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Foidel Creek Mine C-82-056 2021 Annual Hydrology Report <br /> 3.3 Surface Water Monitoring <br /> Monitoring /Sampling Requirements: <br /> Stream points have been established within Foidel Creek, Fish Creek, Trout Creek, and Middle <br /> Creek (see Figure 2). Table 3-3A through 3-3C presents the varying frequencies of water level/ <br /> field parameter and water quality monitoring required at each point during the three seasonal <br /> monitoring periods (i.e. October to February, March to May, and June to September), each of <br /> which are further divided into two general categories of sampling frequency: 1) "Regular' <br /> monitoring, and 2) "Contingent' monitoring that is conducted only when there is a discharge from <br /> underground mine pumping at surface discharge sites 109 and/or 115, neither of which <br /> discharged in 2021. Field parameters monitored as part of the "Regular" monitoring include <br /> temperature, pH, and conductivity. Water quality parameters analyzed for "Regular' monitoring <br /> include TDS, total suspended solids (TSS), sodium adsorption ratio, dissolved calcium, dissolved <br /> magnesium, dissolved sodium, bicarbonate, carbonate, sulfate, total recoverable cadmium, total <br /> recoverable mercury, total recoverable selenium, total recoverable silver, total recoverable iron, <br /> total recoverable manganese, total recoverable molybdenum, total recoverable zinc, nitrate and <br /> nitrite, ammonia, and orthophosphorus. <br /> Report period data for 2021, including flow data, graphs of period of record flow, water quality <br /> statistics, and Laboratory TDS and Field Conductivity are included in Attachment 3. <br /> 16 <br />