shall assume no practicable ultimate alternative exists. responsibility for These activities operation and shall minimize maintenance of the builtupon surface required controls as area and avoid outlined in Rule channelizing .0104 of this stormwater; (I) Subchapter; No National (G) A minimum 100 Pollutant Discharge foot vegetative Elimination System buffer shall be (NPDES) permits required for all new shall be issued for development landfills that activities that discharge treated exceed the low leachate; density (ii) Critical Area Nonpoint requirements as Source and Stormwater specified in Pollution Control Criteria: (3)(b)(i)(A) (A) Low Density and Sub-Item Option: new (3)(b)(ii)(A) of this development shall Rule, otherwise a be limited to either minimum 30 foot no more than one vegetative buffer for dwelling unit of development shall single family be required along all detached residential perennial waters development per indicated on the acre (or 40,000 most recent versions square foot lot of U.S.G.S. excluding roadway 1:24,000 (7.5 right-of-way), or 12 minute) scale percent builtupon topographic maps or area for all other as determined by residential and local government nonresidential studies. Nothing in development; this Rule shall stand stormwater runoff as a bar to artificial from the streambank or development shall shoreline be transported by stabilization; vegetated (H) No new conveyances to the development shall maximum extent be allowed in the practicable; buffer; water (B) High Density dependent Option: if new structures, or other development structures such as exceeds the low flag poles, signs, density and security lights, requirements which result in only specified in de minimus SubItem increases in (3)(b)(ii)(A) of this impervious area and Rule, then public projects such engineered as road crossings stormwater controls and greenways may shall be used to be allowed where control runoff from
shall assume ultimate responsibility for operation and maintenance of the required controls as outlined in Rule .0104 of this Subchapter; (G) A minimum 100 foot vegetative buffer shall be required for all new development activities that exceed the low density requirements as specified in (3)(b)(i)(A) and Sub-Item (3)(b)(ii)(A) of this Rule, otherwise a minimum 30 foot vegetative buffer for development shall be required along all perennial waters indicated on the most recent versions of U.S.G.S. 1:24,000 (7.5 minute) scale topographic maps or as determined by local government studies. Nothing in this Rule shall stand as a bar to artificial streambank or shoreline stabilization; (H) No new development shall be allowed in the buffer; water dependent structures, or other structures such as flag poles, signs, and security lights, which result in only de minimus increases in impervious area and public projects such as road crossings and greenways may be allowed where no practicable alternative exists. These activities shall minimize builtupon surface area and avoid channelizing stormwater; (I) No National Pollutant Discharge Elimination System (NPDES) permits shall be issued for landfills that discharge treated leachate; (ii) Critical Area Nonpoint Source and Stormwater Pollution Control Criteria: (A) Low Density Option: new development shall be limited to either no more than one dwelling unit of single family detached residential development per acre (or 40,000 square foot lot excluding roadway right-of-way), or 12 percent builtupon area for all other residential and nonresidential development; stormwater runoff from the development shall be transported by vegetated conveyances to the maximum extent practicable; (B) High Density Option: if new development exceeds the low density requirements specified in SubItem (3)(b)(ii)(A) of this Rule, then engineered stormwater controls shall be used to control runoff from
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