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Tap water quality report

Caballeros Water Company

EPA monitoring tested this supplier for 79 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
10
detected
100
people served
8
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
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.

8
health-based violations
204
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2020-12-01
TT Health-based Resolved 2020-12-01
MCL Health-based Resolved 2006-07-01 → 2006-07-31
MCL Health-based Resolved 2005-04-01 → 2005-04-30
MCL Health-based Resolved 2005-01-01 → 2005-01-31
MCL Health-based Resolved 1999-09-01 → 1999-09-30
MCL Health-based Resolved 1999-09-01 → 1999-09-30
MCL Health-based Resolved 1998-09-01 → 1998-09-30
MON Monitoring Archived 2026-03-01 → 2026-03-31
MR Monitoring Resolved 2025-09-01 → 2025-09-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
5450 µg/L 55%
of the EPA limit 10000 µg/L
worst single sample: 5600 µg/L
36/40 SYR4 2012–2019
Lead
0.0037 mg/L 25%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2024
Nitrate-Nitrite
4519 µg/L 45%
of the EPA limit 10000 µg/L
worst single sample: 4870 µg/L
10/12 SYR4 2012–2017
Copper
280 µg/L 22%
of the EPA limit 1300 µg/L
worst single sample: 340 µg/L
5/15 SYR4 2013–2017
Lead
3.04 µg/L 20%
of the EPA limit 15 µg/L
worst single sample: 3.1 µg/L
4/15 SYR4 2013–2017
Arsenic
6.5 µg/L 65%
of the EPA limit 10 µg/L
 1/1 SYR4 2017
Barium
7.8 µg/L 0.4%
of the EPA limit 2000 µg/L
 1/1 SYR4 2017
Chromium
24 µg/L 24%
of the EPA limit 100 µg/L
 1/1 SYR4 2017
Combined Radium (-226 And -228)
0.4000 pCi/L 8%
of the EPA limit 5 pCi/L
 1/1 SYR4 2014
Fluoride
780 µg/L 20%
of the EPA limit 4000 µg/L
 1/1 SYR4 2017
69 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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MCGANN, GEORGE
Phone
928-684-5484
Email
[email protected]

Frequently asked questions about Caballeros Water Company

Is Caballeros Water Company tap water safe to drink?

EPA monitoring detected 10 contaminants in Caballeros Water Company'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 Caballeros Water Company's water?

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

How many people does Caballeros Water Company serve?

Caballeros Water Company reports serving 100 people in Arizona, per its EPA record.

Has Caballeros Water Company had any water quality violations?

The EPA has 204 violations on file for Caballeros Water Company, of which 8 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.