Public water system · MN1500006
ActiveDexter
At a glance
Dexter (PWSID MN1500006) is an active community water system in Mower County, Minnesota. It reports serving 338 people through 150 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2006.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
338
Service connections
150
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Dexter compare with other water systems in Mower County?
By EPA's size categories, Dexter is a very small system (500 people or fewer). Mower County has 54 active public water systems. Its population served is about half of the county average of 679 people per system, and accounts for 0.9% of the 36,656 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 Dexter 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 Dexter?
EPA lists Dexter 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. 15 of the 54 active systems in Mower County (28%) are also owned by a local government.
Does Dexter have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2006. The violations listed here began between January 1994 and July 2006. By type: 6 monitoring and reporting, 1 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Chlorine (2 of them). EPA lists 6 as resolved and 2 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2006-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2006-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2006-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2005-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2005-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2003-01-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2003-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Archived |
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
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.
Dexter: frequently asked questions
Who runs Dexter?
Dexter (PWSID MN1500006) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Dexter serve?
Dexter reports serving 338 people through 150 service connections in Mower County, Minnesota.
Where does Dexter 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 Dexter have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in July 2006. 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 Dexter'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; 1 is health-based, and the most recent began in July 2006. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Dexter's water quality report?
As a community water system, Dexter 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 Mower County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Austin Utilities | Mower | 26,174 | Community | Groundwater |
| Grand Meadow | Mower | 1,154 | Community | Groundwater |
| High Forest Rest Area Mndot | Mower | 1,001 | Transient non-community | Groundwater |
| Leroy | Mower | 959 | Community | Groundwater |
| Beaver Trails Jellystone | Mower | 750 | Transient non-community | Groundwater |
| Brownsdale | Mower | 682 | 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, “Dexter, PWSID MN1500006, Minnesota”, https://aquacensus.com/water-systems/minnesota/dexter-mn1500006 (data as of October 1, 2026).