Main Title |
Bacterial Movement through Fractured Bedrock. |
Author |
Morriso, S. M. ;
Alle, Martin J. ;
|
CORP Author |
Colorado State Univ., Fort Collins. Environmental Resources Center. |
Year Published |
1972 |
Report Number |
Completion-32; DI-14-01-0001-1882; OWRR-B-023-COLO; 00943,; B-023-COLO(1) |
Stock Number |
PB-212 713 |
Additional Subjects |
( Ground water ;
Water pollution) ;
( Water pollution ;
Bacteria) ;
( Bacteria ;
Percolation) ;
( Sewage disposal ;
Hydrogeology) ;
( Septic tanks ;
Water pollution) ;
Subsurface drainage ;
Mountains ;
Water wells ;
Public health ;
Hydrology ;
Bacillus ;
Coliform bacteria ;
Water quality ;
Geological joints ;
Bedrock
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-212 713 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
117p |
Abstract |
Movement of bacteria-laden waters percolating through fractured bedrock was examined to determine whether effluent originating from conventional waste disposal systems could contaminate shallow ground water supplies. Inoculated waters were injected into holes and/or wells at two geologically different test sites to evaluate the extent of microbial filtration of leachfield effluent in or along bedrock fractures. Injection waters, inoculation with Bacillus stearothermophilis, were found to be readily transported by the ground water gradient into a downslope well. Continued bacteriological analysis showed the tracer bacterium to be present for at least 6 days after inoculation. At mountain building sites, it is essential that either hydrogeologic data, such as bedrock fracture patterns, depth and movement of ground waters, seasonal fluctuations in ground water levels, be fully ascertained prior to installation of waste disposal systems. |
PUB Date Free Form |
Jul 72, |
Category Codes |
8H; 13B; 68D; 64H |
NTIS Prices |
PC A06/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326533390 |
Origin |
NTIS |
Type |
CAT |