Sierra Army Depot
Sierra Army Depot is a military equipment storage facility located near the unincorporated community of Herlong, California. It was built in 1942 as one of several ammunition storage facilities. In Army-speak, the Sierra Army Depot "performs a wide variety of long-term logistics and sustainment missions, ranging from equipment receipt and asset visibility to long-term care, storage and sustainment, to repair/reset of all Army fuel and water systems."
Data released by the Army through a Freedom of Information Act (FOIA) request show PFAS contamination detected at 221.00 parts per trillion (ppt) in tests of drinking water at Sierra Army Depot. The tests were conducted in 2017. Three carcinogens were found in the water families drank: PFHpA, PFHxS, PFOA
(See the complete list across the country.)
Extremely low doses of PFAS chemicals have been linked to cancer, harm to the reproductive and immune systems, thyroid disease and other health problems. Harvard health professionals say 1 ppt of the substances may be harmful.
“There are currently no Army personnel or families drinking water with levels of PFOS/PFOA above the Lifetime Health Advisory, (LHA)” the Army told the Environmental Working Group in August, 2019.
The EPA’s LHA for PFAS is set at 70 ppt while California’s Division of Drinking Water has established Notification Levels at 6.5 parts per trillion for PFOS and 5.1 parts per trillion for PFOA, two types of PFAS chemicals. Firefighting foams made with PFAS and long used on military installations are a major source of PFAS contamination.
(See the complete list across the country.)
Extremely low doses of PFAS chemicals have been linked to cancer, harm to the reproductive and immune systems, thyroid disease and other health problems. Harvard health professionals say 1 ppt of the substances may be harmful.
“There are currently no Army personnel or families drinking water with levels of PFOS/PFOA above the Lifetime Health Advisory, (LHA)” the Army told the Environmental Working Group in August, 2019.
The EPA’s LHA for PFAS is set at 70 ppt while California’s Division of Drinking Water has established Notification Levels at 6.5 parts per trillion for PFOS and 5.1 parts per trillion for PFOA, two types of PFAS chemicals. Firefighting foams made with PFAS and long used on military installations are a major source of PFAS contamination.
Sierra Army Depot - Source - DOD
7 Active SitesSites 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.
EXPLOSIVES & MUNITIONSMedium Risk
Restricted Access
Site ID: SIAD-001-R-01
HONEY LAKE DEMOLITION RANGE AOpen Burn
Cost
$8.32MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
JAN 2017This site is under ongoing monitoring until Dec 2046
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: SIAD-002
DRMO TRENCH AREADisposal Pit and Dry Well
Cost
$2.94MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
JAN 2010This site is under ongoing monitoring until Jun 2031
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: CC-SIAD601
BUILDING 640 UNDERGROUND STORAGE TANKSUnderground Storage Tanks
Cost
$219KCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
OCT 2012
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: SIAD-003
ABANDONED LANDFILLLandfill
Cost
$3.33MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
MAR 2015This site is under ongoing monitoring until Sep 2045
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: SIAD-001
TNT LEACHING BEDSDisposal Pit and Dry Well
Cost
$2.42MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
NOV 1998
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: SIAD-014
BUILDING 210 AREADisposal Pit and Dry Well
Cost
$7.53MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
OCT 2013This site is under ongoing monitoring until Sep 2045
EXPLOSIVES & MUNITIONSRisk Not Required
No Access
Site ID: SIAD-017-R-01
DRMO YARDMixed Waste Area
Cost
UNKNOWN
Final Cleanup Action
AUG 2016
7 Active SitesSites 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.
EXPLOSIVES & MUNITIONSMedium Risk
Restricted Access
Site ID: SIAD-001-R-01
7 Active SitesSites 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.
EXPLOSIVES & MUNITIONSMedium Risk
Restricted Access
Site ID: SIAD-001-R-01
HONEY LAKE DEMOLITION RANGE AOpen Burn
Cost
$8.32MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
JAN 2017This site is under ongoing monitoring until Dec 2046
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: SIAD-002
DRMO TRENCH AREADisposal Pit and Dry Well
Cost
$2.94MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
JAN 2010This site is under ongoing monitoring until Jun 2031
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: CC-SIAD601
BUILDING 640 UNDERGROUND STORAGE TANKSUnderground Storage Tanks
Cost
$219KCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
OCT 2012
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: SIAD-003
ABANDONED LANDFILLLandfill
Cost
$3.33MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
MAR 2015This site is under ongoing monitoring until Sep 2045
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: SIAD-001
TNT LEACHING BEDSDisposal Pit and Dry Well
Cost
$2.42MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
NOV 1998
HAZARDOUS SUBSTANCESRisk Not Required
Restricted Access
Site ID: SIAD-014
BUILDING 210 AREADisposal Pit and Dry Well
Cost
$7.53MCost in 2015 plus expected future cost of cleanup
Final Cleanup Action
OCT 2013This site is under ongoing monitoring until Sep 2045
EXPLOSIVES & MUNITIONSRisk Not Required
No Access
Site ID: SIAD-017-R-01
DRMO YARDMixed Waste Area
Cost
UNKNOWN
Final Cleanup Action
AUG 2016
7 Active SitesSites 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.
EXPLOSIVES & MUNITIONSMedium Risk
Restricted Access
Site ID: SIAD-001-R-01
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
Army California SIERRA ARMY DEPOT DERA SIAD-001 TNT LEACHING BEDS 204609 2,075 30
Army California SIERRA ARMY DEPOT DERA SIAD-002 DRMO TRENCH AREA 204610 3,286 30
Army California SIERRA ARMY DEPOT DERA SIAD-003 ABANDONED LANDFILL 204603 4,526 30
Army California SIERRA ARMY DEPOT DERA SIAD-014 BUILDING 210 AREA 202909 4,596 13
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
Army California SIERRA ARMY DEPOT DERA SIAD-001 TNT LEACHING BEDS 204609 2,075 30
Army California SIERRA ARMY DEPOT DERA SIAD-002 DRMO TRENCH AREA 204610 3,286 30
Army California SIERRA ARMY DEPOT DERA SIAD-003 ABANDONED LANDFILL 204603 4,526 30
Army California SIERRA ARMY DEPOT DERA SIAD-014 BUILDING 210 AREA 202909 4,596 13
96113 96109