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Home My WebLink About07. Award a construction contract to Power Engineering Construction Co. for the Outfall Monitoring Improvements, DP 100018 Page 1 of 7 Item 7. CENTRAL SAN BOARD OF DIRECTORS POSITION PAPER MEETING DATE: MAY 26, 2022 SUBJECT: AWARD A CONSTRUCTION CONTRACT IN THE AMOUNT OF $444,000 TO POWER ENGINEERING CONSTRUCTION COMPANY, THE LOWEST RESPONSIVE AND RESPONSIBLE BIDDER FOR THE OUTFALL MONITORING IMPROVEMENTS, DISTRICT PROJECT 100018 SUBMITTED BY: INITIATING DEPARTMENT: MARK WENSLAWSKI, ASSOCIATE ENGINEERING AND TECHNICAL SERVICES- ENGINEER CAPITAL PROJECTS REVIEWED BY: NATHAN HODGES, SENIOR ENGINEER EDGAR J. LOPEZ, CAPITAL PROJECTS DIVISION MANAGER JEAN-MARC PETIT, DIRECTOR OF ENGINEERING AND TECHNICAL SERVICES Roger S. Bailey General Manager ISSUE The Board of Directors (Board) must award the contract or reject 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. BACKGROUND The Central Contra Costa Sanitary District (Central San) operates a 3.5 mile, 72-inch reinforced concrete outfall pipeline (outfall). The outfall, constructed in 1958, runs primarily underground for nearly 19,000 feet and a submarine section of about 1,700 feet in length. Above the shoreline portion of the outfall, an unvegetated, tidal mudflat extends approximately 1,000 feet from the shore and into Suisun Bay. Central San also maintains a variety of infrastructure associated with the outfall, such as maintenance structures, access risers, air relief valves, cathodic protection systems, inclinometers, and leveling monuments. May 26, 2022 Special Board Meeting Agenda Packet- Page 45 of 532 Page 2 of 7 In 2020, the Outfall Improvements, Phase 7 Project(Outfall Phase 7) completed a full internal inspection and survey of the pipeline as well as necessary repairs and improvements. Staff hired a specialty consultant to evaluate the condition of the existing inclinometers and leveling monuments on the outfall. The consultant's report recommended maintenance and repairs, as well as identified more than the anticipated scope of work than previous Outfall Projects. The additional or unanticipated work included replacement of several inclinometers and leveling monuments. Some of the repairs were completed; however, other repairs or new inclinometers could not be performed during the timeline of the Outfall Phase 7 construction period. The Outfall Monitoring Improvements, District Project 100018 (Project), will replace and construct new inclinometers and leveling monuments and perform non-routine maintenance on the existing systems. Staff has coordinated with various agencies to obtain necessary approval and/or permits from the San Francisco Bay Regional Water Quality Control Board, United States Army Corps of Engineers, United States Fish and Wildlife Service, and California Department of Fish and Wildlife. The Engineer's estimate for the Project is $390,000. This Project was advertised on March 21 and 28, 2022. One bid was received and publicly opened on April 14, 2022. The Capital Projects Division conducted a technical and commercial review of the bid and determined that Power Engineering Construction Company is a responsive and responsible bidder, with a bid amount of$444,000 as shown in Attachment 2.Although the bid received is roughly$50,000 or 14 percent over the Engineer's estimate, staff is recommending to award based on the following analysis of the bid and process: • The scope of work under the Project is specialized and there was very limited interest by prospective bidders. Staff contacted several contractors during the bid period and does not believe that rebidding would bring additional interest. • The costs for the new inclinometers were higher than anticipated and represent the difference between the bid and Engineer's estimate. • Rebidding will likely not save costs considering staff would have to spend significant time in bidding again and extending the permits for the Project. • Power Engineering Construction Company is uniquely familiar with the outfall infrastructure and has successfully completed two of the Outfall Project Phases, thus has the expertise and knowledge to perform the required work. California Environmental Quality Act(CEQA) At the October 