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are responsive to the influent and recycle flows and loadings. In the evaluation, <br />the primary goal will be to define the causative factors for the proliferation of <br />bulking organisms and determine facility modifications which will provide process <br />control. The further objective is to incorporate natural bio-selection of non- <br />filamentous species as opposed to toxification, such as the use of chlorine. Bio- <br />selection has proven as effective, less harmful to effluent quality and a{{urinates <br />the cost and need to control chlorine dosing. <br />The task will evaluate the impact of controNing bulking organisms on tie <br />treatment capacity of each affected unit operation. The flow and loading <br />capacity as a function of the SVI will be defined. <br />The primary clarifiers, aeration basins, and secondary clarifiers will be reviewed <br />to define improvements which could enhance their capacity and performance <br />and the limiting unit operation(s) will be defined. <br />Task 5. Draft and final report <br />The findings of Tasks 1 through 4 will be compiled into a draft report and <br />submitted for review by the City of North Olmsted. The review comments will be <br />incorporated into the report and the final report will be issued. At the Citys' <br />option, aone-day debriefing of the final report will be provided. <br />Preliminary Time Allocations and Costs <br />Tssk Investigator Time Cost <br /> hr $ <br />1 Orris Albertson 20 $ 2,800 <br />2 Orris Albertson 10 1,400 <br />3 Orris Albertson 70 9,800 <br />4 Orris Albertson 30 4,200 <br />5 Oms Albertson 30 4.200 <br /> Sub#otals 160 $ 22,400 <br /> 4 <br />