REP39175 - Laserfiche WebLink

Home Browse Search

Table 6 - 1985 No. 5 Mine Inflow Results Sampling EC(mmhos/cm) Station ~ @ 25°C Temp(°C) Flow(gpm) 1 8.1 684 8, 4:6 2 6.6 541 11 66.7. 3 7.7 1,075 18~ 19.1 4 7.1 1,288 .1.9~ 289.0 5 7.0 1,392 1$ 11.3 6 7.8 1,259 15 232.6 7 6.2 1,380 10 7.4 TOTAL 630.7 Measurable sources contributing to Sample Station 6 6A 6.7 1,737 12 0.6 68 6.3 1,702 11 1.3 6C (same source as 68) 1.2 Comparing the data from Table 4 with the data from Table 6, shows that the metered record data for June 20, 1986 (590.9 gpm) is approximately 40 gpm less than the total inflow measured during the survey conducted June 19, 1986 (630.7 gpm). This is an approximate 6% difference between metered outflow and servied inflow. 1.6 Conclusions The study reveals that conditions within the mine are remaining essentially the same as during the prior three years. That is, the eastern portion of the mine is relatively dry, while the western portion of the mine produces, the majority of the flow. The flow is associated with the same areas as described in the prior study. The fault system west side of the mine is producing water at about the same rate as measured during the previous year. Although the flow has decreased from prior years. It is approximately 29 gpn less this year. This data indicates that the inflow has not changed appreciably since May, 1983. The field parameters measurement obtained from the water flowing from the fault and west side of the mine is essentially the same as prior years. The reasons for the difference in water quality between the Trout Creek sandstone water and the fault water has been explained previously. It appears the source of water to the fault is from aquifer(s) below the coal seams. It is postulated that the Trout Creek sandstone could be the source of water for the 2 west fault. The water levels obtained from the -7-