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Tap water quality report

Navajo Water - Laguna Estates

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
89
people served
7
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Mixed public/private
Counties served
Navajo

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.

7
health-based violations
59
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2015-11-01 → 2015-11-30
MCL Health-based Resolved 2015-11-01 → 2015-11-30
MCL Health-based Resolved 2015-11-01 → 2015-11-30
MCL Health-based Resolved 2011-03-01 → 2011-03-31
MCL Health-based Resolved 2011-03-01 → 2011-03-31
MCL Health-based Resolved 2003-12-01 → 2003-12-31
MCL Health-based Resolved 2002-06-01 → 2002-06-30
RPT Monitoring Resolved 2025-07-02
RPT Monitoring Resolved 2025-07-02
Other Monitoring Resolved 2025-07-01

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
Nitrate
350 µg/L 3.5%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2025
Copper
36 µg/L 2.8%
of the EPA limit 1300 µg/L
 6/20 SYR4 2012–2019
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 1/1 SYR4 2015
Barium
33 µg/L 1.7%
of the EPA limit 2000 µg/L
 1/1 SYR4 2015
Chromium
1.8 µg/L 1.8%
of the EPA limit 100 µg/L
 1/1 SYR4 2015
Fluoride
73 µg/L 1.8%
of the EPA limit 4000 µg/L
 1/1 SYR4 2015
Nitrate-Nitrite
300 µg/L 3%
of the EPA limit 10000 µg/L
 1/1 SYR4 2012
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 TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
DOMINICK, DIEGO A
Phone
928-478-6516
Email
diego@jwwater.net

Frequently asked questions about Navajo Water - Laguna Estates

Is Navajo Water - Laguna Estates tap water safe to drink?

EPA monitoring detected 8 contaminants in Navajo Water - Laguna Estates'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 Navajo Water - Laguna Estates's water?

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

How many people does Navajo Water - Laguna Estates serve?

Navajo Water - Laguna Estates reports serving 89 people in Arizona, per its EPA record.

Has Navajo Water - Laguna Estates had any water quality violations?

The EPA has 59 violations on file for Navajo Water - Laguna Estates, of which 7 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.