The URL can be used to link to this page

Home My WebLink About2017-11-07; City Council; ; Adopt a Resolution approving a Collectible Work Authorization with Southern California Gas Company to remove a 12-inch gas line adjacent to the Vista/Carlsbad Interceptor Sewer, Reach VCllB, Project No. 3886CA Review (i) S~~ff R~port Meeting Date: To: From: Staff Contact: Subject: Nov. 7, 2017 Mayor and City Council Kevin Crawford, City Manager Terry Smith, Engineering Manager Terry.Smith@carlsbadca.gov or 760-603-7354 Adopt a Resolution approving a Collectible Work Authorization with Southern California Gas Company to remove a 12-inch gas line adjacent to the Vista/Carlsbad Interceptor Sewer, Reach VCllB, Project No. 3886. Recommended Action Adopt a Resolution approving a Collectible Work Authorization with Southern California Gas Company to remove a 12-inch gas line adjacent to the Vista/Carlsbad Interceptor Sewer, Reach VCllB, Project No. 3886. Executive Summary Construction of the Agua Hedionda Lift Station and Vista/Carlsbad Interceptor Sewer, Reaches VCllB -VC15 (Project), requires removing a 12-inch Southern California Gas Company (SoCal Gas) high-pressure gas line to accommodate the new sewer infrastructure. SoCal Gas has notified the City of Carlsbad that additional funding, in the amount of $730,000, is necessary to address unforeseen issues and to complete the gas line construction. The City of Carlsbad is responsible for 30.9 percent of these costs or an amount not to exceed $225,570. Discussion The $45 million Project includes improvements to reaches VCllB through VC15 of the interceptor sewer system, including the Agua Hedionda Sewer Lift Station, a utility bridge supporting the sewer across Agua Hedionda Lagoon and approximately 2 miles of sewer pipeline. Ownership in these sewer facilities is shared between the City of Carlsbad and the City of Vista since both cities share capacity rights in the system. The sewer lift station and bridge construction, which is approximately 75 percent complete, requires the removal of a 12-inch gas line owned by SoCal Gas and located within the North County Transit District (NCTD) railroad right-of-way. On March 24, 2015, the Carlsbad City Council adopted Resolution No. 2015-068 approving a Collectible Work Authorization (Agreement) between the City of Carlsbad and SoCal Gas to have SoCal Gas relocate the 12-inch gas line that was in conflict with the city's sewer construction. The cost for the gas line construction and all associated activities by SoCal Gas was initially estimated to be $2,848,350. Since SoCal Gas has senior easement rights in this area, the City of Carlsbad is responsible for paying the cost of the gas line relocation. November 7, 2017 Item #5 Page 1 of 8 SoCal Gas has completed the relocation of the 12-inch gas line and restored operation of the pipeline. However, several hundred feet of the original gas pipeline still needs to be removed and abatement of the pipe coating performed before the pipe can be hauled away for proper disposal. SoCal Gas has notified the City of Carlsbad that additional funding, in the amount of $730,000, is necessary to address unforeseen issues that occurred during construction. These issues include a conflict with the existing 42-inch sewer that required alignment changes to the gas line, alignment changes to avoid potential damage to tree roots, remobilization to complete the remaining gas line removal work and additional administrative costs by SoCal gas to secure approvals from NCTD resulting from these changes. The additional costs of the gas line removal will be shared with the City of Vista as a cost to the Agua Hedionda Sewer Lift Station and Vista/Carlsbad Interceptor Sewer Project. Fiscal Analysis The City of Carlsbad's gas line removal cost share is 30.9 percent of the total cost and was addressed in a Project Agreement between the City of Carlsbad and the City of Vista. The Carlsbad City Council approved this agreement at a meeting held Feb. 10, 2015, per Resolution No. 2015-039. The total additional cost is $730,000, of which Carlsbad is responsible for 30.9 percent for an amount not to exceed $225,570. The City of Carlsbad will incur these costs up front and will be reimbursed by the City of Vista for Vista's 69.1 percent share or approximately $504,000. Additional funding for the gas line removal is available in the current Capital Improvement Program for the Vista Carlsbad Interceptor, Reach VCllB, Project No. 3886. A summary of current and projected project costs is shown in the table below: VISTA/CARLSBAD INTERCEPTOR SEWER, .REACH VC11B, CIP NO. 3886 Current Appropriation -Vista/Carlsbad Interceptor Sewer, Reach VCllB, CIP $9,463,000 No. 3886 Current Expenditures/Encumbrances -Vista/Carlsbad Interceptor Sewer, Reach $8,599,616 VCllB, CIP No. 3886 TOTAL AVAILABLE VISTA/CARLSBAD INTERCEPTOR SEWER REACH VC11B, CIP $863,384 NO. 3886 VISTA/CARLSBAD INTERCEPTOR SEWER, REACH VC11B, PROJECT NO. 3886 SoCal Gas Collectable Work Authorization Requested Funds $730,000 Remaining Administrative Costs (Estimated) $30,000 TOTAL ESTIMATED REMAINING PROJECT COSTS $760,000 REMAINING BALANCE AFTER PROJECT NO. 3886 $103,384 ADDITIONAL APPROPRIATION NEEDED $0 Next Steps Construction on the Project will continue and is expected to be complete by spring of 2018. November 7, 2017 Item #5 Page 2 of 8 Environmental Evaluation (CEQA) A Mitigated Negative Declaration (MND} and Mitigation Monitoring and Reporting Program (MMRP} were prepared for the Agua Hedionda Sewer Lift Station, Force Main and Gravity Sewer Replacement Project {PDP 00-02{(}/SP 144{L}/RP 10-26/CDP 10-17 /HDP 10-05/SUP 10-02/HMP 10-03). The MND was adopted by the City Council on Dec. 6, 2011, in compliance with the California Environmental Quality Act {CEQA} Guidelines Section 15074 .. The relocation of the gas line was a component of the project and no further environmental documentation is required per CEQA Guidelines Section 15162. 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. Resolution approving a Collectible Work Authorization with Southern California Gas Company to remove a 12-inch gas line adjacent to the Vista/Carlsbad Interceptor Sewer, Reach VCllB, Project No. 3886. 2. Location Map. 3. Location Map showing the gas line relocation. November 7, 2017 Item #5 Page 3 of 8 RESOLUTION NO. 2017-211 A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF CARLSBAD, CALIFORNIA, APPROVING A COLLECTIBLE WORK AUTHORIZATION WITH SOUTHERN CALIFORNIA GAS COMPANY TO REMOVE A 12-INCH GAS LINE ADJACENT TO THE VISTA/CARLSBAD INTERCEPTOR SEWER, REACH VCllB, PROJECT NO. 3886. EXHIBIT I WHEREAS, on March 24, 2015, City Council approved a Collectable Work Authorization (Agreement) with Southern California Gas Company (SoCal Gas) for $2,848,350 to relocate a 12-inch high pressure gas line owned by So Cal Gas to accommodate the construction of the Agua Hedionda Sewer Lift Station and Reaches VCll -VC 15 of the Vista Carlsbad Interceptor Sewer Project, Project No. 3492 (Project), by adoption of Resolution No. 2015-068; and WHEREAS, the gas line is located within railroad right-of-way that is managed by the North County Transit District (NCTD); and WHEREAS, the SoCal Gas easement has senior rights to City of Carlsbad's sewer easement and Carlsbad is responsible for the cost of the gas line removal; and WHEREAS, it is necessary to remove a 12-inch high-pressure gas line owned by SoCal Gas to construct the Project in the vicinity of the Agua Hedionda Lagoon; and WHEREAS, staff from the City of Carlsbad and SoCal Gas have prepared an Agreement to have the 12-inch gas line removed by SoCal Gas for actual costs in an amount estimated to be $730,000; and WHEREAS, the City Council of the City of Carlsbad, California has determined that it is in the best interest of the city to enter into an Agreement with the Southern California Gas Company for the removal of a 12-inch high-pressure gas line at the Agua Hedionda Lagoon. 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 mayor of the City of Carlsbad is authorized and directed to execute the Collectible Work Authorization between the City of Carlsbad and the Southern California Gas Company for the removal of a 12-inch high-pressure gas line at the Agua Hedionda Lagoon which is attached hereto as Attachment A. November 7, 2017 Item #5 Page 4 of 8 EXHIBIT I PASSED, APPROVED AND ADOPTED at a Regular Meeting of the City Council of the City of Carlsbad on the 7th day of November 2017, by the following vote, to wit: AYES: NOES: ABSENT: M. Hall, K. Blackburn, M. Schumacher, C. Schumacher, M. Packard. None. None. M~4.~ ~L~f zd11/.;_ ~ BARBARA ENGLESON, City Clerk 1 (SEAL) ~ 1~' ,•", r,t.\': ,. November 7, 2017 Item #5 Page 5 of 8 November 7, 2017 Item #5 Page 6 of 8 EXISTING LAGOON BRIDGE LOCATION VC11B -............ ~~ EXISTING AGUA HEDIONOA LIFT STATION LEGEND: -VC11B -VC15 VC1 -VC11A PROJECT NAME ~ . .-..r'III MAP AGUA HEDIONDA LIFT STATION & VISTA/CARLSBAD INTERCEPTOR SEWER REACHES VC11B THROUGH VC15 DRAWN BY: SCOTT EVANS: CARLSBAD U71LITIES DEPT. 1/13/11 C: \U71L/71ES DEPARTMENT\LOCA710N MAPS\AHLS & VC11B-VC15.DWG PROJECT EXHIBIT NUMBER 3492, 3886 & 3949 2 EXHIBIT 2 November 7, 2017 Item #5 Page 7 of 8 AGUA HEO/ONOA LIFT STATION VC12 LOCATION AGUA HEOIONDA LAGOON MAP NOT TO SCALE . \.A ~ .. [ LEGEND: VISTA/CARLSBAD SEWER PROJECT VC11B -VC15 VC1 -VC11A ENC/NA WATER POLLUTION CONTROL FACILITY PALOMAR '~ < PROJECT NAME PROJECT EXHIBIT AGREEMENT WITH SOUTHERN CALIFORNIA GAS COMPANY FOR THE N3u4Mg~~R 3 RELOCATION OF A 12-INCH GAS LINE AT AGUA HEOIONOA LAGOON L. DRAWN BY: SCOTT EVANS: CARLSBAD U11L/17ES DEPT. 1/13/11 C: \U11L/11ES DEPARTMENT\DESIGN DIVIS/ON\SMITH\VC SEWER\VC11-15_GAS LINE RELOCA110N_LOCA110N MAP.DWG EXHIBIT 3 November 7, 2017 Item #5 Page 8 of 8