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Community Water System · PWS UTAH27018

Toquerville Town Water System

Toquerville, Utah 84774 - drinking water served from groundwater sources to 1,931 people, tracked in EPA SDWIS and UCMR5.

1,931
People served
58
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 58 drinking-water violations at Toquerville Town Water System, 5% of them health-based - below the Utah per-system average.

58
Total EPA violations on record
5%
Health-based (MCL / treatment failure)
1,931
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Toquerville Town Water System

Toquerville Town Water System is a local-owned community water system that delivers drinking water to 1,931 residents in Toquerville, Utah (Washington County) through 711 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 58 total violations for this system , of which 3 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 37 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Revised Total Coliform Rule, recorded in 11 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 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%).

Toquerville Town Water System's 58 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
1,931
Total Violations
58
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
711
County
Washington
School/Daycare
No
MCL Violations
3
Monitoring Violations
37
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 11 2020
Coliform (TCR) MR 4 1991
Lead and Copper Rule MR 4 2012
Nitrate MR 4 2015
TTHM MR 3 2019
Revised Total Coliform Rule Other 3 2017
Coliform (TCR) MCL 3 2000
Total Haloacetic Acids (HAA5) MR 3 2019
Coliform (TCR) Other 2 1991
Barium MR 1 1987
Cadmium MR 1 1987
Chromium MR 1 1987
Fluoride MR 1 1987
Mercury MR 1 1987
Selenium MR 1 1987
Arsenic MR 1 1987
Gross Alpha, Excl. Radon and U MR 1 1982

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 Toquerville Town 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 UTAH27018 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
2020 Revised Total Coliform Rule MON 11 SDWIS / UTAH27018 / 8000
2019 TTHM MR 3 SDWIS / UTAH27018 / 2950
2019 Total Haloacetic Acids (HAA5) MR 3 SDWIS / UTAH27018 / 2456
2017 Revised Total Coliform Rule Other 3 SDWIS / UTAH27018 / 8000
2015 Nitrate MR 4 SDWIS / UTAH27018 / 1040
2012 Lead and Copper Rule MR 4 SDWIS / UTAH27018 / 5000
2000 Coliform (TCR) MCL 3 SDWIS / UTAH27018 / 3100
1991 Coliform (TCR) MR 4 SDWIS / UTAH27018 / 3100
1991 Coliform (TCR) Other 2 SDWIS / UTAH27018 / 3100
1987 Barium MR 1 SDWIS / UTAH27018 / 1010
1987 Cadmium MR 1 SDWIS / UTAH27018 / 1015
1987 Chromium MR 1 SDWIS / UTAH27018 / 1020
1987 Fluoride MR 1 SDWIS / UTAH27018 / 1025
1987 Mercury MR 1 SDWIS / UTAH27018 / 1035
1987 Selenium MR 1 SDWIS / UTAH27018 / 1045

How Toquerville Town Water System Compares

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

Metric Toquerville Town Water System Utah avg Federal benchmark
Total violations 58 159 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 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 1,931 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 Toquerville Town Water System water safe to drink? ▼
Toquerville Town Water System (PWS ID: UTAH27018) has 58 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,931 people using Groundwater sources.
How many people does Toquerville Town Water System serve? ▼
Toquerville Town Water System serves 1,931 people in Toquerville, Utah. It is a Local-owned system using Groundwater water sources with 711 service connections.
What type of violations does Toquerville Town Water System have? ▼
Toquerville Town Water System has 58 total violations: 3 health-based violations (MCL exceedances or treatment failures), 37 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Toquerville Town Water System water? ▼
No PFAS testing data is available for Toquerville Town Water System under the EPA's UCMR5 monitoring program.
What water source does Toquerville Town Water System use? ▼
Toquerville Town 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.