Community Water System · PWS AZ0403312

Hydro Resources-Tusayan

Grand Canyon, Arizona 86023 - drinking water served from groundwater sources to 1,710 people, tracked in EPA SDWIS and UCMR5.

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

1,710
People served: 306
EPA violations: 1
Health-based: Untested
UCMR5 result

The verdict

EPA records 306 drinking-water violations at Hydro Resources-Tusayan - above the Arizona per-system average.

306
Total EPA violations on record: 0%
Health-based (MCL / treatment failure): 1,710
People served by this system: N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Hydro Resources-Tusayan

Hydro Resources-Tusayan is a private-owned community water system that delivers drinking water to 1,710 residents in Grand Canyon, Arizona (Coconino County) through 117 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 306 total violations for this system , of which 1 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 242 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Chlorine, recorded in 78 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%).

Hydro Resources-Tusayan's 306 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

1,710

Total Violations

306

Health-Based Violations

Water Source

Groundwater

System Details

System Type: Community
Owner Type: Private
Connections: 117
County: Coconino
School/Daycare: No
MCL Violations: 1
Monitoring Violations: 242
Treatment Tech Violations: 0

Violation History

Contaminant violations recorded by EPA.

Contaminant	Category	Count	Latest
Chlorine	MR	78	2024
Consumer Confidence Rule	Other	25	2023
Coliform (TCR)	MR	23	2015
TTHM	MR	11	2012
Total Haloacetic Acids (HAA5)	MR	10	2012
Lead and Copper Rule	MR	7	2023
Nitrate	MR	4	2004
Xylenes, Total	MR	3	2002
Atrazine	MR	2	1998
LASSO	MR	2	1998
Heptachlor	MR	2	1998
Heptachlor epoxide	MR	2	1998
2,4-D	MR	2	1998
Pentachlorophenol	MR	2	1998
1,2-DIBROMO-3-CHLOROPROPANE	MR	2	1998
ETHYLENE DIBROMIDE	MR	2	1998
Chlordane	MR	2	1998
Revised Total Coliform Rule	MON	2	2019
1,2,4-Trichlorobenzene	MR	2	1998
cis-1,2-Dichloroethylene	MR	2	1998
DICHLOROMETHANE	MR	2	1998
o-Dichlorobenzene	MR	2	1998
p-Dichlorobenzene	MR	2	1998
1,1-Dichloroethylene	MR	2	1998
1,1,2-Trichloroethane	MR	2	1998
Tetrachloroethylene	MR	2	1998
CHLOROBENZENE	MR	2	1998
Benzene	MR	2	1998
Toluene	MR	2	1998
Ethylbenzene	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 Hydro Resources-Tusayan.

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 AZ0403312 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 Hydro Resources-Tusayan 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
2024	Chlorine	MR	78	SDWIS / AZ0403312 / 0999
2023	Consumer Confidence Rule	Other	25	SDWIS / AZ0403312 / 7000
2023	Lead and Copper Rule	MR	7	SDWIS / AZ0403312 / 5000
2019	Revised Total Coliform Rule	MON	2	SDWIS / AZ0403312 / 8000
2015	Coliform (TCR)	MR	23	SDWIS / AZ0403312 / 3100
2012	TTHM	MR	11	SDWIS / AZ0403312 / 2950
2012	Total Haloacetic Acids (HAA5)	MR	10	SDWIS / AZ0403312 / 2456
2012	E. COLI	MR	1	SDWIS / AZ0403312 / 3014
2008	Coliform (TCR)	MCL	1	SDWIS / AZ0403312 / 3100
2004	Nitrate	MR	4	SDWIS / AZ0403312 / 1040
2002	Xylenes, Total	MR	3	SDWIS / AZ0403312 / 2955
1998	Atrazine	MR	2	SDWIS / AZ0403312 / 2050
1998	LASSO	MR	2	SDWIS / AZ0403312 / 2051
1998	Heptachlor	MR	2	SDWIS / AZ0403312 / 2065
1998	Heptachlor epoxide	MR	2	SDWIS / AZ0403312 / 2067

How Hydro Resources-Tusayan Compares

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

Metric	Hydro Resources-Tusayan	Arizona avg	Federal benchmark
Total violations	306	153.3	SDWA compliance, any non-zero count is a recorded breach
Health-based violations	1	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	1,710	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 Hydro Resources-Tusayan water safe to drink? ▼

Hydro Resources-Tusayan (PWS ID: AZ0403312) has 306 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,710 people using Groundwater sources.

How many people does Hydro Resources-Tusayan serve? ▼

Hydro Resources-Tusayan serves 1,710 people in Grand Canyon, Arizona. It is a Private-owned system using Groundwater water sources with 117 service connections.

What type of violations does Hydro Resources-Tusayan have? ▼

Hydro Resources-Tusayan has 306 total violations: 1 health-based violations (MCL exceedances or treatment failures), 242 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.

Has PFAS been detected in Hydro Resources-Tusayan water? ▼

No PFAS testing data is available for Hydro Resources-Tusayan under the EPA's UCMR5 monitoring program.

What water source does Hydro Resources-Tusayan use? ▼

Hydro Resources-Tusayan 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.