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Community Water System · PWS MT0002590

Beaverhead Jackson Water and Sewer Dist

Jackson, Montana 59736 - drinking water served from groundwater sources to 58 people, tracked in EPA SDWIS and UCMR5.

58
People served
1,241
EPA violations
397
Health-based
Untested
UCMR5 result

The verdict

EPA records 1,241 drinking-water violations at Beaverhead Jackson Water and Sewer Dist, 32% of them health-based - above the Montana per-system average.

1,241
Total EPA violations on record
32%
Health-based (MCL / treatment failure)
58
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Beaverhead Jackson Water and Sewer Dist

Beaverhead Jackson Water and Sewer Dist is a local-owned community water system that delivers drinking water to 58 residents in Jackson, Montana (Beaverhead County) through 29 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 1,241 total violations for this system , of which 397 (32%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 773 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Arsenic, recorded in 248 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 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%).

Beaverhead Jackson Water and Sewer Dist's 1,241 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
58
Total Violations
1,241
Health-Based Violations
397
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
29
County
Beaverhead
School/Daycare
No
MCL Violations
397
Monitoring Violations
773
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 248 2019
Combined Radium (-226 and -228) MCL 149 2019
Combined Radium (-226 and -228) MR 131 2017
Gross Alpha, Excl. Radon and U MR 125 2017
Arsenic MR 107 2017
Consumer Confidence Rule Other 69 2021
Coliform (TCR) MR 28 2012
Lead and Copper Rule MR 20 2021
Carbofuran MR 10 2011
Revised Total Coliform Rule MON 10 2021
Barium MR 7 2020
Fluoride MR 7 2020
Mercury MR 7 2020
Nickel MR 7 2020
Antimony, Total MR 7 2020
Selenium MR 7 2020
Cadmium MR 7 2020
Beryllium, Total MR 7 2020
Chromium MR 7 2020
Thallium, Total MR 7 2020
Dalapon MR 6 2008
2,4-D MR 6 2008
2,4,5-TP MR 6 2008
Pentachlorophenol MR 6 2008
1,2,4-Trichlorobenzene MR 6 2020
cis-1,2-Dichloroethylene MR 6 2020
Vinyl chloride MR 6 2020
trans-1,2-Dichloroethylene MR 6 2020
Carbon tetrachloride MR 6 2020
1,2-Dichloropropane MR 6 2020

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 Beaverhead Jackson 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 MT0002590 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
2021 Consumer Confidence Rule Other 69 SDWIS / MT0002590 / 7000
2021 Lead and Copper Rule MR 20 SDWIS / MT0002590 / 5000
2021 Revised Total Coliform Rule MON 10 SDWIS / MT0002590 / 8000
2020 Barium MR 7 SDWIS / MT0002590 / 1010
2020 Fluoride MR 7 SDWIS / MT0002590 / 1025
2020 Mercury MR 7 SDWIS / MT0002590 / 1035
2020 Nickel MR 7 SDWIS / MT0002590 / 1036
2020 Antimony, Total MR 7 SDWIS / MT0002590 / 1074
2020 Selenium MR 7 SDWIS / MT0002590 / 1045
2020 Cadmium MR 7 SDWIS / MT0002590 / 1015
2020 Beryllium, Total MR 7 SDWIS / MT0002590 / 1075
2020 Chromium MR 7 SDWIS / MT0002590 / 1020
2020 Thallium, Total MR 7 SDWIS / MT0002590 / 1085
2020 1,2,4-Trichlorobenzene MR 6 SDWIS / MT0002590 / 2378
2020 cis-1,2-Dichloroethylene MR 6 SDWIS / MT0002590 / 2380

How Beaverhead Jackson Water and Sewer Dist Compares

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

Metric Beaverhead Jackson Water and Sewer Dist Montana avg Federal benchmark
Total violations 1,241 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 397 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 58 492 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 Beaverhead Jackson Water and Sewer Dist water safe to drink? ▼
Beaverhead Jackson Water and Sewer Dist (PWS ID: MT0002590) has 1241 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 58 people using Groundwater sources.
How many people does Beaverhead Jackson Water and Sewer Dist serve? ▼
Beaverhead Jackson Water and Sewer Dist serves 58 people in Jackson, Montana. It is a Local-owned system using Groundwater water sources with 29 service connections.
What type of violations does Beaverhead Jackson Water and Sewer Dist have? ▼
Beaverhead Jackson Water and Sewer Dist has 1,241 total violations: 397 health-based violations (MCL exceedances or treatment failures), 773 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Beaverhead Jackson Water and Sewer Dist water? ▼
No PFAS testing data is available for Beaverhead Jackson Water and Sewer Dist under the EPA's UCMR5 monitoring program.
What water source does Beaverhead Jackson Water and Sewer Dist use? ▼
Beaverhead Jackson 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.