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Tap water quality report

Oid #45

EPA monitoring tested this supplier for 47 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

47
contaminants tested
6
detected
144
people served
0
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Local government
Counties served
Stanislaus

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
3
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 1993-07-01 → 2000-04-04
MR Monitoring Archived 1981-10-01 → 1982-09-30
MR Monitoring Archived 1980-10-30 → 1981-10-29

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
Nitrate
3800 µg/L 38%
of the EPA limit 10000 µg/L
 22/22 SYR4 2012–2019
Carbon Tetrachloride
0.7175 µg/L 14%
of the EPA limit 5 µg/L
worst single sample: 0.7400 µg/L
4/12 SYR4 2014–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 3/3 LCR 2023
Nitrate-Nitrite
3170 µg/L 32%
of the EPA limit 10000 µg/L
worst single sample: 3300 µg/L
2/2 SYR4 2017
Barium
110 µg/L 5.5%
of the EPA limit 2000 µg/L
 1/2 SYR4 2014–2017
Fluoride
100 µg/L 2.5%
of the EPA limit 4000 µg/L
 1/3 SYR4 2014–2017
41 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicAtrazineBenzeneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCopperCadmiumChloroformChromiumDichloromethaneDibromochloromethaneEthylene DibromideEthylbenzeneLassoLeadMercuryNitriteSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MOODY, SCOT
Phone
209-840-5508
Email
smoody@oakdaleirrigation.com

Frequently asked questions about Oid #45

Is Oid #45 tap water safe to drink?

EPA monitoring detected 6 contaminants in Oid #45'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 Oid #45's water?

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

How many people does Oid #45 serve?

Oid #45 reports serving 144 people in California, per its EPA record.

Has Oid #45 had any water quality violations?

The EPA has 3 violations on file for Oid #45, 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.