Environmental Rules in Wauwatosa, WI (2026)
1 verified environmental rules for Wauwatosa, Wisconsin, sourced directly from the municipal code and official government pages.
Verified from official government sources
Flood Zones
Wauwatosa participates in the National Flood Insurance Program (NFIP) and enforces a Floodplain Ordinance that meets FEMA and Wisconsin DNR minimum standards under Wis. Stat. Sec. 87.30 and Wis. Admin. Code Chapter NR 116. The principal regulated waterways are the Menomonee River and Honey Creek, an 8.7-mile tributary that flows through Greenfield, Milwaukee, West Allis, and Wauwatosa. The currently effective Milwaukee County FEMA Flood Insurance Study and FIRM panels became effective September 26, 2008. FEMA issued a Conditional Letter of Map Revision (CLOMR) in April 2022 reflecting MMSD's County Grounds detention basins, the Hart Park floodwall, and other improvements. Any development inside the mapped 1% annual chance (100-year) floodplain requires a Floodplain Development Permit before construction.
Flood Zone Regulations (Wauwatosa, WI)
Heavy RestrictionsWis. Stat. § 87.30 (Floodplain Zoning)
87.30 87.30 Floodplain zoning. 87.30(1) (1) State powers. 87.30(1)(a) (a) If any county, city or village does not adopt a reasonable and effective floodplain zoning ordinance within one year after hydraulic and engineering data adequate to formulate the ordinance becomes available, the department shall, upon petition of an interested state agency or a municipality or upon its own motion as soon...
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