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Community Water System · PWS AZ0409014

Heber Dwid

Heber, Arizona 84928 - drinking water served from groundwater sources to 839 people, tracked in EPA SDWIS and UCMR5.

839
People served
225
EPA violations
16
Health-based
Untested
UCMR5 result

The verdict

EPA records 225 drinking-water violations at Heber Dwid, 7% of them health-based - above the Arizona per-system average.

225
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
839
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Heber Dwid

Heber Dwid is a private-owned community water system that delivers drinking water to 839 residents in Heber, Arizona (Navajo County) through 325 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 225 total violations for this system , of which 16 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 177 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 43 violations (MR). 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%).

Heber Dwid's 225 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
839
Total Violations
225
Health-Based Violations
16
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
325
County
Navajo
School/Daycare
No
MCL Violations
3
Monitoring Violations
177
Treatment Tech Violations
13

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 43 2023
Coliform (TCR) MR 40 2016
TTHM MR 25 2023
Total Haloacetic Acids (HAA5) MR 25 2023
Groundwater Rule TT 13 2024
Nitrate MR 12 2007
Consumer Confidence Rule Other 11 2016
Lead and Copper Rule MR 10 2025
Arsenic MR 9 2022
Gross Alpha, Excl. Radon and U MR 5 1989
Revised Total Coliform Rule RPT 4 2023
Coliform (TCR) MCL 3 2003
Endothall MR 2 2000
Public Notice Other 2 2024
Mercury MR 1 1988
Fluoride MR 1 1988
Chromium MR 1 1988
Selenium MR 1 1988
Cadmium MR 1 1988
Barium MR 1 1988

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 Heber 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 AZ0409014 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 Heber 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
2025 Lead and Copper Rule MR 10 SDWIS / AZ0409014 / 5000
2024 Groundwater Rule TT 13 SDWIS / AZ0409014 / 0700
2024 Public Notice Other 2 SDWIS / AZ0409014 / 7500
2023 Chlorine MR 43 SDWIS / AZ0409014 / 0999
2023 TTHM MR 25 SDWIS / AZ0409014 / 2950
2023 Total Haloacetic Acids (HAA5) MR 25 SDWIS / AZ0409014 / 2456
2023 Revised Total Coliform Rule RPT 4 SDWIS / AZ0409014 / 8000
2022 Arsenic MR 9 SDWIS / AZ0409014 / 1005
2016 Coliform (TCR) MR 40 SDWIS / AZ0409014 / 3100
2016 Consumer Confidence Rule Other 11 SDWIS / AZ0409014 / 7000
2007 Nitrate MR 12 SDWIS / AZ0409014 / 1040
2003 Coliform (TCR) MCL 3 SDWIS / AZ0409014 / 3100
2000 Endothall MR 2 SDWIS / AZ0409014 / 2033
1989 Gross Alpha, Excl. Radon and U MR 5 SDWIS / AZ0409014 / 4000
1988 Mercury MR 1 SDWIS / AZ0409014 / 1035

How Heber Dwid Compares

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

Metric Heber Dwid Arizona avg Federal benchmark
Total violations 225 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 16 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 839 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 Heber Dwid water safe to drink? ▼
Heber Dwid (PWS ID: AZ0409014) has 225 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 839 people using Groundwater sources.
How many people does Heber Dwid serve? ▼
Heber Dwid serves 839 people in Heber, Arizona. It is a Private-owned system using Groundwater water sources with 325 service connections.
What type of violations does Heber Dwid have? ▼
Heber Dwid has 225 total violations: 16 health-based violations (MCL exceedances or treatment failures), 177 monitoring/reporting violations, and 13 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Heber Dwid water? ▼
No PFAS testing data is available for Heber Dwid under the EPA's UCMR5 monitoring program.
What water source does Heber Dwid use? ▼
Heber 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.