Loading city report
Preparing Barstow environmental records...
Review government records associated with Barstow, California.
Toxin Scout is in beta. Please verify important findings with the linked sources.
Loading city report
Preparing Barstow environmental records...
Check your water bill for your utility name and confirm the reporting year. See EPA’s guide to finding your annual water quality report.
Public water-system records for Barstow, CA from EPA SDWIS.
Golden State Water Co - Barstow
PFAS above an official threshold detected in available EPA records.
Reviewed: active/open records as of Q1 2026
City appears in system name · Serves 32,547 people
Data from EPA SDWIS
PFAS screening separates EPA UCMR5 drinking-water monitoring from nearby DoD PFAS investigation-site records; EPA samples shown are from Mar 2023 to Sep 2023.
Drinking Water PFAS Monitoring
EPA UCMR5 samples public water systems. These results are separate from nearby PFAS cleanup or investigation-site records.
1 PFAS sample result above EPA limits
Sample period: Sep 2023
UCMR5 results are sampled by public water system, not every household. Confirm your water provider before treating these as tap-water results for a specific address.
| Chemical | Concentration (µg/L) | EPA Limit (µg/L) | Sample date | Over Limit |
|---|---|---|---|---|
| PFOA | 0.0057 | 0.0040 | 2023-09-27 | Yes |
PFAS detections below EPA limits.
Nearby PFAS Investigation Sites
DoD records are nearby site investigations, not Barstow drinking-water detections. Record names come from the source database and can be broad.
Barstow Ca Mclb
Navy · Active
Known detection in the DoD source record
Remedial investigation underway
Estimated investigation end date: 2039-02
EPA ATTAINS records identify assessed water bodies that do not meet water-quality standards for designated uses.
City of Barstow-Mojave River
Reported: Nov 2026
Health-relevant causes: Metals (other Than Mercury)
Affected uses: Drinkingwater
Data from EPA ATTAINS
NPDES permits regulate pollutant discharges into U.S. waterways. Facilities must report compliance quarterly.
Violation records
Last inspected: Dec 2025
Data from EPA ECHO
To investigate water contamination, check the sampling locations, dates and results below. For tap water records, see Drinking water quality above.
Reviewed: source records as of 2026
Review historical EPA air pollution records, including monitoring and facility emissions where available. For current conditions, check local air quality on AirNow.
San Bernardino County
Assessment year: 2020
According to EPA, a cancer risk of 30-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 30 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top modeled source groups
Data from EPA AirToxScreen
EPA designations apply to a specific pollutant and federal air quality standard (NAAQS). EPA can issue a clean-data determination while a formal designation remains in effect.
Los Angeles-San Bernardino Counties (West Mojave Desert): Ozone
NonattainmentSevere 158-Hour Ozone (2015 Standard)
Original designation: Aug 2018
Health effects (EPA): Respiratory inflammation, aggravation of asthma, reduced lung function (EPA)
San Bernardino County (part); excluding Searles Valley Planning area and South Coast Air Basin: PM10
NonattainmentModeratePM-10 (1987 Standard)
Original designation: Jan 1994
Health effects (EPA): Respiratory illness, aggravation of asthma (EPA)
Historical designations under the revoked 1997 ozone standard
These records describe historical designations. EPA revoked the 1997 ozone standard on April 6, 2015.
Los Angeles and San Bernardino Counties (Western Mojave Desert)
Historical standard: 0.08 ppm (8-hour)
Historical designation: Nonattainment · Subpart 2/Severe 15
Original designation: Jun 2004
Open data source: EPA final revocation ruleContinuing requirements have not been verified for this area.
Data from EPA Green Book
EPA annual monitor summaries describe past measurements. For current air quality, see AirNow.
Barstow
Annual mean: 33.3 Parts per billion
Observation year: 2025
Annual mean: 0.051 Parts per million
EPA primary exceedance count: 22 (Ozone 8-hour 2015)
Observation year: 2025
Annual mean: 24.1 Micrograms/cubic meter (25 C)
Observation year: 2025
Data from EPA AQS
Facilities regulated under the Clean Air Act. CAA HPV flags indicate serious noncompliance such as exceeding emission limits.
Air Violations
Last inspected: Dec 2025
Data from EPA ECHO
TRI releases are self-reported annual totals (calendar year 2024). Hover fugitive or stack for definitions.
Marine Corps Logistics Base Barstow Yermo Annex
Reported: 2024
EPA records for current, proposed and formerly listed Superfund sites on the National Priorities List (NPL).
Open data source: Search EPA ECHOEPA FRS Registry ID 110071102226
Reported: Nov 2021
Reviewed: source query run Nov 2026
State environmental agencies maintain cleanup site databases that include state Superfund, voluntary cleanup, and brownfield remediation programs. These programs track additional sites beyond those on the federal NPL.
