Laws & Regulations
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Category 4b - National Status and Trends
The paper provides an overview of the 4b alternative to TMDLs and provides general statistics on types and numbers of 4b projects to date.
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Watershed Academy Webcast - ELI/TNC Watershed Approach Handbook: Improving Outcomes and Increasing Benefits Associated with Wetland and Stream Restoration and Protection Projects
Flyer, presentation, and additional resources for the March 18, 2015 webcast, "ELI/TNC Watershed Approach Handbook: Improving Outcomes and Increasing Benefits Associated with Wetland and Stream Restoration and Protection Projects"
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Implementing Total Maximum Daily Loads: Understanding and Fostering Successful Results
The study addresses the extent to which TMDLs are being implemented, factors that facilitate implementation progress and steps that can be taken to facilitate further progress on TMDL implementation.
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Wissahickon Creek TMDL Models
Model files used during development of the proposed Wissahickon Creek TMDL
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Applying Results Findings: The Recovery Potential Project
The document describes a pilot study using the Illinois 303(d) listed waters, aimed at developing tools and data to help state TMDL and restoration programs decide where best to use their limited restoration resources.
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Animas River Watershed TMDL
The document details the bacteria, nutrients and temperature TMDL for the Animas River Watershed.
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Crow Wing River Watershed TMDL
The document details the bacteria, nutrients and temperature TMDL for the Crow Wing River Watershed.
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Stormwater TMDL Implementation Support Manual
The objective of this document is to provide support to stakeholders, who will be implementing the TMDLs, in identifying and taking actions to reduce, and ultimately fix, stormwater impairments in water bodies.
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FY2010 National Report on Implementing TMDLs
The national study analyzed the frequency of TMDL implementation through NPDES permits and Section 319 projects and discusses how data gaps influence assessment results.
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FY2010 Assessment of Improving and Recovered Waters with TMDLs
The national study analyzed the numbers of impaired waters with TMDLs that are fully attaining water quality standards or have individual causes restored.
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Identifying and Listing Impaired Waters under the Clean Water Act
A collection of requirements for the 303(d) Program and Integrated Reporting.
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The TMDL Program Results Analysis Project: Matching Results Measures with Program Expectations
The paper provides a detailed description of the aims, methods and outputs of the program evaluation project undertaken by EPA in order to generate the insights needed to make TMDL program improvements.
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Other Files Provided During Proposed Wissahickon Creek TMDL Public Comment Period
Other files provided during the public comment period for the proposed Wissahickon Creek watershed phosphorus TMDL.
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Pilot TMDL Applications Using the Impervious Cover Method
This report provides a description of the Impervious Cover (IC) method and tests its feasibility as a total maximum daily load (TMDL) development tool using watersheds nominated by five New England States.
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Category 4b - A Regulatory Alternative to TMDLs
The paper describes the extent to which states have successfully employed TMDL alternatives to address impaired waters and assigned these waters to Category 4b, and includes several Washington State examples.
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TMDL to Address Biological Impairment in Potash Brook, Vermont
The document details a TMDL designed to address biological impairment in Potash Brook, Vermont.
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Sampling TMDL Implementation Rates and Patterns in the North Central United States
The paper describes the results of a statistical sampling study that estimated TMDL implementation rates and other characteristics throughout the north-central United States.
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Beaver Lake, Iowa TMDL
The document details the algae and pH TMDL and water quality improvement plan for Beaver Lake, Iowa.
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TMDL Implementation: Lessons Learned
Virginia Tech Center for TMDL and Watershed Studies provided state TMDL implementation information and reviewed ongoing TMDL implementation efforts across the country to identify factors that contribute to successful implementation.
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Lake Kahola, Kansas TMDL
The document details the eutrophication TMDL for Lake Kahola, Kansas.