San Benito, CA
A PlainEnviro-computed score from reported facility/violation counts, not an official EPA rating, health forecast, or population-adjusted rate. See methodology.
Environmental data for San Benito in California · Population: 66,056
San Benito, CA is tracked across three EPA datasets covering 5 Toxics Release Inventory (TRI) facilities, 24 Safe Drinking Water Act systems, and 0 Superfund National Priorities List sites. Together these generate an environmental burden score of 33/100 (Moderate Risk), calibrated against national distributions for facility density, chemical release volume, Superfund concentration, and water-system health violations.
Industrial disclosures inside the county total 67.4K lbs of reported toxic releases under EPCRA Section 313, while 9 water systems carry an active health-based violation in the SDWIS record. EPA Air Quality System monitors logged a median AQI of 43 and a peak AQI of 105 in 2024, with 71% of observed days rated "Good" (0–50).
All figures below draw directly from federal EPA records, TRI self-reported emissions, SDWIS compliance history, NPL Hazard Ranking System scores, and AQS daily AQI summaries, and are not adjusted, weighted, or forecast. A past violation or elevated score does not itself indicate current unsafe conditions; it documents the regulatory and disclosure history publicly filed with the U.S. Environmental Protection Agency through the most recent reporting cycle.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 260 (71%) | 105 | 1 | 105 |
| 2023 | 316 (87%) | 48 | 1 | 111 |
| 2022 | 297 (81%) | 68 | 0 | 97 |
| 2021 | 295 (81%) | 70 | 0 | 100 |
| 2020 | 271 (74%) | 78 | 8 | 174 |
Source: EPA Air Quality System (AQS) Annual AQI by County EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in California, see the EPA's AirNow.gov.
Water Systems (24)
| System | Population | Violations |
|---|---|---|
| HOLLISTER, CITY OF | 26,017 | 17 |
| SUNNYSLOPE COUNTY WATER DIST | 24,954 | 0 |
| SAN JUAN BAUTISTA, CITY OF | 2,335 | 5 |
| THOUSAND TRAILS SAN BENITO PRESERVE | 1,017 | 11 |
| TRES PINOS CWD | 350 | 0 |
| CASA DE FRUTA WATER SYSTEM | 250 | 2 |
| CSA NO. 31 STONEGATE WS | 230 | 3 |
| SAN JUSTO MUTUAL WATER COMPANY | 160 | 1 |
| HOLLISTER RANCH ESTATES | 150 | 8 |
| ROSA MORADA MUTUAL WATER COMPANY | 138 | 0 |
| ASHFORD HIGHLANDS MWC | 132 | 0 |
| DUNNEVILLE ESTATES CSA #50 | 120 | 0 |
| MISSION FARM R.V. PARK | 110 | 1 |
| MCMAHON ROAD MUTUAL WATER COMPANY | 102 | 0 |
| COMSTOCK MUTUAL WATER COMPANY | 100 | 0 |
| VINEYARD ESTATES MWC | 90 | 0 |
| CREEKBRIDGE MUTUAL WATER COMPANY | 69 | 0 |
| CASA DE FRUTA ORCHARDS | 53 | 0 |
| VENTURE ESTATES MWC | 50 | 0 |
| SPRINGWOOD ESTATES MWC | 50 | 0 |
| BETABEL RV RESORT | 49 | 1 |
| WHISPERING PINES INN | 38 | 0 |
| LOS MADRONES MWC | 36 | 0 |
| SAN BENITO COUNTY WATER DISTRICT | 25 | 0 |
TRI Facilities (5)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Fujifilm Electronic Materials USA Inc. | 40.8K lbs |
| 2 | Trical Inc | 15.2K lbs |
| 3 | Royal Circuit Solutions Inc. | 6.3K lbs |
| 4 | Pacific Scientific Energetics Materials Co California | 4.8K lbs |
| 5 | Pride Conveyance Systems | 397 lbs |
Cities in San Benito (2)
Frequently Asked Questions
What is the environmental risk level in San Benito, California? ▼
Are there Superfund sites in San Benito? ▼
How many toxic release facilities are in San Benito? ▼
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Is the drinking water safe in San Benito? ▼
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What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.