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Tap water quality report

Scua Upper Seven Mile

EPA monitoring tested this supplier for 101 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

101
contaminants tested
12
detected
8,478
people served
100
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.

100
health-based violations
630
violations on file
13
still open
ViolationTypeStatusPeriod
TT Health-based Unaddressed 2026-01-31
TT Health-based Unaddressed 2026-01-31
TT Health-based Unaddressed 2025-11-28
TT Health-based Unaddressed 2025-11-28
TT Health-based Unaddressed 2025-11-28
TT Health-based Unaddressed 2025-11-01
TT Health-based Unaddressed 2025-11-01
TT Health-based Unaddressed 2025-11-01
MCL Health-based Resolved 2025-11-01 → 2025-11-30
TT Health-based Unaddressed 2025-10-24

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0538 µg/L 8/8 2025

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
2648.5 µg/L 26%
of the EPA limit 10000 µg/L
worst single sample: 2940 µg/L
104/122 SYR4 2012–2019
Arsenic
14.88 µg/L 149%
of the EPA limit, at the 95th percentile of samples — 10 µg/L
worst single sample: 31.6 µg/L
97/99 SYR4 2012–2019
Barium
90 µg/L 4.5%
of the EPA limit 2000 µg/L
 8/8 SYR4 2012–2015
Gross Alpha, Excl. Radon And U
3.765 pCi/L 25%
of the EPA limit 15 pCi/L
worst single sample: 3.8 pCi/L
8/10 SYR4 2012–2018
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2025
Lithium
72.8 µg/L
No EPA limit set
 8/8 UCMR-5 2025
Fluoride
497 µg/L 12%
of the EPA limit 4000 µg/L
worst single sample: 500 µg/L
7/8 SYR4 2012–2015
Combined Uranium
5.5726 µg/L 19%
of the EPA limit 30 µg/L
worst single sample: 5.662 µg/L
5/10 SYR4 2012–2018
Selenium
2 µg/L 4%
of the EPA limit 50 µg/L
 2/8 SYR4 2012–2015
Nitrite
100 µg/L 10%
of the EPA limit 1000 µg/L
 1/49 SYR4 2012–2019
TTHM
5.8 µg/L 7.2%
of the EPA limit 80 µg/L
 1/4 SYR4 2017–2019
89 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, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Total Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Terry Rambler
Phone
9284752631
Email
[email protected]

Frequently asked questions about Scua Upper Seven Mile

Is Scua Upper Seven Mile tap water safe to drink?

EPA monitoring detected 12 contaminants in Scua Upper Seven Mile'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 Scua Upper Seven Mile's water?

EPA monitoring detected Nitrate, Arsenic, Barium, Gross Alpha, Excl. Radon And U, Lead, and others. The full list with the level and data source for each is above.

How many people does Scua Upper Seven Mile serve?

Scua Upper Seven Mile reports serving 8,478 people in Arizona, per its EPA record.

Has Scua Upper Seven Mile had any water quality violations?

The EPA has 630 violations on file for Scua Upper Seven Mile, of which 100 are health-based (a contaminant limit or required treatment was breached) and 13 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.