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Port Gardner Storage Facility Volume 7 Attachment O <br /> Page 20 <br />CITY OF EVERETT ⋅ 3200 Cedar Street ⋅ Everett, WA 98201 ⋅ (425) 257-8800 ⋅ Fax (425) 257-8882 <br /> <br />The panels listed and all equipment shown on drawing Y-00-5001 are all new. <br />Q100 – Dwgs D-30-2001, D-30-2004, and D-30-2007 call out an existing 30” RCCP line <br />running east-west along the north side of Area 30. Throughout the civil drawings this <br />same line is referred to as a 30” CCP line. As-built drawing B-9017 calls out a 30” <br />RCCP line at this same location. <br />a. We assume these two lines are one and the same. Please confirm. <br />b. Please advise if this existing line is a CCP line or an RCCP line. <br />a. Yes, the two lines are the same. <br />b. The existing 30" pipe running east-west along the north side of Area 30 is likely <br />CCP as indicated on Volume 7, as-built B-9017 Note 5. The pipe is also indicated <br />as 30" RCCP on as-built B-9025 so there is some uncertainty in the material. <br />Assume CCP pipe. <br />Q101 - Note 1 on dwg D-30-3006 indicates “Drill and tap before welding. A ¼” hole for <br />air-soap tests. Plug weld hole on successful completion of the joint tests. Perform joint <br />tests as specified.” Our plan is to plug the CCP/RCCP and only test the new connection <br />with air there. Are any cleaning and/or inspections required to confirm this existing 30” <br />CCP/RCCP line running east-west along the north side of Area 30 is acceptable for re- <br />use? <br />The pipeline was jetted, dewatered, and cleaned of large debris as part of the <br />recently completed Demolition Package (2024). The pipeline interior wall, while <br />rough, was found to be serviceable for its intended uses for the PGSF. <br />Q102 - With regards to the same existing 30” CCP/RCCP line running east-west along <br />the north side of Area 30, notes 4 & 5 on dwg D-30-3006 indicate “Provide field applied <br />cement mortar lining (CML) in accordance with AWWA C602 and specification section <br />400524” and “Provide field applied cement mortar coating (CMC) in accordance with <br />AWWA C602 and specification section 400524, or heat shrink wrap and fillet per section <br />099636” respectively. <br />a. What is the length of pipe requiring coating per these notes? b. How far down the <br />pipe do we take the coating and/or shrink wrap? <br />Apply the coating as required to achieve 6" minimum overlap with the existing <br />coating, as indicated in the detail. <br />Q103 - Detail 1/D-30-3006 implies that the existing 30” RCCP is basically a carbon steel <br />pipe encased in concrete (shown in orange below) however we understand RCCP is <br />usually reinforced by rebar. Is this detail applicable to both CCP and/or RCCP pipes? <br />This detail is applicable for CCP. If the pipe is found to be RCCP during <br />construction, additional provisions may be required. <br />Q104 - Note 6 on Sheet 222 calls for repairing existing cracks. Will this be covered <br />under bid item #30 – Allowance for Concrete Repairs, since no quantities are known?