. Following immediate actions to protect human health and the environment, site investigations and long-term cleanup are ongoing.
Risks and pathways addressed by the cleanup include health risks from people ingesting or touching contaminants in soil, sediments and groundwater. Groundwater contamination levels are above drinking water Maximum Contaminant Levels (MCLs) and require cleanup action. Site-specific wetlands and endangered species, such as the Salt Marsh Harvest Mouse and the California Capper Rail, are at risk.
View a full list of contaminants of concern for this site.
Want to know more? https://cumulis.epa.gov/supercpad/cursites/csitinfo.cfm?id=0902778
These statistics were generated from a different era. Today, the EPA represents corporate interests and is no longer an advocate for public health.
Naval Weapons Station (WPNSTA) Concord (also known as Naval Weapons Station Seal Beach Detachment, Concord) is a 12,800-acre area in north-central Contra Costa County, California. WPNSTA Concord is composed of two geographically separate units, the Inland (5,170 acres) and Tidal (7,630 acres) Areas, and a 1-acre radiography facility in Pittsburgh, California. Aside from typical administrative and support work activities, this facility is a major ammunition trans-shipment port of the West Coast for the Department of Defense (DoD), operated by the U.S. Army. Following immediate actions to protect human health and the environment, site investigations and long-term cleanup are ongoing.
Risks and pathways addressed by the cleanup include health risks from people ingesting or touching contaminants in soil, sediments and groundwater. Groundwater contamination levels are above drinking water Maximum Contaminant Levels (MCLs) and require cleanup action. Site-specific wetlands and endangered species, such as the Salt Marsh Harvest Mouse and the California Capper Rail, are at risk.
View a full list of contaminants of concern for this site.
Want to know more? https://cumulis.epa.gov/supercpad/cursites/csitinfo.cfm?id=0902778
These statistics were generated from a different era. Today, the EPA represents corporate interests and is no longer an advocate for public health.
Concord is identified as a DOD installation with known or suspected releases of PFOS/PFOA, according to a DOD Report to Congress on Aqueous Film-Forming Foam - Nov. 3, 2017.
No testing results were made public regarding the base, only that it is likely contaminated with the ”forever chemicals.”
Concord is included in the report “Bases and Facilities with Significant Historical U.S. Nuclear Weapons or Naval Nuclear Propulsion Missions - 2002” Radioactive
Compiled by Stephen I. Schwartz, 2002
https://www.brookings.edu/bombs-in-the-backyard/
Concord - Source DOD
Soil Contaminants:
Lead 200.0 mg/kg
Naphthalene 253.0 mg/kg
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 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 Contaminants:
Cadmium and compounds 38.6 mg/kg
Lead 6060.0 mg/kg
Groundwater Contaminants:
Arsenic 9900.0 ug/L
Surface Water - Contaminated groundwater migtating 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
Groundwater: Adjacent properties downgradient to IR Site 31 detected high level of metals particularly 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.
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 Contaminated surface waste and soils are present at point of exposure. Access to the site is restricted. Visitors limited to occasional maintenance, field sampling, and surveillance crews.
Chromium 86.0 mg/kg
Mercury (Inorganic) 113.0 mg/kg
Arsenic 239.0 mg/kg
Lead 11400.0 mg/kg
Contaminated: Soil Sediment Surface Water
This site is under ongoing monitoring until Jul 2044
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.
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 concentration of metals were detected in the sediment. Because the area is considered habitat to known endangered species, ecological receptors is potentially impacted by the high concentrations of metals.
Mercury 0.87 mg/kg
Cadmium 832.0 mg/kg
Copper 1560.0 mg/kg
Zinc 89300.0 mg/kg
Surface Water
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.
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
Soil Contaminants:
Lead 200.0 mg/kg
Naphthalene 253.0 mg/kg
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 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 Contaminants:
Cadmium and compounds 38.6 mg/kg
Lead 6060.0 mg/kg
Groundwater Contaminants:
Arsenic 9900.0 ug/L
Surface Water - Contaminated groundwater migtating 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
Groundwater: Adjacent properties downgradient to IR Site 31 detected high level of metals particularly 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.
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 Contaminated surface waste and soils are present at point of exposure. Access to the site is restricted. Visitors limited to occasional maintenance, field sampling, and surveillance crews.
Chromium 86.0 mg/kg
Mercury (Inorganic) 113.0 mg/kg
Arsenic 239.0 mg/kg
Lead 11400.0 mg/kg
Contaminated: Soil Sediment Surface Water
This site is under ongoing monitoring until Jul 2044
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.
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 concentration of metals were detected in the sediment. Because the area is considered habitat to known endangered species, ecological receptors is potentially impacted by the high concentrations of metals.
