Laws & Regulations
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PRN 96-1: Tolerance Enforcement Methods - Independent Laboratory Validation by Petitioner
This notice is intended to clarify the requirements for submission of an Independent Laboratory Validation to accompany new pesticide analytical methods and does not contain additional data requirements.This notice supersedes PR Notice 88-5.
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Evaluation of Sediment Transport Data for Clean Sediment TMDLs
The report evaluates sediment transport data for clean sediment TMDLs.
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Innovative TMDLs using Impervious Cover
Three states in EPA Region 1 have developed TMDLs using impervious cover and flow as surrogates for stormwater-source pollutants in streams listed for biological impairment.
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Upper Pine Lake, Iowa TMDL
Algae TMDL and water quality improvement plan for Upper Pine Lake, Iowa.
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Rio Hondo TMDL
The document details the nutrients, turbidity and dissolved oxygen TMDL for Rio Hondo.
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Proposed Wissahickon Creek Phosphorus TMDL
Documents and files for the Proposed Wissahickon Creek Phosphorus TMDL, Southeast Pennsylvania.
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National Association of Counties "Stormwater Runoff for Counties" Webinar
Presentations and a transcript of a "Stormwater Runoff for Counties" webinar.
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Total Maximum Daily Loads with Stormwater Sources: A Summary of 17 TMDLs
A summary of 17 TMDLs that have been developed for stormwater-source pollutants in 16 states, representing a range of pollutants, models used, and different allocation and implementation methods.
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Lake Thunderbird TMDL
The document details the nutrients, turbidity and dissolved oxygen TMDL for Lake Thunderbird.
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TMDL Model Evaluation and Research Needs (2005)
The document provides a comprehensive review of available models for developing TMDLs.
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South Branch Potomac River and Shenandoah River Watersheds TMDL
The document details the bacteria, dissolved oxygen and metals TMDL for the South Branch Potomac River and Shenandoah River Watersheds.
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Total Maximum Daily Loads and National Pollutant Discharge Elimination System Storm Water Permits for Impaired Water Bodies: A Summary of State Practices
A summary on TMDL-stormwater practices in 10 states that provides specific TMDL and permit language and identifies some specific technical and programmatic challenges.
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Fact Sheet: Minnesota Statewide Mercury TMDL
The factsheet documents the Minnesota Statewide Mercury TMDL.
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Middle Rio Grande Watershed TMDL
The document details the bacteria and aluminum TMDL for the Middle Rio Grande Watershed.
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TMDL-Stormwater Permit Case Studies
These case studies from 2004 and 2005 describe activities linking stormwater-source TMDLs currently being developed with applicable stormwater permits.
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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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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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Crow Wing River Watershed TMDL
The document details the bacteria, nutrients and temperature TMDL for the Crow Wing River Watershed.
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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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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.