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• i • For success comparison of the cropland it is suggested to use the field immediatedly to the east, as that particular field has been reworked and reseeded just prior to commencing the reclamation work on the mine site. An identical seed mix (Table 4.4-3a), excluding the Timothy grass component, which, according to local farmers, will not grow in this area, has been used on the off-site tract (appr. 23 acres). For the success determination it is suggested to use bales per acre (33 bales per ton), which is commonly used in local farming operations. As stated in the text, the Division will be notified of the timing of any planned harvesting operation. Please note, that, depending on weather conditions, harvesting, like this year on off-site parcels, is being done on a 24 hour basis. The same equipment would be used on both parcels and, considering the size of the individual parcels, would be harvested, most likely, within a 2 day span, if not on the same day. 18) The off-site tipple area is outside the disturbed mine site, but within the 5 year permit area. Its location to the east of the disturbed area has been indicated on the appropriate figure. 19) This subject has been discussed with previous reviewers. The intake for the temporary irrigation system will be a minor widening, and possibly a minor deepening, at one location of Ditch #1. It is not a containment structure as water will flow freely through it. it is not a pond, which would fall under the regulations governing impoundments, but merely a widening of the ditch by about 2 feet over a 4-5 foot section of the ditch to allow pumping of water to uphill lands two or three times per year. DMG suggested the term sump to clearly indicate the purpose of the temporary intake. 20) a) Please see Section 4.4.2.3, pages 4-55 and 4-56, which are still listed in the original version. Also see Division of wildlife letter, which mentions the advantages of terraces over slopes. Flat surfaces retain water longer, allowing for time to soak into the ground and, since the water is stationary, no erosion occurs. On slopes, water will run downhill, only wetting the surface of the slopes. Erosion will be considerable. The advantages of the terraces over the slopes were recently quite obvious, as the considerable rainfall during the past month was completely soaked up by the ground on the terraces. In comparison on the one slope, the accumulation of water on the lower part of the slope caused a break, albeit a minor one, in the downhill ditchbank. There is practically no gradient on the terraces except a slight elevation on the down side, which will retard any run- off from one terrace to the next lower one. 6'~~~~~al , i ~ p~~~, ,'ll - 3 -