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Combined Sewer Overflows Guidance for Screening and Ranking

By Environmental Protection Agency

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Book Id: WPLBN0000048174
Format Type: PDF eBook
File Size: 0.2 MB
Reproduction Date: 2007

Title: Combined Sewer Overflows Guidance for Screening and Ranking  
Author: Environmental Protection Agency
Volume:
Language: English
Subject: Ecology, Natural resource issues, Environemtal protection
Collections: Environmental Awareness Library Collection
Historic
Publication Date:
Publisher: United States Environmental Protection Agency

Citation

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Agency, E. P. (n.d.). Combined Sewer Overflows Guidance for Screening and Ranking. Retrieved from http://www.nationalpubliclibrary.com/


Description
Excerpt: 1.1 Background Combined sewer systems (CSSs) are wastewater collection systems designed to carry sanitary sewage (consisting of domestic, commercial, and industrial wastewater) and storm water (surface drainage from rainfall or snowmelt) in a single pipe to a treatment facility. CSSs serve about 43 million people in approximately 1,100 communities nationwide. Most of these communities are located in the Northeast and Great Lakes regions. During dry weather, CSSs convey domestic, commercial, and industrial wastewater. In periods of rainfall or snowmelt, total wastewater flows can exceed the capacity of the CSS and/or treatment facilities. When this occurs, the CSS is designed to overflow directly to surface water bodies, such as lakes, rivers, estuaries, or coastal waters. These overflows-called combined sewer overflows (CSOs)-can be a major source of water pollution in communities served by CSSs.

Table of Contents
TABLE OF CONTENTS Page 1 Introduction .......................................... 1-1 1.1 Background ...................................... 1-1 1.2 History of the CSO Control Policy ........................ 1-1 1.3 Key Elements of the CSO Control Policy .................... 1-3 1.4 Guidance to Support Implementation of the CSO Control Policy ...... 1-4 1.5 Purpose of Manual and Target Audience ..................... 1-6 1.6 Watershed Approach to Permitting ........................ 1-8 2 The Screening Process .................................... 2-1 2.1 Criterion 1 ....................................... 2-1 2.2 Criterion 2 ....................................... 2-2 3 The Ranking Process ..................................... 3-1 3.1 Criterion 1 ....................................... 3-2 3.2 Criterion 2 ....................................... 3-3 3.3 Criterion 3 ....................................... 3-4 3.4 Criterion 4 ....................................... 3-6 3.5 Criterion 5 ....................................... 3-7 3.6 Criterion 6. ..................................... 3-8 3.7 Criterion 7 ........................................ 3-9 APPENDIX A TESTING OF THE GUIDANCE FOR SCREENING AND RANKING COMBINED SEWER SYSTEMS . . . . . . . . . A-1 REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . R-1 LIST OF EXHIBIT AND TABLES Exhibit 1-1 Roles and Responsibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Table A-1. Sources From Which Needed Information Was Acquired for Screening and Ranking Process Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2 Table A-2. Summary of Results Obtained in Applying the Screening and Ranking Process to 13 CSSs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4

 

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