Laserfiche WebLink
6.2B <br /> REPCJRT Page 1 <br /> To the Honorable Mayor and City Councii <br /> Fro�n the City Manage� <br /> May 21, 2007 <br /> SUBJECT <br /> Final Acceptance —Water Circulation Pump Stations at Marlin Drive <br /> FLECOMMEHDATION <br /> Accept, by motion, the Water Circulation Pump Sfiations at Marlin Drive and authorize <br /> the reiease of bonds and retention according to City procedures. <br /> BACKGROUND <br /> Water circulation studies conducted by City Engineering & Construc#ion staff and <br /> consultants identified areas of poor water circulation in the Redwood Shares Lagoon <br /> System. Poor water circulation results in excessive afgae and widgeon grass growth, <br /> low oxygen content, and decaying vegetation during the summer months. The water <br /> circulation pump statians force the fiow of waier around Mariin Drive ta promoie <br /> increased water quality. Submersible pumps were placed in the reinforced concrete box <br /> culverts, which currently cross under the roadway. The pumps are electric-powered and <br /> computer controfied, and wi#1 only operate when necessary depending on the season <br /> and tide conditians. <br /> The contract for this project in the amount of$310,694 was awarded in January 2006, to <br /> MKM Construction, Inc. of Santa Clara, CA. Construction was completed by MKM in <br /> October 2a�6; however the pumps were not approved for operation until Aprii 6, 2007 <br /> when upgrades to PG&E transformers, and installation of pump controE parts were <br /> compieted by the pump manufacturer. Necessary repairs to a portion of the box cuivert <br /> resulted in one change order for $19,744 (6.3% of the cantract price) and a tatal praject <br /> cost of$330,438. Tre project conforms to the approved plans and specifications. <br /> ALTERNATIVES <br /> Council may elect not to accept the Water Circulation Pump Stations at Marlin Drive <br /> which would be contrary to prior Council action. <br /> F[SCAL IMPACT <br /> Funds in the amount of $40Q,000.00 were appropriated in the Fiscal Year 2004/05 GID <br /> 1-64 Program Budget for this project. <br /> �— a--" �_� <br /> �. <br /> C._ �_..._ .�a,, _ <br /> .,�,°� ,.-�~-,� <br /> Paul Willis, P.E. Chu Chang, P.E. <br /> Senior Civil Engineer Manager, E n ering & Cons uction <br /> tY� �r` <br /> �.�.�"`� <br /> Peter Ingram `� Ed Everett <br /> Director, Commun ty Development Services City Manager <br /> AT"fACHMENTS <br /> None <br /> RE�ATED DOCUMENTS IN CITY CLERK'S OFFICE <br /> None <br />