Mich. Admin. Code R. 285.640.10 - Operational area containment of liquid pesticides

Rule 10.

(1) Operational areas shall be curbed or sloped to allow the containment of accumulated liquids. The area shall be constructed of reinforced concrete or other suitable material approved by the department, to provide an impermeable surface. Operational area activities at the pesticide storage facility shall be carried out within this area.

(2) The operational area containment shall form or drain into a watertight catch basin or sump. The sump shall meet the requirements of R 285.640.8(8).

(3) The operational area containment shall be constructed and reinforced to handle at least the foreseeable maximum gross load, including all of the following:

(a) Product.

(b) Equipment that utilizes the operational area.

(c) Mobile containers.

(d) Motor vehicles.

(4) Size and capacity requirements for operational area containments are as follows:

(a) The operational area containment shall have a minimum width of 10 feet and a minimum length of 20 feet.

(b) Except as provided in subdivision (c) of this subrule, curbed surfaces and catch basins shall be of adequate size and design to contain a minimum of 1,500 gallons of discharged liquid.

(c) If there are no storage containers that are used at the storage facility which have a capacity of more than 1,000 gallons, and if there are no mobile containers that are used to transfer liquid pesticide to and from storage containers which have a capacity of more than 1,000 gallons, the curbed surface and catch basin shall be of adequate size and design to contain 110% of the volume of whichever is greater, the largest storage container or the largest mobile container that is used.

(d) The operational area containment capacity may include an aboveground container for temporary storage if a pump is installed which automatically transfers the contents of the sump into the container and the container is located within secondary containment.

(5) Any filling or unloading point of a mobile container shall be positioned over the paved area during loading or unloading to assure retention of any discharge.

(6) The secondary containment area that is described in R 285.640.8 can, under the following conditions, be jointly utilized as an operational containment area instead of a separate operational containment area:

(a) Secondary containment areas are not lined with synthetic liners.

(b) Sufficient capacity requirements and the provisions of R 285.640.8 and this rule are complied with.

(7) Storage containers and appurtenances, including pipes, shall be protected against reasonably foreseeable risks of damage by trucks and other moving vehicles that are engaged in the loading or unloading of bulk pesticide.

(8) Loading and unloading operations shall be supervised at all times by an attendant who is familiar with the operation of the mechanical appurtenances in use at the facility and who is familiar with the procedures that are used for the control and recovery of discharges.

(9) This rule does not apply to mobile containers that are used to nurse field operations when at a field unloading site.

(10) Facilities that are placed in service after the effective date of these rules shall immediately comply with this rule. Facilities that are in service before the effective date of this rule shall have 2 years to comply with this rule.

Notes

Mich. Admin. Code R. 285.640.10

1992 AACS