Trenchless Technology

DEC 2018

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42 T R E N C H L E S S T EC H N O LO GY D EC E M B E R 2018 ONE OF THE MOST WELL-AT TENDED B O OT H S AT W E F T EC and the Water & Wastewater Equipment , Treatment & Transport Show (WWETT Show) doesn't attract people with shiny new equipment , smart technology or even top -notch swag . As a matter of fact , it 's the opposite of modern. NASSCO 's Sewer History Exhibit — an extensive display of collection system photos, artifacts and articles — showcases the history of sewerage and water systems in North America at these shows and other regional events. Created in 1993 by Jon Schladweiler, with the help of the AZ Water Association, for the Water Environment Federation's (WEF) specialty con- ference on Collection Systems: Operation and Maintenance, the exhibit is now in its 25th year. Since it was turned over to NASSCO in 2014, the exhibit continues to be curated by Schladweiler, who also manages a website, Helping Schladweiler co-curate the exhibit is Dave Hofer. Schladweiler recalls that the original concept , a photo -on- ly display for the 1993 conference in Tucson, Arizona, was intended as a one-off, but it was such a draw and attendees were so interested in the historical images that the concept of a recurring exhibit grew from there. "A couple years later, I was on a family vacation in Colo - rado and came upon a pile of wood stave pipe that was used by the mines. I got the blessing to take a piece of the pipe," Schladweiler says. That necessitated a trip to the local hard- ware store to purchase a saw and other tools. " I cut a laying length to a manageable size, brought it home and that was the first pipe artifact that began the physical display." From there, with the help of the AZ Water Association and the WEF Collection Systems Committee, Schladweiler put out the call for more artifacts and articles. There are approx- imately 25 artifacts, in addition to the photos, on display. Two of the oldest items are a piece of handmade clay pipe from a Spanish mission in California and a handmade wood log water pipe from Washington, D.C . According to Schladweiler 's research, the clay pipe was likely used to convey water from a well to other mission buildings. The log pipe, on which you can clearly see origi- nal axe marks, was part of the first water conveyance pipe installed in Pennsylvania Avenue in approximately 1810. While those may be the oldest, they are certainly not one of the largest pieces on display. That distinction goes to a section of cast iron water pipe from San Francisco. "It was cast in a small foundry in Spring Valley, California, in the mid-1800s, and had been in service in the San Francisco area, delivering water until the mid-1990s," Schaldweiler says. "They sent me the cast iron pipe, weighing about 250 lbs, and it arrived at the office of the public agency where I worked in Tucson. The secretary called and said I had a huge box that they used a pallet jack to bring in. It has since been cut down to a manageable size for the exhibit." As the exhibit grew, Schladweiler would take the display to shows within driving distance of Tucson. It wasn't until 2005 when it made its first appearance at WEFTEC in Wash- ington, D.C . It has been a staple at that show ever since. The WWETT Show was added to the schedule in 2015. "I think we have a collection that is usable and represents a cross section of the sewerage history and water history," Schlad- weiler says. "I think it is important for people involved in sewer Sewer History Exhibit Celebrates 25th Anniversary BY M I K E K E Z D I

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