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Tap water quality report

Epcor - Anthem

EPA monitoring tested this supplier for 101 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

101
contaminants tested
14
detected
23,826
people served
2
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Surface 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.

2
health-based violations
158
violations on file
2
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2017-10-01
TT Health-based Resolved 2017-10-01
RPT Monitoring Unaddressed 2025-07-02
RPT Monitoring Unaddressed 2025-07-02
MR Monitoring Resolved 2024-03-01 → 2024-03-31
MR Monitoring Resolved 2024-03-01 → 2024-03-31
MR Monitoring Resolved 2024-03-01 → 2024-03-31
MR Monitoring Resolved 2024-03-01 → 2024-03-31
MR Monitoring Resolved 2024-03-01 → 2024-03-31
MR Monitoring Resolved 2024-03-01 → 2024-03-31

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
80.35 µg/L 100%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 98.4 µg/L
132/132 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
28.65 µg/L 48%
of the EPA limit 60 µg/L
worst single sample: 34 µg/L
128/128 SYR4 2012–2019
Copper
793 µg/L 61%
of the EPA limit 1300 µg/L
worst single sample: 1200 µg/L
60/60 SYR4 2014–2017
Nitrate
2597.5 µg/L 26%
of the EPA limit 10000 µg/L
worst single sample: 3190 µg/L
36/38 SYR4 2012–2019
Nitrate-Nitrite
2518.5 µg/L 25%
of the EPA limit 10000 µg/L
worst single sample: 3190 µg/L
18/19 SYR4 2012–2019
Arsenic
3.45 µg/L 35%
of the EPA limit 10 µg/L
worst single sample: 3.7 µg/L
11/11 SYR4 2012–2018
Barium
125 µg/L 6.3%
of the EPA limit 2000 µg/L
worst single sample: 130 µg/L
11/11 SYR4 2012–2018
Fluoride
510 µg/L 13%
of the EPA limit 4000 µg/L
worst single sample: 590 µg/L
11/11 SYR4 2012–2018
Selenium
3.91 µg/L 7.8%
of the EPA limit 50 µg/L
worst single sample: 4 µg/L
10/11 SYR4 2012–2018
Lead
3.72 µg/L 25%
of the EPA limit 15 µg/L
worst single sample: 4 µg/L
9/60 SYR4 2014–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2023
Lithium
72.3 µg/L
No EPA limit set
 4/4 UCMR-5 2024
Combined Radium (-226 And -228)
3.795 pCi/L 76%
of the EPA limit 5 pCi/L
worst single sample: 3.8 pCi/L
2/2 SYR4 2014
Antimony, Total
0.5000 µg/L 8.3%
of the EPA limit 6 µg/L
 1/11 SYR4 2012–2018
87 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-PF3ONSAdonaAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-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 - Anthem

Is Epcor - Anthem tap water safe to drink?

EPA monitoring detected 14 contaminants in Epcor - Anthem'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 - Anthem's water?

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

How many people does Epcor - Anthem serve?

Epcor - Anthem reports serving 23,826 people in Arizona, per its EPA record.

Has Epcor - Anthem had any water quality violations?

The EPA has 158 violations on file for Epcor - Anthem, of which 2 are health-based (a contaminant limit or required treatment was breached) and 2 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.