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Home My WebLink About07.a. Award contract to Sierra Mountain Construction, Inc.Central Contra Costa Sanitary District ' 7o- BOARD OF DIRECTORS POSITION PAPER Board Meeting Date: April 19, 2012 subject: AWARD A CONSTRUCTION CONTRACT TO SIERRA MOUNTAIN CONSTRUCTION, INC.; AND AUTHORIZE THE GENERAL MANAGER TO EXECUTE CONTRACT DOCUMENTS SUBJECT TO SUBMITTAL REQUIREMENTS FOR THE CONSTRUCTION OF THE OUTFALL IMPROVEMENTS, PHASE 6 PROJECT, DISTRICT PROJECT 7290; AND APPROVE A SUPPLEMENTAL AUTHORIZATION OF $4,000,000 FOR THE TREATMENT PLANT PROGRAM OF THE CAPITAL IMPROVEMENT BUDGET Submitted By: Initiating Dept. /Div,: Clint T. Shima, Assistant Engineer Engineering / Capital Projects REVIEWED AND RECOMMENDED FOR BOARD ACTION: — a. �- C. Shima A. Antkowiak Ann E. Farrell, General Manager ISSUE: On April 10, 2012, six sealed bids were received and opened for the construction of the Outfall Improvements, Phase 6 Project, District Project 7290. The Board of Directors must award the contract or reject bids within 50 days of the bid opening. Authorize the General Manager to execute the contract documents subject to SUBMITTAL requirements. Approval by the Board of Directors is required for a supplemental authorization to the Treatment Plant Program of the Capital Improvement Budget. RECOMMENDATION: Award a construction contract, and authorize the General Manager to execute the Contract Documents subject to favorable review of insurance certificates, bond submittals, appropriate Contractor license, and any other required submittals (SUBMITTALS); and approve a supplemental authorization of $4,000,000 for the Treatment Plant Program of the Capital Improvement Budget (CIB). FINANCIAL IMPACTS: Approximately $3,300,000, including design, bid price, contingency, and construction management. ALTERNATIVES /CONSIDERATIONS: Reject all bids, which is not recommended; and an alternative to approving the supplemental authorization would be to not construct the project. BACKGROUND: The treatment plant outfall was built in 1958 in soils that shift and settle significantly over time. In 1988, as part of the Outfall Rehabilitation, Phase 2 Project, and in 2003, as part of the Outfall Improvements, Phase 5 Project, the land section of the outfall was bypassed to inspect its condition and make repairs. In 1988, 138 joint seals were installed, and 305 additional seals were installed in 2003, out of a N: \PESUP \Position Papers \Shima \7290 -pp- award - Final.doc Page 1 of 7 POSITION PAPER Board Meeting Date: April 19, 2012 subject: AWARD A CONSTRUCTION CONTRACT TO SIERRA MOUNTAIN CONSTRUCTION, INC.; AND AUTHORIZE THE GENERAL MANAGER TO EXECUTE CONTRACT DOCUMENTS SUBJECT TO SUBMITTAL REQUIREMENTS FOR THE CONSTRUCTION OF THE OUTFALL IMPROVEMENTS, PHASE 6 PROJECT, DISTRICT PROJECT 7290; AND APPROVE A SUPPLEMENTAL AUTHORIZATION OF $4,000,000 FOR THE TREATMENT PLANT PROGRAM OF THE CAPITAL IMPROVEMENT BUDGET total of 1,550 joints. The submarine portion of the outfall has been inspected inside and out in 2006, 2009, and most recently in 2011. The 2011 report identified damaged/ missing tie downs at the end of the submarine section. This project will allow for the inspection of both the land and submarine portions of the outfall, and to make repairs that are identified. Attachments 1 a and 1 b show the locations of the project work. The project will retest the land portion of the outfall in a similar fashion to the work performed in 2003, and install new joint seals as necessary. The submarine portion will be inspected by divers and stabilized /protected from boat anchors in Suisan Bay with additional ballast rock. This project will utilize the recently completed Wet /Dry Weather Bypass Structure to bypass final effluent flow directly to Lower Walnut Creek. An approval letter to use the Bypass Structure from the Regional Water Quality Control Board (RWQCB) was received on February 16, 2012. Additionally, the project will construct a new final effluent magnetic flow meter contained within a new meter vault. In 2011, District staff executed a Professional Engineering Services Agreement with Complete Project Solutions (CPS) to prepare design drawings and specifications to construct the new flow meter vault. CPS and District staff prepared the plans and specifications for the project. The Engineer's estimate for construction of Outfall Improvements, Phase 6 Project, District Project 7290, is $2,100,000. This project was advertised on March 16 and 22, 2012. Six (6) sealed bids, ranging from $2,234,500 to $3,588,604 were received and publicly opened on April 10, 2012. The Engineer's estimate was lower than the bidder's prices due to an under estimate of the total costs for groundwater control, which included removal, on -site storage, analysis by a certified analytical laboratory, and transport to a specified discharge point. The