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Community Water System · PWS AZ0411160

Gw Santa Cruz Water Co - Red Rock

Maricopa, Arizona 85138 - drinking water served from groundwater sources to 3,813 people, tracked in EPA SDWIS and UCMR5.

3,813
People served
32
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 32 drinking-water violations at Gw Santa Cruz Water Co - Red Rock - below the Arizona per-system average.

32
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
3,813
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Gw Santa Cruz Water Co - Red Rock

Gw Santa Cruz Water Co - Red Rock is a public/private-owned community water system that delivers drinking water to 3,813 residents in Maricopa, Arizona (Pinal County) through 1,271 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 32 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 26 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 13 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%).

Gw Santa Cruz Water Co - Red Rock's 32 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
3,813
Total Violations
32
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Public/Private
Connections
1,271
County
Pinal
School/Daycare
No
MCL Violations
0
Monitoring Violations
26
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 13 2015
Chlorine MR 11 2021
Revised Total Coliform Rule RPT 2 2023
Consumer Confidence Rule Other 2 2010
TTHM MR 1 2011
Total Haloacetic Acids (HAA5) MR 1 2011

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 Gw Santa Cruz Water Co - Red Rock.

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 AZ0411160 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 Gw Santa Cruz Water Co - Red Rock 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
2023 Revised Total Coliform Rule RPT 2 SDWIS / AZ0411160 / 8000
2021 Chlorine MR 11 SDWIS / AZ0411160 / 0999
2015 Coliform (TCR) MR 13 SDWIS / AZ0411160 / 3100
2011 TTHM MR 1 SDWIS / AZ0411160 / 2950
2011 Total Haloacetic Acids (HAA5) MR 1 SDWIS / AZ0411160 / 2456
2010 Consumer Confidence Rule Other 2 SDWIS / AZ0411160 / 7000

How Gw Santa Cruz Water Co - Red Rock Compares

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

Metric Gw Santa Cruz Water Co - Red Rock Arizona avg Federal benchmark
Total violations 32 153.3 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 3,813 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 Gw Santa Cruz Water Co - Red Rock water safe to drink? ▼
Gw Santa Cruz Water Co - Red Rock (PWS ID: AZ0411160) has 32 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,813 people using Groundwater sources.
How many people does Gw Santa Cruz Water Co - Red Rock serve? ▼
Gw Santa Cruz Water Co - Red Rock serves 3,813 people in Maricopa, Arizona. It is a Public/Private-owned system using Groundwater water sources with 1,271 service connections.
What type of violations does Gw Santa Cruz Water Co - Red Rock have? ▼
Gw Santa Cruz Water Co - Red Rock has 32 total violations: 0 health-based violations (MCL exceedances or treatment failures), 26 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Gw Santa Cruz Water Co - Red Rock water? ▼
No PFAS testing data is available for Gw Santa Cruz Water Co - Red Rock under the EPA's UCMR5 monitoring program.
What water source does Gw Santa Cruz Water Co - Red Rock use? ▼
Gw Santa Cruz Water Co - Red Rock 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.