Wash. Rev. Code § 79.140.160
Each application made pursuant to RCW 79.140.150 shall set forth the estimated quantity and kind of materials desired to be removed and shall be accompanied by a map or plat showing the area from which the applicant wishes to remove the materials. The department may in its discretion include in any lease or contract entered into pursuant to RCW 79.140.150 through 79.140.170, terms and conditions deemed necessary by the department to protect the interests of the state. In each lease or contract the department shall provide for a right of forfeiture by the state, upon a failure to operate under the lease or contract or pay royalties or rent for periods therein stipulated, and the department shall require a bond with a surety company authorized to transact a surety business in this state, as surety to secure the performance of the terms and conditions of the contract or lease including the payment of royalties. The right of forfeiture shall be exercised by entry of a declaration of forfeiture in the records of the department. The amount of rock, gravel, sand, or silt taken under the contract or lease shall be reported monthly by the purchaser to the department and payment made on the basis of the royalty provided in the lease or contract.
RCW 79.140.160