into Sanitary Sewer. No new construction shall be built so as to discharge or cause to be discharged any stormwater, surface water, ground water, roof runoff, subsurface drainage, cooling water, or unpolluted industrial process water to any sewer which is built solely for sanitary sewage. In combined sewer areas all remodeling or reconstruction that changes the use of the property or building or increases the impervious area may be required to install a stormwater system to mitigate the impact of stormwater on the City sanitary sewer system. All new construction, substantial remodel, or reconstruction shall be required to provide stormwater control in accordance with Chapters 15.13 and 15.16 SMC. (Ord. 1602, 1987; Ord. 1730, 1993; Ord. 2173, 2009)