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• C~ :I. Comp1_'ance :+iGh Colorado Surface Coal .lining Reclamation .ict CRS 1973, as amended 3J-33'101, e sea., and *_ ie Rules and Recula t=ons Issued Pursuanc `J the Act This includes a listing of the particular ~ravisions of the requlatery program which :+ere e.rami.ned during the course of t.'xis inspection, and ident_f'_es entorcemenc actions taken during the inspection for =allure to comply with the Rules and Regu_'a t ons, the .;ct and the permit. 9.05 Hydrologic Balance A number of problems were noted by Jim Nerron in his July inspection report. A deflection shield had not been installed on the outlet of the culvert below the fuel storage area, as specified in the inspection report. The compliance date had passed. However, Mr, Reschke indicated that he planned to have the deflector installed by the end of the week. On a revisit to the site Friday, a deflector shield had been welded on to the culvert. Flow will be directed into the ditch. Grand Mesa is installing a culvert to replace the portion of the drainage ditch below the trash pile culvert that was noted in the previous inspection as requiring continuous maintenance. The portion of the pvc pipe on the West diversion ditch had been replaced and buried. The diversion ditch near the old portal has been deepened. Two additional problems were noted during the inspection. Coal lead been pushed into the drainage ditch at the South end of the yard, and the culvert at the turnoff to the refuse area had been crushed. On Friday, the coal had been cleaned from the ditch, but the culvert had not yet been repaired. The sediment pond was nearly full and water had been released recently. This water is produced in the mine and pumped into the pond. The water picks up high amounts of clay in the mine and extremely long settling periods are required in order to settle out t1~e fines so that the total suspended solids effluent standard can be met. Mr. Reschke had inquired previously about treating the water with a chemical flocculant, and submitted information concerning the flocculant to the Division on August 27, 1981. Upon reviewing this information, the Division has approved the use of the flocculant. The chemical used is Dowell M-178 Cationic flocculant, which is pumped into the water line when flowing. The Division of Water nuality was notified of Grand Mesa's intention to use the flocculant and gave their approval. Jar test analyses showed that after 3 minutes, drainage water flocculated with 12 ppm of M-I78 had reduced total suspended solids from 970 mg/1 to 20 mg/1. Very little change was detected between treated and untreated samples with respect to chemical water quality parameters.