Program Delivery Plan

EXECUTIVE SUMMARY
Accommodate growth in project areas
Comply with wastewater treatment plant National Pollutant Discharge Elimination
System (NPDES) permits
Comply with the terms of the Consent Decree
The Consent Decree (Civil Action 01-978-B-M3 United States of America and State of
Louisiana versus City of Baton Rouge, Parish of East Baton Rouge) states that the Collection
System Remedial Program projects shall be completed by January 1, 2015.
In preparing this PDP, the locations of known overflows are given highest priority in order
to reduce the frequency of these overflows. Areas of the collection system that were found
to have excessive levels of infiltration or inflow are also identified for rehabilitation.
Hydraulic capacity improvement projects are sized to accommodate the predicted designed
peak wet weather flows and anticipated growth in the project areas. Peak wet weather flows
were predicted based on the previously selected 2-year frequency, 12-hour duration design
storm. Figure ES-1 shows the ten hydraulic basins used in the evaluation of the program.
Program Description
3BCoComprehensive Rehabilitation Projects
Sewer system comprehensive rehabilitation projects will be implemented to repair or
replace components of the system that are defective and permit excessive infiltration and
inflow.
The comprehensive rehabilitation portion of the program consists of 30 construction projects
located throughout the C-P. The first projects began in 2008, and the last project is scheduled
for completion in late 2014. Approximately, four to six projects will begin construction each
year. Design and construction will be continuous through 2014. Approximately 5 million
feet of the gravity sewer will be inspected through execution of these rehabilitation projects.
The areas selected for comprehensive rehabilitation are shown on Figure ES-2. Projects
within these areas are described in detail in the body of this plan. The estimated total
program cost of the comprehensive rehabilitation projects is approximately $260 million in
September 2007 dollars.
4BCapacity Improvement Projects
Capacity improvement projects have been defined based on three factors:
1. Computer “InfoWorks Model” comparison of existing capacity to predicted peak wet
weather flows
2. Physical evidence of inadequate capacity based on C-P Department of Public Works
(DPW) records
3. Predicted growth in demand for wastewater capacity
Capacity projects include replacement of inadequately sized gravity sewers and force mains
as well as rehabilitation or replacement of pump stations.
Those projects located nearest to the wastewater treatment plants are in general, scheduled
in the earlier years in the program.
GNV31031158570.DOCX/110050012 ES-2 JANUARY 2011
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