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Community Water System · PWS AZ0402012

Pomerene Dwid

Pomerene, Arizona 85627 - drinking water served from groundwater sources to 1,030 people, tracked in EPA SDWIS and UCMR5.

1,030
People served
337
EPA violations
42
Health-based
Untested
UCMR5 result

The verdict

EPA records 337 drinking-water violations at Pomerene Dwid, 12% of them health-based - above the Arizona per-system average.

337
Total EPA violations on record
12%
Health-based (MCL / treatment failure)
1,030
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Pomerene Dwid

Pomerene Dwid is a private-owned community water system that delivers drinking water to 1,030 residents in Pomerene, Arizona (Cochise County) through 425 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 337 total violations for this system , of which 42 (12%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 230 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 Arsenic, recorded in 124 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%).

Pomerene Dwid's 337 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
1,030
Total Violations
337
Health-Based Violations
42
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
425
County
Cochise
School/Daycare
No
MCL Violations
31
Monitoring Violations
230
Treatment Tech Violations
11

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MR 124 2024
Consumer Confidence Rule Other 35 2024
Arsenic MCL 25 2025
Coliform (TCR) MR 14 2015
Chlorine MR 11 2008
Nitrate MR 10 2009
Lead and Copper Rule MR 7 2020
Public Notice Other 7 2025
Revised Total Coliform Rule TT 7 2021
Revised Total Coliform Rule MON 6 2023
E. COLI MR 5 2019
Revised Total Coliform Rule RPT 4 2019
Fluoride MR 4 2025
LEAD AND COPPER RULE REVISIONS RPT 4 2024
Coliform (TCR) MCL 4 2014
LEAD AND COPPER RULE REVISIONS TT 4 2024
Total Haloacetic Acids (HAA5) MR 3 2008
TTHM MR 3 2008
trans-1,2-Dichloroethylene MR 2 2001
1,2-Dichloroethane MR 2 2001
1,1,1-Trichloroethane MR 2 2001
Carbon tetrachloride MR 2 2001
1,2-Dichloropropane MR 2 2001
1,1,2-Trichloroethane MR 2 2001
Benzene MR 2 2001
Ethylbenzene MR 2 2001
cis-1,2-Dichloroethylene MR 2 2001
Fluoride MCL 2 2025
DICHLOROMETHANE MR 2 2001
o-Dichlorobenzene MR 2 2001

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 Pomerene 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 AZ0402012 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 Pomerene 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 Arsenic MCL 25 SDWIS / AZ0402012 / 1005
2025 Public Notice Other 7 SDWIS / AZ0402012 / 7500
2025 Fluoride MR 4 SDWIS / AZ0402012 / 1025
2025 Fluoride MCL 2 SDWIS / AZ0402012 / 1025
2024 Arsenic MR 124 SDWIS / AZ0402012 / 1005
2024 Consumer Confidence Rule Other 35 SDWIS / AZ0402012 / 7000
2024 LEAD AND COPPER RULE REVISIONS RPT 4 SDWIS / AZ0402012 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 4 SDWIS / AZ0402012 / 5200
2023 Revised Total Coliform Rule MON 6 SDWIS / AZ0402012 / 8000
2021 Revised Total Coliform Rule TT 7 SDWIS / AZ0402012 / 8000
2020 Lead and Copper Rule MR 7 SDWIS / AZ0402012 / 5000
2019 E. COLI MR 5 SDWIS / AZ0402012 / 3014
2019 Revised Total Coliform Rule RPT 4 SDWIS / AZ0402012 / 8000
2015 Coliform (TCR) MR 14 SDWIS / AZ0402012 / 3100
2014 Coliform (TCR) MCL 4 SDWIS / AZ0402012 / 3100

How Pomerene Dwid Compares

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

Metric Pomerene Dwid Arizona avg Federal benchmark
Total violations 337 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 42 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 1,030 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 Pomerene Dwid water safe to drink? ▼
Pomerene Dwid (PWS ID: AZ0402012) has 337 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,030 people using Groundwater sources.
How many people does Pomerene Dwid serve? ▼
Pomerene Dwid serves 1,030 people in Pomerene, Arizona. It is a Private-owned system using Groundwater water sources with 425 service connections.
What type of violations does Pomerene Dwid have? ▼
Pomerene Dwid has 337 total violations: 42 health-based violations (MCL exceedances or treatment failures), 230 monitoring/reporting violations, and 11 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Pomerene Dwid water? ▼
No PFAS testing data is available for Pomerene Dwid under the EPA's UCMR5 monitoring program.
What water source does Pomerene Dwid use? ▼
Pomerene 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.