Public water system · CO0323755

Active

Trappers Lake Cg

At a glance

Trappers Lake Cg (PWSID CO0323755) is an active transient non-community water system in Garfield County, Colorado. It reports serving 95 people through 19 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in July 2023.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDCO0323755

System typeTransient non-community water system

Activity statusActive

Population served95

Service connections19

Primary water sourceGroundwater

Owner typeFederal government

Primacy agencyCO state drinking water program

City served—

StateColorado

ZIP—

CountyGarfield County

How does Trappers Lake Cg compare with other water systems in Garfield County?

By EPA's size categories, Trappers Lake Cg is a very small system (500 people or fewer). Garfield County has 83 active public water systems. Its population served is well below the county average of 728 people per system, and accounts for 0.2% of the 60,386 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 Trappers Lake Cg is about 34% 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 Trappers Lake Cg?

EPA lists Trappers Lake Cg as owned by the federal 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. 2 of the 83 active systems in Garfield County (2.4%) are also owned by the federal government.

Does Trappers Lake Cg have drinking water violations?

EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in July 2023. The violations listed here began between June 1996 and July 2023. By type: 5 monitoring and reporting, 2 monitoring, 1 reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 9 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
2023-07-11	ReportingReport Startup Procedures Cert Form (RTCR) · code 4C	Revised Total Coliform Rulecode 8000	No	Resolved
2023-06-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2016-09-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2012-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2012-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2009-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2006-09-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1998-09-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
1996-06-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved

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.

Trappers Lake Cg: frequently asked questions

Who runs Trappers Lake Cg?

Trappers Lake Cg (PWSID CO0323755) is a transient non-community water system owned by the federal government. It is regulated by the CO state drinking water program.

How many people does Trappers Lake Cg serve?

Trappers Lake Cg reports serving 95 people through 19 service connections in Garfield County, Colorado.

Where does Trappers Lake Cg 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 Trappers Lake Cg have any drinking water violations?

EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in July 2023. 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 Trappers Lake Cg'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 9 violations for this system; 1 is health-based, and the most recent began in July 2023. For current results, consult EPA ECHO, or the CO state drinking water program.

Where can I find Trappers Lake Cg's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Trappers Lake Cg 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 Garfield County

Water system	County	Population served	Type	Source
Rifle City of	Garfield	9,489	Community	Surface water
Glenwood Springs City of	Garfield	9,428	Community	Surface water
Carbondale Town of	Garfield	6,700	Community	Surface water
New Castle Town of	Garfield	5,024	Community	Surface water
Battlement Mesa Md	Garfield	4,100	Community	Surface water
Silt Town of	Garfield	3,536	Community	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, “Trappers Lake Cg, PWSID CO0323755, Colorado”, https://aquacensus.com/water-systems/colorado/trappers-lake-cg-co0323755 (data as of October 1, 2026).