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Tap water quality report

Winterhaven Water Development

EPA monitoring tested this supplier for 80 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

80
contaminants tested
16
detected
685
people served
0
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground water
Ownership
Private
Counties served
Pima

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
185
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2017-07-01 → 2017-09-30
MR Monitoring Resolved 2017-07-01 → 2017-09-30
MR Monitoring Resolved 2017-01-01 → 2017-03-31
MR Monitoring Resolved 2017-01-01 → 2017-03-31
MR Monitoring Resolved 2017-01-01 → 2017-03-31
MR Monitoring Resolved 2017-01-01 → 2017-03-31
MR Monitoring Resolved 2016-10-01 → 2016-12-31
MR Monitoring Resolved 2016-09-01 → 2017-08-31
MR Monitoring Resolved 2016-09-01 → 2017-08-31
MR Monitoring Resolved 2016-09-01 → 2017-08-31

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 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
6120 µg/L 61%
of the EPA limit 10000 µg/L
 70/72 SYR4 2012–2019
Copper
250 µg/L 19%
of the EPA limit 1300 µg/L
 19/20 SYR4 2014–2017
TTHM
8.8 µg/L 11%
of the EPA limit 80 µg/L
 15/15 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2023
Lead
6.3 µg/L 42%
of the EPA limit 15 µg/L
 7/20 SYR4 2014–2017
Nitrate-Nitrite
5950 µg/L 60%
of the EPA limit 10000 µg/L
 6/6 SYR4 2013–2018
Barium
98 µg/L 4.9%
of the EPA limit 2000 µg/L
 3/3 SYR4 2013
Fluoride
140 µg/L 3.5%
of the EPA limit 4000 µg/L
 3/3 SYR4 2013
Bromoform
2 µg/L
No EPA limit set
 2/2 SYR4 2019
Di(2-ethylhexyl) Phthalate
2.7 µg/L 45%
of the EPA limit 6 µg/L
 2/19 SYR4 2013–2019
Dibromochloromethane
0.7000 µg/L
No EPA limit set
 2/2 SYR4 2019
Arsenic
1.5 µg/L 15%
of the EPA limit 10 µg/L
 1/3 SYR4 2013
Chromium
1.5 µg/L 1.5%
of the EPA limit 100 µg/L
 1/3 SYR4 2013
Dibromoacetic Acid
1.1 µg/L
No EPA limit set
 1/2 SYR4 2019
Simazine
0.0640 µg/L 1.6%
of the EPA limit 4 µg/L
 1/13 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
1 µg/L 1.7%
of the EPA limit 60 µg/L
 1/16 SYR4 2013–2019
64 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, TotalBromodichloromethaneChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SHERRY, AMANDA
Phone
520-327-0111
Email
winterhavenoffice@gmail.com

Frequently asked questions about Winterhaven Water Development

Is Winterhaven Water Development tap water safe to drink?

EPA monitoring detected 16 contaminants in Winterhaven Water Development'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 Winterhaven Water Development'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 Winterhaven Water Development serve?

Winterhaven Water Development reports serving 685 people in Arizona, per its EPA record.

Has Winterhaven Water Development had any water quality violations?

The EPA has 185 violations on file for Winterhaven Water Development, 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.