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Home My WebLink About03.f. Review draft Position Paper to award a construction contract in the amount of $748,008 to Platinum Roofing, Inc., the lowest responsive bidder for the Solids Conditioning Building Roof Replacement, District Project 7359; consider exemption from the Page 1 of 9 Item 3.L CENTRAL SAN BOARD OF DIRECTORS ' POSITION PAPER DRAFT MEETING DATE: APRIL 25, 2018 SUBJECT: REVIEW DRAFT POSITION PAPER TO AWARD A CONSTRUCTION CONTRACT IN THE AMOUNT OF $748,008 TO PLATINUM ROOFING, INC., THE LOWEST RESPONSIVE BIDDER FOR THE SOLIDS CONDITIONING BUILDING ROOF REPLACEMENT, DISTRICTPROJECT7359; CONSIDER EXEMPTION FROM THE CALIFORNIA ENVIRONMENTAL QUALITYACT (CEQA); AND AUTHORIZE UP TO A 15-PERCENT CONTINGENCY SUBMITTED BY: INITIATING DEPARTMENT: NATHAN HODGES, ASSOCIATE ENGINEER ENGINEERING AND TECHNICAL SERVICES- CAPITAL PROJECTS REVIEWED BY: CRAIG MIZUTANI, SENIOR ENGINEER EDGAR J. LOPEZ, CAPITAL PROJECTS DIVISION MANAGER JEAN-MARC PETIT, DIRECTOR OF ENGINEERING AND TECHNICAL SERVICES ISSUE On April 17, 2018, eight sealed bids were received and opened for the construction of the Solids Conditioning Building Roof Replacement, District Project 7359 (Project). The Board of Directors (Board) must award the contract or reject all bids within 50 days of the bid opening. Authorization is also required for the General Manager to execute the Contract Documents subject to submittal requirements and include up to a 15-percent contingency. BACKGROUND The Solids Conditioning Building (SCB) roof was constructed in the mid 1970's. During wet weather conditions, the SCB roof experiences significant leakage. Some of the leakage is overcritical electrical equipment. Failure of this equipment could result in significant disruptions to operations as well as create safety hazards. There are also several other critical assets in this building, including one of the two plant control rooms. Over the last 10 years, several repairs have been made to repair significant leaks; however, the entire roof is in poor condition and requires replacement. The roof is over 40 years old and the useful life of a tar and gravel roof is in the order of 20 to 30 years. Temporary measures have been implemented to protect the electrical equipment from water damage; however, a roof replacement is needed as the long-term solution. April 25, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 58 of 72 Page 2 of 9 This Project will replace the existing built-up tar and gravel system with a membrane roofing system, install new roof drains and piping for poor drainage locations, remove decommissioned exhaust stacks, and replace flashing and sheet metal. Additional scope of work items, including coating, relocation and installation of electrical and networking conduits, installation of fall protection systems, modification to steam lines, and demolition of a natural gas line, will be completed separate from the roofing work. These items are relatively minor and, if included in the roofing scope of work, would require a general engineering contractor. I n order to obtain the best cost for roofing, staff has elected to complete the non-roofing scope items separately. Work will be coordinated with the roof installation schedule. Central San staff, along with Calpo, Hom, and Dong Architects, and TJC and Associates Inc., prepared the plans and specifications for the Project. The Engineers estimate for construction was $1,000,000. This Project was advertised on March 30 and April 4, 2018. Eight sealed bids ranging from $748,008 to $1,215,500 were received and publicly opened on April 17, 2018. The Capital Projects Division conducted a technical and commercial review of the bids and determined that Platinum Roofing, Inc. is the lowest responsive and responsible bidder.A summary of bids received is shown in Attachment 2. Central San will administer the construction contract and provide contract administration, inspection, office engineering, and submittal review. Consultant inspection and engineering services will be used to supplement staff as needed under existing Capital Projects As-Needed Agreements. C EE A: Staff has concluded that this Project is exempt from CEQA under Central San CEQA Guidelines Section 15301, since it involves minor alterations to existing public facilities involving no expansion of use, and 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's independent finding that this Project is exempt from CEQA. ALTERNATIVES/CONSIDERATIONS Roofing contractors are in very high demand and securing a contractor this dry weather season is necessary. The existing SCB roof is past its useful life and is in need of replacement before the next wet weather season. FINANCIAL IMPACTS The total estimated cost for this Project is $1,300,000, which includes design, bid, contingency, inspection, construction management, and other roof modifications. This Project is included in the Fiscal Year(FY) 2017-18 Cl B on page 170 with a budget of$1,100,000.Additional funding will be included in the FY 2018-2019 budget to cover the additional funds required to complete the project. Financial Impact Table: Amount 0 Funds budgeted for this project $1,100,000 ❑ Funds taken from current FY 2017-18 CI B contingency $ 0 Funds transferred from current FY2017-18 projects: ❑ a. Updated forecast; estimated savings from project available $ 0 ❑ b.Acceleration of funds for project that is budgeted in future year $ 0 0 c. Combined project scope for bidding purposes: (District Project 7311, Safety-Phase 4) $150,000 d. Potential future year budget impact 0 (May be mitigated through (1) savings from