AJH_221110_1557

Reservoir 5 at Mt Tabor Park was emptied by Portland Water Bureau in October 2022, to check for leaks in the liner, seen here. Reservoir 5 (1911) is one of three open reservoirs at Mount Tabor Park and of five total in Portland. Mount Tabor's three open reservoirs and their ancillary structures were placed in the National Register of Historic Places in 2004. The Environmental Protection Agency (EPA) 2006 regulation known as the Long Term 2 Enhanced Surface Water Treatment Rule (aka the LT2 Rule) imposed new requirements that open water reservoirs be covered, buried or additionally treated. This applies to Portland's five open reservoirs and to the unfiltered Bull Run source supplying them. These requirements could not practicably be met while maintaining these open reservoirs, and in 2016 all of the reservoirs at Mount Tabor were finally taken offline and permanently disconnected from Portland’s drinking water system. Portland, Oregon, USA.

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Contained in galleries: Mt Tabor Park / Water Reservoirs

Reservoir 5 at Mt Tabor Park was emptied by Portland Water Bureau in October 2022, to check for leaks in the liner, seen here. Reservoir 5 (1911) is one of three open reservoirs at Mount Tabor Park and of five total in Portland. Mount Tabor's three open reservoirs and their ancillary structures were placed in the National Register of Historic Places in 2004. The Environmental Protection Agency (EPA) 2006 regulation known as the Long Term 2 Enhanced Surface Water Treatment Rule (aka the LT2 Rule) imposed new requirements that open water reservoirs be covered, buried or additionally treated. This applies to Portland's five open reservoirs and to the unfiltered Bull Run source supplying them. These requirements could not practicably be met while maintaining these open reservoirs, and in 2016 all of the reservoirs at Mount Tabor were finally taken offline and permanently disconnected from Portland’s drinking water system. Portland, Oregon, USA.