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Tap water quality report

Running Springs, CA

EPA monitoring detected 26 contaminants across the 2 water suppliers serving Running Springs. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
5,638
people served
26
contaminants found
California rankings Lead in California PFAS in California

What was found in Running Springs'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
Nitrate-Nitrite
980000 µg/L 9800%
of the EPA limit, in the worst sample — 10000 µg/L
 1/2 SYR4
Nitrate
1700 µg/L 17%
of the EPA limit 10000 µg/L
 1/2 SYR4
Fluoride
230 µg/L 5.8%
of the EPA limit 4000 µg/L
 2/2 SYR4
Lithium
106 µg/L
No EPA limit set
 1/2 UCMR-5
Combined Uranium
92.38 µg/L 308%
of the EPA limit, in the worst sample — 30 µg/L
 2/2 SYR4
TTHM
57.8 µg/L 72%
of the EPA limit 80 µg/L
 1/2 SYR4
Bromoform
37.9 µg/L
No EPA limit set
 1/2 SYR4
Dibromochloromethane
14.1 µg/L
No EPA limit set
 1/2 SYR4
Arsenic
9.6 µg/L 96%
of the EPA limit 10 µg/L
 1/2 SYR4
Chloroform
7.2 µg/L
No EPA limit set
 1/2 SYR4
Dibromoacetic Acid
6.6 µg/L
No EPA limit set
 1/2 SYR4
Total Haloacetic Acids (HAA5)
6.6 µg/L 11%
of the EPA limit 60 µg/L
 1/2 SYR4
Bromodichloromethane
5.2 µg/L
No EPA limit set
 1/2 SYR4
Dichloroacetic Acid
1.1 µg/L
No EPA limit set
 1/2 SYR4
Dichloromethane
0.9600 µg/L 19%
of the EPA limit 5 µg/L
 1/2 SYR4
PFOS
0.2365 µg/L
No EPA limit set
 1/2 UCMR-5
PFHXS
0.0955 µg/L
No EPA limit set
 1/2 UCMR-5
Pfhxa
0.0190 µg/L
No EPA limit set
 1/2 UCMR-5
PFOA
0.0159 µg/L
No EPA limit set
 1/2 UCMR-5
Pfpea
0.0144 µg/L
No EPA limit set
 1/2 UCMR-5
Pfhpa
0.0128 µg/L
No EPA limit set
 1/2 UCMR-5
PFBS
0.0117 µg/L
No EPA limit set
 1/2 UCMR-5
Pfpes
0.0108 µg/L
No EPA limit set
 1/2 UCMR-5
Lead
0.0097 mg/L 64%
of the EPA limit 0.0150 mg/L
 2/2 LCR
Pfba
0.0056 µg/L
No EPA limit set
 1/2 UCMR-5
Pfhps
0.0055 µg/L
No EPA limit set
 1/2 UCMR-5
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 Running Springs

SupplierPopulation served
RUNNING SPRINGS WATER DISTRICT 5,268
SMILEY PARK COUNTRY CLUB 370

Frequently asked questions about Running Springs tap water

Is Running Springs tap water safe to drink?

EPA testing detected 26 contaminants in the water serving Running Springs. 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 Running Springs?

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

What contaminants are in Running Springs's water?

The contaminants EPA monitoring detected in Running Springs include Nitrate-Nitrite, Nitrate, Fluoride, Lithium, Combined Uranium. 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.