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Quality of Streams in the Bull Mountain Region, South-Central Montana

机译:蒙大拿州中南部公牛山区的溪流质量

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In October 1977, water-quality monitoring stations were established on five small streams that drain the Bull Mountains and also on the Musselshell River to document present water-quality conditions in a coal area of south-central Montana. Relatively static water-quality conditions exist throughout the annual flow cycle on the small streams but water quality varies with time on the Musselshell River. The near absence of surface runoff in the Bull Mountains during the study and the dominance by the base-flow component account for stability of water quality in the small streams. High-mountain runoff coupled with storms and prairie runoff impact the base flow of the Musselshell River. Suspended-sediment loads ranged from 0.56 to 37,300 tons per day and correlated directly to stream discharge.

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