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NAVY INSTALLATION ID: CA917302320800

EL TORO MCAS

santa ana, California

Cost So Far

$170M

Money already spent on the evaluation and cleanup of hazardous sites.

Expected Additional Cost

$43.1M

The estimated amount of money needed for evaluation and cleanup of hazardous sites at this installation.

Expected Completion Date

2049

The date by which the DOD estimates cleanup of all sites will be complete. Long term monitoring may continue after this date.

29 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.

Land Controls & Restrictions

Many sites have been declared “clean” by the DOD but are still not safe for people. This military installation is safe only with the following conditions in place: deed restrictions, barriers. see more » a deed restriction is documented in the parcel deed. a barrier, including but not limited to a paved surface or landfill cap, must be maintained in order to prevent exposure to contaminants, including vapor intrusion into an enclosed structure. gate(s) and/or door(s) must be locked to prevent access and exposure to contaminants. state or local permits required for construction, development, excavation, well drilling, etc. the agencies issuing the permits should be notified of areas impacted by lucs. annual written certification of compliance with lucs prohibit construction and/or operation of businesses, structures or other areas frequented by sensitive populations, such as children and the elderly, unless prior written approval of the navy and lead regulatory agency is obtained. prohibits disturbance of surface or subsurface soil due to invasive activities such as construction, unless prior written approval of the navy and lead regulatory agency is obtained. groundwater use restricted. prohibits the disturbance or use of existing groundwater wells, unless prior written approval of the navy and lead regulatory agency is obtained. prohibit residential use in certain areas, unless prior written approval of the navy and lead regulatory agency is obtained. a landfill cover at the site prevents exposure to contaminated soil and reduces infiltration of groundwater. this cover will be inspected and maintained. prohibits access, unless prior written approval of the navy and lead regulatory agency is obtained. « see less

8 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: SITE 00001

EL TORO MCAS

Explosive Ordnance Disposal Area

Cost

$8.67M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Sep 2013

This site is under ongoing monitoring until Oct 2044

Contaminated Areas

Groundwater: Low Risk

Contaminants: Methylene chloride 700.0 ppb Arsenic (cancer) 1400.0 ppb Cadmium and compounds 1900.0 ppb Silver and compounds 2300.0 ppb Cyanide (free) 5700.0 ppb Vanadium 11900.0 ppb Barium and compounds 23300.0 ppb Selenium 32500.0 ppb Bis(2-ethylhexyl)phthalate (DEHP) 49000.0 ppb Manganese and compounds 74700.0 ppb Nickel and compounds 110000.0 ppb

Soil: Low Risk

Contaminants: Toluene 0.01 ppb Selenium 0.83 ppb Nitrate 1.53 ppb

See more details...

Site ID: SITE 00018

EL TORO MCAS

Contaminated Ground Water

Cost

$4.77M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Nov 2007

Contaminated Areas

Groundwater: High Risk

Contaminants: Dichloroethylene, 1,2- (mixture) 3000.0 ppb Dichloroethylene, 1,1- 8000.0 ppb Chloroform 12000.0 ppb Carbon tetrachloride 19000.0 ppb Tetrachloroethylene (PCE) 58000.0 ppb Benzene 730000.0 ppb Trichloroethylene (TCE) 2000000.0 ppb

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Site ID: SITE 00016

EL TORO MCAS

Fire/Crash Training Area

Cost

$4.13M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Mar 2007

Contaminated Areas

Groundwater: Medium Risk

Contaminants: Benzene 1000.0 ppb Methylene Chloride 5500.0 ppb Chloroform 130000.0 ppb Trichloroethylene (TCE) 540000.0 ppb Ethyl benzene 700000.0 ppb

Soil: Medium Risk

Contaminants: Fluorene 2.0 ppb Xylene (mixed) 23.0 ppb Naphthalene 33.0 ppb Lead 291.0 ppb

