San Benito, CA
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for San Benito in California · Population: 66,056
TRI sites such as Fujifilm Electronic Materials USA Inc.; Trical Inc; Royal Circuit Solutions Inc.; SDWIS systems such as HOLLISTER, CITY OF; SUNNYSLOPE COUNTY WATER DIST; SAN JUAN BAUTISTA, CITY OF; NPL sites such as New Idria Mercury Mine anchor San Benito, CA's EPA extract. Derived burden score 38/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in San Benito include HOLLISTER, CITY OF; SAN JUAN BAUTISTA, CITY OF; THOUSAND TRAILS SAN BENITO PRESERVE, while Fujifilm Electronic Materials USA Inc. leads reported TRI pounds among local Form R filers. AQS median AQI 43 / peak 105 in 2024.
Burden score 38/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for San Benito -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for San Benito, CA: EPA TRI 2023 reporting year
Same facilities, both years
+200.3%
4 facilities that filed in 2022 and 2023
Whole inventory
+203.3%
12.9 thousand lb → 39.2 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 0 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- San Benito, CA's total reported releases rose from 12.9 thousand lb in 2022 to 38.8 thousand lb in 2023, based on EPA TRI filings.
- San Benito, CA's land releases rose from 0 lb in 2022 to 28.3 thousand lb in 2023, based on EPA TRI filings.
- San Benito, CA's off-site transfers rose from 2.2 thousand lb in 2022 to 6.2 thousand lb in 2023, based on EPA TRI filings.
- San Benito, CA's air releases fell from 10.7 thousand lb in 2022 to 4.3 thousand lb in 2023, based on EPA TRI filings.
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 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 (25)
| System | System pop (SDWIS) | 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 |
| UNION HEIGHTS MWC | 98 | 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 |
Superfund Sites (1)
| Site Name | Status | HRS Score |
|---|---|---|
| New Idria Mercury Mine | NPL Site | 31.66 |
Cities in San Benito (5)
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? ▼
What is the air quality in San Benito? ▼
Is the drinking water safe in San Benito? ▼
What environmental agencies cover San Benito? ▼
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.