Laserfiche WebLink
City of Everett 01 11 00 - 7 <br />Port Gardner Storage Facility – Facility Construction Package WO# UP-3525 <br /> <br />01 11 00 - 7 SUMMARY OF WORK <br />Category 2: Sensitive information <br />Category 2: For official use only / disclosure permissible by law. <br />2) Process Mechanical <br />a) Routing and installation of 4-inch diameter process water piping <br />for conveyance of plant water (2W) to water cannons (item b). <br />b) Installation of three pedestal mounted pressurized water <br />cannons around the perimeter of the Area 35 basin. <br />3) Electrical <br />a) Routing power for proposed instrumentation. <br />4) Instrumentation and Controls <br />a) Installation and integration of the following Area 30 instrument <br />types into the site control system. <br />1. Radar level <br />2. Level float switches <br /> <br />8. Area 40 Stormwater Diversion and Treatment <br />a. Area 40 improvements include two primary features 1 – stormwater <br />diversion structure and 2 - stormwater treatment system. The work <br />associated with each of these items is outlined in Sections 1 and 2 <br />below. <br />1) Project work at the stormwater diversion structure includes <br />converting the existing 40-foot diameter gravity thickener to an <br />above grade vault for housing 48-inch and 18-inch diameter <br />stormwater piping. These modifications include structural, process <br />mechanical, instrumentation and controls, and site civil work. <br />a) Structural <br />1. Structural work includes selective demolition of the gravity <br />thickener to create penetrations for the 48-inch diameter and <br />18-inch diameter stormwater pipes to pass through the <br />thickener walls. Additional demolition is required to create an <br />opening in the structure for a raised stairway providing <br />access to the vault. <br />2. Installation of two new pile supports within the diversion <br />structure. <br />3. Installation of pipe supports for the 48-inch and 18-inch <br />diameter stormwater pipelines. <br />4. Installation of stairways for vault ingress and egress and <br />within the vault for accessing all areas within the structure. <br />5. Modification of the diversion structure drain by raising the <br />existing pipe to the new floor level, filling the center sump <br />with concrete, and connecting the existing drainpipe to the <br />new site stormwater drain. <br />6. Connecting the existing drain (#4 above) to the site storm <br />drain system and connecting the existing scum box drain to <br />the site storm drain system.