1,727,702 research outputs found

    Conference in the matter of pollution of the navigable waters of Galveston Bay and its tributaries, Texas.

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    478 p.This conference, on pollution of the navigable waters of Galveston Bay and its tributaries, is a continuation of the conference originally held in June of 1971. The conference covers the effects on interstate commerce caused by pollution of the shellfish beds in Galveston Bay as discussed in the previous conference. The purpose of the conference is to bring together the State water pollution control agency, representatives of the U.S. Environmental Protection Agency, and other interested parties to review the existing situation and the progress which has been made, to lay a basis for future action by all parties concerned, and to give the State, localities, and industries an opportunity to take any indicated remedial action under State and local law. The June conference recessed to permit a technical committee representing the State of Texas and the U.S. Environmental Protection Agency to get together and try to come up with a report and some recommendations.http://gbic.tamug.edu/request.ht

    Plastics Pellets in the Aquatic Environment: Sources and Recommendations - Final Report

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    118 pages; available for download at the link below.The U.S. environmental protection agency (EPA) is concerned about the amounts and types of debris in our oceans and on our beaches. This debris can have economic, esthetic, and ecological impacts and can come from both land and sea based sources. One debris item that has become of particular concern to EPA is the plastic pellet. EPA's oceans and coastal protection division (OCPD) of the office of wetlands, oceans and wetlands (OWOW) initiated the study described in this report to make a comprehensive assessment of the sources, fate, and effects of pellets in the aquatic environment, and prevent their release to the environment. The goals of the study were to 1. Summarize what is known about the presence and impacts of pellets in the aquatic environment, 2. Identify and evaluate how pellets escape into the environment, and 3. Recommended ways to control or prevent future pellet releases. This study promotes EPA's national policy on pollution prevention, which is based on the pollution prevention act of 1990 (HR 5931). EPA's policy is to (1) reduce or prevent pollution at the source whenever possible, and (2) to assist the state and local governments and the private sector in achieving source reduction. The study results, therefore, will help to implement EPA's policy by assisting the plastics industry in implementing voluntary pellet control programs to reduce the release of pellets into the aquatic environment. This report represents the first comprehensive assembly of information regarding the presence and ecological effects of pellets in the aquatic environment, and it's expected to become a basic reference for EPA and industry.http://gbic.tamug.edu/request.ht

    Ramapo Aquifer Systems: Support Document

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    This document provides supporting information for a petition to the U.S. Environmental Protection Agency (USEPA) to designate the Ramapo River Basin as a Sole Source Aquifer (SSA). Under the Safe Drinking Water Act (SDWA), Federal financial assistance is not available for any project that might contaminate an aquifer, where that aquifer is the principal drinking water source for the area. However assistance may be available to ensure the prevention of contamination. As part of a petition for SSA status, this document details the topography, climate and hydrogeology of the Ramapo River Basin, and explains that the area is both susceptible to contamination and suffers a lack of alternative drinking water sources.Purpose: To provide supporting information for a petition to the USEPA to designate the Ramapo River Basin as a Sole Source Aquifer

    Guidance Specifying Management Measures for Sources of Nonpoint Pollution in Coastal Waters

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    793 pages; available for download at the link below.This document contains guidance specifying management measures for sources of nonpoint pollution in coastal waters. Nonpoint pollution is the pollution of our nation's waters caused by rainfall or snowmelt moving over and through the ground. As the runoff moves, it picks up and carries away natural pollutants and pollutants resulting from human activity, finally depositing them into lakes, rivers, wetlands, coastal waters, and ground waters. In addition, hydrologic modification is a form of nonpoint source pollution that often adversely affects the biological and physical integrity of surface waters. In the Coastal Zone Act Reauthorization Amendments of 1990 (CZARA), Congress recognized that nonpoint pollution is a key factor in the continuing degradation of many coastal waters and established a new program to address this pollution. Congress further recognized that the solution to nonpoint pollution lies in State and local action. Thus, in enacting the CZARA, Congress called upon States to develop and implement State Coastal Nonpoint Pollution Control Programs. Congress assigned to the U.S. Environmental Protection Agency (EPA) the responsibility to develop this technical guidance to guide the States' development of Coastal Nonpoint Pollution Control Programs, which much be in conformity with the technical guidance. EPA developed this guidance by carefully surveying the technical literature, working with Federal and State agencies, and engaging in extensive dialogue with the public to identify the best economically achievable measures that are available to protect coastal waters from nonpoint pollution. This "management measures" guidance addresses five source categories of nonpoint pollution: agriculture, silviculture, urban, marinas, and hydromodification. A suite of management measures is provided for each source category. In addition, we have included a chapter that provides management measures that provide other tools available to address many source categories of nonpoint pollution; these tools include the protection, restoration, and construction of wetlands, riparian areas, and vegetated treatment systems. In addition to this "management measures" guidance, EPA and the National Oceanic and Atmospheric Administration (NOAA) have jointly published final guidance for the approval of State programs that implement management measures. That guidance explains more fully how the management measures guidance will be implemented in State programs.http://gbic.tamug.edu/request.ht

