Page 37 - Yucaipa Valley Water District
P. 37

Director Memorandum 18-142



                Date:              November 6, 2018

                Prepared By:       John Wrobel, Public Works Manager

                Subject:           Authorization  to  Execute  a  Contract  with  Weka  Inc.  for  Sewer  Mainline
                                   Repairs in Wildwood Creek, Yucaipa

                Recommendation:        That the Board authorize the General Manager to execute a contract
                                       with Weka, Inc. for a sum not to exceed $32,684.


               The District staff performs routine inspections, maintenance, and repairs of the sewer collection
               system within Yucaipa and Calimesa.  One commonly used inspection procedure is to video the
               interior of the sewer mains to ensure the mainline integrity and to identify any root intrusions.




































               During one of the recent video inspections, District staff found a section of 10-inch HDPE sewer
               mainline that had been compromised.  This section of pipe is located just south of Wildwood
               Canyon Road, on the north side of Yucaipa Creek, in the channel.  This section of pipe was last
               repaired in early 2011.  During the 2010 winter storms, approximately 560 feet of this sewer main
               collapsed and an emergency repair was made using HDPE pipe.  After the repairs were made in
               2011, this section of pipe was video inspected, and no defects were found.







                                       Yucaipa Valley Water District - November 6, 2018 - Page 34 of 49
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