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Community Water System · PWS ND0501030

Willow City City Of

Willow City, North Dakota 58384 - drinking water served from groundwater sources to 163 people, tracked in EPA SDWIS and UCMR5.

163
People served
185
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 185 drinking-water violations at Willow City City Of, 2% of them health-based - above the North Dakota per-system average.

185
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
163
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Willow City City Of

Willow City City Of is a local-owned community water system that delivers drinking water to 163 residents in Willow City, North Dakota (Bottineau County) through 130 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 185 total violations for this system , of which 3 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 178 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 1,2,4-Trichlorobenzene, recorded in 8 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 North Dakota, EPA tracks 368 public water systems serving 712,349 people, with 13,624 cumulative violations and 2,673 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 37 violations. Statewide, 34 of 38 UCMR5-tested systems have reported PFAS detections (89.5%).

Willow City City Of's 185 violations sit above the North Dakota 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
163
Total Violations
185
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
130
County
Bottineau
School/Daycare
No
MCL Violations
3
Monitoring Violations
178
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
1,2,4-Trichlorobenzene MR 8 2001
cis-1,2-Dichloroethylene MR 8 2001
Xylenes, Total MR 8 2001
DICHLOROMETHANE MR 8 2001
p-Dichlorobenzene MR 8 2001
1,1-Dichloroethylene MR 8 2001
trans-1,2-Dichloroethylene MR 8 2001
1,2-Dichloroethane MR 8 2001
Carbon tetrachloride MR 8 2001
1,2-Dichloropropane MR 8 2001
Trichloroethylene MR 8 2001
1,1,2-Trichloroethane MR 8 2001
CHLOROBENZENE MR 8 2001
Benzene MR 8 2001
Vinyl chloride MR 8 2001
1,1,1-Trichloroethane MR 8 2001
Tetrachloroethylene MR 8 2001
Ethylbenzene MR 8 2001
Styrene MR 8 2001
Toluene MR 8 2001
o-Dichlorobenzene MR 8 2001
Nitrate-Nitrite MR 4 2001
Coliform (TCR) MR 3 1999
Lead and Copper Rule MR 3 2013
Consumer Confidence Rule Other 3 2017
Nitrate-Nitrite MCL 3 1994

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 Willow City City Of.

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 ND0501030 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

North Dakota Drinking Water Authority

North Dakota'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 ND 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 Consumer Confidence Rule Other 3 SDWIS / ND0501030 / 7000
2013 Lead and Copper Rule MR 3 SDWIS / ND0501030 / 5000
2001 1,2,4-Trichlorobenzene MR 8 SDWIS / ND0501030 / 2378
2001 cis-1,2-Dichloroethylene MR 8 SDWIS / ND0501030 / 2380
2001 Xylenes, Total MR 8 SDWIS / ND0501030 / 2955
2001 DICHLOROMETHANE MR 8 SDWIS / ND0501030 / 2964
2001 p-Dichlorobenzene MR 8 SDWIS / ND0501030 / 2969
2001 1,1-Dichloroethylene MR 8 SDWIS / ND0501030 / 2977
2001 trans-1,2-Dichloroethylene MR 8 SDWIS / ND0501030 / 2979
2001 1,2-Dichloroethane MR 8 SDWIS / ND0501030 / 2980
2001 Carbon tetrachloride MR 8 SDWIS / ND0501030 / 2982
2001 1,2-Dichloropropane MR 8 SDWIS / ND0501030 / 2983
2001 Trichloroethylene MR 8 SDWIS / ND0501030 / 2984
2001 1,1,2-Trichloroethane MR 8 SDWIS / ND0501030 / 2985
2001 CHLOROBENZENE MR 8 SDWIS / ND0501030 / 2989

How Willow City City Of Compares

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

Metric Willow City City Of North Dakota avg Federal benchmark
Total violations 185 37 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 7.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 89.5% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 163 1,936 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 368 regulated public water systems in North Dakota.

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 Willow City City Of water safe to drink?
Willow City City Of (PWS ID: ND0501030) has 185 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 163 people using Groundwater sources.
How many people does Willow City City Of serve?
Willow City City Of serves 163 people in Willow City, North Dakota. It is a Local-owned system using Groundwater water sources with 130 service connections.
What type of violations does Willow City City Of have?
Willow City City Of has 185 total violations: 3 health-based violations (MCL exceedances or treatment failures), 178 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Willow City City Of water?
No PFAS testing data is available for Willow City City Of under the EPA's UCMR5 monitoring program.
What water source does Willow City City Of use?
Willow City City Of 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.
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.