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Tap water quality report

Rau Dairy

EPA monitoring tested this supplier for 42 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

42
contaminants tested
10
detected
105
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Fresno

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
55
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2015-10-01
MR Monitoring Resolved 2015-10-01
Other Monitoring Resolved 2015-07-01
MR Monitoring Resolved 2015-04-01 → 2015-04-30
MR Monitoring Resolved 2015-04-01 → 2015-04-30
Other Monitoring Resolved 2013-07-01
Other Monitoring Resolved 2013-07-01
MR Monitoring Resolved 2011-12-01 → 2011-12-31
MR Monitoring Resolved 2011-12-01 → 2011-12-31
MR Monitoring Resolved 2011-07-01 → 2011-07-31

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
3700 µg/L 37%
of the EPA limit 10000 µg/L
 18/20 SYR4 2012–2019
Arsenic
11 µg/L 110%
of the EPA limit, in the worst sample — 10 µg/L
 14/19 SYR4 2013–2019
Lead
0.0 mg/L 0%
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
 2/3 SYR4 2013–2019
Antimony, Total
3.4 µg/L 57%
of the EPA limit 6 µg/L
 1/3 SYR4 2013–2019
Barium
4.5 µg/L 0.2%
of the EPA limit 2000 µg/L
 1/3 SYR4 2013–2019
Copper
5.6 µg/L 0.4%
of the EPA limit 1300 µg/L
 1/3 SYR4 2013–2019
Cadmium
0.2500 µg/L 5%
of the EPA limit 5 µg/L
 1/3 SYR4 2013–2019
Chromium
3.7 µg/L 3.7%
of the EPA limit 100 µg/L
 1/3 SYR4 2013–2019
Nitrate-Nitrite
3700 µg/L 37%
of the EPA limit 10000 µg/L
 1/1 SYR4 2019
32 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAtrazineBenzeneBeryllium, TotalChlorobenzeneCarbon TetrachlorideDichloromethaneEthylene DibromideEthylbenzeneLassoLeadMercuryNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
REID, MICHAEL
Phone
559-960-3134
Email
mseanreid@gmail.com

Frequently asked questions about Rau Dairy

Is Rau Dairy tap water safe to drink?

EPA monitoring detected 10 contaminants in Rau Dairy'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 Rau Dairy's water?

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

How many people does Rau Dairy serve?

Rau Dairy reports serving 105 people in California, per its EPA record.

Has Rau Dairy had any water quality violations?

The EPA has 55 violations on file for Rau Dairy, 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.