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Review government records associated with Lancaster, California. Open a section to see source records, coverage and dates. These city-level results do not establish exposure at a home or identify your water provider.
Toxin Scout summarizes public records from government and public datasets. Data can be delayed, incomplete, approximate, matched at non-parcel levels, or have accuracy problems as a result of this product's beta status, so verify important findings against the linked source records.
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Preparing Lancaster environmental records...
Counts describe the records shown, not a complete city inventory. Some sources include nearby locations.
Drinking water compliance, PFAS records, natural water body health, discharge permits, and water-quality monitoring records for Lancaster.
Public water-system records for Lancaster, CA from EPA SDWIS.
Lancaster Water Company
Active monitoring or reporting issue detected in EPA SDWIS.
Reviewed: active/open records as of Q1 2026
City listed in EPA records · Serves 80 people
Data from EPA SDWIS
Reviewed: source records as of Q1 2026
EPA UCMR5 — No PFAS detection records shown for these water systems
Open data source: EPA UCMR5DoD PFAS — No investigation records shown for this report
Open data source: DoD PFASWater Body Impairment (ATTAINS) city records are temporarily unavailable.
Reviewed: source records as of Q4 2025
Reviewed: source records as of 2026
Air quality data from EPA monitoring stations, facility emissions inventories, and area-level air-quality designations in this city.
Los Angeles County
Reported: Dec 2020
EPA national average is ~30 per million
According to EPA, a cancer risk of 40-in-1-million means that for every 1 million people continuously exposed to these air toxics over a 70-year lifetime, an estimated 40 may develop cancer from that exposure. This is in addition to cancer risk from all other causes.
Top local emission sources
Data from EPA AirToxScreen
Air Quality Nonattainment Areas city records are temporarily unavailable.
Lancaster - Fairgrounds
Annual mean: 10.0 ppb · EPA standard: 100 ppb
Reported: 2024
Annual mean: 0.053 ppm · EPA standard: 0.07 ppm
Annual standard context: 30 exceedance days recorded in the reporting period
Reported: 2024
Annual mean: 23.6 μg/m³ · EPA standard: 150 μg/m³
Reported: 2024
Data from EPA AQS
Reviewed: source records as of Q4 2025
Contaminated sites, waste facilities, cleanup records, and industrial operations in this city.
Reviewed: source query run Oct 2026
Reviewed: source query run Oct 2026
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
Formerly 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 FUDSReported: Oct 2026
No MSHA mine or extraction site records shown for this report.
Los Angeles County, CA
Reported: Mar 2026
Los Angeles 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.
Flood-map status, chemical accident risk, nuclear facilities, pipeline incidents, and community health indicators in this city.
FEMA's National Flood Hazard Layer maps flood risk. Properties in a Special Flood Hazard Area are required to carry flood insurance if they have a federally backed mortgage.
Minimal flood hazard — outside the 1% and 0.2% annual chance floodplains.
Risk Management Program records cover listed chemicals above EPA thresholds. Records may include historical registrations and do not confirm current operations or current chemical inventories.
Accident history is not established by these EPA ECHO facility records.
Reviewed: source records as of Q1 2026
Data from EPA ECHO
PHMSA tracks incidents involving natural gas and hazardous liquid pipelines. Incidents include leaks, ruptures, and explosions.
No pipeline incident records surfaced for this city report in the last 5 years.
Reviewed: last 5 years
Data from PHMSA
Health outcomes from County Health Rankings. Values shown alongside state and national averages.
Los Angeles County, CaliforniaPop. 9,721,138
Reported: Mar 2026
Premature Death
Poor or Fair Health
Poor Physical Health Days
Poor Mental Health Days
Adult Smoking
Adult Obesity
Air Pollution - Particulate Matter
Drinking Water Violations
Diabetes Prevalence
Life Expectancy
| Indicator | County | State | National |
|---|---|---|---|
| Premature Death | 6,317 | 6,373 | 7,972 |
| Poor or Fair Health | 18.2% | 15.8% | 14.2% |
| Poor Physical Health Days | 3.5 | 3.1 | 3.3 |
| Poor Mental Health Days | 5.1 | 4.7 | 4.8 |
| Adult Smoking | 11.0% | 8.8% | 15.0% |
| Adult Obesity | 28.5% | 27.8% | 34.0% |
| Air Pollution - Particulate Matter | 13.4 | 7.1 | 7.3 |
| Drinking Water Violations | 1 | 1 | N/A |
| Diabetes Prevalence | 11.7% | 10.8% | 9.6% |
| Life Expectancy | 80.1 | 79.9 | 77.6 |