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ExAiBrr F--Z San Joaquin Local Health District Re. Re-Excavation/resample work plan Jud 14,~1989 - Page 2 of 2 _ _ _ 303 N. Pilgrim, Stockton , CA Projected additional excavated soil will be 769 cubic yards - requiring a minimum total of 31 soil samples. Soil samples will be taken as follows - 12 side wall samples -- 3 samples from the center of each wall at 5 foot intervals 1n depth, starting at 13' (i .e. 13' , 18' and 23' ) . See Drawing "D" for side view of existing excavation, proposed excavation, and proposed side wall sample locations. 9 bottom samples spaced evenly across the length and width of the hole See Drawing "E" showing top view of existing excavation, proposed excavation, proposed placement of excavated soil and bottom samples. 10 remaining samples w}11 be composite samples of the excavated soil . The 2�' side wall samples and the bottom samples will be analyzed first so a deter- mination can be made regarding the need to analyze the shallow side wall samples We will test the soil as shown on the enclosed copy of Minimum Verification Lab Analyses (highlighted areas) . Disposition of the excavated soil will be addressed upon soil analysis result return If the leve; of contaminates show too high for treatment on site, the soil will be transported to a proper hazardous waste facility for disposal , namely Kettleman City, or possibly a Class 2 site, such as forward , Inc. If the soil 1s removed from the site, it shall be transported under proper licensure Any manifests produced during transfer shall have a copy provided to SJLHD within 30 days. 6 Timing- Sampling could be scheduled within one week following your review of this work plan. Advance inspection notice of at least 48 hours will be given to SJLHD for resampling inspection. The sample analysis should be ready for review within three weeks after they have been taken.