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r� ■r rr rr rr r �r rr r� r r■� �r rr �r rr rr r �r .r <br />CONSENT DECREE EXHIBIT D <br />EVERETT LANDFILUTIRE FIRE SITE <br />Development Components <br />Environmental Requirements <br />City Review Comments <br />Ecology Review <br />and submittal reference <br />Comments <br />ie page, sheet # <br />Following construction, all developed areas of the landfill must be <br />covered with pavement, buildings, or clean soil underlain by <br />hydraulic barrier. <br />Site Infrastructure <br />Water lines. <br />Utility trenches or corridors below developed area cover elevation <br />Approved as submitted <br />will be lined with a geotextile and backfilled with clean soil, to <br />Resubmit as noted <br />allow maintenance without additional health and safety requirements <br />for contaminated materials. <br />Construction methods and materials to accommodate expected <br />settlements are required. <br />Seal entry into buildings or enclosed structures including utility <br />manholes/vaults to prevent landfill gas leaks. Backfill trench with <br />low permeability soil where utility line leaves property. <br />Sanitary sewer lines. <br />For sanitary sewer and storm drainage systems, watertight manholes <br />O Approved as submitted <br />using gasketed riser sections and rubber boot connections are <br />O Resubmit as noted <br />recommended. IIDPE piping is recommended. Additional measures <br />to mitigate settlement include flexible telescoping sleeves and <br />flexible connections at vaults and interfaces with buildings, and pipe <br />hangers beneath pile supported structures. <br />Seal entry into buildings or manholes to prevent landfill gas leaks. <br />Backfill trench with low permeability soil where utility line leaves <br />property. <br />Storm sewer lines. <br />Stormwater will not be allowed to infiltrate into the landfill. <br />O Approved as submitted <br />Measures described above for sanitary sewer and storm drainage <br />❑ Resubmit as noted <br />systen►s will be taken. All stormwater will be collected for oft=site <br />discharge. <br />Seal entry into catch basins and manholes to prevent landfill gas <br />leaks. Backfill trench with low permeability soil where utility line <br />leaves property. <br />Manholes and maintenance <br />Vaults will be designed with water and gas tight joints and will be <br />❑ Approved as submitted <br />access. <br />clearly labeled for necessary confined space entry procedures per <br />Resubmit as noted <br />gas pathway requirements. <br />City / Ecology Development Review Checklist Exhibit D Page 9 of 13 <br />