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Salt Creek in the vicinity of Munger Canyon and for the drainage in Munger Canyon <br />was provided in the original permit application, summarized in Section 4.5 of the <br />application text. Total dissolved solids in East Salt Creek have been noted over a range of <br />600 mg/l to 10,000 mg/1. Water is typically a sodium sulfate type. <br />In Munger Creek, like most semi -arid ephemeral drainages, dissolved constituents in <br />surface water often reach high levels during storm runoff. Dissolved solids measured <br />in Munger Canyon ranged from 92 mg/1 in December to 956 mg/l in April. <br />Subsequent to issuance of the initial permanent regulatory program permit, the operator <br />implemented a plan for the collection, recording and reporting of surface water quality <br />and quantity data. The program consists of surface water monitoring above and below <br />the disturbance in the Munger Canyon tributary, along Munger Canyon before the <br />confluence with East Salt Creek and along East Salt Creek upstream and downstream of <br />the confluence with Munger Canyon. This monitoring plan will be sufficient to identify <br />any effects of the operation on the surface water hydrology. The hydrology monitoring <br />program for the Munger Canyon Mine is in part combined with the monitoring <br />program for the adjacent McClave Canyon Mine, which is also operated by CAM, and <br />data collected at several of the sites fulfills monitoring requirements for both permits. <br />A combined Annual Hydrology Report with sample data, summaries, and impact <br />assessment for each mine is submitted by March 31 of each year, covering the previous <br />water year. <br />The operator has committed to the following surface water monitoring <br />program: <br />1. Flow measurements will be taken at surface water monitoring sites SW -1, upstream <br />from the mine on East Salt Creek, and SW -3, in Munger Creek downstream from the <br />mine site. The measurements will be taken twice a year if water is available to <br />sample. Measurements will be taken once during spring snow melt and once during a <br />storm event. <br />2. Water quality samples of East Salt Creek will be collected quarterly at sites SW -1, <br />SW -4 and SW -8. SW -8 is located between McClane and Munger Canyons on East <br />Salt Creek. SW -4 is located downstream of the confluence of Munger Creek on East <br />Salt Creek. Water quality samples will also be taken on Munger Creek and its <br />tributaries at sites SW -3, SW -6 and SW -7 twice a year; once during spring snow melt <br />and once during a storm event (spring or summer). <br />3. Surface water samples will be chemically analyzed for the 23 parameters specified in <br />the "Full Suite For Active Mining List", in Table 2.5-2 of the permit application. <br />4. The results of all monitoring will be submitted to the Division immediately following <br />receipt of analytical results. Monitoring results and summary, along with a report <br />addressing mine inflows, discharges, and consumption in the mine will also be <br />17 <br />