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KLE/NFELDER <br /> eriynweope.xrynrsomrmm. <br /> • 5. DISCUSSION OF RESULTS <br /> The following discussion of results includes groundwater and surface water monitoring <br /> and findings presented in Sections 5.1 and 5.2, respectively. Groundwater findings <br /> include both a shallow perched aquifer and a deeper aquifer and analytical results. <br /> Surface water monitoring includes a summary of surface water flow and chemical <br /> analyses from streams, ponds and discharge points. Section 5.3 includes an overview <br /> of rainfall monitoring. <br /> 5.1 GROUNDWATER MONITORING <br /> Groundwater monitoring was conducted in the shallow perched groundwater zones and <br /> from the deeper groundwater zone noted beneath the site. <br /> 5.1.2 Shallow Perched Groundwater <br /> • The two shallow groundwater monitoring wells (MW-2 and MW-5) located on the <br /> Norman's Nursery property were sampled during the first and second quarter <br /> monitoring events. Because of the lack of additional groundwater elevation data, <br /> groundwater elevation contours could not be drawn for the perched zone in the <br /> northwest corner of the site. <br /> During the first quarter sampling event, groundwater was found to be present at depths <br /> of 9.33 and 15.75 feet from the top of the casings in monitoring wells MW-2 and MW-5, <br /> respectively. <br /> During the first quarter, Nitrate as N was detected in the groundwater samples collected <br /> from MW-2 (an upslope well located in the southeast corner of the nursery) and MW-5 <br /> (a downslope well located in the northwest corner of the nursery) at concentrations of <br /> 26 and 39 mg/l, respectively. Nitrate as N was also detected in 12 of the 13 of the <br /> samples collected from the dewatering discharge during the quarter with an average <br /> concentration of 6.4 mg/l. <br /> • <br /> 117226.E02/ST012R0696 Page 22 of 43 September 14, 2012 <br /> Copyright 2012 Kleinfelder <br />