Sanitary System Overflows

OWEA One Water Technical Conference June 24-27, 2019 PRESENTATION - June 26 from 8AM-8:45AM Huron, OH "Prioritizing Sewer Cleaning in Cincinnati with Acoustic Inspection" By: Todd Trabert, Principal Engineer | Cincinnati Randy Schneider, Principal Engineer | Cincinnati TriState Tri-State Seminar Aug 6-8 PRESENTATION - Tuesday, Aug 8 from 1PM-1:50PM Las Vegas, NV Utilizing Acoustic Inspection to Assess Sewer Conditions and Prioritize Maintenance in Sparks, NV By: Walt Woodard, InfoSense KY/TN 19 KY/TN Water Professionals Conference Booth #200 August 18-21, 2019 Louisville, KY PNCWA PNCWA Annual Conference Booth #301 Sept 8-11, 2019 Portland, OR PRESENTATION - Sept 9th at 10:30AM Walt Woodard, InfoSense Utilizing Acoustic Inspection Technology to Prioritize Sewer Cleaning WEFTEC 19 WEFTEC 2019 Booth #2805 Sept 21-25 Chicago, IL WWETT 20 WWETT 2020 Booth #5432 Feb 17-20, 2020 Indianapolis, IN WWett 19 Utah Rural 20 Rural Water Association of Utah Annual Conference Booth #801 Feb 24-27, 2020 St. George, UT Utah Rural WEFTEC 20 WEFTEC 2020 Booth #4111 Oct 4 - Oct 7 New Orleans, LA CSWEA 21 CSWEA Joint Collection Systems Seminar Feb 09, 2021 PRESENTATION: Tuesday Feb 9 11-11:45AM VIRTUAL EVENT Using Transmissive Acoustics to Prioritize Sewer Cleaning - by Charlie Rotman (InfoSense) & Jonathon Schmidt No dig 21 NASTT NO-DIG SHOW Mar 23 -26 2021 BOOTH # 414 Orlando, FL IWPC 21 Illinois Wastewater Professionals Conference Apr 19-22, 2021 BOOTH # 77 Springfield, IL WWETT 21 WWETT Show June 30-July 2, 2021 BOOTH # 605 Indianapolis, IN WaterCon 21 WaterCon Aug 9 -12, 2021 BOOTH #TBD Springfield, IL KY/TN WPC KY/TN Water Professionals Conference Aug 15 -18, 2021 BOOTH #TBD Chattanooga, TN PNCWA 21 PNCWA Sept 12-15, 2021 BOOTH #TBD Boise, ID WEFTEC 21 WEFTEC Oct 16 - 20, 2021 BOOTH #TBD Chicago, IL

Eagan SL-RAT User Improving Cleaning Efficiency at City of Eagan, Minnesota March 26, 2021 Clear Lines Provide Good Acoustics September 3, 2020 Bend, Oregon Incorporates Innovative Technologies to Meet Initiatives July 10, 2020 Little Rock's Award-winning Sewer Rehab Program Nixes Temporary Fixes July 8, 2020 Reducing Risk: How Oklahoma's Primary Municipal Insurer is Helping Utilities Prevent SSOs May 21, 2020 Acoustic Inspections Helps Rehoboth Beach, Delaware, Prioritize Cleaning April 23, 2020 Optimizing Root Control with Acoustic Inspections- Western Virginia Water Authority March 24, 2020 MSW Spotlight: SL-DOG Helps Manage Data February 20, 2020 SL-RAT Improving Sheridan's Sewer Program October 11, 2019 InfoSense BuyBoard status extended to all National Cooperative Members September 4, 2019 InfoSense Approved Buyboard Vendor through the Local Government Purchasing Cooperative (TX) July 30, 2019

Collection System Operators’ Challenge Determine Where & When to Deploy Cleaning Resources

Pipe Blockage – Root fibers (root balls) along with Fats, Oils & Greases are the dominant blockages in sewer lines. Finding these blockages is the challenge facing the Collection System Operator.

Dedicated wastewater utility operators around the world face the daunting challenge to manage the vast underground pipe network that transports raw sewage through their communities. Operators constantly balance a variety of challenges: an aging infrastructure, operation and maintenance (O&M) costs, and sewer system overflows (SSOs).  SSO causes include grease build up, improper disposal of household items, and pipe infiltration by tree roots .  Grease and root infiltration buildup very gradually before resulting in an overflow.  These events predominantly occur in the smaller diameter pipes (6-12”) used within neighborhoods where they damage the environment and can impact human health through the release of raw sewage.

Sanitary System Overflows – Resulting from challenge in locating sewer line obstructions – Pipe Blockages!

To avoid SSO’s, utilities must properly time their inspection and subsequent pipe cleaning operations to avoid blockages which currently requires a complex combination of inspection crews and cleaning crews. Operators are forced to rely on historical data and intuition to determine where they need to allocate precious resources to perform SSO preventative maintenance. This approach has limited success due to the seemingly random distribution of SSOs . Current products available to wastewater operators – such as Closed Circuit TV – do not allow them to cost effectively assess their sewer system for blockages.