Public water system · MN5100121
ActiveLake Minnewashta Regional Park
At a glance
Lake Minnewashta Regional Park (PWSID MN5100121) is an active transient non-community water system in Carver County, Minnesota. It reports serving 25 people through 8 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 6 violations for this system; all are health-based, and the most recent began in May 2007.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
8
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Lake Minnewashta Regional Park compare with other water systems in Carver County?
By EPA's size categories, Lake Minnewashta Regional Park is a very small system (500 people or fewer). Carver County has 66 active public water systems. Its population served is well below the county average of 1,585 people per system, and accounts for less than 0.1% 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 transient non-community water system reports serving 144 people, so Lake Minnewashta Regional Park is well below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Minnesota has 5,008 active transient non-community water systems, 77% 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 Lake Minnewashta Regional Park?
EPA lists Lake Minnewashta Regional 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. 22 of the 66 active systems in Carver County (33%) are also owned by a local government.
Does Lake Minnewashta Regional Park have drinking water violations?
EPA's records list 6 violations for this system; all are health-based, and the most recent began in May 2007. The violations listed here began between January 1993 and May 2007. By type: 6 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (6 of them). EPA lists 6 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 |
|---|---|---|---|---|
| 2007-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2005-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1999-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 6 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.
Lake Minnewashta Regional Park: frequently asked questions
Who runs Lake Minnewashta Regional Park?
Lake Minnewashta Regional Park (PWSID MN5100121) is a transient non-community water system owned by a local government. It is regulated by the MN state drinking water program.
How many people does Lake Minnewashta Regional Park serve?
Lake Minnewashta Regional Park reports serving 25 people through 8 service connections in Carver County, Minnesota.
Where does Lake Minnewashta Regional 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 Lake Minnewashta Regional Park have any drinking water violations?
EPA's records list 6 violations for this system; all are health-based, and the most recent began in May 2007. 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 Lake Minnewashta Regional 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 6 violations for this system; all are health-based, and the most recent began in May 2007. For current results, consult EPA ECHO, or the MN state drinking water program.
Where can I find Lake Minnewashta Regional Park's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Lake Minnewashta Regional Park is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Carver County
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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, “Lake Minnewashta Regional Park, PWSID MN5100121, Minnesota”, https://aquacensus.com/water-systems/minnesota/lake-minnewashta-regional-park-mn5100121 (data as of October 1, 2026).