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Home My WebLink About2019-12-05; Water Line Break on Avenida Encinas Update; Quiram, VickiTQ the members of the: . 1.,flJY COUNCIL . Date~OA ~CC _:f=:.. CM. COO -µ DCM (3) --1-,, CMWD Board Memorandum Dec. 5, 2019 To: Carlsbad Municipal Water · From: Vicki Quiram, General Mana Via: Scott Chadwick, Executive M na Re: Water Line Break on Avenida ncinas Update Ccarlsbad Municioal Water District Memo ID# 2019139 This memorandum provides updated information related to the repair of the water line break on Avenida Encinas, south of Palomar Airport Road. Background On Nov. 26, 2019, a memorandum (Attachment A) was sent to the Carlsbad Municipal Water District Board of Directors (CMWD Board) with information on a water line break that was responded to on Sunday, Nov. 24, 2019. The break was on a 10" cement mortar lined steel (CMLC) water main that crosses under the railroad tracks and serves the Hilton Garden Inn and the adjacent Solamar Mobile Estates neighborhood on Carlsbad Boulevard. Discussion As reported, CMWD staff was able to continue to serve potable water to the Hilton Garden Inn and residents of the Solamar neighborhood temporarily with a high line. However, the permanent repair was complicated by the depth of the pipe crossing below the railroad, and an extremely difficult location to access without specialty contractor equipment and North County Transit District (NCTD) permits. Staff has continued to work closely with NCTD and on Nov. 26, 2019, deployed a leak detection company to use closed circuit television (CCTV) to video the pipe. On Nov. 27, 2019, the leak detection company provided the results of the video and the location of the water line break was found. Staff determined that the permanent repair would require contracting with an experienced construction contractor and a longer lead time than expected. Staff was keeping Mr. Thomas Lee, Area General Manager of the Hilton Garden Inn, informed on the progress of the permanent repair. Mr. Lee requested that the temporary high line be relocated so that it was not visible to the hotel's visitors. Staff presented Mr. Lee with options and then proceeded to bury and conceal the temporary lines. Attachment B contains pictures of the temporary configuration of the high line that was agreed upon-and completed on Nov. 27, 2019. Carlsbad Municipal Water District 5950 El Camino Real I Carlsbad, CA 92008 I 760-438-2722 Carlsbad Municipal Water District Board of Directors Dec.5,2019 Page 2 On Dec. 3, 2019, staff met with a highly recommended contractor, Cass Arrieta General Engineering Contractors, to determine a scope of work and cost estimate. Next Steps • A scope of work, time frame and cost estimate are expected by Dec. 6, 2019. • Using the scope of work and cost estimates provided by Cass Arrieta General Engineering Contr:actors, staff will work with the Public Works Contract Administration Division to process an emergency contract for repair of the water line, and obtain a project schedule with an estimated completion date. Attachments: A. Memorandum dated Nov. 26, 2019 B. Pictures cc: Elaine Lu key, Chief Operations Officer Celia Brewer, General Counsel Paz Gomez, Deputy City Manager, Public Works Laura Rocha, Deputy City Manager, Administrative Services Cindie McMahon, Assistant General Counsel Amanda Guy, Deputy General Counsel Kristina Ray, Communications and Engagement Director Ken Knatz, District Engineer Babaq Taj, Interim Transportation Director Eric Sanders, Utilities Manager To the members of the: CllYCOUNCIL Date'~CA _!:_CC .!:._ CM ~ COO .l::._ DCM (3) _.:t=,_ Nov.26,2019 CMWD Board Memorandum To: . Carlsbad Municipal Water Dist · t Board of Directors From: Vicki Quiram, General Manage Via: Scott Chadwick, Executive Ma ag Re: Water Line Break on Avenida Attachment A Ccarlsbad Municipal Water District Memo ID# 2019136 This memorandum provides informatioh related to the repair of a water line break on Avenida Encinas, south of Palomar Airport Road. Background On Sunday, Nov; 24, 2019, at 10:30 a.m., staff responded to a report of a water line break. Attachment A shows the approximate location of the break and the location of the 10" asbestos cement water main that crosses under the railroad tracks and serves the Hilton Garden Inn on Carlsbad Boulevard and the adjacent Solamar Mobile Estates neighborhood. Attachment B shows a picture of the incident. North County Transit District (NCTD) was contacted immediately and responded on-site to grant staff access to the site. Discussion Carlsbad Mu~icipal Water District's (CMWD) system is designed with redundant water lines, allowing staff to isolate the broken portion of the water main and quickly continue to serve· potable water to the Hilton Garden Inn and residents of the Sola mar Mobile Estates. Until the broken main is completely repaired, a combination of permanent lines and staff-installed above- ground temporary lines are providing domestic water and fire service to the Hilton Garden Inn and Solamar Mobile Estates. While staff does not anticipate any problems, the City of Carlsbad's Fire Battalion Chief and North County Dispatch have been notified ofthe situation. Hilton Garden Inn personnel and mobile estate residents have also been provided with emergency phone numbers to contact if there are any concerns. Next Steps • Continue to work closely with NCTD • · Deploy a leak detection company to videotape the pipe and assess the location and extent of damage on Tuesday, Nov. 26, 20~9 • Hire a contractor with the capability and equipment to make the necessary repairs due to the location, which is in an extremely difficult area for city staff and equipment to access. Carlsbad Municipal Water District 5950 El Camino Real I Carlsbad, CA 92008 I 760-438-2722 Carlsbad Municipal Water District Board of Directors Nov. 26, 2019 Page 2 Attachments: A. Location Map B. Picture · cc: Elaine Lu key, Chief Operations Officer Celia Brewer, General Counsel Paz Gomez, Deputy City Manager, Public Works Laura Rocha, Deputy City Manager, Administrative Services Michael Calderwood, Fire Chief Cindie McMahon, Assi.stant General Counsel Kristina Ray, Communications and Engagement Director Babaq Taj, Interim Transportation Director Amanda GLiy, Deputy General Counsel Ken Knatz, District Engineer Eric Sanders, Utilities Manager 0 N A water Leak/ Main Isolation Potable Main Reclaimed . h _ 300 feet 1 me - Attachment B