Laserfiche WebLink
Mr. Gerald Djuth <br /> March 6, 2003 <br /> Page 3 <br /> All groundwater samples will be analyzed by the standard project method for analysis of <br /> halogenated VOCs (Method SW 8021B) using the same detection limit (0.5 µg/L). All <br /> groundwater sample analyses will be performed by SPL, Houston, TX, which is the <br /> laboratory that regularly performs all water analyses for semiannual groundwater <br /> monitoring and bi-weekly treatment system discharge compliance. <br /> Grouting and Waste Handling <br /> -All boreholes will be sealed by grouting immediately following collection of the samples. <br /> Grout will be emplaced from the bottom up using a bentonite/cement mixture in <br /> compliance with drilling permit requirements of San Joaquin County Public Health <br /> Service, Environmental Health Division. All waste water produced by equipment <br /> decontamination and purging will be contained and disposed into the groundwater <br /> treatment system influent tank and solid wastes will be hauled away by the drilling <br /> subcontractor for proper offsite disposal. <br /> Proposed Schedule <br /> Implementation of work plan activities is tentatively scheduled to take place two weeks <br /> after RWQCB acceptance of this plan. A report would be prepared containing <br /> recommendations and submitted to the RWQCB within six weeks after completion of all <br /> analytical work. <br /> Please call me at our Walnut Creek office at (925) 941-3723 or contact Bill Barber at <br /> (216) 271-8038 if you have any questions or require clarification. <br /> Very truly yours, <br /> P7L�/�/ s <br /> / i <br /> Frederick. . Kmtzer, C.E.G. <br /> Proj ect anager , <br /> Attaclurnents: <br /> Figure 1 —Proposed Soil Vapor Boring Locations <br /> Attachment A—Description of PRT Soil Vapor Sampling System <br /> cc: Mr. William Barber, Group Environmental Management Company <br /> Ms. Margaret Lagorio, San Joaquin County PHS, Environmental Health Div. <br /> Mr. Lon Kitagawa, Applied Aerospace Strictures Corp. <br /> SV surrey%p_Mw-5R.doc 3%6'03 <br />