What was found in ZIP 94588
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 | 4972 µg/L 50% of the EPA limit 10000 µg/L Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Barium | 326 µg/L 16% of the EPA limit 2000 µg/L Main supplier: CITY OF PLEASANTON · 76,689 people · 2018 | 1/1 | SYR4 |
| Fluoride | 160 µg/L 4% of the EPA limit 4000 µg/L Main supplier: CITY OF PLEASANTON · 76,689 people · 2018 | 1/1 | SYR4 |
| Glyphosate | 50 µg/L 7.1% of the EPA limit 700 µg/L Main supplier: CITY OF PLEASANTON · 76,689 people · 2018 | 1/1 | SYR4 |
| TTHM | 45.34 µg/L 57% of the EPA limit 80 µg/L Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 22.4 µg/L 37% of the EPA limit 60 µg/L Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Bromoform | 22.318 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Chloroform | 19.7325 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 17.832 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Lithium | 16.8 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2025 | 1/1 | UCMR-5 |
| Dichloroacetic Acid | 11.925 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 11.4 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 10.255 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 7.004 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Combined Uranium | 2.831 µg/L 9.4% of the EPA limit 30 µg/L Main supplier: CITY OF PLEASANTON · 76,689 people · 2018 | 1/1 | SYR4 |
| Monobromoacetic Acid | 1.99 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2019 | 1/1 | SYR4 |
| Gross Beta Particle Activity | 0.5290 pCi/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2018 | 1/1 | SYR4 |
| PFOS | 0.0260 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0220 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2025 | 1/1 | UCMR-5 |
| Pfba | 0.0063 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2025 | 1/1 | UCMR-5 |
| PFBS | 0.0061 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2025 | 1/1 | UCMR-5 |
| PFOA | 0.0051 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2025 | 1/1 | UCMR-5 |
| Pfpes | 0.0043 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2025 | 1/1 | UCMR-5 |
| Pfhxa | 0.0041 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2025 | 1/1 | UCMR-5 |
| Pfpea | 0.0041 µg/L No EPA limit set Main supplier: CITY OF PLEASANTON · 76,689 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: CITY OF PLEASANTON · 76,689 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 94588
| Supplier | State | Population served |
|---|---|---|
| CITY OF PLEASANTON | CA | 76,689 |
Frequently asked questions about ZIP 94588 tap water
Is the tap water in ZIP 94588 safe to drink?
EPA testing detected 26 contaminants across the water suppliers serving ZIP 94588. 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 94588?
1 public water supplier report EPA drinking-water monitoring for ZIP 94588. Each is listed above with its population served.
What contaminants are in ZIP 94588's water?
EPA monitoring detected Nitrate, Barium, Fluoride, Glyphosate, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.