3 sites with active cleanup or investigation
5,688 ACRES; MIDDLE OF THE MOJAVE DESERT, BARSTOW
5.2 miles away · SAN BERNARDINO County
Reported: Nov 2026
909 East Williams Street, Barstow
2.7 miles away · SAN BERNARDINO County
Reported: Nov 2026
, Barstow
5.4 miles away · SAN BERNARDINO County
Reported: Nov 2026
Data from EPA ECHO
Facilities with hazardous-waste handler records under RCRA in the reviewed 5-mile city-center search area. Active handler status is separate from air, water, or other ECHO compliance violations, which are shown in their own sections.
Active RCRA handler records in the reviewed city search area
No release reports shown in this group.
Reviewed: active/open records as of 2018
Data from EPA UST Finder
Toxics Release Inventory data — chemicals disposed on-site at reporting facilities.
U.S. Marine Corps Logistics Base Barstow Nebo Range
Open data source: View EPA TRI facility recordFormerly Used Defense Sites are properties previously owned by, leased to, or otherwise possessed by the United States and under the jurisdiction of the Secretary of Defense. The FUDS program addresses environmental restoration at these properties.
Open data source: USACE FUDSSites regulated by the Mine Safety and Health Administration, including mines, sand and gravel operations, and portable crushers. Status and type are from the MSHA Mine Data Retrieval System. Records with active/intermittent status dates older than 5 years are shown as older records rather than current active sites.
More MSHA records matched the search than this preview shows.
No records shown in this group.
Reviewed: status dates within last 5 years
Data from MSHA
San Bernardino County, CA
EPA Radon Zone Map (June 2024 release)
San Bernardino County is EPA Radon Zone 2 (moderate potential). EPA defines Zone 2 counties as having predicted average indoor screening levels between 2 pCi/L and 4 pCi/L.
Radon levels can vary from home to home, so EPA recommends testing the property to know its indoor level.
FEMA flood zones describe mapped flood hazards. Look up a specific address with FEMA.
No FEMA flood-zone records shown for this report.
Results use an earlier stored RMP inventory. Current EPA ECHO location coverage is unverified.
EPA ECHO lists facilities linked to the Risk Management Program. Results include facilities with locations that can be matched. Records may be historical. Current operations, chemical inventories, and recent accident history are unverified.
Reviewed: 2000-present
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
San Bernardino County, CaliforniaPop. 2,193,656
County Health Rankings edition: 2024
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking water violation indicator
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 8,917 | 6,373 | 7,972 |
| Poor or Fair Health | 20.9% | 15.8% | 14.2% |
| Poor Physical Health Days | 4.1 | 3.1 | 3.3 |
| Poor Mental Health Days | 5.2 | 4.7 | 4.8 |
| Adult Smoking | 12.5% | 8.8% | 15.0% |
| Adult Obesity | 38.1% | 27.8% | 34.0% |
| Air Pollution - Particulate Matter | 15.6 | 7.1 | 7.3 |
| Drinking water violation indicator | Yes | N/A | N/A |
| Diabetes Prevalence | 12.3% | 10.8% | 9.6% |
| Life Expectancy | 76.1 | 79.9 | 77.6 |
EPA testing found PFAS in water samples from Golden State Water Co-Barstow. Results dated Mar 21, 2023 to Sep 27, 2023 include PFOA at 0.0057 micrograms per liter and PFHxA at 0.0054 micrograms per liter.
Check with the utility that serves your address for its testing results.
EPA drinking water records on this page list 1 violation for Golden State Water Co-Barstow.
Check your water bill to identify the utility serving your address. Ask that utility about current drinking water advisories.
Nearby EPA monitoring stations provide annual air quality measurements for Barstow.
The monitoring station at Barstow recorded an annual average of 33.3 Parts per billion for nitrogen dioxide in 2025.
The monitoring station at Barstow recorded an annual average of 0.051 Parts per million for ozone in 2025.
The monitoring station at Barstow recorded an annual average of 24.1 Micrograms/cubic meter (25 C) for particles (PM10) in 2025.
The radon data for Barstow covers San Bernardino County. EPA places this area in Zone 2, with a predicted average indoor radon screening level of 2 to 4 picocuries per liter.
This city report shows 1 Superfund site: Barstow Marine Corps Logistics Base.
No brownfield sites were returned for this city report.
The county data for Barstow reports a life expectancy of 76.1 years in San Bernardino County, California.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Barstow reports 8,917 years of life lost to deaths before age 75 per 100,000 residents in San Bernardino County, California. This measure adds up the years lost to early deaths and adjusts for differences in population age.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.
The county data for Barstow lists fine-particle pollution (PM2.5) at 15.6 micrograms per cubic meter in San Bernardino County, California.
The figure is from the 2024 edition of County Health Rankings, a University of Wisconsin program that publishes county health statistics.