NR 120.18(1)(c)(c) The department may provide cost-share up to 100% to replace best management practices eligible in accordance with s. NR 120.186 (4). NR 120.18(1)(d)(d) The cost-share rates for best management practices under existing cost-share agreements may be amended to use the rates identified in this section. NR 120.18(1)(e)(e) The maximum state cost-share rates shall be reduced by 50% for landowners of critical sites when a cost-share agreement is signed after the period of cost-sharing availability for critical sites has ended. NR 120.18(1)(f)(f) The following conditions further specify eligibility criteria for cost-share reimbursements under this section: NR 120.18(1)(f)1.1. Wildlife habitat re-creation associated with implementation of contour farming, contour strip-cropping and field strip-cropping has a maximum state cost-share rate of 70%. NR 120.18(1)(f)2.2. For the best management practices under s. NR 120.14 (16), riparian buffers, and s. NR 120.14 (6), grassed waterways, a single payment in addition to installation costs may be made in accordance with the following: NR 120.18(1)(f)2.c.c. Payments under this subdivision are eligible only for acreage upon which a commodity crop was harvested in at least 2 of the 5 years prior to the signing of the cost-share agreement. The 2 years need not be consecutive if separated by non-grain portions of a normal crop rotation. NR 120.18(1)(f)3.3. Cost-share payments for high residue management systems may not be made for more than a total of 6 years. NR 120.18(1)(f)4.4. Cost-share payments for cropland protection cover (green manure) may not be made for more than a total of 3 years. NR 120.18(1)(f)5.5. Flat rates identified under par. (g) may be used in lieu of calculating cost-share amounts. NR 120.18(1)(f)6.6. Cost-share payments for nutrient management may not be made for more than a total of 3 years. NR 120.18(1)(f)7.7. Cost-share payments for pesticide management may not be made for more than a total of 3 years. NR 120.18(1)(f)8.8. The maximum amount cost-shared for leases of manure storage tanks shall be 70% of the down payment and lease cost of the tank during the grant period of the watershed project. NR 120.18(1)(f)9.9. A governmental unit may establish a flat rate for cost-sharing critical area stabilization in order to simplify the administration of cost-share funding for this best management practice. The flat rate shall be calculated based on the cost-share rate, up to 70%, and the average cost of the practice. NR 120.18(1)(g)(g) Counties may use the following state cost-share rates per acre in lieu of the state cost-share percentage listed in this section. NR 120.18(1)(g)5.5. $25 per acre per year for cropland protection cover (green manure). NR 120.18(1)(g)6.a.a. Three strand barbed wire, steel or wooden post at a flat rate of $5.00 per linear rod. NR 120.18(1)(g)6.c.c. Two strand electric, fiberglass, steel or wooden post and insulators at a flat rate of $3.00 per linear rod. NR 120.18(1)(g)6.d.d. Fiberglass posts, high tensile wire at a flat rate of $7.50 per linear rod. NR 120.18(2)(a)(a) Least cost. A governmental unit may set cost-share rates up to the maximum amount specified for the practice in this section. Where 2 or more practices are of equal effectiveness in reducing pollutants, the cost-share rate shall be based on the least cost practice provided the practice is consistent with the use and management of the land in question. The department may approve, in writing, cost-sharing for a best management practice that is not the least cost if the practice is more cost effective. The department shall approve the cost-share agreement if the best management practices are the least-cost alternatives to control the nonpoint sources or if the practices provide greater water quality improvement or habitat enhancement than the least-cost alternative.