(a) Development allowed if requirements met. Development is allowed in the contributing drainage area if the requirements of this section are met.
(b) Stormwater management. All development within the contributing drainage area shall comply with the following storm water requirements.
(1) Nonstructural storm water management practices, such as infiltration and retention of forest, wetlands and associated buffers, undisturbed floodplains, open space, and slopes of 15% or greater, shall be used to the extent practical.
(2) Structural storm water management shall be used only when use of nonstructural storm water management practices is not practical.
(3) Runoff shall be managed in a manner that does not permit direct discharge of storm water into a bog, contributing stream, or 100-foot upland buffer.
(c) Impervious surface limitations. Impervious surface on lots in existence on December 3, 2001 shall be limited to 15% of a lot unless one of the following exceptions applies.
(1) On a lot of one-half acre or less that existed on or before December 3, 2001, impervious surface may be increased to 25%.
(2) On a lot between one-half acre and one acre that existed on or before December 3, 2001, impervious surface on the lot shall be minimized and the total impervious surface may not exceed the greater of 15% or 5,445 square feet.
(Bill No. 3-05; Bill No. 19-05)