Public water system · MN1860026
ActiveOtsego
At a glance
Otsego (PWSID MN1860026) is an active community water system in Wright County, Minnesota. It reports serving 19,000 people through 5,636 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in January 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
19,000
Service connections
5,636
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Otsego compare with other water systems in Wright County?
By EPA's size categories, Otsego is a large system (10,001 to 100,000 people). Wright County has 126 active public water systems, and Otsego is the 2nd-largest of them by population served. Its population served is about 19 times the county average of 1,027 people per system, and accounts for 15% of the 129,374 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 Otsego is about 183% 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. 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 Otsego?
EPA lists Otsego 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. 26 of the 126 active systems in Wright County (21%) are also owned by a local government.
Does Otsego have drinking water violations?
EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in January 2018. The violations listed here began between January 2011 and January 2018. By type: 3 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Combined Radium (-226 and -228) (2 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2018-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
| 2014-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2011-01-26 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
All 4 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.
Otsego: frequently asked questions
Who runs Otsego?
Otsego (PWSID MN1860026) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Otsego serve?
Otsego reports serving 19,000 people through 5,636 service connections in Wright County, Minnesota.
Where does Otsego 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 Otsego have any drinking water violations?
EPA's records list 4 violations for this system; 3 are health-based, and the most recent began in January 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 Otsego'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 4 violations for this system; 3 are health-based, and the most recent began in January 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Otsego's water quality report?
As a community water system, Otsego 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 Wright County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Joint Powers Water Board | Wright | 30,922 | Community | Groundwater |
| Buffalo | Wright | 16,711 | Community | Groundwater |
| Monticello | Wright | 15,087 | Community | Groundwater |
| Delano Municipal Utilities | Wright | 6,564 | Community | Groundwater |
| Rockford | Wright | 4,863 | Community | Groundwater |
| Montrose | Wright | 3,899 | 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, “Otsego, PWSID MN1860026, Minnesota”, https://aquacensus.com/water-systems/minnesota/otsego-mn1860026 (data as of October 1, 2026).