Record Display for the EPA National Library Catalog

RECORD NUMBER: 497 OF 680

OLS Field Name OLS Field Data
Main Title Physical, Chemical, and Microbiological Factors Affecting the Discharge of Water into Drain Tile.
Author Richard, Sterling J. ;
CORP Author California Univ., Davis. Water Resources Center.
Year Published 1972
Report Number UCAL-WRC-W-217; OWRR-A-029-CAL; 07353,; A-029-CAL(2)
Stock Number PB-208 607
Additional Subjects ( Tile drains ; Plugging) ; ( Irrigation ; Tile drains) ; Iron oxides ; Manganese oxides ; Bacteria ; Soil chemistry ; Laboratory equipment ; California ;
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-208 607 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 33p
Abstract
In the Imperial and Coachella Valleys in Southern California, installation of tile drainage has been necessary following expanded irrigation activity and use of Colorado River water. However, the flow of water into and through tile drainage lines is often restricted by the gradual accumulation of iron and manganese deposits. The purpose of the study was to construct and test laboratory models simulating drainage through a tile joint in order to gain better understanding of the processes involved in the plugging of tile joints with iron and manganese deposits. Microscopic examinations of the deposits revealed large numbers of bacteria. Tests show that biological oxidation could be dominant over a chemical process in the plugging process.