(2)__No more than 25% longer than the culvert being replaced; and

(3)__No longer than 75 feet.

Ancillary culverting activities, including excavation and filling, are included in this exemption.__A person repairing, replacing or maintaining an existing culvert under this paragraph shall ensure that erosion control measures are taken to prevent sedimentation of the water and that the crossing does not block fish passage in the water course; or

i.B.__A permit is not required for those aspects of a development proposal that have been reviewed and approved by the Department of Environmental Protection if the activities are an allowed use within the subdistricts for which they are proposed.__Developments covered by this exemption include those subject to review within the unorganized and deorganized areas under the following provisions of Title 38:

(1)__The water pollution control laws, sections 411 to 424;

(2)__The natural resources protection laws, sections 480-A to 480-Z;

(3)__The site location of development laws, sections 481 to 490;

(4)__Performance standards for excavations, sections 490-A to 490-M;

(5)__Performance standards for quarries, sections 490-W to 490-EE;

(6)__The oil discharge prevention laws, sections 541 to 560;

(7)__The underground oil storage laws, sections 561 to 570;

(8)__The hydropower permit laws, sections 630 to 637; and

(9)__The waste management laws, sections 1301 to 1319.