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Salt Creek Mining Company has supplied data indicating characteristics of <br />water quantity and quality for East Salt Creek in the vicinity of Munger <br />Canyon and for the drainage in Munger Canyon. Total dissolved solids in <br />East Sait Creek have been noted over a range of 600 mg/1 to 10,000 mg/l. <br />The accepted standard for irrigation water is 1500 mg/1 and for livestock <br />is 5000 mg/l. Water is typically a sodium sulfate type. <br />In Munger Creek, like most semi-arid ephemeral drainages, dissolved <br />constituents in surface water often reach high levels during storm <br />runoff. Dissolved solids measured in Munger Canyon ranged from 92 mg/1 <br />in December to 956 mg/1 in April. <br />Subsequent to issuance of the initial permanent regulatory program <br />permit, Salt Creek Mining company implemented a plan for the collection, <br />recording and reporting of surface water quality and quantity data. The <br />program consists of surface water monitoring above and below the <br />disturbance in the Munger Canyon tributary, along Munger Canyon before <br />the confluence with East Salt Creek and along East Salt Creek upstream <br />and downstream of the confluence with Munger Canyon. The monitoring plan <br />also includes a new monitoring site (SW-8) which is located along East <br />Salt Creek between Munger and McClave Canyon. This monitoring plan will <br />be sufficient to identify any effects of the operation on the surface <br />water hydrology. <br />Salt Creek Mininq company has committed to the following monitoring <br />program: <br />Surface Water Monitoring: <br />A) Flow measurements will be taken at surface water monitoring site SW-3 <br />and water samples will be taken from sites SW-3, SW-6 and SW-7 on <br />Munger Canyon twice a year (at different times of the year). SW-3 is <br />located in Munqer Creek downstream of the mine. SW-6 is located in <br />the unnamed drainage to Munger Creek downstream from the mine. SW-7 <br />is located in the unnamed drainage to Munger Creek upstream of the <br />mine. Sampling will be as follows: <br />a) once during spring snowmeit <br />b) once during a storm event (spring or summer) <br />B) Flow measurements will be taken quarterly from site SW-l, upstream <br />from the mine on East Salt Creek. Water samples will be taken <br />quarterly from sites SW-l, SW-4, and SW-8. SW-8 is located between <br />McClave and Munqer Canyons on East Salt Creek. SW-4 is located <br />downstream of the confluence of Munger Creek on East Salt Creek. <br />C) The water samples will be chemically analyzed for the parameters <br />specified below: <br />pH <br />Specific Conductance <br />Temperature (field) <br />Total Suspended Solids <br />Total Dissolved Solids <br />7ota1 Hardness <br />Sodium Absorption <br />Ratio <br />Bicarbonate (HC03) <br />Magnesium (Mg+2) <br />Sodium (Na+) <br />Sulfate (SOq) <br />Aluminum (Al) <br />Arsenic (As) <br />Boron (B) <br />Cadmium (Cd) <br />Copper (Cu) <br />Iron (Fe) <br />Lead (Pb) <br />Manganese (Mn) <br />Mercury (Hg) <br />Molybdenum (Mo) <br />Selenium (Se> <br />_pl_ <br />