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Tap water quality report

Tucker Acres Mutual Water Co.

EPA monitoring tested this supplier for 67 contaminants and detected 7. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

67
contaminants tested
7
detected
200
people served
2
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Napa

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.

2
health-based violations
33
violations on file
3
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MCL Health-based Resolved 2014-07-01 → 2014-07-31
MR Monitoring Addressed 2026-01-01
MR Monitoring Addressed 2024-10-01
MR Monitoring Resolved 2013-05-01 → 2013-06-30
MR Monitoring Resolved 2013-05-01 → 2013-06-30
MR Monitoring Resolved 2012-09-01 → 2012-09-30
MR Monitoring Resolved 2012-09-01 → 2012-09-30
MR Monitoring Resolved 2008-10-01 → 2008-12-31
MR Monitoring Resolved 2008-10-01 → 2008-12-31

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
11 µg/L 110%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
 20/20 SYR4 2012–2019
Lead
0.0140 mg/L 93%
of the EPA limit 0.0150 mg/L
 9/9 LCR 2026
Fluoride
189.5 µg/L 4.7%
of the EPA limit 4000 µg/L
worst single sample: 190 µg/L
2/4 SYR4 2013–2019
TTHM
2.33 µg/L 2.9%
of the EPA limit 80 µg/L
worst single sample: 2.4 µg/L
2/2 SYR4 2014–2018
Barium
49 µg/L 2.5%
of the EPA limit 2000 µg/L
 1/4 SYR4 2013–2019
Chloroform
1.5 µg/L
No EPA limit set
 1/1 SYR4 2018
Thallium, Total
0.1200 µg/L 6%
of the EPA limit 2 µg/L
 1/4 SYR4 2013–2019
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNitrateNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KURTZ, JOEL
Phone
510-290-9859
Email
[email protected]

Frequently asked questions about Tucker Acres Mutual Water Co.

Is Tucker Acres Mutual Water Co. tap water safe to drink?

EPA monitoring detected 7 contaminants in Tucker Acres 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 Tucker Acres Mutual Water Co.'s water?

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

How many people does Tucker Acres Mutual Water Co. serve?

Tucker Acres Mutual Water Co. reports serving 200 people in California, per its EPA record.

Has Tucker Acres Mutual Water Co. had any water quality violations?

The EPA has 33 violations on file for Tucker Acres Mutual Water Co., of which 2 are health-based (a contaminant limit or required treatment was breached) and 3 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.