What was found in ZIP 95258
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 586225 µg/L 5862% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Nitrate | 8120.18 µg/L 81% of the EPA limit 10000 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Barium | 355.65 µg/L 18% of the EPA limit 2000 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Fluoride | 100 µg/L 2.5% of the EPA limit 4000 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 32.7725 µg/L 109% of the EPA limit, at the 95th percentile of samples — 30 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| TTHM | 12.1 µg/L 15% of the EPA limit 80 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Arsenic | 7 µg/L 70% of the EPA limit 10 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Bromoform | 5.25 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Chromium | 3.7 µg/L 3.7% of the EPA limit 100 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 3.7 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 2.75 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Chloroform | 1.91 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 1.9 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 1.85 µg/L 3.1% of the EPA limit 60 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Tetrachloroethylene | 1.7 µg/L 34% of the EPA limit 5 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Lead | 1.275 µg/L 8.5% of the EPA limit 15 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Selenium | 1 µg/L 2% of the EPA limit 50 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| Mercury | 0.2950 µg/L 15% of the EPA limit 2 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0560 µg/L 28% of the EPA limit 0.2000 µg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2019 | 1/1 | SYR4 |
| PFOS | 0.0135 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0085 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0083 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0047 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0035 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0033 µg/L No EPA limit set Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: SAN JOAQUIN COUNTY-MOKELUMNE ACRES · 3,802 people · 2024 | 1/1 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
Water suppliers serving ZIP 95258
| Supplier | State | Population served |
|---|---|---|
| SAN JOAQUIN COUNTY-MOKELUMNE ACRES | CA | 3,802 |
Frequently asked questions about ZIP 95258 tap water
Is the tap water in ZIP 95258 safe to drink?
EPA testing detected 27 contaminants across the water suppliers serving ZIP 95258. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 95258?
1 public water supplier report EPA drinking-water monitoring for ZIP 95258. Each is listed above with its population served.
What contaminants are in ZIP 95258's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Barium, Fluoride, Combined Uranium, and others across this ZIP's suppliers. The full list with levels and sources is above.