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Technical Revision 25 Schwartzwalder Mine <br /> ' pH will be measured by a probe in the clean water tank or in the discharge pipe immediately downstream <br /> of the clean water tank. <br /> ' 3.2.5 Pollution Control Measures <br /> The reactor tank and the 20,000-gallon treated water tanks are, or will be, placed within secondary <br /> containment that is sufficient to completely contain spills from these tanks. Furthermore, the treated <br /> 1 water tanks and the clean water tank are situated within a bermed area on the mesa, which will prevent <br /> spills from reaching the mine access road. The reactor tank is situated in an area where released water <br /> would be contained within the Sump 10 area, if a spill overtopped the secondary containment. <br /> ' Because of berms and topography, spills from the treated water and reactor tanks will not enter Ralston <br /> Creek. Although no secondary containment is provided for the clean water tank, berms constructed on the <br /> mesa and topography will also prevent this water from flowing directly into Ralston Creek. Therefore, the <br /> combination of monitoring systems (Section 3.2.4), secondary containment, berms, and topography will <br /> prevent environmental and human health impacts associated with the operation of the clean water, reactor, <br /> ' and treated water tanks. <br /> 3.2.6 Demonstration of Adequate Containment <br /> ' As demonstrated on Figures 3-1 and 3-2, secondary containment capacity for the treated water and reactor <br /> tanks are more than sufficient to contain spills from these tanks. Furthermore, additional tertiary berms <br /> ' on the mesa and site topography prevent spills from entering Ralston Creek. <br /> 1 <br /> 1 <br /> 1 <br /> Mine Permit M-1977-300 <br /> Cotter Corporation(N.S.L.) 15 April 2017 <br />