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Bowie Resources Limited Bowie No. 1 Mine • 1998 Annual Hydrology Report adverse mine related impacts or other irregularities were noted at any ofthese Terror Creek Springs. Monitoring of Springs 7-10, 8-5, and 21 and Spring and Pond 22 continues in anticipation of future East Pod mining activities Surface Water Monitoring Stations: STREAMS AND DITCHES Monitoring of surface water stations during 1998 was concentrated in the Steven's Gulch and East Roatcap Creek azeas as these drainages had seen recent mining activity and were projected for further activity during the current permit term. Overall, adverse impacts attnbutable to mining were not evident at any of the monitored surface water stations (refer to Table 1 and Map No. 4-1). Stations SW-5 (Stevens Gulch), SW-6 (East Roatcap Creek), and SW-10 (Terror Ditch), exhibited normal flows and water quality parameters consistent with previous years data. No evidence of subsidence impacts in these drainages was apparent. Mining occurred in the Stevens Gulch drainage upstream of site S W-5 during 1993 in Panel C. Panel C mining was designed and conducted to prevent the development of subsidence to protect the waterway and certain structures in the vicinity. Data collected during 1998 shows these protective measures were successful. Monitoring of SW-1, (West Terror Creek) and SW-2, (Upstream Terror Creek) continues in anticipation of fimrre East Pod mining activities. Surface Water Monitoring Stations: SMALL AREA EXEMPTIONS • The east mine fan level was defined as a small area exertion since drainage from this area (refer to Map 8-1) is not conveyed to a sediment pond. Three sample points were defined at this location and sampled for conformance with the NPDES dischazge ahemative limitations requirements associated with discharges occurring because of precipitation events of less than the 10-yeaz and 24-hour magnitude. In these instances, settable solids and pH limitation must be met. No samples were collected during 1998 from these SAE points. Coal Member of Mesaverde: Well DH 65 is in the East Roatcap (see Map No. 4-1) drainage and overlies the 1st East Mains/ Panel Y developed in 1994. This location was measured three times for water levels during 1996. During the 3rd quarter of 1996, the operator was unable to determine water levels due to an obstruction in DH 65. Due to this obstruction, DH 65 has been removed from the sampling program. DH 60 is also in the East Roatcap Creek drainage and is at the end of Panel H. This well has a 1,040' long tube in it to measure depth to water. This location was measured three times for water levels during 1998 and the water level was appazently below the tube during all monitoring events. No other field or water quality data is available for this type of monitoring. Surface Water Monitoring Stations: PONDS East Roatcap Creek Fifteen ponds in the East Roatcap Creek drainage were monitored during 1998 (refer to Table 1 • and Map No. 4-1). Ponds were monitored quarterly for water levels and field parameters if they were discharging. Water quality samples were collected in the spring. The ponds were not Page 5