Community Water System · PWS AZ0404083

Arroyo Water Company

Payson, Arizona 85541 - drinking water served from groundwater sources to 150 people, tracked in EPA SDWIS and UCMR5.

Compiled by PlainWater Editorial, Drinking Water Quality Editorial Team · May 15, 2026

150
People served: 127
EPA violations: 12
Health-based: Untested
UCMR5 result

The verdict

EPA records 127 drinking-water violations at Arroyo Water Company, 9% of them health-based - below the Arizona per-system average.

127
Total EPA violations on record: 9%
Health-based (MCL / treatment failure): 150
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Arroyo Water Company

Arroyo Water Company is a private-owned community water system that delivers drinking water to 150 residents in Payson, Arizona (Gila County) through 190 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 127 total violations for this system , of which 12 (9%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 78 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 57 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%).

Arroyo Water Company's 127 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

150

Total Violations

127

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Private
Connections: 190
County: Gila
School/Daycare: No
MCL Violations: 12
Monitoring Violations: 78
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Coliform (TCR)	MR	57	2015
Consumer Confidence Rule	Other	28	2014
Coliform (TCR)	MCL	12	2011
Nitrate	MR	5	2005
Di(2-ethylhexyl) phthalate	MR	2	2017
Revised Total Coliform Rule	RPT	2	2019
Xylenes, Total	MR	1	2001
DICHLOROMETHANE	MR	1	2001
o-Dichlorobenzene	MR	1	2001
trans-1,2-Dichloroethylene	MR	1	2001
1,2-Dichloropropane	MR	1	2001
1,1,2-Trichloroethane	MR	1	2001
Tetrachloroethylene	MR	1	2001
Styrene	MR	1	2001
CHLOROBENZENE	MR	1	2001
cis-1,2-Dichloroethylene	MR	1	2001
Lead and Copper Rule	MR	1	2005
Toluene	MR	1	2001
1,2,4-Trichlorobenzene	MR	1	2001
Ethylbenzene	MR	1	2001

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 Arroyo 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 AZ0404083 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 Arroyo 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
2019	Revised Total Coliform Rule	RPT	2	SDWIS / AZ0404083 / 8000
2017	Di(2-ethylhexyl) phthalate	MR	2	SDWIS / AZ0404083 / 2039
2015	Coliform (TCR)	MR	57	SDWIS / AZ0404083 / 3100
2014	Consumer Confidence Rule	Other	28	SDWIS / AZ0404083 / 7000
2011	Coliform (TCR)	MCL	12	SDWIS / AZ0404083 / 3100
2005	Nitrate	MR	5	SDWIS / AZ0404083 / 1040
2005	Lead and Copper Rule	MR	1	SDWIS / AZ0404083 / 5000
2001	Xylenes, Total	MR	1	SDWIS / AZ0404083 / 2955
2001	DICHLOROMETHANE	MR	1	SDWIS / AZ0404083 / 2964
2001	o-Dichlorobenzene	MR	1	SDWIS / AZ0404083 / 2968
2001	trans-1,2-Dichloroethylene	MR	1	SDWIS / AZ0404083 / 2979
2001	1,2-Dichloropropane	MR	1	SDWIS / AZ0404083 / 2983
2001	1,1,2-Trichloroethane	MR	1	SDWIS / AZ0404083 / 2985
2001	Tetrachloroethylene	MR	1	SDWIS / AZ0404083 / 2987
2001	Styrene	MR	1	SDWIS / AZ0404083 / 2996

How Arroyo Water Company Compares

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

Metric	Arroyo Water Company	Arizona avg	Federal benchmark
Total violations	127	153.3	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	12	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	150	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 Arroyo Water Company water safe to drink? ▼

Arroyo Water Company (PWS ID: AZ0404083) has 127 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 150 people using Groundwater sources.

How many people does Arroyo Water Company serve? ▼

Arroyo Water Company serves 150 people in Payson, Arizona. It is a Private-owned system using Groundwater water sources with 190 service connections.

What type of violations does Arroyo Water Company have? ▼

Arroyo Water Company has 127 total violations: 12 health-based violations (MCL exceedances or treatment failures), 78 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Arroyo Water Company water? ▼

No PFAS testing data is available for Arroyo Water Company under the EPA's UCMR5 monitoring program.

What water source does Arroyo Water Company use? ▼

Arroyo 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.