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File No. 20-3978-01.7 2 KLEINFELDER November 12, 1996 Hand Auger Soil Sampling Soil samples will be collected at depths of 0 to 6 inches (i.e. the surface), and three to five feet below the pond bottoms. The proposed sampling locations arc shown on Plate 2. The proposed number and location of the hand auger borings/samples is described below. Sampling Location Number of Hand Sample Total No. of Auger Borings De th s * Sam les Existing Waste water Ponds 3 per pond Surface 4ponds) total of 12 and five feet 24 Former Waste water Ponds 3 per pond Surface 7ponds) total of 21 and three feet 42 Finger Ponds 2 per pond Surface 2ponds) total of 4 and three feet 8 Existing Mud Ponds 3 per pond Surface 4ponds) total of 12 and three feet 24 Former Beet Pulp Drying Pond Surface 1 and total of 5 and three feet 10 Representative Random Locations ' total of 12 One foot 12 * Sample depths from existing pond bottoms or site grade. A decontaminated hand auger will be used to advance each soil boring to the desired sampling depth. Soil samples will be obtained by driving a 2-inch diameter by 6-inch long brass tube into the soil using a slide hammer. The brass tube is then removed from the boring and sealed with Teflon sheeting and plastic end caps. The sample is then labeled, and placed in an iced cooler pending transportation to the analytical laboratory under chain of custody protocols. Augering and sampling equipment will be decontaminated between borings and as necessary to prevent cross contamination. Water used to decontaminate equipment will be disposed of in the existing waste water ponds. The hand auger borings will be logged, and sampled according to the protocol described in Attachment B. The soil samples collected will be field screened using an organic vapor detector as described in Attachment B, Section B-2.2. The hand auger borings will be backfilled with the cuttings generated during sampling. Laboratory Analysis One soil sample from each hand auger location will be selected for quantitative analysis will be submitted under chain-of-custody control to Sequoia Analytical Laboratories (Sequoia) of Sacramento, California. Sequoia is certified by the California Department of Toxic Substances to perform the requested analyses. It is anticipated that samples will be analyzed on a normal laboratory turnaround schedule, which usually requires up to 10 working days for receipt of analytical data. 20-3978-OI.PO2/MP960132/WR960015 Page 2 of 01996, Kleinfelder, Inc.