(a) At the EA's discretion, storage times for sorted and processed materials may be extended to the time specified in a land use entitlement for the site that has an express time limit for the storage of materials.

(b) Storage times at operations and facilities may be extended for a specified period, if the operator submits to the EA a storage plan as described herein and if the EA finds, on the basis of substantial evidence, that the additional time does not increase the potential harm to public health, safety and the environment. The EA may consult with other public agencies in making this determination. The extended storage term, any applicable conditions the EA imposes and the EA's findings shall be in writing. The operator must file amendments as necessary to maintain the accuracy of the storage plan. Failure to submit timely amendments may be cause for revocation of the storage limit extension. The storage plan must contain the following:

(c) Storage times at operations, facilities and recycling centers may be extended if an operator provides proof of financial assurance pursuant to Title 27, Chapter 6, Subchapter 1, section 22240 et seq. satisfactory to the board for cleanup of any operation, facility or recycling center. The amount of financial assurance shall be based on the cost estimate, in current dollars, for removal and disposal of the debris by a third party as directed by the EA. A Clean Up Plan including a cost estimate shall be prepared by the operator using form CIWMB 643 and approved by the EA. Notwithstanding, an operator is not required to provide proof of financial assurance if the third party cost to clean up the site, as identified by the operator and approved by the EA, is less than $5,000.