Public water system · CO0325193
ActiveCutthroat Bay Group Area
At a glance
Cutthroat Bay Group Area (PWSID CO0325193) is an active transient non-community water system in Grand County, Colorado. It reports serving 150 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
150
Service connections
2
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Cutthroat Bay Group Area compare with other water systems in Grand County?
By EPA's size categories, Cutthroat Bay Group Area is a very small system (500 people or fewer). Grand County has 77 active public water systems. Its population served is well below the county average of 728 people per system, and accounts for 0.3% of the 56,067 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 Cutthroat Bay Group Area is roughly in line with 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 Cutthroat Bay Group Area?
EPA lists Cutthroat Bay Group Area 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. 14 of the 77 active systems in Grand County (18%) are also owned by the federal government.
Does Cutthroat Bay Group Area have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2018. By type: 1 public notice, recordkeeping or other. The contaminant or rule involved is Revised Total Coliform Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2018-07-24 | Public notice, recordkeeping or otherSample Siting Plan Errors (RTCR) · code 5A | Revised Total Coliform Rulecode 8000 | No | Resolved |
The one violation in EPA's records.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.
Cutthroat Bay Group Area: frequently asked questions
Who runs Cutthroat Bay Group Area?
Cutthroat Bay Group Area (PWSID CO0325193) 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 Cutthroat Bay Group Area serve?
Cutthroat Bay Group Area reports serving 150 people through 2 service connections in Grand County, Colorado.
Where does Cutthroat Bay Group Area 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 Cutthroat Bay Group Area have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in July 2018. 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 Cutthroat Bay Group Area'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 one violation for this system; it is not health-based, and the most recent began in July 2018. For current results, consult EPA ECHO, or the CO state drinking water program.
Where can I find Cutthroat Bay Group Area's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Cutthroat Bay Group Area 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 Grand County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Winter Park Wsd | Grand | 6,635 | Community | Surface water |
| Grand County Water No 1 | Grand | 5,400 | Community | Surface water |
| Winter Park Resort Sunspot | Grand | 5,006 | Transient non-community | Groundwater |
| Winter Park Resort Lunch Rock | Grand | 5,001 | Transient non-community | Groundwater |
| Winter Park Resort Snoasis | Grand | 5,001 | Transient non-community | Groundwater |
| Winter Park Ranch Wsd | Grand | 3,250 | 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, “Cutthroat Bay Group Area, PWSID CO0325193, Colorado”, https://aquacensus.com/water-systems/colorado/cutthroat-bay-group-area-co0325193 (data as of October 1, 2026).