Laserfiche WebLink
Metadata
Document management portal powered by Laserfiche WebLink 9 © 1998-2015 Laserfiche. All rights reserved.
22 October 2003 <br />AGE-NC Project No. 03-1043 <br />Page 2 of 4 <br />California's Best Auto Body since the late 1990s. <br />Building 2511 <br />HF Hawley Chemical Corporation in 1966. The Polk city directory listed the lit Hawley <br />Chemical Corporation at the 2511 North West Lane address in 1966; however, a previous <br />AGE investigation in the site area placed the HF Hawley Chemical Corporation at 3909 <br />North West Lane during this same time period. The listing of HF Hawley Chemical <br />Corporation at the site address may be an error. <br />Hobart Manufacturing Corporation from the early 1970s until the early 1990s. <br />In addition to building usage, public records show that three, separate septic systems were installed <br />on the property in 1952, 1961 and 1963 (Figure 2); the approximate locations of the septic systems <br />are based on un-scaled site septic system diagrams (Appendix A) reviewed at the SJCEHD. <br />DRILLING AND SAMPLE COLLECTION <br />The field work was conducted as outlined in the AGE-prepared, Preliminary Subsurface <br />Investigation Work Plan, dated 15 September 2003. Five soil probe borings (B-1 through B-5) were <br />advanced at the site on 10 October 2003 to collect soil samples as part of the assessment activities. <br />The borings were advanced using "direct push" technology, utilizing a truck-mounted Geoprobe <br />5400 equipped with a 2.15-inch diameter soil sampler attached to 1.125-inch diameter probe rods; <br />one soil boring was advanced in the area of each of the three septic systems' leach field, one boring <br />was advanced within a debris pile at the rear of the property, and one boring was advanced inside <br />the 2509 building adjacent to the paint-spray booth (Figure 2). <br />Except for boring B-1, which encountered refusal at 15 feet bsg, the borings were advanced <br />vertically to depths of 20 feet below surface grade (bsg). Soil samples were collected at 5-foot <br />intervals beginning at 5 feet bsg to the total depth of each boring. Each sample was collected <br />utilizing a 1.125-inch Geoprobe soil sampling assembly loaded with four six-inch brass sleeves. <br />After collection, the ends of the second brass sleeve were covered with Teflon sheets, capped and <br />sealed with tape. The sleeve was labeled with soil probe boring location, depth, time, date and <br />sampler's initials and then placed in a chilled container. <br />In addition to the above sample preparation, a soil sample from one of the three remaining sleeves <br />was field-screened for the presence of volatile organic compounds using an photo ionization detector <br />(PD). <br />Following soil collection, all probe-boring locations were backfilled to surface grade with Portland <br />cement. <br />Advanced GeoEnvironmental, Inc.