BACKGROUND
Partridge Lift Station was constructed in 2010 and serves the Thunderbird Mobile Home Park, and two professional lots on Partridge Street. This sewer lift station is a submersible pump station located behind the curb, in the Partridge Street cul-de-sac, south of Garden Grove Boulevard. This lift station requires excessive maintenance due to the frequent pump clogging caused by flushable wipes from the tributary area. GGSD provided public education and outreach to the tributary area in the past few years but no noticeable mitigation was observed in the pump clogging issue.
To remedy the problem, the District conducted a preliminary investigation into adding a mechanical sewage grinder up stream of the lift station and confirmed the feasibility. A preliminary design of this improvements was performed by AKM to determine the grinder size and installation requirements. At our request, AKM submitted a proposal to staff to convert the preliminary design to a final design, for an amount not to exceed $157,086.
AKM has the same design team designated to perform this work and has the necessary archives that would afford the District the distinct advantage of a much lower cost, as well as a streamlined schedule, that would not be attainable with a competitive bid process of other consultants.