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Tap water quality report

Pantano Water Coop

EPA monitoring tested this supplier for 69 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
8
detected
156
people served
4
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Private
Counties served
Pima

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.

4
health-based violations
108
violations on file
3
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2022-04-01
TT Health-based Resolved 2022-04-01
TT Health-based Resolved 2022-04-01
TT Health-based Resolved 2022-04-01
MR Monitoring Unaddressed 2025-10-01
MR Monitoring Unaddressed 2025-10-01
RPT Monitoring Unaddressed 2025-07-02
RPT Monitoring Resolved 2022-03-01
RPT Monitoring Resolved 2022-03-01
MR Monitoring Resolved 2019-10-25

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
Copper
162 µg/L 12%
of the EPA limit 1300 µg/L
worst single sample: 200 µg/L
40/40 SYR4 2012–2019
Lead
5.475 µg/L 37%
of the EPA limit 15 µg/L
worst single sample: 6.4 µg/L
22/40 SYR4 2012–2019
Nitrate
1800 µg/L 18%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0080 mg/L 53%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2022
Arsenic
4.1 µg/L 41%
of the EPA limit 10 µg/L
 1/1 SYR4 2013
Barium
68 µg/L 3.4%
of the EPA limit 2000 µg/L
 1/1 SYR4 2013
Fluoride
380 µg/L 9.5%
of the EPA limit 4000 µg/L
 1/1 SYR4 2013
Nitrate-Nitrite
1800 µg/L 18%
of the EPA limit 10000 µg/L
 1/1 SYR4 2013
61 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 TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SCHNEIDER, JEREMY
Phone
520-730-6149
Email
[email protected]

Frequently asked questions about Pantano Water Coop

Is Pantano Water Coop tap water safe to drink?

EPA monitoring detected 8 contaminants in Pantano Water Coop'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 Pantano Water Coop's water?

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

How many people does Pantano Water Coop serve?

Pantano Water Coop reports serving 156 people in Arizona, per its EPA record.

Has Pantano Water Coop had any water quality violations?

The EPA has 108 violations on file for Pantano Water Coop, of which 4 are health-based (a contaminant limit or required treatment was breached) and 3 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.