Results: Across the country, hundreds of billions of gallons of groundwater are contaminated with uranium from early weapons development efforts and other activities. (pnnl.gov)
Businesses and municipalities waste billions of gallons of water each year in poorly timed lawn irrigation. (scientificamerican.com)
The time it takes to build a large - scale facility to produce billions of gallons; it takes three to four years just to build the facility once we know what to build. (scientificamerican.com)