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Community Water System · PWS MT0000154

Yellowstone Boys and Girls Ranch

Billings, Montana 59106 - drinking water served from groundwater sources to 240 people, tracked in EPA SDWIS and UCMR5.

240
People served
691
EPA violations
14
Health-based
Untested
UCMR5 result

The verdict

EPA records 691 drinking-water violations at Yellowstone Boys and Girls Ranch, 2% of them health-based - above the Montana per-system average.

691
Total EPA violations on record
2%
Health-based (MCL / treatment failure)
240
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Yellowstone Boys and Girls Ranch

Yellowstone Boys and Girls Ranch is a private-owned community water system that delivers drinking water to 240 residents in Billings, Montana (Yellowstone County) through 48 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 691 total violations for this system , of which 14 (2%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 657 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 Nitrate-Nitrite, recorded in 33 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%).

Yellowstone Boys and Girls Ranch's 691 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
240
Total Violations
691
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
48
County
Yellowstone
School/Daycare
Yes
MCL Violations
14
Monitoring Violations
657
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate-Nitrite MR 33 2021
Coliform (TCR) MR 22 2008
TTHM MR 20 2006
Consumer Confidence Rule Other 19 2006
Total Haloacetic Acids (HAA5) MR 19 2006
Nitrate-Nitrite MCL 14 2012
1,2,4-Trichlorobenzene MR 11 2021
cis-1,2-Dichloroethylene MR 11 2021
Xylenes, Total MR 11 2021
DICHLOROMETHANE MR 11 2021
o-Dichlorobenzene MR 11 2021
p-Dichlorobenzene MR 11 2021
1,1-Dichloroethylene MR 11 2021
1,2-Dichloroethane MR 11 2021
1,1,1-Trichloroethane MR 11 2021
Trichloroethylene MR 11 2021
1,1,2-Trichloroethane MR 11 2021
CHLOROBENZENE MR 11 2021
Ethylbenzene MR 11 2021
Styrene MR 11 2021
Vinyl chloride MR 11 2021
trans-1,2-Dichloroethylene MR 11 2021
Tetrachloroethylene MR 11 2021
Benzene MR 11 2021
Toluene MR 11 2021
1,2-Dichloropropane MR 11 2021
Carbon tetrachloride MR 11 2021
Endrin MR 8 2017
BHC-GAMMA MR 8 2017
Toxaphene MR 8 2017

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 Yellowstone Boys and Girls Ranch.

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 MT0000154 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 Nitrate-Nitrite MR 33 SDWIS / MT0000154 / 1038
2021 1,2,4-Trichlorobenzene MR 11 SDWIS / MT0000154 / 2378
2021 cis-1,2-Dichloroethylene MR 11 SDWIS / MT0000154 / 2380
2021 Xylenes, Total MR 11 SDWIS / MT0000154 / 2955
2021 DICHLOROMETHANE MR 11 SDWIS / MT0000154 / 2964
2021 o-Dichlorobenzene MR 11 SDWIS / MT0000154 / 2968
2021 p-Dichlorobenzene MR 11 SDWIS / MT0000154 / 2969
2021 1,1-Dichloroethylene MR 11 SDWIS / MT0000154 / 2977
2021 1,2-Dichloroethane MR 11 SDWIS / MT0000154 / 2980
2021 1,1,1-Trichloroethane MR 11 SDWIS / MT0000154 / 2981
2021 Trichloroethylene MR 11 SDWIS / MT0000154 / 2984
2021 1,1,2-Trichloroethane MR 11 SDWIS / MT0000154 / 2985
2021 CHLOROBENZENE MR 11 SDWIS / MT0000154 / 2989
2021 Ethylbenzene MR 11 SDWIS / MT0000154 / 2992
2021 Styrene MR 11 SDWIS / MT0000154 / 2996

How Yellowstone Boys and Girls Ranch Compares

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

Metric Yellowstone Boys and Girls Ranch Montana avg Federal benchmark
Total violations 691 131.4 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 14 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 240 492 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 Yellowstone Boys and Girls Ranch water safe to drink? ▼
Yellowstone Boys and Girls Ranch (PWS ID: MT0000154) has 691 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 240 people using Groundwater sources.
How many people does Yellowstone Boys and Girls Ranch serve? ▼
Yellowstone Boys and Girls Ranch serves 240 people in Billings, Montana. It is a Private-owned system using Groundwater water sources with 48 service connections.
What type of violations does Yellowstone Boys and Girls Ranch have? ▼
Yellowstone Boys and Girls Ranch has 691 total violations: 14 health-based violations (MCL exceedances or treatment failures), 657 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Yellowstone Boys and Girls Ranch water? ▼
No PFAS testing data is available for Yellowstone Boys and Girls Ranch under the EPA's UCMR5 monitoring program.
What water source does Yellowstone Boys and Girls Ranch use? ▼
Yellowstone Boys and Girls Ranch 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.