Record Display for the EPA National Library Catalog


Main Title Field Applications of Chemical Time-Series Sampling.
Author Keely, J. F. ; Wolf, F. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK.
Year Published 1983
Report Number EPA/600/J-83/272;
Stock Number PB85-169795
Additional Subjects Sewers ; Industrial wastes ; Water pollution ; Water analysis ; Field tests ; Sampling ; Potable water ; Chemical analysis ; Sites ; Reprints ; Water pollution detection ; Water pollution sampling ; Tracer studies ; Ethylene/trichloro ; Ethylene/dichloro ; Ethylene/tetrachloro
Library Call Number Additional Info Location Last
NTIS  PB85-169795 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Two municipal supply wells in Lakewood, Washington, were found to be contaminated with trichloroethylene, transdichloroethylene, and tetrachloroethylene. Sequential samples were taken for chemical analyses, in conjunction with drawdown measurement during aquifer (pump) tests designed to help characterize the problem site. Plots of the chemical concentrations against duration (or volume) or pumping yielded patterns which lent insight into the orientation of the contaminant source. Analogies are drawn here between interpretation of these chemical time-series patterns and interpretations of breakthrough curves in tracer experiments. Examination of the data also infer the distinct possibility of serious interpretation errors arising from conventional sampling.