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April 14, 2005 r] 0 SAN JOAQUIN COUNTY ENVIRONMENTAL HEALTH DEPARTMENT 304 East Weber Avenue, 3/d Floor, Stockton, CA 95202 Telephone (209) 468-3420 Fax (209) 464-0138 MEMORANDUM TO: File (23023 South Santa Fe Road) FROM: Frank Girardi SUBJECT: Ash/soil samples taken on April 13, 2005 Conducted Site visit with Robert M. to observe soil/ash samples taken by Ground Zero staff. Peter Palamino was present. Three separate soil stockpiles were located at the south end of the parcel (Fig 1). The soil piles came from the immediate area surrounding the piles (Fig 2). The soil samples were taken at different location in each pile (Fig 3). The soil sampling system ij as follows: Soil Pile 1 (SP1) - Four to one composites (four samples taken at four different spots in the pile to be analyzed as one whole sample). SP1(a) — Mix dark(ash) and sandy loam SP 1(b) — Mostly ash and some sandy loam SP 1(c) - Sandy loam with some ash SP 1(d) — Mostly sandy loam Soil Pile 2 (SP2) — Two to one composites (two samples taken at two different spots in the pile to be analyzed as one whole sample). SP2(a) — Mostly ash with some sandy loam SP2(b) — Sandy loam with mix of ash Soil Pile 3 (SP3) — Two to one composites (two samples taken at two different Piles — one at each pile). SP3(a) — Mostly ash SP3(b) — Mostly ash The samples are to be analyzed by Argon Laboratories (DHS Certification # 2359). The samples will be tested for Cam 17 metals, PH levels, Semi-VOC's, PBC's, and total petroleum hydrocarbons. Copies of the test results are to be submitted directly to San Joaquin County EHD. The results of the samples will determine the characterization of the ash/soil waste. The soil/ash waste will be transported either to Forward Landfill (class I1) or Kettleman Hills (class 1), depending on the results of the analysis. EHD 48-02-015 Page 1 of 2/24/2004