Data and Tools
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Templates for Developing Wetland Water Quality Standards
These templates are a tool to simplify development of protective wetland water quality standards.
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Use Attainability Analysis and the Use Revision Process
This interactive diagram can help states and authorized tribes establish or revise designated uses by addressing the steps and questions they should consider while conducting a Use Attainability Analysis (UAA).
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Revised Total Coliform Rule Level 1 Assessment Form
This form should be completed when a water system is notified that a Level 1 Assessment has been triggered as required under the Revised Total Coliform Rule (RTCR).
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Revised Total Coliform Rule Level 2 Assessment Sanitary Defect Correction Extension Request
Revised Total Coliform Rule Level 2 Assessment Sanitary Defect Correction Extension Request - This form should be used when requesting an extension on corrective actions after a Level 2 Assessment was triggered.
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Live Water Quality Data - Individual Parameter for the Lower Charles River
View charts of or download water quality data measured by the Charles River buoy, including temperature, dissolved oxygen percentage, and chlorophyll.
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City of Callaway WWTF - NPDES Permit
Public notice Permit No.: MN0022985 (Reissuance),
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East Lake Sewage Lagoon – Mille Lacs Indian Reservation (Aitkin County, MN) - NPDES Permit
EPA proposes to reissue a NPDES permit for the treated wastewater discharges from the East Lake Sewage Lagoon located within the boundaries of the Mille Lacs Indian Reservation located in East Lake (McGregor), Minnesota (Aitkin County) to be issued by EPA.
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General Conformity Training Module II: Key Concepts
Module II provides how these regulations are applicable to federal actions, the conformity requirements and the review process.
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General Conformity Training Module 3.5: Demonstrating Conformity
Module 3.5 describes how a federal demonstrates conformity.
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General Conformity Training Module III: Details
Module III provides detailed information on evaluating conformity.
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General Conformity Training Module 4.1: State, Tribal, and Local Involvement
Module 4.1 explains houw State, tribal and local air quality agencies have a number of responsibilities under the General Conformity Regulations and what they are.
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De Minimis Tables
De minimis Tables
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How to Register to Apply for Grants
Provides instructions for registering an organization with SAM.gov and Grants.gov as a precondition for applying for EPA grant opportunities.
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The Alternatives for Disposition of Electronics Planning Tool (ADEPT)
ADEPT tool landing page
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Post-processing IsoSource Results
Discussion and a detailed example of post-processing results from the IsoSource stable isotope mixing model.
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Stable Isotope Mixing Models for Estimating Source Proportions
Stable isotope analysis can be used in ecological studies to trace chemical movement through the environment. This page provides three analysis tools for download: IsoError, IsoConc, and IsoSource.
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Radiological Fate & Transport
EPA is assessing how Cesium moves within the environment following an intentional or accidental release. EPA is conducting experimental and modeling studies and incorporating field data from the Fukushima and Chernobyl nuclear power plant accidents.
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Stormwater Management
EPA's stormwater management research, which provides information and tools to prepare communities for natural and man-made contamination events, including from chemical, biological, and radiological incidents.
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Resources for When EPA Acts as the Certifying Authority under Section 401
The EPA has developed three templates (pre-filing meeting requests, requests for certification, and certification decisions) to share its practices when the EPA is the certifying authority.
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U.S. Army Corps of Engineers: Evaluation of the San Jacinto Waste Pits Feasibility Study Remediation Alternatives (August 2016)
U.S. Army Corps of Engineers: Evaluation of the San Jacinto Waste Pits Feasibility Study Remediation Alternatives (August 2016)