What was found in ZIP 92583
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 | 871000 µg/L 8710% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2017
Highest in the ZIP: 920000 µg/L — LAKE HEMET MWD · 52,913 people · 2019 | 2/3 | SYR4 |
| Nitrate | 9800 µg/L 98% of the EPA limit 10000 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 2/3 | SYR4 |
| Barium | 1018 µg/L 51% of the EPA limit 2000 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 3/3 | SYR4 |
| Fluoride | 380 µg/L 9.5% of the EPA limit 4000 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019
Highest in the ZIP: 500 µg/L — SAN JACINTO, CITY OF · 18,950 people · 2019 | 3/3 | SYR4 |
| TTHM | 60 µg/L 75% of the EPA limit 80 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019
Highest in the ZIP: 66.5 µg/L — SAN JACINTO, CITY OF · 18,950 people · 2019 | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 38 µg/L 63% of the EPA limit 60 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019
Highest in the ZIP: 40.35 µg/L — SAN JACINTO, CITY OF · 18,950 people · 2019 | 3/3 | SYR4 |
| Lithium | 39 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2024 | 2/3 | UCMR-5 |
| Monochloroacetic Acid | 33.3 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 3/3 | SYR4 |
| Chloroform | 15 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019
Highest in the ZIP: 32.8 µg/L — SAN JACINTO, CITY OF · 18,950 people · 2019 | 3/3 | SYR4 |
| Trichloroacetic Acid | 7.345 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019
Highest in the ZIP: 32.4 µg/L — SAN JACINTO, CITY OF · 18,950 people · 2019 | 2/3 | SYR4 |
| Copper | 30.915 µg/L 2.4% of the EPA limit 1300 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 1/3 | SYR4 |
| Dibromochloromethane | 23 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 3/3 | SYR4 |
| Bromodichloromethane | 18 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019
Highest in the ZIP: 21 µg/L — SAN JACINTO, CITY OF · 18,950 people · 2019 | 3/3 | SYR4 |
| Dichloroacetic Acid | 9.6 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019
Highest in the ZIP: 17 µg/L — SAN JACINTO, CITY OF · 18,950 people · 2019 | 3/3 | SYR4 |
| Bromoform | 15 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 3/3 | SYR4 |
| Combined Uranium | 14.8285 µg/L 49% of the EPA limit 30 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 3/3 | SYR4 |
| Selenium | 12 µg/L 24% of the EPA limit 50 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 2/3 | SYR4 |
| Cyanide | 10.05 µg/L 5% of the EPA limit 200 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 1/3 | SYR4 |
| Arsenic | 10 µg/L 100% of the EPA limit 10 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 2/3 | SYR4 |
| Dibromoacetic Acid | 9.135 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 3/3 | SYR4 |
| Gross Beta Particle Activity | 8.43 pCi/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 1/3 | SYR4 |
| Lead | 5.721 µg/L 38% of the EPA limit 15 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 1/3 | SYR4 |
| Monobromoacetic Acid | 4.98 µg/L No EPA limit set Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 3/3 | SYR4 |
| Tetrachloroethylene | 2.495 µg/L 50% of the EPA limit 5 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 1/3 | SYR4 |
| Chromium | 1.75 µg/L 1.8% of the EPA limit 100 µg/L Highest in the ZIP: LAKE HEMET MWD · 52,913 people · 2019 | 1/3 | SYR4 |
| Trichloroethylene | 1.13 µg/L 23% of the EPA limit 5 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 1/3 | SYR4 |
| Nitrite | 0.4750 µg/L 0% of the EPA limit 1000 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 1/3 | SYR4 |
| Cadmium | 0.3800 µg/L 7.6% of the EPA limit 5 µg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2019 | 1/3 | SYR4 |
| Lead | 0.0028 mg/L 19% of the EPA limit 0.0150 mg/L Main supplier: EASTERN MUNICIPAL WD · 666,581 people · 2025 | 3/3 | 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 92583
| Supplier | State | Population served |
|---|---|---|
| EASTERN MUNICIPAL WD | CA | 666,581 |
| LAKE HEMET MWD | CA | 52,913 |
| SAN JACINTO, CITY OF | CA | 18,950 |
Frequently asked questions about ZIP 92583 tap water
Is the tap water in ZIP 92583 safe to drink?
EPA testing detected 29 contaminants across the water suppliers serving ZIP 92583. 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 92583?
3 public water suppliers report EPA drinking-water monitoring for ZIP 92583. Each is listed above with its population served.
What contaminants are in ZIP 92583's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Barium, Fluoride, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.