Duncan, OK Approves Acoustic Technology for Improving Maintenance Efforts

The Duncan City Council approved amendments to their project budget agreement with Tetra Tech to incorporate acoustic inspection technology. The Sewer Line Rapid Assessment Tool, or SL-RAT, has helped hundreds of utilities with establishing condition-based maintenance practices and better deploy sewer maintenance resources.

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WEFTEC Paper: RATs in the House – Little Rock

RATs in the House – How Little Rock Water Reclamation Authority Moved from a Time-Based to a Condition-Based Sewer Cleaning Strategy

Abstract: Little Rock Water Reclamation Authority, Arkansas (LRWRA) manages ~1929 km (1100 mi) of small diameter (up to 30 cm or 12 in) gravity sanitary sewer mains. In January 2017, they implemented an acoustic inspection technology as a preliminary assessment tool to help prioritize cleaning operations. They successfully transitioned from a time-based to condition-based sewer maintenance program, improving their annual maintenance contact with the small diameter gravity system from 40% to 90%. In just their first year, LRWRA inspected 1555 km (966 mi), or ~70% of their collection system, reducing non-capacity sanitary sewer overflows by 35%, without hiring additional personnel.

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Now Hear This – Acoustic Inspection in New Castle, DE

Prior to integrating acoustic inspection, New Castle County (DE) relied on a time-based preventative maintenance approach that had limitations. As New Castle operations service manager explains, “Our operators were coming back, some of them frustrated that every pipe they cleaned was running clear water. It’s frustrating when you know your resources are limited and you know you’re cleaning pipes that don’t need to be cleaned.”

The Sewer Line Rapid Assessment Tool helped the county to recognized that of the areas tested, 78% were in good condition, requiring no additional work. With this insight, New Castle’s maintenance program was able to direct CCTV and cleaning resources to the areas of greatest need, saving time, water and money.

Read the full article from Trenchless Technology here.

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Cocoa, FL focuses maintenance efforts with SL-RAT

The City of Cocoa, FL integrated the Sewer Line Rapid Assessment Tool (SL-RAT) in February of 2017 to proactively scan their 200 miles of collections system for blockages. By utilizing acoustic inspection technology to quickly understand blockage conditions, they’ve been able to focus expensive cleaning resources on areas that need to be cleaned. The SL-RAT has helped in the development of Cocoa’s condition-based preventative maintenance program. Chris Collier, field operations manager of Cocoa describes the SL-RAT as a “game-changer in terms of operations.”

View the story feature in Municipal Sewer and Water here.

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Inspections, cleaning nearly eliminate Green Bay sewer backups

Green Bay’s Department of Public Works has reduced sewer backups by a drastic 94% since 2009 – from 267 reported backups in 2009 to just 13 in 2016. Improvements to their program have included integrating acoustic technology, which has helped them to gauze whether pipes are obstructed and need more expensive assets such as CCTVs or cleaning.

Reasons for sewer backups can be attributed to aging pipes, freezing and thawing of pipes, and roots that obstruct flow. The SL-RAT has allowed them to inspect a larger number of pipes and find troubles before they cause overflows.

Read full article and view video here.

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RATs in the House – Little Rock Presentation (WEFTEC 2018)

Little Rock Water Reclamation Authority implemented acoustic inspection technology in 2017. By screening 100% of their small diameter gravity sewers before cleaning, LRWRA was able to focus cleaning resources and reduce SSOs, while using less time to clean more debris.

Presentation Synopsis

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Village of Algonquin (IL) integrates SL-RAT for condition-based maintenance

“While our efforts to clean, inspect and televise are admirable, we’ve sought other technologies that might better utilize existing resources, and provide more timely assessment of our overall collection system. We believe we’ve found such technology with the SL-RAT or Sewer Line Rapid Assessment Tool.”

Bob Mitchard, Public Works Director of the Village of Algonquin, IL, describes the value of acoustic technology in a Committee of the Whole Meeting on March 13, 2018. Mitchard explains how the SL-RAT has helped their team transition to a condition-based assessment by showing where resources need to go. “While not a replacement for pipe cleaning, the acoustic approach can act as a precursor and focus energies where they need to be.”

Read full McHenry Times Article excerpt here

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SL-RAT featured as one of the “Best Money-Makers of 2017”

Cleaner Magazine included the Sewer Line Rapid Assessment Tool (SL-RAT) on their list of “The Best Money-Makers of 2017” – citing this acoustic inspection technology as one of the top tools that contractors relied on to keep their companies profitable.

“The SL-RAT provides a rapid assessment of pipe flow. Think of it as a pre-screening tool you can use before doing a conventional sewer cleaning and CCTV inspection. It can help prioritize the need to do expensive camera inspections.”

Read more here.

 

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Town of Uxbridge Implements SL-RAT to Focus Maintenance Program

Municipal Sewer & Water Magazine’s article highlights how the town of Uxbridge, MA is efficiently managing their 40-mile wastewater collections system with only a crew of six, by incorporating the Sewer Line Rapid Assessment Tool (SL-RAT). Since initiating the SL-RAT acoustic inspection program in the summer of 2015, the Uxbridge Department of Public Works has screened over 25% of it’s collections systems, proficiently focusing cleaning and CCTV resources to the 5-10% of pipes that have significant problems. No sanitary sewer overflows have occurred since the acoustic inspection program was implemented.

“The [SL-RAT] is used as a first-line blockage screening tool to help the town avoid wasting effort cleaning clean pipe. “It is amazing how quickly it gives you good information at very low cost,” Legg says. Uxbridge crews the equipment with two people who frequently inspect 10,000 or more feet per day.”

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Charlotte Business Journal Fast 50 Award 2017

InfoSense was recognized as a third time recipient of the Charlotte Business Journal’s  Fast 50 Award. Each year, the Charlotte Business Journal recognizes the 50 fastest-growing companies in the Charlotte region – InfoSense was ranked 48th. The Fast 50 companies have a combined annual revenue of $500 million and employ 4,000.

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