Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Monitoring Well Installation, Purging, and Sampling Techniques. Part 2. Case Histories.
Author Keely, J. F. ; Boateng, K. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;Weston (Roy F.), Inc., West Chester, PA.
Year Published 1987
Report Number EPA/600/J-87/203;
Stock Number PB88-170519
Additional Subjects Wells ; Monitoring ; Ground water ; Installing ; Sampling ; Purging ; Contamination ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB88-170519 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 16p
Three case histories are presented to illustrate the problems encountered using some monitoring well installation, purging, and sampling techniques. Hollow-stem augering was found to pose problems during the installation of monitoring wells in terms of potential for cross-contamination of strata, the inability to emplace an adequate filter pack, the potential for smearing natural clays into sand and gravel strata, and the possible need for excessive purging of sediments that accumulate between sampling events. A hybrid drilling technique, augering with temporary casing, was able to provide the advantages, and minimize the disadvantages, of the foregoing drilling methods.