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SR 07-12-2016 3C City Council Report City Council Meeting: July 12, 2016 Agenda Item: 3.C To: Mayor and City Council From: Martin Pastucha, Director, Public Works, Water Resources Subject: Award Design and Construction Contract for City Services Building Well Recommended Action Staff recommends that the City Council: 2 1. Award Bid #77 to BC Environmental, a California-based company, for the City Services Building Project exploratory boring and water supply drilling project; 2 2. Authorize the City Manager to negotiate and execute a contract with BC Environmental, in an amount not to exceed $269,037(including a 10%contingency); Authorize the Director of Public Works to issue any necessary change orders to 3. complete additional work within agreement authority. Executive Summary The City of Santa Monica is seeking a California licensed well drilling contractor to resources and supporting the innovative City Services Building project, which has as a design goal of meeting the Living Building Challenge requirements of net zero water and energy for the project. Specifically, the contractor would drill a boring approximately 650 feet deep in order to evaluate the presence of fresh groundwater. If fresh groundwater is discovered, a portion of the boring would convert to a shallow water supply well at a location on the northwest side of City Hall. This well would be utilized as a secondary source of water for the City Services Building Project. In April 2016, the City solicited bids for such services. After reviewing the five bids received, staff 2 recommends awarding the contract to BC in an amount not to exceed $269,037. Background A primary objective of this project is to drill and obtain hydrogeologic data from a deep exploratory boring which would be used to assess the qu groundwater resources in this portion of the Coastal sub basin. A secondary objective of the project, if fresh groundwater is present, is to construct a shallow, small-diameter potable-supply water well to support the proposed City Services Building project (CSB). Once tested and permitted, groundwater from the well would be treated and utilized as a supplemental onsite water source for the CSB. The design of the potable well would 1 of 4 be based on the hydrogeologic data obtained from the exploratory boring. The proposed deep exploratory boring would be drilled using standard water well drilling methods to collect samples, evaluate the subsurface geology, and obtain geophysical logging data from the borehole. A critical piece of data the City would collect is whether fresh groundwater water exists in the subsurface at this location, and if so, the depth to the subsurface interface between fresh groundwater water and saline groundwater. A direct benefit of this data is that it would - term water self-sufficiency. The exploratory boring, and any subsequent potable supply well, would be co-located in the same borehole on the west side of City Hall (see Figure A). This location was selected in consultation with the CSB team (Architecture Services, Office of Sustainability and the Environment, and Water Resources), and the State Water Quality Control Board, Division of Drinking Water. For the purpose of permitting, the potable supply well, if constructed, would be designated Santa Monica City Hall Well No. 1 (SMCH Well No. 1). If determined to be feasible, the new well would be constructed in compliance with local codes and regulations and in accordance with the following documents: State of California Water Well Standards, Bulletin No. 74-81, dated December 1981, and its Draft Supplement Bulletin No. 74-90 dated June 1991; Sections 13800 through 13806 of the California Water Code, and; American Water Works Association (AWWA) Standard for Water Wells (AWWA A100-06). A geological consultant previously retained by the City (Richard Slade & Associates) would be on site to supervise the drilling and water well construction activities. Discussion The proposed CSB is planned to be an award winning self-sustaining facility that would employ innovative design and technical applications to achieve net zero energy and water. Net zero water would be primarily achieved through the harvesting and treatment of rainwater on site and the use of composting toilets almost eliminating water use for flushing. When precipitation is scarce, the project would rely on a supplemental 2 of 4 water source provided by a shallow onsite groundwater well. The fresh groundwater would be treated onsite to potable standards acceptable to the State Water Resources Control Board Division of Drinking Water prior to use. The recommendation in this report would result in, among other things, the collection of necessary and valuable inable water planning and, if feasible, construction of the necessary shallow supply well for the CSB project. Vendor Selection On April 14, 2016, the City published Notices Inviting Bids to furnish and provide drilling and well construction work in accordance with City specifications. The bid was posted on the City's on-line bidding site, and notices were advertised in the Santa Monica Daily Press in accordance with City Charter and Municipal Code provisions. A total of 32 vendors downloaded the bid. Five bids were received and publicly opened on May 19, 2016. Bid results are as follows (not including a 10% contingency): BiddersBase Bid 2 BC Environmental $ 244,579 ABC Liovin Drilling $ 273,084 Cascade Drilling $ 274,710 Yellow Jacket Drilling $ 291,422 Hydro Resources West, Inc. $ 305,500 Bids were evaluated based on the criteria in SMMC 2.24.072, including price, previous experience, ability to deliver, quality of product, and compliance with City specifications. 2 Staff contacted references that were provided by BC Environmental for similar projects in La Puente, CA and Santa Barbara, CA. Reference agencies reported that the work was produced in a timely and cost-efficient manner where quality was maintained 2 throughout. Staff also verified that BC Environmental's contractor license is active and 2 in good standing. Based on these criteria, BC Environmental, the lowest bidder, is recommended as the best bidder. Timeline Work is scheduled to begin in the third quarter of 2016, and drilling operations would take approximately two to four weeks to complete. During this time the staff vehicles 3 of 4 that normally park on the northwest side of City Hall would be temporarily directed to other parking locations. The schedule of work would be finalized and coordinated in consultation with the various offices which occupy City Hall. A work notice fact sheet would be distributed in advance of the planned work. Financial Impacts and Budget Actions 2 The agreement to be awarded to BC Environmental is for an amount not to exceed $269,037. Funds are available in the FY 2016-2017 Capital Improvement Program budget in the following accounts: Account Number Description Amount C019045.589000 Olympic Subbasin Remediation $244,037 C014083.589000 City Services Building $25,000 Total $269,037 Prepared By: George Rodriguez, Senior Water Resources Protection Specialist Approved Forwarded to Council Attachments: A. Figure A - Well Location Map 4 of 4 City Hall Well No. 1 Site City Hall 155 0310 AERIALPHOTO FROM GOOGLE EARTH®Scale (in feet) FIGURE EXPLORATORYBOREHOLE/WELLLOCATION MAP PROPOSED SANTAMONICACITYHALLWELLNO. 1 wĻŅĻƩĻƓĭĻʹ AgreementNo.10336 (CCS)