Agmt 2008 Carollo Engineers Inc - Laserfiche WebLink

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• Input on operation and maintenance requirements of existing primary effluent flow equalization strategy. • 1998 storm 24-hour data. Consultant Deliverables: • Graphs of historical flow data. • Summary table of storage volume requirements. • Summary table of alternatives comparison. • Summary table of cost of alternatives. • Draft TM (5 hard copies). Task 1.11 -Digester 3 Evaluation. Consultant shall prepare a TM to evaluate whether to rehabilitate Digester 3 or replace it with a new digester or another tank configured for another use. As part of this task, Carollo will evaluate anticipated solids production to determine whether Digester 3 is needed for solids treatment. Next, Carollo will rely on the limited condition assessment (concrete coring analysis) performed by others for Digester 3 to estimate the extent of repairs needed in order to assess the cost and constructability of this rehabilitation and compare it to the cost of providing a new tank for use as a digester or another function (i.e. flow equalization) at the same location, Information and/or Services Provided by City: • Available record drawings and specifications of past WPCP designs, • July 2008 Evaluation of Concrete Structures (Final Report). • Input on operation and maintenance requirements of Digester 3. Consultant Deliverables: • Summary table of alternatives comparison. • Summary table of cost of alternatives. • Draft TM (5 hard copies). Task 1.12 -Electrical System Evaluation. Consultant shall prepare a TM to evaluate the key electrical and instrumentation system improvements needed at the plant to support rehabilitation of the WPCP. These include: 1) replacement alternatives for the Pacific Gas & Electric (PG&E) service transformer; 2) Consulting Services Agreement between Project No. 08-593-52-239 City of San Leandro and Carollo Engineers, Inc. Page 23