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Tap water quality report

Liberty Park Water Association

EPA monitoring tested this supplier for 44 contaminants and detected 6. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

44
contaminants tested
6
detected
85
people served
7
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Ground water
Ownership
Private
Counties served
Orange

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.

7
health-based violations
19
violations on file
2
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2025-02-01 → 2025-02-28
MCL Health-based Resolved 2025-02-01 → 2025-02-28
MCL Health-based Resolved 2025-01-01 → 2025-01-31
MCL Health-based Resolved 2025-01-01 → 2025-01-31
TT Health-based Unaddressed 2024-10-17
TT Health-based Resolved 2019-07-01
TT Health-based Resolved 2019-07-01
Other Monitoring Resolved 2025-01-26
Other Monitoring Resolved 2025-01-26
RPT Monitoring Unaddressed 2024-10-17

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
7028.6 µg/L 70%
of the EPA limit 10000 µg/L
 60/60 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2023
Nitrate-Nitrite
4980 µg/L 50%
of the EPA limit 10000 µg/L
 13/13 SYR4 2016–2019
Combined Uranium
2.3244 µg/L 7.7%
of the EPA limit 30 µg/L
 3/3 SYR4 2012–2018
Fluoride
430 µg/L 11%
of the EPA limit 4000 µg/L
 2/2 SYR4 2014–2017
Barium
128 µg/L 6.4%
of the EPA limit 2000 µg/L
 1/2 SYR4 2014–2017
38 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, TotalChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneEthylene DibromideEthylbenzeneLassoLeadMercuryNitriteSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
COSTELLO, ELLEN
Phone
714-847-2617
Email
COSMOCOST@YAHOO.COM

Frequently asked questions about Liberty Park Water Association

Is Liberty Park Water Association tap water safe to drink?

EPA monitoring detected 6 contaminants in Liberty Park Water 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 Liberty Park Water Association's water?

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

How many people does Liberty Park Water Association serve?

Liberty Park Water Association reports serving 85 people in California, per its EPA record.

Has Liberty Park Water Association had any water quality violations?

The EPA has 19 violations on file for Liberty Park Water Association, of which 7 are health-based (a contaminant limit or required treatment was breached) and 2 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.