PERMFILE42028 - Laserfiche WebLink

Home Browse Search

ENVIRONMENT. INC. PAt3E B HILOAM 67ONE -BEDROCK MINE M.L.R.B. PERMIT i~ M-97-OB6 JANUARY 7, 1 99B (5) 1 stated in Exhibit M, a stormwater tnanagethent parinit (SGIMP) will not be needed. In 1993, I was part of an industry group that prepared a Model Guide for SWMP's. The regula- tions say that if stormwater does not come in contact with disturbed area or is retained on site then a permit is not needed. Any stormwater contacting the disturbed site is considered "process waters" and to discharge this water you have to have an NPDES permit. I used this experience to determine a permit is not needed. I will stat that if that changes we will get a permit as required prior to discharge. 6.4.8 Exhibit H - t~ldlife Information I disagree that a more detailed analysis of the impacts this operation will have on wildlife is needed. As stated ear- lier it will take MANY years to develop the entire site. Since an estimated 15.0 acres of slab mining and 5 acres of surface rock area disturbed at one time, 938 of the site will be reclaimed by the time the final area is mined. what this means is that 78 of the site will be disturbed at any one time and this will have a negligible impact on wildlife using the site. There is afar greater chance that housing and development around the site will have more impact than the operation will have. The water supply will not be disrupted, if anything the short term accumulation of water in the mined area will supply more sites for wildlife to drink. DOW was not contacted since we had wildlife informa- tion from an adjoining mine. I would assume that if they did not respond to your notice that they were not concerned because of the limited yearly disturbance. I would welcome their comments as well. 6.4.10 Exhibit J -Vegetation Information (1) Attached is an addendum to be added to the application. It addresses points (a) and (b). (2) Map Exhibit C was revised to show the necessary vegetation information as explained on page 1 of this response. 6.4.12 Exhibit L - Reclamation Costs (1) You're correct it should be 12 inches. (2) This confusion may be cleared up by reviewing the attached sketch showing a typical slab rock mining area. Since sloping and recoiling will run concurrent with mining the amount of work and the push distance can be limited to 390 or less. Once the area is open the topsoil can be removed from the face area and spread or stored on the area where mining is complete so only the immediate mine work area will need recoiling.