Tap WaterIndex

Tap water quality report

City of Buckeye Sonora - Sundance

EPA monitoring tested this supplier for 111 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

111
contaminants tested
20
detected
15,783
people served
2
health-based violations
Water source
Ground water
Ownership
Local government
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.

2
health-based violations
135
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2005-10-01 → 2005-10-31
MCL Health-based Resolved 2000-09-01 → 2000-09-30
Other Monitoring Resolved 2025-10-02
Other Monitoring Resolved 2025-10-02
MR Monitoring Resolved 2025-01-01
MR Monitoring Resolved 2025-01-01
Other Monitoring Resolved 2024-07-01
Other Monitoring Resolved 2024-07-01
MR Monitoring Resolved 2023-01-01 → 2023-03-31
MR Monitoring Resolved 2023-01-01 → 2023-03-31

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
TTHM
56.8 µg/L 71%
of the EPA limit 80 µg/L
 96/96 SYR4 2012–2019
Copper
527 µg/L 41%
of the EPA limit 1300 µg/L
 63/65 SYR4 2014–2017
Arsenic
9 µg/L 90%
of the EPA limit 10 µg/L
 57/65 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
14.9 µg/L 25%
of the EPA limit 60 µg/L
 42/96 SYR4 2012–2019
Nitrate
4240 µg/L 42%
of the EPA limit 10000 µg/L
 34/34 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2026
Barium
170 µg/L 8.5%
of the EPA limit 2000 µg/L
 4/4 SYR4 2014–2017
Bromoform
4.8 µg/L
No EPA limit set
 4/4 SYR4 2019
Chromium
30.7 µg/L 31%
of the EPA limit 100 µg/L
 4/4 SYR4 2014–2017
Dibromochloromethane
3.3 µg/L
No EPA limit set
 4/4 SYR4 2019
Fluoride
1920 µg/L 48%
of the EPA limit 4000 µg/L
 4/4 SYR4 2014–2017
Lithium
253 µg/L
No EPA limit set
 4/4 UCMR-5 2025
Lead
15.1 µg/L 101%
of the EPA limit, in the worst sample — 15 µg/L
 3/65 SYR4 2014–2017
Nitrate-Nitrite
2450 µg/L 25%
of the EPA limit 10000 µg/L
 3/3 SYR4 2014–2019
Xylenes, Total
2850 µg/L 28%
of the EPA limit 10000 µg/L
 3/12 SYR4 2014–2019
Bromodichloromethane
1.3 µg/L
No EPA limit set
 2/4 SYR4 2019
Diquat
0.3300 µg/L 1.7%
of the EPA limit 20 µg/L
 1/14 SYR4 2014–2017
Ethylbenzene
5.7 µg/L 0.8%
of the EPA limit 700 µg/L
 1/12 SYR4 2014–2019
Pentachlorophenol
0.0590 µg/L 5.9%
of the EPA limit 1 µg/L
 1/14 SYR4 2014–2017
Selenium
2.93 µg/L 5.9%
of the EPA limit 50 µg/L
 1/4 SYR4 2014–2017
91 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 TetrachlorideChlordaneChloroformCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDichloroacetic AcidDinosebEthylene DibromideEndothallEndrinGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about City of Buckeye Sonora - Sundance

Is City of Buckeye Sonora - Sundance tap water safe to drink?

EPA monitoring detected 20 contaminants in City of Buckeye Sonora - Sundance'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 City of Buckeye Sonora - Sundance's water?

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

How many people does City of Buckeye Sonora - Sundance serve?

City of Buckeye Sonora - Sundance reports serving 15,783 people, per its EPA record.

Has City of Buckeye Sonora - Sundance had any water quality violations?

The EPA has 135 violations on file for City of Buckeye Sonora - Sundance, 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.