We noticed that you're not using the latest version of your browser. You'll still be able to use our site, but it might not work or look the way it's supposed to. We recommend upgrading your browser.
JOURNAL OF WATER MANAGEMENT MODELING JWMM
AUTHORS
REVIEWERS
ABOUT
RESOURCES
Menu SEARCH LOGIN
Software
Tap in to water management modeling that excels. PCSWMM is flexible, easy to use and streamlines your workflow – saving you time and resources.
Training
Beginner or seasoned user, our flexible training options help you understand and master the full capabilities of both EPA SWMM5 and PCSWMM.
Community
There's a whole community to support you - find solutions, view code and more.
OPEN SWMM
OPEN EPANET
Journal
Our peer-reviewed, open-access Journal of Water Management Modeling. Expand your knowledge, get insights and discover new approaches that let you work more effectively.
Conference
The International Conference on Water Management Modeling. Meet your colleagues, share your experiences and be on the forefront of advances in our profession.
Consulting
Not sure how to solve a complex water management issue? Put our experience, knowledge, and innovation to work for you.
  • AUTHORS
  • REVIEWERS
  • ABOUT
  • SEARCH
  • RESOURCES
    Software
    Training
    Community
    OPEN SWMM
    OPEN EPANET
    Journal
    Conference
    Consulting

JWMM Login

Verifying credentials  Don't have an account?
Forgot your password?

A GIS and SWMM Modeling Application for Sewer Separation Design

Sharon Ho, Dominique Brocard, Lawrence Soucie and Thomas Daly (2001)
Metcalf & Eddy; Boston Water & Sewer Commission
DOI: https://doi.org/10.14796/JWMM.R207-13
Comments

Collapse all
Collapse all

Abstract

Partial or complete separation of combined sewers is one of the strategies that can be employed to control or eliminate combined sewer overflow (CSO) discharges. Separation of combined sewers can be expensive and disruptive to communities, since it involves digging up the street. In many urban areas, roof drains from houses are connected to sewers via downspouts (outside piping), or through roof leaders (internal plumbing). Disconnection of roof drainage connected to the sewer via internal plumbing can be very expensive and disruptive. In addition, experience has shown that it is very difficult to remove 100% of rainfall-induced inflow in a sewer. When storm drainage is removed from combined sewers, they become sanitary sewers carrying a small amount of residual inflow. The residual inflow may originate from a variety of sources such as leaky manholes, leaks in pipes, or building sump pumps. Quantification of this residual inflow is important since it affects the CSO activation frequency and thus the degree of roof drainage separation that must be undertaken to achieve CSO elimination goals.

Many hydrologic models employ coefficients to represent the directly connected impervious area (DCIA). These coefficients represent the fraction of the drainage basin that contributes flow to a drainage system. In general, this coefficient is proportional to the total amount of impervious area in the region. If sufficient geographic information and field data is available, it is possible to determine the contribution of runoff from different land-uses, and thus estimate the contribution of runoff from connected buildings to a combined system. This information in turn can be used for hydraulic modeling to estimate the number of buildings to disconnect to prevent the occurrence of CSOs. This chapter presents an application of this approach that was used for a sewer separation project in Boston.

This paper is only available in PDF Format:

  View full text PDF

Image


Expand all

PAPER INFO

Identification

CHI ref #: R207-13 998
Volume: 9
DOI: https://doi.org/10.14796/JWMM.R207-13
Cite as: CHI JWMM 2001;R207-13

Publication History

Received: N/A
Accepted: N/A
Published: February 15, 2001

Status

# reviewers: 2
Version: Final published

Copyright

© 2001 CHI. Some rights reserved.

License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

The Journal of Water Management Modeling is an open-access (OA) publication. Open access means that articles and papers are available without barriers to all who could benefit from them. Practically speaking, all published works will be available to a worldwide audience, free, immediately on publication. As such, JWMM can be considered a Diamond, Gratis OA journal.

All papers published in the JWMM are licensed under a Creative Commons Attribution 4.0 International License (CC BY).

JWMM content can be downloaded, printed, copied, distributed, and linked-to, when providing full attribution to both the author/s and JWMM.


AUTHORS

Sharon Ho

Metcalf & Eddy, Wakefield, MA, USA
ORCiD:

Dominique Brocard

Metcalf & Eddy, Wakefield, MA, USA
ORCiD:

Lawrence Soucie

Metcalf & Eddy, Wakefield, MA, USA
ORCiD:

Thomas Daly

Boston Water & Sewer Commission, Boston, MA, USA
ORCiD:


ADDITIONAL DATA

 

COMMENTS

Be the first to comment.

RELATED PAPERS

 


TAGS

 

Connect With Us

Journal of Water Management Modeling
ISSN: 2292-6062

  info@chijournal.org

147 Wyndham St. N., Ste. 202
Guelph, Ontario, Canada, N1H 4E9
About JWMM

Mission and intent

Editorial board

Review process

Disclaimer

Privacy policy

For Authors

Submit paper

Author checklist

Journal paper template

Reference guide

Unit conversion table

For Reviewers

Reviewing guidelines

Criteria to be used

Standards of acceptance


Copyright 2023 by CHI