Brown and Caldwell, Inc. 9/20/2023

PGSF WMVD Storm and Combined Sewer Design Scope of Work 08-25-2023 7 of 41 Category 2: Sensitive information Category 2: For official use only / disclosure permissible by law. Everett Responsibilities • Provide available information and GIS database(s) • Attend site visits • Open existing maintenance holes Meetings • None anticipated Work Products • None anticipated Phase 220 – Condition Assessment (CO-3, CO-8) Objective: To plan for, complete, and review obtained conditions of the CO-3 and CO-8 lines Activities/Approach: CO-3: Review CCTV video obtained by City of Everett crew. CO-8: 1. Develop an access plan, identifying access locations, traffic control needs, and supporting information. 2. Complete CCTV inspection 3. Complete handheld thickness measurements every 50 feet at crown, invert and both springlines. Task Assumptions: • City of Everett will coordinate with others CCTV inspection of the CO-3 line and provide video to BC. • CO-8 inspection work to occur after Phase 240.001 modeling work. Inspection plans may be modified If modeling concludes and City agrees to smaller inner diameter than 48-inches. • City ROW permit will be required for traffic control for access to CO-8 line along WMVD between California Steet and 25th St. • Manned access is available on at least one end of the existing pipeline. Everett Responsibilities • City will complete CCTV inspection of CO-3 line and provide video to BC. • City to provide existing inspection report on the CO-8 line. • City to provide record drawings of existing watermain for CO-8. Meetings • CO-8 Inspection plan review meeting Work Products CO-3: Information for use in Phase 250. CO-8: 1. Inspection Plan 2. Traffic Control Plans 3. Right-of-Way permit (invoiced in Phase 330) 4. CCTV inspection results