WAC 173-220-170
WAC 173-220-170. Relationship with non-NPDES permits
Discharges of pollutants or other wastes that require permits from the department under RCW 90.48.160 , which are not satisfied through permits issued under this chapter, shall be subject to the permit requirements of RCW 90.48.160 , et seq. Except where permits under RCW 90.48.160 are issued by a municipal corporation pursuant to chapter 173-208 WAC, permit requirements under this chapter and permit requirements under RCW 90.48.160 shall be contained in a single permit document.