Laserfiche WebLink
t <br /> PUBLIC HEALTH SEkVICES <br /> SAN JOAQUIN COUNTY <br /> JOGI KHANNA M.D.,M.P.H. " <br /> Health Officer <br /> P.O. Box 2009 (1601 East Hazelton Avenue) • Stockton,California 95201 <br /> (209) 468-3400 s <br /> August 2, 1989 C(OPY Union Oil Company <br /> 2175 N. California Blvd. , Suite 680 <br /> Walnut Creek, CA 94596 <br /> RE: PROPOSED WORK PLAN FOR PROBLEM ASSESSMENT REPORT FOR UNICAL STATION <br /> NO. 2859, 1665 PACIFIC AVENUE; STOCKTON, SAN JOAQUIN COUNTY. <br /> Please be advised that this office has reviewed the above referenced work <br /> plan. We have found the plan to be adequate provided the following <br /> considerations of both the San Joaquin County Public Health Services, <br /> Environmental Health Division and Regional Water Quality Control Board staff <br /> are addressed. <br /> 1. We recommend the additional monitoring well construction plan be amended <br /> to include continuous core drilling on at least one monitoring well. A <br /> detailed description of the sampling procedure to be used during <br /> continuous core logging should be included in the amendment. <br /> 2. Off-site well construction in public easements will require a copy of <br /> encroachment permits be submitted prior to issuance of monitoring well <br /> permits. <br /> 3. Include a site specific Health & Safety Plan that follows the guidelines <br /> of 29 CFR 1910. 120. <br /> This protection should include the use of personal protective equipment <br /> such as coveralls, gloves, steel toe and shank shoes or boots (leather <br /> or chemical resistant material), safety glasses, and hard hats. <br /> Precautions should be taken to prevent excessive inhalation of/or <br /> exposure to contaminated soils. <br /> We have the following comments regarding the scope of the additional work <br /> necessary to define the problem at this site. <br /> 1. An additional monitoring well installed south of MW-2 is needed to <br /> define the southern extent of the groundwater contamination. The <br /> results from the two proposed monitoring wells, MW-4 and MW-59 should be <br /> useful in selecting the appropriate distance from MW-2 to install this <br /> new well. <br /> A Division of San Joaquin County Health Care Services <br />