Tap WaterIndex

Tap water quality report

Chaparral Water Company

EPA monitoring tested this supplier for 80 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

80
contaminants tested
14
detected
963
people served
0
health-based violations
Water source
Ground water
Ownership
Mixed public/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.

0
health-based violations
251
violations on file
0
still open
ViolationTypeStatusPeriod
RPT Monitoring Resolved 2021-02-01
RPT Monitoring Resolved 2021-02-01
RPT Monitoring Resolved 2020-01-01
RPT Monitoring Resolved 2020-01-01
RPT Monitoring Resolved 2019-09-01
RPT Monitoring Resolved 2019-09-01
RPT Monitoring Resolved 2018-08-01
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2018-07-01 → 2018-09-30
MR Monitoring Resolved 2013-10-01 → 2013-12-31

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
Nitrate
1000 µg/L 10%
of the EPA limit 10000 µg/L
worst single sample: 1100 µg/L
54/54 SYR4 2012–2019
Copper
246 µg/L 19%
of the EPA limit 1300 µg/L
worst single sample: 280 µg/L
18/22 SYR4 2014–2017
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2023
Arsenic
4.21 µg/L 42%
of the EPA limit 10 µg/L
worst single sample: 4.3 µg/L
7/9 SYR4 2012–2016
Fluoride
615 µg/L 15%
of the EPA limit 4000 µg/L
worst single sample: 630 µg/L
6/6 SYR4 2012–2016
Barium
63.3 µg/L 3.2%
of the EPA limit 2000 µg/L
worst single sample: 65 µg/L
3/3 SYR4 2016
Chromium
21.7 µg/L 22%
of the EPA limit 100 µg/L
worst single sample: 22 µg/L
3/3 SYR4 2016
Nitrate-Nitrite
680 µg/L 6.8%
of the EPA limit 10000 µg/L
 3/3 SYR4 2013
Lead
9.74 µg/L 65%
of the EPA limit 15 µg/L
worst single sample: 10 µg/L
2/22 SYR4 2014–2017
TTHM
0.8900 µg/L 1.1%
of the EPA limit 80 µg/L
worst single sample: 0.9000 µg/L
2/12 SYR4 2014–2019
Combined Radium (-226 And -228)
1.2 pCi/L 24%
of the EPA limit 5 pCi/L
 1/3 SYR4 2016–2019
Ethylbenzene
22 µg/L 3.1%
of the EPA limit 700 µg/L
 1/11 SYR4 2013–2019
Styrene
22 µg/L 22%
of the EPA limit 100 µg/L
 1/11 SYR4 2013–2019
Toluene
0.5000 µg/L 0.1%
of the EPA limit 1000 µg/L
 1/11 SYR4 2013–2019
66 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, TotalBromodichloromethaneBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDibromochloromethaneDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineTetrachloroethyleneThallium, TotalTotal Haloacetic Acids (HAA5)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about Chaparral Water Company

Is Chaparral Water Company tap water safe to drink?

EPA monitoring detected 14 contaminants in Chaparral 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 Chaparral Water Company's water?

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

How many people does Chaparral Water Company serve?

Chaparral Water Company reports serving 963 people, per its EPA record.

Has Chaparral Water Company had any water quality violations?

The EPA has 251 violations on file for Chaparral 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.