Public water system · NV0000237
ActiveTonopah Public Utilities
At a glance
Tonopah Public Utilities (PWSID NV0000237) is an active community water system in Nye County, Nevada. It reports serving 2,853 people through 1,517 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in October 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,853
Service connections
1,517
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Tonopah Public Utilities compare with other water systems in Nye County?
By EPA's size categories, Tonopah Public Utilities is a small system (501 to 3,300 people). Nye County has 89 active public water systems, and Tonopah Public Utilities is the 3rd-largest of them by population served. Its population served is about 7.5 times the county average of 379 people per system, and accounts for 8.5% of the 33,742 people reported by systems filed under the county. Across Nevada, the 643 active systems average 5,508 people each. Nationally, the average active community water system reports serving 6,703 people, so Tonopah Public Utilities is about 57% below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Nevada has 224 active community water systems, 35% of the state's 643 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 557 Nevada systems (87%) list groundwater as their primary source.
Who owns and regulates Tonopah Public Utilities?
EPA lists Tonopah Public Utilities as owned by a local government. The NV state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 13 of the 89 active systems in Nye County (15%) are also owned by a local government.
Does Tonopah Public Utilities have drinking water violations?
EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in October 2025. The violations listed here began between August 1991 and October 2025. By type: 6 monitoring and reporting and 3 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 5 as archived, 3 as resolved and 1 as unaddressed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2024-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2024-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Archived |
| 2007-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1998-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1995-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1993-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1991-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 9 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Tonopah Public Utilities: frequently asked questions
Who runs Tonopah Public Utilities?
Tonopah Public Utilities (PWSID NV0000237) is a community water system owned by a local government. It is regulated by the NV state drinking water program.
How many people does Tonopah Public Utilities serve?
Tonopah Public Utilities reports serving 2,853 people through 1,517 service connections in Nye County, Nevada.
Where does Tonopah Public Utilities get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Tonopah Public Utilities have any drinking water violations?
EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in October 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Tonopah Public Utilities' water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 9 violations for this system; 3 are health-based, and the most recent began in October 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the NV state drinking water program.
Where can I find Tonopah Public Utilities' water quality report?
As a community water system, Tonopah Public Utilities must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Nye County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Great Basin Water Company | Nye | 12,255 | Community | Groundwater |
| Mountain Falls Water System Gbwc | Nye | 4,345 | Community | Groundwater |
| Nnss Site Area A23 and 6 | Nye | 1,700 | Non-transient non-community | Groundwater |
| Round Mountain Puc | Nye | 1,200 | Community | Groundwater |
| Desert Utilities | Nye | 1,086 | Community | Groundwater |
| Country View Estates Gbwc | Nye | 1,072 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Tonopah Public Utilities, PWSID NV0000237, Nevada”, https://aquacensus.com/water-systems/nevada/tonopah-public-utilities-nv0000237 (data as of October 1, 2026).