Districtwide NPDES Permit Compliance Services

E Sciences is under contract by the FDOT District Five to provide NPDES program compliance services. FDOT District Five is located in Central Florida and includes nine counties: Brevard, Flagler, Lake, Marion, Orange, Osceola, Seminole, Sumter and Volusia. District Five has both Phase I regulated areas (Orange and Seminole Counties) and Phase II regulated areas (Brevard, Flagler, Lake, Marion, Osceola, Sumter and Volusia Counties).

Services provided by E Sciences include the preparation and submittal of Phase I and Phase II MS4 annual reports to the FDEP each year; annual inspection of the Department’s six maintenance yards; inspections including preparation of reports and recommended corrective actions for over 800 stormwater treatment facilities; conducting over 500 environmental compliance site inspections on FDOT construction projects; inventory, verification and mapping of over 950 MS4 outfalls; developing SOPs for each MS4 permit program; high risk industrial facility inventories and inspections; providing Illicit Discharge Detection training for FDOT employees; and developing and distributing stormwater education materials.

E Sciences provided technical support on behalf of FDOT District Five for TMDL and BMAP activities for the Lake Jesup, the Ocklawaha River, the Middle St. Johns River, the Wekiva River/Springs, Silver Springs, the Banana River Lagoon, North and Central Indian River Lagoon, the St. Lucie River and the Lake Okeechobee Basins. During the development of each BMAP, E Sciences’ involvement included reviews of FDEP models (PLSM, STEPL, and Bathtub), reviewing pollutant loading data to ensure FDOT received fair and equitable pollutant load allocations and developing project inventories to meet pollutant load reduction goals.

E Sciences also lead the development of the Bacterial Pollution Control Plans (BPCP) for fecal Coliform impairments in Gee Creek located in Seminole County. Efforts included: potential source identification of fecal Coliform bacteria, an interactive maps on the table session, a review of historical monitoring data, and a field event to ground truth potential sources.

As required for the NPDES Phase I MS4 permits, E Sciences developed the seasonal pollutant load estimates and event mean concentrations of a representative storm for each major outfall within the FDOT MS4 boundary of Orange and Seminole Counties. Pollutant load estimates were calculated for 110 major outfalls in Orange and Seminole Counties.