BACA-PREWITT, NAVAJO NATION, NM — As part of its ongoing collaboration with the DigDeep Navajo Water Project, the International Water, Sanitation and Hygiene Foundation (IWSH) recently designed and ...
In an office on Jefferson Street, Bartelt Engineering’s staff is designing green solutions to treat winery wastewater, using thousands of wriggling worms. The wastewater treatment systems they are ...
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