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Ta .e 13 <br />Summary of Surface Uat er Monitoring Sites, <br />Seneca II Mine, Routt County, Colorado <br /> l,2 <br />Site Name Drainage and Elevation Type of Flaw Measurement and Remarks <br />(Computer No.) (See Exhibit 7-2) <br />NPDES 002 Lower Little Gr <br />a <br />C <br />r eek <br />s s <br />y Continuous recorder with 3-foot H-flume (site referred to as Uadge <br />(DA0002) 6614 feet ~ (/ ~/~ <br />~ <br />G <br />O <br />~~ <br />Q Impoundment) <br /> <br />NPDES 003 Discharges into Lower / ~~~ !~J? Continuous recorder with 2-foot H-flume (site referred to as Shop <br />(DA003) Grassy Creek, 6577 feet Reservoir or Northwest Impoundment) <br />NPDES 004 p <br />Upper Lou camp Creak / ~}~(~ t,C)Cr Continuous recorder with 1•foot Parshall flume <br />(DA0004) 6947 fee--' <br /> <br />NPDES 007 Upper Bond Creek ~C127~,~j d a,- Continuous recorder with 7-foot Parshall flume, discontinued <br />(DA0007) <br />NPDES 008 Upper Bond Creek ~~,vp./ Op'` Continuous recorder with 1-foot Parshall flume, replaces NPDES 007 <br />(DA0008) 7075 feet <br />SN-S2-1 Upper Grassy Lre ek Crest Stage Gage (CSG) site, 0 = V0. <br />(SA0001) 6595 feet <br />SW-52-2 Lower Grassy Creek Ouafity sample taken at site below NPDES 003 discharge; D = VA, CSG <br />(SA0002) Water quality at 6565 feet upstream of NPDES 003 discharge on Lower Grassy Creek (reported <br /> CSG at 6575 feet flows include NPDES 003 flow) <br />SW-S2-3 Lower Northwest Diversion Ditch Monitored fly .ash area drainage; discontinued when Colorado U[e <br />(SA0003) (see Exhibit 7-7) Electric Association bought property <br />SN-S-4 Upper Northwest Diversion Ditch Discontinued per CMLRD's response to the Seneca II Mine 7983 AHR <br />(SA0004) (April 1984) <br />SN-S-S Upper Little Grassy Creek CSC site, 0 = VA (high flow), D = B & S (low flow) <br />(SA0005) 6790 feet <br />N <br />N <br />