Data and Tools
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Meteorological Data
30 year meteorological data files taken at 237 weather stations located throughout the United States for a period extending from 1961 to 1990.
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AQUATOX Release 3.2 Fact Sheet
AQUATOX Release 3.2 was designed to extend the existing AQUATOX estuarine version to include improved capabilities for situations encountered in the nearshore marine environment. Several changes were required to model food webs in the marine environment.
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AQUATOX 3.1 Fact Sheet
AQUATOX Release 3.1 includes numerous enhancements designed to improve model performance, more closely match data requirements with generally available data, improve data manipulation and analysis, and increase user friendliness.
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Contact HMS Helpdesk
Hydrologic Micro Services (HMS) request form. HMS Helpdesk
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EPA Pacific Southwest (Region 9) RTOC Meeting Materials
Collection of historic and upcoming meeting materials from Region 9 Regional Tribal Operations Committee (RTOC) meetings.
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Unacceptable and Acceptable Substitutes Tables
Landing page for substitute tables.
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Redevelopment at Federal Facilities
Reusing Federal Facility sites makes a visible difference in communities – enabling job opportunities, strengthening local economies and providing priority services.
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Modified Total Direct Cost (MTDC) Base Tool
EPA has provided a Modified Total Direct Cost (MTDC) Base Tool which breaks down cost categories and their allowability. Topics within this tool include but are not limited to supplies, travel, fringe benefits, equipment, and construction.
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Allowance Allocation Methodology for 2022
This page describes the steps EPA took to calculate each entity receiving allowances for calendar year 2022. The list of current allowance holders is available on the Issuing Allowance Allocations web page.
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EPA Grants Overview for Applicants and Recipients
The purpose of this training seminar is to ensure that EPA's nonprofit recipient community understands the assistance agreement regulations and EPA's nonprofit recipient community understands how to manage assistance agreements.
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Phasedown of Hydrofluorocarbons (HFCs): Issuing Allowance Allocations for 2022
The American Innovation and Manufacturing (AIM) Act was enacted by Congress on December 27, 2020. The AIM Act directs the U.S. Environmental Protection Agency (EPA) to address the environmental impact of HFCs.
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Phasedown of Hydrofluorocarbons (HFCs): Issuing Allowance Allocations for 2024
The American Innovation and Manufacturing (AIM) Act was enacted by Congress on December 27, 2020. The AIM Act directs the U.S. Environmental Protection Agency (EPA) to address the environmental impact of HFCs.
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Geospatial Data Needs: EPA Seeks Input from the U.S. Pacific Territories
Guam, American Samoa, and CNMI lack the same public-facing GIS-based tools that EPA developed for much of the rest of the US. This project responds to a need for environmental and public health focused tools and datasets in these territories.
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Phasedown of Hydrofluorocarbons (HFCs): Issuing Allowance Allocations for 2025
The American Innovation and Manufacturing (AIM) Act was enacted by Congress on December 27, 2020. The AIM Act directs the U.S. Environmental Protection Agency (EPA) to address the environmental impact of HFCs.
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EPA Grants Policy Resources
EPA grant policies may impact EPA assistance agreement recipients. Refer to the EPA grant policies below for specific information that may be pertinent to your grants.
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Operating Permit Timeline for Louisiana
Part 70 Title V Operating Permit Timeline for Louisiana
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Clean Watersheds Needs Survey (CWNS) – 2022 Report and Data
The total wastewater and stormwater management needs for the nation are $298.1 billion as of January 1, 2008.
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Clean Watersheds Needs Survey (CWNS) – 2000 Report and Data
The CWNS 2000 Report to Congress summarizes the results of EPA's thirteenth national survey.
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Additional Questions for Public Trust Positions – Branching
Supplement to the Standard Form 85P, Questionnaire for Public Trust Positions.
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General Conformity Training Module 2.5: Proactive Role for Federal Agencies
Module 2.5 explains how taking a proactive role will allow a federal agency to more effectively participate in newly promulgated programs under the General Conformity Regulations, such as the emission reduction credits and the emission budgets programs.