Tap WaterIndex

← Arizona

Tap water quality report

Desert Hills Water

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
4,220
people served
13
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
SWP
Ownership
Private
Counties served
Maricopa

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.

13
health-based violations
118
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-07-01 → 2010-09-30
MCL Health-based Resolved 2010-04-01 → 2010-06-30
MCL Health-based Resolved 2010-01-01 → 2010-03-31
MCL Health-based Resolved 2009-10-01 → 2009-12-31
MCL Health-based Resolved 2009-07-01 → 2009-09-30
MCL Health-based Resolved 2009-04-01 → 2009-06-30
MCL Health-based Resolved 2009-01-01 → 2009-03-31
MCL Health-based Resolved 2008-10-01 → 2008-12-31
MCL Health-based Resolved 2008-07-01 → 2008-09-30
MCL Health-based Resolved 2008-01-01 → 2008-03-31

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
Arsenic
10.2 µg/L 102%
of the EPA limit, in the worst sample — 10 µg/L
 60/60 SYR4 2012–2019
TTHM
90.1 µg/L 113%
of the EPA limit, in the worst sample — 80 µg/L
 55/56 SYR4 2012–2019
Copper
1100 µg/L 85%
of the EPA limit 1300 µg/L
 52/71 SYR4 2012–2017
Nitrate
2500 µg/L 25%
of the EPA limit 10000 µg/L
 52/52 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
33.6 µg/L 56%
of the EPA limit 60 µg/L
 52/59 SYR4 2012–2019
Lead
10 µg/L 67%
of the EPA limit 15 µg/L
 26/71 SYR4 2012–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2023
Nitrate-Nitrite
2500 µg/L 25%
of the EPA limit 10000 µg/L
 11/11 SYR4 2012–2017
Bromodichloromethane
29.6 µg/L
No EPA limit set
 8/8 SYR4 2019
Bromoform
6.3 µg/L
No EPA limit set
 8/8 SYR4 2019
Chloroform
40.2 µg/L
No EPA limit set
 8/8 SYR4 2019
Dibromoacetic Acid
3.5 µg/L
No EPA limit set
 8/8 SYR4 2019
Dibromochloromethane
18.3 µg/L
No EPA limit set
 8/8 SYR4 2019
Dichloroacetic Acid
14.4 µg/L
No EPA limit set
 8/8 SYR4 2019
Trichloroacetic Acid
12 µg/L
No EPA limit set
 8/8 SYR4 2019
Lithium
46.5 µg/L
No EPA limit set
 6/6 UCMR-5 2023
Barium
62 µg/L 3.1%
of the EPA limit 2000 µg/L
 4/4 SYR4 2012–2018
Chromium
7.9 µg/L 7.9%
of the EPA limit 100 µg/L
 4/4 SYR4 2012–2018
Fluoride
320 µg/L 8%
of the EPA limit 4000 µg/L
 4/4 SYR4 2012–2018
Di(2-ethylhexyl) Phthalate
0.6200 µg/L 10%
of the EPA limit 6 µg/L
 2/8 SYR4 2012–2018
Monobromoacetic Acid
1.3 µg/L
No EPA limit set
 2/8 SYR4 2019
Monochloroacetic Acid
2.4 µg/L
No EPA limit set
 2/8 SYR4 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, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
TOWN OF CAVE CREEK
Phone
480-479-9341
Email
skreuzwiesner@cavecreekaz.gov

Frequently asked questions about Desert Hills Water

Is Desert Hills Water tap water safe to drink?

EPA monitoring detected 22 contaminants in Desert Hills Water'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 Desert Hills Water's water?

EPA monitoring detected Arsenic, TTHM, Copper, Nitrate, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does Desert Hills Water serve?

Desert Hills Water reports serving 4,220 people in Arizona, per its EPA record.

Has Desert Hills Water had any water quality violations?

The EPA has 118 violations on file for Desert Hills Water, of which 13 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.