SITE INFORMATION AND CORRESPONDENCE

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KLE/NFELDER adqu veoe•.rtynesoiom.. • In accordance with the scope of work approved by the RWQCB, the water purged from the wells was not contained. 4.2.1 Chemical Analysis of Groundwater Samples The groundwater samples were submitted under chain-of-custody control to Test America of Morgan Hill, California. Test America is certified by the State of California Department of Health Services (DHS) to conduct the requested analyses. Samples were analyzed on a regular laboratory turnaround schedule, requiring approximately 10 working days for receipt of analytical data. The groundwater samples collected from the monitoring wells were analyzed for Nitrate as N by EPA Method 300.0. In addition, samples collected from the dewatering discharge on an approximately weekly basis were also analyzed for nitrates. 4.3 SURFACE WATER MONITORING • Visual inspections of the nursery were generally made on approximately a daily basis by nursery personnel at points at which surface runoff may leave the nursery and enter Potter Creek (directly or indirectly). These discharge points include, but are not limited to: 1) the culverts/pipes from the tailwater holding pond 2) the roadside drainage ditch along the east side of Escalon Bellota Road 3) the drainage as it enters Norman's property from the south Inspection records indicate whether the gates on the discharge culverts/pipes from the tailwater pond (Basin B) were opened or closed. Kleinfelder initially provided Norman's Nursery personnel with training on the surface water monitoring and sampling. Additional periodic follow-up training and occasional sampling are also conducted by Kleinfelder. Samples were collected by Norman's Nursery personnel and analyzed as indicated below. • 117226.E021ST012R0696 Page 19 of 43 September 14, 2012 Copyright 2012 Kleinfelder