MI HB6317

Redefines water management district processes to focus on "water management programs" for stormwater management activities rather than traditional flood control/drainage projects, including stormwater review, ordinance drafting, public education, and infrastructure maintenance.

Establishes a new water management board structure: for single-county districts, the board includes the drain commissioner and municipal representatives; for multi-county districts, the board includes the director of agriculture and rural development, drain commissioners, and appointed municipal officials.

Creates a water management commission for multi-county districts composed of water management board members plus county board chairs and finance committee chairs to oversee proceedings.

Simplifies petition filing requirements by allowing petitions from 2 or more affected public corporations, 50 property owners, or 10% of property owners (if fewer than 500 total), with separate processes for single-county and multi-county districts.

Modifies hearing and notification procedures: requires newspaper publication and mail notices to affected property owners and officials at least 10-20 days before hearings; establishes that water management boards determine petition sufficiency and necessity, with multi-county matters reviewed by water management commissions.