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4.0 SEEP AND SPRING INFORMATION <br />Two spring monitoring points, SP-8 and SP-9 aze monitored and the results compared with <br />baseline and historic monitoring data. A significant change in the quality or quantity of flow <br />from these springs and seeps after retreat mining might indicate that the mine might be impacting <br />these water resources. <br />The data collected from Oxbow's groundwater monitoring stations, along with the results of <br />~.:~,.,. laboratory analyses are presented in Exhibit 2 -Groundwater Information <br />Spring SP-8 <br />Based on the quality and location of spring SP-8, it was determined that the source of the spring <br />was the abandoned Oliver Mine. Until 1999, flows from this spring were been relatively <br />consistent. No flows were recorded during any of the 2001, 2002, 2003 or 2004 monitoring <br />events. Based solely upon coincidence, Oxbow believes that water from the Oliver Mine may <br />have drained into the Sanborn Creek mine at the time of the 1999 mine fire event. Since this <br />event occurred, no flow from spring SP-8 has been recorded. <br />Spring SP-9 <br />• Spring SP-9 is a seep located at the base of a landslide feature in the Unnamed Gulch. <br />Historically, flow had been nearly continual, but at very low rates. The source of the spring <br />appears to be a shallow perched water zone dischazging from the toe of a surface slide feature. <br />During 2004 the spring SP-9 did not flow. <br />• <br />