Is Cottonwood Municipal Water cw1 Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Private
Counties served: Yavapai

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.

173

health-based violations

361

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2021-04-01 → 2021-06-30
MCL	Health-based	Resolved	2021-04-01 → 2021-06-30
MCL	Health-based	Resolved	2021-04-01 → 2021-06-30
MCL	Health-based	Resolved	2021-04-01 → 2021-06-30
MCL	Health-based	Resolved	2021-01-01 → 2021-03-31
MCL	Health-based	Resolved	2021-01-01 → 2021-03-31
MCL	Health-based	Resolved	2021-01-01 → 2021-03-31
MCL	Health-based	Resolved	2021-01-01 → 2021-03-31
MCL	Health-based	Resolved	2021-01-01 → 2021-03-31
MCL	Health-based	Resolved	2021-01-01 → 2021-03-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).

Contaminant	Max	Detection rate	Period
Pfpea	0.0032 µg/L	1/10	2025

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
Arsenic	9.72 µg/L 97% of the EPA limit 10 µg/L worst single sample: 14 µg/L	127/158	SYR4	2012–2019
Copper	317 µg/L 24% of the EPA limit 1300 µg/L worst single sample: 840 µg/L	63/64	SYR4	2012–2017
Nitrate	579 µg/L 5.8% of the EPA limit 10000 µg/L worst single sample: 890 µg/L	62/72	SYR4	2012–2019
Lead	4.895 µg/L 33% of the EPA limit 15 µg/L worst single sample: 21 µg/L	34/64	SYR4	2012–2017
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	19/19	LCR	2023
Barium	610 µg/L 31% of the EPA limit 2000 µg/L worst single sample: 620 µg/L	11/11	SYR4	2012–2018
Fluoride	425 µg/L 11% of the EPA limit 4000 µg/L worst single sample: 460 µg/L	11/11	SYR4	2012–2018
Lithium	51.5 µg/L No EPA limit set	10/10	UCMR-5	2025
Chromium	12.6 µg/L 13% of the EPA limit 100 µg/L worst single sample: 13 µg/L	9/11	SYR4	2012–2018
TTHM	9.32 µg/L 12% of the EPA limit 80 µg/L worst single sample: 9.8 µg/L	9/22	SYR4	2012–2019
Nitrate-Nitrite	510 µg/L 5.1% of the EPA limit 10000 µg/L worst single sample: 560 µg/L	6/7	SYR4	2012–2018
Xylenes, Total	1.865 µg/L 0% of the EPA limit 10000 µg/L worst single sample: 2 µg/L	4/19	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	1.385 µg/L 2.3% of the EPA limit 60 µg/L worst single sample: 1.4 µg/L	2/22	SYR4	2012–2019
Bromodichloromethane	1.2 µg/L No EPA limit set	1/2	SYR4	2019
Bromoform	4.4 µg/L No EPA limit set	1/2	SYR4	2019
Combined Radium (-226 And -228)	0.6000 pCi/L 12% of the EPA limit 5 pCi/L	1/10	SYR4	2013–2019
Dibromoacetic Acid	1.2 µg/L No EPA limit set	1/2	SYR4	2019
Dibromochloromethane	3 µg/L No EPA limit set	1/2	SYR4	2019

91 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 TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: BREITKREUTZ, DEBORAH L
Phone: 928-340-2750
Email: [email protected]

Frequently asked questions about Cottonwood Municipal Water cw1

Is Cottonwood Municipal Water cw1 tap water safe to drink?

EPA monitoring detected 19 contaminants in Cottonwood Municipal Water cw1'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 Cottonwood Municipal Water cw1's water?

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

How many people does Cottonwood Municipal Water cw1 serve?

Cottonwood Municipal Water cw1 reports serving 11,023 people in Arizona, per its EPA record.

Has Cottonwood Municipal Water cw1 had any water quality violations?

The EPA has 361 violations on file for Cottonwood Municipal Water cw1, of which 173 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.