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Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
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Published on: May 15, 2017

A storm event-based approach to TMDL development.

Tsung-Hung Hsu1, Jen-Yang Lin, Tsu-Chuan Lee

  • 1Water Environment Research Center, National Taipei University of Technology, Taipei, Taiwan, 106, Republic of China.

Environmental Monitoring and Assessment
|March 7, 2009
PubMed
Summary
This summary is machine-generated.

Defining critical conditions is vital for total maximum daily load (TMDL) development. A storm event-based critical flow-storm (CFS) approach offers a reliable alternative to continuous simulation for identifying these critical conditions in diverse watersheds.

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Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

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Published on: July 24, 2016

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Last Updated: Jun 25, 2026

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
08:49

Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff

Published on: May 15, 2017

Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

Area of Science:

  • Environmental Science
  • Hydrology
  • Water Resource Management

Background:

  • Accurate definition of critical conditions is essential for Total Maximum Daily Load (TMDL) development.
  • Continuous simulation methods for TMDL may not capture the most critical hydrologic conditions and lack risk assessment.
  • Previous limitations necessitate alternative approaches for defining critical conditions in water quality management.

Purpose of the Study:

  • To evaluate the applicability of the storm event-based critical flow-storm (CFS) approach in Taiwan.
  • To compare the CFS approach with continuous simulation for TMDL development in a different watershed.
  • To determine if the CFS approach can explicitly define critical conditions in diverse environmental settings.

Main Methods:

  • Applied the critical flow-storm (CFS) approach to the Dy-yu creek watershed in Taiwan.
  • Compared the CFS approach's performance against limitations of continuous simulation methods.
  • Analyzed watershed characteristics including climate, hydrology, and terrain for comparative assessment.

Main Results:

  • The critical condition for water bodies can vary significantly between different watersheds.
  • The CFS approach successfully defined the critical condition for the Dy-yu creek watershed.
  • Taiwan's Dy-yu creek watershed presents distinct climatic, hydrologic, and terrain features compared to previous study sites.

Conclusions:

  • The critical flow-storm (CFS) approach provides a clear method for defining critical conditions in TMDL development.
  • The CFS approach is a viable alternative to continuous simulation, especially in watersheds with unique characteristics.
  • This study supports the broader applicability of the CFS approach for TMDL development across diverse geographical regions.