Public water system · CO0256517
ActiveMolas Lake Park
At a glance
Molas Lake Park (PWSID CO0256517) is an active transient non-community water system in San Juan County, Colorado. It reports serving 60 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 6 violations for this system; none is health-based, and the most recent began in June 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
60
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Molas Lake Park compare with other water systems in San Juan County?
By EPA's size categories, Molas Lake Park is a very small system (500 people or fewer). San Juan County has 4 active public water systems, and Molas Lake Park is the 3rd-largest of them by population served. Its population served is well below the county average of 749 people per system, and accounts for 2% of the 2,994 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Molas Lake Park is about 58% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Colorado has 956 active transient non-community water systems, 43% 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 Molas Lake Park?
EPA lists Molas Lake Park as privately owned. 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. 2 of the 4 active systems in San Juan County (50%) are also privately owned.
Does Molas Lake Park have drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in June 2017. The violations listed here began between July 2001 and June 2017. By type: 5 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2017-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2010-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2008-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2001-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 6 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.
Molas Lake Park: frequently asked questions
Who runs Molas Lake Park?
Molas Lake Park (PWSID CO0256517) is a transient non-community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Molas Lake Park serve?
Molas Lake Park reports serving 60 people through 2 service connections in San Juan County, Colorado.
Where does Molas Lake Park 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 Molas Lake Park have any drinking water violations?
EPA's records list 6 violations for this system; none is health-based, and the most recent began in June 2017. 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 Molas Lake Park'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. EPA's records list 6 violations for this system; none is health-based, and the most recent began in June 2017. For current results, consult EPA ECHO, or the CO state drinking water program.
Where can I find Molas Lake Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Molas Lake Park is a 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 San Juan County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Silverton Town of | San Juan | 2,387 | Community | Surface water |
| Grizzly Peak Water Sales | San Juan | 503 | Non-transient non-community | Groundwater |
| South Mineral Cg | San Juan | 44 | Transient non-community | Groundwater under influence of surface water |
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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, “Molas Lake Park, PWSID CO0256517, Colorado”, https://aquacensus.com/water-systems/colorado/molas-lake-park-co0256517 (data as of October 1, 2026).