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Community Water System · PWS UTAH03010

Logan City Water System

Wellsville, Utah 84339 - drinking water served from groundwater sources to 55,540 people, tracked in EPA SDWIS and UCMR5.

55,540
People served
194
EPA violations
0
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 194 drinking-water violations at Logan City Water System - above the Utah per-system average.

194
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
55,540
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Logan City Water System

Logan City Water System is a local-owned community water system that delivers drinking water to 55,540 residents in Wellsville, Utah (Cache County) through 12,256 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 194 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 164 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 Revised Total Coliform Rule, recorded in 6 violations (RPT). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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%).

Logan City Water System's 194 violations sit above 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
55,540
Total Violations
194
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
12,256
County
Cache
School/Daycare
No
MCL Violations
0
Monitoring Violations
164
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule RPT 6 2017
Benzene MR 5 2001
Carbon tetrachloride MR 5 2001
Trichloroethylene MR 5 2001
1,1-Dichloroethylene MR 5 2001
p-Dichlorobenzene MR 5 2001
1,1,1-Trichloroethane MR 5 2001
cis-1,2-Dichloroethylene MR 5 2001
1,2-Dichloropropane MR 5 2001
Ethylbenzene MR 5 2001
CHLOROBENZENE MR 5 2001
o-Dichlorobenzene MR 5 2001
Tetrachloroethylene MR 5 2001
Toluene MR 5 2001
trans-1,2-Dichloroethylene MR 5 2001
Xylenes, Total MR 5 2001
DICHLOROMETHANE MR 5 2001
1,2,4-Trichlorobenzene MR 5 2001
1,1,2-Trichloroethane MR 5 2001
Styrene MR 5 2001
Vinyl chloride MR 5 2001
1,2-Dichloroethane MR 5 2001
Coliform (TCR) MR 5 1994
Lead and Copper Rule MR 3 2011
Revised Total Coliform Rule MON 3 2017
Nitrate MR 2 2005
Fluoride MR 2 1993
Chromium MR 2 1993
Barium MR 2 1993
Selenium MR 2 1993

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 290 samples detected PFAS.

Contaminant Date Result MRL Status
PFMPA 9/13/2023 <4.00 ppt 4.00 ppt Not Detected
PFTA 9/13/2023 <8.00 ppt 8.00 ppt Not Detected
ADONA 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 9/13/2023 <5.00 ppt 5.00 ppt Not Detected
PFPeS 9/13/2023 <4.00 ppt 4.00 ppt Not Detected
PFBA 9/13/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 9/13/2023 <5.00 ppt 5.00 ppt Not Detected
8:2 FTS 9/13/2023 <5.00 ppt 5.00 ppt Not Detected
PFHxA 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/13/2023 <2.00 ppt 2.00 ppt Not Detected
PFUnA 9/13/2023 <2.00 ppt 2.00 ppt Not Detected
NFDHA 9/13/2023 <20.00 ppt 20.00 ppt Not Detected
PFDoA 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/13/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/13/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 9/13/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 9/13/2023 <6.00 ppt 6.00 ppt Not Detected
NEtFOSAA 9/13/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 9/13/2023 <7.00 ppt 7.00 ppt Not Detected
11Cl-PF3OUdS 9/13/2023 <5.00 ppt 5.00 ppt Not Detected
PFHpS 9/13/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 8/30/2023 <4.00 ppt 4.00 ppt Not Detected
PFUnA 8/30/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 8/30/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 8/30/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
PFNA 8/30/2023 <4.00 ppt 4.00 ppt Not Detected
HFPO-DA 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
PFTA 8/30/2023 <8.00 ppt 8.00 ppt Not Detected
PFTrDA 8/30/2023 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/30/2023 <6.00 ppt 6.00 ppt Not Detected
NFDHA 8/30/2023 <20.00 ppt 20.00 ppt Not Detected
PFHpS 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
PFMBA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected

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 Logan City 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 UTAH03010 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 Revised Total Coliform Rule RPT 6 SDWIS / UTAH03010 / 8000
2017 Revised Total Coliform Rule MON 3 SDWIS / UTAH03010 / 8000
2011 Lead and Copper Rule MR 3 SDWIS / UTAH03010 / 5000
2005 Nitrate MR 2 SDWIS / UTAH03010 / 1040
2003 Endrin MR 1 SDWIS / UTAH03010 / 2005
2003 BHC-GAMMA MR 1 SDWIS / UTAH03010 / 2010
2003 Toxaphene MR 1 SDWIS / UTAH03010 / 2020
2003 2,4,5-TP MR 1 SDWIS / UTAH03010 / 2110
2003 Aldicarb MR 1 SDWIS / UTAH03010 / 2047
2003 Carbofuran MR 1 SDWIS / UTAH03010 / 2046
2003 Chlordane MR 1 SDWIS / UTAH03010 / 2959
2003 Heptachlor epoxide MR 1 SDWIS / UTAH03010 / 2067
2003 Total Polychlorinated Biphenyls (PCB) MR 1 SDWIS / UTAH03010 / 2383
2003 Benzo(a)pyrene MR 1 SDWIS / UTAH03010 / 2306
2003 Di(2-ethylhexyl) adipate MR 1 SDWIS / UTAH03010 / 2035

How Logan City Water System Compares

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

Metric Logan City Water System Utah avg Federal benchmark
Total violations 194 159 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 55,540 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 Logan City Water System water safe to drink? ▼
Logan City Water System (PWS ID: UTAH03010) has 194 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 55,540 people using Groundwater sources.
How many people does Logan City Water System serve? ▼
Logan City Water System serves 55,540 people in Wellsville, Utah. It is a Local-owned system using Groundwater water sources with 12,256 service connections.
What type of violations does Logan City Water System have? ▼
Logan City Water System has 194 total violations: 0 health-based violations (MCL exceedances or treatment failures), 164 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Logan City Water System water? ▼
No. Logan City Water System was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Logan City Water System use? ▼
Logan City 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). 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.