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Fdmnry 1001 Haman GJdi Tarsun~ /z • 7000 Arran! N~dogy Rix[ ~ Pate 3 <br />' 3.0 HYDROLOGIC MONITORING <br /> 3.1 SAMPLING AND MEASURING TECHNIQUES <br /> Field conductivity and pH metes were calibrated prior to each days use. The conductivity meter was <br /> calibrated using a potassium chloride solution with an electrical conductivity in the 78 to 6,668 micro- <br />' Siemens per centimeter (NS/cm) range. The pH meter was calibrated usmg NBS traceable buffers <br /> with pH values of 7 and 10. Groundwater level measurements were taken with a water level indicator. <br /> Surface water flow was measured with a Flow Probe ponable velocity meter. <br />' <br /> Table 1, CDPS Avs~jtiral List, presents the parameter list for the ®PS samples. Table 2, Srnfa¢ Water <br /> Aml~lital List, shows the laboratory analyses for the surface water samples. Table 3, GmcrEutuer <br />' Aml~ttta! List, presents the laboratory analyses for the groundwater samples. Analyses were performed <br /> by ACZ Laboratones, Inc. (ACZ) of Steamboat Springs, Colorado. ACZ performs all analyses by <br /> EPA or equivalent methods. Samples were hand-delivered to the lab the day of collenion in an iced <br />' cooler. <br /> 3.2 SURFACE WATER DATA <br />' 3.2.1 CDPS Monitoring <br /> There are two CDPS monitoring sites at the Loadout, the Truck Loop Pond (Outfall OOIA), identified <br />' as NPDESIH in the data summary tables, and the Rail Loop Pond (Outfall 002A), identified as <br /> NPDES2H in the data summary tables. The locations of the two CDPS monitoring saes are shown <br /> on Figure 1,MautwirgSveLarntio:Map. <br />' During 2000, no discharge was observed at either site. Appendix A includes a listing of water quality <br /> statistics for previous years tior the Loadout ®PS sites. <br /> Per the requirements of the CDPS permit, No. COG-850008, quanerly Discharge Monitoring Reports <br /> (DMRs) were submitted to the appropriate regulatory agencies. Copies of the 2000 DMRs are <br /> provided in Appendix B, ®PS Discharge Monitoring Reports. <br />' <br /> 3.2.2 Stream Monitoring <br />' Two stream monitoring locations were sampled in the vicinity of the Loadout along Dry Creek. <br />Permit specified monitoring consists of semi-annual (spring and fall) monitoring for flow and water <br />quality. The upstream surface water monitoring site (HGSDI) is located approratnately 1.5 miles <br />' upstream of the Loadout permit boundary. T'he downstream surface water monitoring site (HGSD3) <br />is located imtnediately downstream of the Loadout. The locations of HGSDl and HGSD3 are shown <br />on Figure 1,MvctorvigSiteLa¢uwnMap. <br />' Surface water quality data For 2000 are included in Appendix C, Swfa¢ Water Qualiry Data. Water <br />quality analyses for bath HGSD1 and HGSD3 indicates that constituent concentrations were generally <br />within the range of previously observed values. The only constituent with a value outside its <br />' previously reported range was boron. The June sample at HGSDl had a boron concentration of 0.27 <br />milligrams per liter (mg/1), which was slightly higher than prenously observed values (the previous <br />maximum concentration was 0.23 mg/1). ' <br />1 <br />' MorabmeryWaaot •P.Q Bar 774018 •SramfuaSpog, CU80477 •(970J 8796160 <br />w~m~mnx~.y,~:amnxR Iyntr <br />v/a w <br />