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Tap water quality report

Cocopah East

EPA monitoring tested this supplier for 69 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
9
detected
280
people served
0
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Native American

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
91
violations on file
1
still open
ViolationTypeStatusPeriod
RPT Monitoring Unaddressed 2026-02-01
RPT Monitoring Resolved 2025-05-01
RPT Monitoring Resolved 2025-05-01
RPT Monitoring Resolved 2025-05-01
MR Monitoring Resolved 2024-01-01 → 2024-03-31
MR Monitoring Resolved 2021-10-01 → 2021-12-31
MR Monitoring Archived 2020-01-01 → 2025-12-31
MR Monitoring Archived 2020-01-01 → 2025-12-31
MR Monitoring Resolved 2013-11-01 → 2013-11-30
MR Monitoring Resolved 2013-09-01 → 2013-09-30

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
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2025
TTHM
34.4 µg/L 43%
of the EPA limit 80 µg/L
worst single sample: 35 µg/L
3/3 SYR4 2012–2017
Total Haloacetic Acids (HAA5)
8.39 µg/L 14%
of the EPA limit 60 µg/L
worst single sample: 8.4 µg/L
3/3 SYR4 2012–2017
Barium
47.4 µg/L 2.4%
of the EPA limit 2000 µg/L
worst single sample: 48 µg/L
2/2 SYR4 2014–2017
Combined Uranium
2.3494 µg/L 7.8%
of the EPA limit 30 µg/L
worst single sample: 2.37268 µg/L
2/2 SYR4 2016–2019
Gross Alpha, Excl. Radon And U
10.6098 pCi/L 71%
of the EPA limit 15 pCi/L
worst single sample: 11.0103 pCi/L
2/2 SYR4 2016–2019
Nitrate
2000 µg/L 20%
of the EPA limit 10000 µg/L
 2/16 SYR4 2012–2019
Arsenic
2.2 µg/L 22%
of the EPA limit 10 µg/L
 1/2 SYR4 2014–2017
Fluoride
560 µg/L 14%
of the EPA limit 4000 µg/L
 1/2 SYR4 2014–2017
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Sherry Cordova
Phone
9286272102
Email
[email protected]

Frequently asked questions about Cocopah East

Is Cocopah East tap water safe to drink?

EPA monitoring detected 9 contaminants in Cocopah East'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 Cocopah East's water?

EPA monitoring detected Lead, TTHM, Total Haloacetic Acids (HAA5), Barium, Combined Uranium, and others. The full list with the level and data source for each is above.

How many people does Cocopah East serve?

Cocopah East reports serving 280 people in Arizona, per its EPA record.

Has Cocopah East had any water quality violations?

The EPA has 91 violations on file for Cocopah East, of which 0 are health-based (a contaminant limit or required treatment was breached) and 1 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.