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.~ TWIN PINES INVESTMENT LIMITED PARTNERSHIP FALCON ENERGY, INC. GENERAL PARTNER TWIN PINES COAL MINE W2 PHONE 784-3361 P. O. BOX 712059 CANON CITY, COLORADO 81212 III IIIIIIIIIIIII III September 23, 1986 Mr. Gregg Squire Mined Land Reclamation Division 423 Centennial Building 1313 Sherman Street Denver, CO 80203 Subject: Twin Pines No. 2 Mine; Permit No. C=058-83 Dear Mr. Squire: SEF 2 s i98:S In accordance with Stipulation No. 1 and 2 of Subject Permit, for the period from April 15, 1986 to September 15, 1986, is submitted here- with. Market demands for coal during the period resulted in a cut back in production of the Mine. The extent of the workings to date are shown on the attached map. No measurable inflows of water have been encountered as the Main entries have advanced. The First Right section was not worked during the period. Inflow into the mine is still limited to seepage through the coal and the sandstone strata lying below the coal. With water collecting in dips in the floor of the mine, pumping rates from the mine have not increased during the period. No water has been discharged into Lewis Gulch. Water level measurements and associated data for the monitoring wells for the reporting period are as follows: TPW-1 DATE 7-7-86 CONDUCTIVITY 630 PH 8.2 LEVEL 142.' TEMPERATURE 56°F 8-19-86 9-12-86 580 580 7.6 7.5 89.8' 90.4' 53°F 53°F CALDIROLA 8-19-86 9-12-86 7-7-86 700 760 530 8.3 8.2 7.2 143:9' 146.5' 84.9'* 58°F 58°F 54°F *Well was pumped during the period 5/13/86 to 7/7/86 from 8340 to 8343+. Electric Meter Change Please note that the Caldirola Mine Well was pumped during the period 5-13-86 to 7-7-86, lowering the well level approximently 10 feet. (It was determined that the well as pumped from an increased reading on the Power Cus. Watt-Hr Meter)