PlainWater
States08

HEART BUTTE WATER SYSTEM

PWS ID: 083090005 · BROWNING, 08 59417

HEART BUTTE WATER SYSTEM serves 400 people in BROWNING, 08 using Groundwater water sources. It has 34 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: HEART BUTTE WATER SYSTEM

HEART BUTTE WATER SYSTEM is a native american-owned community water system that delivers drinking water to 400 residents in BROWNING, 08 through 108 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 34 total violations for this system , of which 4 (12%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 21 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Revised Total Coliform Rule, recorded in 8 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 08, EPA tracks 160 public water systems serving 144,980 people, with 13,068 cumulative violations and 1,547 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 81.7 violations. HEART BUTTE WATER SYSTEM's 34 violations sit below the 08 average. Statewide, 10 of 13 UCMR5-tested systems have reported PFAS detections (76.9%). 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
400
Total Violations
34
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
108
School/Daycare
No
MCL Violations
0
Monitoring Violations
21
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Revised Total Coliform Rule MON 8 2024
Consumer Confidence Rule Other 8 2023
Lead and Copper Rule MR 7 2023
Groundwater Rule TT 4 2021
Coliform (TCR) MR 4 2014
Combined Radium (-226 and -228) MR 1 1976
Gross Alpha, Excl. Radon and U MR 1 1976

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 HEART BUTTE 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 083090005 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

08 Drinking Water Authority

08'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 08 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
2024 Revised Total Coliform Rule MON 8 SDWIS / 083090005 / 8000
2023 Consumer Confidence Rule Other 8 SDWIS / 083090005 / 7000
2023 Lead and Copper Rule MR 7 SDWIS / 083090005 / 5000
2021 Groundwater Rule TT 4 SDWIS / 083090005 / 0700
2014 Coliform (TCR) MR 4 SDWIS / 083090005 / 3100
1976 Combined Radium (-226 and -228) MR 1 SDWIS / 083090005 / 4010
1976 Gross Alpha, Excl. Radon and U MR 1 SDWIS / 083090005 / 4000

How HEART BUTTE WATER SYSTEM Compares

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

Metric HEART BUTTE WATER SYSTEM 08 avg Federal benchmark
Total violations 34 81.7 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 9.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 76.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 400 906 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 160 regulated public water systems in 08.

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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is HEART BUTTE WATER SYSTEM water safe to drink?
HEART BUTTE WATER SYSTEM (PWS ID: 083090005) has 34 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 400 people using Groundwater sources.
How many people does HEART BUTTE WATER SYSTEM serve?
HEART BUTTE WATER SYSTEM serves 400 people in BROWNING, 08. It is a Native American-owned system using Groundwater water sources with 108 service connections.
What type of violations does HEART BUTTE WATER SYSTEM have?
HEART BUTTE WATER SYSTEM has 34 total violations: 4 health-based violations (MCL exceedances or treatment failures), 21 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in HEART BUTTE WATER SYSTEM water?
No PFAS testing data is available for HEART BUTTE WATER SYSTEM under the EPA's UCMR5 monitoring program.
What water source does HEART BUTTE WATER SYSTEM use?
HEART BUTTE 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.

Explore PlainWater

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial