PlainWater

Community Water System · PWS 083890016

Little Shell

New Town, EPA Region 8 — Tribal Water Systems 58763 - drinking water served from groundwater sources to 1,500 people, tracked in EPA SDWIS and UCMR5.

1,500
People served
15
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 15 drinking-water violations at Little Shell.

15
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
1,500
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Little Shell

Little Shell is a federal-owned community water system that delivers drinking water to 1,500 residents in New Town, EPA Region 8 — Tribal Water Systems through 371 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 15 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 15 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 6 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 8 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

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
1,500
Total Violations
15
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Federal
Connections
371
School/Daycare
No
MCL Violations
0
Monitoring Violations
15
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 6 2014
Lead and Copper Rule MR 5 2014
Revised Total Coliform Rule MON 2 2023
TTHM MR 1 2014
Total Haloacetic Acids (HAA5) MR 1 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 Little Shell.

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 083890016 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 8 — Tribal Water Systems Drinking Water Authority

EPA Region 8 — Tribal Water Systems'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 08 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
2023 Revised Total Coliform Rule MON 2 SDWIS / 083890016 / 8000
2014 Coliform (TCR) MR 6 SDWIS / 083890016 / 3100
2014 Lead and Copper Rule MR 5 SDWIS / 083890016 / 5000
2014 TTHM MR 1 SDWIS / 083890016 / 2950
2014 Total Haloacetic Acids (HAA5) MR 1 SDWIS / 083890016 / 2456

How Little Shell Compares

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

Metric Little Shell EPA Region 8 — Tribal Water Systems avg Federal benchmark
Total violations 15 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1,500 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 8 — Tribal Water Systems.

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 Little Shell water safe to drink?
Little Shell (PWS ID: 083890016) has 15 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,500 people using Groundwater sources.
How many people does Little Shell serve?
Little Shell serves 1,500 people in New Town, EPA Region 8 — Tribal Water Systems. It is a Federal-owned system using Groundwater water sources with 371 service connections.
What type of violations does Little Shell have?
Little Shell has 15 total violations: 0 health-based violations (MCL exceedances or treatment failures), 15 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Little Shell water?
No PFAS testing data is available for Little Shell under the EPA's UCMR5 monitoring program.
What water source does Little Shell use?
Little Shell 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.
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.