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Tap water quality report

Rawhide Mutual Water Company

EPA monitoring tested this supplier for 52 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

52
contaminants tested
14
detected
269
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Tuolumne

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
11
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Resolved 2025-04-01 → 2025-04-30
MON Monitoring Resolved 2025-04-01 → 2025-04-30
MR Monitoring Resolved 2001-01-01 → 2001-12-31
MR Monitoring Resolved 2001-01-01 → 2001-12-31
MR Monitoring Resolved 2001-01-01 → 2001-12-31
Other Monitoring Archived 1983-06-01 → 1983-06-30
Other Monitoring Archived 1982-12-01 → 1982-12-31
Other Monitoring Archived 1982-11-01 → 1982-11-30
Other Monitoring Archived 1982-10-01 → 1982-10-31
MR Monitoring Archived 1981-10-01 → 1982-09-30

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
3553.66 µg/L 36%
of the EPA limit 10000 µg/L
worst single sample: 4474.8 µg/L
32/32 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2024
Arsenic
2.1995 µg/L 22%
of the EPA limit 10 µg/L
worst single sample: 2.21 µg/L
2/6 SYR4 2012–2018
Barium
95.21 µg/L 4.8%
of the EPA limit 2000 µg/L
worst single sample: 97.4 µg/L
2/6 SYR4 2012–2018
Bromodichloromethane
3.2435 µg/L
No EPA limit set
worst single sample: 3.31 µg/L
2/2 SYR4 2014–2017
Chloroform
4.1015 µg/L
No EPA limit set
worst single sample: 4.16 µg/L
2/2 SYR4 2014–2017
Dibromochloromethane
1.514 µg/L
No EPA limit set
worst single sample: 1.52 µg/L
2/2 SYR4 2014–2017
Dichloroacetic Acid
4.341 µg/L
No EPA limit set
worst single sample: 4.44 µg/L
2/2 SYR4 2014–2017
TTHM
8.8685 µg/L 11%
of the EPA limit 80 µg/L
worst single sample: 9 µg/L
2/2 SYR4 2014–2017
Total Haloacetic Acids (HAA5)
15.377 µg/L 26%
of the EPA limit 60 µg/L
worst single sample: 16 µg/L
2/2 SYR4 2014–2017
Trichloroacetic Acid
1.973 µg/L
No EPA limit set
worst single sample: 2.02 µg/L
2/2 SYR4 2014–2017
Chromium
11.4 µg/L 11%
of the EPA limit 100 µg/L
 1/6 SYR4 2012–2018
Dibromoacetic Acid
3.93 µg/L
No EPA limit set
 1/2 SYR4 2014–2017
Monobromoacetic Acid
5.6 µg/L
No EPA limit set
 1/2 SYR4 2014–2017
38 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalAtrazineBenzeneBeryllium, TotalBromoformChlorobenzeneCopperCadmiumCarbon TetrachlorideDichloromethaneEthylene DibromideEthylbenzeneFluorideLassoLeadMercuryMonochloroacetic AcidNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TROWBRIDGE, CORY
Phone
209-743-8126
Email
rawhidemhp@gmail.com

Frequently asked questions about Rawhide Mutual Water Company

Is Rawhide Mutual Water Company tap water safe to drink?

EPA monitoring detected 14 contaminants in Rawhide Mutual Water Company's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Rawhide Mutual Water Company's water?

EPA monitoring detected Nitrate, Lead, Arsenic, Barium, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Rawhide Mutual Water Company serve?

Rawhide Mutual Water Company reports serving 269 people in California, per its EPA record.

Has Rawhide Mutual Water Company had any water quality violations?

The EPA has 11 violations on file for Rawhide Mutual Water Company, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.