U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

B -- REAL-TIME CONTROL ALTERNATIVES TO MAXIMIZE IN-LINE STORAGE CAPACITY OF WET WEATHER FLOW SOL RFQ-OH-97-00803 POC Sharon Clement (513) 366-2030 WEB: Office of Acquisition Management -- Cincinnati Contracts Management Division, http://www.epa.gov/oam/cinn_cmd. E-MAIL: Sharon Clement -- Cincinnati Contracts Management Division, clement.sharon@epamail.epa.gov. EPA s National Risk Management Research Laboratory (NRMRL), Urban Watershed Management Branch (UWMB) of the Water Supply and Water Resources Division (WSWRD) of is soliciting quotations on conducting a pilot-scale evaluation of Real-Time Control (RTC) alternatives to Wet Weather Flow (WWF) to maximize inline storage capacities of combined sewerage systems. It is required that RTCs should be aimed at eliminating/reducing overflows and maximizing the utilization of existing storage volumes within the sewer network. The contractor is required to be an owner, manager or operator of, or a consultant for, a complex urban collection system and have extensive experience in the development and use of models for assessment and operation of urban sewerage systems and drainage areas. The contractor shall conduct this project on a selected part of an urban drainage system to involve: (A) Use of dynamic mathematical models and simulations for the selected drainage area to assess different RTC alternatives, such as supervisory control actions by operators in response to the observed conditions in the combined sewer system and automatic control strategies based on levels of flows within the network; (B) Use of radar-based rainfall measurement and forecasting as a tool for CSO control by initiation of control actions in advance of the actual occurrence of the WWF and for enhancing hydrological data gathering. The radar-based technology may not require extensive mathematical modeling prior to its implementation. If the above is true, the use of radar-based technology will be simpler and less expensive than other alternatives and will be considered an important finding of this study; (C) Evaluation of potential benefits of different RTC strategies, including radar-based technology, and assessment of respective implementation costs for each promising alternative; (D) Preparation of a report that would contain all information generated by this project. The period of performance will be twenty-four (24) months from the date of award. EPA intends to issue a request for written quotations (RFQ). The RFQ-OH-97-00803 will be issued on or about October 15, 1997 with written quotations due on or about November 3, 1997. All responsible sources may submit a written quotation which will be considered by the Agency. Requests for RFQ must be in writing. NO TELEPHONE REQUESTS WILL BE ACCEPTED. E-mail or faxed requests are acceptable. The fax number is (513) 366-2004. The mailing address is 26 W. Martin Luther King Drive, Cincinnati, OH 45268. (0269)

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