Regulated activities shall be conducted only after Mason County public works approves a stormwater site plan, which includes one or more of the following as required by this chapter:
(1)
Small parcel erosion and sediment control (ESC) plan;
(2)
Residential site improvement plan accompanied by a written description of the proposed work and improvements;
(3)
Large parcel erosion and sediment control (ESC) plan;
(4)
Permanent stormwater quality control (PSQC) plan accompanied by a written description of the proposed work and improvements.
Note: Small activities creating less than two thousand square feet of new imperviousness will be required to submit item "1." Residential site development creating more than two thousand square feet of new impervious surfaces will be required to submit items "1 and 2." Nonresidential activities creating more than five thousand square feet of new imperviousness will be required to submit items "3 and 4," prepared by a licensed civil engineer. Residential or nonresidential site development that disturbs an acre or more of land will be required to submit items "3 and 4" prepared by a licensed civil engineer.
(Ord. 81-08 (part), 2008).