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HAZARD N4NAGEMENT CONSUW ING, INC. <br /> November 23, 1998 <br /> Mr. Steve Sasson <br /> San Joaquine County Public Health Services <br /> Third Floor <br /> 304 East Weber Avenue <br /> Stockton, California 95202 <br /> Subject: Removal of diesel fuel impacted soil at Crossroads Center, Lathrop, <br /> California <br /> Dear Mr. Sasson, <br /> Diesel impacted soil, apparently resulting from a ruptured fuel tank on a truck, was found <br /> in a test pit dug to assess the dewatering efforts at the west end of the D'Arcy Parkway <br /> extension. Approximately 100 to 125 cubic yards of soil was then excavated and several <br /> thousand gallons of impacted groundwater pumped from the excavation under the <br /> direction of ATC Associates. The San Jouquin County Health Department was notified <br /> and approved the continuation of construction work if any additional oily soil or <br /> impacted groundwater be addressed. <br /> The installation of the storm drain was resumed and approximately 100 cubic yards of <br /> additional soil excavated under the direction of a Registered Geologist from <br /> Groundworks Environmental, a copy of their report documenting activities is included for <br /> your review. Excavated soil was saturated with water and was allowed to stand in a <br /> stockpile and dry over the summer in order to reduce the total tons of soil sent off site. A <br /> total of 325 tons (approximately 215 cubic yards) of diesel fuel impacted soil was <br /> removed from the site on October 16, 1998. Disposal documents will be provided as <br /> soon as they are received. <br /> If you have any questions or need additional information, please call me at my direct <br /> number(949) 587-0340 pr page me at (949) 588-5219. <br /> Ve truly yours, <br /> azar Management Consulting, Inc. <br /> 6--- <br /> David M. He rRG., .E.A. <br /> Associate <br /> cc: Mr. Brian Vallis, Boomer Construction <br /> Mr. Chris Kazantis, AEW Capital Management <br /> 1528 Via Tulipan•San Clemente,California 92673•(714)361-3902•FAX(714)361-3697 <br /> 101 Federal Street 19th Floor • Boston,Massachusetts 02110 • (617)695-1695 • FAX(617)695-1795 <br />