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States → Montana

Community Water System · PWS MT0002515

Skyline Tr CT and RV Park

Dillon, Montana 59725 - drinking water served from groundwater sources to 75 people, tracked in EPA SDWIS and UCMR5.

75
People served
893
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 893 drinking-water violations at Skyline Tr CT and RV Park, 1% of them health-based - above the Montana per-system average.

893
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
75
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Skyline Tr CT and RV Park

Skyline Tr CT and RV Park is a private-owned community water system that delivers drinking water to 75 residents in Dillon, Montana (Beaverhead County) through 51 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 893 total violations for this system , of which 6 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 866 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 Lead and Copper Rule, recorded in 68 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%).

Skyline Tr CT and RV Park's 893 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
75
Total Violations
893
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
51
County
Beaverhead
School/Daycare
No
MCL Violations
0
Monitoring Violations
866
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 68 2024
Coliform (TCR) MR 38 2015
Consumer Confidence Rule Other 20 2025
Nitrate MR 17 1998
Arsenic MR 14 2014
Gross Alpha, Excl. Radon and U MR 13 2018
Endrin MR 13 2014
BHC-GAMMA MR 13 2014
Methoxychlor MR 13 2014
Toxaphene MR 13 2014
Di(2-ethylhexyl) adipate MR 13 2014
Di(2-ethylhexyl) phthalate MR 13 2014
Picloram MR 13 2014
Dinoseb MR 13 2014
Hexachlorocyclopentadiene MR 13 2014
Carbofuran MR 13 2014
Atrazine MR 13 2014
Heptachlor MR 13 2014
2,4-D MR 13 2014
2,4,5-TP MR 13 2014
Benzo(a)pyrene MR 13 2014
Barium MR 13 2014
Cadmium MR 13 2014
Chromium MR 13 2014
Selenium MR 13 2014
Dalapon MR 13 2014
Simazine MR 13 2014
Heptachlor epoxide MR 13 2014
Chlordane MR 13 2014
Mercury MR 13 2014

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 Skyline Tr CT and RV Park.

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 MT0002515 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 Consumer Confidence Rule Other 20 SDWIS / MT0002515 / 7000
2024 Lead and Copper Rule MR 68 SDWIS / MT0002515 / 5000
2022 E. COLI MR 6 SDWIS / MT0002515 / 3014
2022 Revised Total Coliform Rule TT 6 SDWIS / MT0002515 / 8000
2021 Revised Total Coliform Rule MON 6 SDWIS / MT0002515 / 8000
2018 Gross Alpha, Excl. Radon and U MR 13 SDWIS / MT0002515 / 4000
2017 Combined Uranium MR 6 SDWIS / MT0002515 / 4006
2017 Combined Radium (-226 and -228) MR 5 SDWIS / MT0002515 / 4010
2015 Coliform (TCR) MR 38 SDWIS / MT0002515 / 3100
2014 Arsenic MR 14 SDWIS / MT0002515 / 1005
2014 Endrin MR 13 SDWIS / MT0002515 / 2005
2014 BHC-GAMMA MR 13 SDWIS / MT0002515 / 2010
2014 Methoxychlor MR 13 SDWIS / MT0002515 / 2015
2014 Toxaphene MR 13 SDWIS / MT0002515 / 2020
2014 Di(2-ethylhexyl) adipate MR 13 SDWIS / MT0002515 / 2035

How Skyline Tr CT and RV Park Compares

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

Metric Skyline Tr CT and RV Park Montana avg Federal benchmark
Total violations 893 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 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 75 492 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 Skyline Tr CT and RV Park water safe to drink? ▼
Skyline Tr CT and RV Park (PWS ID: MT0002515) has 893 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 75 people using Groundwater sources.
How many people does Skyline Tr CT and RV Park serve? ▼
Skyline Tr CT and RV Park serves 75 people in Dillon, Montana. It is a Private-owned system using Groundwater water sources with 51 service connections.
What type of violations does Skyline Tr CT and RV Park have? ▼
Skyline Tr CT and RV Park has 893 total violations: 6 health-based violations (MCL exceedances or treatment failures), 866 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Skyline Tr CT and RV Park water? ▼
No PFAS testing data is available for Skyline Tr CT and RV Park under the EPA's UCMR5 monitoring program.
What water source does Skyline Tr CT and RV Park use? ▼
Skyline Tr CT and RV Park 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.