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Transient Non-Community Water System · PWS NV0000881

Dayton Tap House LLC

Dayton, Nevada 89403 - drinking water served from groundwater sources to 50 people, tracked in EPA SDWIS and UCMR5.

50
People served
218
EPA violations
14
Health-based
Untested
UCMR5 result

The verdict

EPA records 218 drinking-water violations at Dayton Tap House LLC, 6% of them health-based - above the Nevada per-system average.

218
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
50
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Dayton Tap House LLC

Dayton Tap House LLC is a private-owned transient non-community water system that delivers drinking water to 50 residents in Dayton, Nevada (Lyon County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 218 total violations for this system , of which 14 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 202 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 Coliform (TCR), recorded in 80 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 Nevada, EPA tracks 589 public water systems serving 3,455,285 people, with 56,333 cumulative violations and 6,657 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 95.6 violations. Statewide, 50 of 57 UCMR5-tested systems have reported PFAS detections (87.7%).

Dayton Tap House LLC's 218 violations sit above the Nevada 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
50
Total Violations
218
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Private
Connections
1
County
Lyon
School/Daycare
No
MCL Violations
3
Monitoring Violations
202
Treatment Tech Violations
11

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 80 2015
Revised Total Coliform Rule MON 68 2024
Nitrate MR 40 2022
Revised Total Coliform Rule TT 9 2025
Nitrite MR 7 2017
E. COLI MR 7 2025
Coliform (TCR) MCL 3 2012
Groundwater Rule TT 2 2023

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 Dayton Tap House LLC.

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 NV0000881 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Nevada Drinking Water Authority

Nevada'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 NV 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 Revised Total Coliform Rule TT 9 SDWIS / NV0000881 / 8000
2025 E. COLI MR 7 SDWIS / NV0000881 / 3014
2024 Revised Total Coliform Rule MON 68 SDWIS / NV0000881 / 8000
2023 Groundwater Rule TT 2 SDWIS / NV0000881 / 0700
2022 Nitrate MR 40 SDWIS / NV0000881 / 1040
2017 Nitrite MR 7 SDWIS / NV0000881 / 1041
2015 Coliform (TCR) MR 80 SDWIS / NV0000881 / 3100
2012 Coliform (TCR) MCL 3 SDWIS / NV0000881 / 3100

How Dayton Tap House LLC Compares

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

Metric Dayton Tap House LLC Nevada avg Federal benchmark
Total violations 218 95.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 14 11.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 87.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 50 5,866 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 589 regulated public water systems in Nevada.

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 Dayton Tap House LLC water safe to drink? ▼
Dayton Tap House LLC (PWS ID: NV0000881) has 218 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 50 people using Groundwater sources.
How many people does Dayton Tap House LLC serve? ▼
Dayton Tap House LLC serves 50 people in Dayton, Nevada. It is a Private-owned system using Groundwater water sources with 1 service connections.
What type of violations does Dayton Tap House LLC have? ▼
Dayton Tap House LLC has 218 total violations: 14 health-based violations (MCL exceedances or treatment failures), 202 monitoring/reporting violations, and 11 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Dayton Tap House LLC water? ▼
No PFAS testing data is available for Dayton Tap House LLC under the EPA's UCMR5 monitoring program.
What water source does Dayton Tap House LLC use? ▼
Dayton Tap House LLC uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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.