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Tap water quality report

Oak Haven Association

EPA monitoring tested this supplier for 53 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

53
contaminants tested
11
detected
120
people served
3
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Riverside

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 2002-07-01 → 2002-07-31
MCL Health-based Resolved 2002-07-01 → 2002-07-31
MCL Health-based Resolved 2002-07-01 → 2002-07-31
Other Monitoring Resolved 2007-07-01
Other Monitoring Resolved 2007-07-01
Other Monitoring Resolved 2006-07-01
Other Monitoring Resolved 2004-07-01
Other Monitoring Resolved 2004-07-01
Other Monitoring Resolved 2004-07-01
MR Monitoring Resolved 1993-07-01

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 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
2620 µg/L 26%
of the EPA limit 10000 µg/L
worst single sample: 2900 µg/L
28/60 SYR4 2012–2019
Fluoride
780 µg/L 20%
of the EPA limit 4000 µg/L
worst single sample: 900 µg/L
9/9 SYR4 2013–2019
Lead
0.0067 mg/L 45%
of the EPA limit 0.0150 mg/L
 5/5 LCR 2024
Bromoform
5.22 µg/L
No EPA limit set
worst single sample: 5.4 µg/L
2/2 SYR4 2018
Combined Uranium
7.31441 µg/L 24%
of the EPA limit 30 µg/L
worst single sample: 7.3606 µg/L
2/2 SYR4 2015–2016
Gross Beta Particle Activity
4.6275 pCi/L
No EPA limit set
worst single sample: 4.68 pCi/L
2/2 SYR4 2018
TTHM
6.075 µg/L 7.6%
of the EPA limit 80 µg/L
worst single sample: 6.3 µg/L
2/2 SYR4 2018
Toluene
1.755 µg/L 0.2%
of the EPA limit 1000 µg/L
worst single sample: 1.8 µg/L
2/10 SYR4 2015–2018
Barium
63 µg/L 3.2%
of the EPA limit 2000 µg/L
 1/9 SYR4 2013–2019
Chromium
1.1 µg/L 1.1%
of the EPA limit 100 µg/L
 1/9 SYR4 2013–2019
Dibromochloromethane
0.8600 µg/L
No EPA limit set
 1/2 SYR4 2018
42 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalArsenicAsbestosAtrazineBenzeneBeryllium, TotalBromodichloromethaneChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChloroformDichloromethaneDibromoacetic AcidDichloroacetic AcidEthylbenzeneLeadMercuryMonobromoacetic AcidMonochloroacetic AcidNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HALL, FREIDA
Phone
951-858-6278
Email
[email protected]

Frequently asked questions about Oak Haven Association

Is Oak Haven Association tap water safe to drink?

EPA monitoring detected 11 contaminants in Oak Haven Association'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 Oak Haven Association's water?

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

How many people does Oak Haven Association serve?

Oak Haven Association reports serving 120 people in California, per its EPA record.

Has Oak Haven Association had any water quality violations?

The EPA has 21 violations on file for Oak Haven Association, 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.