Laserfiche WebLink
DX B&RMAOp . & a�SSOCIAI'ES <br /> 8710 Mt.Vernon Rd.,Auburn,CA 95603 Phone/Fax(530)823-2156 <br /> October 5 2007 E C U E DD <br /> OCT 1 5 2007 <br /> Mr. Harlan Knoll, Senior REHS <br /> San Joaquin County Public Health Services ENVIRONMENT HEALTH <br /> Environmental Health Division PERMIT/SERVICES <br /> 304 E Weber Ave., Third Floor <br /> Stanton, CA 95202 <br /> Dear Mr. Knoll, <br /> Remediation Excavation Schedule <br /> Western Oil & Spreading Acampo Plant Site - <br /> 19256 N Highway 99, Acampo, CA <br /> This memorandum confirms the understanding between Dan Barber and you on 5 <br /> October 2007 regarding excavation and treatment of diesel contaminated soil at <br /> the subject site. <br /> Acknowledging that soil contamination exists at the site in the north eastern <br /> quadrant of the site, Western Oil & Spreading (WOS) has committed to <br /> remediation of the contaminated soil. <br /> The agreed approach will involve excavation to a yet to be defined depth and <br /> acceptable hydrocarbon residual limits. The leaking underground storage tank <br /> source was removed several years ago. Overlying structures including all <br /> tankage, process pumps, heater and electrical equipment as well as a <br /> surrounding concrete block containment wall were removed during recent months. <br /> The excavation area is slightly above natural grade and does not collect drainage <br /> from the surrounding area. <br /> The remainder of the site continues to support manufacturing and shipment <br /> staging of asphaltic road surfacing material in fulfillment of contracted sales to <br /> China. While the economic gain from export sales is advantageous the working <br /> area for onsite soil remediation has been restricted. <br /> Continued quarterly monitoring of subsurface water contamination has witnessed <br /> a general reduction of diesel contamination levels in down gradient monitoring <br /> wells surrounding the contamination zone. <br />