What was found in ZIP 92019
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 | 483000 µg/L 4830% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Highest in the ZIP: HELIX WATER DISTRICT · 277,668 people · 2019 | 1/5 | SYR4 |
| Nitrate | 2768.5 µg/L 28% of the EPA limit 10000 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 6553 µg/L — Sycuan · 12,350 people · 2019 | 3/5 | SYR4 |
| Fluoride | 760 µg/L 19% of the EPA limit 4000 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 790 µg/L — HELIX WATER DISTRICT · 277,668 people · 2019 | 2/5 | SYR4 |
| Chlorite | 452.8 µg/L 45% of the EPA limit 1000 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 1/5 | SYR4 |
| Barium | 135 µg/L 6.8% of the EPA limit 2000 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/5 | SYR4 |
| Combined Uranium | 71.52 µg/L 238% of the EPA limit, at the 95th percentile of samples — 30 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 3/5 | SYR4 |
| Lithium | 65 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2023 | 5/5 | UCMR-5 |
| TTHM | 64.63 µg/L 81% of the EPA limit 80 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 5/5 | SYR4 |
| Dibromochloromethane | 26.31 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 4/5 | SYR4 |
| Gross Beta Particle Activity | 24.95 pCi/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 1/5 | SYR4 |
| Bromoform | 23.87 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 4/5 | SYR4 |
| Bromodichloromethane | 18 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 4/5 | SYR4 |
| Total Haloacetic Acids (HAA5) | 16.8 µg/L 28% of the EPA limit 60 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 5/5 | SYR4 |
| Chloroform | 15.2 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 15.5 µg/L — OTAY WATER DISTRICT · 238,008 people · 2019 | 4/5 | SYR4 |
| Gross Alpha, Excl. Radon And U | 12.5 pCi/L 83% of the EPA limit 15 pCi/L Highest in the ZIP: Sycuan · 12,350 people · 2017 | 1/5 | SYR4 |
| Dibromoacetic Acid | 11.36 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 4/5 | SYR4 |
| Bromate | 9.744 µg/L 97% of the EPA limit 10 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/5 | SYR4 |
| Dichloroacetic Acid | 8.929 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 4/5 | SYR4 |
| Monochloroacetic Acid | 2.5125 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 7.4 µg/L — PADRE DAM MWD · 93,980 people · 2019 | 3/5 | SYR4 |
| Copper | 7.2 µg/L 0.6% of the EPA limit 1300 µg/L Highest in the ZIP: Sycuan · 12,350 people · 2018 | 1/5 | SYR4 |
| Selenium | 6.7985 µg/L 14% of the EPA limit 50 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 1/5 | SYR4 |
| Trichloroacetic Acid | 4.5775 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 4/5 | SYR4 |
| Trichloroethylene | 4.5 µg/L 90% of the EPA limit 5 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 1/5 | SYR4 |
| Tetrachloroethylene | 4.335 µg/L 87% of the EPA limit 5 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 1/5 | SYR4 |
| Monobromoacetic Acid | 3.065 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 3.945 µg/L — PADRE DAM MWD · 93,980 people · 2019 | 4/5 | SYR4 |
| Arsenic | 3.3 µg/L 33% of the EPA limit 10 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/5 | SYR4 |
| Mercury | 1.9 µg/L 95% of the EPA limit 2 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/5 | SYR4 |
| Lead | 1.3 µg/L 8.7% of the EPA limit 15 µg/L Highest in the ZIP: Sycuan · 12,350 people · 2018 | 1/5 | SYR4 |
| cis-1,2-Dichloroethylene | 0.9525 µg/L 1.4% of the EPA limit 70 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 1/5 | SYR4 |
| Pfba | 0.0058 µg/L No EPA limit set Highest in the ZIP: PADRE DAM MWD · 93,980 people · 2023 | 1/5 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2023
Highest in the ZIP: 0.0030 mg/L — Sycuan · 12,350 people · 2025 | 5/5 | 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 92019
| Supplier | State | Population served |
|---|---|---|
| SAN DIEGO, CITY OF | CA | 1,385,379 |
| HELIX WATER DISTRICT | CA | 277,668 |
| OTAY WATER DISTRICT | CA | 238,008 |
| PADRE DAM MWD | CA | 93,980 |
| Sycuan | CA | 12,350 |
Frequently asked questions about ZIP 92019 tap water
Is the tap water in ZIP 92019 safe to drink?
EPA testing detected 31 contaminants across the water suppliers serving ZIP 92019. 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 92019?
5 public water suppliers report EPA drinking-water monitoring for ZIP 92019. Each is listed above with its population served.
What contaminants are in ZIP 92019's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Chlorite, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.