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Community Water System · PWS MT0000458

Ashland Water and Sewer Dist

Ashland, Montana 59003 - drinking water served from groundwater sources to 400 people, tracked in EPA SDWIS and UCMR5.

400
People served
650
EPA violations
18
Health-based
Untested
UCMR5 result

The verdict

EPA records 650 drinking-water violations at Ashland Water and Sewer Dist, 3% of them health-based - above the Montana per-system average.

650
Total EPA violations on record
3%
Health-based (MCL / treatment failure)
400
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Ashland Water and Sewer Dist

Ashland Water and Sewer Dist is a local-owned community water system that delivers drinking water to 400 residents in Ashland, Montana (Rosebud County) through 98 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 650 total violations for this system , of which 18 (3%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 621 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 Combined Radium (-226 and -228), recorded in 25 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 Montana, EPA tracks 2,263 public water systems serving 1,112,267 people, with 297,270 cumulative violations and 25,922 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 131.4 violations. Statewide, 28 of 45 UCMR5-tested systems have reported PFAS detections (62.2%).

Ashland Water and Sewer Dist's 650 violations sit above the Montana 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
400
Total Violations
650
Health-Based Violations
18
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
98
County
Rosebud
School/Daycare
No
MCL Violations
15
Monitoring Violations
621
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Radium (-226 and -228) MR 25 2020
1,2,4-Trichlorobenzene MR 24 2020
cis-1,2-Dichloroethylene MR 24 2020
Xylenes, Total MR 24 2020
p-Dichlorobenzene MR 24 2020
1,1,1-Trichloroethane MR 24 2020
Carbon tetrachloride MR 24 2020
Trichloroethylene MR 24 2020
Tetrachloroethylene MR 24 2020
Benzene MR 24 2020
Toluene MR 24 2020
trans-1,2-Dichloroethylene MR 24 2020
1,2-Dichloropropane MR 24 2020
Ethylbenzene MR 24 2020
1,1-Dichloroethylene MR 24 2020
o-Dichlorobenzene MR 24 2020
1,2-Dichloroethane MR 24 2020
Styrene MR 24 2020
DICHLOROMETHANE MR 24 2020
Vinyl chloride MR 24 2020
CHLOROBENZENE MR 24 2020
1,1,2-Trichloroethane MR 24 2020
Coliform (TCR) MR 23 2010
Lead and Copper Rule MR 15 2022
Coliform (TCR) MCL 13 2006
Fluoride MR 12 2023
Consumer Confidence Rule Other 11 2024
E. COLI MR 11 2023
Nitrate-Nitrite MR 7 2021
Revised Total Coliform Rule MON 7 2025

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 Ashland Water and Sewer Dist.

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 MT0000458 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Montana Drinking Water Authority

Montana'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 MT 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 Revised Total Coliform Rule MON 7 SDWIS / MT0000458 / 8000
2024 Consumer Confidence Rule Other 11 SDWIS / MT0000458 / 7000
2023 Fluoride MR 12 SDWIS / MT0000458 / 1025
2023 E. COLI MR 11 SDWIS / MT0000458 / 3014
2023 Revised Total Coliform Rule TT 3 SDWIS / MT0000458 / 8000
2022 Lead and Copper Rule MR 15 SDWIS / MT0000458 / 5000
2021 Nitrate-Nitrite MR 7 SDWIS / MT0000458 / 1038
2020 Combined Radium (-226 and -228) MR 25 SDWIS / MT0000458 / 4010
2020 1,2,4-Trichlorobenzene MR 24 SDWIS / MT0000458 / 2378
2020 cis-1,2-Dichloroethylene MR 24 SDWIS / MT0000458 / 2380
2020 Xylenes, Total MR 24 SDWIS / MT0000458 / 2955
2020 p-Dichlorobenzene MR 24 SDWIS / MT0000458 / 2969
2020 1,1,1-Trichloroethane MR 24 SDWIS / MT0000458 / 2981
2020 Carbon tetrachloride MR 24 SDWIS / MT0000458 / 2982
2020 Trichloroethylene MR 24 SDWIS / MT0000458 / 2984

How Ashland Water and Sewer Dist Compares

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

Metric Ashland Water and Sewer Dist Montana avg Federal benchmark
Total violations 650 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 18 11.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 62.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 400 492 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,263 regulated public water systems in Montana.

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 Ashland Water and Sewer Dist water safe to drink? ▼
Ashland Water and Sewer Dist (PWS ID: MT0000458) has 650 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 Ashland Water and Sewer Dist serve? ▼
Ashland Water and Sewer Dist serves 400 people in Ashland, Montana. It is a Local-owned system using Groundwater water sources with 98 service connections.
What type of violations does Ashland Water and Sewer Dist have? ▼
Ashland Water and Sewer Dist has 650 total violations: 18 health-based violations (MCL exceedances or treatment failures), 621 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Ashland Water and Sewer Dist water? ▼
No PFAS testing data is available for Ashland Water and Sewer Dist under the EPA's UCMR5 monitoring program.
What water source does Ashland Water and Sewer Dist use? ▼
Ashland Water and Sewer Dist 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.