Public water system · MN1270050
ActiveSaint Louis Park
At a glance
Saint Louis Park (PWSID MN1270050) is an active community water system in Hennepin County, Minnesota. It reports serving 50,010 people through 13,775 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 3 violations for this system; all are health-based, and the most recent began in May 2008.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
50,010
Service connections
13,775
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Saint Louis Park compare with other water systems in Hennepin County?
By EPA's size categories, Saint Louis Park is a large system (10,001 to 100,000 people). Hennepin County has 198 active public water systems. Its population served is about 7.8 times the county average of 6,444 people per system, and accounts for 3.9% of the 1,275,854 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 Saint Louis Park is about 7.5 times 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 Saint Louis Park?
EPA lists Saint Louis Park 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. 86 of the 198 active systems in Hennepin County (43%) are also owned by a local government.
Does Saint Louis Park have drinking water violations?
EPA's records list 3 violations for this system; all are health-based, and the most recent began in May 2008. The violations listed here began between July 2003 and May 2008. By type: 3 contaminant level above the legal limit. The contaminant or rule involved most often is Gross alpha (excluding radon and uranium) (2 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2008-05-28 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
| 2008-03-17 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2003-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Resolved |
All 3 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.
Saint Louis Park: frequently asked questions
Who runs Saint Louis Park?
Saint Louis Park (PWSID MN1270050) is a community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Saint Louis Park serve?
Saint Louis Park reports serving 50,010 people through 13,775 service connections in Hennepin County, Minnesota.
Where does Saint Louis Park 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 Saint Louis Park have any drinking water violations?
EPA's records list 3 violations for this system; all are health-based, and the most recent began in May 2008. 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 Saint Louis Park'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 3 violations for this system; all are health-based, and the most recent began in May 2008. For current results, consult the system's annual water quality report, EPA ECHO, or the MN state drinking water program.
Where can I find Saint Louis Park's water quality report?
As a community water system, Saint Louis Park 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 Hennepin County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Minneapolis | Hennepin | 425,300 | Community | Surface water |
| Bloomington | Hennepin | 91,300 | Community | Purchased surface water |
| Brooklyn Park | Hennepin | 89,995 | Community | Groundwater |
| Maple Grove | Hennepin | 82,000 | Community | Groundwater |
| Plymouth | Hennepin | 76,546 | Community | Groundwater |
| Eden Prairie | Hennepin | 63,726 | 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, “Saint Louis Park, PWSID MN1270050, Minnesota”, https://aquacensus.com/water-systems/minnesota/saint-louis-park-mn1270050 (data as of October 1, 2026).