Skip to main content

Changes in Design Standards for Wet Weather Solutions

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial

Abstract:

The Metropolitan Sewer District of Greater Cincinnati (MSDGC) serves approximately 800,000 residents in Hamilton County, Ohio. Hamilton County is in the southwest corner of Ohio, bordered on the west by Indiana and the south by the Ohio River. The District covers over 400 square miles, with approximately 3000 miles of sanitary and combined sewers. The MSDGC operates 7 major treatment plants, 140 pumping stations and the floodwall around the City of Cincinnati.

The MSDGC currently has identified ninety sanitary sewer overflows (SSOs). These SSOs are the result of wet weather and inflow and infiltration (I⊘I) entering the sanitary sewer system. The MSDGC has a very aggressive maintenance program to ensure that SSO activity does not result from collection system maintenance issues. (obstructions or blockages)

MSDGC actively maintains the collection system pipes, using various rehabilitation techniques as well as open-cut pipe replacement. However, in the case of replacement sewers, the design standard for new sewers was applied. This standard was based on sewage usage per day using an average of 1000 (g⊘ac⊘d) for infiltration and did not adequately represent the I⊘I contribution in areas with older sanitary sewers; particularly under represented were those areas with SSOs.

This paper will discuss the process to change existing design standards to reflect actual conditions and appropriate flow estimations.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864701784836195

Publication date: January 1, 2001

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites
wef/wefproc/2001/00002001/00000002/art00045
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more