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Community Water System · PWS AZ0404036

Tonto Basin Water Roosevelt Lake Estates

Payson, Arizona 85541 - drinking water served from groundwater sources to 508 people, tracked in EPA SDWIS and UCMR5.

508
People served
181
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 181 drinking-water violations at Tonto Basin Water Roosevelt Lake Estates - above the Arizona per-system average.

181
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
508
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Tonto Basin Water Roosevelt Lake Estates

Tonto Basin Water Roosevelt Lake Estates is a private-owned community water system that delivers drinking water to 508 residents in Payson, Arizona (Gila County) through 218 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 181 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 163 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 25 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 Roosevelt Lake Estates's 181 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
508
Total Violations
181
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
218
County
Gila
School/Daycare
No
MCL Violations
0
Monitoring Violations
163
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 25 2009
Nitrate MR 12 2009
Consumer Confidence Rule Other 11 2025
Coliform (TCR) MR 8 2015
Xylenes, Total MR 4 2002
1,2,4-Trichlorobenzene MR 4 2002
Gross Alpha, Excl. Radon and U MR 3 1990
2,4,5-TP MR 2 1998
HEXACHLOROBENZENE MR 2 1998
Pentachlorophenol MR 2 1998
ETHYLENE DIBROMIDE MR 2 1998
p-Dichlorobenzene MR 2 1998
1,1-Dichloroethylene MR 2 1998
trans-1,2-Dichloroethylene MR 2 1998
Lead and Copper Rule MR 2 2005
Carbon tetrachloride MR 2 1998
Trichloroethylene MR 2 1998
1,1,2-Trichloroethane MR 2 1998
Tetrachloroethylene MR 2 1998
Benzene MR 2 1998
Toluene MR 2 1998
Styrene MR 2 1998
cis-1,2-Dichloroethylene MR 2 1998
1,1,1-Trichloroethane MR 2 1998
Ethylbenzene MR 2 1998
Toxaphene MR 2 1998
Endothall MR 2 1998
Di(2-ethylhexyl) adipate MR 2 1998
Picloram MR 2 1998
Dinoseb MR 2 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 Roosevelt Lake Estates.

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 AZ0404036 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 Roosevelt Lake Estates 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 11 SDWIS / AZ0404036 / 7000
2025 Total Haloacetic Acids (HAA5) MR 1 SDWIS / AZ0404036 / 2456
2025 TTHM MR 1 SDWIS / AZ0404036 / 2950
2015 Coliform (TCR) MR 8 SDWIS / AZ0404036 / 3100
2009 Chlorine MR 25 SDWIS / AZ0404036 / 0999
2009 Nitrate MR 12 SDWIS / AZ0404036 / 1040
2005 Lead and Copper Rule MR 2 SDWIS / AZ0404036 / 5000
2002 Xylenes, Total MR 4 SDWIS / AZ0404036 / 2955
2002 1,2,4-Trichlorobenzene MR 4 SDWIS / AZ0404036 / 2378
1998 2,4,5-TP MR 2 SDWIS / AZ0404036 / 2110
1998 HEXACHLOROBENZENE MR 2 SDWIS / AZ0404036 / 2274
1998 Pentachlorophenol MR 2 SDWIS / AZ0404036 / 2326
1998 ETHYLENE DIBROMIDE MR 2 SDWIS / AZ0404036 / 2946
1998 p-Dichlorobenzene MR 2 SDWIS / AZ0404036 / 2969
1998 1,1-Dichloroethylene MR 2 SDWIS / AZ0404036 / 2977

How Tonto Basin Water Roosevelt Lake Estates Compares

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

Metric Tonto Basin Water Roosevelt Lake Estates Arizona avg Federal benchmark
Total violations 181 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 508 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 Roosevelt Lake Estates water safe to drink? ▼
Tonto Basin Water Roosevelt Lake Estates (PWS ID: AZ0404036) has 181 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 508 people using Groundwater sources.
How many people does Tonto Basin Water Roosevelt Lake Estates serve? ▼
Tonto Basin Water Roosevelt Lake Estates serves 508 people in Payson, Arizona. It is a Private-owned system using Groundwater water sources with 218 service connections.
What type of violations does Tonto Basin Water Roosevelt Lake Estates have? ▼
Tonto Basin Water Roosevelt Lake Estates has 181 total violations: 0 health-based violations (MCL exceedances or treatment failures), 163 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 Roosevelt Lake Estates water? ▼
No PFAS testing data is available for Tonto Basin Water Roosevelt Lake Estates under the EPA's UCMR5 monitoring program.
What water source does Tonto Basin Water Roosevelt Lake Estates use? ▼
Tonto Basin Water Roosevelt Lake Estates 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.