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Site ID: UST C00003

EL TORO MCAS

Underground Storage Tanks

Cost

$189K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Oct 2012

Contaminated Areas

Soil: Low Risk

Contaminants: Ethylbenzene 9.3 ppb Xylene (mixed) 49.0 ppb

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Site ID: SITE 00024

EL TORO MCAS

Spill Site Area

Cost

$12M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Jan 2006

Contaminated Areas

Groundwater: High Risk

Contaminants: Trichloroethylene (TCE) 3000000.0 ppb

Soil: High Risk

Contaminants: Trichloroethylene (TCE) 10.0 ppb Xylene (mixed) 13.0 ppb

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Site ID: SWMU C0001

EL TORO MCAS

Storage Area

Cost

$5,000

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Nov 2005

Site ID: UST C00001

EL TORO MCAS

POL (Petroleum/Oil/Lubricants) Lines

Cost

$721K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Mar 2004

Contaminated Areas

Groundwater: High Risk

Contaminants: Benzene 79000000.0 ppb Toluene 100000000.0 ppb Ethylbenzene 1400000000.0 ppb Xylene (mixed) 3340000000.0 ppb

Soil: High Risk

Contaminants: Benzene 100.0 ppb

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Site ID: SITE 00002

EL TORO MCAS

Landfill

Cost

$4.47M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Jun 2012

This site is under ongoing monitoring until Apr 2046

Contaminated Areas

Groundwater: High Risk

Contaminants: Beryllium and compounds 640.0 ppb 1,2-Dichloroethane (EDC) 900.0 ppb Arsenic (cancer) 4700.0 ppb Chloroform 6000.0 ppb Tetrachloroethylene (PCE) 8000.0 ppb 1,2-Dichloroethylene (mixture) 8000.0 ppb Selenium 8000.0 ppb Vanadium 15000.0 ppb Trichloroethylene (TCE) 82000.0 ppb Manganese and compounds 239000.0 ppb

Soil: Low Risk

Contaminants: Toluene 0.01 ppb Acetone 0.03 ppb Dalapon 0.08 ppb Butyl benzyl phthalate 0.15 ppb Aldrin 3.01 ppb Bis(2-ethylhexyl)phthalate (DEHP) 4.2 ppb

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21 Inactive Sites

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: SITE 00013

EL TORO MCAS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Soil: High Risk

Contaminants: Benzo[k]fluoranthene 0.19 ppb Chrysene 0.21 ppb Benzo[a]pyrene 0.21 ppb Benzo[b]fluoranthene 0.26 ppb Lead 250.0 ppb

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Site ID: SITE 00014

EL TORO MCAS

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Oct 2000

Contaminated Areas

Soil: High Risk

Contaminants: Dibenz[ah]anthracene 0.64 ppb Indeno[1,2,3-cd]pyrene 1.5 ppb Benz(a)anthracene 2.2 ppb Benzo[k]fluoranthene 3.1 ppb Benzo[a]pyrene 3.1 ppb Benzo[b]fluoranthene 3.8 ppb Lead 923.0 ppb

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Site ID: SITE 00015

EL TORO MCAS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Soil: Medium Risk

Contaminants: Benzene, methyl- 50.0 ppb

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Site ID: SITE 00019

EL TORO MCAS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Soil: High Risk

Contaminants: Dibenz[ah]anthracene 0.32 ppb Indeno[1,2,3-cd]pyrene 0.78 ppb Benzo[k]fluoranthene 0.97 ppb Benzo[a]pyrene 1.1 ppb Benzo[b]fluoranthene 1.2 ppb Benz(a)anthracene 1.2 ppb

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Site ID: SITE 00021

EL TORO MCAS

Storage Area

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Soil: High Risk

Contaminants: Dibenz[ah]anthracene 0.57 ppb Indeno[1,2,3-cd]pyrene 1.1 ppb Benz(a)anthracene 1.8 ppb Anthracene 1.9 ppb Benzo[k]fluoranthene 2.0 ppb Benzo[a]pyrene 2.0 ppb Benzo[b]fluoranthene 2.1 ppb Chrysene 3.1 ppb Lead 171.0 ppb

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Site ID: SITE 00022

EL TORO MCAS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Groundwater: High Risk

