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III. SEDIMENT * Yes No B .NIPs <br /> Drainage Structures: <br /> 8 ) . Are culverts with functional riser/sinker boards installedLi B 1 <br /> on appropriate lateral and side ditch connections ? <br /> 9) . Are the culvert structures properly installed and maintained ? E, 0 B 1 <br /> Ditch Infrastructure <br /> 10 ) . Are there settling basins or sumps to trap sediment at field ditch ! 0 B2 <br /> connections to laterals and other main canals prior to discharge ? <br /> 11 ) . Are these basins maintained at an appropriate frequency ? 0 B2 <br /> 12) . Are ditches and canals constructed with proper side I] B3 <br /> bank stabilization methods ; i . e . sloping or shoring ? <br /> Ditch Rlanaa ement: <br /> 13 ) . Is vegetative cover maintained near canal or ditch banks ? 0 0 134 , B5 <br /> 14) . Are there vegetative buffer strips maintained near environmentally 0 B4 <br /> sensitive lands ? <br /> 15 ) . Are measures taken to prevent side-bank erosion due to the flow 0 0 B8 <br /> of water directly down the sides of the banks (i . e . berms) ? <br /> 16 ) . Are riprap, concrete headwalls, sandbags, or wingwalls 0 0 B9 <br /> used to protect canal banks from erosion? <br /> Bed/Furro}v Rlanagetnent: <br /> 17) . Are water furrows properly shaped and grassed to prevent erosion, 0 0 13101 Al -4 <br /> rutting, and other problems that may result in excess sediment <br /> transport off= site ? <br /> 18 ) . Is a narrow herbicide band maintained with a width appropriate 0 0 1311 <br /> for the size of the trees? <br /> 19) . Are vegetated water furrows, drain tiles, and settling basins used 0 0 BIO- 14 <br /> to insure minimum movement of sediment to off-site water bodies ? <br /> Construction Activities: <br /> 20) . Are measures taken to prevent erosion (sediment loss) during 0 0 BIO, 15 <br /> earth-working activities (i . e . , hay bales or ribbon turbidity barriers) ? <br /> 3 <br />