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=� "-7 ?.. 6 cement-grade bentonite, and 94 pounds of API Class A Portland cement will be used for the annular seal. The grout slurry will be placed in the HSA until the HSA is filled with grout to the surface. Sections of the HSA will be retracted and removed (maintaining a level of grout above the lead auger). Grout will be added to the inside of the HSA until filled with grout to the surface. The procedure will be repeated until all HSAs have been removed. A six-inch-diameter protective steel casing with locking cover will be placed over the well and cemented in-place to protect the well. i After well installation is complete and the grout has set for 24 hours, the will will be developed by mechanical surging, using a surge block, and a ° bailer. The development water will be stored on-site in a Baker tank, subject to disposal after analysis. y� ZZ.. The elevation of all three monitoring wells will be determinn'd by land survey. Additionally, the existing well (H-1) will be recompleted for subgrade access after construction of the South Bay Addition. Specific monitoring wall construction details and a geologic log will be recorded by �.. the field geologist/engineer. f 2.3 . Gol]eg tion of Ground Witer Samos Samples of the ground water will be obtained from the three ground water monitoring wells and analyzed for TEPH. The sample results will determine th if any diesel fuel has entered the ground water and migrated in the direction of these wells. U s 6l.��t.� YY1e'f-�iaa� Hater level measurements will be taken in each well prior to sampling, ' Then, each well will be purged of at least three casing volumes using a , < ! bailer or submersible pump. Purge water will be stored on-site in a Baker tank, subject to disposal atter analysis. Following the purge of the well, samples will be collected using a bailer and stared in glass sample containers with Teflo6l-lined caps. oeEnvir�nmen �ttal , 3t -