| Main Title |
Well Construction and Purging Effects on Ground-Water Samples. |
| Author |
Barcelona, M. J. ;
Helfrich, J. A. ;
|
| CORP Author |
Illinois State Water Survey Div., Champaign.;Robert S. Kerr Environmental Research Lab., Ada, OK. |
| Year Published |
1986 |
| Report Number |
EPA-R-809966; EPA/600/J-86/373; |
| Stock Number |
PB87-203360 |
| Additional Subjects |
Wells ;
Construction materials ;
Purging ;
Ground water ;
Chemical composition ;
Water quality ;
Halohydrocarbons ;
Polyvinyl chloride ;
Reprints ;
PTFE(Polytetrafluoroethylene) ;
Steel 304
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB87-203360 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
8p |
| Abstract |
Multiple well installations of selected casing materials (i.e., polytetrafluoroethylene (PTFE), 304 stainless steel (SS), and polyvinyl chloride (PVC)) were constructed and sampled to determine if well purging and construction procedures would significantly bias chemical constituent determinations in ground water. Water quality results from six monthly sampling dates indicate that proper purging of stagnant water from monitoring wells and isolation of cement seals are essential for the collection of representative chemical data. Significant differences in purged samples taken from PTFE, SS, or PVC wells were observed for total organic carbon and volatile halocarbons, which may be linked to the materials' interaction with ground water. The well casing interferences were not predictably high or low for any of the materials. (Copyright (c) 1986 by the America Chemical Society.) |
| Supplementary Notes |
Pub. in Environmental Science and Technology, v20 n11 p1179-1184 Nov 86. Sponsored by Robert S. Kerr Environmental Research Lab., Ada, OK. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Well Construction and Purging Effects on Ground-Water Samples. |
| PUB Date Free Form |
c1986 |
| Category Codes |
50B; 99D; 68D |
| NTIS Prices |
PC A02/MF A01 |
| Primary Description |
600/15 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
724625590 |
| Origin |
NTIS |
| Type |
CAT |
