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Transient Non-Community Water System · PWS AZ0401040

Pine Ridge Estates

Alpine, Arizona 85920 - drinking water served from groundwater sources to 40 people, tracked in EPA SDWIS and UCMR5.

40
People served
180
EPA violations
7
Health-based
Untested
UCMR5 result

The verdict

EPA records 180 drinking-water violations at Pine Ridge Estates, 4% of them health-based - above the Arizona per-system average.

180
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
40
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Pine Ridge Estates

Pine Ridge Estates is a private-owned transient non-community water system that delivers drinking water to 40 residents in Alpine, Arizona (Apache County) through 18 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 180 total violations for this system , of which 7 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 148 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 Revised Total Coliform Rule, recorded in 66 violations (MON). 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%).

Pine Ridge Estates's 180 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
40
Total Violations
180
Health-Based Violations
7
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
18
County
Apache
School/Daycare
No
MCL Violations
7
Monitoring Violations
148
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 66 2023
Coliform (TCR) MR 61 2015
Public Notice Other 17 2024
Nitrate MR 10 2020
Revised Total Coliform Rule RPT 8 2021
Revised Total Coliform Rule MCL 5 2022
Coliform (TCR) MCL 2 2002
Gross Alpha, Excl. Radon and U MR 2 1986
E. COLI MR 2 2015
Fluoride MR 1 1984
Mercury MR 1 1984
Barium MR 1 1984
Arsenic MR 1 1984
Cadmium MR 1 1984
Chromium MR 1 1984
Selenium MR 1 1984

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 Pine Ridge 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 AZ0401040 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 Pine Ridge 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
2024 Public Notice Other 17 SDWIS / AZ0401040 / 7500
2023 Revised Total Coliform Rule MON 66 SDWIS / AZ0401040 / 8000
2022 Revised Total Coliform Rule MCL 5 SDWIS / AZ0401040 / 8000
2021 Revised Total Coliform Rule RPT 8 SDWIS / AZ0401040 / 8000
2020 Nitrate MR 10 SDWIS / AZ0401040 / 1040
2015 Coliform (TCR) MR 61 SDWIS / AZ0401040 / 3100
2015 E. COLI MR 2 SDWIS / AZ0401040 / 3014
2002 Coliform (TCR) MCL 2 SDWIS / AZ0401040 / 3100
1986 Gross Alpha, Excl. Radon and U MR 2 SDWIS / AZ0401040 / 4000
1984 Fluoride MR 1 SDWIS / AZ0401040 / 1025
1984 Mercury MR 1 SDWIS / AZ0401040 / 1035
1984 Barium MR 1 SDWIS / AZ0401040 / 1010
1984 Arsenic MR 1 SDWIS / AZ0401040 / 1005
1984 Cadmium MR 1 SDWIS / AZ0401040 / 1015
1984 Chromium MR 1 SDWIS / AZ0401040 / 1020

How Pine Ridge Estates Compares

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

Metric Pine Ridge Estates Arizona avg Federal benchmark
Total violations 180 153.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 7 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 40 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 Pine Ridge Estates water safe to drink? ▼
Pine Ridge Estates (PWS ID: AZ0401040) has 180 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 40 people using Groundwater sources.
How many people does Pine Ridge Estates serve? ▼
Pine Ridge Estates serves 40 people in Alpine, Arizona. It is a Private-owned system using Groundwater water sources with 18 service connections.
What type of violations does Pine Ridge Estates have? ▼
Pine Ridge Estates has 180 total violations: 7 health-based violations (MCL exceedances or treatment failures), 148 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Pine Ridge Estates water? ▼
No PFAS testing data is available for Pine Ridge Estates under the EPA's UCMR5 monitoring program.
What water source does Pine Ridge Estates use? ▼
Pine Ridge Estates uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.