The overall goal of this project was to design an Industrial Stormwater Pollution Prevention Plan (SWPPP) for the Wenninghoff Borrow Pit that would comply with the regulations and guidelines set forth by the State of Nebraska. Industrial facilities vary greatly in the activities that take place, the materials used and the potential pollutant sources; therefore, a Standard Industrial Classification (SIC) code is assigned to each industrial facility. SIC codes help to determine what specific requirements for water sampling, stormwater control implementation and inspections are necessary for each facility. The Wenninghoff Borrow Pit is responsible for implementing and maintaining stormwater pollution prevention controls and good housekeeping measures to prevent stormwater pollution from activities on-site.
The State of Nebraska authorizes the discharge of stormwater from industrial activities under the National Pollutant Discharge Elimination System (NPDES) General Permit. E&A developed a SWPPP for the Wenninghoff Borrow Pit and applied for an industrial stormwater permit with the State of Nebraska. The Wenninghoff Borrow Pit is a 55-acre dirt borrow pit and is considered a Sector J – Mineral Mining and Dressing facility under the NPDES General Permit. The SWPPP was designed primarily to prevent stormwater pollution from sediment through the use of sediment traps, farm terraces, silt fence, stabilized construction entrances and temporary stabilization.
Wenninghoff Seeding, Inc.
State of Nebraska