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1. Required Notice: Two working day notice prior to initial site work involving drainage and <br />installation of temporary water retention, detention and siltation control. <br />2. Inspection Details: To verify that temporary sedimentation and erosion control has been <br />installed in accordance with approved plans and these standards. Subsequent inspections <br />may be required at the discretion of the County Engineer as necessary to ensure <br />continued proper operation and maintenance of temporary sedimentation and erosion <br />control for the duration of construction. <br />C. Utility and Storm Drainage Installation: <br />1. Required Notice: Two working day notice prior to trenching and placing of storm <br />drainage systems. <br />2. Inspection Details: To verify that underground storm drainage facilities, including but not <br />limited to pipes, catch basins, and manholes have been constructed in accordance with <br />the approved plans and these standards. Inspection shall take place prior to backfill. If <br />cover is installed in stages, multiple inspections shall be scheduled as necessary to ensure <br />that all facilities receive inspection. <br />D. Utility and Storm -Drainage Backfill and Compaction: <br />1. Required Notice: Two working day notice before backfill and compaction of storm <br />drainage systems. <br />2. Inspection Details: Verify that backfill for all trenching within the roadway, existing right of <br />way, and future right of way is in compliance with the approved plans and these <br />standards. <br />E. Subgrade Completion: <br />1. Required Notice: Two working day notice at stage that underground utilities and roadway <br />grading are complete. <br />2. Inspection Details: To verify that the subgrade has been constructed and graded in <br />compliance with the approved plans and these standards. If the subgrade and surfacing is <br />installed in stages, multiple inspections shall be scheduled as necessary to ensure that all <br />subgrade has been inspected. <br />F. Crushed Surfacing Placement: <br />1. Required Notice: Two working day notice. <br />2. Inspection Details: To verify that crushed surfacing has been placed and compacted in <br />accordance with the approved plans, and these standards. If the scope of the project is <br />Title 12 Kittitas County Code I Draft No. 5 — Working Draft forAdoption 1011212023 <br />10C <br />