21, 2021 meeting, the Board independently found this project to be exempt from the California Environment Quality Act under CEQA Guidelines Section 15301.A Notice of Exemption was filed with the Contra Costa County Clerk on October 21, 2021, as this was required before award of the construction contract due to permitting. ALTERNATIVES/CONSIDERATIONS Proper maintenance of the outfall is required by the National Pollutant Discharge Elimination System permit, which includes the inclinometers. Staff has reviewed whether to continue use of the inclinometers as a tool for monitoring settlement and recommends continuing based on the historic settling of clay soils or bay mud in and around the outfall alignment. FINANCIAL IMPACTS The total estimated cost for the Project is $789,000, which includes planning, design, construction contract, contingency, and construction management costs as shown in Attachment 3. The Outfall Monitoring Improvements Project is included in the FY 2021-22 District Budget on page 257 with a total budget of$610,000.A transfer of$179,000 from the FY 2021-22 Capital I mprovement Budget May 26, 2022 Special Board Meeting Agenda Packet- Page 46 of 532 Page 3 of 7 contingency account is needed to fund the Project. The transfer amount is within the General Manager's delegated authority and will be done if the Board awards the contract. COMMITTEE RECOMMENDATION The Engineering and Operations Committee has reviewed this subject at its meeting on May 4, 2022 and recommended approval. RECOMMENDED BOARD ACTION Staff recommends the Board award a construction contract in the amount of $444,000 to Power Engineering Construction Company, the lowest responsive and responsible bidder for the Outfall Monitoring Improvements, District Project 100018. Strategic Plan re-In GOAL TWO: Environmental Stewardship Strategy 1—Achieve 100% compliance in all regulations GOAL FIVE: Infrastructure Reliability Strategy 1—Manage assets optimally to prolong their useful life, Strategy 3—Protect personnel and assets from threats and emergencies GOAL SEVEN:Agility andAdaptability Strategy 1—Maintain a safe working environment for employees and the public during the COVID-19 pandemic ATTACHMENTS: 1. Project Location Maps 2. Summary of Bid 3. Post-Bid/P reconstruction Estimate May 26, 2022 Special Board Meeting Agenda Packet- Page 47 of 532 Page 4 of 7 N o zoo aoo FEET ` `ttect O / / s A b y f-D 1 ppNE 111 �/ 1 'MNpFF r � o D I li /i k •: .� Guth 9 O f� o HHWC o I Gi t SoC�J�`�g 4 ` o �C Warehou e m O HOB Annex o 2 CENTRALSAN OUTFALL MONITORING Attachment IMPROVEMENTS PROJECT la District Project 100018 Pr j ctc ion Page 5 of 7 SUBMARINE WEIR STRUCTURE N PORTION OF OUTFALL 0 1000 2000 Moog ` FEET rrr rrrPp _ rrrr _ O r r ANT WATERER � R s8 � o MANHOLE RISER (TYP) s- l ti o � 0 o f 11 0 a � E - TREATMENT PLANT iMNO = PROPERTY ' 0 LEGEND O • MANHOLE OR ACCESS HATCH 2 CENTRAL SAN OUTFALL MONITORING Attachment IMPROVEMENTS PROJECT lb ' District Project 100018 Proj ct c ion Page 6 of 7 ATTACHMENT 2 OUTFALL MONITORING IMPROVEMENTS DISTRICT PROJECT 100018 SUMMARY OF BID PROJECT NO.: 100018 NO. OF ADDENDA: 0 DATE/TIME: APRIL 14, 2022/2:00 PM PROJECT NAME: OUFALL MONITORING IMPROVEMENTS PROJECT MANAGER: MARK WENSLAWSKI PROJECT LOCATION: 5019 IMHOFF PLACE, MARTINEZ, CALIFORNIA ENGINEER'S ESTIMATE: $390,000 NO. BIDDER BID PRICE 1 Power Engineering Construction Company $444,000 Alameda, CA 94501 BIDS OPENED BY /s/ Katie Young DATE: April 14, 2022 May 26, 2022 Special Board Meeting Agenda Packet- Page 50 of 532 Page 7 of 7 ATTACHMENT 3 OUTFALL MONITORING IMPROVEMENTS DISTRICT PROJECT 100018 POST-BID/PRECONSTRUCTION ESTIMATE %Of Construction No. Item Description Amounts Cost 1 CONSTRUCTION a. Construction Contract $444,000 b. Contingency at 15% $60,000 c. Permits $20,000 SUBTOTAL-CONSTRUCTION COST $524,000 100% 2 CONSTRUCTION MANAGEMENT a. District Forces -Construction Management/Regulatory $53,000 b. Consultants -AECOM Support Services $30,000 -Zentner $40,000 SUBTOTAL-CONSTRUCTION MANAGEMENT $123,000 23% 3 PREBID EXPENDITURES a. Staff Engineering and Operations $102,000 b. Consultants $40,000 SUBTOTAL- PREBID EXPENDITURES $142,000 27% 4 TOTAL PROJECT ESTIMATED COST $789,000 May 26, 2022 Special Board Meeting Agenda Packet- Page 51 of 532