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Community Water System · PWS AZ0407154

City of Buckeye Sonora - Sundance

Buckeye, Arizona 85326 - drinking water served from groundwater sources to 15,783 people, tracked in EPA SDWIS and UCMR5.

15,783
People served
137
EPA violations
2
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 137 drinking-water violations at City of Buckeye Sonora - Sundance, 1% of them health-based - below the Arizona per-system average.

137
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
15,783
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: City of Buckeye Sonora - Sundance

City of Buckeye Sonora - Sundance is a local-owned community water system that delivers drinking water to 15,783 residents in Buckeye, Arizona (Maricopa County) through 5,297 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 137 total violations for this system , of which 2 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 114 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Chlorine, recorded in 22 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

Across Arizona, EPA tracks 1,493 public water systems serving 7,322,166 people, with 228,944 cumulative violations and 15,663 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 153.3 violations. Statewide, 145 of 152 UCMR5-tested systems have reported PFAS detections (95.4%).

City of Buckeye Sonora - Sundance's 137 violations sit below the Arizona average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
15,783
Total Violations
137
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
5,297
County
Maricopa
School/Daycare
No
MCL Violations
2
Monitoring Violations
114
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 22 2022
Nitrate MR 21 2007
Coliform (TCR) MR 14 2009
Consumer Confidence Rule Other 11 2024
Arsenic MR 11 2017
Total Haloacetic Acids (HAA5) MR 8 2023
TTHM MR 8 2023
Revised Total Coliform Rule RPT 5 2020
Fluoride MR 3 1987
Selenium MR 3 1987
Barium MR 3 1987
Mercury MR 3 1987
Chromium MR 3 1987
Cadmium MR 3 1987
Lead and Copper Rule MR 3 2025
Xylenes, Total MR 2 2014
Benzo(a)pyrene MR 2 2014
Coliform (TCR) MCL 2 2005
Gross Alpha, Excl. Radon and U MR 1 2004
Combined Uranium MR 1 2004
Radium-228 MR 1 2004
Radium-226 MR 1 2004
Combined Radium (-226 and -228) MR 1 2004

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpS 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 7/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFMPA 7/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFMBA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 7/3/2024 <20.00 ppt 20.00 ppt Not Detected
PFPeS 7/3/2024 <4.00 ppt 4.00 ppt Not Detected
NMeFOSAA 7/3/2024 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 7/3/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 7/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFTA 7/3/2024 <8.00 ppt 8.00 ppt Not Detected
PFHxA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 7/3/2024 <7.00 ppt 7.00 ppt Not Detected
PFDoA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 7/3/2024 <4.00 ppt 4.00 ppt Not Detected
11Cl-PF3OUdS 7/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFDA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFBA 7/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 7/3/2024 <2.00 ppt 2.00 ppt Not Detected
9Cl-PF3ONS 7/3/2024 <2.00 ppt 2.00 ppt Not Detected
ADONA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 7/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFOA 7/3/2024 <4.00 ppt 4.00 ppt Not Detected
ADONA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 7/3/2024 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 7/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 7/3/2024 <7.00 ppt 7.00 ppt Not Detected
PFTA 7/3/2024 <8.00 ppt 8.00 ppt Not Detected
PFHpA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 7/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 7/3/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 7/3/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 7/3/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 7/3/2024 <2.00 ppt 2.00 ppt Not Detected
PFMBA 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFHpS 7/3/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 7/3/2024 <4.00 ppt 4.00 ppt Not Detected
HFPO-DA 7/3/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 7/3/2024 <5.00 ppt 5.00 ppt Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for City of Buckeye Sonora - Sundance.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AZ0407154 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arizona Drinking Water Authority

Arizona DEQ, Drinking Water Program is the primacy agency that licenses and inspects City of Buckeye Sonora - Sundance under EPA-delegated authority.

Open AZ regulator portal

Source: Arizona DEQ, Drinking Water Program

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Lead and Copper Rule MR 3 SDWIS / AZ0407154 / 5000
2024 Consumer Confidence Rule Other 11 SDWIS / AZ0407154 / 7000
2023 Total Haloacetic Acids (HAA5) MR 8 SDWIS / AZ0407154 / 2456
2023 TTHM MR 8 SDWIS / AZ0407154 / 2950
2022 Chlorine MR 22 SDWIS / AZ0407154 / 0999
2020 Revised Total Coliform Rule RPT 5 SDWIS / AZ0407154 / 8000
2017 Arsenic MR 11 SDWIS / AZ0407154 / 1005
2014 Xylenes, Total MR 2 SDWIS / AZ0407154 / 2955
2014 Benzo(a)pyrene MR 2 SDWIS / AZ0407154 / 2306
2009 Coliform (TCR) MR 14 SDWIS / AZ0407154 / 3100
2007 Nitrate MR 21 SDWIS / AZ0407154 / 1040
2005 Coliform (TCR) MCL 2 SDWIS / AZ0407154 / 3100
2004 Gross Alpha, Excl. Radon and U MR 1 SDWIS / AZ0407154 / 4000
2004 Combined Uranium MR 1 SDWIS / AZ0407154 / 4006
2004 Radium-228 MR 1 SDWIS / AZ0407154 / 4030

How City of Buckeye Sonora - Sundance Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric City of Buckeye Sonora - Sundance Arizona avg Federal benchmark
Total violations 137 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 95.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 15,783 4,904 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,493 regulated public water systems in Arizona.

Federal MCL reference, Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is City of Buckeye Sonora - Sundance water safe to drink?
City of Buckeye Sonora - Sundance (PWS ID: AZ0407154) has 137 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 15,783 people using Groundwater sources.
How many people does City of Buckeye Sonora - Sundance serve?
City of Buckeye Sonora - Sundance serves 15,783 people in Buckeye, Arizona. It is a Local-owned system using Groundwater water sources with 5,297 service connections.
What type of violations does City of Buckeye Sonora - Sundance have?
City of Buckeye Sonora - Sundance has 137 total violations: 2 health-based violations (MCL exceedances or treatment failures), 114 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in City of Buckeye Sonora - Sundance water?
No. City of Buckeye Sonora - Sundance was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does City of Buckeye Sonora - Sundance use?
City of Buckeye Sonora - Sundance uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.