AWWA MTC64554

When complete in the fall of 2007, Orange County Water District's (OCWD's) GroundwaterReplenishment System (GWR System) will be one of the largest operating advanced recycled waterpurification facility (AWPF) in the world. It will produce up to 70 million gallons per day (mgd) offinished product water using microfiltration (MF), reverse osmosis (RO) and ultraviolet radiation(UV). The GWR system is a very large and complex facility. The equipment is very large andunwieldy, with pumps up to 2,250 Hp and pipelines/valves up to 78-inches in diameter. Thecornerstone treatment facility is also highly automated requiring extensive instrumentation andcontrols linking together multiple modular subsystems. Therefore, start-up and testing is crucial tosuccessful implementation of this project.Planning for start-up began duringthe design of the project and continues through construction. An operational philosophy wasdeveloped during the preliminary design that separated the treatment plant into manageable subsystems.The start-up specification defined what was required for Commissioning and AcceptanceTesting. The Contractor is responsible for preparing and implementing a comprehensive test plan,calibrating equipment, certifying equipment installation, and coordinating among varioussubcontractors/vendors.This paper highlights some of the project's detailed requirements to facilitate start-up and testing,and describes what is required by the specifications to prove that the treatment processes workcorrectly. Particulars of the Contractor's Start-up Plan are discussed, including what types ofinformation must be submitted, who will perform the start-up tasks, and when the work will beperformed. By starting early and spending an appropriate amount of effort to implement the test plan,the Start-up Team will know what needs to be done and be able to prove that the system operates as itwas intended. Successful start-up will provide the information necessary to obtain the regulatorypermits necessary to operate the AWPF into the future. Includes tables.

Product Details

Edition:

Vol. - No.

Published:

03/01/2007

Number of Pages:

20

File Size:

1 file , 2.3 MB