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Community Water System · PWS MT0003614

Jefferson Tracts Assoc Inc

Clancy, Montana 59634 - drinking water served from groundwater sources to 80 people, tracked in EPA SDWIS and UCMR5.

80
People served
185
EPA violations
16
Health-based
Untested
UCMR5 result

The verdict

EPA records 185 drinking-water violations at Jefferson Tracts Assoc Inc, 9% of them health-based - above the Montana per-system average.

185
Total EPA violations on record
9%
Health-based (MCL / treatment failure)
80
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Jefferson Tracts Assoc Inc

Jefferson Tracts Assoc Inc is a private-owned community water system that delivers drinking water to 80 residents in Clancy, Montana (Jefferson County) through 33 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 185 total violations for this system , of which 16 (9%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 162 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 Arsenic, recorded in 16 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%).

Jefferson Tracts Assoc Inc's 185 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
80
Total Violations
185
Health-Based Violations
16
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
33
County
Jefferson
School/Daycare
No
MCL Violations
16
Monitoring Violations
162
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 16 2010
Consumer Confidence Rule Other 7 2023
Glyphosate MR 6 2020
Total Polychlorinated Biphenyls (PCB) MR 6 2020
ETHYLENE DIBROMIDE MR 6 2020
Diquat MR 6 2020
1,2-DIBROMO-3-CHLOROPROPANE MR 6 2020
Endothall MR 6 2020
Arsenic MR 6 2010
Lead and Copper Rule MR 5 2025
Endrin MR 3 1999
Methoxychlor MR 3 1999
Toxaphene MR 3 1999
Di(2-ethylhexyl) adipate MR 3 1999
Simazine MR 3 1999
Aldicarb sulfoxide MR 3 1999
Aldicarb sulfone MR 3 1999
Aldicarb MR 3 1999
Atrazine MR 3 1999
2,3,7,8-TCDD MR 3 1999
Heptachlor MR 3 1999
2,4-D MR 3 1999
2,4,5-TP MR 3 1999
Benzo(a)pyrene MR 3 1999
Chlordane MR 3 1999
Barium MR 3 1999
Chromium MR 3 1999
Fluoride MR 3 1999
Mercury MR 3 1999
Nickel MR 3 1999

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 Jefferson Tracts Assoc Inc.

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 MT0003614 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 Lead and Copper Rule MR 5 SDWIS / MT0003614 / 5000
2023 Consumer Confidence Rule Other 7 SDWIS / MT0003614 / 7000
2020 Glyphosate MR 6 SDWIS / MT0003614 / 2034
2020 Total Polychlorinated Biphenyls (PCB) MR 6 SDWIS / MT0003614 / 2383
2020 ETHYLENE DIBROMIDE MR 6 SDWIS / MT0003614 / 2946
2020 Diquat MR 6 SDWIS / MT0003614 / 2032
2020 1,2-DIBROMO-3-CHLOROPROPANE MR 6 SDWIS / MT0003614 / 2931
2020 Endothall MR 6 SDWIS / MT0003614 / 2033
2020 CYANIDE MR 3 SDWIS / MT0003614 / 1024
2010 Arsenic MCL 16 SDWIS / MT0003614 / 1005
2010 Arsenic MR 6 SDWIS / MT0003614 / 1005
1999 Endrin MR 3 SDWIS / MT0003614 / 2005
1999 Methoxychlor MR 3 SDWIS / MT0003614 / 2015
1999 Toxaphene MR 3 SDWIS / MT0003614 / 2020
1999 Di(2-ethylhexyl) adipate MR 3 SDWIS / MT0003614 / 2035

How Jefferson Tracts Assoc Inc Compares

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

Metric Jefferson Tracts Assoc Inc Montana avg Federal benchmark
Total violations 185 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 16 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 80 492 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 Jefferson Tracts Assoc Inc water safe to drink? ▼
Jefferson Tracts Assoc Inc (PWS ID: MT0003614) has 185 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 80 people using Groundwater sources.
How many people does Jefferson Tracts Assoc Inc serve? ▼
Jefferson Tracts Assoc Inc serves 80 people in Clancy, Montana. It is a Private-owned system using Groundwater water sources with 33 service connections.
What type of violations does Jefferson Tracts Assoc Inc have? ▼
Jefferson Tracts Assoc Inc has 185 total violations: 16 health-based violations (MCL exceedances or treatment failures), 162 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Jefferson Tracts Assoc Inc water? ▼
No PFAS testing data is available for Jefferson Tracts Assoc Inc under the EPA's UCMR5 monitoring program.
What water source does Jefferson Tracts Assoc Inc use? ▼
Jefferson Tracts Assoc Inc 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.