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<br />Revised 1/2a/so <br />Section 785.19(c) Continued <br />sedimentation ponds will be installed to control the water quality of <br />discharge from the No. 2 mine area, and the quality and quantity of <br />alluvial and stream water will be rtnnitored as described in the text of <br />Section 780.21(b). <br />The second subject area, the upper reaches of Foidel creek, is protected <br />from disturbance by drainage divides which enclose the watershed, as <br />shown on the Eckman Park Hydrology (Map 14). The preamble under Section <br />• 785.19(B) states, "The applicant is not expected to pursue effects and <br />interactions past hydrologic barriers or beyond points of statistical <br />insignificance. See 44 Fed. Rec. 15089 (March 13, 1979). Thus, no <br />detailed investigations were conducted in the uppermost reaches of <br />Foidel Creek. <br />The third subject area, the floodplain of Middle Creek, receives runoff <br />from the C-16284 lease tract at Mine No. 1. The mine area upslope from <br />the subject area is in the process of reclamation in 1980. In addition, <br />sedimentation pond H, shown on the Energy Mines 1 and 2 Hydrology <br />(Map 13), is designed, constructed and will be maintained to prevent any <br />material damage to alluvial valley floors >n the Middle Creek watershed. <br />Sampling of surface water inflow and outflow through the subject area <br />• will be conducted at the sites shown on the Twentymile Park Hydrology <br />785-9(r) <br />