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• J 40 James W. Davis, P.E. August 25, 2000 0 Page 3 equivalent channel approach is not appropriate for the Blue Heron modeling or the County's stormwater master plan modeling. CALPINE/ECT will refine the Visual Hydro model to include detailed physical configurations (connecting culverts, actual reach sections, etc.) to replace the previously simplified equivalent channels. CALPINE/ECT will update the land use for the Visual Hydro Model to represent a higher level of resolution for the various usages. Such resolution shall be consistent with the level of detail contained in the GIS and other land use and canal configuration data provided by the CITY, COUNTY and WATER CONTROL DISTRICT. (The required Water Control District data will be provided by Carter and Associates under separate agreement with Calpine/ECT.) The CITY, COUNTY and WATER CONTROL DISTRICT shall provide the required data within the schedule previously established by the MWG. In the event such data has not been timely provided, CALPINE/ECT will proceed with the modeling efforts based on the information available at the time. Calibration of the hydrologic/hydraulic model will be conducted. The refined and calibrated model will then be ready for use by the County, City, Water Control District and SJRWMD to model their respective proposed water management scenarios. Task S. Water Quality Modeling. Similar to hydrologic modeling task, water quality modeling will be conducted. CALPINE/ECT will use Event Mean Concentration (EMC) calculations to model water runoff quality. The EMC calculations will include the following constituents: total nitrogen, total phosphorus, orthophosphorous, BOD, suspended solids, total lead, total zinc, total coliform, and TDS. The water quality transport will be implemented in the EXTRAN block to simulate water quality in the canal system and at the outfalls. The water quality transport model will then be ready for use by the County, City, Water Control District and SJRWMD to model their respective proposed water management scenarios. Task 6. Model Delivery Upon completion of the modeling efforts, CALPINE/ECT will provide the following information to the City, County and Water Control District: o Database and inventory; o Methodology; o Model segmentation; o Hydrologic and hydraulic calibration; and o Water quality model setup. A copy of the model inputs and database will be delivered by CALPINE/ECT to the County, City, Water Control District and SJRWMD, for future use. CALPINE/ECT will provide a one -day training workshop for the County, City, and Water Control District staff and/or County's selected consultant on the operation of the developed model. The COUNTY, CITY, and WATER CONTROL DISTRICT will be responsible for obtaining registered licenses and users' manuals for their respective use of the Visual Hydro software.