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Bidjugde
JOB
Grossmont Reservoir Overflow Retrofit
BID DATE
03/19/21 - 2:00
AGENCY
Helix WD
ESTIMATE
$370,000
SCOPE
Wright Construction Engineering Corp - $355,000 Cass Construction - $367,700 M Rae Engineering - $388,780 Wier Construction - $397,030 RSH Construction Canyon Springs - $407,070 El Cajon Grading & Engineering Company - $466,226 Paul Hansen Equipment - $538,461 Tharos Inc. - $718,000 Originally constructed in 1978 as part of the Grossmont Reservoir project, a 30-inch diameter CML&C overflow pipe conveys overflow water from the Grossmont Reservoir north and south tanks into the city of La Mesa’s storm drain system. District staff researched alternate methods and developed a design to further protect the reservoir from the risk of backed up storm drain water into the overflow piping resulting from unforeseen obstructions to the city’s storm drain system or the 30-inch overflow pipe. The retrofit to the overflow piping will additionally meet the air gap requirements of the state of California’s Department of Drinking Water. https://www.ebidboard.com/public/projects/showproject.asp?mbrguid={6B119024-2A42-42C0-8410-A2BD1240730C}&projectguid={95A4F612-8A19-43A3-9859-3CFD8AA9B210} chris.mcrae@helixwater.org
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