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States / California

San Diego County, CA

The federal environmental record for San Diego County (population 3,269,973): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.

1

Superfund NPL sites

35

federal cleanup sites

9

PFAS-detecting water systems

68

TRI facilities

101

open tank releases

Superfund NPL sites

SiteCityStatusListed
Camp Pendleton Marine Corps BaseSan Diego Countyon the NPL11/21/1989

Drinking water: PFAS testing

Public water systems serving San Diego with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.

SystemHighest resultsReading
POTRERO ELEMENTARY SCHOOL

CA3700963

PFHxS: 250.2 ng/L

PFOA: 188.3 ng/L

PFHxA: 95.2 ng/L

above final limit
LAKESIDE WD

CA3710013

PFHxS: 5.8 ng/L

PFOS: 4.8 ng/L

PFBS: 4.8 ng/L

above final limit
SAN DIEGUITO WD

CA3710021

PFHxA: 4.9 ng/L

PFPeA: 4.8 ng/L

PFOA: 4.3 ng/L

above final limit
SWEETWATER AUTHORITY

CA3710025

PFBA: 12.3 ng/L

PFOA: 11.4 ng/L

PFBS: 11 ng/L

above final limit
RINCON DEL DIABLO MWD (ID-1)

CA3710018

PFBA: 10 ng/L

detected
SANTA FE I.D.

CA3710023

PFHxA: 4.5 ng/L

PFPeA: 4.3 ng/L

detected
PADRE DAM MWD

CA3710037

PFBA: 5.8 ng/L

detected
CAMP PENDLETON (NORTH)

CA3710700

PFBA: 6.2 ng/L

detected
CAMP PENDLETON (SOUTH)

CA3710702

PFHxS: 5.4 ng/L

PFBS: 3.2 ng/L

detected

On a system with detections? Testing and treatment options

Facilities reporting toxic releases (2024)

68 facilities in San Diego filed TRI reports for 2024, totalling 814k lb released. The 25 largest by volume:

FacilityCityTop chemicalsTotal released
US MARINE CORPS MCB CAMP PENDLETONCAMP PENDLETONLead And Lead Compounds, Copper415k lb
GENERAL DYNAMICS (NASSCO)SAN DIEGOXylene (mixed isomers), n-Butyl alcohol128k lb
GKN AEROSPACE CHEM-TRONICS INCEL CAJONNitrate compounds (water dissociable; reportable only when in aqueous solution), Hydrogen fluoride56k lb
U.S. NAVAL AIR STATION NORTH ISLANDSAN DIEGOMethyl isobutyl ketone, Lead38k lb
POLYPEPTIDE LABORATORIES SAN DIEGOSAN DIEGON,N-Dimethylformamide, Acetonitrile30k lb
BAE SYSTEMS SAN DIEGO SHIP REPAIRSAN DIEGOAluminum oxide (fibrous forms), Copper30k lb
HONEYWELL INDUSTRIAL SAFETYSAN DIEGOToluene diisocyanate (mixed isomers)26k lb
US MARINE CORPS AIR STATION MIRAMARSAN DIEGOLead, Naphthalene25k lb
US NAVY SILVER STRAND TRAINING COMPLEX (SSTC)CORONADOLead And Lead Compounds21k lb
INTEGRATED DNA TECHNOLOGIESSAN DIEGOAcetonitrile, Toluene11k lb
SHERWIN-WILLIAMS COSAN DIEGOZinc compounds, Nonylphenol Ethoxylates6k lb
KYOCERA INTERNATIONAL INCSAN DIEGOCyanide compounds, Lead And Lead Compounds5k lb
SOLAR TURBINES INC HARBOR DRIVESAN DIEGONickel, Chromium4k lb
US NAVY CAMP MICHAEL MONSOOR - LA POSTA (RANGES) (PART)CAMPOLead3k lb
US NAVAL SUBMARINE BASE SAN DIEGOSAN DIEGOXylene (mixed isomers), Naphthalene2k lb
TRILINK BIOTECHNOLOGIESSAN DIEGOAcetonitrile2k lb
SAINT GOBAIN SOLAR GARD LLCSAN DIEGOToluene, Methyl isobutyl ketone1k lb
PALL FILTRATION & SEPARATIONS GROUP INCSAN DIEGON,N-Dimethylformamide, N-Methyl-2-pyrrolidone1k lb
HYDRANAUTICSOCEANSIDEN,N-Dimethylformamide1k lb
SOMACIS INCPOWAYNitric acid, Copper And Copper Compounds926 lb
ILLUMINASAN DIEGOAcetonitrile, Dichloromethane878 lb
TESORO - SAN DIEGO TERMINALSAN DIEGOToluene, n-Hexane841 lb
K-TUBE CORPPOWAYChromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Nickel And Nickel Compounds836 lb
COSTCO OPTICAL LAB #908NATIONAL CITYLead787 lb
US CBP BORDER PATROL FIREARMS RANGE BE # CA0180SAN DIEGOLead545 lb