Mercury 0.87 mg/kg
Cadmium 832.0 mg/kg
Copper 1560.0 mg/kg
Zinc 89300.0 mg/kg
Surface Water
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.
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
Contra Costa Water District Utility Details Serves: 198,000
https://www.ewg.org/tapwater/system.php?pws=CA0710003
Data available: 2012—2017 Source: Surface water
Contaminants Detected 8 EXCEED EWG HEALTH GUIDELINES 20 Total Contaminants
EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the California State Water Resources Control Board, as well as information from the U.S. EPA Enforcement and Compliance History database (ECHO). For the latest quarter assessed by the U.S. EPA (January 2019 - March 2019), tap water provided by this water utility was in compliance with federal health-based drinking water standards.
Legal does not necessarily equal safe. Getting a passing grade from the federal government does not mean the water meets the latest health guidelines.
Legal limits for contaminants in tap water have not been updated in almost 20 years.
The best way to ensure clean tap water is to keep pollution out of source water in the first place.
https://www.ewg.org/tapwater/system.php?pws=CA0710003
Data available: 2012—2017 Source: Surface water
Contaminants Detected 8 EXCEED EWG HEALTH GUIDELINES 20 Total Contaminants
EWG's drinking water quality report shows results of tests conducted by the water utility and provided to the Environmental Working Group by the California State Water Resources Control Board, as well as information from the U.S. EPA Enforcement and Compliance History database (ECHO). For the latest quarter assessed by the U.S. EPA (January 2019 - March 2019), tap water provided by this water utility was in compliance with federal health-based drinking water standards.
Legal does not necessarily equal safe. Getting a passing grade from the federal government does not mean the water meets the latest health guidelines.
Legal limits for contaminants in tap water have not been updated in almost 20 years.
The best way to ensure clean tap water is to keep pollution out of source water in the first place.
The California Water Board did not test the water of the Contra Costa Water Distric for PFOS/PFOA in 2019.
DoD's Installation Restoration Program (IRP) Sites that have not Achieved Response Complete (RC) January 2018
https://www.denix.osd.mil/derp/home/documents/installation-restoration-program-report-to-congress-january-2018/
Key: DERA - Defense Environmental Restoration Account funds
BRAC - Base Realignment and Closure
MILITARY OCEAN TERMINAL
Army California CONCORD DERA MOTCO-031 FORMER FERTILIZER PLANT 201712 0 1
MILITARY OCEAN TERMINAL FORMER FERTILIZER PLANT
Army California CONCORD DERA MOTCO-031A GROUNDWATER 201712 0 1
MILITARY OCEAN TERMINAL PORT CHICAGO MAIN STREET
Army California CONCORD DERA MOTCO-038 DUMP 202009 0 4
MILITARY OCEAN TERMINAL
Army California CONCORD DERA MOTCO-040 FORMER COPPER SMELTER 202009 0 4
https://www.denix.osd.mil/derp/home/documents/installation-restoration-program-report-to-congress-january-2018/
Key: DERA - Defense Environmental Restoration Account funds
BRAC - Base Realignment and Closure
MILITARY OCEAN TERMINAL
Army California CONCORD DERA MOTCO-031 FORMER FERTILIZER PLANT 201712 0 1
MILITARY OCEAN TERMINAL FORMER FERTILIZER PLANT
Army California CONCORD DERA MOTCO-031A GROUNDWATER 201712 0 1
MILITARY OCEAN TERMINAL PORT CHICAGO MAIN STREET
Army California CONCORD DERA MOTCO-038 DUMP 202009 0 4
MILITARY OCEAN TERMINAL
Army California CONCORD DERA MOTCO-040 FORMER COPPER SMELTER 202009 0 4
In the News
A Navy weapons station full of WWII-era ammunition bunkers could be transformed into 13,000 new homes in the Bay Area Business Insider, November 5, 2019 https://www.businessinsider.com/navy-weapons-station-bay-area-ammunition-bunkers-new-homes-2019-11#the-concord-naval-weapons-station-spans-12800-acres-but-developers-plan-to-renovate-less-than-one-fifth-of-that-land-1
A Navy weapons station full of WWII-era ammunition bunkers could be transformed into 13,000 new homes in the Bay Area Business Insider, November 5, 2019 https://www.businessinsider.com/navy-weapons-station-bay-area-ammunition-bunkers-new-homes-2019-11#the-concord-naval-weapons-station-spans-12800-acres-but-developers-plan-to-renovate-less-than-one-fifth-of-that-land-1
Mococo Vine Hill Maltby Port Chicago 94519 94520 94518 94521