2018-02-02_REVISION - C1981019 (9)

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PART H Permit - Page 28 Permit No. COR -030000 If. CHANGES IN THIS GENERAL PERMIT (cont.) K. ?er•►rrs and Conditions SWMP Requirements 1. SWMP Review/Changes: This section now requires that when changes are made to site conditions, the SWMP must be revised immediately, except for some BMP description changes which conditionally may occur within 72 hours. This requirement is included to both ensure that the SWMP be kept accurate and up-to-date, and to clarify that stormwater management at a site typically should be proactive instead of responsive, and be integrated into site management to ensure it is calibrated with those changes. The section was also clarified to state that only changes in site conditions that do not require new or modified BMPs do not need to be addressed in the SWMP. See Part I.D.S(c) of the permit. 2. SWMP Certification: The previous permit was unclear on a requirement that the copy of SWMP that remains at the facility had to be signed in accordance with permit signatory requirements. This requirement has been deleted. The signatory requirement of Purl I. F.1 only applies to the SWMP if it is to be submitted to the Division or to EPA. See Part I,F.1 of the permit. L. Terms and Cond l ni ust-'i I'M I ec ' AT The previous permit required post -storm inspections, but did not specify the timing of inspections. This section now requires that post -storm event inspections generally be conducted within 24 hours of the event. An alternative timeline has been allowed, oral for sites where there are no construction activities occurring following a storm event. For this condition, post -storm event inspections .shall instead be conducted prior to commencing construction activities, but no later than 72 hours following the storm event, and the delay noted in the inspection report. Any exception from the minimum inspection schedule is temporary, and does not eliminate the requirement to perform routine maintenance due to the effects of a storm event, including maintaining vehicle tracking controls and removing sediment from impervious areas, In many cases, maintenance needs will require a more frequent inspection schedule than the minimum inspections required in the permit, to ensure that BMPs' continue to operate as needed to comply with the permit. See Part LD. 6(a) of the permit. M Terms a rd C iti fns In, ;ec o►ts 1. The Winter Conditions Inspection Exclusion section has been modified to include documentation requirements.for this exclusion. See Part I.D.6(a) of the permit, The Inspection Scope has been modified to include the requirement to inspect waste storage areas during inspections conducted in accordance with the permit, See Part 1D, 6(b) of the permit. 2, The requirements for sites to qual fy for reduced inspection frequencies for completed sites have been slightly modified (see Part LD, 6(a)(2) of the permit). The requirement now is that only construction activities that disturb the ground surface must be completed. Construction activities that can be conducted without disturbance of the ground surface; for example, interior building construction, and some oil well activities, would not prohibit a site from otherwise qualifying for the reduced inspection frequency. In addition, the requirement for the site to be prepared for final stabilization has been slightly modified to allow for sites that have not yet been seeded to qualms, as long as the site has otherwise been prepared for final stabilization, including completion of appropriate soil preparation, amendments and stabilization practice. This will allow for sites with seasonal seeding limitations or where additional seed application may be needed in the,future to still qualms,