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settlement, Contractor shall place additional neat cement to a level as indicated in the construction figures. 20.Contractor shall install the well enclosure and surface completion only after the neat cement has hardened. E. Contractor shall record the following information on the Driller's Log: 1. Driller's lithologic log 2. Depth to first water 3. Depth to water-bearing zones 4. Total depth of borehole 5. Borehole diameter 6. Depth from ground surface to top and bottom of the well screen interval 7. Depth from ground surface to top of the gravel envelope 8. Depth from ground surface to top of the bentonite plug 9. Height above the ground surface of the top of the well casing 10.Height above the ground surface of the top of the steel protective casing. 3.02 SURFACE COMPLETION A. Contractor shall clean the well enclosure housing with high-pressure hot water/steam prior to installation to ensure that it is free of contamination. B. Contractor shall install well enclosure plumb. C. Contractor shall cut the well casing pipe to minimum required height. The well enclosure lid shall open and close smoothly providing space for pump discharge tubing and pump lead wires. D. Contractor shall remove the PVC end caps from the top of the casing and then install well plugs. E. Contractor shall place coarse sand in the annular space between the enclosure and the well casings. The sand shall be placed six inches below the top of the well casings. F. Contractor shall clean cement grout from the well casing and enclosure prior to painting. G. Contractor shall apply the final coat of paint on the enclosure and then shall label the enclosure with the well number provided by the Engineer after installation. H. Contractor shall install bollards plumb. North County G-15&G-16 San Joaquin County Groundwater Monitoring Well Specifications 9 Public Works Dept Solid Waste Division