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water movement and geochemical reactions that control water quality in reclaimed <br />spoil. <br />Native Springs <br />Four native springs exist within the original permit area: Springs #1, 2, 3 and 5. <br />Spring #4 is outside the permit area and is no longer sampled. Seneca previously <br />discontinued monitoring of all natural springs at the Seneca H Mine. Springs #1 <br />and #2 exist in a pre -SMCRA area and springs #3 and #5 are poorly defined seeps <br />in a seasonally marshy area. None of the native springs exist within the current <br />permit area. <br />Surface Water <br />The applicant will conduct monitoring of surface water in a manner approved by <br />the Division. The monitoring plan was submitted under 2.05.6(3)(b)(iv) and is <br />discussed on page 2.04.7 -2 of the PAP. Surface water hydrology information can <br />be found in Volumes 4, 5, and 6, Tab 7 of the permit application, and in the <br />Annual Hydrology Reports submitted by Seneca Coal Company. The monitoring <br />plan for the current permit area is discussed on page 2.04.7 -2 of the PAP. <br />The Seneca II Mine is located within the drainage basin of Fish Creek. This <br />drainage basin is a sub -basin of the upper Yampa River basin in northwestern <br />Colorado. Mining areas in the original permit area were within the Grassy Creek <br />and Fish Creek basins. The current permit area will affect only the Fish Creek <br />basin. <br />Fish Creek Basin <br />Seneca Coal Company originally monitored seven surface water sites in the Fish <br />Creek basin. NPDES 004 and Sites 6 and 10 are located on Cow Camp Creek. <br />NPDES 008 and site 12 are located on Bond Creek. Sites 11 and 13 exist on Fish <br />Creek. Stream site 6 was originally established to determine the premining <br />characteristics of Cow Camp Creek. Monitoring site 6 was discontinued to <br />eliminate redundancy with stream site 10 further downstream at its confluence <br />with Fish Creek. Instantaneous flow measurements are collected at all three <br />creeks. Like the Grassy Creek drainage, streamflows in the Fish Creek basin are <br />seasonally variable, with peak flows occurring in the spring in response to <br />snowmelt runoff. Monitoring of the current permit area will include NPDES 008 <br />and three stream sites (SW -S2 -11 on upper Fish Creek, SW -S2 -12 on lower Bond <br />Creek, and SW -S2 -13 on lower Fish Creek). <br />F. Probable Hydrologic Consequences <br />A determination of the probable hydrologic consequences of the mining and <br />15 <br />