FORMERLY USED DEFENSE SITE INSTALLATION ID: NY29799F125000
IONA ISLAND NAVAL AMMUNITION DEPOT
tomkins cove, New York
Cost So Far
$573K
Money already spent on the evaluation and cleanup of hazardous sites.
Expected Additional Cost
$13M
The estimated amount of money needed for evaluation and cleanup of hazardous sites at this installation.
Expected Completion Date
2036
The date by which the DOD estimates cleanup of all sites will be complete. Long term monitoring may continue after this date.
The site was utilized by the Navy as an ammunition depot. The site consists of several buildings, loading docks, above-ground fuel storage tanks, underground fuel storage tanks, sewage treatment plant, coal storage area, incinerator, ammunition... see more » The site was utilized by the Navy as an ammunition depot. The site consists of several buildings, loading docks, above-ground fuel storage tanks, underground fuel storage tanks, sewage treatment plant, coal storage area, incinerator, ammunition bunkers and dumping area. As per deed dated 4 April 1900 and Declaration of Taking dated 20 March 1942, the Department of the Navy obtained 118.4 acres fee and designated the site as the Iona Island Naval Depot. On 30 July 1957, the Iona Island Naval Ammunition Depot was declared excess to the needs of the Department of the Navy and the site was transferred to the General Services Administration (GSA). As per quitclaim deed dated 16 September 1965, GSA conveyed Iona Island, 118.41 acres fee, to the Palisades Interstate Park Commission. Said deed did not contain a restoration clause but did contain a restrictive clause (park purposes only) and a recapture clause (for period of twenty years). The recapture clause was terminated in October 1985. The former Iona Island Naval Ammunition Depot is shown on the Town of Stony Point Tax Map (No. 3.00) as Block 1, Lot 3. (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
SI-L
Contaminated Buildings
Cost
$9.95M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Sep 2027
This site is under ongoing monitoring until Sep 2048
Contaminated Areas
Soil: High Risk
Soil could be eroding into streams and wetlands. Contaminants could be leaching into groundwater Exposed soil could be ingested/absorbed by park visitors and maintenance workers
Contaminants: Chrysene 1.1 mg/kg Silver and compounds 16.3 mg/kg Dibutyl phthalate 26.0 mg/kg 2,4-Dinitrotoluene 68.0 mg/kg Arsenic 82.9 mg/kg Cadmium and compounds 220.0 mg/kg Chromium 220.0 mg/kg Barium and compounds 1240.0 mg/kg Lead 9160.0 mg/kg
Groundwater: Risk Not Evaluated
Sediment (Human): Risk Not Evaluated
Surface Water (Human): Risk Not Evaluated
Site ID: 03OEW
1903 EXPLOSION
Unexploded Munitions and Ordnance Area
Cost
$3.05M
Cost in 2015 plus expected future cost of cleanup
Final Cleanup Action
Sep 2036
This site is under ongoing monitoring until Sep 2082
Contaminated Areas
Sediment (Ecological): High Risk
Contaminants: Antimony 43.3 mg/kg Nickel 85.4 mg/kg Copper 2740.0 mg/kg Zinc 2980.0 mg/kg Lead 5030.0 mg/kg
Sediment (Human): Medium Risk
Contaminants: Antimony 43.3 mg/kg Nickel 85.4 mg/kg Copper 2740.0 mg/kg Zinc 2980.0 mg/kg Lead 5030.0 mg/kg
Soil: Medium Risk
Contaminants: Antimony 2.4 mg/kg Copper 112.0 mg/kg Lead 772.0 mg/kg
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: 01CON/HTRW
C02NY074401C_IONA ISLAND NAVAL
Underground Storage Tanks
Cost
Unknown
Final Cleanup Action
Nov 2012
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 »