Almaden Air Force Station
The Formerly Used Defense Site, Almaden Air Force Station is comprised of 117.79 acres on top of Mount Umunhum and Mount Thayer in Santa Clara County, California, and is approximately 4 miles southwest of New Almaden, 12 miles south of San Jose, and 51 miles southeast of San Francisco, California.
The Site is presently owned by the Sierra Azul Midpeninsula Regional Open Space District (MROSD) and is closed to the general public.
Almaden - Source - DOD
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.
Contaminated: Groundwater Sediment Soil Surface Water
SOIL CONTAMINATION
Sewage Effluent Settling Ponds
Cost $1.28M
Cost in 2015 plus expected future cost of cleanup
This site is under ongoing monitoring until Sep 2020
CONTAMINATED AREAS
Groundwater: High Risk
Site is currently used as a communications area. Groundwater is the only source of drinking water for nearby residents. Site is located on the top of Mt. Umunhum and Mt. Thayer in a remote section of the Santa Cruz mountains.
Contaminants: Benzene 800.0 ug/L
Soil sampling results from CON/HTRW tank removal project determined that residual contamination is present. This future use for this site may include public uses. Contaminants: Benzene 0.8 mg/kg
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.
Contaminated: Groundwater Sediment Soil Surface Water
SOIL CONTAMINATION
Sewage Effluent Settling Ponds
Cost $1.28M
Cost in 2015 plus expected future cost of cleanup
This site is under ongoing monitoring until Sep 2020
CONTAMINATED AREAS
Groundwater: High Risk
Site is currently used as a communications area. Groundwater is the only source of drinking water for nearby residents. Site is located on the top of Mt. Umunhum and Mt. Thayer in a remote section of the Santa Cruz mountains.
Contaminants: Benzene 800.0 ug/L
Soil sampling results from CON/HTRW tank removal project determined that residual contamination is present. This future use for this site may include public uses. Contaminants: Benzene 0.8 mg/kg
San Jose Water Company https://www.ewg.org/tapwater/system.php?pws=CA4310011
Contaminants Detected
11 EXCEED EWG HEALTH GUIDELINES
30 Total Contaminants
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.
Contaminants Detected
11 EXCEED EWG HEALTH GUIDELINES
30 Total Contaminants
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.
All of the wells tested within the San Jose Water Company's jurisdiction were found to contain PFAS contamination. The highest concentrations were found in the Williams Well 15 which showed PFOS/PFOA concentrations of 10.9 ppt and 13.4 ppt for other PFAS. See First round of PFAS sampling for CA Public Water Systems - April 1st to June 30th 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
FUDS California ALMADEN AIR FORCE STATION DERA 01HTRW SOIL CONTAMINATION 202009 908 4
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