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States → EPA Region 9 — Tribal Water Systems

Community Water System · PWS 093200373

Las Vegas Paiute Snow Mountain

Las Vegas, EPA Region 9 — Tribal Water Systems 89106 - drinking water served from groundwater sources to 175 people, tracked in EPA SDWIS and UCMR5.

175
People served
432
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 432 drinking-water violations at Las Vegas Paiute Snow Mountain, 1% of them health-based.

432
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
175
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Las Vegas Paiute Snow Mountain

Las Vegas Paiute Snow Mountain is a native american-owned community water system that delivers drinking water to 175 residents in Las Vegas, EPA Region 9 — Tribal Water Systems through 15 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 432 total violations for this system , of which 6 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 344 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 Coliform (TCR), recorded in 92 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
175
Total Violations
432
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
15
School/Daycare
No
MCL Violations
3
Monitoring Violations
344
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 92 2016
Consumer Confidence Rule Other 25 2019
Gross Alpha, Excl. Radon and U MR 19 2014
Nitrate MR 17 2021
Combined Uranium MR 17 2014
Combined Radium (-226 and -228) MR 17 2014
Revised Total Coliform Rule MON 10 2023
Public Notice Other 9 2024
E. COLI MR 7 2023
Revised Total Coliform Rule RPT 6 2024
Thallium, Total MR 5 2011
Lead and Copper Rule MR 5 2009
Diquat MR 4 2005
Arsenic MR 3 2011
Cadmium MR 3 2011
Barium MR 3 2011
Chromium MR 3 2011
CYANIDE MR 3 2011
Fluoride MR 3 2011
Mercury MR 3 2011
Selenium MR 3 2011
Antimony, Total MR 3 2011
Beryllium, Total MR 3 2011
cis-1,2-Dichloroethylene MR 3 2014
Xylenes, Total MR 3 2014
DICHLOROMETHANE MR 3 2014
o-Dichlorobenzene MR 3 2014
Vinyl chloride MR 3 2014
1,1-Dichloroethylene MR 3 2014
trans-1,2-Dichloroethylene MR 3 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 Las Vegas Paiute Snow Mountain.

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 093200373 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 9 SDWIS / 093200373 / 7500
2024 Revised Total Coliform Rule RPT 6 SDWIS / 093200373 / 8000
2024 Groundwater Rule TT 3 SDWIS / 093200373 / 0700
2023 Revised Total Coliform Rule MON 10 SDWIS / 093200373 / 8000
2023 E. COLI MR 7 SDWIS / 093200373 / 3014
2021 Nitrate MR 17 SDWIS / 093200373 / 1040
2019 Consumer Confidence Rule Other 25 SDWIS / 093200373 / 7000
2016 Coliform (TCR) MR 92 SDWIS / 093200373 / 3100
2014 Gross Alpha, Excl. Radon and U MR 19 SDWIS / 093200373 / 4000
2014 Combined Uranium MR 17 SDWIS / 093200373 / 4006
2014 Combined Radium (-226 and -228) MR 17 SDWIS / 093200373 / 4010
2014 cis-1,2-Dichloroethylene MR 3 SDWIS / 093200373 / 2380
2014 Xylenes, Total MR 3 SDWIS / 093200373 / 2955
2014 DICHLOROMETHANE MR 3 SDWIS / 093200373 / 2964
2014 o-Dichlorobenzene MR 3 SDWIS / 093200373 / 2968

How Las Vegas Paiute Snow Mountain Compares

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

Metric Las Vegas Paiute Snow Mountain EPA Region 9 — Tribal Water Systems avg Federal benchmark
Total violations 432 - 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 175 - 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 Snow Mountain water safe to drink? ▼
Las Vegas Paiute Snow Mountain (PWS ID: 093200373) has 432 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 175 people using Groundwater sources.
How many people does Las Vegas Paiute Snow Mountain serve? ▼
Las Vegas Paiute Snow Mountain serves 175 people in Las Vegas, EPA Region 9 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 15 service connections.
What type of violations does Las Vegas Paiute Snow Mountain have? ▼
Las Vegas Paiute Snow Mountain has 432 total violations: 6 health-based violations (MCL exceedances or treatment failures), 344 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Las Vegas Paiute Snow Mountain water? ▼
No PFAS testing data is available for Las Vegas Paiute Snow Mountain under the EPA's UCMR5 monitoring program.
What water source does Las Vegas Paiute Snow Mountain use? ▼
Las Vegas Paiute Snow Mountain 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.