What roles do different state agencies have in developing TMDLs?
TMDL development is a collaborative effort between several state agencies. DEQ is the lead agency in the TMDL process and develops the list of impaired waters, TMDLs for these waters, and IPs for certain types of TMDLs, for example where reductions are required from permitted sources. DEQ also administers the public participation component of the TMDL process, and formally submits the TMDLs to EPA and the State Water Control Board for approval. The Virginia Department of Conservation and Recreation (DCR) is the lead for NPS pollution control activities and has responsibility for the development of IPs for TMDLs where nonpoint sources are the dominant contributor. The Virginia Department of Mines, Minerals and Energy (DMME) administers the mineral extraction component of the TMDL process, awards and manages contractual services for TMDL development and special TMDL related studies. The Virginia Department of Health – Division of Shellfish Sanitation (VDH-DSS) is responsible for classify
