The CM Consultant shall lead the CM effort to: a. Structural i. Repair of Cracked, Spalled, and Delaminated Concrete ii. Repair Mortar for Floor Slope Correction iii. Concrete Void Injection b. Geotechnical i. Chemical Injection Grouting ii. Negative Side Masonry Coating iii. Installation of Weep Holes iv. Sealing of Pipe Penetrations v. Installation of Drainage Channeling System c. Process Mechanical i. Replacement of Sump Discharge Piping with Cement-Mortar Lined Ductile Iron Piping ii. Riser Valve Counterweight Removal, Rehabilitation and Re-Installation iii. Shaft and Riser Cap Air Relief Valve Assembly iv. Installation of Leak Collection System d. Coatings i. Wax Coatings ii. Specialty Epoxy Coatings iii. Bridge Crane Coatings iv. Pipe Support Coatings v. Coatings for Riser Valve Counterweights e. Cathodic Protection i. Galvanic Cathodic Protection systems will be installed in the north and south walls in the lowermost chamber of Shaft 15B. f. Electrical i. Improvements to Electrical Conduit and Panels g. Operation, Maintenance, and Activities During Tunnel Shutdown i. Removal of Mineral Accumulation from Wall Surfaces, Weep Holes and Enclosed Piping Systems ii. Stainless Steel Cleaning iii. Shock Treatment Between Valves iv. Maintaining Flow to Avoid Microbiologically Induced Corrosion (MIC) v. Internal Inspection of Piping vi. Disinfection/Cleaning of Pipelines Back to Tunnel
