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Kul M. <br />the structure and ditch. Remnants of the former diversion structure are still <br />visible. The ditch is visible below the diversion structure and can be <br />traced through the area and on to the south and is used to irrigate two <br />fields in Section 29. There are no indications that the diverted water was <br />to be used within the permit area or that the permit area and immediate <br />surrounding areas have ever been cultivated. The investigation area <br />appears to have occasionally been used for grazing of natural vegetation. <br />The ditch and point of diversion are shown on Figure 4.1-2(a). Figure <br />4.1-2(a) denotes alluvial valley floors from the McClane Canyon Mine <br />down to the Highline canal. <br />The McClane Mining operation will not materially damage the quantity or <br />quality of water in surface or ground water systems that supply those <br />alluvial valley floors. <br />Data gathered for SW -1 and GW -3 are presented below. The Division's <br />1987 Material Damage guidelines require any measured salinity values <br />over 1000 umhos/cm be reported as `suspect' values. Since baseline <br />values for SW -1 and GW -3 far exceed the Division's `suspect' levels, the <br />Operator compiled data in order to demonstrate combined discharge, <br />defined as leachate from waste pile and mine water discharge, does not <br />add salinity to the already high values, rather, can only lower the salinity in <br />SWA and GW -3 during the irrigation season. By improving the salinity of <br />the waters in East Salt Creek and the East Salt Creek alluvium, <br />downstream farmers will not suffer loss of production due to the addition of <br />the combined discharge. Discharge from the sediment pond is not <br />included because it has only discharged twice in the last five years and <br />future discharge is uncertain based on USFWS conservation measures <br />discussed in section 2.04-11. <br />The following table presents the impact the combined discharge would <br />have on the EC in East Salt Creek measured above the McClane Canyon <br />Mine at SW -1 during irrigation season (April — October): <br />PR -02 2.06-3 10/12 <br />