Contaminants: Arsenic (cancer) 1700.0 ppb Carbon tetrachloride 5000.0 ppb Tetrachloroethylene (PCE) 7000.0 ppb Antimony and compounds 16600.0 ppb Nitrate 18700.0 ppb Selenium 28900.0 ppb Trichloroethylene (TCE) 1000000.0 ppb

Soil: Medium Risk

Contaminants: Benzo[a]pyrene 0.32 ppb Benz(a)anthracene 0.39 ppb Chrysene 0.4 ppb

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Site ID: SITE 00025

EL TORO MCAS

Drainage Ditch

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Sediment (Fresh): Low Risk

Contaminants: Arsenic (cancer) 3.7 ppb

Sediment (Human): Low Risk

Contaminants: Arsenic (cancer) 3.7 ppb

Surface Water (Fresh): Low Risk

Contaminants: Arsenic (cancer) 8000.0 ppb

Surface Water (Human): Low Risk

Contaminants: Arsenic (cancer) 8000.0 ppb

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Site ID: SITE 00003

EL TORO MCAS

Landfill

Cost

$5.79M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Aug 2014

This site is under ongoing monitoring until Jan 2046

Contaminated Areas

Soil: High Risk

Contaminants: DDT 0.21 ppb Methylene chloride 0.22 ppb Mercury 0.65 ppb Silver and compounds 0.69 ppb Bis(2-ethylhexyl)phthalate (DEHP) 1.4 ppb DDE,4,4- 47.7 ppb Lead 76.9 ppb DDD,4,4- 293.0 ppb

Groundwater: Medium Risk

Contaminants: Heptachlor 70.0 ppb DDT 110.0 ppb Dieldrin 110.0 ppb Dalapon 2200.0 ppb Chloromethane 3000.0 ppb Manganese and compounds 161000.0 ppb Nickel and compounds 166000.0 ppb

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Site ID: SITE 00023

EL TORO MCAS

Waste Lines

Cost

Unknown

Final Cleanup Action

Sep 1996

Contaminated Areas

Groundwater: Low Risk

Contaminants: Chromium (III) 100000.0 ppb

Soil: Low Risk

Contaminants: Chromium (III) 2.0 ppb

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Site ID: SITE 00004

EL TORO MCAS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Soil: High Risk

Contaminants: Dieldrin 0.03 ppb Benz(a)anthracene 0.22 ppb Lead 258.0 ppb

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Site ID: SITE 00012

EL TORO MCAS

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Jun 2012

Contaminated Areas

Soil: High Risk

Contaminants: Dieldrin 0.1 ppb Indeno[1,2,3-cd]pyrene 0.44 ppb Benzo[k]fluoranthene 0.55 ppb Benzo[a]pyrene 0.67 ppb Benz(a)anthracene 0.69 ppb Benzo[b]fluoranthene 0.93 ppb Polychlorinated biphenyls (PCBs) 2.49 ppb DDT 3.65 ppb Arsenic (cancer) 103.0 ppb Lead 531.0 ppb

Groundwater: Medium Risk

Contaminants: Carbon tetrachloride 500.0 ppb Tetrachloroethylene (PCE) 18000.0 ppb Antimony and compounds 18000.0 ppb Nitrate 22900.0 ppb Selenium 56700.0 ppb Nickel and compounds 120000.0 ppb

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Site ID: SITE 00020

EL TORO MCAS

Oil/Water Separator

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Soil: High Risk

Contaminants: Benzo[a]pyrene 0.79 ppb Bis(2-ethylhexyl)phthalate (DEHP) 22.0 ppb Zinc 2070.0 ppb Lead 2870.0 ppb

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Site ID: SITE 00007

EL TORO MCAS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Apr 2001

Contaminated Areas

Soil: High Risk

Contaminants: Dieldrin 0.03 ppb Dibenz[ah]anthracene 0.41 ppb Benzo[k]fluoranthene 1.3 ppb Benz(a)anthracene 1.3 ppb Indeno[1,2,3-cd]pyrene 1.5 ppb Benzo[a]pyrene 1.8 ppb Chrysene 2.4 ppb Benzo[b]fluoranthene 2.8 ppb Lead 931.0 ppb

