Laserfiche WebLink
MM <br /> � emcon <br /> 1433 North Market Boulevard . Sacramento. Califomja 45B3A� 7943 . (916) 928-3300 . Fax (916) 928-3341 <br /> January 31 , 1996 <br /> Project 0805- 140.03 <br /> Mr, Will Smith <br /> Lincoln Properties <br /> 374 Lincoln Center <br /> Stockton, California 95207 <br /> Re: Authorization to Install Three Monitoring Wells at 1704 Hammer Lane, Stockton, <br /> California (Parcel No. 077-280-29 of the San Joaquin County Assessors Map) <br /> Dear Mr. Smith: <br /> At the request of ARCO Products Company (ARCO), EMCON is conducting a subsurface <br /> environmental investigation at ARCO Service Station No . 548 at 1612 Hammer Lane, <br /> Stockton, California. In conjunction with our on-site investigation, ARCO has requested <br /> that EMCON perform an off-site environmental investigation at nearby properties. <br /> This letter is to request authorization for EMCON and its subcontractors to drill three <br /> borings and install three monitoring wells on your property at 1704 Hammer Lane, <br /> Stockton, California (Parcel No . 077-280-29 of the San Joaquin County Assessors Map). <br /> The parcel is west and south of ARCO Service Station No. 548 . The proposed <br /> environmental investigation for your property will provide data on the condition of soil and <br /> groundwater south of the ARCO station and will assist EMCON in complying with San <br /> Joaquin County Public Health Services (SCJPHS ) requirements that hydrocarbons in soil <br /> and groundwater be delineated. <br /> EMCON has enclosed ARCO's Access Agreement and two figures . Figure 1 is an area site <br /> map showing features near ARCO Service Station No . 548 . Proposed well locations are <br /> also shown on Figure 1 . Figure 2 is a well details sample sheet showing the construction of <br /> a typical monitoring well installed by EMCON for projects throughout California. <br /> The monitoring wells will be drilled using a truck-mounted drill rig with 8- to <br /> 10-inch-diameter augers. A 2-inch-diameter polyvinyl chloride casing will be installed in the <br /> boring. For safety and security reasons, the top of the casing will be fitted with a locking <br /> cap and an aluminum cover with specially designed fasteners. The aluminum cover will be <br />` set approximately 1/4 inch above surrounding grade. Each boring will take approximately <br />` 3 hours to drill, and the monitoring wells ' construction will take approximately 3 hours. <br /> EMCON anticipates the work will be completed in approximately 2 days. Two <br /> subcontractor personnel will operate the drill rig, and a geologist from EMCON will be <br /> SACVAWTkWILSMITH.ACC-95\dms2 <br /> Ll <br />