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• 1.3 Surface Water Information <br />The data collected from the surface water monitoring stations and laboratory results <br />are presented m section 3. <br />Surface water monitoring point H-1 is located on Hubbard Creek, where this perennial <br />streams flows through the permit azea associated with the abandoned Somerset Mine. The <br />only current activity in the area has been reclamation of the Lower Hubbard Creek site. <br />H-1, Hubbard Creek, was monitored in April June, August, and October for field <br />parameters. In April and October, the full suite of surface water parameters in accordance <br />with Technical Revision No. 20 was analyzed. <br />Surface water monitoring points S-1 (Sanborn Creek upstream) and S-2 (Sanbom <br />Creek downstream) are designed to sample the flow in Sanbom Creek above and below the <br />disturbed area. Sanbom Creek receives discharge water from the mine. This source of water <br />will cause Sanborn Creek to flow yeaz around, for a distance of approximately 300 feet <br />through culverts under the railroad and highway prior to dischazging into the North Fork of <br />the Gunnison River. <br />Monitoring point S-1 flows during the spring run-off and significant precipitation <br />events. The disturbed area and mine water could effect the quality of water in Sanborn Creek <br />• only when there is flow at S-1. For this reason, S-2 is monitored only if S-1 has flow. <br />S-1 was monitored monthly, with flow recorded in April and May during spring ntn- <br />off. Since S-1 had flow, S-2 was also monitored m April and May. The quarterly full suite of <br />surface water parameters are scheduled for Mazch, June, September, and December. S-1 was <br />dry during these months so no full suite was analyzed. <br />P-1 (Portal Drop Inlet) was monitored monthly, with no flow recorded in any month. <br />Since P-1 was dry during the monthly monitoring inspections, there were no samples to <br />analyze for settleable solids. <br />Stipulation 14 to the permit requved Somerset Mining Company, the operator prior to <br />Oxbow Carbon & Minerals, Inc., to submit sediment control demonstrations for all small azea <br />exemptions (SAE) located on the SomersedSanborn Creek Mine permit area. Oxbow Carbon <br />& Minerals, Inc. will monitor the flow from the small exemptions to assure compliance with <br />4.05.2(3). Oxbow Carbon & Minerals, Inc. will use its best efforts to obtain samples. <br />The samples obtained for the SAE will be analyzed for pH, conductivity, and total <br />settleable solids. Samples will be in compliance if they contain settleable solid levels of 0.5 <br />ml/l or less and the pH is greater than 6.5 and less than 9.0. Once two samples are taken that <br />confirm compliance, no further sampling will be required unless requested by the Division. <br />Results of the analytical analysis of the sample(s) will be included with each year's annual <br />hydrologic report. <br />On February 21, 1996, during a storm event a sample was obtained for SAE-2. The <br />. area protected by this SAE is the cemetery access road, water tank, and all areas above. The <br />run-off from this azea was directed along the cemetery access road to a culvert that runs under <br />