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Drilling, monitoring wells

The Company and its consultant decided more monitoring wells were needed to better define the situation, and a new drilling program was initiated. [Pg.20]

Monitoring Well Design Components Monitoring Well Drilling Melhods... [Pg.407]

Identify and secure a subcontractor for specialized sampling, such as the drilling for the installation of monitoring wells and placing of boreholes for soil sampling... [Pg.87]

Injection and monitoring systems. An injection well (A in Fig. 16.7), 500 m deep, was drilled into the lower confined limestone aquifer, and later a second well (B) was drilled 400 m west of the first one. A deep monitoring well, 400 m south of A, was drilled into the receiving aquifer. A shallow monitoring well was drilled into the upper limestone aquifer, 30 m from injection well A. Hence, changes in the chemical composition could be monitored both in the receiving and overlying aquifers. [Pg.351]

WELL LOCATIONS. PUBLIC, PRIVATE, AND MONITOR WELLS i NEWLY DRILLED WELLS H15DAN0LP1... [Pg.282]

Several methods are available for the drilling and installation of monitor wells. The advantages and disadvantages relating to ease of construction, character of formations penetrated, well diameter and depth, risks of contamination, and intended use of the well have been reported by several investigators ( 5, 6, 7). All field personnel should be thoroughly familiar with well specifications, quality assurance/quality control procedures, and safety plans and requirements prior to installation of monitor wells. [Pg.166]

Drilling. Common drill rigs available for monitor-well installation include cable tool, air rotary, mud rotary, reverse rotary, and hollow-stem auger. The cable tool rig repeatedly lifts and drops a drill bit, drill stem, drilling jars, and rope socket. The drill bit crushes hard rock or loosens unconsolidated material and mixes the loosened particles with water to form a slurry or sludge. The sludge is removed at intervals by a sand pump or a bailer. [Pg.166]

No testing was done as part of this investigation of interceptor and monitoring wells drilled on-site but a number of tests were made on Thornton Spring water samples 0.9 km below the plant. [Pg.269]

For example, contamination was recently noted in the aquifer at Cape Cod, Massachusetts, requiring the Air Force to supply the residents with bottled water. The contamination at Cape Cod was discovered by an environmentalist who noticed chunks of undetonated explosive while touring the range. That forced the Air Force to drill some groundwater monitoring wells and, to everyone s surprise, the aquifer was contaminated with RDX. [Pg.39]

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See also in sourсe #XX -- [ Pg.792 , Pg.796 ]



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