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Tap water quality report

Ponderosa Dwid

EPA monitoring tested this supplier for 110 contaminants and detected 22. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

110
contaminants tested
22
detected
5,375
people served
2
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.

2
health-based violations
534
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2006-06-01 → 2006-06-30
MCL Health-based Resolved 2003-01-01 → 2003-01-31
MR Monitoring Archived 2026-03-01 → 2026-03-31
MR Monitoring Archived 2026-02-01 → 2026-02-28
MR Monitoring Archived 2026-01-01 → 2026-01-31
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
PFBS 0.0121 µg/L 2/9 2025
Pfhxa 0.0128 µg/L 1/9 2025
Pfpea 0.0041 µg/L 1/9 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 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
1100 µg/L 11%
of the EPA limit 10000 µg/L
 78/82 SYR4 2012–2019
Copper
150 µg/L 12%
of the EPA limit 1300 µg/L
 38/39 SYR4 2014–2017
TTHM
19.3 µg/L 24%
of the EPA limit 80 µg/L
 14/25 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2023
Lead
5.2 µg/L 35%
of the EPA limit 15 µg/L
 4/39 SYR4 2014–2017
Total Haloacetic Acids (HAA5)
13 µg/L 22%
of the EPA limit 60 µg/L
 3/23 SYR4 2012–2019
Xylenes, Total
10 µg/L 0.1%
of the EPA limit 10000 µg/L
 3/16 SYR4 2013–2019
Barium
4 µg/L 0.2%
of the EPA limit 2000 µg/L
 2/2 SYR4 2014–2019
Chromium
2.1 µg/L 2.1%
of the EPA limit 100 µg/L
 2/2 SYR4 2014–2019
Nitrate-Nitrite
420 µg/L 4.2%
of the EPA limit 10000 µg/L
 2/2 SYR4 2014–2019
Lithium
10.8 µg/L
No EPA limit set
 2/9 UCMR-5 2025
Bromodichloromethane
2.6 µg/L
No EPA limit set
 1/4 SYR4 2019
Bromoform
1.4 µg/L
No EPA limit set
 1/4 SYR4 2019
Chloroform
1.2 µg/L
No EPA limit set
 1/4 SYR4 2019
Dibromoacetic Acid
1 µg/L
No EPA limit set
 1/2 SYR4 2019
Dibromochloromethane
4.1 µg/L
No EPA limit set
 1/4 SYR4 2019
Ethylbenzene
1.6 µg/L 0.2%
of the EPA limit 700 µg/L
 1/16 SYR4 2013–2019
Fluoride
61 µg/L 1.5%
of the EPA limit 4000 µg/L
 1/2 SYR4 2014–2019
Styrene
0.6000 µg/L 0.6%
of the EPA limit 100 µg/L
 1/16 SYR4 2013–2019
88 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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
PONDEROSA DWID
Phone
928-369-3342
Email
redeming@yahoo.com

Frequently asked questions about Ponderosa Dwid

Is Ponderosa Dwid tap water safe to drink?

EPA monitoring detected 22 contaminants in Ponderosa Dwid'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 Ponderosa Dwid's water?

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

How many people does Ponderosa Dwid serve?

Ponderosa Dwid reports serving 5,375 people in Arizona, per its EPA record.

Has Ponderosa Dwid had any water quality violations?

The EPA has 534 violations on file for Ponderosa Dwid, of which 2 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.