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The flows for the two stations reflect the typical seasonal <br />• variation, with a rapid rise in flow during the runoff period <br />followed by decreasing flow rates in summer and low flow conditions <br />during the remainder of the period. The flow data for the two <br />sites is presented on figures 12 and 13. <br />Water Quality <br />Water quality data measured at the sites are presented on tables 51 <br />through 57 for station SW3, on tables 58 through 64 for SW3A and <br />tables 65 through 71 for SW4. As is presented on the tables the <br />water quality for Fish Creek has not been impacted by the <br />undermining or subsiding within the study area. The water quality <br />has remained consistent throughout the sampling period. A <br />comparison of the various parameters measured at the two sites does <br />not show any significant difference between the reported values for <br />the two sites. For example, the upstream and downstream total <br />dissolved solids concentrations have approximately the same ranges <br />and seasonal variation. The anions track consistently between the <br />stations, and the water is a bicarbonate type. Metals, except for <br />the ubiquitous iron and manganese are either nonexistent or present <br />in low concentrations. <br />4.0 IMPACTS AND FIITURE MONITORING <br />The data collected from the various stations located throughout the <br />• Fish Creek AVF study area indicate that neither water quality or <br />water quantity has been significantly impacted by undermining and <br />subsiding the area. The two shallow bedrock wells have been <br />dewatered; however, it appears that this is a transitory impact as <br />both of the wells are showing signs of recovering. The alluvial <br />wells did not show any signs of dewatering from the undermining and <br />subsiding of the area. As is evident in the water quality data, no <br />impacts to either the surface or ground water systems were caused <br />by the undermining and subsiding of the area. <br />The existing monitoring plan will be followed until such time as <br />TCC can apply to modify the plan. It is anticipated that the <br />monitoring plan can be modified in late 1994 or early 1995. <br />• 5 <br />