NR 120.14(5)(c)(c) Standards. Standards from the NRCS field office technical guide are as follows: NR 120.14(6)(a)(a) Description. A grassed waterway is a natural or constructed drainageway or channel which is shaped, graded and established in suitable cover as needed to prevent erosion by runoff waters. This practice shall be implemented using one or more of the standards in par. (c). NR 120.14(6)(b)(b) Conditions. Cost-sharing may be provided for the following: NR 120.14(6)(b)1.1. Site preparation, grading, shaping, filling, establishing temporary and permanent vegetation cover and for subsurface drains necessary for proper functioning of the waterway. NR 120.14(6)(b)2.2. Removal of obstructions necessary to permit installation of an effective system. NR 120.14(6)(c)(c) Standards. Standards from the NRCS field office technical guide are as follows: NR 120.14(7)(a)(a) Description. High residue management systems refer to any tillage and planting system that is designed to reduce soil erosion caused by water or wind. This practice shall be implemented using one or more of the standards in par. (c). These systems include the following: NR 120.14(7)(a)1.1. No-till. The soil is left undisturbed prior to planting. Planting is completed in a narrow seedbed or slot created by the planter or drill. NR 120.14(7)(a)2.2. Mulch-till. The total soil surface is disturbed by tillage prior to planting. Tillage tools such as chisels, field cultivators, disks or sweeps are used.