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The alluvial ground water system in East Salt Creek could also be impacted as a result of the surface disturbance in McClane Canyon. However, as discussed in detail under the AVF section of this findings document, the potential for an effect on the alluvial system as a result of the alteration of the surface floor will be insignificant. If the recharge of the alluvial aquifer were solely dependent on surface flow the significance of the disturbed area with respect to flow in the alluvium would be negligible. All waters which could be potentially impacted by the operation will be monitored for any adverse impacts. Surface water monitoring sites are located upstream and downstream of the disturbance so that any detrimental impacts will be determined. Ground water alluvial wells have been established upgradient and downgradient of McClane Canyon along East Salt Creek to monitor the effects of mining. Changes in flow and water quality parameters will be measured at all of these monitoring sites. Monitoring data collected to date reveals no adverse impacts to surface or ground water quality and quantity resulting from the McClane Canyon mining operation. A majority of the monitoring has been suspended, however, due to temporary cessation of operations and no additional disturbances at the mine since January of 1984. Full scale monitoring will resume once mining operations re-commence or any new surface disturbances are created. Salt Creek Mining Company has also received a permit to mine in Munger Canyon, (see Mined Land Reclamation File #C-020-81) one mile south of McClane Canyon. The mine is an underground mine with the face up and facilities in a canyon at the headwaters of a tributary to Munger Canyon. The face up is located approximately two miles from the intersection of Munger Canyon and the East Salt Creek drainage. The Munger Canyon Mine will also affect the quantity and quality of surface water in East Salt Creek. This effect would occur as a result of the surface disturbance at the mine and the impact this disturbance will have on runoff and surface flow in Munger Canyon. The total surface disturbance created by the Munger Canyon mining operation which will be contained within a sedimentation system is approximately 35 acres. This accounts for less than seven-tenths of a percent of the area contained within the Munger Canyon drainage (5,085 acres), and slightly over five one-hundredths of a percent of the total drainage area of East Salt Creek above the confluence with Munger Canyon (67,228 acres). Taken together, the total disturbance at both the Munger Canyon and McClane Canyon Mines (42.7 acres) will only affect sixty three one-hundredths of a percent of the drainage area of East Salt Creek. As indicated, the combined, or cumulative, impact on flow in East Salt Creek as a result of the operations at the McClane Canyon and Munger Canyon mining operations will be relatively insignificant. All flow _18_