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Advance Identification (ADID) of Disposal Areas under CWA Section 404

Advance identification of disposal areas (ADID), a planning process used to identify wetlands and other waters that are generally suitable or unsuitable for the discharge of dredged and fill material.

Public Notices for Current Enforcement Actions under CWA Section 404 - Notices Listed by EPA Region

List of Public Notices

CWA Restoration Framework

Overview of Clean Water Act (CWA) restoration framework including; water quality standards, monitoring/assessment, reporting water quality status, TMDL development, TMDL implementation (point & nonpoint source control)

Service Areas for Third Party Compensatory Mitigation under CWA Section 404

Watershed, ecoregion, physiographic province, and/or other geographic area within which the mitiigation bank or in-lieu fee program is authoriized to provide compensatory mitigation

Financial Assurances for Mitigation under CWA Section 404

DE shall require sufficient financial assurances to ensure a high level of confidence that the mitigation project will be successfully completed, in accordance with applicable performance standards.

Site Protection Mechanisms for Mitigation under CWA Section 404

Mitigation projects must be provided long-term protection through real estate instruments or other available mechanisms, as appropriate.

Long-term Management of Mitigation Projects under CWA Section 404

Mitigation should be self-sustaining but active management may be needed to meet objectives. Long-term Management is needed to ensure sustainable mitigation after performance standards are met.

Chemical Mass Balance (CMB) Model

The EPA-CMB Version 8.2 uses source profiles and speciated ambient data to quantify source contributions. Contributions are quantified from chemically distinct source-types rather than from individual emitters.

Corps/EPA Compensatory Mitigation Rule 3rd Party Mitigation – Requirements

Corps/EPA Compensatory Mitigation Rule 3rd Party Mitigation: Requirements

Corp/EPA Compensatory Mitigation Rule: Agency Roles and Responsibilities

Determining appropriate amount and type of compensatory mitigation. Facilitate establishment of Mitigation Banks or In-Lieu Fee programs through the development of instruments.

Remining - Opportunities and Limitations for Water Quality Improvement and Stream Restoration

Benefits of Remining are discussed including; reclamation of abandoned mine lands that the AML program is unlikely to ever restore, decrease or eliminate pollution loads of acidity,iron, manganese and other contaminants from pre-existing discharges.

Corps/EPA Compensatory Mitigation Rule 3rd Party Mitigation - Instrument Development

Written determination of potential suitability of proposed Mitigation Bank or In-Lieu Fee program to provide compensatory mitigation for CWA 404 permits

Headwater Streams - What Are They and What Do They Do?

General Stream Principles including headwater streams, Lane's Relation, stream beahvior

What Kind of Water Features are Regulated by the Clean Water Act (also known as Waters of the U.S.)

Section 404 permits are required when waters regulated under the Clean Water Act, also called "Waters of the U.S.," will be dredged or filled

Memorandum: Clean Water Act Section 404 Regulatory Program and Agricultural Activities

Memorandum from 1990 concerning the applicability of the Clean Water Act Section 404 regulatory program to agriculture.

Presidential Memorandum Mitigating Impacts on Natural Resources From Development and Encouraging Related Private Investment (2015)

Presidential Memorandum encouraging agencies to share and adopt a common set of their best practices to mitigate for harmful impacts to natural resources.