A Study of Dissolved Oxygen Impairment, North Branch of Onancock Creek, Accomack County, Virginia The goal of the TMDL program is to establish a three-step path that will lead to attainment of water quality standards. The first step in the process is to develop TMDLs that will result in meeting water quality standards. The second step is to develop a TMDL implementation plan. The final step is to implement the TMDL implementation plan, and to monitor water quality to determine if water quality standards are being attained.
Determination of Minimal Instream Flow for Recreational Use Recreational canoeists established a network of gages in the 1970’s that reflect stream levels on Virginia’s rivers. This network of gages depicts at what level canoeing would become impracticable. As such, this is a potential measure of minimal instream flow requirements for recreational boating. This project uses the established network of gages and GPS technology to tie them to elevation benchmarks in order to relate the depicted stream levels to USGS stream gage data.
Rappahannock County Riparian Buffers Rappahannock County has a rural landscape that presents the opportunity to record baseline conditions of riparian buffers. This study involved analyzing a small drainage area in the Upper Thornton River watershed to offer guidance on targeting riparian buffer restoration.
Virginia Shoreline Classification Using basic geomorphic characteristics of the coastal landscape, the shoreline of coastal plain of Virginia is being classified. The selected characteristics will serve as indicators of shoreline stability, potential management strategies, and current and future vulnerability. This is a regional assessment and is not intended for application to parcel level shoreline management issues.
Remote Sensing of River Bed Structure, Rappahannock River - Assessment of Habitat Very high resolution imagery captured during extremely low stands in water levels are being processed to determine river bed characteristics. Image recognition software is being tested as a method for classifying riverbed morphology and composition. The data are being sought as a preliminary fisheries habitat assessment of the river prior to the removal of a large dam known to impact anadromous fish passage. The data will enhance fisheries habitat projects along this and other similar river systems.