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SOP No. 66.0 Well Development <br />1.0 PURPOSE AND SCOPE <br />This Standard Operating Procedure (SOP) provides technical guidance and methods that will be <br />used and procedures to be followed for developing groundwater monitoring wells. This SOP <br />gives descriptions of equipment, field development procedures, field data collection, and <br />personnel responsibilities. <br />The purpose of well development is to restore the hydraulic conductivity of the aquifer material <br />surrounding the well to near pre-well installation conditions. This is accomplished by removing <br />well drilling fluids, solids, or other particulates that may have been introduced or deposited on <br />the borehole wall during drilling and well construction activities. Properly developed <br />monitoring wells allow for the collection of representative groundwater samples. <br />2.0 RESPONSIBILITIES AND QUALIFICATIONS <br />The Project Manager or Field Manager has the overall responsibility for implementing this SOP. <br />They will be responsible for assigning appropriate environmental staff to implement this SOP <br />and for ensuring that the procedures are followed. <br />All personnel performing these procedures are required to have the appropriate health and safety <br />training. In addition, all personnel are required to have a complete understanding of the <br />procedures described within this SOP, and receive specific training regarding these procedures, <br />if necessary. <br />All environmental staff and assay laboratory staff are responsible for reporting deviations from <br />this SOP to the Project Manager or Field Manager. <br />3.0 RELATED STANDARD OPERATING PROCEDURES <br />The procedures set forth in this SOP are intended for use with the following SOPS: <br />SOP No. 5.0 <br />SOP No. 6.0 <br />SOP No. 8.0 <br />SOP No. 10.0 <br />SOP No. 13.0 <br />SOP No. 22.0 <br />Monitoring Well Installation <br />Water Elevation Measurements <br />Field Equipment Calibration <br />Decontamination of Sampling Equipment <br />Investigation Derived Waste Management <br />Purging and Sampling Monitoring Wells <br />4.0 EQUIPMENT LIST <br />The following items will be required to develop groundwater monitoring wells: <br />• Well completion logs <br />• Well development records (see Attachment A) <br />• Well keys <br />8/05/08 Pagel of 3 R Squared Inc. <br />Attachment A