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TerraVista NW,LLC Operation and Maintenance Procedures <br /> Trash or debris in any inlet or Inlet and outlet <br /> outlet pipe pipes free of <br /> blocking more than 1/3 of its trash or debris. <br /> height. <br /> Dead animals or vegetation No dead <br /> that could animals or <br /> generate odors that could vegetation <br /> cause complaints present within <br /> or dangerous gases (e.g., the catch <br /> methane). basin. <br /> Sediment Sediment(in the basin)that No sediment in <br /> exceeds 60 the catch basin <br /> percent of the sump depth as <br /> measured from <br /> the bottom of basin to invert <br /> of the lowest <br /> pipe into or out of the basin, <br /> but in no case <br /> less than a minimum of 6 <br /> inches clearance <br /> from the sediment surface to <br /> the invert of the <br /> lowest pipe. <br /> Structure Top slab has holes larger Top slab is <br /> Damage to than 2 square free of holes <br /> Frame inches or cracks wider than and cracks <br /> and/or Top 1/4 inch <br /> Slab (Intent is to make sure no <br /> material is running <br /> into basin). <br /> ti <br />