    Turning the Tide on Trash. A Learning Guide on Marine Debris

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    78 pgs.Turning the Tide on Trash: A Learning Guide on Marine Debris is an interdisciplinary guide designed to provide maximum flexibility in the classroom. The guide can be used as a stand alone teaching tool, or individual activities may be used to supplement work in other subject areas. The learning guide opens with an exercise, "Let's Talk Trash: a Litter Survey," that encourages students to think about their own behaviors and attitudes with respect to litter. This survey provides a basis for students to understand their contribution to the marine debris problem and will help teachers draw students into activities presented later in the guide that deal with the sources and effects of marine debris.http://gbic.tamug.edu/request.ht

    Integrated risk information system supportive documentation, volumes I and II.

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    n.p.No abstract availablehttp://gbic.tamug.edu/request.ht

    Multi-Sector General Permit

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    In compliance with the provisions of the Clean Water Act (CWA), as amended (33 U.S.C. 1251 et seq.), operators of stormwater discharges associated with industrial activity located in an area identified in Appendix C where EPA is the permitting authority are authorized to discharge to waters of the United States in accordance with the eligibility and Notice of Intent (NOI) requirements, effluent limitations, inspection requirements, and other conditions set forth in this permit

    Storm Water Management Model - SWMM

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    Educação Superior::Engenharias::Engenharia SanitáriaRainfall-derived infiltration and inflow (RDII) into sanitary sewer systems has long been recognized as a source of operating problems in sewerage systems. RDII is the main cause of sanitary sewer overflows (SSOs) to basements, streets, or nearby receiving waters and can also cause serious operating problems at wastewater treatment facilities. Thus, there is a need to develop proven methodologies and computer tools to assist SSO communities in developing an optimal capital improvement program that is in line with the projected annual capital budget and provides flexibility for future improvements. To assist municipalities in developing plans to mitigate SSO problems, was developed a public-domain Sanitary Sewer Overflow Analysis and Planning (SSOAP) toolbox. The SSOAP toolbox is a suite of computer software tools used for quantification of RDII and facilitating capacity analysis of sanitary sewer systems. The toolbox is currently interfaced with the USEPA Storm Water Management Model Version 5 (SWMM5) for performing dynamic routing of flows through the sanitary sewer systemsMust understand the concepts of sanitation syste

    Storm Water Management Model - SWMM

    No full text
    Educação Superior::Engenharias::Engenharia SanitáriaRainfall-derived infiltration and inflow (RDII) into sanitary sewer systems has long been recognized as a source of operating problems in sewerage systems. RDII is the main cause of sanitary sewer overflows (SSOs) to basements, streets, or nearby receiving waters and can also cause serious operating problems at wastewater treatment facilities. Thus, there is a need to develop proven methodologies and computer tools to assist SSO communities in developing an optimal capital improvement program that is in line with the projected annual capital budget and provides flexibility for future improvements. To assist municipalities in developing plans to mitigate SSO problems, was developed a public-domain Sanitary Sewer Overflow Analysis and Planning (SSOAP) toolbox. The SSOAP toolbox is a suite of computer software tools used for quantification of RDII and facilitating capacity analysis of sanitary sewer systems. The toolbox is currently interfaced with the USEPA Storm Water Management Model Version 5 (SWMM5) for performing dynamic routing of flows through the sanitary sewer systemsMust understand the concepts of sanitation syste
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