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Community Water System · PWS IA1222044

Bristow Muni Water Supply

Bristow, Iowa 50611 - drinking water served from groundwater sources to 145 people, tracked in EPA SDWIS and UCMR5.

145
People served
135
EPA violations
42
Health-based
Untested
UCMR5 result

The verdict

EPA records 135 drinking-water violations at Bristow Muni Water Supply, 31% of them health-based - above the Iowa per-system average.

135
Total EPA violations on record
31%
Health-based (MCL / treatment failure)
145
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Bristow Muni Water Supply

Bristow Muni Water Supply is a local-owned community water system that delivers drinking water to 145 residents in Bristow, Iowa (Butler County) through 83 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 135 total violations for this system , of which 42 (31%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 69 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 Nitrate, recorded in 34 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 Iowa, EPA tracks 1,795 public water systems serving 3,114,444 people, with 138,271 cumulative violations and 27,946 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 77 violations. Statewide, 32 of 152 UCMR5-tested systems have reported PFAS detections (21.1%).

Bristow Muni Water Supply's 135 violations sit above the Iowa 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
145
Total Violations
135
Health-Based Violations
42
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
83
County
Butler
School/Daycare
No
MCL Violations
42
Monitoring Violations
69
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MCL 34 2025
Nitrate MR 30 2014
Coliform (TCR) MR 19 2014
Gross Alpha, Excl. Radon and U MR 11 1990
Coliform (TCR) MCL 8 1999
Total Haloacetic Acids (HAA5) MR 6 2005
Di(2-ethylhexyl) phthalate MR 3 1996

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 Bristow Muni Water Supply.

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 IA1222044 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Iowa Drinking Water Authority

Iowa'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 IA 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 Nitrate MCL 34 SDWIS / IA1222044 / 1040
2014 Nitrate MR 30 SDWIS / IA1222044 / 1040
2014 Coliform (TCR) MR 19 SDWIS / IA1222044 / 3100
2005 Total Haloacetic Acids (HAA5) MR 6 SDWIS / IA1222044 / 2456
1999 Coliform (TCR) MCL 8 SDWIS / IA1222044 / 3100
1996 Di(2-ethylhexyl) phthalate MR 3 SDWIS / IA1222044 / 2039
1990 Gross Alpha, Excl. Radon and U MR 11 SDWIS / IA1222044 / 4000

How Bristow Muni Water Supply Compares

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

Metric Bristow Muni Water Supply Iowa avg Federal benchmark
Total violations 135 77 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 42 15.6 Indicates a contaminant exceeded a federal MCL
PFAS detection None 21.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 145 1,735 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,795 regulated public water systems in Iowa.

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 Bristow Muni Water Supply water safe to drink? ▼
Bristow Muni Water Supply (PWS ID: IA1222044) has 135 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 145 people using Groundwater sources.
How many people does Bristow Muni Water Supply serve? ▼
Bristow Muni Water Supply serves 145 people in Bristow, Iowa. It is a Local-owned system using Groundwater water sources with 83 service connections.
What type of violations does Bristow Muni Water Supply have? ▼
Bristow Muni Water Supply has 135 total violations: 42 health-based violations (MCL exceedances or treatment failures), 69 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Bristow Muni Water Supply water? ▼
No PFAS testing data is available for Bristow Muni Water Supply under the EPA's UCMR5 monitoring program.
What water source does Bristow Muni Water Supply use? ▼
Bristow Muni Water Supply 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.