RCW 70A.10.150: Records and reports—Open to public examination.

(1) Every licensee shall keep and maintain a record of all operations conducted by him or her pursuant to his or her license and each permit, showing the method employed, the type of equipment used, materials and amounts thereof used, the times and places of operation of the equipment, the name and post office address of each individual participating or assisting in the operation other than the licensee, and such other general information as may be required by the department and shall report the same to the department at the time and in the manner required.

(2) The department shall require written reports in such manner as it provides but not inconsistent with the provisions of this chapter, covering each operation for which a permit is issued. Further, the department shall require written reports from such organizations as are exempted from license, permit, and liability requirements as provided in RCW 70A.10.070.

(3) The reports and records in the custody of the department shall be open for public examination.