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Community Water System · PWS UTAH24038

Central Utah Wcd - Ashley Valley

Mapleton, Utah 84664 - drinking water served from surface water sources to 0 people, tracked in EPA SDWIS and UCMR5.

0
People served
41
EPA violations
4
Health-based
Untested
UCMR5 result

The verdict

EPA records 41 drinking-water violations at Central Utah Wcd - Ashley Valley, 10% of them health-based - below the Utah per-system average.

41
Total EPA violations on record
10%
Health-based (MCL / treatment failure)
0
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Central Utah Wcd - Ashley Valley

Central Utah Wcd - Ashley Valley is a local-owned community water system that delivers drinking water to 0 residents in Mapleton, Utah (Uintah County) through 1 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 41 total violations for this system , of which 4 (10%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 36 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 Nitrate, recorded in 5 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 Utah, EPA tracks 1,068 public water systems serving 3,870,776 people, with 169,784 cumulative violations and 10,671 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 159 violations. Statewide, 91 of 129 UCMR5-tested systems have reported PFAS detections (70.5%).

Central Utah Wcd - Ashley Valley's 41 violations sit below the Utah 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
0
Total Violations
41
Health-Based Violations
4
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1
County
Uintah
School/Daycare
No
MCL Violations
0
Monitoring Violations
36
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 5 2022
Long Term 2 Enhanced Surface Water Treatment Rule TT 4 2023
Endrin MR 2 1988
2,4-D MR 2 1988
2,4,5-TP MR 2 1988
Barium MR 2 1998
BHC-GAMMA MR 2 1988
Cadmium MR 2 1998
Arsenic MR 2 1998
Fluoride MR 2 1998
Selenium MR 2 1998
Mercury MR 2 1998
Chromium MR 2 1998
Methoxychlor MR 2 1988
Toxaphene MR 2 1988
CYANIDE MR 1 1998
Nickel MR 1 1998
Antimony, Total MR 1 1998
Beryllium, Total MR 1 1998
Thallium, Total MR 1 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 Central Utah Wcd - Ashley Valley.

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 UTAH24038 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Utah Drinking Water Authority

Utah's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find UT regulator via EPA SDWIS

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 Long Term 2 Enhanced Surface Water Treatment Rule TT 4 SDWIS / UTAH24038 / 0800
2022 Nitrate MR 5 SDWIS / UTAH24038 / 1040
1998 Barium MR 2 SDWIS / UTAH24038 / 1010
1998 Cadmium MR 2 SDWIS / UTAH24038 / 1015
1998 Arsenic MR 2 SDWIS / UTAH24038 / 1005
1998 Fluoride MR 2 SDWIS / UTAH24038 / 1025
1998 Selenium MR 2 SDWIS / UTAH24038 / 1045
1998 Mercury MR 2 SDWIS / UTAH24038 / 1035
1998 Chromium MR 2 SDWIS / UTAH24038 / 1020
1998 CYANIDE MR 1 SDWIS / UTAH24038 / 1024
1998 Nickel MR 1 SDWIS / UTAH24038 / 1036
1998 Antimony, Total MR 1 SDWIS / UTAH24038 / 1074
1998 Beryllium, Total MR 1 SDWIS / UTAH24038 / 1075
1998 Thallium, Total MR 1 SDWIS / UTAH24038 / 1085
1988 Endrin MR 2 SDWIS / UTAH24038 / 2005

How Central Utah Wcd - Ashley Valley Compares

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

Metric Central Utah Wcd - Ashley Valley Utah avg Federal benchmark
Total violations 41 159 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 10 Indicates a contaminant exceeded a federal MCL
PFAS detection None 70.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 0 3,624 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,068 regulated public water systems in Utah.

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 Central Utah Wcd - Ashley Valley water safe to drink? ▼
Central Utah Wcd - Ashley Valley (PWS ID: UTAH24038) has 41 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 0 people using Surface Water sources.
How many people does Central Utah Wcd - Ashley Valley serve? ▼
Central Utah Wcd - Ashley Valley serves 0 people in Mapleton, Utah. It is a Local-owned system using Surface Water water sources with 1 service connections.
What type of violations does Central Utah Wcd - Ashley Valley have? ▼
Central Utah Wcd - Ashley Valley has 41 total violations: 4 health-based violations (MCL exceedances or treatment failures), 36 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Central Utah Wcd - Ashley Valley water? ▼
No PFAS testing data is available for Central Utah Wcd - Ashley Valley under the EPA's UCMR5 monitoring program.
What water source does Central Utah Wcd - Ashley Valley use? ▼
Central Utah Wcd - Ashley Valley uses Surface Water 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.