Tucson’s 20-mile Emergency Sewer Bypass PUMPS • TANKS • FILTRATION • PIPE • SPILLGUARDS 800 742 7246 rainforrent.com BACKGROUND Tucson, the second-largest city in Arizona, was impacted by aging infrastructure when a 5-mile stretch of the City’s 42” main sewer line failed and created three massive sinkholes in the downtown area. The break was caused by years of corrosion from naturally occurring hydrogen sulfide and the constant velocity of waste flowing through the pipe. The concrete pipe, originally several inches thick, was worn paper thin before it finally burst and spilled 5-7 million gallons-per-day of untreated sewage into the temporarily-dry Santa Cruz River. The City required a bypass system that would handle a 25 MGD daily flow, with 50% backup. OUTCOME To bypass the rup

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