Public water system · CO0257750

Active

Woods Lake Cg

At a glance

Woods Lake Cg (PWSID CO0257750) is an active transient non-community water system in San Miguel County, Colorado. It reports serving 26 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in January 2020.

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

PWSIDCO0257750

System typeTransient non-community water system

Activity statusActive

Population served26

Service connections1

Primary water sourceGroundwater

Owner typeFederal government

Primacy agencyCO state drinking water program

City served—

StateColorado

ZIP—

CountySan Miguel County

How does Woods Lake Cg compare with other water systems in San Miguel County?

By EPA's size categories, Woods Lake Cg is a very small system (500 people or fewer). San Miguel County has 20 active public water systems. Its population served is well below the county average of 1,103 people per system, and accounts for 0.1% of the 22,054 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 Woods Lake Cg is well 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 Woods Lake Cg?

EPA lists Woods 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. 3 of the 20 active systems in San Miguel County (15%) are also owned by the federal government.

Does Woods Lake Cg have drinking water violations?

EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in January 2020. The violations listed here began between July 2004 and January 2020. By type: 8 monitoring and reporting, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 10 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
2020-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2019-09-18	Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76	Public Noticecode 7500	No	Resolved
2019-01-16	Required treatment not metFailure To Address Deficiency · code 45	Groundwater Rulecode 0700	Yes	Resolved
2019-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2015-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2014-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2011-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitritecode 1041	No	Resolved
2005-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2005-09-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved
2004-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved

All 10 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.

Woods Lake Cg: frequently asked questions

Who runs Woods Lake Cg?

Woods Lake Cg (PWSID CO0257750) 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 Woods Lake Cg serve?

Woods Lake Cg reports serving 26 people through 1 service connection in San Miguel County, Colorado.

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

EPA's records list 10 violations for this system; 1 is health-based, and the most recent began in January 2020. 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 Woods 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 10 violations for this system; 1 is health-based, and the most recent began in January 2020. For current results, consult EPA ECHO, or the CO state drinking water program.

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

The annual Consumer Confidence Report requirement applies to community water systems. Woods 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 San Miguel County

Water system	County	Population served	Type	Source
Mountain Village Town of	San Miguel	9,700	Community	Groundwater
Telluride Town of	San Miguel	7,900	Community	Surface water
Norwood Water Commission	San Miguel	1,700	Community	Surface water
Telluride Regional Airport	San Miguel	485	Transient non-community	Groundwater
Aldasoro Ranch Hoc	San Miguel	412	Community	Groundwater
Ilium Valley Ws	San Miguel	322	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, “Woods Lake Cg, PWSID CO0257750, Colorado”, https://aquacensus.com/water-systems/colorado/woods-lake-cg-co0257750 (data as of October 1, 2026).