RCW 90.48.200: Waste disposal permits required of counties, municipalities and public corporations—Nonaction upon application—Temporary permit—Duration.

In the event of failure of the department to act upon an application within sixty days after it has been filed the applicant shall be deemed to have received a temporary permit. Said permit shall authorize the applicant to discharge wastes into waters of the state as requested in its application only until such time as the department shall have taken action upon said application.