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Tap water quality report

Murphys, CA

EPA monitoring detected 14 contaminants across the 1 water supplier serving Murphys. 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.

1
water supplier
4,774
people served
14
contaminants found
California rankings Lead in California PFAS in California

What was found in Murphys'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-Nitrite
92000 µg/L 920%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Nitrate
164.98 µg/L 1.6%
of the EPA limit 10000 µg/L
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
TTHM
89 µg/L 111%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Chloroform
86 µg/L
No EPA limit set
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Lithium
50 µg/L
No EPA limit set
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2024
1/1 UCMR-5
Total Haloacetic Acids (HAA5)
34.86 µg/L 58%
of the EPA limit 60 µg/L
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Trichloroacetic Acid
28.384999999999998 µg/L
No EPA limit set
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Barium
11 µg/L 0.5%
of the EPA limit 2000 µg/L
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Copper
8.58 µg/L 0.7%
of the EPA limit 1300 µg/L
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Dichloroacetic Acid
8.560000000000002 µg/L
No EPA limit set
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Bromodichloromethane
4.547999999999999 µg/L
No EPA limit set
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Monochloroacetic Acid
4.045 µg/L
No EPA limit set
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Dibromochloromethane
2.7 µg/L
No EPA limit set
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 people · 2019
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: UNION PUBLIC UTILITY DISTRICT · 4,774 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. 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 Murphys

SupplierPopulation served
UNION PUBLIC UTILITY DISTRICT 4,774

Frequently asked questions about Murphys tap water

Is Murphys tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Murphys. 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 Murphys?

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

What contaminants are in Murphys's water?

The contaminants EPA monitoring detected in Murphys include Nitrate-Nitrite, Nitrate, TTHM, Chloroform, Lithium. 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.