Case Study - July 2020

Case Study - July 2020

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Chemical treatment helps remove root infiltrations

Problem: 

Sanitary sewer overflows are one of the largest costs to municipalities, and the majority are root related. In one case, the town of Meno, Oklahoma, was experiencing stoppages and overflows throughout the city. In January 2019, Mayor Rick Goodman and the board of directors for the city of Meno decided to move forward.

Solution: 

In order to provide a comprehensive risk management program for its 500 municipalities, Oklahoma Municipal Assurance Group partnered with Duke’s Root Control to provide sewer root control treatments to participating municipalities via a $5,000 matching funds grant program. OMAG begins with providing a Sewer Line Rapid Assessment, or SL-RAT, tool from InfoSense to the participating municipality. The SL-RAT is a portable on-site assessment tool that identifies capacity issues in gravity-fed sewers within minutes, without the need for traditional CCTV and at a fraction of the cost. OMAG trained the team on its use and loaned them the instrumentation for two to three weeks. In Meno, 14,000 linear feet were inspected, and the SL-RAT identified significant blockages and poor scores. The lines were treated using Duke’s RazoRooter II, an herbicide-laden, thick foam that kills roots on contact, penetrating through wye connections and killing roots in laterals as well.

Result: 

Upon inspection of manholes after treatment, there were no stoppages and no overflows in the city. RazoRooter II allows roots to decay naturally and slough away, with regrowth delayed for two to three years. 800-447-6687; www.dukes.com. 



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