U.S. Environmental Protection Agency, Acquisition Section (MCC-10J), 77 West Jackson Blvd., Chicago, IL 60604-3590

B -- EUTROPHICATION PRODUCTIVITY/MODELING FOR THE LAKE MICHIGAN ENHANCED MONITORING/MASS BALANCE STUDY SOL PR-R5-97-10089 DUE 062097 POC Tawanda Thomas/(312)886-5948, Contract Specialist or William Massie/(312)886-5868, Contracting Officer E-MAIL: Environmental Protection Agency, Tawanda.Thomas@epamail.epa.gov. The Environmental Protection Agency intends to award a contract to Limno-Tech, Inc., 501 Avis, Ann Arbor, MI 48104 for Eutrophication/Productivity Modeling for the Lake Michigan Enhanced Monitoring/Mass Balance Project. All components of this study are intensive efforts and are described in the Lake Michigan Mass Balance Work Plan. Mathematical models will be used to predict future conditions of the contaminants of concern and associated parameters. This acquisition focuses on eutrophication/sorbent dynamics modeling as it relates to productivity in the lower food chain and the relationships among different trophic levels, carbon production and consumption, and contaminant dynamics and cycling. The overall goal is to provide the conceptual and logistic framework for implementing the multi-class phytoplankton model in regards to the spatial, physical, chemical and biological features of Lake Michigan and links to other appropriate models. The primary tasks associated with this acquisition include the conceptual and logistic framework for integrating an existing resolved productivity model within the Water Quality Analysis Simulation Program construct; ensuring linkages to the sediment transport, contaminant transport and fate, food chain bioaccumulation models; conceptual and logistic expansion and development of other appropriate trophic levels and functional groups; expert assistance in the refinement of carbon/sorbent relationships and dynamics; expert evaluation of input needs; and coordination with the Lake Michigan Mass Balance Work Groups. See Note 22. (0120)

Loren Data Corp. http://www.ld.com (SYN# 0019 19970502\B-0002.SOL)