An Assessment of Storm Water Toxicity from the Dallas/Fort Worth Metroplex and Denton, Texas Page: 3
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Keating, Paul R, An assessment of storm water toxicity
from the Dallas /Fort Worth Metroplex and Denton, Texas.
Master of Science (Environmental Science) August, 1995, 176
pp., 26 tables, 12 figures, references, 45 titles.
With the advent of national storm water regulations,
municipalities with populations greater than 100,000 are
required to obtain National Pollutant Discharge Elimination
System Permits (NPDES) for storm water discharges. In
addition to the sampling required for the permit process,
the City of Fort Worth contracted with the University of
North Texas' Institute of Applied Sciences to conduct acute
toxicity testing using Pimephales prcmelas and Ceriodaphnia
dubia on storm water samples received from the Dallas/Fort
Worth Metroplex. A Toxicity Identification Evaluation (TIE)
was performed on four samples that exhibited acute toxicity
to C. dubia. High levels of metals as well as diazinon were
some of the probable toxicants found.
In addition, 42 storm water samples from Pecan Creek in
Denton, Texas were tested for acute and chronic toxicity
using C. dubia. Two TIEs were performed on acutely toxic
samples and diazinon was identified as a probable toxicant.
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Keating, Paul Redmond. An Assessment of Storm Water Toxicity from the Dallas/Fort Worth Metroplex and Denton, Texas, thesis, August 1995; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc278384/m1/3/: accessed November 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .