What was found in ZIP 92074
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 |
|---|---|---|---|
| Fluoride | 342.6 µg/L 8.6% of the EPA limit 4000 µg/L Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Nitrate | 212 µg/L 2.1% of the EPA limit 10000 µg/L Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Barium | 105 µg/L 5.3% of the EPA limit 2000 µg/L Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| TTHM | 65.275 µg/L 82% of the EPA limit 80 µg/L Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Lithium | 48.7 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2025 | 1/1 | UCMR-5 |
| Total Haloacetic Acids (HAA5) | 28 µg/L 47% of the EPA limit 60 µg/L Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Chloroform | 21.875 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 21.825 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 21.4 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 13.96 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 9.7 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Bromoform | 9.1275 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 8.173 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Monochloroacetic Acid | 7.551 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 6.594 pCi/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2014 | 1/1 | SYR4 |
| Combined Uranium | 4.84846 µg/L 16% of the EPA limit 30 µg/L Main supplier: POWAY, CITY OF · 49,888 people · 2014 | 1/1 | SYR4 |
| Monobromoacetic Acid | 4.3445 µg/L No EPA limit set Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Dichloromethane | 2.45 µg/L 49% of the EPA limit 5 µg/L Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Arsenic | 2.134 µg/L 21% of the EPA limit 10 µg/L Main supplier: POWAY, CITY OF · 49,888 people · 2019 | 1/1 | SYR4 |
| Combined Radium (-226 And -228) | 0.4600 pCi/L 9.2% of the EPA limit 5 pCi/L Main supplier: POWAY, CITY OF · 49,888 people · 2012 | 1/1 | SYR4 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: POWAY, CITY OF · 49,888 people · 2025 | 1/1 | 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 92074
| Supplier | State | Population served |
|---|---|---|
| POWAY, CITY OF | CA | 49,888 |
Frequently asked questions about ZIP 92074 tap water
Is the tap water in ZIP 92074 safe to drink?
EPA testing detected 21 contaminants across the water suppliers serving ZIP 92074. 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 92074?
1 public water supplier report EPA drinking-water monitoring for ZIP 92074. Each is listed above with its population served.
What contaminants are in ZIP 92074's water?
EPA monitoring detected Fluoride, Nitrate, Barium, TTHM, Lithium, and others across this ZIP's suppliers. The full list with levels and sources is above.