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SOP #: GW 0001 <br />Region I Low Stress <br />(Low Flow) SOP <br />Revision Number: 2 <br />Date: July 30, 1996 <br />Page 9 of 13 <br />Flush with non-phosphate detergent solution. If the solution is <br />' recycled, the .solution must be changed periodically. <br />Flush with potable or distilled/deionized water to remove all of <br />the detergent solution. If the water is recycled, the water must <br />' be changed periodically. <br />Flush with isopropyl alcohol (pesticide grade). If equipment <br />blank data from the previous sampling event show that the level of <br />' contaminants is insignificant, then this step may be skipped. <br />Flush with distilled/deionized water. The final water rinse must <br />not be recycled. <br />Procedure 2 <br />Steam clean the outside of the submersible pump. <br />' Pump hot potable water from the steam cleaner through the inside of <br />the pump. This can be accomplished by placing the pump inside a <br />three or four inch diameter PVC pipe with end cap. Hot water from <br />the steam cleaner jet will be directed inside the PVC pipe and the <br />' pump exterior will be cleaned. The hot water from the steam <br />cleaner will then be pumped from the PVC pi e through the pump and <br />collected into another container. Note: additives or solutions <br />should not be added to the steam cleaner. <br />' Pump non-phosphate detergent solution through the inside of the <br />pump. If the solution is recycled, the solution must be changed <br />periodically. <br />' Pump potable water through the inside of the pump to remove all of <br />the detergent solution. If the solution is recycled, the solution <br />must be changed periodically. <br />Pump distilled/deionized water through the pump. The final water <br />rinse must not be recycled. <br />VI.FIELD QUALITY CONTROL <br />Quality control samples are required to verify that the sample <br />collection and handling process has not compromised the quality of <br />the ground water samples. All field quality control samples must be <br />prepared the same as regular investigation samples with regard to <br />sample volume, containers, and preservation. The following quality <br />control samples shall be collected for each batch of samples (a batch <br />may not exceed 20 samples). Trip blanks are required for the VOC <br />samples at a frequency of one set per VOC sample cooler. <br />Field duplicate. <br />Matrix spike. <br />