close-outs of current year $50,000 projects; (2) reprioritizing future year projects; (3) cost savings on future year projects) April 25, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 59 of 72 Page 3 of 9 Total Current Year Cost $1,300,000 COMMITTEE RECOMMENDATION The Engineering and Operations Committee reviewed this matter at the meeting on April 25, 2018, and recommended approval of this 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 $748,008 for the construction of the Solids Conditioning Building Roof Replacement, District Project 7359 to Platinum Roofing, I nc., the lowest responsive and responsible bidder; and 3. Authorize the General Manager to execute the Contract Documents subject to submittal requirements and include up to 15-percent contingency. Strategic Plan Tie-In GOAL FIVE: Maintain a Reliable Infrastructure Strategy 2- Facilitate Long-term Capital Renewal and Replacement, Strategy 3- Protect District Personnel and Assets from Threats and Emergencies ATTACHMENTS: 1. Project Location Map 2. Summary of Bids 3. Post-Bid/P reconstruction Estimate 4. Presentation (replaced with revised version) April 25, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 60 of 72 Page 4 of 9 O \ \ 0 200 400 \ \ \ `'\• FEET \ \ \•% Basin A South CONSTRUCTION — \ STAGING AREA = \\\ SOLIDS \�\ NDITIONI BUILDIN D \\\ PROJECT AREA SOLIDS CONDITIONING BUILDING i 1 ❑ �� I I o � Oo Aeration CLA IERS Tanks (SOUT UAD) op PRIMARY 3 80 SEDIMENTATION i TANKS i ❑ PUMP AND BLOWER BUILDING —— o POD HOB U 0 P�PGE IMHOFF PLACE Central Contra Costa Solids Conditioning Building Attachment Y Sanitary District Roof Replacement A*Mk 1 District Project 7359 Location Map April 25, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 61 of 72 Page 5 of 9 ATTACHMENT 2 SOLIDS CONDITIONING BUILDING ROOF REPLACEMENT DISTRICT PROJECT 7359 SUMMARY OF BIDS PROJECT NO.: 7359 NO. OF ADDENDA: 0 DATE/TIME: APRIL 17, 2018 /11AM PROJECT NAME: SOLIDS CONDIITONING BUILDING ROOF REPLACEMENT PROJECT MANAGER: NATHAN HODGES PROJECT LOCATION: 5019 IMHOFF PLACE, MARTINEZ ENGINEER'S ESTIMATE: $1,000,000 NO. BIDDER BID PRICE 1 Platinum Roofing, Inc. $748008 San Jose, California ' 2 Exbon Development, Inc. $850,000 Garden Grove, California Roofing Constructors, Inc. 3 dba: Western Roofing Service $989,431 San Leandro, California 4 Southwest Construction and Property Management $1,005,300 San Bruno, California 5 Pioneer Contractors, Inc. $1,049,000 San Francisco, California 6 Andy's Roofing Co., Inc. $1,106,100 San Leandro, California 7 Stronger Building Services $1,196,500 San Leandro, California 8 Best Contracting Services, Inc. $1,215500 Gardena, California ' BIDS OPENED BY: /s/ Donna M. Anderson DATE: April 17, 2018 April 25, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 62 of 72 Page 6 of 9 ATTACHMENT 3 SOLIDS CONDITIONING BUILDING ROOF REPLACEMENT DISTRICT PROJECT 7359 POST-BID / PRECONSTRUCTION ESTIMATE No. Item Description Amounts % Construction Cost 1. CONSTRUCTION a. Construction Contract $748,008 b. Contingency at 15% $112,201 c. Electrical, Safety, and Miscellaneous Work $138,791 SUBTOTAL - CONSTRUCTION $999,000 100% 2. CONSTRUCTION MANAGEMENT a. District Forces - Construction Management $55,000 - Inspection $51,000 - POD Coordination $5,000 b. Consultants - Hazardous Material $20,000 - Architectural $5,000 - Structural $5,000 - Specialty Inspection $8,000 SUBTOTAL - CONSTRUCTION MANAGEMENT $149,000 15% 3. PREBID EXPENDITURES a. Engineering (Design, Drafting, POD Coordination) $108,000 b. Consultant Fees (Structural, Architectural, Hazardous Material Testing) $44,000 SUBTOTAL - PREBID EXPENDITURES $152,000 15% 4. TOTAL PROJECT COST $1,300,000 April 25, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 63 of 72 Page 7 of 9 Item 3.f. (Handout) SOLIDS CONDITIONING BUILDING ROOF REPLACEMENT, DISTRICT PROJECT 7359 Engineering & Operations Committee April 25, 2018 Presented by Edgar J. Lopez, PE Capital Projects Division Manager and Nathan Hodges, PE Associate Engineer BACKGROUND • Installed in mid 1970's • Roof has exceeded its useful life and needs full replacement • Building contains critical equipment and electrical system CENTRALSAN 1 April 25, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 64 of 72 Page 8 of 9 PROJECT SCOPE OF WORK • Replace tar and gravel with conventional membrane system • New roof expected to last 30+ years, manufacturer to provide a 30-year warranty • Removal of decommissioned exhaust stacks and fan shrouds • Replacement of sheet metal covers Labatement Replacement of edge coping caps Hazardous materials PRECONSTRUCTION ACTIVITIES • Proposals to be solicited from multiple existing District Contractors and incorporated via change order • Work includes: • Coating of existing roof mounted controls conduits • Relocating power and network conduits away from roof edge • Installing additional power and network conduits for security and instrumentation • Installing additional handrail and portable temporary fall protection systems • Steam system modifications • Gas line demolition New wind sock -� CENTRALSAN 2 April 25, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 65 of 72 Page 9 of 9 STAFF RECOMMENDATION Staff recommends the following: Find that the Project is exempt from CEQA; Award a construction contract in the amount of $748,008 for the construction of the Project, to Platinum Roofing, Inc. the lowest responsive and responsible bidder; and Authorize the General Manager to execute the Contract Documents subject to submittal requirements and include up to a 15-percent contingency. QUESTIONS? CENTRALSAN 3 April 25, 2018 EOPS Regular Committee Meeting Agenda Packet- Page 66 of 72