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'~ ", •`f'. Ms. Carol Russell October 28, 1981 Page 2 Proposed Reclamation Activities Backfilling the Pit Construct Clay Zone Final Grading Redistribution of Topsoil Seeding/Revegetation 8ackfill Diversion Ditches Final Grading Redistribution of Topsoil Seeding/Revegetation ,~ i,i it i~It~~J • Approximate Time Frame December 31, 1981 January 31, 1982 February 15, 1982 March 15, 1982 .x- May 1, 1982 July 31, 1982 August 31, 1982 September 30, 1982 October 30, 19P,2* *The planned seeding dates were recommended by Mr. David S. Patch, GEC's Vegetation Consultant. MAGPIE CREEK DIVERSION C1iANNEL - The existing Magpie Creek Diversion Channel within GEC's boundary was constructed based on the 10-year 24-hour storm event. However, a recent report (under the SOAP Program) generated by Simons, Li & Associates, Inc., indicates that the Magpie Creek Diversion channel within Dorchester's permit boundary is a permanent diversion. Therefore, the portion within GEC's permit boundary is reasonable to design as permanent diversion. The channel is designed to contain the 10-year, 24-hour storm event. The flood plain should be able to handle the 100-year peak discharge. In order to convert the existing channel bed and side slopes tc the dimension recommended by SLA, a considerable amount of work and effort will have to be put into GEC's operational schedule, The lining material such as the Filter Fabric also takes a long time tc order. Besides this, Dorchester - GEC's next door neighbor operator, still uses this area (within GEC Permit Boundary) to ertend it's pipe extension work, which interferes with GEC reclamation work even at this moment. Because of this, GEC is herewithin requesting that the deadline to completely reconstruct Magpie Creek Channel within GEC's permit boundary be postponed from November 15, 1981, to December 31, 1981. UNNAMED DIVERSION CHANNEL (Dam D Area) - Same as Magpie Creek Diversion Channel. After the completion of this specific channel SLA suggested this channel be converted to a permanent diversion just because Dorchester intends to design Magpie Creek Diversion Channel on a permanent basis. The amount of reconstruction work and effort that will be required is signifi- cant, therefore, GEC is herewithin requesting that the deadline of re-establishment of the channel be changed to December 31, 1981.