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since water level fluctuations are the smallest then. The triannual frequency has been previously <br />approved by the CDMG for SCC's Seneca II and Yoast Mines. This triannual frequency Is still <br />sufficent to determine both seasonal and year-to-year water level fluctuations. <br />TABLE 1 <br />Current Hydrologic Monitoring Program <br />Surface Water <br />Monitoring Frequency <br />Site Number Discharge Water Quality Comments <br />SW-S2W-SG5 Monthly Monthly/Triannual <br />SW-S2W-SG7 Monthly Monthly/Triannual <br />SW-S2W-SG9 June/September June/September <br />~~ SW-S2W-FG1 Continuous MonthlylTriannual <br />SW-S2W-FG4 Continuous Monthly/Triannual <br />SW-S2W-SG16 Monthly Monthly/Semiannual' Will discontinue upon <br /> construction of Pond 016 <br />SW-S2W-SG17 Monthly Monthly/Semiannual' Will discontinue upon <br /> construction of Pond 017 <br />SW-S2W-CG1 Monthly MonthlylSemiannual' Will discontinue upon <br /> construction of Pond 015 <br />NPDES 005 Continuous Monthly/Triannual Monitor per NPDES permit • <br />NPDES 006 Continuous Monthly /Triannual Monitor per NPDES permit <br />NPDES 009 Continuous Monthly /Triannual Monitor per NPDES permit <br />NPDES 015 Continuous Monthly /Triannual Monitor per NPDES permit <br />NPDES 016 Continuous Monthly /Triannual Monitor per NPDES permit <br />NPDES 017 Continuous Monthly /Triannual Monitor per NPDES permit <br />Monthly =March-October only, at sites with a SW prefix monthly water quality consists of field <br />parameters only IpH, temperature, electrical conductivityl~ Monthly monitoring at NPDES sites <br />will be conducted during all months. <br />Triannual =Water quality samples 4analyzed according to the surface water parameter long <br />list) are collected during the 'key hydrologic events of spring snowmelt, late spring-early summer <br />baseflow, and fall baseflow. <br />Continuous =Continuous flow monitoring except during the winter months when the stilling <br />wells and flumes are frozen. <br />NOTE: For all springs Inativel, spoil springs, and stream sites, when sampling for the <br />surface water parameter long list is required and flow is less than 5 gpm, only field parameters <br />will be measured. <br />'For sites with this footnote, monitor June-September for flow and field parameters. • <br />Long list lab samples will be collected in June and September <br />15-3a-2 Revised 7/99 <br />