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Community Water System · PWS AZ0404028

Geronimo Estates

Payson, Arizona 85541 - drinking water served from groundwater sources to 212 people, tracked in EPA SDWIS and UCMR5.

212
People served
138
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 138 drinking-water violations at Geronimo Estates, 4% of them health-based - below the Arizona per-system average.

138
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
212
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Geronimo Estates

Geronimo Estates is a private-owned community water system that delivers drinking water to 212 residents in Payson, Arizona (Gila County) through 91 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 138 total violations for this system , of which 6 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 107 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Chlorine, recorded in 19 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%).

Geronimo Estates's 138 violations sit below 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
212
Total Violations
138
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
91
County
Gila
School/Daycare
No
MCL Violations
6
Monitoring Violations
107
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 19 2015
Coliform (TCR) MR 12 2015
Consumer Confidence Rule Other 10 2016
Coliform (TCR) MCL 5 2008
Nitrate MR 5 2010
o-Dichlorobenzene MR 3 2002
1,1-Dichloroethylene MR 3 2002
trans-1,2-Dichloroethylene MR 3 2002
1,2-Dichloroethane MR 3 2002
Trichloroethylene MR 3 2002
Tetrachloroethylene MR 3 2002
CHLOROBENZENE MR 3 2002
Benzene MR 3 2002
Styrene MR 3 2002
1,2,4-Trichlorobenzene MR 3 2002
cis-1,2-Dichloroethylene MR 3 2002
DICHLOROMETHANE MR 3 2002
1,1,1-Trichloroethane MR 3 2002
1,2-Dichloropropane MR 3 2002
1,1,2-Trichloroethane MR 3 2002
Ethylbenzene MR 3 2002
Lead and Copper Rule MR 3 2006
Toluene MR 3 2002
Carbon tetrachloride MR 3 2002
Xylenes, Total MR 2 1998
E. COLI MR 2 2015
p-Dichlorobenzene MR 2 1998
Endothall MR 1 1998
Glyphosate MR 1 1998
OXAMYL 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 Geronimo 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 AZ0404028 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 Geronimo 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
2016 Consumer Confidence Rule Other 10 SDWIS / AZ0404028 / 7000
2015 Chlorine MR 19 SDWIS / AZ0404028 / 0999
2015 Coliform (TCR) MR 12 SDWIS / AZ0404028 / 3100
2015 E. COLI MR 2 SDWIS / AZ0404028 / 3014
2010 Nitrate MR 5 SDWIS / AZ0404028 / 1040
2008 Coliform (TCR) MCL 5 SDWIS / AZ0404028 / 3100
2006 Lead and Copper Rule MR 3 SDWIS / AZ0404028 / 5000
2005 Total Haloacetic Acids (HAA5) MCL 1 SDWIS / AZ0404028 / 2456
2002 o-Dichlorobenzene MR 3 SDWIS / AZ0404028 / 2968
2002 1,1-Dichloroethylene MR 3 SDWIS / AZ0404028 / 2977
2002 trans-1,2-Dichloroethylene MR 3 SDWIS / AZ0404028 / 2979
2002 1,2-Dichloroethane MR 3 SDWIS / AZ0404028 / 2980
2002 Trichloroethylene MR 3 SDWIS / AZ0404028 / 2984
2002 Tetrachloroethylene MR 3 SDWIS / AZ0404028 / 2987
2002 CHLOROBENZENE MR 3 SDWIS / AZ0404028 / 2989

How Geronimo Estates Compares

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

Metric Geronimo Estates Arizona avg Federal benchmark
Total violations 138 153.3 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 212 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 Geronimo Estates water safe to drink? ▼
Geronimo Estates (PWS ID: AZ0404028) has 138 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 212 people using Groundwater sources.
How many people does Geronimo Estates serve? ▼
Geronimo Estates serves 212 people in Payson, Arizona. It is a Private-owned system using Groundwater water sources with 91 service connections.
What type of violations does Geronimo Estates have? ▼
Geronimo Estates has 138 total violations: 6 health-based violations (MCL exceedances or treatment failures), 107 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Geronimo Estates water? ▼
No PFAS testing data is available for Geronimo Estates under the EPA's UCMR5 monitoring program.
What water source does Geronimo Estates use? ▼
Geronimo 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.