Standardized erosion control matrix

Standardized erosion control matrix. (1) Development and maintenance. (a) The department, acting jointly with the DNR, shall develop and maintain a standardized erosion control matrix that identifies BMPs that, when applied as specified in the matrix, meet the performance standards of this chapter and chs. NR 151 and 216 . (b) The matrix shall address slope erosion and channel erosion and shall identify BMPs that prevent erosion, trap sediment, dissipate flow velocities, and direct the flow of runoff, and that minimize turbidity or sedimentation of surface water caused by land-disturbing construction activities. The matrix may consider a variety of site conditions, including slope steepness and slope length. (2) Review. The department shall regularly review the matrix developed under sub. (1) (a) , or upon request by the DNR. In performing the review, the department shall consult with the DNR, with an association representing a majority of county highway departments in this state, with a trade association representing transportation facility construction contractors who contract with this state, and with a trade association representing a majority of utility service providers in this state. In performing the review, the department shall consider the BMPs and site conditions described in the matrix and any new BMPs as recommended during the review process. (3) Amendments. If changes to the matrix are identified through the review in sub. (2) , the department shall present its recommendations to the directors, or delegated representatives, of the department and DNR. The department shall amend and publish the matrix upon joint approval by the appropriate directors, or delegated representatives, of both agencies. (4) Discontinuation. The matrix shall continue to remain in use unless otherwise determined through joint approval by the appropriate directors, or delegated representatives, of the department and DNR.