Frac Sand Deposits Are Abundant In Wisconsin | WisContext
2016-12-19· Over the early 2010s, Wisconsin saw a dramatic increase in the number of new frac sand mine and processing plant proposals. This rapid expansion was more than state and local officials were used to handling, Wisconsin Geological and Natural History Survey geologist Jay Zambito said in a Jan. 28, 2015, talk recorded for Wisconsin Public Television's University Place .