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Community Water System · PWS MT0000079

Spruce Park Mobile Village

Billings, Montana 59102 - drinking water served from groundwater sources to 48 people, tracked in EPA SDWIS and UCMR5.

48
People served
313
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 313 drinking-water violations at Spruce Park Mobile Village - above the Montana per-system average.

313
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
48
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Spruce Park Mobile Village

Spruce Park Mobile Village is a private-owned community water system that delivers drinking water to 48 residents in Billings, Montana (Flathead County) through 19 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 313 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 297 monitoring and reporting violations are on file. The most recent violation on record dates to 2004.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 18 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, 5 of 45 UCMR5-tested systems have reported PFAS detections (11.1%).

Spruce Park Mobile Village's 313 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
48
Total Violations
313
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
19
County
Flathead
School/Daycare
No
MCL Violations
0
Monitoring Violations
297
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 18 2004
Lead and Copper Rule MR 13 2004
Consumer Confidence Rule Other 13 2004
Nitrate-Nitrite MR 8 2002
Simazine MR 7 1999
OXAMYL MR 7 1999
Dalapon MR 7 1999
Heptachlor epoxide MR 7 1999
Heptachlor MR 7 1999
Chlordane MR 7 1999
Carbofuran MR 7 1999
Atrazine MR 7 1999
Aldicarb sulfone MR 7 1999
Aldicarb MR 7 1999
LASSO MR 7 1999
2,4,5-TP MR 7 1999
2,4-D MR 7 1999
Toxaphene MR 7 1999
BHC-GAMMA MR 7 1999
Methoxychlor MR 7 1999
Di(2-ethylhexyl) adipate MR 7 1999
Picloram MR 7 1999
Dinoseb MR 7 1999
Aldicarb sulfoxide MR 7 1999
Benzo(a)pyrene MR 7 1999
Pentachlorophenol MR 7 1999
Total Polychlorinated Biphenyls (PCB) MR 7 1999
Endrin MR 7 1999
Di(2-ethylhexyl) phthalate MR 5 1999
Hexachlorocyclopentadiene MR 5 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 Spruce Park Mobile Village.

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 MT0000079 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
2004 Coliform (TCR) MR 18 SDWIS / MT0000079 / 3100
2004 Lead and Copper Rule MR 13 SDWIS / MT0000079 / 5000
2004 Consumer Confidence Rule Other 13 SDWIS / MT0000079 / 7000
2002 Nitrate-Nitrite MR 8 SDWIS / MT0000079 / 1038
1999 Simazine MR 7 SDWIS / MT0000079 / 2037
1999 OXAMYL MR 7 SDWIS / MT0000079 / 2036
1999 Dalapon MR 7 SDWIS / MT0000079 / 2031
1999 Heptachlor epoxide MR 7 SDWIS / MT0000079 / 2067
1999 Heptachlor MR 7 SDWIS / MT0000079 / 2065
1999 Chlordane MR 7 SDWIS / MT0000079 / 2959
1999 Carbofuran MR 7 SDWIS / MT0000079 / 2046
1999 Atrazine MR 7 SDWIS / MT0000079 / 2050
1999 Aldicarb sulfone MR 7 SDWIS / MT0000079 / 2044
1999 Aldicarb MR 7 SDWIS / MT0000079 / 2047
1999 LASSO MR 7 SDWIS / MT0000079 / 2051

How Spruce Park Mobile Village Compares

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

Metric Spruce Park Mobile Village Montana avg Federal benchmark
Total violations 313 131.4 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 11.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 48 492 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 Spruce Park Mobile Village water safe to drink? ▼
Spruce Park Mobile Village (PWS ID: MT0000079) has 313 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 48 people using Groundwater sources.
How many people does Spruce Park Mobile Village serve? ▼
Spruce Park Mobile Village serves 48 people in Billings, Montana. It is a Private-owned system using Groundwater water sources with 19 service connections.
What type of violations does Spruce Park Mobile Village have? ▼
Spruce Park Mobile Village has 313 total violations: 0 health-based violations (MCL exceedances or treatment failures), 297 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Spruce Park Mobile Village water? ▼
No PFAS testing data is available for Spruce Park Mobile Village under the EPA's UCMR5 monitoring program.
What water source does Spruce Park Mobile Village use? ▼
Spruce Park Mobile Village 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.