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Home My WebLink About05. Award a construction contract, and amend existing agreement with Brown and Caldwell for Headworks Screening Upgrade, DP 7327Central Contra Costa Sanitary District BOARD OF DIRECTORS POSITION PAPER 5. Board Meeting Date: November 3, 2016 Subject: AWARD A CONSTRUCTION CONTRACT AND AUTHORIZE THE GENERAL MANAGER TO EXECUTE CONTRACT DOCUMENTS SUBJECT TO SUBMITTAL REQUIREMENTS WITH INSERT COMPANY; AND AUTHORIZE A PROFESSIONAL ENGINEERING AGREEMENT AMENDMENT WITH BROWN AND CALDWELL FOR THE CONSTRUCTION OF THE HEADWORKS SCREENING UPGRADE, DISTRICT PROJECT 7327 Submitted By: Brad Leidecker, Associate Engineer RE VIE WED AND RECOMMENDED FOR BOARD ACTION: C. Mizutani — Senior Engineer E. Lopez — Capital Projects Division Manager JM. Petit — Director of Engineering and Technical Services Initiating Dept./Div.: Engineering and Technical Services/Capital Projects [Delete if not neededl K. Alm Roger S. Bailey Counsel for the District General Manager ISSUE: On October 19, 2016, insert number (#) sealed bids were received and opened for the construction of the Headworks Screening Upgrade, District Project 7327. The Board of Directors (Board) 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. BACKGROUND: The Capital Improvement Budget (CIB) Priority Ranking for this project is critical and the work aligns with the District's Strategic Plan, specifically Goal No. 6, which is "Maintain a Reliable Wastewater Infrastructure." The project will install four new multi -rake bar screens with fine openings to replace the existing climber screens and grinder, a screenings conveyance sluiceway, washer compactors, and a screenings disposal facility. Two of the existing climber screens and grinders will be rebuilt and installed at Headworks in the two spare influential channels to allow for more operational reliability and process redundancy. The project work area is shown in Attachment 1. This project will significantly improve the following challenges: • Grinding of the screenings has resulted in several negative impacts, such as increased plastics and floatables in the liquid and solid streams, and equipment fouling throughout the treatment plant. • The existing screens are not enclosed. The new screening removal equipment and new enclosed facilities have been designed to help reduce odor issues. Pagel of 6 POSITION PAPER Board Meeting Date: November 3, 2016 Subject AWARD A CONSTRUCTION CONTRACT AND AUTHORIZE THE GENERAL MANAGER TO EXECUTE CONTRACT DOCUMENTS SUBJECT TO SUBMITTAL REQUIREMENTS WITH INSERT COMPANY; AND AUTHORIZE A PROFESSIONAL ENGINEERING AGREEMENT AMENDMENT WITH BROWN AND CALDWELL FOR THE CONSTRUCTION OF THE HEADWORKS SCREENING UPGRADE, DISTRICT PROJECT 7327 • Maintaining and sourcing replacement parts for the existing screens and grinders is becoming more difficult and expensive. Brown and Caldwell (B&C) is the design engineer and prepared the plans and specifications for the project. The Engineer's estimate for construction is $6,500,000. This project was advertised on September 15 and 22, 2016. Number sealed bids ranging from $X to $X were received and publicly opened on October 19, 2016. The Engineering Department conducted a technical and commercial review of the bids and determined that is the lowest responsive and responsible bidder with a bid amount of $X. A summary of bids received is shown in Attachment 2. District staff will administer the construction contract and provide construction management, oversee consultant services, and coordinate activities with Plant Operations. District staff recommends retaining B&C to provide support services during the construction phase of this project, which includes reviewing shop drawings and submittals, responding to design questions, evaluating change order requests, performing site visits to verify design compliance, controls integration support, structural inspections, and other related activities. An as -needed construction support services agreement amendment with a cost ceiling of $350,000 has been negotiated with B&C for this project. To date, the total cost ceiling for the B&C agreement is at $1,090,000, which included design of the Substation 16 Switchgear (Sub 16) Replacement and Headworks Screening Upgrade and construction support services for the Sub 16 project. The proposed agreement revision will increase the total agreement cost ceiling to $1,440,000. CEQA: Staff has concluded that this project is exempt from the California Environmental Quality Act (CEQA) under District CEQA Guidelines Section 15302, since it involves replacement of existing public facilities at the same location and with the same purpose. Approval of this project will establish the Board of Directors' independent finding that this project is exempt from CEQA. FINANCIAL IMPACTS: The total project cost is anticipated to be $8,400,000, which includes planning, design, bid price, construction, contingency, and construction management as shown in ttahnment $. This project is included in the Fiscal Year (FY) 2016-17 District Budget on page 137 with a total estimated project budget of $8,400,000. Page 2 of 6 POSITION PAPER Board Meeting Date: November 3, 2016 Subject AWARD A CONSTRUCTION CONTRACT AND AUTHORIZE THE GENERAL MANAGER TO EXECUTE CONTRACT DOCUMENTS SUBJECT TO SUBMITTAL REQUIREMENTS WITH INSERT COMPANY; AND AUTHORIZE A PROFESSIONAL ENGINEERING AGREEMENT AMENDMENT WITH BROWN AND CALDWELL FOR THE CONSTRUCTION OF THE HEADWORDS SCREENING UPGRADE, DISTRICT PROJECT 7327 ALTERNATIVES/CONSIDERATIONS: Reject all bids, which is not recommended. COMMITTEE RECOMMENDATION: The Engineering and Operations Committee reviewed this subject at its meeting on October 21, 2016, and recommended approval to award the construction contract. RECOMMENDED BOARD ACTION: Staff recommends the following: 1. Find that the project is exempt from CEQA, 2. Award a construction contract in the amount of $X for the construction of the Headworks Screening Upgrade, District Project 7327, to , the lowest responsive and responsible bidder, Authorize the General Manager to execute the Contract Documents subject to SUBMITTAL requirements, 4. Authorize the General Manager to execute an agreement amendment with Brown and Caldwell to increase the cost ceiling from $1,090,000 to $1,440,000 to provide as -needed construction services. Attached Supporting Documents: 1. Project Location Map 2. Summar of Bids .--P st-moi -Pieconstruction Estimate Page 3 of 6 0 100 200 FST CONSTRUCTION STAG I NG AREA a 0 ATTACHMENT 1 HEADWORKS SCREENING UPGRADE DISTRICT PROJECT 7327 LOCATION MAP SOLIDS ND#TIONI BUILDIN CLARIFIERS (SOUTI 'QUAD) • PUMP AND BLOWER.. BUILDING POD IMH 1P1* PLACE AN- sb,2,04, —� I It 4 I • PRIMARY S s D!MENTATi f N TANKS HEADWORKS PROJECT AREA Page 4 of 6 ATTACHMENT 2 HEADWORKS SCREENING UPGRADE DISTRICT PROJECT 7327 SUMMARY OF BIDS PROJECT NO.: 7327 DATE: OCTOBER 19, 2016/2PM PROJECT NAME: HEADWORKS SCREENING UPGRADE PROJECT LOCATION: 5019 IMHOFF PLACE, MARTINEZ, CALIFORNIA NO. OF ADDENDA: 2 ENGINEER ESTIMATE: $6,500,900 NO. 1 2 4 5 6 7 8 BIDDER BID PRICE BIDS OPENED BY/s/. DATE October 19, 2016 Page 5 of 6