Underground fuel tanks

EPA's UST Finder records 996 tank facilities in San Diego: 2,858 tanks in service and 8 closed. 3,079 fuel releases are on record, of which 101 remain open. Open releases are cleanups that have not reached "no further action".

Radon

EPA maps San Diego as Zone 3, the lowest predicted indoor radon (under 2 pCi/L average). Radon and air quality are covered in depth on lung.com.

The record for one specific address

County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.

Get the report - $39

All federal cleanup sites on file

The wider Superfund enterprise inventory (SEMS) for San Diego, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.

  • 38TH AND QUINCE STREETSAN DIEGO
  • AIR FORCE PLT 19SAN DIEGO
  • ALLIED WASTE - OTAY LANDFILLCHULA VISTA
  • CAMP PENDLETON MARINE CORPS BASECAMP PENDLETON
  • CHATHAM BROTHERS BARREL YARDESCONDIDO
  • COMMODORE DAY CRUISESSAN DIEGO
  • CORONADO FIRE MERCURY ERCORONADO
  • CUSTOM CHROME AND BUMPERLA JOLLA
  • EL CAPITAN QUARRYSANTEE
  • FWS-SAN DIEGO BAY NATIONAL WILDLIFE REFUGECHULA VISTA
  • IMPERIAL BEACH NAVAL COMMUNICATIONS STAIMPERIAL BEACH
  • MASTER PLATINGSAN DIEGO
  • MUSHROOM EXPRESSVALLEY CENTER
  • NARCOTICS TASK FORCE LABORATORYCARLSBAD
  • NATIONAL CITY TATPSAN DIEGO
  • NAVAL FACILITIES ENGINEERING COMMSAN DIEGO
  • NAVAL MEDICAL CENTER SAN DIEGOSAN DIEGO
  • NAVAL RADIO RECEIVER FACILITYIMPERIAL BEACH
  • NAVAL WEAPONS STATION SEAL BEACH DET. FALLBROOKFALLBROOK
  • PALOMAR PLATING COESCONDIDO
  • POINT LOMA ANNEX NAVAL SUPPLY CTRSAN DIEGO
  • SAN DIEGO AIR NATIONAL GUARD STASAN DIEGO
  • SAN DIEGO FLEET ANTI-SUB WTCSAN DIEGO
  • SAN DIEGO PUBLIC WORKS CENTERSAN DIEGO
  • SAN DIEGO PUBLIC WORKS CENTERSAN DIEGO
  • SAN DIEGO PUBLIC WORKS CENTERSAN DIEGO
  • SIDONIA INVESTIGATIONENCINITAS
  • STAR MERCURY RESPONSESAN DIEGO
  • U.S COAST GUARD SECTOR SAN DIEGO, CASAN DIEGO
  • U.S. BORDER PATROL STATIONEL CAJON
  • US MARINE CORPS AIR STATION MIRAMARSAN DIEGO
  • US NAVY NAVAL SUBMARINE BASE SAN DIEGOSAN DIEGO
  • USDOJ INS BORDER PATROLSAN YSIDRO
  • USNAVY SINGER EDUCATION DIVISIONIMPERIAL BEACH
  • VA SAN DIEGO HEALTHCARE SYSTEMSAN DIEGO