Record Display for the EPA National Library Catalog


Main Title Ammonia investigations in the Colorado River, Grand Junction and Fruita, Colorado /
Author Hsiao, Joyce S.
Other Authors
Author Title of a Work
Sheik-ol-Eslami, Bahman.
Botham, Leslie H.
CORP Author Engineering-Science, Inc., Denver, CO.;Environmental Protection Agency, Denver, CO. Region VIII.
Publisher Engineering-Science,
Year Published 1979
Report Number EPA 908/5-79-004; 2957; EPA-68-01-4611
Stock Number PB80-130180
OCLC Number 15114625
Subjects Ammonia ; Colorado River (Colo-Mexico) ; Water--Pollution--Colorado--Measurement ; Environmental monitoring--Colorado ; Water--Pollution--Measurement ; North America--Colorado River
Additional Subjects Ammonia ; Water pollution ; Colorado River ; Monitoring ; pH ; Temperature ; Stream flow ; Nitrogen ; Concentration(Composition) ; Tables(Data) ; Periodic variations ; Allocations ; Sewage disposal ; Colorado ; Water quality data ; Organic loading ; Low flow
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJED  EPA 908-5-79-004 OCSPP Chemical Library/Washington,DC 05/28/2019
ELBD ARCHIVE EPA 908-5-79-004 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD ARCHIVE EPA 908-5-79-004 AWBERC Library/Cincinnati,OH 07/22/2021
NTIS  PB80-130180 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 215 pages : graphs, tables, maps ; 28 cm
Near the western border of Colorado, the Colorado River is the habitat of four threatened and endangered fish species as well as the receiving water course for sewage effluent from the cities of Grand Junction and Fruita. An extensive monitoring program was conducted to sample four water quality parameters which affect the concentration of un-ionized ammonia, a substance toxic to fishes at high concentrations. Temperature, pH, total ammonia and flow were measured for thirteen months along a 20 km reach of the river. Collected data and historical data were compared and analyzed to establish representative background conditions on a monthly basis. These conditions were then used to determine the monthly total ammonia loading allocations for the proposed wastewater treatment facilities at each of the two cities that would maintain a safe level of un-ionized ammonia in the river.
"EPA 908-5-79-004." "December 1979." Cover title. PB 80-130180 Final report. Sponsored by the U.S. Environmental Protection Agency. Contract Number: 68-01-4611, D.O.W. 3.