(1) Unless physical constraints prevent construction or unless adjoining properties are outside the service basin, all public improvements to unimproved public ways not already containing a wastewater sewer system must include a wastewater sewer system constructed in accordance with section 7.085 of this code.

(2) All public improvements to public ways must include stormwater management facilities that are constructed in accordance with the Design Standards for Stormwater Facilities in Public Improvement Projects. Capacity of the stormwater management facilities shall be sized in accordance with the flood control design storm. The pollution reduction facilities must treat all stormwater runoff from all new or replaced impervious surface exceeding 1000 square feet, or an equivalent on-site area, that will result from the water quality design storm.