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Station SW -N101 was dropped from the monitoring program in the Calamity draw as Stations <br />SW -108 and SW -109 replaced its functions. <br />Surface station SW -N104 monitors the flow and water quality of the West Lateral Ditch as it <br />enters the area upstream of the mine permit. To more accurately reflect the water quality <br />immediately upstream of the mine, the sample site has been moved from its original location <br />within the Town of Nucla to the HDPE inlet structure located at the mine property boundary. <br />Monitoring of the CCC West Lateral Ditch downstream of the mine property at site SW -N105 <br />has been discontinued since the installation of the HDPE pipelines mentioned above in West <br />Lateral Irrigation Ditch - Flow and Water Quality section eliminates the possibility any mine <br />water interacting with ditch water. Map 2.04.7 -1A shows the new location of SW -N104. <br />Monthly flow, pH, temperature, and conductivity measurements will be taken at the four <br />monitoring locations to assess potential impacts of the mine and to fulfill the requirements for <br />the water augmentation plan. Water quality parameters listed in Table 2.04.7 -2 will be collected <br />on a quarterly basis for SW -102, and on a semi - annual basis for the remaining four stations <br />(SW -N104, SW -N108 and SW- N109). The discharge point at Pond 007 will also be monitored <br />for NPDES requirements. <br />REVISED JULY 2006 2.04.7 - 47 <br />