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JAN. 9, 2007 1 :42PM WARD REAL ESTATE 879-7213 N0, 396 P. 24 cment seal will extend frorn the bentonite transition seal w the gmund surface. The Portland cement seol will be emplaced by tremie pipe or through the canter of the hallow-stem, augurs in one continuous operation frown, the bottom of the interval to be filled to the top. Exnplac=cm of the Partl9md cement grout speeifically shall not be accomplished by "free fol" £roar the ground surface. The borinS logs will show well construction details. The groundwater monitoring wells will be developed after oompletion, The development proce- dure for each well will consist of pumping or be ling water hm the well until the w8ter is visibly clear, the well goes dry, or until a maxim= of ten casing volumes have been removed. Organic'Vapor Procedures Soil samples collected at 5-foot depth intet'Vals during drilling will be analyzed in the field ,. for ionizable organic compounds using a flame-ionization detector (FM) or a photo- ionization detector (P=)) with a 10.2 eV lamp. The test procedure will involve manuring approximately 30 grarms from an undisturbed soil sample,placing this subsample in a ziplock type bag or in a cleam glw jar, and sealing the jar with aiunimuaa foil secured under a ring typo threaded U_ The container will be warmed for approximately 20 minutes (in the sun), then tha bead-space within the container will be tented for total organic vapor, memured in parts per million as benzene (ppm; volume/volume). The instrument will be calibrated prior M drilling using a LOO-ppm isobutylens staudard (in air) and s sensitivity factor of 55 which relates the photo-ionization potens al of be=ene to that of isobutylene at 100 ppm. Thw results of the field testing will be noted on the'boring logs, ?ID readings are useful for indicating relative levels of con$atnination,bort eaamot be used to evaluate hydrocarbon levels with the emxi"iderroe oflaboratory analyses. ..,-, Laboratory Procedures 'Selected soil samples taken from the monitoring well locations will be analyzed for the presemee of total petroleum hydrocarbons as diesel (TPH-d), total petroleum hydrocsrbvna as gasolirw (TPH,g), and b=aase, tolueame, ethyibetrzene, xylenes (FATE , by BPA Metbods 8015 MMV!ad, and 8020. MOO will be analyzed by EPA. Method 6260 and Total Lead by EPA Method 6010. Selected swnplca taken from Boring B-4 will be analyzed for the above listed analytes plus cis•1.,2-Dichloroethene (cis-1,2 DCE), trams.1,2-Dichlorethene (trans-1,2-DCB), Tetrac„hlorethene ('PCE), and Trichlorethene (TCE) by F-PA Method 8014. One sample from the location of Boring B-4 will be analyzed for 'Fier One MBCA physical paa=eters. Crro=dwatar sarnples collected ftm the monitoring wells and the sarnple calIeczted from Boring S-4 will be submitted to a Ca,liforni's State-certified laharatorlr for enal* Groundwater samples will be analyzed for the presence of TP'H-d, TPH-g, and B''T.EX by M-017.LAM AN A-2 July I$.3998 i