Main Title |
Use of probabilistic information in the water quality based approach / |
Author |
Jaworski, Norbert A.
|
Other Authors |
|
CORP Author |
Environmental Research Lab.-Duluth, MN. |
Publisher |
[U.S. Environmental Protection Agency, Environmental Research Laboratory], |
Year Published |
1984 |
Report Number |
PB84-220326; EPA 600-D-84-192 |
Stock Number |
PB84-220326 |
OCLC Number |
50076695 |
Subjects |
Urban runoff--Mathematical models ;
Water quality management--Mathematical models
|
Additional Subjects |
Water quality management ;
Aquatic animals ;
Protection ;
Safety ;
Sewage treatment ;
Cost analysis ;
Standards ;
Licenses ;
Waste disposal ;
Statistical analysis ;
Allocations ;
Operations ;
Maintenances ;
Stream flow ;
Toxicity ;
Water quality criteria ;
Discharge(Water) ;
Low flow
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
ELBD ARCHIVE |
EPA 600-D-84-192 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ESAD |
EPA 600-D-84-192 |
|
Region 10 Library/Seattle,WA |
06/28/2002 |
NTIS |
PB84-220326 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
20 pages : illustrations ; 28 cm |
Abstract |
During the past two decades, implementation procedures in wastewater management often resulted in a large margin of safety being incorporated into the use of water quality criteria for the protection of aquatic life and its uses. Wasteload allocation design conditions, such as the use of seven-day, ten-year low flow, gave assurances of instream concentrations well below the water quality criteria for a large percentage of time. Present-day economic conditions and the increasing cost of advanced wastewater treatment are necessitating a re-examination of how water quality criteria are being used in the water quality based approach for establishing effluent limitations. The relationships between water quality criteria and other components of the water quality based approach are identified. The need for a better defined and more consistent use of statistical information is suggested not only in the development of water quality criteria but also for the entire water quality based approach. Intensity, duration, and frequency of occurrence (return period) appear to be three common statistical parameters of the six-step water quality based approach. |
Notes |
"EPA 600-D-84-192." "1984." |