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Section 2 • groundwater Monitoring Well Installation <br /> over that period and in accordance with ANSIIAWWA Standard C654-03, Disinfection of Wells <br /> (2003). <br /> Figure 2 <br /> Typical Monitoring Well Details <br /> LOCKABLE EXPANDING PRESSURE PLUG <br /> OPTIONAL BOLLARD 6" STEEL CASING W/ <br /> (TYPICAL OF 3)— LOCKABLE CAP <br /> FILL WITH GROUT OR SAND <br /> LAND SURFACE <br /> 8"0 NOMINAL BOREHOLE THROUGH <br /> UNCONSOLIDATED MATERIAL. <br /> VO STEEL CASING <br /> —CEMENT GROUT <br /> SURFACE SEAL <br /> 2" BLANK PVC <br /> CASING <br /> GRANULAR <br /> BENTONITE� BENTT ONITE <br /> WELL SCREEN 15 L.F. <br /> 0 2" 0.020 IN FACTORY <br /> SLOTTED PVC CASING <br /> #2/12 MONTEREY SILICA <br /> SAND FILTER PACK <br /> – THREADED BOTTOM CAP <br /> April 2007 City of Ripon Wastewater Treatment Facility <br /> 2-6 Groundwater Monitoring Well Installation Workplan <br />