What was found in ZIP 92027
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 | 2768.499999999999 µg/L 28% of the EPA limit 10000 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/2 | 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: 833.9999999999998 µg/L — ESCONDIDO, CITY OF · 137,044 people · 2019 | 2/2 | SYR4 |
| Chlorite | 452.79999999999995 µg/L 45% of the EPA limit 1000 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/2 | 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 | 2/2 | 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 | 2/2 | SYR4 |
| TTHM | 64.63 µg/L 81% of the EPA limit 80 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 69.25 µg/L — ESCONDIDO, CITY OF · 137,044 people · 2019 | 2/2 | SYR4 |
| Lithium | 65 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2023 | 2/2 | UCMR-5 |
| 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
Highest in the ZIP: 29 µg/L — ESCONDIDO, CITY OF · 137,044 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 26.30999999999999 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 24.95 pCi/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 18 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 24.25 µg/L — ESCONDIDO, CITY OF · 137,044 people · 2019 | 2/2 | SYR4 |
| Bromoform | 23.870000000000005 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/2 | 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: 23 µg/L — ESCONDIDO, CITY OF · 137,044 people · 2019 | 2/2 | SYR4 |
| Dichloroacetic Acid | 8.929 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 13.649999999999977 µg/L — ESCONDIDO, CITY OF · 137,044 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 11.35999999999999 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 2/2 | SYR4 |
| Bromate | 9.743999999999998 µg/L 97% of the EPA limit 10 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 4.577500000000001 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 9.479999999999995 µg/L — ESCONDIDO, CITY OF · 137,044 people · 2019 | 2/2 | SYR4 |
| Selenium | 6.798500000000001 µg/L 14% of the EPA limit 50 µg/L Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019 | 1/2 | SYR4 |
| Copper | 6.539999999999999 µg/L 0.5% of the EPA limit 1300 µg/L Highest in the ZIP: ESCONDIDO, CITY OF · 137,044 people · 2019 | 1/2 | 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: 5.249999999999998 µg/L — ESCONDIDO, CITY OF · 137,044 people · 2019 | 2/2 | 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 | 1/2 | 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 | 1/2 | SYR4 |
| Monobromoacetic Acid | 3.0649999999999995 µg/L No EPA limit set Main supplier: SAN DIEGO, CITY OF · 1,385,379 people · 2019
Highest in the ZIP: 3.8 µg/L — ESCONDIDO, CITY OF · 137,044 people · 2019 | 2/2 | 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 | 2/2 | 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 | 1/2 | 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 | 1/2 | SYR4 |
| Xylenes, Total | 0.2200 µg/L 0% of the EPA limit 10000 µg/L Highest in the ZIP: ESCONDIDO, CITY OF · 137,044 people · 2019 | 1/2 | SYR4 |
| 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: 0.0011 mg/L — ESCONDIDO, CITY OF · 137,044 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 92027
| Supplier | State | Population served |
|---|---|---|
| SAN DIEGO, CITY OF | CA | 1,385,379 |
| ESCONDIDO, CITY OF | CA | 137,044 |
Frequently asked questions about ZIP 92027 tap water
Is the tap water in ZIP 92027 safe to drink?
EPA testing detected 28 contaminants across the water suppliers serving ZIP 92027. 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 92027?
2 public water suppliers report EPA drinking-water monitoring for ZIP 92027. Each is listed above with its population served.
What contaminants are in ZIP 92027's water?
EPA monitoring detected Nitrate, Fluoride, Chlorite, Barium, Combined Uranium, and others across this ZIP's suppliers. The full list with levels and sources is above.