Public water system · NV0000913
ActiveTri General Improvement District
At a glance
Tri General Improvement District (PWSID NV0000913) is an active non-transient non-community water system in Storey County, Nevada. It reports serving 13,360 people through 238 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
13,360
Service connections
238
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Tri General Improvement District compare with other water systems in Storey County?
By EPA's size categories, Tri General Improvement District is a large system (10,001 to 100,000 people). Storey County has 5 active public water systems, and Tri General Improvement District is the largest of them by population served. Its population served is about 4.1 times the county average of 3,233 people per system, and accounts for 83% of the 16,165 people reported by systems filed under the county. Across Nevada, the 643 active systems average 5,508 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Tri General Improvement District is about 31 times that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Nevada has 161 active non-transient non-community water systems, 25% 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 Tri General Improvement District?
EPA lists Tri General Improvement District 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. 3 of the 5 active systems in Storey County (60%) are also owned by a local government.
Does Tri General Improvement District have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2025. The violations listed here began between January 2023 and July 2025. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Glyphosate (2 of them). EPA lists 10 as archived and 2 as resolved. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Glyphosatecode 2034 | No | Archived |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Di(2-ethylhexyl) phthalatecode 2039 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Simazinecode 2037 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylene dibromide (EDB)code 2946 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Alachlor (Lasso)code 2051 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Lindane (gamma-BHC)code 2010 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dalaponcode 2031 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Glyphosatecode 2034 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dibromo-3-chloropropane (DBCP)code 2931 | No | Archived |
| 2023-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | No | Archived |
The 12 most recent 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.
Tri General Improvement District: frequently asked questions
Who runs Tri General Improvement District?
Tri General Improvement District (PWSID NV0000913) is a non-transient non-community water system owned by a local government. It is regulated by the NV state drinking water program.
How many people does Tri General Improvement District serve?
Tri General Improvement District reports serving 13,360 people through 238 service connections in Storey County, Nevada.
Where does Tri General Improvement District 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 Tri General Improvement District have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 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 Tri General Improvement District's 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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2025. For current results, consult EPA ECHO, or the NV state drinking water program.
Where can I find Tri General Improvement District's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Tri General Improvement District is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Storey County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Storey County Water District | Storey | 1,420 | Community | Surface water |
| Canyon Gid | Storey | 1,310 | Community | Groundwater |
| Ep Minerals LLC Clark | Storey | 50 | Non-transient non-community | Groundwater |
| Asia Union Electronic Chemicals Reno | Storey | 25 | Non-transient non-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, “Tri General Improvement District, PWSID NV0000913, Nevada”, https://aquacensus.com/water-systems/nevada/tri-general-improvement-district-nv0000913 (data as of October 1, 2026).