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APPENDIX D <br />' PROTOCOL FOR OBTAINING WATER SAMPLES <br /> FROM EXPLORATION BORINGS <br /> 1.0 INTRODUCTION <br />' This protocol describes procedures to be followed for collecting water samples in conjunction <br /> with the installation of exploration borings in the vicinity of the project site. Selected <br />' groundwater samples will be submitted to a designated subcontracted laboratory for chemical <br /> analysis. The subcontracted laboratory must be certified by the California Department of Health <br /> Service (DHS) for the analyses requested. The procedures presented herein are intended to be <br />' of general use. As the work progresses and if warranted, appropriate revisions will be made <br /> and approved in writing by the Boyajian & Ross, Inc. (B&R) project manager. <br /> 2.0 ADVANCEMENT OF BORINGS <br /> The advancement and backfilling of soli borings will be in accordance with the protocol <br /> presented in Appendix B <br /> 3.0 SAMPLING AND LOGGING <br /> Groundwater samples will be collected in accordance with the protocol presented in Appendix <br /> B A sample bottle, provided by the subcontracted laboratory, will be filled to overflowing to <br /> avoid trapping air at the top of the container A cap will be screwed on tightly immediately <br /> after filling the bottle and checked to verify no headspace is present The samples will then be <br /> labeled and placed in an ice-cooled chest immediately following collection Rubber gloves will <br />' be worn by field personnel while collecting groundwater samples. <br /> A water quality sampling record (Figure D-1) will be used to record the following information <br /> o Sample number (or name). <br />' o Date and time sampled <br /> o Boring designation <br /> o Project's name, or other common designation for water supply wells <br />' D — l D 1981171PROT000L WPP[ <br /> BOYAJIAN & ROSS, INC <br /> Environmental Scientists & Engineer+ <br />