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Community Water System · PWS MT0000276

Lima Town Of

Lima, Montana 59739 - drinking water served from groundwater sources to 279 people, tracked in EPA SDWIS and UCMR5.

279
People served
176
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 176 drinking-water violations at Lima Town Of - above the Montana per-system average.

176
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
279
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lima Town Of

Lima Town Of is a local-owned community water system that delivers drinking water to 279 residents in Lima, Montana (Beaverhead County) through 205 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 176 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 174 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 30 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%).

Lima Town Of's 176 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
279
Total Violations
176
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
205
County
Beaverhead
School/Daycare
No
MCL Violations
0
Monitoring Violations
174
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 30 2015
E. COLI MR 8 2019
Nitrate-Nitrite MR 7 2007
Dalapon MR 6 2005
Picloram MR 6 2005
2,4-D MR 6 2005
Dinoseb MR 6 2005
2,4,5-TP MR 6 2005
Pentachlorophenol MR 6 2005
Lead and Copper Rule MR 5 2004
Antimony, Total MR 4 2002
Thallium, Total MR 4 2002
Beryllium, Total MR 4 2002
Nickel MR 4 2002
Nitrate MR 3 1997
Arsenic MR 3 2002
1,2,4-Trichlorobenzene MR 3 2005
cis-1,2-Dichloroethylene MR 3 2005
DICHLOROMETHANE MR 3 2005
1,2-Dichloroethane MR 3 2005
1,1,1-Trichloroethane MR 3 2005
Carbon tetrachloride MR 3 2005
1,2-Dichloropropane MR 3 2005
Trichloroethylene MR 3 2005
Tetrachloroethylene MR 3 2005
Benzene MR 3 2005
Toluene MR 3 2005
Styrene MR 3 2005
Revised Total Coliform Rule MON 3 2017
Xylenes, Total MR 3 2005

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 Lima Town Of.

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 MT0000276 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
2019 E. COLI MR 8 SDWIS / MT0000276 / 3014
2017 Revised Total Coliform Rule MON 3 SDWIS / MT0000276 / 8000
2015 Coliform (TCR) MR 30 SDWIS / MT0000276 / 3100
2007 Nitrate-Nitrite MR 7 SDWIS / MT0000276 / 1038
2005 Dalapon MR 6 SDWIS / MT0000276 / 2031
2005 Picloram MR 6 SDWIS / MT0000276 / 2040
2005 2,4-D MR 6 SDWIS / MT0000276 / 2105
2005 Dinoseb MR 6 SDWIS / MT0000276 / 2041
2005 2,4,5-TP MR 6 SDWIS / MT0000276 / 2110
2005 Pentachlorophenol MR 6 SDWIS / MT0000276 / 2326
2005 1,2,4-Trichlorobenzene MR 3 SDWIS / MT0000276 / 2378
2005 cis-1,2-Dichloroethylene MR 3 SDWIS / MT0000276 / 2380
2005 DICHLOROMETHANE MR 3 SDWIS / MT0000276 / 2964
2005 1,2-Dichloroethane MR 3 SDWIS / MT0000276 / 2980
2005 1,1,1-Trichloroethane MR 3 SDWIS / MT0000276 / 2981

How Lima Town Of Compares

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

Metric Lima Town Of Montana avg Federal benchmark
Total violations 176 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 279 492 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 Lima Town Of water safe to drink? ▼
Lima Town Of (PWS ID: MT0000276) has 176 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 279 people using Groundwater sources.
How many people does Lima Town Of serve? ▼
Lima Town Of serves 279 people in Lima, Montana. It is a Local-owned system using Groundwater water sources with 205 service connections.
What type of violations does Lima Town Of have? ▼
Lima Town Of has 176 total violations: 0 health-based violations (MCL exceedances or treatment failures), 174 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lima Town Of water? ▼
No PFAS testing data is available for Lima Town Of under the EPA's UCMR5 monitoring program.
What water source does Lima Town Of use? ▼
Lima Town Of 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.