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i6�c5�1 , Civic Center5tar+nwater'Li¢tStatianRenovatfan. Design Services Understanding of Meed Background The City of Santa Ana (City) owns and operates two (2) stormwater lift stations located in the Civic Center area, the Santa Ana Pump Station (Santa Ana PS) and the Flower Pump Station (Flower PS). The Santa Ana PS Is located adjacent to the retaining wall on the north side of Santa Ana Boulevard; it pumps stormwater to a nearby culvert in Santa Ana Boulevard. The Flower PS is located in the south-west corner of the Civic Center parking lot, adjacent to the retaining wall at the intersection of Flower Street and Sixth Street; it pumps stormwater to a 16 -inch gravity pipe in Flower Street. During the 2016 El Nino season, the lift stations experienced issues related to leaking and flooding. Following the rainy season, the City contracted Michael Baker International to perform a preliminary study to identify options and recommended upgrades. The study identified upgrades to replace the mechanical and electrical equipment, perform site and building improvements, and developed two alternatives for each pump station. The City's Parks Department has selected Alternative SAI for the upgrade of the Santa Ana PS, and Alternative F1 for the replacement and upgrade of all associate equipment for the Flower PS's renovation. The City is soliciting proposals from qualified firms to prepare Plans, Specifications & Estimates (PS&E) Contract Documents for the "Civic Center Stormwater Lift Station Renovation" project. Project Goals and Understanding The existing mechanical and electrical equipment within the two stormwater lift stations has reached the end of its useful life. The City would like to upgrade both pumping stations to NFPA 820 compliant and improve the reliability and safety of the Santa Ana PS and Flower PS to prevent flooding of the tributary Civic Center parking and walkway facilities, and to mitigate safety hazards to City staff. Based on Michael Baker's review of the RFP, our site visit, our discussions with the City staff and our experience on similar projects, we have identified the following primary project objectives. • Improve pump station efficiency, performance and reliability • Improve pump station operational and maintenance safety. • Assess the associated electrical equipment and overall site conditions at the pump station and identify recommended improvements/upgrades. • Develop contract documents for implementing the recommended upgrades. • Complete design and construction prior to the rainy season. Given the scope of work, anticipated bidding and contract approval time, and lead time for major equipment, this does not seem to be reasonable; however, Michael Baker offers a solution as described in Optional Task P in the following sections. Based on the project objectives stated above, we have identified the following key issues which are critical to the success of this project: • Identify the necessary electrical upgrades for the utility service and metering, including all coordination required with SCE • Identify and evaluate upgrades to the pump station electrical and site I e r e n n n t i u x A 6