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KLE/NFELOER <br /> ��engnw.oek.erynesmrloo:. <br /> • Sample <br /> Location Sample Location <br /> No.` <br /> S-4 Potter Creek under the east side of the Escalon Bellota Road Bridge <br /> Duarte <br /> Runoff Runoff entering Norman's property from the south <br /> The gate valves for the discharge from Basin B were reportedly in the following <br /> positions throughout the fourth quarter of 2011. <br /> Date Basin B Gate valve Position <br /> January 1 to 23, 2012 Closed <br /> January 24 to May 23, 2012 Open <br /> May 24 to June 30, 2012 Closed <br /> 5.2.2 Chemical Analysis of Surface Water <br /> During the first and second quarters of 2012, the surface water monitoring locations <br /> • were monitored in accordance with the MRP. <br /> The Duarte property is located south of Norman's Nursery and is an active vineyard. <br /> Runoff water from the Duarte property was collected three times during the first quarte <br /> and one time during the second quarter of 2012.. <br /> The concentrations of nitrate as N did not exceed the associated MCLs in any of the <br /> surface water samples collected during the first and second quarters with the exception <br /> from location D-1. Samples collected from location D-1 exceeded the nitrate as N MCL <br /> in 4 of 8 samples collected during the first quarte and 3 of 8 collected during the second <br /> quarter. The Water Quality Goals for Ammonia as N, including the Suggested No <br /> Adverse Response Level of 30 mg/I and the Taste and Odor Threshold of 1.5 mg/I were <br /> not exceeded in any of the samples collected from the site during the first and second <br /> quarter. For details regarding the analytical results please refer to the summary in Table <br /> 5 and the laboratory data sheets in Appendix C. <br /> • <br /> 117226.E02/ST012R0696 Page 27 of 43 September 14, 2012 <br /> Copyright 2012 Kleinfelder <br />