2725 32ND AVE NE 2018-01-02 MF Import

SCHEDULE B: SMITH ..,LAND LANDFILL / 177065B PHASE 2 CLOSURE DAPROVEMENTS B. Contractor shall verify with Owner that all required permits have been obtained prior to start of excavation work. C. Clearing and Grubbing: Complete applicable Work specified in Section 02200, Site Preparation, prior to excavating. D. Site Topographic Survey: Submit complete landfill topographic survey as specified herein a minimum 5 working days prior to waste excavation within the landfill limits for review by the Engineer. PART 2 PRODUCTS (NOT USED) PART 3 EXECUTION 3.1 GENERAL A. Control water during course of construction as required to accomplish the following requirements: 1. Maintain trench excavations free of water during construction of pipelines and backfilling of trenches. B. Contractor to provide all necessary equipment and materials including sump pumps, piping and fittings, power, and treatment systems to adequately control water in the excavation and discharge in accordance with the following requirements: 1. Contractor may dispose of water collected by dewatering operations into Owner facilities in coordination with Owner. 2. Discharge water in manner that will not cause erosion or flooding, or otherwise damage existing facilities, completed Work, or adjacent property. 3.2 DITCH SEDIMENT EXCAVATION A. After plugging of Outfall No. 005 is complete, excavate sediments from the bottom of the exterior ditch at the locations shown on the Drawings and as listed below: 1. Exterior ditch on east and north side of landfill. 2. Exterior ditch on the west side of landfill for full length to Outfall No. 005. B. Dispose of excavated sediments within the landfill limits. Place in thin lifts not exceeding 6-inch uncompacted (loose) thickness, prior to placement of SEA/177065.A7.19 JULY 16, 2004 02315 2 EXCAVATION