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Site ID: SITE 00005

EL TORO MCAS

Landfill

Cost

$2.9M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Dec 2011

This site is under ongoing monitoring until Jun 2046

Contaminated Areas

Soil: High Risk

Contaminants: Methoxychlor 0.12 ppb DDT 0.24 ppb Thallium Nitrate 0.88 ppb 2-Methyl-4-Chlorophenoxyacetic Acid 211000.0 ppb

Groundwater: Low Risk

Contaminants: Chromium VI and compounds 200.0 ppb

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Site ID: ELTORO ENV

EL TORO MCAS

Unknown Site Type

Cost

$603K

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Sep 2013

This site is under ongoing monitoring until Nov 2021

Site ID: SITE 00017

EL TORO MCAS

Landfill

Cost

$2.79M

Cost in 2015 plus expected future cost of cleanup

Final Cleanup Action

Jul 2008

This site is under ongoing monitoring until Sep 2045

Contaminated Areas

Soil: High Risk

Contaminants: Benz(a)anthracene 0.2 ppb Chrysene 0.22 ppb Indeno[1,2,3-cd]pyrene 0.24 ppb Benzo[a]pyrene 0.39 ppb 4-Methylphenol 34.0 ppb Chromium VI and compounds 297.0 ppb Lead 361.0 ppb

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Site ID: SITE 00006

EL TORO MCAS

Spill Site Area

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Soil: High Risk

Contaminants: Carbon tetrachloride 0.01 ppb Bis(2-ethylhexyl)phthalate (DEHP) 14.0 ppb Lead 1410.0 ppb

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Site ID: SITE 00008

EL TORO MCAS

Storage Area

Cost

Unknown

Final Cleanup Action

Jun 2012

Contaminated Areas

Groundwater: High Risk

Contaminants: Arsenic (cancer) 1900.0 ppb Trichloroethane, 1,1,2- 2000.0 ppb Carbon tetrachloride 6000.0 ppb Tetrachloroethylene (PCE) 8000.0 ppb Dichloroethylene, 1,1- 8000.0 ppb Nickel and compounds 138000.0 ppb Trichloroethylene (TCE) 140000.0 ppb Nitrate 15400000.0 ppb

Soil: High Risk

Contaminants: Benzo[a]pyrene 0.15 ppb Chrysene 0.16 ppb Chlordane, alpha- (2) 0.45 ppb Dieldrin 0.84 ppb Polychlorinated biphenyls (PCBs) 20.4 ppb Lead 1520.0 ppb

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Site ID: SITE 00009

EL TORO MCAS

Fire/Crash Training Area

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Groundwater: High Risk

Contaminants: 1,2-Dichloroethane (EDC) 500.0 ppb 1,1-Dichloroethylene 4000.0 ppb Carbon tetrachloride 7000.0 ppb Tetrachloroethylene (PCE) 8000.0 ppb Trichloroethylene (TCE) 2000000.0 ppb Nitrate 23600000.0 ppb

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Site ID: SITE 00010

EL TORO MCAS

Surface Disposal Area

Cost

Unknown

Final Cleanup Action

Sep 1997

Contaminated Areas

Groundwater: High Risk

Contaminants: 1,1-Dichloroethylene 600.0 ppb Arsenic (cancer) 1500.0 ppb Carbon tetrachloride 2000.0 ppb Tetrachloroethylene (PCE) 8000.0 ppb Selenium 15400.0 ppb Trichloroethylene (TCE) 35000.0 ppb Nitrate 15800000.0 ppb

Soil: Medium Risk

Contaminants: Indeno[1,2,3-cd]pyrene 0.29 ppb Benz(a)anthracene 0.35 ppb Benzo[b]fluoranthene 0.37 ppb Benzo[a]pyrene 0.38 ppb Chrysene 0.46 ppb

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Site ID: SITE 00011

EL TORO MCAS

Storage Area

Cost

Unknown

Final Cleanup Action

May 2003

Contaminated Areas

Soil: Medium Risk

Contaminants: Polychlorinated biphenyls (PCBs) 4.96 ppb

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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 »