Tap WaterIndex

← California

Tap water quality report

Elk Creek, CA

EPA monitoring detected 22 contaminants across the 2 water suppliers serving Elk Creek. 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
362
people served
22
contaminants found
California rankings Lead in California PFAS in California

What was found in Elk Creek'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
300 µg/L 3%
of the EPA limit 10000 µg/L
 2/2 SYR4
Barium
121 µg/L 6.1%
of the EPA limit 2000 µg/L
 2/2 SYR4
TTHM
93.7 µg/L 117%
of the EPA limit, in the worst sample — 80 µg/L
 2/2 SYR4
Chloroform
71.4 µg/L
No EPA limit set
 1/2 SYR4
Fluoride
69 µg/L 1.7%
of the EPA limit 4000 µg/L
 1/2 SYR4
Total Haloacetic Acids (HAA5)
54 µg/L 90%
of the EPA limit 60 µg/L
 2/2 SYR4
Trichloroacetic Acid
33 µg/L
No EPA limit set
 1/2 SYR4
Dichloroacetic Acid
30 µg/L
No EPA limit set
 1/2 SYR4
Bromodichloromethane
29.8 µg/L
No EPA limit set
 1/2 SYR4
Dibromochloromethane
28.6 µg/L
No EPA limit set
 1/2 SYR4
Bromoform
11 µg/L
No EPA limit set
 1/2 SYR4
Dibromoacetic Acid
9 µg/L
No EPA limit set
 1/2 SYR4
Arsenic
8 µg/L 80%
of the EPA limit 10 µg/L
 1/2 SYR4
Selenium
3 µg/L 6%
of the EPA limit 50 µg/L
 1/2 SYR4
Asbestos
2.6 MFL 37%
of the EPA limit 7 MFL
 1/2 SYR4
Gross Alpha, Excl. Radon And U
2.30119 pCi/L 15%
of the EPA limit 15 pCi/L
 1/2 SYR4
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/2 SYR4
Monobromoacetic Acid
2 µg/L
No EPA limit set
 1/2 SYR4
Monochloroacetic Acid
2 µg/L
No EPA limit set
 1/2 SYR4
Lead
1 µg/L 6.7%
of the EPA limit 15 µg/L
 1/2 SYR4
Combined Radium (-226 And -228)
0.6250 pCi/L 13%
of the EPA limit 5 pCi/L
 1/2 SYR4
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
 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 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 Elk Creek

SupplierPopulation served
ELK CREEK COMMUNITY S.D. 212
Grindstone Rancheria 150

Frequently asked questions about Elk Creek tap water

Is Elk Creek tap water safe to drink?

EPA testing detected 22 contaminants in the water serving Elk Creek. 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 Elk Creek?

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

What contaminants are in Elk Creek's water?

The contaminants EPA monitoring detected in Elk Creek include Nitrate, Barium, TTHM, Chloroform, Fluoride. 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.