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Commercial Composting Toilet at Lewis & Clark College

A composting toilet (M54W Trailhead) will be installed on the campus of Lewis & Clark College in Portland, OR. Composting toilet systems generally provide a lower cost, lower impact option for restroom locations lacking existing access to utilities or in areas where improving access would be prohibitively expensive. Composting toilets provide significant environmental benefits when compared to conventional flush systems. In Portland, this system has the added benefit of reducing impacts on an already taxed sanitary and storm system, reducing its contribution to combined sewer overflows to the Willamette River.

Composting Toilets at the Six-Story Bullitt Center

The Bullitt Center is a unique, first-of-its kind office building in downtown Seattle at 1501 Madison Street. The building is designed to meet the rigorous standards of the Living Building Challenge (LBC), including Net Zero Energy and Net Zero Water. Working directly with the City of Seattle and their LBC pilot program, new technologies and design elements for sustainability were permitted or allowed through conditional-use permits, variances, and exclusive permissions from the city. Micro-foam-flush marine toilets with an onsite composting system are used to help achieve the Net Zero Water goal and adhere to the requirements of the city’s pilot program.