Compliance record
Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.
| Violation | Type | Status | Period |
|---|---|---|---|
| TT | Health-based | Resolved | 1993-10-01 → 1993-10-31 |
| TT | Health-based | Resolved | 1993-10-01 → 1993-10-31 |
| TT | Health-based | Resolved | 1992-06-01 → 1992-06-30 |
| TT | Health-based | Resolved | 1992-06-01 → 1992-06-30 |
PFAS detected
Other contaminants detected
| Contaminant | Level vs EPA limit | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate | 3900 µg/L 39% of the EPA limit 10000 µg/L
worst single sample: 4859 µg/L | 378/476 | SYR4 | 2012–2019 |
| Fluoride | 737 µg/L 18% of the EPA limit 4000 µg/L
worst single sample: 820 µg/L | 147/224 | SYR4 | 2012–2019 |
| Arsenic | 7.4 µg/L 74% of the EPA limit 10 µg/L
worst single sample: 8.6 µg/L | 79/117 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 825000 µg/L 8250% of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 960000 µg/L | 54/86 | SYR4 | 2014–2019 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 21/21 | LCR | 2023 |
| Barium | 212.885 µg/L 11% of the EPA limit 2000 µg/L
worst single sample: 240 µg/L | 18/94 | SYR4 | 2012–2019 |
| Combined Uranium | 7.6586 µg/L 26% of the EPA limit 30 µg/L
worst single sample: 8.791 µg/L | 9/18 | SYR4 | 2014–2018 |
| Tetrachloroethylene | 1.1375 µg/L 23% of the EPA limit 5 µg/L
worst single sample: 1.2 µg/L | 6/144 | SYR4 | 2012–2019 |
| Chloroform | 40.6 µg/L No EPA limit set
worst single sample: 41 µg/L | 3/11 | SYR4 | 2014–2019 |
| Trichloroethylene | 7.898 µg/L 158% of the EPA limit, at the 95th percentile of samples — 5 µg/L
worst single sample: 8.12 µg/L | 3/144 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 11.755 µg/L No EPA limit set
worst single sample: 12 µg/L | 2/11 | SYR4 | 2014–2019 |
| Selenium | 8.74 µg/L 17% of the EPA limit 50 µg/L
worst single sample: 8.8 µg/L | 2/94 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 27.85 µg/L 46% of the EPA limit 60 µg/L
worst single sample: 28 µg/L | 2/11 | SYR4 | 2014–2019 |
| Trichloroacetic Acid | 17.9 µg/L No EPA limit set
worst single sample: 18 µg/L | 2/11 | SYR4 | 2014–2019 |
| Lithium | 25.4 µg/L No EPA limit set | 2/28 | UCMR-5 | 2024 |
| Bromodichloromethane | 3.5 µg/L No EPA limit set | 1/10 | SYR4 | 2014–2019 |
| Copper | 75 µg/L 5.8% of the EPA limit 1300 µg/L | 1/94 | SYR4 | 2012–2019 |
| Chromium | 11 µg/L 11% of the EPA limit 100 µg/L | 1/94 | SYR4 | 2012–2019 |
| Gross Beta Particle Activity | 3.22 pCi/L No EPA limit set | 1/3 | SYR4 | 2017–2018 |
| TTHM | 40 µg/L 50% of the EPA limit 80 µg/L | 1/9 | SYR4 | 2014–2019 |
84 contaminants tested, none detected
Utility contact
Frequently asked questions about City of Sacramento Main
Is City of Sacramento Main tap water safe to drink?
EPA monitoring detected 28 contaminants in City of Sacramento Main's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.
What contaminants were detected in City of Sacramento Main's water?
EPA monitoring detected Nitrate, Fluoride, Arsenic, Nitrate-Nitrite, Lead, and others. The full list with the level and data source for each is above.
How many people does City of Sacramento Main serve?
City of Sacramento Main reports serving 527,979 people in California, per its EPA record.
Has City of Sacramento Main had any water quality violations?
The EPA has 4 violations on file for City of Sacramento Main, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.