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Community Water System · PWS AZ0415023

Wenden Dwid

Wenden, Arizona 85357 - drinking water served from groundwater sources to 360 people, tracked in EPA SDWIS and UCMR5.

360
People served
311
EPA violations
113
Health-based
Untested
UCMR5 result

The verdict

EPA records 311 drinking-water violations at Wenden Dwid, 36% of them health-based - above the Arizona per-system average.

311
Total EPA violations on record
36%
Health-based (MCL / treatment failure)
360
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Wenden Dwid

Wenden Dwid is a private-owned community water system that delivers drinking water to 360 residents in Wenden, Arizona (La Paz County) through 235 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 311 total violations for this system , of which 113 (36%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 138 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Arsenic, recorded in 66 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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%).

Wenden Dwid's 311 violations sit above 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
360
Total Violations
311
Health-Based Violations
113
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
235
County
La Paz
School/Daycare
No
MCL Violations
113
Monitoring Violations
138
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 66 2017
Fluoride MCL 21 2009
Coliform (TCR) MR 20 2012
Chlorine MR 14 2013
Consumer Confidence Rule Other 14 2014
Public Notice Other 14 2023
TTHM MCL 13 2020
Total Haloacetic Acids (HAA5) MCL 13 2020
Arsenic MR 10 2014
TTHM MR 6 2020
Total Haloacetic Acids (HAA5) MR 6 2020
Fluoride MR 6 2014
Lead and Copper Rule MR 4 2013
Chromium MR 4 2015
Nickel MR 3 2015
CYANIDE MR 3 2015
Selenium MR 3 2015
Thallium, Total MR 3 2015
Barium MR 3 2015
Mercury MR 3 2015
Beryllium, Total MR 3 2015
Cadmium MR 3 2015
Antimony, Total MR 3 2015
Xylenes, Total MR 2 2000
p-Dichlorobenzene MR 2 2000
1,1,1-Trichloroethane MR 2 2000
Carbon tetrachloride MR 2 2000
Tetrachloroethylene MR 2 2000
CHLOROBENZENE MR 2 2000
Benzene MR 2 2000

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 Wenden Dwid.

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 AZ0415023 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 Wenden Dwid 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
2023 Public Notice Other 14 SDWIS / AZ0415023 / 7500
2020 TTHM MCL 13 SDWIS / AZ0415023 / 2950
2020 Total Haloacetic Acids (HAA5) MCL 13 SDWIS / AZ0415023 / 2456
2020 TTHM MR 6 SDWIS / AZ0415023 / 2950
2020 Total Haloacetic Acids (HAA5) MR 6 SDWIS / AZ0415023 / 2456
2017 Arsenic MCL 66 SDWIS / AZ0415023 / 1005
2015 Chromium MR 4 SDWIS / AZ0415023 / 1020
2015 Nickel MR 3 SDWIS / AZ0415023 / 1036
2015 CYANIDE MR 3 SDWIS / AZ0415023 / 1024
2015 Selenium MR 3 SDWIS / AZ0415023 / 1045
2015 Thallium, Total MR 3 SDWIS / AZ0415023 / 1085
2015 Barium MR 3 SDWIS / AZ0415023 / 1010
2015 Mercury MR 3 SDWIS / AZ0415023 / 1035
2015 Beryllium, Total MR 3 SDWIS / AZ0415023 / 1075
2015 Cadmium MR 3 SDWIS / AZ0415023 / 1015

How Wenden Dwid Compares

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

Metric Wenden Dwid Arizona avg Federal benchmark
Total violations 311 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 113 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 360 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 Wenden Dwid water safe to drink? ▼
Wenden Dwid (PWS ID: AZ0415023) has 311 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 360 people using Groundwater sources.
How many people does Wenden Dwid serve? ▼
Wenden Dwid serves 360 people in Wenden, Arizona. It is a Private-owned system using Groundwater water sources with 235 service connections.
What type of violations does Wenden Dwid have? ▼
Wenden Dwid has 311 total violations: 113 health-based violations (MCL exceedances or treatment failures), 138 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Wenden Dwid water? ▼
No PFAS testing data is available for Wenden Dwid under the EPA's UCMR5 monitoring program.
What water source does Wenden Dwid use? ▼
Wenden Dwid 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. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

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.