Laserfiche WebLink
,ate <br /> /t—=/VA <br /> A RESNA Company Environmental Solutions <br /> Through Applied Science, <br /> 3164 Gold Camp Drive, Suite 200 Engineering&Construction , <br /> Rancho Cordova, CA 95670 <br /> Phone (916) 852-6690 <br /> FAX (916) 852-6688 SCP 2 5 +}+�*j <br /> EAVIRONMENTAL HEALTH <br /> PERMIT/SERVICES <br /> September 19, 1991 <br /> Ms. Margaret Lagorio <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 1601 East Hazelton <br /> Stockton, California 95201 <br /> Subject: Addendum to Work Plan for a Subsurface Investigation at ARCO Service <br /> Station No. 6100, 25775 South Patterson Pass Road, Tracy, California. <br /> Ms. Lagorio: <br /> As requested in your letter (attached) of August 30, 1991, RESNA Industries (formerly <br /> Applied GeoSystems) is responding to your comments and submitting this addendum to our <br /> previous work plan No. 30041-2W, dated August 5, 1991, for a subsurface investigation at <br /> ARCO Service Station No. 6100, ')S775 South Patterson Pass Road, Tracy, California(Plate <br /> 1). <br /> 1. As per our telephone conversation, eight vapor-extraction wells will be installed <br /> onsite as shown on Plate 2 (Generalized Site Map). The screen interval will be <br /> selected according to field evidence of hydrocarbons in each boring. <br /> 2. Soil samples are to be collected at 5-foot intervals or changes in lithology. <br /> 3. The one soil sample from the borings having the highest reading on the <br /> photoionization detector will be analyzed for total lead using EPA Method 7421. If <br /> total lead is detected, we will discuss with ARCO Products Company (ARCO) the <br /> submittal of additional soil samples to delineate total lead in soil. <br /> 0909miag <br /> 30041-2W <br />