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Tap water quality report

Epcor - Tubac

EPA monitoring tested this supplier for 71 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

71
contaminants tested
12
detected
2,076
people served
37
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Private
Counties served
Santa Cruz

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.

37
health-based violations
134
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2009-10-01 → 2009-12-31
MCL Health-based Resolved 2009-07-01 → 2009-09-30
MCL Health-based Resolved 2009-07-01 → 2009-09-30
MCL Health-based Resolved 2009-07-01 → 2009-09-30
MCL Health-based Resolved 2009-04-01 → 2009-06-30
MCL Health-based Resolved 2009-04-01 → 2009-06-30
MCL Health-based Resolved 2009-04-01 → 2009-06-30
MCL Health-based Resolved 2009-01-01 → 2009-03-31
MCL Health-based Resolved 2009-01-01 → 2009-03-31
MCL Health-based Resolved 2009-01-01 → 2009-03-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Arsenic
11 µg/L 110%
of the EPA limit, in the worst sample — 10 µg/L
 36/36 SYR4 2012–2019
Nitrate
1100 µg/L 11%
of the EPA limit 10000 µg/L
 32/32 SYR4 2012–2019
Copper
721 µg/L 55%
of the EPA limit 1300 µg/L
 30/30 SYR4 2012–2018
TTHM
19.5 µg/L 24%
of the EPA limit 80 µg/L
 20/20 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2024
Total Haloacetic Acids (HAA5)
4.4 µg/L 7.3%
of the EPA limit 60 µg/L
 10/20 SYR4 2012–2019
Lead
75.4 µg/L 503%
of the EPA limit, in the worst sample — 15 µg/L
 8/30 SYR4 2012–2018
Barium
8.1 µg/L 0.4%
of the EPA limit 2000 µg/L
 2/2 SYR4 2014–2017
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 2/2 SYR4 2014–2017
Fluoride
1800 µg/L 45%
of the EPA limit 4000 µg/L
 2/2 SYR4 2014–2017
Pentachlorophenol
1 µg/L 100%
of the EPA limit 1 µg/L
 2/4 SYR4 2016–2019
Nitrate-Nitrite
900 µg/L 9%
of the EPA limit 10000 µg/L
 1/1 SYR4 2017
59 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 EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DIDOMIZIO, TOM
Phone
623-445-2431
Email
tdidomizio@epcor.com

Frequently asked questions about Epcor - Tubac

Is Epcor - Tubac tap water safe to drink?

EPA monitoring detected 12 contaminants in Epcor - Tubac'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 - Tubac's water?

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

How many people does Epcor - Tubac serve?

Epcor - Tubac reports serving 2,076 people in Arizona, per its EPA record.

Has Epcor - Tubac had any water quality violations?

The EPA has 134 violations on file for Epcor - Tubac, of which 37 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.