Wis. Admin. Code NR § 520.11
Whenever on the basis of any reliable information, and after opportunity for a hearing, the department determines that an owner or operator of a solid waste land disposal facility is in violation of any of the requirements for closure, long-term care or remedial action specified in a department approval, the department and its designees shall have the right to enter upon the facility and carry out the closure, long-term care or remedial action requirements. The department may use part or all of the money deposited with it, or the money deposited in escrow or trust accounts, or performance or forfeiture bonds, or letters of credit, insurance, or funds accumulated under other approved methods to carry out the closure, long-term care or remedial action requirements.
Wis. Admin. Code Department of Natural Resources § NR 520.11