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HomeMy WebLinkAbout2018-12-18; City Council; ; Appropriation of additional funds in an amount of $235,000 for the Foxes Landing Lift Station Replacement Project, Capital Improvement Program (CIP) Project No. 5526.CA Review fl.I<_ (i) S~~fi R~port Meeting Date: To: From: Staff Contact: Subject: Dec. 18,2018 Mayor and City Council Scott Chadwick, City Manager Steve Didier, Municipal Projects Manager steven.didier@carlsbadca.gov or 760-602-7539 Appropriation of additional funds in an amount of $235,000 for the Foxes Landing Lift Station Replacement Project, Capital Improvement Program (CIP) Project No. 5526. Recommended Action Adopt a Resolution authorizing appropriation of additional funds in an amount of $235,000 from the Sewer Replacement Fund for the Foxes Landing Lift Station Replacement, CIP Project No. 5526 (Project). Executive Summary This action authorizes appropriation of additional funding to the Project budget for additional construction management, inspection/testing, and staff costs due to unexpected delays from dewatering operations and necessary soil stabilization around the Project site. The recommended action also exceeds the City Manager's current procurement authority and therefore requires City Council authorization per Carlsbad Municipal Code Section 3.28.040.D.3. Discussion On Aug. 23, 2016, City Council adopted Resolution No. 2016-173 and awarded a contract to NEWEST Construction Co., Inc. (NEWEST) for construction ofthe Project located on the north shore of Agua Hedionda Lagoon. Construction of the upgraded facility includes installation of subsurface concrete structures, pipelines and wastewater conveyance appurtenances. Construction of the Project requires installation of a temporary groundwater dewatering system to facilitate construction of the subsurface structures. On Jan. 18, 2017, the City Manager executed Project Task Order #6 under Master Agreement TRANS1475 with Infrastructure Engineering Corporation (IEC) for $307,872 for construction management and inspection services for the Project. On May 22, 2018, City Council authorized an additional $567,000 in Project funding, $526,000 of which increased the construction contract contingency to help fund groundwater dewatering operations and $41,000 for construction management and inspection services. The anticipated contract completion was fall of 2018. Since May 2018, complications with the dewatering system and the need for soil stabilization around the excavation have caused delays to the Project schedule. Construction costs associated with the dewatering operation and soil stabilization will be supported through the December 18, 2018 Item #4 Page 1 of 5 available construction contract contingency as supplemented by City Council on May 22, 2018. However, the City requires additional Project funding to support construction management and inspection services provided by IEC, staff city resources and geotechnical monitoring. Staff estimates the need for an additional $235,000 of related Project costs as follows: Anticipated Additional Funding Request IEC Construction Management & Inspection Services $180,000 City Administrative Costs $20,000 Geotechnical Monitoring Services $35,000 Total Estimated Funding Need $235,000 The dewatering operation and soil conditions have stabilized. However, staff recommends the use of a geotechnical monitor through completion of the dewatering operation to mitigate a potential for settlement associated with the dewatering operation and removal of the shoring system. Construction of the lift station's wet well has continued in parallel with the dewatering operation. The cast-in-place concrete foundation, walls and deck have all been constructed. Upon installation of the wet well's coating system and a hold duration to allow the concrete to cure, the structure will be hydrostatically tested and backfilled. Once the structure has been backfilled, the temporary dewatering system will be removed. Staff now anticipates contract completion in summer of 2019. Fiscal Analysis Staff estimates an increase of $235,000 in the overall