2008-08-19_PERMIT FILE - M2008035

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ENVIRONMENT, INC. PAGE 2 YUMA COUNTY - MOSER PIT M-2008-035 AUGUST 1 9, 2008 and on both sides of the roadway to collect any runoff. The length will vary'as mining progresses and,will be shortened as mining progresses to the south. This road is the land- owners primary.access to this site and the land they own that surrounds the mine. It will remain, when mining and reclamation ends for their use. Rule 6.4.5 Exhibit F - Reclamation Plan 4. Yuma County will commit to doubling the seed mix if broad- cast seeding is needed at the mine. 2.. After reviewing your comment I called Ms. Julie Elliott at the NRCS office to get her input on using manure at this mine. She suggested we avoid using any soil enhancements that contained nitrogen. She explained that the soils in. this area were nitrogen rich and did not need more. She also pointed out that using 20 tons of cow manure per acre on the seedbed would only bring unwanted weed seeds into the mine,,promote Kochia growth and hinder growth of the native species-of grass. At this time we feel it is prudent to heed her warning and will remove the commitment to placing cow manure or chemical fertilizers to the seedbed for this mine. The Reclamation Cost Estimate should also be revised to remove the commitment,to`added manure, too. 5. The use of the word if is a qualifier used to hedge on the depth incase we find there is no topsoil on large areas of the mine. This allows the operator to use only the top- soil/growth medium available and not have to import material if it did not 'exist on the site ,to begin with. In the northwest corner where mining took place in the past there is no topsoil. This.is where the qualifier would cover us. Without doing the calculations-resoiling this area would reduce the material available for-the rest of the mine, meaning we could option to not resoil that area or reduce the amount of material placed on the rest of the area. The County would prefer to resoil the entire area and, so must reduce the average depth so there is enough soil to go around. You are correct in that I should have use a range instead of a finite number. The average depth of soil noted in the soils report is 10 toll inches. The law does not require Yuma County to commit to-replacing-more topsoil than is on the site now. They will commit to salvaging what growth medium is available-from the disturbed area and replacing it all on the site at an,average depth of 6 to'8 inches and if more is available it will be used. 6. I agree, I should have noted a Technical Revision would be submitted to change the seed mix and we will wait to imple- ment the change until the Division approves the change.