AQUA TERRA Consultants - HSPF/GenScn AND BASINS TRAINING AND TECHNICAL SUPPORT FOR MISSOURI DNR <link rel="StyleSheet" type="text/css" href="default.css"> </head> <body> <table class="title" border="0" cellpadding="6" cellspacing="0"> <tr><td><a href="index.html"><img src="LeafDrop.gif" alt="Aqua Terra Home Page" border=0></a></td> <td valign="center"> HSPF/GenScn AND BASINS TRAINING AND TECHNICAL SUPPORT FOR MISSOURI DNR </td></tr></table> (CH2M-HILL PO No. 35824/Master Agreement No. 35564; AQUA TERRA Project No. 20030) <p>Clients:</p> <p>CH2M-HILL, St. Louis, MO and</p> <p>Missouri Department of Natural Resources, Jefferson City, MO</p> <p>In this project AQUA TERRA worked jointly with CH2M-HILL (St. Louis, Deerfield Beach FL; and Herndon Virginia offices) to provide BASINS and HSPF Training and technical support for development of Total Daily Maximum Loads (TMDLs) within the State. Section 303(d) of the CWA requires that states identify water bodies that do not meet water quality standards and submit a list to the U.S. EPA every two years. For all water bodies appearing on the 303(d) list, states are required to develop Total Maximum Daily Loads (TMDLs) which consider point sources, nonpoint sources, and a margin of safety for uncertainty. A TMDL is the amount of point and nonpoint source pollution which a watershed or stream segment can receive without exceeding its assimilative capacity for a given pollutant or stressor.</p> <p>The 1998 Missouri 303(d) list submitted to EPA consisted of 165 impaired water bodies, for which the Department of Natural Resources (DNR) staff expect to develop TMDLs over the next 15 years. In response to this challenging task, DNR contracted with CH2M-HILL and AQUA TERRA to provide model training and technical assistance for TMDL development for the State's 303(d) listed water bodies. In this initial phase, model training was provided for both the U. S. EPA BASINS analysis system and the HSPF/GenScn modeling framework, using the James River watershed as an example for the training sessions.</p> <p>AQUA TERRA, as a subcontractor to CH2M-HILL, took the lead on the example setup for the James River watershed and prepared and presented the HSPF/GenScn training workshop at DNR’s facilities in Jefferson City. This effort involved obtaining and reviewing land use, topography, meteorologic, streamflow, water quality, point source data, etc.; formatting for input to the model; performing a preliminary hydrology and water quality calibration; preparing related presentation materials for the HSPF/GenScn workshop; presenting the workshop in Jefferson City, MO; and providing recommendations for DNR staff to pursue in improving the model application and TMDL efforts. Continuing technical support was also provided as the staff worked on further model development, refinement and calibration efforts.</p> <p align="justify"><a href="index.html">Back to AQUA TERRA Consultants home page</a></p> </body> </html>