Public water system · CO0261001
ActiveLone Star School
At a glance
Lone Star School (PWSID CO0261001) is an active non-transient non-community water system in Washington County, Colorado. It reports serving 149 people through 5 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 March 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
149
Service connections
5
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Lone Star School compare with other water systems in Washington County?
By EPA's size categories, Lone Star School is a very small system (500 people or fewer). Washington County has 6 active public water systems, and Lone Star School is the 5th-largest of them by population served. Its population served is well below the county average of 622 people per system, and accounts for 4% of the 3,731 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Lone Star School is about 65% below 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. Colorado has 183 active non-transient non-community water systems, 8.3% of the state's 2,207 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,437 Colorado systems (65%) list groundwater as their primary source.
Who owns and regulates Lone Star School?
EPA lists Lone Star School as owned by a local government. The CO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 4 of the 6 active systems in Washington County (67%) are also owned by a local government.
Does Lone Star School have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in March 2021. The violations listed here began between January 2020 and March 2021. By type: 10 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminants or rules involved are Public Notice, Revised Total Coliform Rule, p-Dichlorobenzene and cis-1,2-Dichloroethylene. EPA lists 12 as resolved. 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 |
|---|---|---|---|---|
| 2021-03-12 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Resolved |
| 2021-02-09 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | p-Dichlorobenzenecode 2969 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | cis-1,2-Dichloroethylenecode 2380 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloroethanecode 2980 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2020-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Resolved |
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.
Lone Star School: frequently asked questions
Who runs Lone Star School?
Lone Star School (PWSID CO0261001) is a non-transient non-community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does Lone Star School serve?
Lone Star School reports serving 149 people through 5 service connections in Washington County, Colorado.
Where does Lone Star School 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 Lone Star School 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 March 2021. 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 Lone Star School'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 March 2021. For current results, consult EPA ECHO, or the CO state drinking water program.
Where can I find Lone Star School's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lone Star School 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 Washington County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Akron Town of | Washington | 2,379 | Community | Groundwater |
| Otis Town of | Washington | 600 | Community | Groundwater |
| Woodlin School | Washington | 373 | Non-transient non-community | Groundwater |
| Arickaree School | Washington | 165 | Non-transient non-community | Groundwater |
| Washington County Anton Shop | Washington | 65 | 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, “Lone Star School, PWSID CO0261001, Colorado”, https://aquacensus.com/water-systems/colorado/lone-star-school-co0261001 (data as of October 1, 2026).