HomeMy WebLinkAboutChange Order #1 MemoPublic Works Services
Memo
TO: John DeLeo
Finance Director
FROM: Jeff Ratliff
PWS Director
DATE: 05/15/14
RE: Change Order – Engineering Design
Oxidation
Ditch Improvement Project
TetraTech has requested a change order in the amount of $37,176 to the referenced engineering design project. This is due to a number of factors including:
Staff
has elected to replace the surface aerators in the oxidation ditch – replacement was not included in the original scope of work. This increases the scope of work to include additional
sections and details, electrical plans, yard piping sections, etc.
Staff has elected to add a cover to the improved oxidation ditch to eliminate overspray at the WWTP as well as offsite
to the east. This also increases the scope of work for project completion.
The proposed change order increases the project budget to $178,657 – which is approximately 6.9% of estimated
project construction costs (see attached Opinion of Probable Cost). TetraTech’s Amendment No. 1 to Task Order No. 4 is also attached. Thanks.