Environmental Rules in Carver County, MN (2026)
5 rules for unincorporated Carver County, Minnesota.
Verified from official government sources
Stormwater Management
Carver County requires stormwater management plans for new development to control both the rate and quality of runoff before it reaches lakes, streams, and wetlands. Under County Code § 153.56, projects must remove 90% of total phosphorus and 90% of total suspended solids generated on-site, hold peak runoff rates at pre-development levels, and route treatment through the county's Water Resource Management program.
Carver County's Stormwater Volume and Water Quality Rules
Some RestrictionsCarver County Code of Ordinances § 153.56
(E) Rate control standard. (1) Peak rates. The peak rates shall not increase from existing conditions for the two-, ten-, 100-year storm events, and the 100-year, ten-day snowmelt event. Peak rates shall be calculated using Atlas 14 precipitation depths and storm distributions. (2) Conveyance system. At a minimum, the storm sewer conveyance system shall be designed for a ten-year, 24-hour storm...
Erosion Control
Carver County requires an erosion control permit for any construction activity of one acre or more, or smaller projects within a sensitive area, before ground is disturbed anywhere in the unincorporated Carver County Water Management Organization (CCWMO) area. Control measures must go in before work starts and must stop sediment from reaching state waters or neighboring land.
Carver County Erosion & Sediment Control
Some RestrictionsCarver County Code of Ordinances § 153.55
(A) Carver County adopts and incorporates by reference the erosion and sediment control design and operational standards as set forth in Minnesota Permit R100001 (the general permit authorization to discharge storm water associated with construction activity under the National Pollutant Discharge Elimination System), as amended from time to time. (B) Land altering activity shall not result ...
Flood Zones
Carver County overlays Floodway, Flood Fringe, and General Floodplain Districts on mapped land under § 152.144-152.149. In the Flood Fringe District, structures must be elevated on fill to the regulatory flood protection elevation, and fill placement on any parcel is capped at 1,000 cubic yards absent a conditional use permit.
Carver County Floodplain District Rules
Significant RestrictionsCarver County Code of Ordinances § 152.148(B)
(B) Standards for flood fringe permitted uses. (1) All structures, including accessory structures, must be elevated on fill so that the lowest floor, as defined, is at or above the regulatory flood protection elevation. The finished fill elevation for structures shall be no lower than one foot below the regulatory flood protection elevation and the fill shall extend at that elevation at least 1...
Boat Dock Permits
Carver County's shoreland code does not regulate permanent or seasonal docks or private boat ramps. Under § 152.114(C), the Minnesota DNR handles dock and boat ramp permitting on the county's lakes and rivers, not the county Planning and Zoning Department.
Carver County Boat Dock Rules
Few RestrictionsCarver County Code of Ordinances § 152.114(C)
(C) Carver County does not regulate permanent or seasonal docks or private boat ramps. The Minnesota DNR regulates and issues permits for these structures in accordance with Minn. Rules Parts 6115.0150 through 6115.0520, as they may be amended from time to time. For further information contact the Division of Waters at the Minnesota DNR.
Flood Elevation Requirements
In the Flood Fringe District, Carver County requires the lowest floor of every structure, including accessory structures, to sit at or above the Regulatory Flood Protection Elevation, which is set at least one foot above the regional (base) flood elevation. Fill supporting a structure must extend at least 15 feet beyond the structure at that elevation.
Carver County Flood Elevation & Freeboard Rule
Significant RestrictionsCarver County Code of Ordinances § 152.010; § 152.148(B)(1)
REGULATORY FLOOD PROTECTION ELEVATION (RFPE). An elevation not less than one foot above the elevation of the regional flood plus any increases in flood elevation caused by encroachments on a floodplain that results from the designation of a floodway. It is this elevation which is regulated by this chapter and required to be elevated or flood proofed. ... All structures, including accessory stru...
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