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Community Water System · PWS AZ0404023

Cs Tonto Village Water Company

Des Peres, Arizona 63131 - drinking water served from groundwater sources to 512 people, tracked in EPA SDWIS and UCMR5.

512
People served
459
EPA violations
5
Health-based
Untested
UCMR5 result

The verdict

EPA records 459 drinking-water violations at Cs Tonto Village Water Company, 1% of them health-based - above the Arizona per-system average.

459
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
512
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Cs Tonto Village Water Company

Cs Tonto Village Water Company is a private-owned community water system that delivers drinking water to 512 residents in Des Peres, Arizona (Gila County) through 200 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 459 total violations for this system , of which 5 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 375 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 Chlorine, recorded in 44 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%).

Cs Tonto Village Water Company's 459 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
512
Total Violations
459
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
200
County
Gila
School/Daycare
No
MCL Violations
1
Monitoring Violations
375
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 44 2019
Revised Total Coliform Rule RPT 35 2021
Lead and Copper Rule MR 22 2020
Coliform (TCR) MR 20 2016
Nitrate MR 19 2015
Consumer Confidence Rule Other 15 2015
trans-1,2-Dichloroethylene MR 11 2015
1,1,1-Trichloroethane MR 11 2015
Carbon tetrachloride MR 11 2015
1,2-Dichloropropane MR 11 2015
Trichloroethylene MR 11 2015
CHLOROBENZENE MR 11 2015
Toluene MR 11 2015
1,2,4-Trichlorobenzene MR 11 2015
DICHLOROMETHANE MR 11 2015
o-Dichlorobenzene MR 11 2015
1,1-Dichloroethylene MR 11 2015
1,2-Dichloroethane MR 11 2015
Benzene MR 11 2015
Xylenes, Total MR 11 2015
1,1,2-Trichloroethane MR 11 2015
Tetrachloroethylene MR 11 2015
Ethylbenzene MR 11 2015
cis-1,2-Dichloroethylene MR 11 2015
Styrene MR 11 2015
p-Dichlorobenzene MR 11 2015
TTHM MR 6 2017
Total Haloacetic Acids (HAA5) MR 6 2017
Vinyl chloride MR 5 2015
Revised Total Coliform Rule MON 4 2016

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 Cs Tonto Village Water Company.

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 AZ0404023 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 Cs Tonto Village Water Company 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 E. COLI MR 4 SDWIS / AZ0404023 / 3014
2023 Revised Total Coliform Rule TT 4 SDWIS / AZ0404023 / 8000
2023 Public Notice Other 4 SDWIS / AZ0404023 / 7500
2021 Revised Total Coliform Rule RPT 35 SDWIS / AZ0404023 / 8000
2020 Lead and Copper Rule MR 22 SDWIS / AZ0404023 / 5000
2019 Chlorine MR 44 SDWIS / AZ0404023 / 0999
2017 TTHM MR 6 SDWIS / AZ0404023 / 2950
2017 Total Haloacetic Acids (HAA5) MR 6 SDWIS / AZ0404023 / 2456
2016 Coliform (TCR) MR 20 SDWIS / AZ0404023 / 3100
2016 Revised Total Coliform Rule MON 4 SDWIS / AZ0404023 / 8000
2015 Nitrate MR 19 SDWIS / AZ0404023 / 1040
2015 Consumer Confidence Rule Other 15 SDWIS / AZ0404023 / 7000
2015 trans-1,2-Dichloroethylene MR 11 SDWIS / AZ0404023 / 2979
2015 1,1,1-Trichloroethane MR 11 SDWIS / AZ0404023 / 2981
2015 Carbon tetrachloride MR 11 SDWIS / AZ0404023 / 2982

How Cs Tonto Village Water Company Compares

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

Metric Cs Tonto Village Water Company Arizona avg Federal benchmark
Total violations 459 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 5 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 512 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 Cs Tonto Village Water Company water safe to drink? ▼
Cs Tonto Village Water Company (PWS ID: AZ0404023) has 459 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 512 people using Groundwater sources.
How many people does Cs Tonto Village Water Company serve? ▼
Cs Tonto Village Water Company serves 512 people in Des Peres, Arizona. It is a Private-owned system using Groundwater water sources with 200 service connections.
What type of violations does Cs Tonto Village Water Company have? ▼
Cs Tonto Village Water Company has 459 total violations: 5 health-based violations (MCL exceedances or treatment failures), 375 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Cs Tonto Village Water Company water? ▼
No PFAS testing data is available for Cs Tonto Village Water Company under the EPA's UCMR5 monitoring program.
What water source does Cs Tonto Village Water Company use? ▼
Cs Tonto Village Water Company 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.