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States → EPA Region 8 — Tribal Water Systems

Non-Transient Non-Community Water System · PWS 083090067

Lame Deer High School

Lame Deer, EPA Region 8 — Tribal Water Systems 59043 - drinking water served from groundwater sources to 260 people, tracked in EPA SDWIS and UCMR5.

260
People served
48
EPA violations
8
Health-based
Untested
UCMR5 result

The verdict

EPA records 48 drinking-water violations at Lame Deer High School, 17% of them health-based.

48
Total EPA violations on record
17%
Health-based (MCL / treatment failure)
260
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lame Deer High School

Lame Deer High School is a native american-owned non-transient non-community water system that delivers drinking water to 260 residents in Lame Deer, EPA Region 8 — Tribal Water Systems through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 48 total violations for this system , of which 8 (17%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 40 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 Chlorine, 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.

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
260
Total Violations
48
Health-Based Violations
8
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Native American
Connections
1
School/Daycare
Yes
MCL Violations
2
Monitoring Violations
40
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Chlorine MR 18 2023
Coliform (TCR) MR 5 2013
Groundwater Rule TT 4 2025
Lead and Copper Rule MR 4 2023
TTHM MR 3 2022
Total Haloacetic Acids (HAA5) MR 3 2022
CYANIDE MR 3 2005
E. COLI MR 2 2022
Nitrate-Nitrite MR 2 2017
Revised Total Coliform Rule TT 2 2023
Revised Total Coliform Rule MCL 2 2022

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 Lame Deer High School.

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 083090067 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
2025 Groundwater Rule TT 4 SDWIS / 083090067 / 0700
2023 Chlorine MR 18 SDWIS / 083090067 / 0999
2023 Lead and Copper Rule MR 4 SDWIS / 083090067 / 5000
2023 Revised Total Coliform Rule TT 2 SDWIS / 083090067 / 8000
2022 TTHM MR 3 SDWIS / 083090067 / 2950
2022 Total Haloacetic Acids (HAA5) MR 3 SDWIS / 083090067 / 2456
2022 E. COLI MR 2 SDWIS / 083090067 / 3014
2022 Revised Total Coliform Rule MCL 2 SDWIS / 083090067 / 8000
2017 Nitrate-Nitrite MR 2 SDWIS / 083090067 / 1038
2013 Coliform (TCR) MR 5 SDWIS / 083090067 / 3100
2005 CYANIDE MR 3 SDWIS / 083090067 / 1024

How Lame Deer High School Compares

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

Metric Lame Deer High School EPA Region 8 — Tribal Water Systems avg Federal benchmark
Total violations 48 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 8 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 260 - 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 Lame Deer High School water safe to drink? ▼
Lame Deer High School (PWS ID: 083090067) has 48 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 260 people using Groundwater sources.
How many people does Lame Deer High School serve? ▼
Lame Deer High School serves 260 people in Lame Deer, EPA Region 8 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 1 service connections.
What type of violations does Lame Deer High School have? ▼
Lame Deer High School has 48 total violations: 8 health-based violations (MCL exceedances or treatment failures), 40 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lame Deer High School water? ▼
No PFAS testing data is available for Lame Deer High School under the EPA's UCMR5 monitoring program.
What water source does Lame Deer High School use? ▼
Lame Deer High School uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.