The Essentials of Reducing SSOs
A Sanitary Sewer Overflow (SSO) reduction program that successfully eliminates Infiltration/Inflow and maintenance defects must include a comprehensive program using proven techniques. RJN Group, Inc. has developed, enhanced, proven, and applied successful techniques in wastewater systems throughout the United States.
These essential tasks include:
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Detecting I/I sources (both public and private sectors)
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Identifying maintenance defects
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Hydraulic modeling to determine the capacity improvements, and storage
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Understanding design and construction techniques used in wastewater collection system rehabilitation
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Inspecting and testing rehabilitation construction
Capabilities in Source Detection
The key to a successful I/I flow reduction program is accurately determining the amount of I/I entering the system and identifying the sources. RJN has developed proven techniques for identifying and quantifying I/I sources including:
Continuous depth/velocity flow monitoring
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Manhole/visual pipe inspection
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Intensive dual blower smoke testing
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Internal/external building inspection
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Dyed water flooding
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Enhanced internal TV inspection
Computerized Analysis of Sanitary Sewers
Over the past 20 years, RJN has continually enhanced the Computer Analysis of Sanitary Sewers (CASS) series of computer programs that:
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Calibrates the inflow-rainfall relationship techniques developed by RJN
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Models individual I/I sources within the collection system
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Links I/I source defect modeling to facilitate the elimination of SSOs
RJN’s Proven Performance Record
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RJN has eliminated SSOs and basement backups throughout the country demonstrating compliance with state and federal regulations
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In cities where RJN’s comprehensive approach was used, the I/I flow reduction predicted was met or exceeded.
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RJN consistently completes projects on schedule and within budget
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Using our proven methods, RJN will provide the best solution for our clients’ wastewater collection systems
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