Section 33.40. Secondary containment required.  


Latest version.
  • (1) General. Except as provided in sub. (2) , all of the following shall be located within a secondary containment structure that complies with s. ATCP 33.42 :
    (a) Storage containers.
    (b) Storage container shut-off valves under s. ATCP 33.20 (2) (a) .
    (c) Liquid level gauging devices under s. ATCP 33.20 (3) .
    (2) Exempt storage containers. No secondary containment is required under sub. (1) for any of the following:
    (a) An empty storage container that has been thoroughly cleaned and rinsed. A pesticide container is thoroughly cleaned and rinsed if all exterior surfaces of the container are free of pesticide residues and all inside surfaces are triple rinsed.
    (b) A mobile container kept at a storage facility for fewer than 7 days if all of the following apply:
    1. Loading and unloading of the mobile container complies with ss. ATCP 33.30 and 33.32 .
    2. The storage facility has at least one storage container that has unused capacity greater than the total capacity of the mobile container.
    (c) A mini-bulk container if the exterior surfaces of the mini-bulk container are clean and one of the following applies:
    1. The mini-bulk container is triple rinsed.
    2. The mini-bulk container is equipped with a device to prevent the container from being triple rinsed.
    (d) An abandoned storage container if the operator complies with s. ATCP 33.20 (14) .