Public water system · CO0151750
ActiveSt Charles Mesa Wd
At a glance
St Charles Mesa Wd (PWSID CO0151750) is an active community water system in Pueblo County, Colorado. It reports serving 9,690 people through 4,364 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2009.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
9,690
Service connections
4,364
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does St Charles Mesa Wd compare with other water systems in Pueblo County?
By EPA's size categories, St Charles Mesa Wd is a medium system (3,301 to 10,000 people). Pueblo County has 27 active public water systems, and St Charles Mesa Wd is the 3rd-largest of them by population served. Its population served is about 57% above the county average of 6,191 people per system, and accounts for 5.8% of the 167,168 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active community water system reports serving 6,703 people, so St Charles Mesa Wd is about 45% above that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Colorado has 1,068 active community water systems, 48% of the state's 2,207 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 228 Colorado systems (10%) list surface water as their primary source.
Who owns and regulates St Charles Mesa Wd?
EPA lists St Charles Mesa Wd as owned by a local 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. 9 of the 27 active systems in Pueblo County (33%) are also owned by a local government.
Does St Charles Mesa Wd have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2009. The violations listed here began between January 2005 and April 2009. By type: 11 monitoring and reporting and 1 required treatment not met. The contaminant or rule involved most often is Dalapon (2 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 |
|---|---|---|---|---|
| 2009-04-01 | Required treatment not metTreatment Technique Precursor Removal · code 46 | Carbon, totalcode 2920 | Yes | Resolved |
| 2007-10-01 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Stage 2 Disinfectants and Disinfection Byproducts Rulecode 0600 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dalaponcode 2031 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Lindane (gamma-BHC)code 2010 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Methoxychlorcode 2015 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dalaponcode 2031 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Simazinecode 2037 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Endothallcode 2033 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Picloramcode 2040 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Pentachlorophenolcode 2326 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Polychlorinated biphenyls (PCBs), totalcode 2383 | No | Resolved |
| 2005-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toxaphenecode 2020 | 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.
St Charles Mesa Wd: frequently asked questions
Who runs St Charles Mesa Wd?
St Charles Mesa Wd (PWSID CO0151750) is a community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does St Charles Mesa Wd serve?
St Charles Mesa Wd reports serving 9,690 people through 4,364 service connections in Pueblo County, Colorado.
Where does St Charles Mesa Wd get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does St Charles Mesa Wd have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in April 2009. 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 St Charles Mesa Wd'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, one is health-based, and the most recent began in April 2009. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find St Charles Mesa Wd's water quality report?
As a community water system, St Charles Mesa Wd must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Pueblo County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pueblo Board of Ww | Pueblo | 114,070 | Community | Surface water |
| Pueblo West Md | Pueblo | 30,000 | Community | Surface water |
| Chemical Materials Activity West | Pueblo | 3,000 | Non-transient non-community | Groundwater |
| Colorado City Md | Pueblo | 2,755 | Community | Surface water |
| Avondale Wsd | Pueblo | 1,615 | Community | Groundwater |
| Circle K No 4062 | Pueblo | 756 | Transient non-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, “St Charles Mesa Wd, PWSID CO0151750, Colorado”, https://aquacensus.com/water-systems/colorado/st-charles-mesa-wd-co0151750 (data as of October 1, 2026).