Laserfiche WebLink
ENVIRONMENTAL <br /> MANAGEMENT <br /> I N C <br /> RECE <br /> June 27, 1996 J �l� 0 1 X996 <br /> ENVIRONMENTAL HEALTH <br /> Ms. Mary Meays pERM1T f SERVICES <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue., Third Floor <br /> Stockton, California 95201-0388 <br /> SUBJECT: Drilling Permit and Additional Site Assessment Work Plan Information <br /> Federal Building <br /> 401 North San Joaquin Street <br /> Stockton, CA 95202 <br /> Site Code: 505260 <br /> Cape Project No. 2403C.41 <br /> Dear Ms. Meays: <br /> Please find the enclosed permit application and payment for the construction and/or installation <br /> of one (1) monitoring well and four (4) soil borings. Work will performed according to the <br /> previously submitted Work Plan, dated October 1995. As per our discussion, an additional <br /> boring will be advanced in the area of S-4 at 16 feet in the eastern portion of the excavation. Soil <br /> samples will be obtained from this location to determine the extent of contamination. Location <br /> of this additional boring is indicated on the enclosed diagram. In an effort to provide additional <br /> lithologic site information during this investigation, CAPE intends to advance one (1) of the <br /> vertical soil borings using.a continuous core sampler to obtain a more detailed logging of <br /> subsurface conditions. As discussed, it may be prudent to obtain additional soil samples for <br /> analysis of soil moisture and permeability. These additional analyses will assist in the <br /> preparation of a fate mode, such as SESOIL, in the event that contamination is present only in <br /> the unsaturated zone. Soil moisture analysis will be performed using ASTM test method D2216 <br /> and falling head permeability analysis will be performed using California test method CA220. <br /> Mitchell Drilling will perform drilling services for this project and they have been informed to <br /> forward an authorization letter in reference to the permit application. <br /> env\gsa\2403c.41\permit.doc <br /> 20280 South Vermont Avenue 1 <br /> S u i t e 2 5 0 <br /> Torrance, California 90502 <br /> 310 532 4500 <br /> FAX 532 6022 <br />