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Community Water System · PWS AZ0404047

Tonto Basin Water - Lr Gardens West

Payson, Arizona 85541 - drinking water served from groundwater sources to 1,172 people, tracked in EPA SDWIS and UCMR5.

1,172
People served
356
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 356 drinking-water violations at Tonto Basin Water - Lr Gardens West, 2% of them health-based - above the Arizona per-system average.

356
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
1,172
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Tonto Basin Water - Lr Gardens West

Tonto Basin Water - Lr Gardens West is a private-owned community water system that delivers drinking water to 1,172 residents in Payson, Arizona (Gila County) through 503 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 356 total violations for this system , of which 6 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 331 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 23 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%).

Tonto Basin Water - Lr Gardens West's 356 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
1,172
Total Violations
356
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
503
County
Gila
School/Daycare
No
MCL Violations
6
Monitoring Violations
331
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 23 2016
1,1,2-Trichloroethane MR 13 2013
1,1-Dichloroethylene MR 13 2013
Tetrachloroethylene MR 13 2013
CHLOROBENZENE MR 13 2013
Benzene MR 13 2013
trans-1,2-Dichloroethylene MR 13 2013
1,1,1-Trichloroethane MR 13 2013
o-Dichlorobenzene MR 13 2013
p-Dichlorobenzene MR 13 2013
1,2-Dichloroethane MR 13 2013
Carbon tetrachloride MR 13 2013
1,2-Dichloropropane MR 13 2013
cis-1,2-Dichloroethylene MR 13 2013
DICHLOROMETHANE MR 13 2013
Ethylbenzene MR 13 2013
Styrene MR 13 2013
Toluene MR 13 2013
Trichloroethylene MR 13 2013
Consumer Confidence Rule Other 12 2025
Xylenes, Total MR 12 2013
1,2,4-Trichlorobenzene MR 12 2013
Coliform (TCR) MR 8 2016
Coliform (TCR) MCL 6 2016
Nitrate MR 5 2007
Vinyl chloride MR 4 2013
Lead and Copper Rule MR 3 2006
Gross Alpha, Excl. Radon and U MR 2 1989
Diquat MR 1 1998
Endothall MR 1 1998

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 Tonto Basin Water - Lr Gardens West.

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 AZ0404047 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 Tonto Basin Water - Lr Gardens West 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 12 SDWIS / AZ0404047 / 7000
2016 Chlorine MR 23 SDWIS / AZ0404047 / 0999
2016 Coliform (TCR) MR 8 SDWIS / AZ0404047 / 3100
2016 Coliform (TCR) MCL 6 SDWIS / AZ0404047 / 3100
2013 1,1,2-Trichloroethane MR 13 SDWIS / AZ0404047 / 2985
2013 1,1-Dichloroethylene MR 13 SDWIS / AZ0404047 / 2977
2013 Tetrachloroethylene MR 13 SDWIS / AZ0404047 / 2987
2013 CHLOROBENZENE MR 13 SDWIS / AZ0404047 / 2989
2013 Benzene MR 13 SDWIS / AZ0404047 / 2990
2013 trans-1,2-Dichloroethylene MR 13 SDWIS / AZ0404047 / 2979
2013 1,1,1-Trichloroethane MR 13 SDWIS / AZ0404047 / 2981
2013 o-Dichlorobenzene MR 13 SDWIS / AZ0404047 / 2968
2013 p-Dichlorobenzene MR 13 SDWIS / AZ0404047 / 2969
2013 1,2-Dichloroethane MR 13 SDWIS / AZ0404047 / 2980
2013 Carbon tetrachloride MR 13 SDWIS / AZ0404047 / 2982

How Tonto Basin Water - Lr Gardens West Compares

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

Metric Tonto Basin Water - Lr Gardens West Arizona avg Federal benchmark
Total violations 356 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 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 1,172 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 Tonto Basin Water - Lr Gardens West water safe to drink? ▼
Tonto Basin Water - Lr Gardens West (PWS ID: AZ0404047) has 356 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,172 people using Groundwater sources.
How many people does Tonto Basin Water - Lr Gardens West serve? ▼
Tonto Basin Water - Lr Gardens West serves 1,172 people in Payson, Arizona. It is a Private-owned system using Groundwater water sources with 503 service connections.
What type of violations does Tonto Basin Water - Lr Gardens West have? ▼
Tonto Basin Water - Lr Gardens West has 356 total violations: 6 health-based violations (MCL exceedances or treatment failures), 331 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Tonto Basin Water - Lr Gardens West water? ▼
No PFAS testing data is available for Tonto Basin Water - Lr Gardens West under the EPA's UCMR5 monitoring program.
What water source does Tonto Basin Water - Lr Gardens West use? ▼
Tonto Basin Water - Lr Gardens West 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.