Is Epcor - Sun City West Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Maricopa

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.

health-based violations

109

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2001-08-01 → 2001-08-31
MCL	Health-based	Archived	1988-10-01 → 1988-12-31
MCL	Health-based	Archived	1988-04-01 → 1988-06-30
MR	Monitoring	Resolved	2023-04-01 → 2023-06-30
MR	Monitoring	Resolved	2023-04-01 → 2023-06-30
MR	Monitoring	Resolved	2023-04-01 → 2023-06-30
MR	Monitoring	Resolved	2023-04-01 → 2023-06-30
MR	Monitoring	Resolved	2022-01-01 → 2022-12-31
MR	Monitoring	Resolved	2022-01-01 → 2022-12-31
MR	Monitoring	Resolved	2018-01-01 → 2018-03-31

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Arsenic	7.685 µg/L 77% of the EPA limit 10 µg/L worst single sample: 9.7 µg/L	64/64	SYR4	2012–2019
Copper	240 µg/L 18% of the EPA limit 1300 µg/L worst single sample: 310 µg/L	61/61	SYR4	2014–2017
Nitrate	4557 µg/L 46% of the EPA limit 10000 µg/L worst single sample: 4830 µg/L	34/34	SYR4	2012–2019
TTHM	4.805 µg/L 6% of the EPA limit 80 µg/L worst single sample: 6.2 µg/L	34/34	SYR4	2012–2019
Nitrate-Nitrite	4578 µg/L 46% of the EPA limit 10000 µg/L worst single sample: 4830 µg/L	13/13	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	9/9	LCR	2023
Total Haloacetic Acids (HAA5)	2.56 µg/L 4.3% of the EPA limit 60 µg/L worst single sample: 2.6 µg/L	9/34	SYR4	2012–2019
Fluoride	1990 µg/L 50% of the EPA limit 4000 µg/L worst single sample: 2080 µg/L	6/6	SYR4	2012–2018
Selenium	4.925 µg/L 9.9% of the EPA limit 50 µg/L worst single sample: 5 µg/L	6/6	SYR4	2012–2018
1,2-DIBROMO-3-CHLOROPROPANE	0.0300 µg/L 15% of the EPA limit 0.2000 µg/L	4/16	SYR4	2012–2018
Chromium	7 µg/L 7% of the EPA limit 100 µg/L	4/6	SYR4	2012–2018
Lead	16.115 µg/L 107% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 17.9 µg/L	4/61	SYR4	2014–2017
Lithium	132 µg/L No EPA limit set	4/4	UCMR-5	2023
Barium	30.9 µg/L 1.5% of the EPA limit 2000 µg/L worst single sample: 31 µg/L	3/6	SYR4	2012–2018
Combined Radium (-226 And -228)	0.5000 pCi/L 10% of the EPA limit 5 pCi/L	1/9	SYR4	2015–2019

87 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-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 TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: DIDOMIZIO, TOM
Phone: 623-445-2431
Email: [email protected]

Frequently asked questions about Epcor - Sun City West

Is Epcor - Sun City West tap water safe to drink?

EPA monitoring detected 15 contaminants in Epcor - Sun City West'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 Epcor - Sun City West's water?

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

How many people does Epcor - Sun City West serve?

Epcor - Sun City West reports serving 25,796 people in Arizona, per its EPA record.

Has Epcor - Sun City West had any water quality violations?

The EPA has 109 violations on file for Epcor - Sun City West, of which 3 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.