Science & Technology
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Rio Hondo TMDL
The document details the nutrients, turbidity and dissolved oxygen TMDL for Rio Hondo.
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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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Technical Support Document for the 9th Edition of eGRID with Year 2010 Data
Provides a technical description of the data elements used in the ninth edition of eGRID.
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eGRID2007 Version1.1 Year 2005 Summary Tables
Selected data from Summary Tables of eGRID2007 on emission rates of greenhouse gases and criteria pollutants for eGRID subregions, NERC regions, states, and U.S. totals.
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Working Paper: Evaluating the Effectiveness of Voluntary Programs: Did Ohio's Tox-Minus Initiative Affect Participants' TRI Emissions?
This is a working paper titled "Evaluating the Effectiveness of Voluntary Programs: Did Ohio's Tox-Minus Initiative Affect Participants' TRI Emissions?"
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NAAQS Table
NAAQS Table
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Timeline of Major Accomplishments in Transportation, Air Pollution, and Climate Change
See the major accomplishments in transportation, air pollution, and climate change.
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In-Use Testing Template for Large Nonroad Spark-Ignition (SI) Engine
Use this template to report for large nonroad spark-ignition engines.
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Large Nonroad Spark-Ignition Engines (>19 kiloWatts): Family Naming Conventions
How to create Positions 5-12 of your Engine Family name for Large Nonroad Spark-Ignition Engines (>19 kiloWatts).
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Complete Heavy-Duty Highway Vehicles (8,500 to 14,000 Pounds GVWR; Tested on Chassis Dynamometer): Family Naming Conventions
How to create Positions 5-12 of your Engine Family name for Complete Heavy-Duty Highway Vehicles (8,500 to 14,000 pounds GVWR; tested on chassis dynamometer).
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Presentation on Onroad Electric Motorcycle and Portable Fuel Container for Engines and Vehicles Compliance Information System (EV-CIS), formerly Verify, Module Deployment
This presentation provides information about electric motorcycles and portable fuel container EV-CIS module deployment.
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Heavy-Duty Evaporative Families: Family Naming Conventions
How to create Positions 5-12 of your Engine Family name for Heavy-Duty Evaporative Families.
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California-Only Medium-Duty Vehicles: Family Naming Conventions
How to create Positions 5-12 of your engine family name for California-Only Medium-Duty Vehicles.
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Frequent Questions on EPA Greenhouse Gas (GHG) Provisions for Vehicle and Engine Conversions to be Used on Clean Alternative Fuel
View frequent questions on EPA GHG provisions for conversions of vehicles and engines for clean alternative fuel.
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Webinar on Vehicle and Engine Conversions for Clean Alternative Fuel
EPA presented a webinar on the Clean Alternative Fuel Vehicle and Engine Conversions Final Rule on April 27, 2011.
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New Production Volume Reporting Module and Heavy-Duty Engine GHG Phase II Compliance Updates – Presentation
Presentation highlights the new Production Volume (PV) Reporting Module and updates to the Heavy Duty Engines ABT reporting module supporting HD GHG Phase II; reviews certification changes impacting compliance, timeline, deployment, demo, and resources.