United States Environmental Protection Agency Region 8 Series

By Cook, Michael B.

Book Id: WPLBN0000070402
Format Type: PDF eBook
File Size: 0.1 MB
Reproduction Date: 2007

Title:	United States Environmental Protection Agency Region 8 Series
Author:	Cook, Michael B.
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 APA MLA Chicago Cook, M. B. (n.d.). United States Environmental Protection Agency Region 8 Series. Retrieved from http://gutenberg.cc/

Description
Excerpt: I am pleased to provide you with the Environmental Protection Agency’s (EPA) guidance document on the monitoring and modeling of combined sewer overflows (CSO) and their impacts on receiving waters. This is the seventh in a series of guidance manuals that EPA prepared to support implementation of the 1994 Combined Sewer Overflow Control Policy. This manual presents a set of guidelines that provide flexibility for a municipality to develop a site-specific strategy for characterizing its combined sewer system operations and impacts and for developing and implementing a long-term CSO control plan. It is not a “howto” manual defining how many samples to collect or which flow metering technologies to use.

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.5 PURPOSE OF GUIDANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 1.6 MANUAL ORGANIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 2. INTRODUCTION TO MONITORING AND MODELING . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1 MONITORING AND MODELING FOR NINE MINIMUM CONTROLS AND LONG-TERM CONTROL PLAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1.1 Nine Minimum Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.1.2 Long-Term Control Plan Development . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2.1.3 Monitoring and Modeling During Phase I . . . . . . . . . . . . . . . . . . . . . . . . 2-9 2.1.4 Monitoring and Modeling During Phase II . . . . . . . . . . . . . . . . . . . . . . 2-10 2.2 MONITORING AND MODELING AND THE WATERSHED APPROACH . 2-11 2.3 MEASURES OF SUCCESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14 2.4 COORDINATION WITH OTHER WET WEATHER MONITORING AND MODELING PROGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 2.5 REVIEW AND REVISION OF WATER QUALITY STANDARDS . . . . . . . . 2-16 2.6 OTHER ENTITIES INVOLVED IN DEVELOPING AND IMPLEMENTING THE MONITORING AND MODELING PROGRAM . . . . . . . . . . . . . . . . . . . . 2-18 3. INITIAL SYSTEM CHARACTERIZATION - EXISTING DATA ANALYSIS AND FIELD INVESTIGATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.1 PHYSICAL CHARACTERIZATION OF CSS . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.1.1 Review Historical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 3.1.2 Study Area Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 3.1.3 System Field Investigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 3.1.4 Preliminary CSS Hydraulic Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9 3.2 CHARACTERIZATION OF COMBINED SEWAGE AND CSOS . . . . . . . . . . 3-11 3.2.1 Historical Data Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11 3.2.2 Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 3.3 CHARACTERIZATION OF RECEIVING WATERS . . . . . . . . . . . . . . . . . . . . 3-13 3.3.1 Historical Data Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13 3.3.2 Mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17 3.4 IDENTIFY DATA GAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18