Project budget to fund construction management, inspection, and geotechnical monitoring services and city administrative costs. This additional amount brings the total estimated Project cost to $5,142,000. The approved Project budget to date totals $4,907,000, therefore, staff recommends an additional appropriation of $235,000 from the Sewer Replacement Fund to complete the construction phase of the Project. FOXES LANDING LIFT STATION REPLACEMENT, CIP PROJECT NO. 5526 Design and Environmental (Complete) $465,580 Construction Contract (In Progress) $2,870,800 Construction Contingency ($430,620 + $526,000 approved 5/22/18; In Progress) $956,620 Construction Management, Inspection & Material Testing (In Progress) $614,000 Total Additional Construction Costs (Est.) $0 Total Additional Construction Management, Inspection & Material Testing (Est.) $180,000 Total Additional Staff Administrative Costs (Est.) $20,000 Total Additional Geotechnical Monitoring Services (Leighton Consulting, Inc.) 35,000 TOTAL ESTIMATED PROJECT COSTS $5,142,000 TOTAL CURRENT APPROPRIATION -SEWER REPLACEMENT FUND $4,907,000 REMAINING BALANCE ($235,000) ADDITIONAL APPROPRIATION NEEDED -SEWER REPLACEMENT FUND $235,000 December 18, 2018 Item #4 Page 2 of 5 Next Steps Staff will process and execute a new task order with IEC for additional construction management, inspection and testing services costs. Staff will also process a separate purchase requisition with Leighton Consulting, Inc. for geotechnical monitoring and a change order with NEWEST to extend the construction contract completion date through summer of 2019. Environmental Evaluation (CEQA) The Project is exempt from the California Environmental Quality Act (CEQA) per State CEQA Guidelines Section 15302(c) -concerning replacement or reconstruction of existing facilities involving negligible or no expansion of use. A Notice of Exemption was filed in the Office of the San Diego County Clerk on Sept. 1, 2015. Public Notification This item was noticed in accordance with the Ralph M. Brown Act and was available for public viewing and review at least 72 hours prior to the scheduled meeting date. Exhibits 1. City Council Resolution. 2. Location Map. December 18, 2018 Item #4 Page 3 of 5 RESOLUTION NO. 2018-216 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CALIFORNIA, AUTHORIZING APPROPRIATION OF ADDITIONAL FUNDS IN AN AMOUNT OF $235,000 FOR THE FOXES LANDING LIFT STATION REPLACEMENT, CAPITAL IMPROVEMENT PROGRAM (CIP) PROJECT NO. 5526. Exhibit I WHEREAS, the City Council of the City of Carlsbad, California approved funding of $4,907,000 for the Foxes Landing Lift Station Replacement Project in the Fiscal Year 2018-19 CIP; and WHEREAS, staff estimates an additional $235,000 of funding is required for construction management, inspection and testing services, geotechnical monitoring, and administrative costs to complete the scope of work; and NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Carlsbad, California, as follows: 1. That the above recitations are true and correct. 2. That the administrative services director is authorized and directed to appropriate funds from the Sewer Replacement Fund No. 515 in an amount of $235,000, for construction of the Foxes Landing Lift Station Replacement, CIP Project No. 5526. PASSED, APPROVED AND ADOPTED at a Regular Meeting of the City Council of the City of Carlsbad on the 18th day of December, 2018, by the following vote, to wit: AYES: NOES: ABSENT: M. Hall, K. Blackburn, P. Bhat-Patel, C. Schumacher, B. Hamilton. None. None. (SEAL) December 18, 2018 Item #4 Page 4 of 5 PROJECT SITE \ \ .. •, ........ \ \\ •, \ .... . , '• .. .. '· .. ·• .. ·"'-•' PACIFIC OCEAN -•. '. "\ ) \ .. '"---... ,. , ..... .. •11\ ... l::Xhlblt 2 \ ~ \ \ '• ............................. ······-...... , " , ...... ,,...... l AGUA HEDIONDA LAGOON \~ ... ~ .. ·~, t.,. ...... .. ,., .. .,.,...__,. ·, .................... , • . '. LOCATION MAP NOT TO SCALE .............. •, . .. , .. \ ... .................... ., .. .................. , Foxes Landing Lift··-~ ....... . Station Replacement, Project No. 5526 . December 18, 2018 Item #4 Page 5 of 5