Public water system · CO0315310

Active

Grand Mesa Visitor Center

At a glance

Grand Mesa Visitor Center (PWSID CO0315310) is an active transient non-community water system in Delta County, Colorado. It reports serving 406 people through 12 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2011.

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

Population served

406

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDCO0315310

System typeTransient non-community water system

Activity statusActive

Population served406

Service connections12

Primary water sourceGroundwater

Owner typeFederal government

Primacy agencyCO state drinking water program

City served—

StateColorado

ZIP—

CountyDelta County

How does Grand Mesa Visitor Center compare with other water systems in Delta County?

By EPA's size categories, Grand Mesa Visitor Center is a very small system (500 people or fewer). Delta County has 42 active public water systems. Its population served is about 38% below the county average of 660 people per system, and accounts for 1.5% of the 27,718 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 Grand Mesa Visitor Center is about 182% above 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 Grand Mesa Visitor Center?

EPA lists Grand Mesa Visitor Center 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 42 active systems in Delta County (4.8%) are also owned by the federal government.

Does Grand Mesa Visitor Center have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2011. The violations listed here began between July 2002 and July 2011. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (10 of them). EPA lists 12 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
2011-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2011-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2010-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2010-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2009-09-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2009-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2009-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2007-08-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2007-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2006-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2005-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2002-07-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved

The 12 most recent 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.

Grand Mesa Visitor Center: frequently asked questions

Who runs Grand Mesa Visitor Center?

Grand Mesa Visitor Center (PWSID CO0315310) 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 Grand Mesa Visitor Center serve?

Grand Mesa Visitor Center reports serving 406 people through 12 service connections in Delta County, Colorado.

Where does Grand Mesa Visitor Center 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 Grand Mesa Visitor Center have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2011. 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 Grand Mesa Visitor Center'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2011. For current results, consult EPA ECHO, or the CO state drinking water program.

Where can I find Grand Mesa Visitor Center's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Grand Mesa Visitor Center 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 Delta County

Water system	County	Population served	Type	Source
Delta City of	Delta	8,700	Community	Purchased surface water
Orchard City Town of	Delta	3,100	Community	Groundwater under influence of surface water
Upper Surface Creek Domestic Wua	Delta	2,800	Community	Surface water
Paonia Town of	Delta	2,499	Community	Groundwater under influence of surface water
Cedaredge Town of	Delta	2,400	Community	Surface water
Hotchkiss Town of	Delta	2,050	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, “Grand Mesa Visitor Center, PWSID CO0315310, Colorado”, https://aquacensus.com/water-systems/colorado/grand-mesa-visitor-center-co0315310 (data as of October 1, 2026).