Public water system · MN1100006
ActiveMayer
At a glance
Mayer (PWSID MN1100006) is an active community water system in Carver County, Minnesota. It reports serving 1,900 people through 908 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,900
Service connections
908
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mayer compare with other water systems in Carver County?
By EPA's size categories, Mayer is a small system (501 to 3,300 people). Carver County has 66 active public water systems. Its population served is about 20% above the county average of 1,585 people per system, and accounts for 1.8% of the 104,639 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 Mayer 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 Mayer?
EPA lists Mayer 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. 22 of the 66 active systems in Carver County (33%) are also owned by a local government.
Does Mayer have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2023. The violations listed here began between October 1993 and October 2023. By type: 2 monitoring and reporting. The contaminants or rules involved are Combined Radium (-226 and -228) and Total coliform bacteria (TCR). EPA lists 1 as resolved and 1 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 |
|---|---|---|---|---|
| 2023-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 1993-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 2 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.
Mayer: frequently asked questions
Who runs Mayer?
Mayer (PWSID MN1100006) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Mayer serve?
Mayer reports serving 1,900 people through 908 service connections in Carver County, Minnesota.
Where does Mayer 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 Mayer have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in October 2023. 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 Mayer'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 2 violations for this system; none is health-based, and the most recent began in October 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Mayer's water quality report?
As a community water system, Mayer 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 Carver County
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, “Mayer, PWSID MN1100006, Minnesota”, https://aquacensus.com/water-systems/minnesota/mayer-mn1100006 (data as of October 1, 2026).