Clean Water Shreveport

Hot Spot Cleaning Program

Hot Spot Cleaning & CCTV Program for Sanitary Sewer Overflows in the City of Shreveport

Compliance EnviroSystems (CES) compliance vehicle on-site for a standard Hot Spot inspection.

The Hot Spot Cleaning & CCTV Program, managed by the Program Management Consultant (PMC) – Clean Water Shreveport, is a crucial initiative undertaken by the City of Shreveport to investigate and address issues related to sanitary sewer overflows (SSOs). This report provides a comprehensive overview of the program, detailing its objectives, approach and outcomes over the past three years, with data available up to August 2023. The program aims to identify and mitigate dry weather SSO occurrences, prevent future SSO incidents and ensure the effective operation of the City’s sanitary sewer system. The Hot Spot Cleaning & CCTV Program was initiated in March 2021, to address the persistent problem of sanitary sewer overflows, particularly during dry weather conditions in the City of Shreveport. The primary goal of the program is to investigate sewer systems in areas with a history of SSOs and proactively prevent future SSO incidents through targeted cleaning and rehabilitation efforts.

Program Approach

The PMC, known as Clean Water Shreveport, plays a central role in the program’s execution. It conducts a thorough review of each SSO occurrence reported by the City’s Environmental Department to Louisiana’s Department of Environmental Quality (LDEQ) on a monthly basis. Information is recorded and analyzed using the City’s work order management system, Cityworks. The program identifies sewers and sanitary manholes associated with reported dry weather SSOs and areas where wastewater conveyance may be compromised.

Program Evolution

The program’s scope has evolved over the years. The initial program, launched in 2021, focused on sewers linked to dry weather SSO occurrences reported from January 2017 to November 2020. Subsequent program scopes expanded to include nearby sewers contributing to the sanitary sewer system’s diminished capacity. In total, the initial program resulted in the inspection and cleaning of approximately 295,000 linear feet of gravity sewer main across 24 sub basins in the City.

Program Outcomes

2022 Program
The 2022 program encompassed investigations of dry weather SSOs reported from December 2020 to October 2021, wet weather SSOs reported from January 2017 to October 2021, and sewers identified in the 2021 program requiring regular maintenance. Approximately 120,000 linear feet of gravity sewer were inspected and cleaned in 18 of the City’s 27 subbasins.

2023 Program
The 2023 program focuses on SSOs reported from November 2021 to March 2023, along with sewers identified in the 2021 and 2022 programs requiring regular maintenance. As of September 6, 2023, approximately 100,000 linear feet, or roughly 50% of the program’s scope, has been completed in 18 subbasins.

Crew members of Compliance EnviroSystems (CES) monitor a live camera feed of Hot Spot cleaning.

Collaboration with Compliance EnviroSystems (CES)

The PMC manages the City’s private CCTV contractor, Compliance EnviroSystems (CES), which carries out targeted “Hot Spot” cleaning and inspection work throughout the wastewater system. CES’s work is in addition to regular cleaning and inspections conducted by City crews. This collaborative effort helps mitigate future SSOs, identifies sewers in need of repair, and ensures proactive maintenance of the sanitary sewer system.

Data Utilization and Capital Improvement Projects

The final deliverables from CES, including CCTV videos of sewer pipes and condition assessment reports, are invaluable for scoping future capital improvement design projects for the city’s sewer infrastructure. This data aids in maintaining a functional collection system and supports the City’s long-term sanitation goals.

The Compliance EnviroSystems (CES) camera in live action just before it's deployed into the sewer line.

Program Impact

Since its inception in March 2021, the Hot Spot Cleaning & CCTV Program has expanded its focus from dry weather SSOs to encompass all reported SSO locations. This proactive approach has led to a noticeable decline in reported SSO incidents, demonstrating the program’s effectiveness in achieving its primary objective.

The Hot Spot Cleaning & CCTV Program represents a critical initiative for the City of Shreveport in addressing sanitary sewer overflows and maintaining the functionality of its sewer system. Through a combination of meticulous investigations, targeted cleaning efforts, and
collaboration with Compliance EnviroSystems, the program has made substantial progress in mitigating SSO occurrences. As the program continues to evolve and expand, it is expected to contribute significantly to the city’s sanitation efforts in the years to come.

Note: Data for 2023 is available only until August and does not include September, October, November, or December.