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NPDES 008 and site 12 are located on Bond Creek. Sites 11 and 13 exist on Fish Creek. Stream site 6 was originally established to determine the premining characteristics of Cow Camp Creek. Monitoring site 6 was discontinued to eliminate redundancy with stream site 10 further downstream at its confluence with Fish Creek. Instantaneous flow measurements are collected at all three creeks. Like the Grassy Creek drainage, streamflows in the Fish Creek basin are seasonally variable with peak flows occurring in the spring in response to snowmelt runoff. Monitoring of the reduced permit area will include NPDES 008 and three stream sites (SW-S2-11 on upper Fish Creek, SW-S2-12 on lower Bond Creek, and SW-S2-13 on lower Fish Creek). F. Probable Hydrologic Consequences A determination of the probable hydrologic consequences of the mining and reclamation activities at the Seneca II Mine site has been made by the applicant and is found in Volume 4, Tab 7, Section VII.B of the permit application. This section includes an evaluation of quantity and quality effects on ground and surface water systems and mitigative measures to be taken both during and after mining. The Probable Hydrologic Consequences section of this document is divided into two main subsections; Surface Water Effects and Ground Water Effects. Surface Water Effects The Seneca II Mine is located in the upper Yampa River basin on the north flank of the Williams Fork Mountains. The mine is located on a watershed divide between the Fish Creek drainage basin to the east and the Grassy Creek drainage basin to the west. Most of the previous mining at the original site occurred in the Little Grassy Creek basin which is tributary to Grassy Creek, a perennial tributary to the Yampa River. Mining in the Fish Creek basin began in 1982, in the Cow Camp Creek tributary basin. As mining in this drainage was completed, an area in another tributary basin of Fish Creek, Bond Creek, was disturbed; the disturbance area in Bond Creek comprises the reduced permit area. All mining activities have ceased and reclamation is nearly complete. The effects of mining on the water quality and quantity in the Fish Creek Basin are discussed below. Fish Creek Drainage Basin Mining in the Bond Creek drainage began in 1988. Flow from the pond peaked from 1995-1999, and has since decreased and is approaching pre-mine rates. Mean annual flow in 1987 was .028 cfs, and in 2009 it was 0.098 cfs. Concentrations of total dissolved solids increased steadily from July values of 530 mg/1 in 1988 to 3,600 mg/1 in 2007, but have showed a decreasing trend since. 16