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Water Quality Monitoring Report <br /> Forward Landfill <br /> Groundwater, surface water, and leachate sampling was performed between August 11 <br /> and September 2, 2014. <br /> Samples were collected from each sample point with sufficient liquid and submitted to <br /> BC for analysis of the routine monitoring parameters stipulated in RWQCB Order No. R5- <br /> 2014-0006. Table 2-1 presents the monitoring schedule and summarizes the analytical <br /> methods utilized during the current monitoring period. Wells AMW-1, AMW-7, AMW- <br /> 10, and AMW-13 were also sampled for total arsenic, nitrogen, iron, and manganese for <br /> the CWLAM program. Water quality samples were also analyzed in the field for ORP, <br /> turbidity, temperature, specific conductance, and pH and recorded on well data sheets. <br /> The groundwater monitoring wells, surface water monitoring locations, and leachate <br /> were sampled in accordance with the sampling and analysis plan detailed in Appendix E. <br /> The well data sheets, raw laboratory data, certificates of analyses, and chain-of-custody <br /> records related to the sampling program are included in Appendix F. Field and <br /> laboratory analyses are summarized in Tables 3-1 through 3-7 and cumulative tabulated <br /> data for all monitoring points and constituents for groundwater, unsaturated zone, <br /> leachate, and surface water are presented in Appendix F. <br /> 3.1.2 QA/QC Results <br /> The QA/QC program completed for the third quarter 2014 water quality monitoring <br /> event at the Austin Unit included analyses of two trip blanks, one field blank, one <br /> equipment blank, laboratory method blanks, and one duplicate sample (well AMW-5R). <br /> The field, equipment, and trip blanks were analyzed for VOCs by EPA Method 8260 and <br /> method blanks were analyzed for all required analyses. The results of the QA/QC <br /> program indicate that no VOCs were detected in the blank samples. Inorganic <br /> constituents including chloride, potassium, magnesium, sodium, and sulfate were <br /> measured at trace concentrations in method blanks. These constituents were measured <br /> at very low concentrations that did not affect the interpretation of primary sample <br /> results. Results from the duplicate groundwater sample collected from well AMW-5R <br /> are presented along with the primary data in Table 3-1. The duplicate sample analyses <br /> yielded good correlation with quantifiable constituents having a RPD less than 7 <br /> percent. Review of laboratory analysis dates and required holding times indicates that <br /> all samples were submitted and analyzed within the required holding times during the <br /> third quarter 2014. Based on the results of the laboratory blank and duplicate analyses, <br /> it is concluded that acceptable QA/QC procedures were exercised and the water quality <br /> samples collected from the Austin Unit appear to be representative of water quality at <br /> the site. <br /> 3.1.3 Groundwater Elevations and Contours <br /> Prior to purging and sampling, each well was sounded for water depth using a weighted <br /> electronic sounder, and the static water level was recorded on a well data sheet <br /> (Appendix F). The groundwater elevations were calculated for each well by subtracting <br /> M:\2014.0012\FA_3Q14.docx 9 <br /> 10/31/2014,Rev.0 <br />