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Home My WebLink AboutItem 2i: Accept work by Ace Restoration and Waterproofing for Baldwin Reservoir 2 & 3 Repair Project as Complete and Authorize Final Payment of ARC il k.. ‘), ;,111911 II' :,Inaa•na..ua //, Aus•••S,Ia03 STAFF REPORT Public Works Services Department DATE: June 5, 2012 TO: Mayor and City Council FROM: Tom Tait, Public Works Services Director Prepared by: Ken Herman, Deputy Public Works Services Director Mark Rynkiewicz, Associate Civil Engineer SUBJECT: ACCEPT ALL WORK PERFORMED BY ACE RESTORATION AND WATERPROOFING, INC. FOR THE BALDWIN RESERVOIR 2 & 3 REPAIR PROJECT AS COMPLETE AND AUTHORIZE THE FINAL PAYMENT TO BE MADE IN ACCORDANCE WITH THE CONTRACT DOCUMENTS Recommendation: Approve SUMMARY On December 6, 2011, the City Council awarded a contract to Ace Restoration and Waterproofing, Inc. in the amount of $768,512 for the Baldwin Reservoir 2 & 3 Repair Project which included a (5%) contingency. The terms and conditions of this project have been complied with and the work has been performed to satisfaction for a total project cost of $776,327.14. This amount reflects the original contract amount of $768,512 plus five (5) contract change orders totaling $7,815.14, or 1% above the original contract amount. It is recommended that the City Council accept all work performed by Ace Restoration and Waterproofing, Inc. as complete and authorize the final payment to be made in accordance with the contract documents, subject to retention of$77,632.71. DISCUSSION The Public Works Services Department manages the municipal water system for the City of Arcadia. As a part of the water system there are seventeen (17) water storage reservoirs which hold the City's 44 million gallon reserve water supply. The Baldwin Reservoir Facility was built in 1962 and 1966 and consists of two (2) partially buried rectangular concrete reservoirs that hold a combined capacity of 9.3 million gallons, or 22.8% of the City's total water supply storage. The Baldwin Reservoir Facility is a vital link in the City's water supply system by providing the main water supply for the west side of the City (Zone 2) between Colorado Boulevard and Duarte Road. Mayor and City Council June 5, 2012 Page 2 of 3 Seismic inspections are periodically conducted on all City reservoirs to monitor their condition. In 2002 Dive/Corr Inc., an underwater dive consultant who specializes in inspections of water reservoirs, conducted a routine visual inspection for the Baldwin Reservoirs. This inspection revealed cracking in the columns supporting the concrete roof as well as broken concrete around the connection points of the roof to the walls. The cracking that was identified most likely occurred as a result of the Northridge earthquake in 1994. On October 19, 2010, City Council authorized the City Manager to enter into a Professional Services Agreement with Civiltec Engineering, Inc. for structural engineering analysis, technical support, and plans and specifications for the Baldwin Reservoir Facility. Subsequently, on December 6, 2011, City Council awarded a contract for the Baldwin Reservoir 2 & 3 Repair Project to Ace Restoration and Waterproofing, Inc. in the amount of $768,512 that also included a 5% contingency, totaling $806,938. Work on the Baldwin Reservoir 2 & 3 Repair Project consisted of carbon fiber reinforcement of interior columns, concrete repair of roof beams, installation of shear anchors to stabilize the concrete roof, repair of damaged concrete shear keys, the removal and replacement of deteriorated stainless steel railings, and miscellaneous metalwork. Work was completed in accordance with contract documents. Since the project design and work scope were prepared by reviewing as-built drawings and divers photographs, while the reservoirs remained in service, modifications to the work scope during construction were required to address actual field conditions. The Contractor, Engineer, and Project Staff worked throughout the project to identify areas for cost savings and areas requiring additional attention. As a result, several change orders were made to the original contract. Some of the change orders reflect a savings and some reflect a cost increase to the project. The following summary reflects these changes: CCO # Description Amount 1. Deduct unneeded epoxy injection and column patching <$ 2,102.62> and provide additional x-ray reinforcement location services for anchor work. 2. Seal above ground leaks along south wall of reservoir 2 $ 6,428.00 3. Provide additional support and repair additional spall $19,213.29 damage to concrete beams. 4. Stabilize soft mushy section of parking area prior to $ 800.00 paving. 5. Balance change order to account for actual quantities <$16,523.53> completed. Total Change Orders $ 7,815.14 Mayor and City Council June 5, 2012 Page 3 of 3 It is recommended that the City Council accept all work performed by Ace Restoration and Waterproofing, Inc. as complete and authorize the final payment to be made in accordance with the contract documents subject to retention of $77,632.71. This amount reflects the original contract amount of $768,512 plus five (5) contract change orders totaling $7,815.14, or 1% above the original contract amount, for a total contract amount of$776,327.14. ENVIRONMENTAL IMPACT This project consists of minor alteration of an existing public utility system with no expansion of the system and therefore qualifies as a Class 1 categorical exemption per Section 15301(b) of the California Environmental Quality Act. Since this project is partially funded through an EPA grant, a Finding of No Significant Impact (FONSI) was also filed and approved for this project. FISCAL IMPACT Funds in the amount of $938,000 have been budgeted as a part of the FY 2009-10 Capital Improvement Program for the Baldwin Reservoir 2 & 3 Repair Project. In addition, grant funding from the US Environmental Protection Agency (EPA) in the amount of $242,500 has been authorized for reimbursement of this project and will be repaid to the Water Fund upon receipt. RECOMMENDATION 1. Accept all work performed by Ace Restoration and Waterproofing, Inc. for the Baldwin Reservoir 2 & 3 Repair project as complete. 2. Authorize final payment to be made in accordance with the contract documents, subject to retention of$77,632.71. Approved .y: ._ s. •ominic Lazza - o, City Manager TT:KH:MR Attachment: Location Map — Exhibit "A" r' "`o.' ' CITY OF ARCADIA BALDWIN RESERVOIRS NO. 2 & 3 REPAIR PROJECT Irf / o if D s ° R Skins a Ave. a . Grandview Ave. BALDWIN RESERVOIR NO.2&3 PROJECT LOCATION Sierra aatlaBl, J orange Grove Av — NORTH a DfiVe FOOTHILL JR HS H Foothill Bl. t: J�■AM pi IA 210 FoothIllF _...41______',score 9 �a�h Hunll.�.� v sh a /HALL v ,` v Merro Raif a' 7 a' s Y a m '' a = a' Huntington Dr. rn LL 4 ——,. �— Campus Dr. I ; Duarte Rd• ,Gamin Reel Av:-- I a a 3 L` Longaen Ave. 9J Las Tunas Dr. Live GeA Avg l:::: 1 1 7 Q C/4 P: Road ` Co emotion ark W F‘a LOCATION MAP EXHIBIT A