The purpose of this project is to eliminate the occurrence of repeat sewer overflows due to severe concrete and debris blockage from an active recycled concrete facility located northwest of Marietta Boulevard NW and Niles Avenue NW. The pipeline will redirect the current extraneous flows from the existing 12 inch and 15 inch sanitary sewer trunk lines. The existing 15 inch sewer line will be realigned and roughly 2,100 linear feet of 18 inch ductile iron pipe encased in a 36 inch steel sleeve will be installed. Approximately 8 new manholes will be installed along the sewer realignment.

The Atlanta Memorial Park Technical Advisory Group (AMPTAG) and the City of Atlanta Department of Watershed Management (DWM) have come together with the common goal to eliminate wet weather overflow within and near Memorial Park, as well as Peachtree Creek Sewer Basin. Another goal of the collaborative is to protect water quality in Peachtree Creek.

Small Diameter Rehabilitation consists of defined scope contracts that propose to rehabilitate the small diameter sanitary sewers, typically 8-inch – 24-inches in diameter, that were identified as requiring repairs under the Sewer System Evaluation Survey (SSES) and required by the First Amended Consent Decree. Under these projects small diameter sewers will be rehabilitated utilizing such methods as: cured-in-place pipe lining techniques (CIPP), pipe bursting (PB), horizontal directional drilling and conventional excavation. Work will also consist of the rehabilitation of manholes and also includes pre-cleaning of manholes and sewers. Structural upgrades to the system are necessary to replace old and deteriorated sewers in order to maintain the reliability of the sewers.

In July 2001, the EPA and state EPD approved the City’s plan to eliminate water quality violations from CSOs. The City’s approved plan was to construct a CSO tunnel and sewer separation of selected sewer areas. This would improve water quality in our local streams and creeks by reducing the number of CSOs.

Sewer Capacity Relief projects are necessary to upgrade the existing large diameter system which typically ranges from sewers 36-inch in diameter and greater, to eliminate sanitary sewer overflows and capacity limitations. These projects were identified for implementation to ensure adequate capacity leading to the elimination of sanitary sewer spills….read more

Sewer Annual Contracts provide a response mechanism for the program to repair sewers that require immediate action due to sewer spill incidences and structural deficiencies that pose a risk to public health and safety. These contracts are necessary to enhance the response time from request for emergency repairs and unexpected maintenance demands. Such repairs of the sanitary sewers will eliminate the immediate threat caused by the emergency thereby reducing the amount of extraneous flows, infiltration and inflow (I/I) entering the system. In addition, these repairs will reduce the amount of untreated sewage flowing into streams and creeks as a result of sanitary sewer overflows.

The Sewer System Evaluation Survey (SSES), required by the First Amended Consent Decree (FACD), was designed to evaluate the condition of the City’s sanitary sewer system. The SSES program uses various equipment and techniques to detect sewer pipe defects, blockages and capacity problems. …read more