1. As required in § 19-301.4., whenever the vegetation and topography are to be disturbed, such activity must be in conformance with PADEP 25 Pa.Code, Chapter 105, rules and regulations, Part I, Subpart C, “Protection of Natural Resources,” Article II, “Water Resources,” Chapter 102, “Erosion Control,” and in accordance with the County Conservation District.
2. It is extremely important that strict erosion and sedimentation control measures be applied surrounding infiltration structures during installation to prevent the infiltrative surfaces from becoming clogged. Additional erosion and sedimentation control design standards and criteria must be applied where infiltration BMPs are proposed shall include the following:
A. Areas proposed for infiltration BMPs shall be protected from sedimentation and compaction during the construction phase so as to maintain their maximum infiltration capacity.
4. The developer shall demonstrate that the post-development hydrograph flows during erosion and sedimentation control phase are less than or equal to the pre-development hydrograph flows to assure the rate and volume of runoff leaving the site is controlled for the two-, five-, and ten-year frequency storms. All calculation methodology shall be in accordance with §§ 19-308 and 19-309.
5. In the event a regulated activity falls under the Chapter 102 thresholds for requiring a written erosion and sedimentation plan and/or NPDES permit, the applicant is still required to provide suitable erosion and sedimentation best management practices to prevent an illicit discharge caused by erosion during a precipitation event.
(Ord. 2022-01, 7/25/2022)