What was found in ZIP 95204
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 11937 µg/L 119% of the EPA limit, in the worst sample — 10000 µg/L | 2/2 | SYR4 |
| Nitrate-Nitrite | 11000 µg/L 110% of the EPA limit, in the worst sample — 10000 µg/L | 2/2 | SYR4 |
| Barium | 290 µg/L 14% of the EPA limit 2000 µg/L | 1/2 | SYR4 |
| Fluoride | 140 µg/L 3.5% of the EPA limit 4000 µg/L | 2/2 | SYR4 |
| Copper | 128.6 µg/L 9.9% of the EPA limit 1300 µg/L | 1/2 | SYR4 |
| TTHM | 108.7 µg/L 136% of the EPA limit, in the worst sample — 80 µg/L | 1/2 | SYR4 |
| Chloroform | 95.89 µg/L No EPA limit set | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 49 µg/L 82% of the EPA limit 60 µg/L | 1/2 | SYR4 |
| Trichloroacetic Acid | 35 µg/L No EPA limit set | 1/2 | SYR4 |
| Arsenic | 28.711 µg/L 287% of the EPA limit, in the worst sample — 10 µg/L | 1/2 | SYR4 |
| Chromium | 21.542 µg/L 22% of the EPA limit 100 µg/L | 1/2 | SYR4 |
| Lead | 19.036 µg/L 127% of the EPA limit, in the worst sample — 15 µg/L | 1/2 | SYR4 |
| Dichloroacetic Acid | 19 µg/L No EPA limit set | 1/2 | SYR4 |
| Bromodichloromethane | 13.31 µg/L No EPA limit set | 1/2 | SYR4 |
| Combined Uranium | 12.9183 µg/L 43% of the EPA limit 30 µg/L | 1/2 | SYR4 |
| Gross Beta Particle Activity | 5.7 pCi/L No EPA limit set | 1/2 | SYR4 |
| Trichloroethylene | 4.84 µg/L 97% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| Dibromochloromethane | 4.1 µg/L No EPA limit set | 1/2 | SYR4 |
| Monochloroacetic Acid | 2.6 µg/L No EPA limit set | 1/2 | SYR4 |
| Tetrachloroethylene | 1.86 µg/L 37% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| Xylenes, Total | 1.3 µg/L 0% of the EPA limit 10000 µg/L | 1/2 | SYR4 |
| Selenium | 1.299 µg/L 2.6% of the EPA limit 50 µg/L | 1/2 | SYR4 |
| Dibromoacetic Acid | 1.1 µg/L No EPA limit set | 1/2 | SYR4 |
| Bromoform | 1.01 µg/L No EPA limit set | 1/2 | SYR4 |
| 1,2-Dichloropropane | 0.6100 µg/L 12% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| Antimony, Total | 0.2010 µg/L 3.4% of the EPA limit 6 µg/L | 1/2 | SYR4 |
| Beryllium, Total | 0.1960 µg/L 4.9% of the EPA limit 4 µg/L | 1/2 | SYR4 |
| Cadmium | 0.1820 µg/L 3.6% of the EPA limit 5 µg/L | 1/2 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.1300 µg/L 65% of the EPA limit 0.2000 µg/L | 2/2 | SYR4 |
| Thallium, Total | 0.0580 µg/L 2.9% of the EPA limit 2 µg/L | 1/2 | SYR4 |
| Mercury | 0.0460 µg/L 2.3% of the EPA limit 2 µg/L | 1/2 | SYR4 |
| PFOS | 0.0052 µg/L No EPA limit set | 1/2 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L | 2/2 | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 95204
| Supplier | State | Population served |
|---|---|---|
| CALIFORNIA WATER SERVICE - STOCKTON | CA | 176,266 |
| WINE COUNTRY APARTMENTS | CA | 40 |
Frequently asked questions about ZIP 95204 tap water
Is the tap water in ZIP 95204 safe to drink?
EPA testing detected 33 contaminants across the water suppliers serving ZIP 95204. 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 95204?
2 public water suppliers report EPA drinking-water monitoring for ZIP 95204. Each is listed above with its population served.
What contaminants are in ZIP 95204's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Barium, Fluoride, Copper, and others across this ZIP's suppliers. The full list with levels and sources is above.