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The Sensitivity of Four Monitoring Well Sampling Systems to Low Concentrations of Three Volatile Organics
Author(s) -
Schalla Ronald,
Myers David A.,
Simmons Mary Ann,
Thomas John M.,
Toste Antony P.
Publication year - 1988
Publication title -
groundwater monitoring and remediation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 47
eISSN - 1745-6592
pISSN - 1069-3629
DOI - 10.1111/j.1745-6592.1988.tb01090.x
Subject(s) - sampling (signal processing) , environmental science , trichloroethylene , hazardous waste , aquifer , contamination , tetrachloroethylene , waste management , environmental chemistry , groundwater , environmental engineering , chemistry , engineering , geotechnical engineering , ecology , filter (signal processing) , electrical engineering , biology
Four state‐of‐the‐art ground water sampling systems were analyzed to determine their reliability in providing representative samples of the volatile chlorinated hydrocarbons trichloroethylene (TCE), perchloroethylene (PCE), and 1,1,1‐trichloroethane (TCA) from a simulated monitoring well. The sampling systems studied represent four commonly used devices, including a stainless steel and Teflon® piston pump, a Teflon bailer, a Teflon bladder pump, and a PVC air‐lift pump. Controlled laboratory sampling experiments were conducted in a tank and well test chamber designed to approximate field conditions. A well purging and sampling procedure was used in the test apparatus to determine the accuracy and precision of each device for detecting low concentrations of the compounds in ground water. The compounds selected are some of the most ubiquitous hazardous contaminants found in shallow aquifers near hazardous waste sites throughout the United States. No significant statistical difference was found among the four sampling systems in detecting the compounds.