FORMERLY USED DEFENSE SITE INSTALLATION ID: CA99799F573900
NAVAL AUXILIARY AIR STATION ARCATA
mckinleyville, California
Cost So Far
$2.64M
Money already spent on the evaluation and cleanup of hazardous sites.
Expected Additional Cost
$43K
The estimated amount of money needed for evaluation and cleanup of hazardous sites at this installation.
Completion Date
2018
The date the DOD says cleanup of all sites was completed. Long term monitoring may continue after this date.
The 665.39-acre site of the former Naval Air Station (NAS) Arcata is located 2 miles south of McKinleyville and 15 miles north of Eureka in Humboldt County, California. Humboldt County has installed and operates two additional 12,000-gallon... see more » The 665.39-acre site of the former Naval Air Station (NAS) Arcata is located 2 miles south of McKinleyville and 15 miles north of Eureka in Humboldt County, California. Humboldt County has installed and operates two additional 12,000-gallon underground storage tanks (USTs) to store aviation fuel. One 11-gallon transformer installed by the Department of Defense is in storage at the airport. However, this item was used by the County until 1988. The site is currently owned by the County of Humboldt as a public airport. (Source: U.S. Army Corps of Engineers) « see less
3 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.
2 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: 02HTRW
HAZARDOUS, TOXIC AND RADIOACTIVE WASTE
Contaminated Ground Water
Cost
$21K
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Sep 2018
Contaminated Areas
Soil: Medium Risk
Contamination in soil has the potential to migrate to the underlying aquifer. Access to airport lands is very limited.
Contaminants: Benzene 370.0 mg/kg Benzo[b]fluoranthene 30000.0 mg/kg Benzo[k]fluoranthene 30000.0 mg/kg Benz[a]anthracene 46000.0 mg/kg
Site ID: 01CON/HTRW
J09CA079901C_NAVAL AUXILIARY A
Underground Storage Tanks
Cost
$22K
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Sep 2018
1 Inactive Site
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: 03OEW
OEW
Unknown Site Type
Cost
Unknown
Final Cleanup Action
Apr 1999
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 »