What was found in ZIP 95448
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 | 1800 µg/L 18% of the EPA limit 10000 µg/L Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Fluoride | 200 µg/L 5% of the EPA limit 4000 µg/L Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Barium | 151 µg/L 7.6% of the EPA limit 2000 µg/L Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| TTHM | 53.868 µg/L 67% of the EPA limit 80 µg/L Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Chloroform | 34.673 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Total Haloacetic Acids (HAA5) | 32.45 µg/L 54% of the EPA limit 60 µg/L Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Trichloroacetic Acid | 17.98 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Dichloroacetic Acid | 15.295 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Bromodichloromethane | 14.275 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Dibromochloromethane | 9.276 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Dibromoacetic Acid | 3.35 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| Bromoform | 3.1135 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019 | 1/1 | SYR4 |
| PFBS | 0.0052 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2025 | 1/1 | UCMR-5 |
| PFHXS | 0.0045 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2025 | 1/1 | UCMR-5 |
| Pfdoa | 0.0031 µg/L No EPA limit set Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2025 | 1/1 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2023 | 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 95448
| Supplier | State | Population served |
|---|---|---|
| HEALDSBURG, CITY OF | CA | 10,985 |
Frequently asked questions about ZIP 95448 tap water
Is the tap water in ZIP 95448 safe to drink?
EPA testing detected 16 contaminants across the water suppliers serving ZIP 95448. 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 95448?
1 public water supplier report EPA drinking-water monitoring for ZIP 95448. Each is listed above with its population served.
What contaminants are in ZIP 95448's water?
EPA monitoring detected Nitrate, Fluoride, Barium, TTHM, Chloroform, and others across this ZIP's suppliers. The full list with levels and sources is above.