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Cedar Valley Mutual Water Co

EPA monitoring tested this supplier for 51 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

51
contaminants tested
7
detected
137
people served
66
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Madera

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.

66
health-based violations
76
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-04-01 → 2025-06-30
MCL Health-based Archived 2025-01-01 → 2025-03-31
TT Health-based Unaddressed 2024-10-17
MCL Health-based Archived 2024-10-01 → 2024-12-31
MCL Health-based Archived 2024-07-01 → 2024-09-30
MCL Health-based Archived 2024-04-01 → 2024-06-30
MCL Health-based Archived 2024-01-01 → 2024-03-31
MCL Health-based Archived 2022-10-01 → 2022-12-31

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
Arsenic
23.764 µg/L 238%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 26.91 µg/L
25/25 SYR4 2013–2019
Fluoride
428.5 µg/L 11%
of the EPA limit 4000 µg/L
worst single sample: 430 µg/L
4/4 SYR4 2013–2019
Lead
0.00081 mg/L 5.4%
of the EPA limit 0.0150 mg/L
 4/4 LCR 2025
Combined Uranium
9.6403 µg/L 32%
of the EPA limit 30 µg/L
worst single sample: 9.685 µg/L
3/3 SYR4 2013–2019
Antimony, Total
1.092 µg/L 18%
of the EPA limit 6 µg/L
 1/4 SYR4 2013–2019
Copper
1.768 µg/L 0.1%
of the EPA limit 1300 µg/L
 1/4 SYR4 2013–2019
Lead
11.4 µg/L 76%
of the EPA limit 15 µg/L
 1/2 SYR4 2013
44 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAtrazineBariumBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCadmiumCarbon TetrachlorideChloroformChromiumDichloromethaneDibromoacetic AcidDibromochloromethaneDichloroacetic AcidEthylbenzeneMercuryMonobromoacetic AcidMonochloroacetic AcidNitrateNitrate-NitriteNitriteSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PELTON, JOHN
Phone
559-250-4086
Email
ppelton@yahoo.com

Frequently asked questions about Cedar Valley Mutual Water Co

Is Cedar Valley Mutual Water Co tap water safe to drink?

EPA monitoring detected 7 contaminants in Cedar Valley Mutual Water Co'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 Cedar Valley Mutual Water Co's water?

EPA monitoring detected Arsenic, Fluoride, Lead, Combined Uranium, Antimony, Total, and others. The full list with the level and data source for each is above.

How many people does Cedar Valley Mutual Water Co serve?

Cedar Valley Mutual Water Co reports serving 137 people in California, per its EPA record.

Has Cedar Valley Mutual Water Co had any water quality violations?

The EPA has 76 violations on file for Cedar Valley Mutual Water Co, of which 66 are health-based (a contaminant limit or required treatment was breached) and 2 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.