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1.3.2 Ground Water <br /> Purgatoire Alluvium - Stations PAW-1, PAW-2, PAW-3, PAW-4, PAW-5 and PAW-6. <br /> These stations will be monitored quarterly for water level, pH, conductivity and <br /> temperature. In addition, an annual sample collected in November will be analyzed <br /> for the water quality parameters listed in Table 2 of the letter. Station PAW-6 will <br /> also be monitored quarterly for total dissolved solids, total suspended solids, total <br /> combustible solids, bicarbonate, sodium, iron and manganese. This data will be <br /> utilized to assess potential impacts of mining and surface activities. <br /> Ciruela Canyon Alluvium - Station CCAW-1. <br /> This station will be monitored quarterly and annually for the same parameters as <br /> described for PAW-6. The data will be utilized to assess potential impacts of mining <br /> and surface activities. <br /> Apache Canyon Alluvium - Station ACAW-1. <br /> Following assessment of baseline data collected from the flume and projections of <br /> impacts associated with the five year mine plan, MLR approved discontinuation of <br /> monitoring until further disturbance is proposed in this canyon. <br /> 2.0 MONITORING METHODS <br /> 2.1 Surface Water <br /> Monthly surface water samplings were conducted at each of the seven designated <br /> stations PRS-1, PRS-2, PRS-3, MDNE-1, MDGE-1, CCS-1 and CCS-2. Quarterly surface <br /> water samplings were conducted at each of the four designated stations CCS-I, CCS-2, <br /> MDNE-1 and MDGE-1. Annual water quality sampling will be conducted during November <br /> for each station. <br /> During each monthly sampling, in-situ water quality measurements of temperature, <br /> conductivity and pH were made using a Hydro Lab Model 4000 field sampling kit. An <br /> expanded list of water quality parameters was collected during the quarterly sampling <br /> which were sent to Core Laboratories, Inc., of Denver for laboratory analysis. Filtration <br /> of certain water quality parameters was accomplished in the field with a Geotech 2.4 liter <br /> barrel filter. <br /> -11- <br />