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Community Water System · PWS ND0500620

Maxbass City Of

Maxbass, North Dakota 58760 - drinking water served from groundwater sources to 84 people, tracked in EPA SDWIS and UCMR5.

84
People served
137
EPA violations
43
Health-based
Untested
UCMR5 result

The verdict

EPA records 137 drinking-water violations at Maxbass City Of, 31% of them health-based - above the North Dakota per-system average.

137
Total EPA violations on record
31%
Health-based (MCL / treatment failure)
84
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Maxbass City Of

Maxbass City Of is a local-owned community water system that delivers drinking water to 84 residents in Maxbass, North Dakota (Bottineau County) through 55 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 137 total violations for this system , of which 43 (31%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 73 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is TTHM, recorded in 37 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 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%).

Maxbass City Of's 137 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
84
Total Violations
137
Health-Based Violations
43
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
55
County
Bottineau
School/Daycare
No
MCL Violations
37
Monitoring Violations
73
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 37 2025
Chlorine MR 30 2021
Coliform (TCR) MR 20 2013
Chloramine MR 9 2019
Revised Total Coliform Rule TT 5 2020
TTHM MR 4 2021
Total Haloacetic Acids (HAA5) MR 4 2021
Lead and Copper Rule MR 3 2020
Revised Total Coliform Rule MON 3 2019
Consumer Confidence Rule Other 1 2016
Lead and Copper Rule TT 1 1994
Public Notice Other 1 2021

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 Maxbass 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 ND0500620 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
2025 TTHM MCL 37 SDWIS / ND0500620 / 2950
2021 Chlorine MR 30 SDWIS / ND0500620 / 0999
2021 TTHM MR 4 SDWIS / ND0500620 / 2950
2021 Total Haloacetic Acids (HAA5) MR 4 SDWIS / ND0500620 / 2456
2021 Public Notice Other 1 SDWIS / ND0500620 / 7500
2020 Revised Total Coliform Rule TT 5 SDWIS / ND0500620 / 8000
2020 Lead and Copper Rule MR 3 SDWIS / ND0500620 / 5000
2019 Chloramine MR 9 SDWIS / ND0500620 / 1006
2019 Revised Total Coliform Rule MON 3 SDWIS / ND0500620 / 8000
2016 Consumer Confidence Rule Other 1 SDWIS / ND0500620 / 7000
2013 Coliform (TCR) MR 20 SDWIS / ND0500620 / 3100
1994 Lead and Copper Rule TT 1 SDWIS / ND0500620 / 5000

How Maxbass City Of Compares

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

Metric Maxbass City Of North Dakota avg Federal benchmark
Total violations 137 37 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 43 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 84 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 Maxbass City Of water safe to drink? ▼
Maxbass City Of (PWS ID: ND0500620) has 137 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 84 people using Groundwater sources.
How many people does Maxbass City Of serve? ▼
Maxbass City Of serves 84 people in Maxbass, North Dakota. It is a Local-owned system using Groundwater water sources with 55 service connections.
What type of violations does Maxbass City Of have? ▼
Maxbass City Of has 137 total violations: 43 health-based violations (MCL exceedances or treatment failures), 73 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Maxbass City Of water? ▼
No PFAS testing data is available for Maxbass City Of under the EPA's UCMR5 monitoring program.
What water source does Maxbass City Of use? ▼
Maxbass 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.

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.