PlainWater
States → Arizona

GROOM CREEK WATER USERS

PWS ID: AZ0413040 · PRESCOTT, Arizona 86302

GROOM CREEK WATER USERS serves 458 people in PRESCOTT, Arizona using Groundwater water sources. It has 38 recorded EPA violations, including 1 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: GROOM CREEK WATER USERS

GROOM CREEK WATER USERS is a private-owned community water system that delivers drinking water to 458 residents in PRESCOTT, Arizona (Yavapai County) through 230 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 38 total violations for this system , of which 1 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 30 monitoring and reporting violations are on file. The most recent violation on record dates to 2011.

The most frequently cited contaminant at this system is Nitrate, recorded in 7 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. GROOM CREEK WATER USERS's 38 violations sit below the Arizona average. Statewide, 145 of 152 UCMR5-tested systems have reported PFAS detections (95.4%). 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
458
Total Violations
38
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
230
County
Yavapai
School/Daycare
No
MCL Violations
1
Monitoring Violations
30
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 7 2011
Consumer Confidence Rule Other 5 2008
Endothall MR 4 2001
Chlorine MR 3 2004
CYANIDE MR 2 1998
TTHM MR 2 2007
Total Haloacetic Acids (HAA5) MR 2 2007
Gross Alpha, Excl. Radon and U MR 2 1987
Fluoride MR 1 1979
Barium MR 1 1979
Chromium MR 1 1979
Arsenic MR 1 1979
Cadmium MR 1 1979
Selenium MR 1 1979
Coliform (TCR) MR 1 2001
Coliform (TCR) MCL 1 2001
Mercury MR 1 1979

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 GROOM CREEK WATER USERS.

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 AZ0413040 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 GROOM CREEK WATER USERS 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
2011 Nitrate MR 7 SDWIS / AZ0413040 / 1040
2008 Consumer Confidence Rule Other 5 SDWIS / AZ0413040 / 7000
2007 TTHM MR 2 SDWIS / AZ0413040 / 2950
2007 Total Haloacetic Acids (HAA5) MR 2 SDWIS / AZ0413040 / 2456
2004 Chlorine MR 3 SDWIS / AZ0413040 / 0999
2001 Endothall MR 4 SDWIS / AZ0413040 / 2033
2001 Coliform (TCR) MR 1 SDWIS / AZ0413040 / 3100
2001 Coliform (TCR) MCL 1 SDWIS / AZ0413040 / 3100
1998 CYANIDE MR 2 SDWIS / AZ0413040 / 1024
1987 Gross Alpha, Excl. Radon and U MR 2 SDWIS / AZ0413040 / 4000
1979 Fluoride MR 1 SDWIS / AZ0413040 / 1025
1979 Barium MR 1 SDWIS / AZ0413040 / 1010
1979 Chromium MR 1 SDWIS / AZ0413040 / 1020
1979 Arsenic MR 1 SDWIS / AZ0413040 / 1005
1979 Cadmium MR 1 SDWIS / AZ0413040 / 1015

How GROOM CREEK WATER USERS Compares

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

Metric GROOM CREEK WATER USERS Arizona avg Federal benchmark
Total violations 38 153.3 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 458 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is GROOM CREEK WATER USERS water safe to drink? ▼
GROOM CREEK WATER USERS (PWS ID: AZ0413040) has 38 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 458 people using Groundwater sources.
How many people does GROOM CREEK WATER USERS serve? ▼
GROOM CREEK WATER USERS serves 458 people in PRESCOTT, Arizona. It is a Private-owned system using Groundwater water sources with 230 service connections.
What type of violations does GROOM CREEK WATER USERS have? ▼
GROOM CREEK WATER USERS has 38 total violations: 1 health-based violations (MCL exceedances or treatment failures), 30 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in GROOM CREEK WATER USERS water? ▼
No PFAS testing data is available for GROOM CREEK WATER USERS under the EPA's UCMR5 monitoring program.
What water source does GROOM CREEK WATER USERS use? ▼
GROOM CREEK WATER USERS 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.

Explore PlainWater

Water in Arizona

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Arizona

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
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.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial