MI HB5365

Requires persons storing petroleum coke (pet coke) for transport or shipment to obtain a storm water discharge permit.

Mandates pet coke storage in completely enclosed, roofed and walled structures with controlled entry/exit points using overlapping flaps, sliding doors, or department-approved devices.

Requires all storage areas to remain free of accumulation except for moist material, dry material not exceeding 3 inches, or completely covered material.

Establishes a 180-day compliance deadline for existing operations, with the department issuing compliance orders within 45 days that include interim steps and pile size monitoring requirements.

Defines pet coke as a solid carbonaceous residue from petroleum refining coker operations, with specific definitions for material composition (minimum 50% pet coke by weight), moisture content (8.3% minimum for moist material), and pile dimensions (3 feet height or 150 square feet surface area).