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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 tt <br />Electrical, telephone and gas <br />For electric, telephone, and natural gas systems, settlement can be <br />Approved as submitted <br />❑ Resubmit as noted <br />lines. <br />accommodated by the use of additional wire lengths or flexible <br />piping. <br />Light fixtures and similar features shall either be finished above the <br />underlying gas barrier or, if penetrating the gas barrier, be internally <br />sealed and booted to the barrier laver to preclude intrusion of landfill <br />gas. Seal conduit at building entry to prevent landfill gas leaks. <br />Ensure interior of conduit is sealed as well. <br />Pavements (concrete and/or <br />Subgrade reinforcement (such as a geotextile or geogrid material) <br />Approved as submitted <br />asphalt) for roadways, <br />may be used to minimize areas of localized, uneven settlement. <br />O Resubmit as noted <br />parking lots and sidewalks. <br />Pavements should be designed to accommodate settlement at <br />boundary conditions to pile -supported buildings. <br />Penetrations below landfill cover sections in paved areas will not be <br />allowed without appropriate procedures to address health and safety <br />and repair. <br />A construction quality assurance plan shall detail pavement <br />permeability testing procedures. Install phased active landfill gas <br />controls including perforated pipes in gravel filled trenches <br />connected to header pipes and a vacuum source. The perforated <br />pipes and gravel bed would be located beneath the pavement. The <br />phased active landfill gas controls will be installed continuously <br />throughout developed areas, below pavement, open space and <br />buildings. <br />Quarterly monitoring with a hand held sensor would trigger repair of <br />pavement cracks if methane concentrations above 500ppm were <br />detected. Routine inspection of paved areas is required to identify <br />and repair areas of pavement cracking or locations where required <br />landfill cover ilia), be compromised. <br />Buildings <br />Potential light structures with <br />If design of structures can address seismic stability concerns, light <br />0 Approved as submitted <br />shallow foundations. <br />structures with shallow foundations would be allowed. <br />0 Resubmit as noted <br />City / Ecology Development Review Checklist <br />Exhibit D Page 10 of 13 <br />M M M r- M M M M M M i M M M r M M M Ii <br />