CSO Long Term Control Plan

A requirement of the CSO Policy and the Morris Forman WTP NPDES Permit is the CSO long-Term Control Plan (LTCP). The LTCP for Region 1, Beargrass Creek, was originally issued as part of the 1996 Combined Sewer Operational Plan. The LTCP for the Ohio River Area, Regions 2 and 3, was originally issued as part of the 1997 Combined Sewer Operational Plan. During fiscal years 2000 and 2001, MSD completed studies to define the feasibility of ulitizing Real Time Control (RTC) as a major component of the CSO Abatement Program. The results of the studies have shown RTC to be a very cost-effective approach to reducing overflow volumes in each of the three regions. With MSD’s adoption of the RTC philosophy, the need developed to update the CSO LTCPs to reflect the newly proposed projects.

Monitoring Efforts

• Long-Term Monitoring Network
• Rain Gauge Network

Modeling Efforts

• CSO Model Update
• Beargrass Creek Water Quality Model

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