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Re: Site assessment report San Joaquin Local Health District 260 S. Main Street, Manteca, CA September 28,. X989„- Pie 2 of 4_ A. Groundwater depth: The groundwater depth in that area is 20 to 25 feet. 3. s B. Soil removed : The soil removed was returned to the hole as n - smell or discoloration was noted upon tank removal. C. Excavation history: 000 gallon On November 9, 1988, Jim Thorpe 4i1, Inc. removed one 2, les were taken, underground regular gasoline fuel tank. nd ne�from the west end at one from the east end of the excavation a depth of ten feet. Please see enclosed soil sample re5551sand m _ Canonie Environmental, Laboratory Report numbers 85-052 -� 85-052-5586, both dated November " and "C". The 22, 1988, marked "B sample from the east end showed "None Detected° far da shpetroleum showed 77. mg/kg constituants. However, the sample from the west en far Total Extractable Petroleum Hydrocarbons and "None Detected" on ,N . all other petroleum constituants• • r that collected was Canonic Environmental, 4. A. Laboratory the sail samp95206, (20g) 983-13400 ,., 212 Frank West Circle, Suite A, Stockton, CA by brass tube from the teeth of the hoe bucket. A capY of a signed "Release of Information Authorization"is enclosed. 5. A. Re-excavation and resample steps: On August 1, 1989, Jim Thorpe Oil, Inc. reSee the west end of the original excavation with a backhoe to a depth of 14 feet. See drawings marked "1" and 112 The hole was approximately eight feet — wide by eight feet long, equaling 64 square feet. The original sample, of tank removal , was taken at a depth of ton feet. Four at the timend one sidewall samples were collected at this ten foot depth aEnvironment 1 - Canonic — sample from l4 feet All -samples-a�ere_ a i