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Tap water quality report

Walnut Creek Water Company

EPA monitoring tested this supplier for 69 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

69
contaminants tested
10
detected
728
people served
0
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Mixed public/private
Counties served
Mohave

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.

0
health-based violations
89
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2022-10-01
MR Monitoring Resolved 2022-10-01
MR Monitoring Resolved 2022-09-25
MR Monitoring Resolved 2022-09-25
RPT Monitoring Resolved 2022-02-01
RPT Monitoring Resolved 2022-02-01
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31
MR Monitoring Resolved 2022-01-01 → 2022-12-31

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
Copper
160 µg/L 12%
of the EPA limit 1300 µg/L
 19/30 SYR4 2013–2019
Nitrate
3400 µg/L 34%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
 9/9 LCR 2025
Lead
2.78 µg/L 19%
of the EPA limit 15 µg/L
worst single sample: 3.2 µg/L
7/30 SYR4 2013–2019
Arsenic
9.29 µg/L 93%
of the EPA limit 10 µg/L
worst single sample: 9.3 µg/L
3/3 SYR4 2013–2019
Barium
53.9 µg/L 2.7%
of the EPA limit 2000 µg/L
worst single sample: 54 µg/L
3/3 SYR4 2013–2019
Chromium
4.36 µg/L 4.4%
of the EPA limit 100 µg/L
worst single sample: 4.4 µg/L
3/3 SYR4 2013–2019
Fluoride
2590 µg/L 65%
of the EPA limit 4000 µg/L
worst single sample: 2600 µg/L
3/3 SYR4 2013–2019
Combined Radium (-226 And -228)
0.8000 pCi/L 16%
of the EPA limit 5 pCi/L
 1/3 SYR4 2013–2019
Nitrate-Nitrite
3300 µg/L 33%
of the EPA limit 10000 µg/L
 1/1 SYR4 2016
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 TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GAGNE, JASON
Phone
623-935-1100
Email
jgagne@hopewater.com

Frequently asked questions about Walnut Creek Water Company

Is Walnut Creek Water Company tap water safe to drink?

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

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

How many people does Walnut Creek Water Company serve?

Walnut Creek Water Company reports serving 728 people in Arizona, per its EPA record.

Has Walnut Creek Water Company had any water quality violations?

The EPA has 89 violations on file for Walnut Creek Water Company, of which 0 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.