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Tap water quality report

Sausalito, CA

EPA monitoring detected 11 contaminants across the 1 water supplier serving Sausalito. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

1
water supplier
18,447
people served
11
contaminants found
California rankings Lead in California PFAS in California

What was found in Sausalito's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
TTHM
91 µg/L 114%
of the EPA limit, in the worst sample — 80 µg/L
 1/1 SYR4
Total Haloacetic Acids (HAA5)
85 µg/L 142%
of the EPA limit, in the worst sample — 60 µg/L
 1/1 SYR4
Chloroform
82 µg/L
No EPA limit set
 1/1 SYR4
Dichloroacetic Acid
49 µg/L
No EPA limit set
 1/1 SYR4
Trichloroacetic Acid
28 µg/L
No EPA limit set
 1/1 SYR4
Bromodichloromethane
16 µg/L
No EPA limit set
 1/1 SYR4
Monochloroacetic Acid
6.8 µg/L
No EPA limit set
 1/1 SYR4
Dibromochloromethane
5.4 µg/L
No EPA limit set
 1/1 SYR4
Monobromoacetic Acid
1.4 µg/L
No EPA limit set
 1/1 SYR4
Dibromoacetic Acid
1.3 µg/L
No EPA limit set
 1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — 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 Sausalito

SupplierPopulation served
NPS GGNRA 18,447

Frequently asked questions about Sausalito tap water

Is Sausalito tap water safe to drink?

EPA testing detected 11 contaminants in the water serving Sausalito. 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 Sausalito?

1 public water supplier report drinking-water monitoring for Sausalito, California to the EPA. Each is listed above with its population served.

What contaminants are in Sausalito's water?

The contaminants EPA monitoring detected in Sausalito include TTHM, Total Haloacetic Acids (HAA5), Chloroform, Dichloroacetic Acid, Trichloroacetic Acid. The full list, with the highest level found 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.