(a) As required in Section 937.01(d), whenever the vegetation and topography are to be disturbed, such activity must be in conformance with PA DEP 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 York County Conservation District.
(b) If the State NPDES regulation (Chapter 102) thresholds requiring a written erosion and sedimentation plan do not apply, 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.
(c) It is extremely important that strict erosion and sedimentation 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:
(1) Areas proposed for infiltration BMPs shall be protected from sedimentation and compaction during the construction phase, so as to maintain their maximum infiltration capacity.
(d) Fencing for sedimentation basins or traps must comply with Section 937.09(c)(1).J.
(e) 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 assue the rate and volume of runoff leaving the site is controlled for the 2-,5-, and 10-year frequency storms. All calculation methodology shall be in accordance with Sections 937.03 through Section 937.10.
(Ord. 44-2022. Passed 8-16-22.)