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LETTER <br />Mr. Peter V. O'Connor, Reclamation Specialist <br />November 14, 1983 <br />Page Two <br />- All disturbed ground should be reclaimed; this includes land disturbed <br />by previous mining as well as all new mined land, access roads, and other <br />acreage disturbed due to the mining activity or other related activities. <br />- The soil and overburden on the site may not contain enough nutrients or <br />organic matter to sustain vegetative growth. The applicant proposes to <br />fertilize and mulch only if needed. Establishing a good stand of vege- <br />tation on reclaimed areas is important both from a visual and an erosion <br />control standpoint. Final reclaimed slopes would be stable provided <br />that the vegetation takes hold and continues to grow under natural condi- <br />tions. <br />- The mining permit document does not specifically state whether blasting <br />will be utilized. If blasting is not required then this issue is not <br />pertinent. If blasting is required the City is concerned with noise, <br />ground motion, and fly rock associated with blasting. <br />- The permit application should clarify why with a swell factor of 1.33 <br />only minimal compaction of backfill will be performed. Future construc- <br />tion will be required to comply with the recommendations of a geologic <br />report required at the time of site plan submittal. <br />- Cost estimates for seeding and fertilizing is extremely low; realistic <br />cost/acre for seeding and fertilizing is 51000/ac. <br />- Minimum acceptable plant establishment shall be four (4) plants per <br />square foot not including weeds (plants not specified in seed mix). <br />This must occur within one year of top soil spreading and seeding. <br />- No mention has been made of visual impact. Mining operation should be <br />screened from major thoroughfares, and adjacent residential areas as <br />they develop. <br />- 4 to 1 reclaimed slopes are acceptable, however, Exhibit F shows some <br />slopes steeper than 4 to 1. <br />The above concerns should be addressed and clarified prior to proceeding with <br />the permit process. If you should have any questions or concerns regarding <br />this response please feel free to contact Stan Weedon, Project Manager or <br />myself at 234-8860. <br />Sincerely <br />,Ji Peterson <br />City Planner <br />JP/vwb <br />