Alameda, 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. This is a different measure than the EJ Screening score for this county, which ranks it by percentile against other tracked counties rather than against these fixed caps.
Environmental data for Alameda in California · Population: 1,651,949
TRI sites such as US Pipe & Foundry Co LLC; Tesla Inc; Safety-Kleen Inc; SDWIS systems such as EAST BAY MUD; ALAMEDA COUNTY WATER DISTRICT; CITY OF HAYWARD; NPL sites such as Alameda Naval Air Station; AMCO Chemical; Lawrence Livermore Laboratory (USDOE) anchor Alameda, CA's EPA extract. Derived burden score 87/100 (High Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
EPCRA disclosures in Alameda total 9.3M lbs; health-flagged SDWIS rows include CASTLEWOOD DOMESTIC WATER SYSTEM; CAMP LOMA MAR; CC FARMS, LLC., while US Pipe & Foundry Co LLC leads TRI pounds. AQS median AQI 49 / peak 105 in 2024.
Largest TRI sites in the extract: US Pipe & Foundry Co LLC; Tesla Inc; Safety-Kleen Inc. Named SDWIS systems: EAST BAY MUD; ALAMEDA COUNTY WATER DISTRICT; CITY OF HAYWARD. NPL sites on record: Alameda Naval Air Station; AMCO Chemical; Lawrence Livermore Laboratory (USDOE). Burden score 87/100 (High Risk) is the only weighted composite here; tables reproduce EPA disclosure history, not a current-safety verdict.
Release-over-release change
What changed for Alameda, CA: EPA TRI 2023 reporting year
Same facilities, both years
+24.1%
36 facilities that filed in 2022 and 2023
Whole inventory
+20.5%
2.3 million lb → 2.8 million lb, every facility that filed
Between the two reporting years, 3 facilities filed for the first time and 6 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Alameda, CA's total reported releases rose from 2.3 million lb in 2022 to 2.8 million lb in 2023, based on EPA TRI filings.
- Alameda, CA's water releases rose from 161 lb in 2022 to 631 lb in 2023, based on EPA TRI filings.
- Alameda, CA's land releases fell from 3.5 thousand lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Alameda, CA's air releases fell from 245.2 thousand lb in 2022 to 133.5 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 | 194 (53%) | 171 | 1 | 105 |
| 2023 | 197 (54%) | 155 | 13 | 130 |
| 2022 | 185 (51%) | 175 | 5 | 122 |
| 2021 | 155 (42%) | 200 | 9 | 151 |
| 2020 | 169 (46%) | 177 | 8 | 243 |
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 (21)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| EAST BAY MUD | 1,442,800 | 0 |
| ALAMEDA COUNTY WATER DISTRICT | 344,000 | 0 |
| CITY OF HAYWARD | 162,954 | 0 |
| DUBLIN SAN RAMON SERVICES DISTRICT | 98,776 | 0 |
| CITY OF PLEASANTON | 76,689 | 0 |
| CITY OF LIVERMORE | 38,892 | 0 |
| CITY OF MOUNTAIN HOUSE | 24,948 | 0 |
| ALAMEDA POINT | 1,400 | 0 |
| CASTLEWOOD DOMESTIC WATER SYSTEM | 524 | 1 |
| SANTA ROSA MOBILE ESTATES | 420 | 0 |
| SAHARA MOBILE COURT | 300 | 0 |
| CAMP LOMA MAR | 208 | 5 |
| CAMPHORA APARTMENTS | 126 | 0 |
| BRAND WATER COMPANY | 112 | 0 |
| CC FARMS, LLC. | 82 | 1 |
| MARINA MOBILE MANOR | 75 | 0 |
| HIDDEN HARBOR MARINA & RVP | 70 | 1 |
| DOUBLETREE RANCH WATER SYSTEM | 66 | 60 |
| NORRIS CANYON PROPERTY OWNERS ASSN | 50 | 1 |
| B&G MOBILE HOME PARK LLC WS | 50 | 0 |
| ZONE 7 WATER AGENCY | 40 | 0 |
TRI Facilities (50)
Superfund Sites (3)
| Site Name | Status | HRS Score |
|---|---|---|
| Alameda Naval Air Station | NPL Site | 50.00 |
| AMCO Chemical | NPL Site | 50.00 |
| Lawrence Livermore Laboratory (USDOE) | NPL Site | 42.24 |
Cities in Alameda (13)
Frequently Asked Questions
What is the environmental risk level in Alameda, California? ▼
Are there Superfund sites in Alameda? ▼
How many toxic release facilities are in Alameda? ▼
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Is the drinking water safe in Alameda? ▼
What environmental agencies cover Alameda? ▼
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.