ARNAZ ENGINEERING CONTRACTORS, INC.

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YY R4 A101 I 10 LI111 1 1F 0 0 CITY COUNCIL MEETING DATE: SEPTEMBER 20, 2016 TITLE: AWARD CONTRACT TO ARNAZ ENGINEERING CONTRACTORS, INC., FOR THE WALNUT PUMP STATION BUILDING UPGRADE PROJECT (PROJECT 11-6412) (STRATEGIC PLAN NO. 6, 1C) CITY MANAGER RECOMMENDED ACTION CLERK OF COUNCIL USE ONLY: APPROVED ISEP 2 0 2016 I� As Recommended, 23 R ❑ As Amended ❑ Ordinance on 1'0 Reading ❑ Ordinance on 21d Reading ❑ Implementing Resolution ❑ Set Public Hearing For CONTINUED TO y14=li•111iLTif- ;4 1. Award a contract and authorize the City Manager and Clerk of the Council to execute a construction contract to Arnaz Engineering Contractors, Inc., the lowest responsible bidder, in accordance with the base bid in the amount of $3,596,000, for the term beginning upon execution of the contract and ending upon project completion, for the construction of the Walnut Pump Station Building Upgrade project, subject to nonsubstantive changes approved by the City Manager and City Attorney. 2. Approve the Project Cost Analysis for a total estimated project delivery cost of $4,854,600, which includes the contract base amount, administration, inspection, testing, and $899,000 contingency. DISCUSSION Since 1956, the City of Santa Ana Walnut Pump Station located at 723 West Walnut Street (north of Santa Ana High School near Flower Street) has pumped well water from the buried First Street Reservoir located beneath the Neal Machander Tennis Center at Heninger Park. The property is owned by the City for water production, storage, and pumping purposes. The existing pumps boost stored groundwater to the City's main distribution pressure zone. A 55 -year-old masonry structure is located just south of the pumps, and houses the pump station electrical equipment, as well as an office and shop facilities, but does not house or shield the pumps themselves, which are outdoors and exposed to the elements. Moreover, the building does not meet current codes and does not provide sufficient space for operation and maintenance activities. The scope of work to replace the aging building includes new piping, pumping, structural, mechanical, and electrical works. The improvement consists of re-routing 24 -inch piping, new discharge heads on pumps, new pump impellers, a new brick building, HVAC systems, ventilation systems, monorail crane hoist system, new transformer, switchgear and motor control centers, well controls, replacement of existing conduits, building electrical and lighting, and