3.1. Stormwater Management Services Scope of Work Greenville County SC is in the 4th year of the third cycle of its National Pollution Discharge Elimination System (NPDES) Phase I storm water municipal separate storm sewer system (MS4) permit. The first permit cycle focused on collection of data relevant to land use, storm water infrastructure, and water quality throughout the County, as well as establishing programs for elements of the permit such as sediment and erosion control, illicit discharge detention, industrial activity compliance, and public education. The permit effective July 1, 2007, focused on the continued implementation of procedures and the introduction of capital projects to improve the quality of the following waters in Greenville County. The permit effective July 1st, 2021 added requirement to address TMDL & impaired water bodies. Currently the permit terms are as outlined below, and the vendor is performing the duties and responsibilities outlined in this request for proposal. The annual work plan will outline the scope of services to be performed during this timeframe, the estimated man hours, cost and timeline for completion of each task. 3.2. Implementation of the following items will be required by the permit. Vendor must have experience and knowledge regarding these program elements. A. Structural Controls and Storm Water Collection System Operation: The operation of the storm sewer collection system, storm water conveyance system, outfalls, structural controls, Best Management Practices (BMPs) for quantity and quality control, etc. shall be maintained in a manner to reduce the discharge of pollutants to the Maximum Extent Practicable (MEP). B. Areas of New Development and Significant Redevelopment: A comprehensive master planning process must be in place to achieve the "MEP" standards to reduce the discharge of pollutants, after construction is completed, from MS4s which receive discharges from areas of new development and significant redevelopment. C. Existing Roadway: All roadways shall be maintained and operated in a manner to reduce the discharge of pollutants to the "MEP". This includes paved and unpaved roadways. D. Flood Control Project: Storm water problems related to flooding in selected watersheds will be analyzed and recommendation of potential solutions to the problems identified. The water quality of state waters must be assessed and evaluated for all flood improvement projects and shall include a water quality planning process. E. Municipal Waste Treatment, Storage, or Disposal Facilities: Municipal Water Treatment, Storage, or Disposal Facilities not covered by a NPDES Storm Water Permit must monitor sources of pollutants and reduce pollutants in storm water discharges to the "MEP".
