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Tap water quality report

Ak-Chin Village

EPA monitoring tested this supplier for 102 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
16
detected
11,646
people served
11
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Surface 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.

11
health-based violations
45
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2025-11-01 → 2025-11-30
TT Health-based Resolved 2017-07-01 → 2017-07-31
MCL Health-based Resolved 2009-06-01 → 2009-06-30
MCL Health-based Resolved 2003-10-01 → 2003-10-31
MCL Health-based Resolved 2002-01-01 → 2002-12-31
MCL Health-based Resolved 2002-01-01 → 2002-12-31
MCL Health-based Resolved 2002-01-01 → 2002-01-31
MCL Health-based Resolved 2001-01-01 → 2001-12-31
MCL Health-based Resolved 1996-03-01 → 1996-03-31
MCL Health-based Resolved 1996-02-01 → 1996-02-29

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0030 µg/L 1/4 2024

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
TTHM
83.15 µg/L 104%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 86 µg/L
58/58 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
26 µg/L 43%
of the EPA limit 60 µg/L
worst single sample: 42 µg/L
57/58 SYR4 2012–2019
Nitrate
7618.5 µg/L 76%
of the EPA limit 10000 µg/L
worst single sample: 8340 µg/L
34/42 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 15/15 LCR 2025
Barium
120 µg/L 6%
of the EPA limit 2000 µg/L
 7/8 SYR4 2012–2019
Chromium
260 µg/L 260%
of the EPA limit, at the 95th percentile of samples — 100 µg/L
worst single sample: 350 µg/L
7/11 SYR4 2012–2019
Fluoride
1050 µg/L 26%
of the EPA limit 4000 µg/L
worst single sample: 1100 µg/L
6/8 SYR4 2012–2019
Combined Uranium
16.7826 µg/L 56%
of the EPA limit 30 µg/L
worst single sample: 19.6 µg/L
5/6 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
3.42 pCi/L 23%
of the EPA limit 15 pCi/L
worst single sample: 3.7 pCi/L
5/5 SYR4 2012–2019
Gross Beta Particle Activity
139.915 pCi/L
No EPA limit set
worst single sample: 163 pCi/L
4/5 SYR4 2014–2015
Selenium
22.3 µg/L 45%
of the EPA limit 50 µg/L
worst single sample: 25 µg/L
4/8 SYR4 2012–2019
Lithium
90.8 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Arsenic
2.8 µg/L 28%
of the EPA limit 10 µg/L
 1/7 SYR4 2014–2019
Cadmium
1 µg/L 20%
of the EPA limit 5 µg/L
 1/8 SYR4 2012–2019
Combined Radium (-226 And -228)
5.42 pCi/L 108%
of the EPA limit, at the 95th percentile of samples — 5 pCi/L
 1/7 SYR4 2013–2019
86 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Gabriel Lopez
Phone
5205681024
Email
[email protected]

Frequently asked questions about Ak-Chin Village

Is Ak-Chin Village tap water safe to drink?

EPA monitoring detected 16 contaminants in Ak-Chin Village'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 Ak-Chin Village's water?

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

How many people does Ak-Chin Village serve?

Ak-Chin Village reports serving 11,646 people in Arizona, per its EPA record.

Has Ak-Chin Village had any water quality violations?

The EPA has 45 violations on file for Ak-Chin Village, of which 11 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.