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Tap water quality report

Healdsburg, CA

EPA monitoring detected 19 contaminants across the 5 water suppliers serving Healdsburg. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

5
water suppliers
11,619
people served
19
contaminants found
California rankings Lead in California PFAS in California

What was found in Healdsburg's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
1800 µg/L 18%
of the EPA limit 10000 µg/L
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
Highest in the city: 7515 µg/L — RUSSIAN RIVER MUTUAL WATER CO. · 87 people · 2019
4/5 SYR4
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
Highest in the city: 299 µg/L — COLONIAL PARK · 342 people · 2014
5/5 SYR4
Barium
151 µg/L 7.6%
of the EPA limit 2000 µg/L
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
3/5 SYR4
TTHM
53.868 µg/L 67%
of the EPA limit 80 µg/L
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
3/5 SYR4
Chloroform
34.673 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
3/5 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
3/5 SYR4
Arsenic
19.2 µg/L 192%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
Highest in the city: COLONIAL PARK · 342 people · 2019
1/5 SYR4
Trichloroacetic Acid
17.98 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
3/5 SYR4
Dibromochloromethane
9.276 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
Highest in the city: 16.62 µg/L — COLONIAL PARK · 342 people · 2018
3/5 SYR4
Dichloroacetic Acid
15.295 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
3/5 SYR4
Bromodichloromethane
14.275 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
3/5 SYR4
Bromoform
3.1135 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
Highest in the city: 13.3385 µg/L — COLONIAL PARK · 342 people · 2018
3/5 SYR4
Monochloroacetic Acid
3.885 µg/L
No EPA limit set
Highest in the city: RIO LINDO ADVENTIST ACADEMY · 178 people · 2019
1/5 SYR4
Dibromoacetic Acid
3.35 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2019
Highest in the city: 3.8265 µg/L — COLONIAL PARK · 342 people · 2018
3/5 SYR4
Chromium
1.9 µg/L 1.9%
of the EPA limit 100 µg/L
Highest in the city: RUSSIAN RIVER MUTUAL WATER CO. · 87 people · 2012
1/5 SYR4
PFBS
0.0052 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2025
1/5 UCMR-5
PFHXS
0.0045 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2025
1/5 UCMR-5
Pfdoa
0.0031 µg/L
No EPA limit set
Main supplier: HEALDSBURG, CITY OF · 10,985 people · 2025
1/5 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
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. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Healdsburg

SupplierPopulation served
HEALDSBURG, CITY OF 10,985
COLONIAL PARK 342
RIO LINDO ADVENTIST ACADEMY 178
RUSSIAN RIVER MUTUAL WATER CO. 87
ALEXANDER VALLEY ACRES WATER COMPANY 27

Frequently asked questions about Healdsburg tap water

Is Healdsburg tap water safe to drink?

EPA testing detected 19 contaminants in the water serving Healdsburg. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Healdsburg?

5 public water suppliers report drinking-water monitoring for Healdsburg, California to the EPA. Each is listed above with its population served.

What contaminants are in Healdsburg's water?

The contaminants EPA monitoring detected in Healdsburg include Nitrate, Fluoride, Barium, TTHM, Chloroform. The full list, with the level at the main supplier and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.