Public water system · MN1210010
ActiveCarlos
At a glance
Carlos (PWSID MN1210010) is an active community water system in Douglas County, Minnesota. It reports serving 492 people through 228 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
492
Service connections
228
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Carlos compare with other water systems in Douglas County?
By EPA's size categories, Carlos is a very small system (500 people or fewer). Douglas County has 151 active public water systems. Its population served is about 141% above the county average of 204 people per system, and accounts for 1.6% of the 30,846 people reported by systems filed under the county. Across Minnesota, the 6,465 active systems average 820 people each. Nationally, the average active community water system reports serving 6,703 people, so Carlos is well below 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. Minnesota has 987 active community water systems, 15% of the state's 6,465 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,261 Minnesota systems (97%) list groundwater as their primary source.
Who owns and regulates Carlos?
EPA lists Carlos as owned by a local government. The MN 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 151 active systems in Douglas County (9.3%) are also owned by a local government.
Does Carlos have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in January 2021. By type: 1 monitoring and reporting. The contaminant or rule involved is Lead and Copper 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 |
|---|---|---|---|---|
| 2021-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | 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.
Carlos: frequently asked questions
Who runs Carlos?
Carlos (PWSID MN1210010) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Carlos serve?
Carlos reports serving 492 people through 228 service connections in Douglas County, Minnesota.
Where does Carlos 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 Carlos 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 January 2021. 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 Carlos' 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 January 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Carlos' water quality report?
As a community water system, Carlos 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 Douglas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Alexandria | Douglas | 15,000 | Community | Groundwater |
| Osakis | Douglas | 1,780 | Community | Groundwater |
| Lake Latoka Rest Area Mndot | Douglas | 1,001 | Transient non-community | Groundwater |
| Brothers Market | Douglas | 900 | Transient non-community | Groundwater |
| Evansville | Douglas | 603 | Community | Groundwater |
| Brandon | Douglas | 501 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Carlos, PWSID MN1210010, Minnesota”, https://aquacensus.com/water-systems/minnesota/carlos-mn1210010 (data as of October 1, 2026).