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• Mr. Kent Gorham <br />July 26, 1997 <br />Page 5 <br />subsequent sediment runoff to the <br />significantly from the modeled storm. <br />performance standazds and effluent <br />adequately. <br />site. Sediment delivery ratios will decrease <br />LCC recognized the necessity to meet applicable <br />egulations, but feels that the pond will perform <br />Fill 5 <br />~~ j. LCC is confident of its current designs, and is refraining from re-design of the Fill 5 pond <br />at this time per the azguments found in 1481. <br />~k. The Fill 5 required sediment storage level has been changed on Exhibit IS-14. <br />~~ 150. LCC anticipates and accepts the stipulation associated with the geotechnical investigation <br />C'1~ ~ of the MSHA ponds. <br />STS ~ <br />l ~ l . LCC anticipates and accepts the stipulation associated with the geotechnical investigation <br />L/7 of the MSHA ponds. <br />~f 164. A reassessment of the potential worst ease disturbance associated with culvert 124 + 79 <br />. yielded dischazge of 254.63 cfs and the need for an 84" culvert at that location. Please <br />replace the revised culvert run in Exhibit 14 as well as the Jeff Canyon Haul Road Ditch and <br />Culvert Specifications Table. <br />~~( 183. LCC accepts the stipulation on the geotechnical study. <br />~~184. The overlay (Figure 3.02.2-1) has been recreated and is attached. Terracing is currently <br />~, found throughout the post-mine topography as shown on Map 2.05.4-1. <br />Q~185. The fill #1 designation on Figure 2.05.4-I1 has been eliminated as the cross-section no <br />longer passes through Fill 1. <br />~~~ ~~- <br />~ LCC conceptually accepts the stipulations identified in the July 26, 1997 adequacy letter. Please <br />~~ ~ forwazd a draft copy of the stipulations to LCC as they aze prepared. We would like to be included <br />~~ ~,~ in the discussion of verbiage and the stipulation dates. Please do not hesitate to call with questions. <br />C ~," M <br />J~ <br />Sincerely, <br />~~~ y <br />Cathy Begej <br />Assistant Project Manager <br />• attachments <br />