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APPENDIX A E] E LD ACTV PROTOCOL - 1 • The Sampling and Analysis Plan McWelder, Novemberl, 1994) describes how Forward, Inc. conducts groundwater monitoring for WMU A. The information contained in the Plan supemedes sections related to sampling and analysis in the April 1989 Postclosvrc Plan, Addendum #1 and Addendum #2, The discussion of groundwatersampling methods and procedores discussed in this appendix,Kleinfclder field Activities Protocol, are an excerpt of the more comprehensive Sampling and Analysis Plan, GROUNDWATER MONITORING Monitoring Wells Equipment The groundwater monitoring wells at Forward are equipped with dedicated submerged pumps for purging' and collection groundwater samples., The field technician perfo ° g the groutidwater t monitoring will have a list of equipment that-should be available with .which to complete-the monitoring. The necessary equipment is listed below_ This list includes actual equipmentused • to purge and sample the wells in addition to personal pri6tective gear that must be worn for - prote tion and to reduce the potential far doss contamination of rhe wellsand sannplcs: Some of the equipment used includes various ' , encs which require calibration. C:aIr'bration- w-es are discussed below Calibration Procedures Many of the meters that arc used in the field must be calibrated to produce reliable results. The following discusses calibration rationale,procedures,and frequency for the ° encs. Water Level Indicator Water level indicators must be calibrated regularly to assure that data is not being measured incorrectly due to the cable stretching. To cahibrate the water level indicator the cable is run out to its entire length and measured against a tape measure. The 0 point is the point on the probe which completes the circuit when contacted by the water. This completed circuit causes the 234-83849-Fo I mJ0R32S A-14 2040 da°fere, ?ttly l •