Record Display for the EPA National Library Catalog


Main Title Toxicity Persistence in Prickly Pear Creek, Montana.
Author Baker, J. R. ; Baldigo, B. P. ;
CORP Author Lockheed Engineering and Management Services Co., Inc., Las Vegas, NV.;Environmental Monitoring Systems Lab., Las Vegas, NV.
Year Published 1984
Report Number EPA-68-03-3050; EPA/600/4-84/087;
Stock Number PB85-137149
Additional Subjects Metals ; Toxicity ; Water pollution ; Prickly Pear Creek ; Spring Creek ; Tailings ; Mining ; Minnows ; Mortality ; Stream flow ; Chemical analysis ; Concentration(Composition) ; Cadmium ; Lead(Metal) ; Zinc ; Copper ; Silver ; Arsenic ; Invertebrates ; Bioassay ;
Library Call Number Additional Info Location Last
NTIS  PB85-137149 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 84p
Instream toxicity tests using the larval fathead minnow Pimephales promelas and the cladoceran Ceriodaphnia reticulata were conducted on Prickly Pear Creek, Montana waters to study toxicity persistence in a stream. The toxicity source was Spring Creek, a tributary of Prickly Pear Creek. Gold mining tailings and settling ponds in the Spring Creek drainage release zinc, copper and cadmium to Prickly Pear Creek via Spring Creek. Stream survey characterization of flow regimes, water quality, and biotic conditions was accomplished in conjunction with toxicity testing. The study objectives were to: (1) develop a data base for validation of a toxicity persistence model; (2) assess the applicability of data from the Prickly Pear Creek study relative to model assumptions; and (3) assess field techniques for acquiring model input data. Toxicity to the test organisms was primarily due to zinc and copper in Spring Creek waters.