Skip to main content

Private Property I/I Control Program in Greencastle, Indiana

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The City of Greencastle initiated an infiltration/inflow (I/I) reduction program to reduce I/I from private property sources in 2003. Greencastle's I/I policy requires certified inspectors to document that privately-owned properties do not contribute excessive rain water to the sanitary sewer systems. Residential properties are inspected upon requests for a new water service, which typically occurs upon change of ownership. Non-residential properties were required to be inspected within two years of program initiation and have been completed. If an inspection finds a defect, property owners must either fix the defect immediately or apply for a waiver. A waiver can only be granted when fixing the defect is impractical or too costly. Compliance inspections typically cost 30 to 50 and are scheduled and paid for by the homeowner.

The policy is making a difference. After just a few years in effect, WWTP operators noted lower average daily flows and lower peak flow rates. Prior to implementing the policy and companion public side I/I removal efforts, rain events would often cause peak flows of 16 million gallons per day (MGD). Currently, heavy rains are needed for peak flows to exceed 5 MGD. Before the policy, the treatment plant would need to treat increased flows for several days and sometimes weeks after a rain event. Now, operators observe that treatment plant flows return to normal within 24 hours. Manholes that frequently surcharged to the surface prior to implementing the policy now do not surcharge. The City views the policy as an unqualified success at reducing I/I in the collection system.

The United States Environmental Protection Agency (USEPA) and the Water Environment Research Foundation (WERF) jointly funded a program to document the effectiveness of the I/I reduction program. In the spring of 2007, Greencastle installed flow metering at four of locations that had been metered prior to initiating the I/I reduction program which allowed a comparison of pre- and post-rehabilitation flow rates. This paper reviews the design of the program, provide an update on the implementation of the program, and presents data documenting costs and benefits.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: 2008-01-01

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.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect 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