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Tap water quality report

Sun Valley Utilities

EPA monitoring tested this supplier for 71 contaminants and detected 9. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
9
detected
287
people served
21
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Private
Counties served
Navajo

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.

21
health-based violations
270
violations on file
3
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2025-04-01 → 2025-06-30
MCL Health-based Resolved 2025-04-01 → 2025-06-30
MCL Health-based Resolved 2025-04-01 → 2025-06-30
MCL Health-based Resolved 2025-04-01 → 2025-06-30
MCL Health-based Resolved 2022-01-01 → 2022-03-31
MCL Health-based Resolved 2022-01-01 → 2022-03-31
MCL Health-based Resolved 2022-01-01 → 2022-03-31
MCL Health-based Resolved 2021-10-01 → 2021-12-31
MCL Health-based Resolved 2021-10-01 → 2021-12-31
MCL Health-based Resolved 2021-10-01 → 2021-12-31

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
Copper
153 µg/L 12%
of the EPA limit 1300 µg/L
worst single sample: 160 µg/L
15/20 SYR4 2013–2019
Lead
0.0070 mg/L 47%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Lead
1.58 µg/L 11%
of the EPA limit 15 µg/L
worst single sample: 1.7 µg/L
7/20 SYR4 2013–2019
TTHM
53.395 µg/L 67%
of the EPA limit 80 µg/L
worst single sample: 56 µg/L
2/2 SYR4 2013–2019
Arsenic
4.1 µg/L 41%
of the EPA limit 10 µg/L
 1/1 SYR4 2013
Barium
42 µg/L 2.1%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Chromium
1.6 µg/L 1.6%
of the EPA limit 100 µg/L
 1/1 SYR4 2013
Fluoride
980 µg/L 25%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
Total Haloacetic Acids (HAA5)
4 µg/L 6.7%
of the EPA limit 60 µg/L
 1/2 SYR4 2013–2019
62 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, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitrateNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SULLIVAN JR, RANDALL L
Phone
928-524-6225
Email
[email protected]

Frequently asked questions about Sun Valley Utilities

Is Sun Valley Utilities tap water safe to drink?

EPA monitoring detected 9 contaminants in Sun Valley Utilities'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 Sun Valley Utilities's water?

EPA monitoring detected Copper, Lead, Lead, TTHM, Arsenic, and others. The full list with the level and data source for each is above.

How many people does Sun Valley Utilities serve?

Sun Valley Utilities reports serving 287 people in Arizona, per its EPA record.

Has Sun Valley Utilities had any water quality violations?

The EPA has 270 violations on file for Sun Valley Utilities, of which 21 are health-based (a contaminant limit or required treatment was breached) and 3 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.