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Tap water quality report

Brisbane, CA

EPA monitoring detected 17 contaminants across the 2 water suppliers serving Brisbane. 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.

2
water suppliers
4,874
people served
17
contaminants found
California rankings Lead in California PFAS in California

What was found in Brisbane'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
TTHM
49.095 µg/L 61%
of the EPA limit 80 µg/L
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
Highest in the city: 52.519999999999996 µg/L — GUADALUPE VALLEY MID · 1,472 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
51.805 µg/L 86%
of the EPA limit 60 µg/L
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
2/2 SYR4
Chloroform
47.16 µg/L
No EPA limit set
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
Highest in the city: 49.17 µg/L — GUADALUPE VALLEY MID · 1,472 people · 2019
2/2 SYR4
Trichloroacetic Acid
27.759999999999998 µg/L
No EPA limit set
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
2/2 SYR4
Dichloroacetic Acid
27.479999999999997 µg/L
No EPA limit set
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
2/2 SYR4
Bromodichloromethane
4.803000000000002 µg/L
No EPA limit set
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
Highest in the city: 5.603999999999997 µg/L — GUADALUPE VALLEY MID · 1,472 people · 2019
2/2 SYR4
Monochloroacetic Acid
2.9175 µg/L
No EPA limit set
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
2/2 SYR4
Dibromochloromethane
2.4199999999999995 µg/L
No EPA limit set
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
Highest in the city: 2.705 µg/L — GUADALUPE VALLEY MID · 1,472 people · 2019
2/2 SYR4
Dibromoacetic Acid
2.4159999999999995 µg/L
No EPA limit set
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
2/2 SYR4
Monobromoacetic Acid
1.139 µg/L
No EPA limit set
Main supplier: CITY OF BRISBANE · 3,402 people · 2019
2/2 SYR4
PFOA
0.0096 µg/L
No EPA limit set
Highest in the city: GUADALUPE VALLEY MID · 1,472 people · 2023
1/2 UCMR-5
PFOS
0.0083 µg/L
No EPA limit set
Highest in the city: GUADALUPE VALLEY MID · 1,472 people · 2023
1/2 UCMR-5
Pfhpa
0.0043 µg/L
No EPA limit set
Highest in the city: GUADALUPE VALLEY MID · 1,472 people · 2023
1/2 UCMR-5
Pfhxa
0.0042 µg/L
No EPA limit set
Highest in the city: GUADALUPE VALLEY MID · 1,472 people · 2023
1/2 UCMR-5
Pfpea
0.0041 µg/L
No EPA limit set
Highest in the city: GUADALUPE VALLEY MID · 1,472 people · 2023
1/2 UCMR-5
PFHXS
0.0034 µg/L
No EPA limit set
Highest in the city: GUADALUPE VALLEY MID · 1,472 people · 2023
1/2 UCMR-5
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
Main supplier: CITY OF BRISBANE · 3,402 people · 2025
2/2 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 Brisbane

SupplierPopulation served
CITY OF BRISBANE 3,402
GUADALUPE VALLEY MID 1,472

Frequently asked questions about Brisbane tap water

Is Brisbane tap water safe to drink?

EPA testing detected 17 contaminants in the water serving Brisbane. 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 Brisbane?

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

What contaminants are in Brisbane's water?

The contaminants EPA monitoring detected in Brisbane include TTHM, Total Haloacetic Acids (HAA5), Chloroform, Trichloroacetic Acid, Dichloroacetic Acid. 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.