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States → EPA Region 9 — Tribal Water Systems

Community Water System · PWS 093200376

Las Vegas Paiute Colony

Las Vegas, EPA Region 9 — Tribal Water Systems 89106 - drinking water served from surface water sources to 100 people, tracked in EPA SDWIS and UCMR5.

100
People served
79
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 79 drinking-water violations at Las Vegas Paiute Colony, 8% of them health-based.

79
Total EPA violations on record
8%
Health-based (MCL / treatment failure)
100
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Las Vegas Paiute Colony

Las Vegas Paiute Colony is a native american-owned community water system that delivers drinking water to 100 residents in Las Vegas, EPA Region 9 — Tribal Water Systems through 20 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 79 total violations for this system , of which 6 (8%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 52 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Total Haloacetic Acids (HAA5), recorded in 12 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 9 — 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
100
Total Violations
79
Health-Based Violations
6
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Native American
Connections
20
School/Daycare
No
MCL Violations
4
Monitoring Violations
52
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Total Haloacetic Acids (HAA5) MR 12 2022
TTHM MR 12 2022
Public Notice Other 12 2024
Revised Total Coliform Rule MON 11 2023
Chlorine MR 7 2023
Coliform (TCR) MR 6 2016
Revised Total Coliform Rule RPT 5 2024
TTHM MCL 4 2020
Lead and Copper Rule MR 3 2019
Consumer Confidence Rule Other 3 2019
Groundwater Rule TT 2 2024
Revised Total Coliform Rule Other 1 2016
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 1 2013

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 Las Vegas Paiute Colony.

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 093200376 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 9 — Tribal Water Systems Drinking Water Authority

EPA Region 9 — 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 09 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
2024 Public Notice Other 12 SDWIS / 093200376 / 7500
2024 Revised Total Coliform Rule RPT 5 SDWIS / 093200376 / 8000
2024 Groundwater Rule TT 2 SDWIS / 093200376 / 0700
2023 Revised Total Coliform Rule MON 11 SDWIS / 093200376 / 8000
2023 Chlorine MR 7 SDWIS / 093200376 / 0999
2022 Total Haloacetic Acids (HAA5) MR 12 SDWIS / 093200376 / 2456
2022 TTHM MR 12 SDWIS / 093200376 / 2950
2020 TTHM MCL 4 SDWIS / 093200376 / 2950
2019 Lead and Copper Rule MR 3 SDWIS / 093200376 / 5000
2019 Consumer Confidence Rule Other 3 SDWIS / 093200376 / 7000
2016 Coliform (TCR) MR 6 SDWIS / 093200376 / 3100
2016 Revised Total Coliform Rule Other 1 SDWIS / 093200376 / 8000
2013 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 1 SDWIS / 093200376 / 0600

How Las Vegas Paiute Colony Compares

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

Metric Las Vegas Paiute Colony EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 79 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 100 - 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 9 — 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 Las Vegas Paiute Colony water safe to drink? ▼
Las Vegas Paiute Colony (PWS ID: 093200376) has 79 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 100 people using Surface Water sources.
How many people does Las Vegas Paiute Colony serve? ▼
Las Vegas Paiute Colony serves 100 people in Las Vegas, EPA Region 9 — Tribal Water Systems. It is a Native American-owned system using Surface Water water sources with 20 service connections.
What type of violations does Las Vegas Paiute Colony have? ▼
Las Vegas Paiute Colony has 79 total violations: 6 health-based violations (MCL exceedances or treatment failures), 52 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Las Vegas Paiute Colony water? ▼
No PFAS testing data is available for Las Vegas Paiute Colony under the EPA's UCMR5 monitoring program.
What water source does Las Vegas Paiute Colony use? ▼
Las Vegas Paiute Colony uses Surface Water 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.