Environmental Rules in Marathon County, WI (2026)
2 county-level rules, plus city-specific rules for 2 cities in Marathon County, Wisconsin.
Verified from official government sources
Stormwater Management
Marathon County requires every major subdivision built on unincorporated land to have its stormwater management plan approved by the DNR and county or town engineer, using facilities like retention ponds or infiltration trenches, before final plat approval.
Marathon County Subdivision Stormwater Rules
Some RestrictionsMarathon County Code § 18.008.03
18.008.03.Stormwater management requirements.A.The design and construction of stormwater management facilities shall require the review and approval of the DNR, Commissioner and town engineer if applicable, in accordance with all other applicable laws and regulations.1.Allowable types of stormwater management facilities include but are not limited to:a.Retention ponds.b.Detention basins.c.Under...
Erosion Control
Marathon County requires developers disturbing more than one acre during a land division to prepare a DNR-approved soil erosion control and stormwater management plan before starting earthwork.
Marathon County Erosion & Stormwater Plan
Some RestrictionsMarathon County Code § 18.006.07(C)
When the developer intends to remove or disturb the natural topsoil, trees, and other vegetation, and/or add impervious surfaces, or where the developer intends to change the surface contour of a proposed subdivision, the developer shall prepare a soil erosion control and stormwater management plan and have such plan approved by the DNR prior to the commencement of earthwork. The soil erosion c...
Environmental Rules by City in Marathon County
2 cities in Marathon County have their own environmental rules rules. Each link goes to that city's dedicated page with code citations.
All Marathon County ordinances
See every category we cover for Marathon County: parking, noise, fences, fires, animals, pools, and more.
Marathon County Ordinance Hub →