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Well J2evr.1n1RmPnt <br /> After installation, all momtonng wells shall be developed to remove fine grained sediments <br /> from the well and to stabihze sand, gravel and disturbed aquifer materials in the annular area <br /> around the screened interval. Well development will be accomplished by air-lift pump, <br /> suction-lift pump, submersible pump, bladder pump, surge block,bailer or any combination of <br /> the above All well development equipment will be decontaminated prior to development using <br /> a steam cleaner and/or tnsodium-phosphate solution wash, clean water rinse, and steam <br /> distilled water rinse. Well development will continue until each well is relatively free of <br /> turbidity The adequacy of well development will be assessed by a HETI geologist. Where <br /> appropriate, indicator parameters (pH, specific conductance, temperature, and turbidity) will <br /> be monitored during well development. Field instrument calibrations will be performed prior to <br /> use according to manufacturers specifications <br /> Well -Head Completion and Site Clean-up <br /> Monitoring wells shall be completed below grade unless special conditions exist that require <br /> above grade design Monitoring well casing (including the well locking seal and cap) will be <br /> completed approximately two inches below the vandal resistant traffic rated road box cover. <br /> Except in areas where snow plows might be used, the road box cover shall be completed <br /> approximately one inch above the existing grade surface to allow for precipitation runoff All <br /> concrete work,both inside and outside the road box,shall be completed with a smooth finish. <br /> Above ground completions will be set inside a 2 to 3 foot tall locking steel protective casing. If <br /> traffic conditions dictate, three 4-inch diameter steel pipes will be set in concrete in a <br /> triangular pattern to act as bumper posts The posts will be set 2 feet deep and will be filled <br /> with concrete. A four foot square, 3-mch thick concrete pad which slopes away from the well. <br /> will be set around each well Both the protective steel well casing and the bumper posts will be <br /> painted yellow <br /> The project site shall be left as clean as possible All souls and excess concrete produced from <br /> each monitoring well will be placed in appropriate areas to be disposed as previously <br /> described. All monitoring well locations will either be broomed or washed down such that <br /> staining of the existing surface cover is minimized <br /> i <br /> r <br /> I <br /> 4 <br /> ! I ' <br /> I <br /> I <br />