Laserfiche WebLink
i <br /> G R O U N D W A T E R S A M P L I N G P R O T O C O L <br /> Sampling of groundwater is performed by Compliance & Closure, Inc. sampling <br /> technicians Summarized field sampling procedures are as follows : <br /> 1 Proceed to first well with clean and decontaminated equipment <br /> 2 . Measurements of liquid surface (s) in the well, and total depth of <br /> monitoring well Note presence of silt accumulation. <br /> 3 Field check for presence of floating product; measure apparent <br /> thickness . <br /> i <br /> 4 Purge well prior to collecting samples; purge volume (casing <br /> volumes) calculated prior to removal . <br /> S . Monitor groundwater for temperature, pH, and specific conductance <br /> during purging. Allow well to recover. <br /> 6 . Collect samples using Environmental Protection Agency (EPA) <br /> approved sample collection devices, i e , teflon or stainless <br /> steel bailers or pumps <br /> 7 Transfer samples into laboratory-supplied EPA-approved containers <br /> 8 . Label samples and log onto chain-of-custody form. <br /> 9 . Store samples in a chilled ice chest for shipment to a state- <br /> certified analytical laboratory. <br /> 10 . Decontaminate equipment prior to sampling next well . <br />