Laserfiche WebLink
Mar -18-99 02:45pm From-TAIT & ASSOr uTcS/TAIT ENVIR. MGMT (TEM) 7145608235 <br />TAIT Environmental Management, Inc. <br />Environmental . Frlginccring • Compliance <br />March 18, 1999 <br />Letitia Briggs <br />County Of San Joaquin Public Health Services <br />304 East Weber Ave., 3r`1 Floor <br />Stockton, California 95202 <br />• T-150 P 02/05 F-293 <br />SUBJECT: WORKPLAN TO PERIFORM CONFIRMATION BORINGS AT SAN <br />JrOAQUIN COUNTY MOTOR POOL FACILITY LOCATED AT 1810 EAST <br />HAZELTON IN THE CITY OF STOCKTON, CALIFORNIA <br />Dear Ms. Briggs. <br />Tait Environmental Management, Inc. (TEM), is pleased to submit this workplan on behalf of <br />the County of San Joaquin Public Works to perform confirmation borings at San Joaquin <br />County Motor Pool facility (SITE) located at 1810 East Hazelton, in the city of Stockton, <br />California. This workplan has been prepared in accordance with information provided by the <br />San Joaquin County Public Health Services. Environmental Health Division. <br />TECHNICAL APPROACH <br />AREA 3 - <br />TEM proposes to advance one (1) boring by Tanks # 6-8 until 20 feet of uncontaminated soil <br />is encountered or groundwater is detected. If groundwater is identified, the boring will be <br />advanced an additional 15 feet for the installation of a monitoring well. Soil samples will be <br />taken at five-foot intervals. A mobile lab will be used to analyze the soil samples. In addition, <br />TEM proposes to advance one (1) slant boring to a depth of 30 feet bgs. This slant boring will <br />extend north towards Tank #8. Soil samples will lie 6611ected at 20, 25 and 30 feet bgs. See <br />" Figure 1. <br />AREA 4 <br />The County of San Joaquin would like to remove the waste -oil UST and associated piping with <br />bottom soil samples. The UST and associated piping will be triple rinsed & cleaned prior to <br />removal. Confirmation samples will be taken at the bottom of the UST cavity. The <br />excavation will be backfilled and compacted and the concrete will be resurfaced. Tank 8 a <br />1,000 gal UST discovered recently will be abandoned in place. Work includes triple rinse and <br />fill with slurry. The borings for Area 3 will act as the confirmation boring for this UST. <br />701 North Parkcenter Drive • Santa Ana. California 92705 • (714) 560-8200 (714) 560-8235 fax <br />Regional Offices- San Diego • Concord . Sacramento • Phoenix • Tucson <br />www.TAtT_com <br />