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Community Water System · PWS UTAH23079

South Rim Water System

South Rim, Utah 84071 - drinking water served from groundwater sources to 834 people, tracked in EPA SDWIS and UCMR5.

834
People served
49
EPA violations
16
Health-based
Untested
UCMR5 result

The verdict

EPA records 49 drinking-water violations at South Rim Water System, 33% of them health-based - below the Utah per-system average.

49
Total EPA violations on record
33%
Health-based (MCL / treatment failure)
834
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: South Rim Water System

South Rim Water System is a private-owned community water system that delivers drinking water to 834 residents in South Rim, Utah (Tooele County) through 351 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 49 total violations for this system , of which 16 (33%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 33 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 16 violations (MCL, health-based). 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%).

South Rim Water System's 49 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
834
Total Violations
49
Health-Based Violations
16
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
351
County
Tooele
School/Daycare
No
MCL Violations
16
Monitoring Violations
33
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 16 2015
Lead and Copper Rule MR 9 2011
Gross Alpha, Excl. Radon and U MR 6 2017
Radium-228 MR 6 2017
Radium-226 MR 6 2017
Nitrate MR 3 2015
E. COLI MR 3 2017

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 South Rim Water System.

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 UTAH23079 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
2017 Gross Alpha, Excl. Radon and U MR 6 SDWIS / UTAH23079 / 4000
2017 Radium-228 MR 6 SDWIS / UTAH23079 / 4030
2017 Radium-226 MR 6 SDWIS / UTAH23079 / 4020
2017 E. COLI MR 3 SDWIS / UTAH23079 / 3014
2015 Coliform (TCR) MCL 16 SDWIS / UTAH23079 / 3100
2015 Nitrate MR 3 SDWIS / UTAH23079 / 1040
2011 Lead and Copper Rule MR 9 SDWIS / UTAH23079 / 5000

How South Rim Water System Compares

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

Metric South Rim Water System Utah avg Federal benchmark
Total violations 49 159 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 16 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 834 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 South Rim Water System water safe to drink? ▼
South Rim Water System (PWS ID: UTAH23079) has 49 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 834 people using Groundwater sources.
How many people does South Rim Water System serve? ▼
South Rim Water System serves 834 people in South Rim, Utah. It is a Private-owned system using Groundwater water sources with 351 service connections.
What type of violations does South Rim Water System have? ▼
South Rim Water System has 49 total violations: 16 health-based violations (MCL exceedances or treatment failures), 33 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in South Rim Water System water? ▼
No PFAS testing data is available for South Rim Water System under the EPA's UCMR5 monitoring program.
What water source does South Rim Water System use? ▼
South Rim Water System 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.