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Community Water System · PWS AZ0411042

Picacho Dwid

Picacho, Arizona 85141 - drinking water served from groundwater sources to 340 people, tracked in EPA SDWIS and UCMR5.

340
People served
471
EPA violations
25
Health-based
Untested
UCMR5 result

The verdict

EPA records 471 drinking-water violations at Picacho Dwid, 5% of them health-based - above the Arizona per-system average.

471
Total EPA violations on record
5%
Health-based (MCL / treatment failure)
340
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Picacho Dwid

Picacho Dwid is a private-owned community water system that delivers drinking water to 340 residents in Picacho, Arizona (Pinal County) through 119 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 471 total violations for this system , of which 25 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 376 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 68 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%).

Picacho Dwid's 471 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
340
Total Violations
471
Health-Based Violations
25
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
119
County
Pinal
School/Daycare
No
MCL Violations
25
Monitoring Violations
376
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 68 2016
Nitrate MR 62 2014
Arsenic MR 44 2020
Chlorine MR 40 2024
Consumer Confidence Rule Other 36 2023
Gross Alpha, Excl. Radon and U MR 28 2023
Arsenic MCL 24 2020
Lead and Copper Rule MR 8 2024
Public Notice Other 8 2023
Revised Total Coliform Rule RPT 5 2018
TTHM MR 4 2015
Total Haloacetic Acids (HAA5) MR 4 2015
Revised Total Coliform Rule MON 4 2016
Chromium MR 4 2015
Selenium MR 4 2015
Fluoride MR 4 2015
1,2,4-Trichlorobenzene MR 4 2000
cis-1,2-Dichloroethylene MR 4 2000
DICHLOROMETHANE MR 4 2000
p-Dichlorobenzene MR 4 2000
1,1-Dichloroethylene MR 4 2000
1,2-Dichloroethane MR 4 2000
1,1,1-Trichloroethane MR 4 2000
Trichloroethylene MR 4 2000
1,1,2-Trichloroethane MR 4 2000
Tetrachloroethylene MR 4 2000
Toluene MR 4 2000
Xylenes, Total MR 4 2000
trans-1,2-Dichloroethylene MR 4 2000
Carbon tetrachloride MR 4 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 Picacho 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 AZ0411042 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 Picacho 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
2024 Chlorine MR 40 SDWIS / AZ0411042 / 0999
2024 Lead and Copper Rule MR 8 SDWIS / AZ0411042 / 5000
2023 Consumer Confidence Rule Other 36 SDWIS / AZ0411042 / 7000
2023 Gross Alpha, Excl. Radon and U MR 28 SDWIS / AZ0411042 / 4000
2023 Public Notice Other 8 SDWIS / AZ0411042 / 7500
2020 Arsenic MR 44 SDWIS / AZ0411042 / 1005
2020 Arsenic MCL 24 SDWIS / AZ0411042 / 1005
2018 Revised Total Coliform Rule RPT 5 SDWIS / AZ0411042 / 8000
2016 Coliform (TCR) MR 68 SDWIS / AZ0411042 / 3100
2016 Revised Total Coliform Rule MON 4 SDWIS / AZ0411042 / 8000
2015 TTHM MR 4 SDWIS / AZ0411042 / 2950
2015 Total Haloacetic Acids (HAA5) MR 4 SDWIS / AZ0411042 / 2456
2015 Chromium MR 4 SDWIS / AZ0411042 / 1020
2015 Selenium MR 4 SDWIS / AZ0411042 / 1045
2015 Fluoride MR 4 SDWIS / AZ0411042 / 1025

How Picacho Dwid Compares

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

Metric Picacho Dwid Arizona avg Federal benchmark
Total violations 471 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 25 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 340 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 Picacho Dwid water safe to drink? ▼
Picacho Dwid (PWS ID: AZ0411042) has 471 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 340 people using Groundwater sources.
How many people does Picacho Dwid serve? ▼
Picacho Dwid serves 340 people in Picacho, Arizona. It is a Private-owned system using Groundwater water sources with 119 service connections.
What type of violations does Picacho Dwid have? ▼
Picacho Dwid has 471 total violations: 25 health-based violations (MCL exceedances or treatment failures), 376 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Picacho Dwid water? ▼
No PFAS testing data is available for Picacho Dwid under the EPA's UCMR5 monitoring program.
What water source does Picacho Dwid use? ▼
Picacho 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.