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Community Water System · PWS AZ0414070

Jones Coop Water Assoc

Yuma, Arizona 85365-6955 - drinking water served from groundwater sources to 35 people, tracked in EPA SDWIS and UCMR5.

35
People served
363
EPA violations
55
Health-based
Untested
UCMR5 result

The verdict

EPA records 363 drinking-water violations at Jones Coop Water Assoc, 15% of them health-based - above the Arizona per-system average.

363
Total EPA violations on record
15%
Health-based (MCL / treatment failure)
35
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Jones Coop Water Assoc

Jones Coop Water Assoc is a public/private-owned community water system that delivers drinking water to 35 residents in Yuma, Arizona (Yuma County) through 20 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 363 total violations for this system , of which 55 (15%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 221 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 Coliform (TCR), recorded in 61 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%).

Jones Coop Water Assoc's 363 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
35
Total Violations
363
Health-Based Violations
55
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Public/Private
Connections
20
County
Yuma
School/Daycare
No
MCL Violations
41
Monitoring Violations
221
Treatment Tech Violations
14

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 61 2016
Consumer Confidence Rule Other 53 2025
Arsenic MCL 40 2024
Lead and Copper Rule MR 27 2025
Arsenic MR 23 2021
Public Notice Other 17 2025
Groundwater Rule TT 12 2022
Nitrate MR 12 2004
Revised Total Coliform Rule RPT 11 2025
Revised Total Coliform Rule MON 8 2024
LEAD AND COPPER RULE REVISIONS TT 2 2024
Barium MR 2 1998
Cadmium MR 2 1998
Chromium MR 2 1998
Fluoride MR 2 1998
Mercury MR 2 1998
Selenium MR 2 1998
1,2,4-Trichlorobenzene MR 2 2002
cis-1,2-Dichloroethylene MR 2 2002
o-Dichlorobenzene MR 2 2002
p-Dichlorobenzene MR 2 2002
1,1-Dichloroethylene MR 2 2002
1,2-Dichloroethane MR 2 2002
1,1,1-Trichloroethane MR 2 2002
1,2-Dichloropropane MR 2 2002
Trichloroethylene MR 2 2002
Benzene MR 2 2002
Styrene MR 2 2002
Xylenes, Total MR 2 2002
trans-1,2-Dichloroethylene MR 2 2002

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 Jones Coop Water Assoc.

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 AZ0414070 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 Jones Coop Water Assoc 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 Consumer Confidence Rule Other 53 SDWIS / AZ0414070 / 7000
2025 Lead and Copper Rule MR 27 SDWIS / AZ0414070 / 5000
2025 Public Notice Other 17 SDWIS / AZ0414070 / 7500
2025 Revised Total Coliform Rule RPT 11 SDWIS / AZ0414070 / 8000
2024 Arsenic MCL 40 SDWIS / AZ0414070 / 1005
2024 Revised Total Coliform Rule MON 8 SDWIS / AZ0414070 / 8000
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / AZ0414070 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / AZ0414070 / 5200
2022 Groundwater Rule TT 12 SDWIS / AZ0414070 / 0700
2021 Arsenic MR 23 SDWIS / AZ0414070 / 1005
2016 Coliform (TCR) MR 61 SDWIS / AZ0414070 / 3100
2015 E. COLI MR 1 SDWIS / AZ0414070 / 3014
2004 Nitrate MR 12 SDWIS / AZ0414070 / 1040
2002 1,2,4-Trichlorobenzene MR 2 SDWIS / AZ0414070 / 2378
2002 cis-1,2-Dichloroethylene MR 2 SDWIS / AZ0414070 / 2380

How Jones Coop Water Assoc Compares

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

Metric Jones Coop Water Assoc Arizona avg Federal benchmark
Total violations 363 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 55 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 35 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 Jones Coop Water Assoc water safe to drink? ▼
Jones Coop Water Assoc (PWS ID: AZ0414070) has 363 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 35 people using Groundwater sources.
How many people does Jones Coop Water Assoc serve? ▼
Jones Coop Water Assoc serves 35 people in Yuma, Arizona. It is a Public/Private-owned system using Groundwater water sources with 20 service connections.
What type of violations does Jones Coop Water Assoc have? ▼
Jones Coop Water Assoc has 363 total violations: 55 health-based violations (MCL exceedances or treatment failures), 221 monitoring/reporting violations, and 14 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Jones Coop Water Assoc water? ▼
No PFAS testing data is available for Jones Coop Water Assoc under the EPA's UCMR5 monitoring program.
What water source does Jones Coop Water Assoc use? ▼
Jones Coop Water Assoc 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.