Main Title |
Meadowland Natural Treatment Processes in the Lake Tahoe Basin: A Field Investigation. |
Author |
Morris, F. A. ;
Morris, M. K. ;
Michaud, T. S. ;
Williams, L. R. ;
|
CORP Author |
Nevada Univ., Las Vegas. Dept. of Biological Sciences.;Environmental Monitoring Systems Lab., Las Vegas, NV. |
Year Published |
1981 |
Report Number |
EPA-68-03-2619; EPA-600/4-81-026; |
Stock Number |
PB81-185639 |
Additional Subjects |
Surface water runoff ;
Water pollution control ;
Lake Tahoe Basin ;
Nutrients ;
Concentration(Composition) ;
Phosphorus ;
Nitrogen ;
Carbon ;
Turbidity ;
Removal ;
Suspended sediments ;
Nevada ;
California ;
Wetlands ;
Meadowlands
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB81-185639 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
191p |
Abstract |
The report investigates the effectiveness of using natural meadowlands and wetlands to trap nutrients and sediments on land from surface and storm water runoff before they reach Lake Tahoe. Seven systems consisting of four streams and three drainage areas were studied. The study systems can be divided into those which remained channelized and those which spread as sheet flow across meadowlands. In the channelized systems, phosphorus, nitrogen, suspended sediments, and organic carbon concentrations usually remained unchanged or increased from the inlet to the outlet of the meadow. The sheet flow systems exhibited reductions up to 93% of total P, 71% of NH3(-)N, 96% of NO2(-)NO3(-)N, 82% of Kjeldahl-N, 94% of turbidity, 75% of TOC, 91% of POC, 91% of total residue, and 97% of non-filtrable residue. The effectiveness of nutrient removal in the functional systems approached that of conventional tertiary treatment. |
NTIS Title Notes |
Final rept.. |
PUB Date Free Form |
Apr 81 |
Category Codes |
8H; 68D#; 48G# |
NTIS Prices |
PC A09/MF A01 |
Primary Description |
600/07 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323796237 |
Origin |
NTIS |
Type |
CAT |