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<br /> Task 350. Determine Industrial Flows. <br /> Using available information on industrial water .use, whether <br /> municipal or wells, wastewater discharge, and product production, <br /> existing industrial flows will be computed by subbasins. Using <br /> prediction of water reuse, industrial pretreatmEnt requirements, etc., <br /> future industrial flows will be generated, by subbasin. <br /> Task 360. Determine Peak/Maximum/Average Flow Ratios. <br /> Based on WWTP records and general municipal experience, the <br /> present peak to average and maximum day to average flow ratios will be <br /> calculated. <br /> For design purposes, future ratios will be predicted. For <br /> sewer and pump station design, decrease in peaking factors with <br /> increase in tributary area may be cons idered. Input from the <br /> subsequent two tasks may necessitate recalculating these ratios before <br /> detailed calculation on final alternatives are started. <br /> Task 370. Evaluate If Infiltration/Inflow Is Excessive. <br /> - <br /> Based on available flow records, a desk-top evaluation of <br /> whether infiltration/inflow is excessive will be made. ~f III is <br /> found to be excessive, as defined by EPA regulations, a program for <br /> isolating III and for shm.,ring cost-effectiveness of remedial <br /> construction will be drawn up and presented to the City staff for <br /> consideration of additional field work. <br /> Task 380. Evaluate Flow Reduction. <br /> --- <br /> Hethods of reducing water usage, and thus wastewater flows, <br /> will be generally described and evalua ted. If it appears tha t a flow <br /> reduction program is warran ted, additional work to describe in detail <br /> the public information program, field visits, etc., will be presented <br /> to the City staff for consideration. If the program is authorized, <br /> flow reductions anticipated will be taken into account in Task 360. <br /> Task 390. Define Design Period and Forecast Flows. <br /> In conjunction with City staff, the design pe riods for <br /> sewers and for treatment plants and pump stations will be defined. <br /> Based on these design pe riods, design flows from each <br /> subbasin will be developed, by decade, if appropriate. <br /> 21 <br />