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Tap water quality report

Green Mountain Water Company

EPA monitoring tested this supplier for 42 contaminants and detected 4. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

42
contaminants tested
4
detected
80
people served
3
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Santa Clara

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.

3
health-based violations
21
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2003-08-01 → 2003-08-31
MCL Health-based Resolved 1999-11-01 → 1999-11-30
MCL Health-based Resolved 1999-11-01 → 1999-11-30
MR Monitoring Resolved 2023-01-01 → 2023-12-31
MR Monitoring Resolved 2023-01-01 → 2023-12-31
MR Monitoring Resolved 2020-01-01 → 2020-03-31
MR Monitoring Resolved 2020-01-01 → 2020-03-31
MR Monitoring Resolved 1995-10-01 → 1995-10-31
MR Monitoring Resolved 1995-10-01 → 1995-10-31
MR Monitoring Resolved 1993-07-01 → 2000-03-01

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
4300 µg/L 43%
of the EPA limit 10000 µg/L
 22/22 SYR4 2012–2019
Lead
0.0060 mg/L 40%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Fluoride
150 µg/L 3.8%
of the EPA limit 4000 µg/L
 1/3 SYR4 2012–2018
Nitrate-Nitrite
900 µg/L 9%
of the EPA limit 10000 µg/L
 1/1 SYR4 2018
38 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4-DAntimony, TotalArsenicAtrazineBariumBenzeneBeryllium, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylbenzeneLassoLeadMercuryNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
FERNANDEZ, MIKE
Phone
408-966-9932
Email
photomjf@aol.com

Frequently asked questions about Green Mountain Water Company

Is Green Mountain Water Company tap water safe to drink?

EPA monitoring detected 4 contaminants in Green Mountain 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 Green Mountain Water Company's water?

EPA monitoring detected Nitrate, Lead, Fluoride, Nitrate-Nitrite. The full list with the level and data source for each is above.

How many people does Green Mountain Water Company serve?

Green Mountain Water Company reports serving 80 people in California, per its EPA record.

Has Green Mountain Water Company had any water quality violations?

The EPA has 21 violations on file for Green Mountain Water Company, of which 3 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.