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Community Water System · PWS UTAH23006

Ophir Canyon Water Association

Erda, Utah 84074 - drinking water served from groundwater sources to 108 people, tracked in EPA SDWIS and UCMR5.

108
People served
89
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 89 drinking-water violations at Ophir Canyon Water Association, 7% of them health-based - below the Utah per-system average.

89
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
108
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Ophir Canyon Water Association

Ophir Canyon Water Association is a private-owned community water system that delivers drinking water to 108 residents in Erda, Utah (Tooele County) through 40 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 89 total violations for this system , of which 6 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 68 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 23 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%).

Ophir Canyon Water Association's 89 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
108
Total Violations
89
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
40
County
Tooele
School/Daycare
No
MCL Violations
6
Monitoring Violations
68
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 23 2015
E. COLI MR 15 2017
Revised Total Coliform Rule MON 8 2023
Coliform (TCR) MCL 6 2007
Nitrate MR 4 2005
Lead and Copper Rule MR 4 2011
Barium MR 2 1988
Fluoride MR 2 1988
Mercury MR 2 1988
Selenium MR 2 1988
Chromium MR 2 1988
Consumer Confidence Rule Other 2 2015
Cadmium MR 2 1988
Arsenic MR 2 1988

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 Ophir Canyon Water Association.

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 UTAH23006 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 Revised Total Coliform Rule MON 8 SDWIS / UTAH23006 / 8000
2017 E. COLI MR 15 SDWIS / UTAH23006 / 3014
2015 Coliform (TCR) MR 23 SDWIS / UTAH23006 / 3100
2015 Consumer Confidence Rule Other 2 SDWIS / UTAH23006 / 7000
2011 Lead and Copper Rule MR 4 SDWIS / UTAH23006 / 5000
2007 Coliform (TCR) MCL 6 SDWIS / UTAH23006 / 3100
2005 Nitrate MR 4 SDWIS / UTAH23006 / 1040
1988 Barium MR 2 SDWIS / UTAH23006 / 1010
1988 Fluoride MR 2 SDWIS / UTAH23006 / 1025
1988 Mercury MR 2 SDWIS / UTAH23006 / 1035
1988 Selenium MR 2 SDWIS / UTAH23006 / 1045
1988 Chromium MR 2 SDWIS / UTAH23006 / 1020
1988 Cadmium MR 2 SDWIS / UTAH23006 / 1015
1988 Arsenic MR 2 SDWIS / UTAH23006 / 1005

How Ophir Canyon Water Association Compares

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

Metric Ophir Canyon Water Association Utah avg Federal benchmark
Total violations 89 159 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 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 108 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 Ophir Canyon Water Association water safe to drink? ▼
Ophir Canyon Water Association (PWS ID: UTAH23006) has 89 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 108 people using Groundwater sources.
How many people does Ophir Canyon Water Association serve? ▼
Ophir Canyon Water Association serves 108 people in Erda, Utah. It is a Private-owned system using Groundwater water sources with 40 service connections.
What type of violations does Ophir Canyon Water Association have? ▼
Ophir Canyon Water Association has 89 total violations: 6 health-based violations (MCL exceedances or treatment failures), 68 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Ophir Canyon Water Association water? ▼
No PFAS testing data is available for Ophir Canyon Water Association under the EPA's UCMR5 monitoring program.
What water source does Ophir Canyon Water Association use? ▼
Ophir Canyon Water Association 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.