Is Epcor - Sun City 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

305

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2001-08-01 → 2001-08-31
MR	Monitoring	Resolved	2018-04-01 → 2018-06-30
MR	Monitoring	Resolved	2013-04-01 → 2013-06-30
MR	Monitoring	Resolved	2013-04-01 → 2013-06-30
MR	Monitoring	Resolved	2013-04-01 → 2013-06-30
MR	Monitoring	Resolved	2013-04-01 → 2013-06-30
Other	Monitoring	Resolved	2012-07-01
MR	Monitoring	Resolved	2012-04-01 → 2012-04-30
MR	Monitoring	Resolved	2012-04-01 → 2012-04-30
MR	Monitoring	Resolved	2012-04-01 → 2012-06-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Nitrate	6600 µg/L 66% of the EPA limit 10000 µg/L worst single sample: 9160 µg/L	196/196	SYR4	2012–2019
Nitrate-Nitrite	6510 µg/L 65% of the EPA limit 10000 µg/L worst single sample: 7070 µg/L	81/81	SYR4	2012–2018
Copper	151.5 µg/L 12% of the EPA limit 1300 µg/L worst single sample: 390 µg/L	60/60	SYR4	2014–2017
Arsenic	9.01 µg/L 90% of the EPA limit 10 µg/L worst single sample: 9.6 µg/L	59/59	SYR4	2012–2019
TTHM	7.735 µg/L 9.7% of the EPA limit 80 µg/L worst single sample: 45.1 µg/L	38/61	SYR4	2012–2019
Fluoride	356 µg/L 8.9% of the EPA limit 4000 µg/L worst single sample: 380 µg/L	25/25	SYR4	2012–2018
Barium	48.5 µg/L 2.4% of the EPA limit 2000 µg/L worst single sample: 80 µg/L	24/25	SYR4	2012–2018
Chromium	22.8 µg/L 23% of the EPA limit 100 µg/L worst single sample: 24 µg/L	22/25	SYR4	2012–2018
Selenium	6.255 µg/L 13% of the EPA limit 50 µg/L worst single sample: 6.4 µg/L	22/25	SYR4	2012–2018
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	14/14	LCR	2023
Lithium	46.2 µg/L No EPA limit set	14/14	UCMR-5	2023
Combined Radium (-226 And -228)	1.46 pCi/L 29% of the EPA limit 5 pCi/L worst single sample: 1.5 pCi/L	9/23	SYR4	2012–2018
Xylenes, Total	7.6 µg/L 0.1% of the EPA limit 10000 µg/L worst single sample: 8.6 µg/L	9/39	SYR4	2012–2018
Di(2-ethylhexyl) Phthalate	1.275 µg/L 21% of the EPA limit 6 µg/L worst single sample: 1.4 µg/L	6/67	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	1.92 µg/L 3.2% of the EPA limit 60 µg/L worst single sample: 2 µg/L	5/61	SYR4	2012–2019
Lead	23.2 µg/L 155% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 26.5 µg/L	4/60	SYR4	2014–2017
Ethylbenzene	0.6900 µg/L 0.1% of the EPA limit 700 µg/L worst single sample: 0.7000 µg/L	2/39	SYR4	2012–2018
Nitrite	100 µg/L 10% of the EPA limit 1000 µg/L	2/81	SYR4	2012–2018

84 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 TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinGlyphosateGross Beta Particle ActivityHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-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

Is Epcor - Sun City tap water safe to drink?

EPA monitoring detected 18 contaminants in Epcor - Sun City'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's water?

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

How many people does Epcor - Sun City serve?

Epcor - Sun City reports serving 38,016 people in Arizona, per its EPA record.

Has Epcor - Sun City had any water quality violations?

The EPA has 305 violations on file for Epcor - Sun City, of which 1 is 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.