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SR-6-O (5) . . b--I) CF ~~ 1 ~ 1: ~J) GS:SES:DB:HS:bat 12/02/90 (CCl186N5) Council Meeting: December ~ 1990 ;.;z. , Santa Monica, California TO: Mayor and city council FROM: City staff SUBJECT: Request for City Council to Authorize the city Manager to Negotiate and Execute a Contract to Provide Construction Management Support services for the Arcadia Water Treatment Plant Expansion proj ect in an Amount Not to Exceed $150,000. Introduction This report recommends that the City Council authorize the City Manager to negotiate and execute a contract, not to exceed $150,000, with Kennedy/Jenks/Chilton, Consulting Engineers and Scientists, to provide construction management support services during the construction and start-up of the Arcadia Water Treatment Plant expansion project. Background One of the city's budgeted capital Projects is the Expansion of the Arcadia Water Treatment Plant. The construction contract for the Arcadia Water Treatment Plant Expansion was awarded to Margate construction, Inc. in the amount of $2,969,600 on October 9, 1990. At present, the plant treats City well water and then blends the water with water purchased from the Metropolitan Water District (MWD). The present treatment capacity of the plant is 6 million gallons per day. The plant expansion will add 4 million gallons per day of treatment capacity. This additional capacity will - 1 - 6-() .,j . ~~ . . allow for increased use of less expensive well water and will reduce reliance on MWD's increasingly scarce imported water supplies. The expansion of the plant will include construction of an aeration treatment process to remove trichlorethylene (TCE). This treatment process will enable the city to reactivate wells which were closed when the city determined that the water involved had higher than EPA acceptable levels of TCE. By utilizing Kennedy/Jenks/Chilton's for construction support services the City Engineer's staff will be augmented with the necessary expertise to monitor construction and installation of various technologically sophisticated systems. The consultant will also monitor the treatment process and plant start-up. The maximum estimated cost of these construction support services is $150,000 based on a 9-month construction period. Consultant Selection Staff obtained proposals for construction management support services from two firms, Kennedy/Jenks/Chilton and C.I.A. Consultants. The proposed costs of these two submittals were not significantly different. These proposals were reviewed by the City Engineer and utilities Manager. Based on this review, staff recommends selection of Kennedy/Jenks/Chilton for the following reasons: o Kennedy/Jenks/Chilton was the firm which designed the proj ect and their staff is therefore very knowledgeable regarding the details of the treatment processes involved; - 2 - . . o Kennedy/Jenks/Chilton has an in-depth experience in the construction management of specialized water treatment projects; and o Kennedy/Jenks/Chilton has adequate staff resources available to satisfy the construction support needs of the city. BUdget/Financial Impact Funds for this project in the amount of $150,000.00 are available in the following CIP Accounts: 25-760-671-23990-8927-99135 $ 50,000.00 25-760-671-24890-8927-99136 Total 100,000.00 $150,000.00 Recommendations It is recommended that the City Council: 1. Authorize the City Manager to negotiate and execute a contract with Kennedy/Jenks/Chilton, consulting Engineers and Scientists, to provide construction management support services for the Arcadia Water Treatment Plant expansion project in an amount not to exceed $150,000, and 2. Authorize the City Engineer to issue any necessary change orders and complete additional work in conformance with the Administrative Instruction on change orders. Prepared by: Stan Scholl, Director of General Services Byron Gaines, utility Manager Dave Britton, Acting City Engineer - 3 -