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<br />SITE <br />TABLE A <br />HYDROLOGIC MONITORING SITES <br />SURFACE FLOW, LEVEL, AND SPOIL SPRINGS <br />MONITORING FREQUENCY <br />Flow & Field Water Quality <br />Parameters Sampling <br />COMMENTS <br />SURFACE FLOW <br />Foidel Creek <br />USGS 09243900 Monthly Quarterly (2) <br />Middle Creek <br />USGS 09243700 Monthly Quarterly (2) <br />29 Monthly Quarterly (2) <br />• WATER LEVEL MEASUREMENT <br />304 Monthly - (1) & (3) <br />SPOIL SPRINGS <br />Spoil Spring(s) Quarterly Semiannually (4) <br />Note: <br />(1) Included with Twentymile Coal Company's hydrologic monitoring program. <br />If site is removed from TCC's program and continued monitoring is <br />required, CYCC will monitor the site. <br />(2) Sampling will be performed on a flexible schedule throughout the normal <br />flow period, March through September. Within this time frame, flow and <br />field parameters will be measured twelve (12) times and four (4) full <br />suite analyses will be conducted. <br />(3) Water level measurements collected from late March/early April through <br />September. Used to correlate with water level measurements of adjacent <br />alluvial well. <br />(4) At time of annual survey, flow and field parameters are measured. If <br />flow is greater than 35 gpm, a full suite analysis will be collected at <br />. the time of the survey and the site will be added to the spoil spring <br />plan. If less than 35 gpm, no further monitoring. <br />MR 90-10 Ex. 15-7 Revised 05/03/90 <br />