Stormwater runoff from industrial activity means the discharge from any conveyance that is used for collecting and conveying stormwater and which is directly related to manufacturing, processing, or raw materials storage areas at an industrial facility. The term does not include discharges from facilities or activities excluded or exempted from the Kansas Water Pollution Control program requirements. 

The categories of industrial activity subject to coverage under the Kansas Department of Environment (KDHE) Industrial Stormwater General Permit includes, but is not limited to stormwater discharges from industrial plant yards; immediate access roads and rail lines used or traveled by carriers of raw materials, manufactured products, waste material, or by-products used or created by the facility; material handling sites; refuse sites; sites used for the application or disposal of process wastewaters (as defined at 40 CFR 401); sites used for the storage and maintenance of material handling equipment; sites used for residual treatment, storage, or disposal; shipping and receiving areas; manufacturing buildings; storage areas, including tank farms for raw materials; and intermediate and finished products; and areas where industrial activity has taken place in the past and significant materials remain and are exposed to stormwater. 

Material handling activities include storage, loading and unloading, transportation or conveyance of any raw material, intermediate product, final product, by-product, or waste product. Industrial activity excludes areas located on the plant site that are separate from the plant's industrial activities. Areas such as office buildings and accompanying parking lots are excluded if the drainage from the excluded area is not mixed with stormwater drainage from areas with industrial activities subject to permit coverage. 

Industrial facilities including industrial facilities which are federally, state or municipally owned or operated and meet the description of the facilities listed in 40 CFR 122.26(b )(i)-(ix) and (xi).