Section R. 285.641.13 - Storage of bulk dry fertilizerRule 13.
(1) A storage facility shall store and handle dry fertilizer materials in a manner to prevent contamination by minimizing losses to the air, surface water, groundwater, or subsoil.(2) A storage facility shall store nonfluid fertilizers inside a sound structure or device that has a cover or roof top, sidewalls, and a base sufficient to prevent contact with precipitation and surface waters. If bulk dry fertilizer is stored outdoors, the storage facility shall place the dry fertilizer on a ground cover that is sufficiently impermeable to prevent seepage or runoff and shall completely cover the dry fertilizer with a tarpaulin or other suitable covering to prevent contact with precipitation and surface water.(3) A storage facility shall conduct all loading, unloading, mixing, and handling of dry fertilizer at the storage facility on a paved impermeable surface of a size and design that will contain the fertilizer and allow for the collection of spilled material to be recycled, applied at agronomic rates, or disposed of in a manner approved by the department.(4) A storage facility shall use containment devices, structures, or techniques to minimize the emission of dust and vapors beyond the facility boundaries.(5) A facility that is placed in service after the effective date of this rule shall immediately comply with this rule. A facility that is in service before the effective date of this rule has 2 years to comply with this rule.Mich. Admin. Code R. 285.641.13