Wells, Colorado River to be impacted by water projects Posted in: News More than 195 domestic and livestock wells that pump water from the Carrizo formation of the Carrizo-Wilcox Aquifer in Bastrop and Lee counties will run dry under newly proposed allowable drawdowns in the region. At least 19 more of these wells in the Carrizo will need to be redrilled and their pumps lowered. Hundreds of domestic and livestock wells in other formations, such as the Calvert Bluff and Simsboro, will likely be impacted, too. Those are projections by the Simsboro Aquifer Water Defense Fund (SAWDF), based in part on existing conditions in Burleson and northeastern Lee counties. Carrizo wells in that area ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!