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• 2.05.3 <br />(ii)(C) Operations and maintenance requirements for ponds B, C, J, K, F and the gob <br />pile pond are the same. The sediment ponds must be dewatered if they <br />contain water above the maximum sediment level. Pond C must be dewatered <br />between each mine discharge eventto assure the pond maintains the capacity <br />to contain the 10-year, 24-hour precipitation event. Dewatering events should <br />occur within 48 hours after the storm event or mine discharge which caused <br />the water accumulation. Sediment must be removed from the sediment <br />ponds. Ponds B and C are designed to contain a one year sediment load <br />which is less than the more typical three year sediment design load. Pond J <br />is designed to contain atwo year sediment load. Therefore, the sedimentfrom <br />the ponds may have to be removed more frequently. Sediment will be <br />removed from ponds B, C, J, K and F and the gob pile sediment pond no later <br />than when the ponds are 75% full of sediment. <br />(ii)(D) Sediment ponds B, C, J, K, F and the gob pile sediment pond will be removed <br />after the site has been reclaimed and the vegetation on the reclaimed site is <br />adequate to control erosion. Pond removal must be authorized by the Division <br />and the untreated drainage from the disturbed area ceases to contribute <br />additional suspended solids above natural conditions. <br />(iii) None of the sediment ponds meet the size requirements of this section, <br />therefore this section is not applicable. <br />(b) The sediment ponds are considered temporary ponds and are designed to <br />meet the requirements of Rules 4.05.6 and 4.05.9. <br />(c) Not applicable. <br />(d) Collection ditches and diversion ditches have been designed to comply with <br />the requirements of rules 4.05.3 and 4.05.4. <br />Small Area Exemptions (SAE) <br />The locations of the small area exemptions are presented on Map 20. The <br />Applicant will monitor the flow from the small area exemptions to assure <br />compliance with 4.05.2(3). The Applicant will use its best efforts to obtain <br />samples. The samples will be analyzed for pH, conductivity and total <br />settleable solids. Samples will be in compliance if they contain settleable solid <br />levels of 0.5 ml/I or less and the pH is greater than 6.5 and less than 9.0. <br />TR-30 2.05 - 32 - 11103 <br />A pyRo vE~ <br />3~z3~o y <br />