Engineering Department conducted a technical and commercial review of the bids and determined that Sierra Mountain Construction, Inc. is the lowest responsive bidder, with a bid amount of $2,234,500. A summary of bids received is shown in Attachment 2. The Outfall Improvements, Phase 6, Project is included in the Fiscal Year 2011 -12 Capital Improvement Budget (CIB) on pages TP -39 to TP -40. Staff has conducted a cash -flow analysis of the Capital Improvement Program budget and concluded that adequate funds are available for this project. District staff will perform construction management, contract administration, inspection, survey, and office engineering. Staff recommends retaining CPS to provide support NAPESUP \Position Papers \Shima \7290 -pp- award - Final.doc Page 2 of 7 POSITION PAPER Board Meeting Date: April 19, 2012 subject: AWARD A CONSTRUCTION CONTRACT TO SIERRA MOUNTAIN CONSTRUCTION, INC.; AND AUTHORIZE THE GENERAL MANAGER TO EXECUTE CONTRACT DOCUMENTS SUBJECT TO SUBMITTAL REQUIREMENTS FOR THE CONSTRUCTION OF THE OUTFALL IMPROVEMENTS, PHASE 6 PROJECT, DISTRICT PROJECT 7290; AND APPROVE A SUPPLEMENTAL AUTHORIZATION OF $4,000,000 FOR THE TREATMENT PLANT PROGRAM OF THE CAPITAL IMPROVEMENT BUDGET services during construction for this project because CPS prepared the plans and specifications and, therefore, has a solid understanding of the project design. The funds required to complete this project, as shown in Attachment 3, are $3,010,000. The total cost of the Outfall Improvements, Phase 6 Project, District Project 7290, is anticipated to be $3,310,000. At its January 12, 2012 meeting, the Board of Directors independently found this project to be exempt from the California Quality Act (CEQA) under District CEQA Guidelines Section 15301. A Notice of Exemption has been filed with the Contra Costa County Clerk. RECOMMENDED BOARD ACTION: Staff recommends the following: 1. Award a construction contract in the amount of $2,234,500 for the construction of the Outfall Improvements, Phase 6 Project, District Project 7290, to Sierra Mountain Construction, Inc., the lowest responsive bidder, 2. Authorize the General Manager to execute the Contract Documents subject to SUBMITTAL requirements, and 3. Approve a supplemental authorization of $4,000,000 for the Treatment Plant Program of the Capital Improvement Budget NAPESUP\Position Papers \Shims \7290 -pp- award - Final.doc Page 3 of 7 ATTACHMENT lb OUTFALL IMPROVEMENTS, PHASE 6 PROJECT DISTRICT PROJECT NO. 7290 LOCATION MAP r � l N a 200 400 F I n Central Contra Costa Y Sanitary District 1� PROJECT AREA 9 I . Existing 72" Outfall Line PROJECT AREA 1 f Pump &Blower Building — 11 Attachment OUTFALL IMPROVEMENTS PROJECT, PHASE 6 District Project 7290 18 Project Location N: \PESUP \Position Papers \Shima \7290 -pp- award - Final.doc Page 4 of 7 ATTACHMENT lb OUTFALL IMPROVEMENTS, PHASE 6 PROJECT DISTRICT PROJECT NO. 7290 LOCATION MAP PROJECT AREA 3 Existing 72" Outfall Line WPESUP \Position Papers \Shima \7290 -pp- award - Final.doc Page 5 of 7 ATTACHMENT 2 OUTFALL IMPROVEMENTS, PHASE 6 PROJECT DISTRICT PROJECT NO. 7290 SUMMARY OF BIDS PROJECT NO.: 7290 NO. OF ADDENDA: 2 DATE /TIME: APRIL 10, 2012/2:00 PM PROJECT NAME: OUTFALL IMPROVEMENTS PHASE 6 PROJECT MANAGER: CLINT SHIMA PROJECT LOCATION: 5019 IMHOFF PLACE MARTINEZ CALIFORNIA ENGINEER EST.: $2,100,000 NO. BIDDER BID PRICE 1 Sierra Mountain Construction, Inc. $2,234,500 San Francisco, CA 94105 2 Mountain Cascade, Inc. $2,332,500 Livermore, CA 94551 3 McGuire and Hester $3,099,735 Oakland, CA 94563 4 Power Engineering Contractors $3,221,629 Alameda, CA 94501 5 Proven Management, Inc. $3,448,787 San Francisco, CA 94111 6 Ranger Pipelines, Inc. $3,588,604 San Francisco, CA 94124 BIDS OPENED BY /s/ Elaine Boehme DATE April 10, 2012 NAPESUP \Position Papers \Shima \7290 -pp- award - Final.doc Page 6 of 7 ATTACHMENT 3 OUTFALL IMPROVEMENTS, PHASE 6 PROJECT DISTRICT PROJECT NO. 7290 POST - BID / PRECONSTRUCTION ESTIMATE No. Item Description Amounts % Construction Cost 1 CONSTRUCTION a. Construction Contract $2,234,500 b. Contingency at 15% $345,500 SUBTOTAL - CONSTRUCTION COST $2,580,000 100% 2 CONSTRUCTION MANAGEMENT a. District Forces - Inspection $120,000 - Construction Management $90,000 - Plant Construction Support $25,000 - Laboratory Testing and Monitoring $100,000 b. Consultant/CPS Inc $30,000 c.. Diving Inspection $10,000 d. Specialty Testing $20,000 SUBTOTAL`- CONSTRUCTION MANAGEMENT $395,000 15% 3 PREBID EXPENDITURES a. District Forces $230,000 b. Consultant Design $30,000 c. Hydraulic Consultant $55,000 d. Geotechnical Consultant $15,000 e. Biological Consultant $5,000 SUBTOTAL - PREBID EXPENDITURES $335,000 13% 4 TOTAL PROJECT COST $3,310,000 5 FUNDS AUTHORIZED TO DATE $300,000 6 ADDITIONAL ALLOCATION NEEDED TO COMPLETE PROJECT (Line 4 - Line 5) $3,010,000 N: \PESUP \Position Papers \Shima \7290 -pp- award- Final.doc rage 7 Of 7