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RULE 4 PERFORMANCE STANDARDS <br />At various times, due to unforeseen circumstances, Colowyo will obtain and discharge water <br />under a CDPS minimal discharge permit. In the event that water is discharged under a <br />minimal discharge permit, Colowyo will report the discharge in the corresponding Annual <br />Hydrologic Report. <br />Surface Water - Five additional surface water sites will be monitored to some degree as a result of <br />expanding mining activity into the Collom Expansion Area. The existing six surface water sites <br />will continue to be monitored to some degree. These points include five locations along Good <br />Spring Creek and one location along Taylor Creek. <br />Monitoring Monitoring Monitoring Quarterly Field Quarterly Laboratory <br />Type Location Frequency Parameters Parameters <br />Surface <br />Upper Collom <br />Quarterly <br />Flow from Parshall <br />See List Below. <br />Water <br />Gulch (UCG)' <br />Flume. See List Below <br />Surface <br />Lower Collom <br />Quarterly <br />Flow from Parshall <br />See List Below. <br />Water <br />Gulch (LCG)2 <br />Flume. See List Below. <br />Surface <br />Lower Little <br />Flow from Parshall <br />Water <br />Collom Gulch <br />Quarterly <br />Flume. See List Below. <br />See List Below. <br />(LLCG) <br />Surface <br />West Fork of <br />Flow from Parshall <br />Water <br />Jubb Creek <br />Quarterly <br />Flume. See List Below <br />See List Below. <br />(WFJC) <br />Surface <br />Confluence of <br />Flow from Parshall <br />Water <br />Ju(C Creek <br />Quarterly <br />Flume. See List Below <br />See List Below. <br />Surface <br />Lower Taylor <br />Flow from Parshall <br />Flow l <br />Water <br />Creek (LTC)6 <br />Quarterly <br />Flume. See Lit Below <br />Flume. <br />See Lit Below <br />Flow Only taken from <br />Flow Only taken from <br />Lower West <br />Parshall Flume. Volume <br />Parshall Flume. Volume <br />Surface <br />Fork Good <br />Quarterly <br />added to EFGSC <br />added to EFGSC <br />Water <br />Spring Creek <br />(LWFGSC)7 <br />measurement to apply to <br />measurement to apply to <br />actual flow for NUGSC. <br />actual flow for NUGSC. <br />Flow Only taken from <br />Flow Only taken from <br />East Fork <br />Parshall Flume. Volume <br />Parshall Flume. Volume <br />Surface <br />Good Spring <br />Quarterly <br />added to LWFGSC <br />added to LWFGSC <br />Water <br />Creek <br />(EFGSC)' <br />measurement to apply to <br />measurement to apply to <br />actual flow for NUGSC. <br />actual flow for NUGSC. <br />Upper West <br />Surface <br />Fork Good <br />Quarterly <br />Flow from Parshall <br />Flow from Parshall Flume. <br />Water <br />Spring Creek <br />Flume. See List Below <br />See List Below <br />(UWFGSC)9 <br />New Upper <br />See List Below. Flow <br />See List Below. Flow <br />Surface <br />Good Spring <br />Quarterly <br />estimated by combining <br />estimated by combining <br />Water <br />Creek <br />measurements taken from <br />measurements taken from <br />(NUGSC)10 <br />LWFGSC & EFGSC. <br />LWFGSC & EFGSC. <br />Surface <br />Lower Good <br />Flow from Parshall <br />Flow from Parshall <br />Water <br />Spring Creek <br />(LGSC) <br />Quarterly <br />Flume. See List Below <br />F1ume.See List Below <br />1. Upper Collom Gulch (UCG) represents the water quality conditions in Collom Gulch upstream of <br />the Collorn Lite mining area. No impact on flow or water quality at UCG is anticipated. <br />2. Lower Collom Gulch (LCG) represents the cc nditions in Collom Gulch downstream of mining <br />impacts. No impact on flow or water quality at UCG is anticipated. <br />Collom — Rule 4, Page 13 Revision Date: 9/28/11 <br />Revision No.: PR -03 <br />