Public water system · CO0225319

Active

Granby Barn Store

At a glance

Granby Barn Store (PWSID CO0225319) is an active transient non-community water system in Grand County, Colorado. It reports serving 50 people through 1 service connection. Its primary water source is groundwater under influence of surface water, and EPA lists it as privately owned. EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in March 2023.

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

Population served

Service connections

Primary source

Groundwater under influence of surface water

System type

TNCWS

Transient non-community water system

System record

PWSIDCO0225319

System typeTransient non-community water system

Activity statusActive

Population served50

Service connections1

Primary water sourceGroundwater under influence of surface water

Owner typePrivate

Primacy agencyCO state drinking water program

City served—

StateColorado

ZIP—

CountyGrand County

How does Granby Barn Store compare with other water systems in Grand County?

By EPA's size categories, Granby Barn Store 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 less than 0.1% 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 Granby Barn Store is about 65% 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 under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 166 Colorado systems (7.5%) list groundwater under influence of surface water as their primary source.

Who owns and regulates Granby Barn Store?

EPA lists Granby Barn Store 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. 46 of the 77 active systems in Grand County (60%) are also privately owned.

Does Granby Barn Store have drinking water violations?

EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in March 2023. The violations listed here began between June 2015 and March 2023. By type: 5 monitoring and reporting and 3 required treatment not met. The contaminant or rule involved most often is Surface Water Treatment Rule (4 of them). EPA lists 8 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
2023-03-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2023-03-01	Required treatment not metTreatment Technique (SWTR and GWR) · code 41	Surface Water Treatment Rulecode 0200	Yes	Resolved
2023-02-01	Required treatment not metTreatment Technique (SWTR and GWR) · code 41	Surface Water Treatment Rulecode 0200	Yes	Resolved
2023-02-01	Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38	Interim Enhanced Surface Water Treatment Rulecode 0300	No	Resolved
2021-02-01	Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36	Surface Water Treatment Rulecode 0200	No	Resolved
2020-06-02	Required treatment not metFailure to Filter (SWTR) · code 42	Surface Water Treatment Rulecode 0200	Yes	Resolved
2015-11-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2015-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved

All 8 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.

Granby Barn Store: frequently asked questions

Who runs Granby Barn Store?

Granby Barn Store (PWSID CO0225319) is a transient non-community water system privately owned. It is regulated by the CO state drinking water program.

How many people does Granby Barn Store serve?

Granby Barn Store reports serving 50 people through 1 service connection in Grand County, Colorado.

Where does Granby Barn Store get its water?

EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.

Does Granby Barn Store have any drinking water violations?

EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in March 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 Granby Barn Store'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 8 violations for this system; 3 are health-based, and the most recent began in March 2023. For current results, consult EPA ECHO, or the CO state drinking water program.

Where can I find Granby Barn Store's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Granby Barn Store 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, “Granby Barn Store, PWSID CO0225319, Colorado”, https://aquacensus.com/water-systems/colorado/granby-barn-store-co0225319 (data as of October 1, 2026).