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CKLE�/�MfLDER <br /> fli9M Sduianr. <br /> any results by SEWD or others since the December 18, 2000 SEWD sampling. <br /> Kleinfelder has conducted the sampling of the three onsite deep aquifer monitoring <br /> wells. The sampling of the onsite production wells was primarily conducted by others for <br /> the nursery's neighbors. Review of Chart 10 shows a seasonal trend in the Dodge well. <br /> No other trends, seasonal or otherwise, can be ascertained from the data over time. <br /> ' The highest concentrations, with few exceptions, have generally been from the Eason <br /> well. According to San Joaquin County Flood Control and Water Conservation District <br /> reports and the deep aquifer gradients calculated by Kleinfelder's monitoring of DP-1 <br /> through DP-3 to date, flow of the deeper aquifer is towards the southwest. Based on the <br /> I data plotted, it appears that the source(s) of nitrates in the deep aquifer is located off <br /> site in the area of the Dodge and Eason wells. <br /> I5.2 SURFACE WATER MONITORING <br /> The RWQCB's Monitoring and Reporting Program (MRP) No. 97-811 requires that <br /> "Visual inspections shall be made daily at all points at which surface runoff may leave <br /> the nursery and enter Potter Creek. These discharge points include, but are not limited <br /> to, the pipes from the tailwater holding pond (Basin A and B) and the roadside drainage <br /> ditch along Escalon Bellota Road." The MRP required sampling of 3 locations in <br /> addition to all discharge locations. Included in the surface water discussion is the <br /> dewatering discharge. While it is technically groundwater, it is discharged to a basin on <br /> site. Norman's Nursery has consistently exceeded the number of monitoring locations <br /> required. <br /> Surface water monitoring and visual inspections were conducted by Norman's Nursery <br /> personnel. A discussion of the flows, observations and chemical results are detailed in <br /> ithe following sections of this report. For a summary of the flows and chemical results, <br /> please refer to Tables 4 and 5 beneath the "Tables" tab of this report. <br /> 5.2.1 Surface Water Flow <br /> Surface water was observed by Norman's Nursery staff at specified locations from <br /> October 1 through December 31, 2011. Flow rates were monitored for a total of 92 days <br /> during the quarter. Surface water flow data is shown in Table 4 in the Appendix. <br /> 117226.E021ST012RO693 Page 25 of 42 September 11, 2012 <br /> Copyright 2012 Kleinfelder <br />