Public water system · MN1540008
ActiveTwin Valley
At a glance
Twin Valley (PWSID MN1540008) is an active community water system in Norman County, Minnesota. It reports serving 707 people through 382 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 1994.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
707
Service connections
382
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Twin Valley compare with other water systems in Norman County?
By EPA's size categories, Twin Valley is a small system (501 to 3,300 people). Norman County has 21 active public water systems, and Twin Valley is the 2nd-largest of them by population served. Its population served is about 3.2 times the county average of 220 people per system, and accounts for 15% of the 4,628 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 Twin Valley 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 Twin Valley?
EPA lists Twin Valley 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. 9 of the 21 active systems in Norman County (43%) are also owned by a local government.
Does Twin Valley 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 1994. By type: 1 monitoring and reporting. The contaminant or rule involved is Nitrate. EPA lists 1 as archived. 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 |
|---|---|---|---|---|
| 1994-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
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.
Twin Valley: frequently asked questions
Who runs Twin Valley?
Twin Valley (PWSID MN1540008) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Twin Valley serve?
Twin Valley reports serving 707 people through 382 service connections in Norman County, Minnesota.
Where does Twin Valley 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 Twin Valley 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 1994. 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 Twin Valley'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 one violation for this system; it is not health-based, and the most recent began in January 1994. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Twin Valley's water quality report?
As a community water system, Twin Valley 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 Norman 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, “Twin Valley, PWSID MN1540008, Minnesota”, https://aquacensus.com/water-systems/minnesota/twin-valley-mn1540008 (data as of October 1, 2026).