What was found in ZIP 92257
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 | 973000 µg/L 9730% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 1/2 | SYR4 |
| Nitrate | 8588 µg/L 86% of the EPA limit 10000 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 2/2 | SYR4 |
| Fluoride | 918 µg/L 23% of the EPA limit 4000 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 2/2 | SYR4 |
| Copper | 556 µg/L 43% of the EPA limit 1300 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 1/2 | SYR4 |
| Barium | 78.4 µg/L 3.9% of the EPA limit 2000 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 129.5 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Lithium | 17.7 µg/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2025
Highest in the ZIP: 82.2 µg/L — GSWC - CALIPATRIA · 7,363 people · 2024 | 2/2 | UCMR-5 |
| TTHM | 17.55 µg/L 22% of the EPA limit 80 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 71.2 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 5.28 µg/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 24.6 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 6.25 µg/L 10% of the EPA limit 60 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 22.8 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Arsenic | 21 µg/L 210% of the EPA limit, at the 95th percentile of samples — 10 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 4.36 µg/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 21 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Chloroform | 4.13 µg/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 19.7 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Combined Uranium | 18.543 µg/L 62% of the EPA limit 30 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 1/2 | SYR4 |
| Chromium | 18 µg/L 18% of the EPA limit 100 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 1/2 | SYR4 |
| Bromoform | 8.93 µg/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 13.6 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 1.475 µg/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 10 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 2.29 µg/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 7.095 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Monochloroacetic Acid | 6.355 µg/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 6.22 µg/L No EPA limit set Highest in the ZIP: GSWC - CALIPATRIA · 7,363 people · 2019 | 1/2 | SYR4 |
| Selenium | 5.74 µg/L 11% of the EPA limit 50 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 1/2 | SYR4 |
| Gross Beta Particle Activity | 4.58 pCi/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2017 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.2 µg/L No EPA limit set Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019
Highest in the ZIP: 2.18 µg/L — GSWC - CALIPATRIA · 7,363 people · 2019 | 2/2 | SYR4 |
| Tetrachloroethylene | 0.8400 µg/L 17% of the EPA limit 5 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 1/2 | SYR4 |
| Dichloromethane | 0.7500 µg/L 15% of the EPA limit 5 µg/L Highest in the ZIP: GSWC - CALIPATRIA · 7,363 people · 2019 | 1/2 | SYR4 |
| 1,2-DIBROMO-3-CHLOROPROPANE | 0.0643 µg/L 32% of the EPA limit 0.2000 µg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2019 | 1/2 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: COACHELLA VWD: COVE COMMUNITY · 270,000 people · 2024 | 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 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 92257
| Supplier | State | Population served |
|---|---|---|
| COACHELLA VWD: COVE COMMUNITY | CA | 270,000 |
| GSWC - CALIPATRIA | CA | 7,363 |
Frequently asked questions about ZIP 92257 tap water
Is the tap water in ZIP 92257 safe to drink?
EPA testing detected 26 contaminants across the water suppliers serving ZIP 92257. 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 92257?
2 public water suppliers report EPA drinking-water monitoring for ZIP 92257. Each is listed above with its population served.
What contaminants are in ZIP 92257's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Copper, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.