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Community Water System · PWS MT0004363

Settlement The

Manhattan, Montana 59741 - drinking water served from groundwater sources to 100 people, tracked in EPA SDWIS and UCMR5.

100
People served
107
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 107 drinking-water violations at Settlement The - below the Montana per-system average.

107
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
100
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Settlement The

Settlement The is a private-owned community water system that delivers drinking water to 100 residents in Manhattan, Montana (Gallatin County) through 42 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 107 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 107 monitoring and reporting violations are on file. The most recent violation on record dates to 2014.

The most frequently cited contaminant at this system is E. COLI, recorded in 10 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%).

Settlement The's 107 violations sit below 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
100
Total Violations
107
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
42
County
Gallatin
School/Daycare
No
MCL Violations
0
Monitoring Violations
107
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
E. COLI MR 10 2014
Coliform (TCR) MR 8 2004
Endrin MR 3 2002
BHC-GAMMA MR 3 2002
OXAMYL MR 3 2002
LASSO MR 3 2002
2,4-D MR 3 2002
2,4,5-TP MR 3 2002
HEXACHLOROBENZENE MR 3 2002
Chlordane MR 3 2002
Fluoride MR 3 2008
Atrazine MR 3 2002
Benzo(a)pyrene MR 3 2002
Aldicarb MR 3 2002
Dinoseb MR 3 2002
Simazine MR 3 2002
Aldicarb sulfone MR 3 2002
Pentachlorophenol MR 3 2002
Methoxychlor MR 3 2002
Hexachlorocyclopentadiene MR 3 2002
Di(2-ethylhexyl) adipate MR 3 2002
Heptachlor epoxide MR 3 2002
Heptachlor MR 3 2002
Aldicarb sulfoxide MR 3 2002
Carbofuran MR 3 2002
Di(2-ethylhexyl) phthalate MR 3 2002
Dalapon MR 3 2002
Picloram MR 3 2002
Toxaphene MR 3 2002
Nickel MR 1 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 Settlement The.

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 MT0004363 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
2014 E. COLI MR 10 SDWIS / MT0004363 / 3014
2008 Fluoride MR 3 SDWIS / MT0004363 / 1025
2004 Coliform (TCR) MR 8 SDWIS / MT0004363 / 3100
2002 Endrin MR 3 SDWIS / MT0004363 / 2005
2002 BHC-GAMMA MR 3 SDWIS / MT0004363 / 2010
2002 OXAMYL MR 3 SDWIS / MT0004363 / 2036
2002 LASSO MR 3 SDWIS / MT0004363 / 2051
2002 2,4-D MR 3 SDWIS / MT0004363 / 2105
2002 2,4,5-TP MR 3 SDWIS / MT0004363 / 2110
2002 HEXACHLOROBENZENE MR 3 SDWIS / MT0004363 / 2274
2002 Chlordane MR 3 SDWIS / MT0004363 / 2959
2002 Atrazine MR 3 SDWIS / MT0004363 / 2050
2002 Benzo(a)pyrene MR 3 SDWIS / MT0004363 / 2306
2002 Aldicarb MR 3 SDWIS / MT0004363 / 2047
2002 Dinoseb MR 3 SDWIS / MT0004363 / 2041

How Settlement The Compares

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

Metric Settlement The Montana avg Federal benchmark
Total violations 107 131.4 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 100 492 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 Settlement The water safe to drink? ▼
Settlement The (PWS ID: MT0004363) has 107 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 100 people using Groundwater sources.
How many people does Settlement The serve? ▼
Settlement The serves 100 people in Manhattan, Montana. It is a Private-owned system using Groundwater water sources with 42 service connections.
What type of violations does Settlement The have? ▼
Settlement The has 107 total violations: 0 health-based violations (MCL exceedances or treatment failures), 107 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Settlement The water? ▼
No PFAS testing data is available for Settlement The under the EPA's UCMR5 monitoring program.
What water source does Settlement The use? ▼
Settlement The 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.