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Tap water quality report

Comstock Mutual Water Company

EPA monitoring tested this supplier for 63 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

63
contaminants tested
12
detected
100
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
San Benito

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
MR Monitoring Resolved 2009-08-01 → 2009-08-31
MR Monitoring Resolved 2009-08-01 → 2009-08-31
MR Monitoring Resolved 2005-08-01 → 2005-08-31
MR Monitoring Resolved 2005-07-01 → 2005-09-30
MR Monitoring Resolved 2005-01-01 → 2005-12-31
MR Monitoring Resolved 2004-10-01 → 2004-12-31
MR Monitoring Resolved 2004-07-01 → 2004-09-30
MR Monitoring Resolved 2004-04-01 → 2004-06-30
MR Monitoring Resolved 2004-01-01 → 2004-12-31
MR Monitoring Resolved 2004-01-01 → 2004-03-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
2200 µg/L 22%
of the EPA limit 10000 µg/L
 24/26 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 20/20 LCR 2023
Bromoform
13 µg/L
No EPA limit set
 3/3 SYR4 2015–2019
Dibromochloromethane
5.3 µg/L
No EPA limit set
 3/3 SYR4 2015–2019
TTHM
17 µg/L 21%
of the EPA limit 80 µg/L
 3/3 SYR4 2015–2019
Barium
130 µg/L 6.5%
of the EPA limit 2000 µg/L
 2/2 SYR4 2015–2018
Dibromoacetic Acid
3.8 µg/L
No EPA limit set
 2/2 SYR4 2016–2019
Fluoride
270 µg/L 6.8%
of the EPA limit 4000 µg/L
 2/2 SYR4 2015–2018
Nitrate-Nitrite
1900 µg/L 19%
of the EPA limit 10000 µg/L
 2/2 SYR4 2015–2018
Total Haloacetic Acids (HAA5)
4.9 µg/L 8.2%
of the EPA limit 60 µg/L
 2/2 SYR4 2016–2019
Bromodichloromethane
2.4 µg/L
No EPA limit set
 1/3 SYR4 2015–2019
Dichloroacetic Acid
1.1 µg/L
No EPA limit set
 1/2 SYR4 2016–2019
51 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCadmiumCarbofuranCarbon TetrachlorideChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylbenzeneLassoLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CAMACHO, TIM
Phone
408-204-8121
Email
Timc4444@sbcglobal.net

Frequently asked questions about Comstock Mutual Water Company

Is Comstock Mutual Water Company tap water safe to drink?

EPA monitoring detected 12 contaminants in Comstock 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 Comstock Mutual Water Company's water?

EPA monitoring detected Nitrate, Lead, Bromoform, Dibromochloromethane, TTHM, and others. The full list with the level and data source for each is above.

How many people does Comstock Mutual Water Company serve?

Comstock Mutual Water Company reports serving 100 people in California, per its EPA record.

Has Comstock Mutual Water Company had any water quality violations?

The EPA has 11 violations on file for Comstock 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.