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Community Water System · PWS MT0000618

Elkhorn Health and Rehabilitation LLC

Clancy, Montana 59634 - drinking water served from groundwater sources to 89 people, tracked in EPA SDWIS and UCMR5.

89
People served
257
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 257 drinking-water violations at Elkhorn Health and Rehabilitation LLC - above the Montana per-system average.

257
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
89
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Elkhorn Health and Rehabilitation LLC

Elkhorn Health and Rehabilitation LLC is a private-owned community water system that delivers drinking water to 89 residents in Clancy, Montana (Jefferson County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 257 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 227 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 Consumer Confidence Rule, recorded in 30 violations (Other). 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%).

Elkhorn Health and Rehabilitation LLC's 257 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
89
Total Violations
257
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
1
County
Jefferson
School/Daycare
No
MCL Violations
0
Monitoring Violations
227
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 30 2024
Coliform (TCR) MR 23 2008
2,4,5-TP MR 15 2020
Lead and Copper Rule MR 6 2025
Arsenic MR 4 2002
Cadmium MR 4 2011
Chromium MR 4 2011
Fluoride MR 4 2011
Selenium MR 4 2011
Barium MR 4 2011
Mercury MR 4 2011
Asbestos MR 4 2011
Nickel MR 3 2002
Endrin MR 3 2002
BHC-GAMMA MR 3 2002
Di(2-ethylhexyl) phthalate MR 3 2002
Picloram MR 3 2002
Dinoseb MR 3 2002
Hexachlorocyclopentadiene MR 3 2002
Aldicarb MR 3 2002
LASSO MR 3 2002
Heptachlor MR 3 2002
Heptachlor epoxide MR 3 2002
2,4-D MR 3 2002
HEXACHLOROBENZENE MR 3 2002
Benzo(a)pyrene MR 3 2002
Pentachlorophenol MR 3 2002
1,2,4-Trichlorobenzene MR 3 2002
cis-1,2-Dichloroethylene MR 3 2002
o-Dichlorobenzene MR 3 2002

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 Elkhorn Health and Rehabilitation LLC.

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 MT0000618 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 6 SDWIS / MT0000618 / 5000
2024 Consumer Confidence Rule Other 30 SDWIS / MT0000618 / 7000
2020 2,4,5-TP MR 15 SDWIS / MT0000618 / 2110
2011 Cadmium MR 4 SDWIS / MT0000618 / 1015
2011 Chromium MR 4 SDWIS / MT0000618 / 1020
2011 Fluoride MR 4 SDWIS / MT0000618 / 1025
2011 Selenium MR 4 SDWIS / MT0000618 / 1045
2011 Barium MR 4 SDWIS / MT0000618 / 1010
2011 Mercury MR 4 SDWIS / MT0000618 / 1035
2011 Asbestos MR 4 SDWIS / MT0000618 / 1094
2008 Coliform (TCR) MR 23 SDWIS / MT0000618 / 3100
2002 Arsenic MR 4 SDWIS / MT0000618 / 1005
2002 Nickel MR 3 SDWIS / MT0000618 / 1036
2002 Endrin MR 3 SDWIS / MT0000618 / 2005
2002 BHC-GAMMA MR 3 SDWIS / MT0000618 / 2010

How Elkhorn Health and Rehabilitation LLC Compares

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

Metric Elkhorn Health and Rehabilitation LLC Montana avg Federal benchmark
Total violations 257 131.4 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 89 492 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 Elkhorn Health and Rehabilitation LLC water safe to drink? ▼
Elkhorn Health and Rehabilitation LLC (PWS ID: MT0000618) has 257 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 89 people using Groundwater sources.
How many people does Elkhorn Health and Rehabilitation LLC serve? ▼
Elkhorn Health and Rehabilitation LLC serves 89 people in Clancy, Montana. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Elkhorn Health and Rehabilitation LLC have? ▼
Elkhorn Health and Rehabilitation LLC has 257 total violations: 0 health-based violations (MCL exceedances or treatment failures), 227 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Elkhorn Health and Rehabilitation LLC water? ▼
No PFAS testing data is available for Elkhorn Health and Rehabilitation LLC under the EPA's UCMR5 monitoring program.
What water source does Elkhorn Health and Rehabilitation LLC use? ▼
Elkhorn Health and Rehabilitation LLC 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.