SITE INFORMATION AND CORRESPONDENCE

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s T, PUBLru H SERVICES SAN JOAQUIN COUNTY JOGI KHANNA M.D.,M.P.H. Health Officer P P.O. Box 2009 0 (1601 East Hazelton Avenue) • Stockton, California 95201 CA�fFORa, (209)46&3400 MAYO 2 1991 D LOWELL MARCUS PACIFIC BELL 2 NORTH SECOND ST RM 675 SAN JOSE CA 95113 RE: Pacific Bell Facility UE042 IN REPLY REFER TO SITE CODE: 1867 345 N. San Joaquin St. Stockton, CA 9S202 Public Health Services, Environmental Health Division (PHS/EHD) has completed it's review of the March 1991 Work Plan submitted by IT Corporation for the above referenced site. We have found the plan to be adequate provided the following consideration are addressed. According to the San Joaquin County Assessor's information, the property belongs to A.T. and T. According to Tri-Regional Recommendations, please be informed that technical assistance for completing reports and work plans may be provided by environmental consultants in the private sector, however, reports,documents, and plans which contain engineering,geology, and/or geophysical information must be prepared under the direction of properly licensed individuals in the State of California (Sections 6735,7835, and 7835.1 of the California Business and Professions Code). Responsibility for the technical information is indicated by the signature and/or stamp of the seal of the licensed individual. More than one signature and/or seal my be required where more than one professional specialty is included in the technical document submitted. Please submit documentation indicating that the March 1991 Work Plan was prepared under the direction of a licensed individual. The Utility Map, Figure 3, failed to locate a number of structures found in the sidewalks adjacent to the Pacific Bell building. Please provide a more detailed map identifying these structures. Figure 4, Proposed Monitoring Well Locations, indicated that the wells will be drilled in the sidewalks adjoining Hunter Street, Lindsay Street and North San Joaquin Street. Off-site well construction in public easements will require encroachment permits from the City of Stockton and copies must be submitted prior to issuance of monitoring well permits. Additionally, please submit a monitoring well permit application, signed by the driller, or a letter of permission from the driller with a C57 license for your consultant to sign, and a check for $89.00. All samples collected, soil and water, must be stored at 4°C in an ice chest in the field and during transport. Please be informed that this office requires 48 hours prior to any site activity. The detection limits outlined in the work plan for water are according to the LUFT Manual, appropriate for soil. Please revise water detection limits to reflect those outlined in the LUFT Manual. If used oils are suspected contaminates, analysis for chlorinated hydrocarbons and metals (Cd, Cr, Pb, Zn, and Ni) should be performed. A Division of San Joaquin county Health Care Services ��