Mealey's (December 7, 2017, 9:08 AM EST) -- WASHINGTON, D.C. — The U.S. Army Corps of Engineers must work with Indian tribes to develop an oil spill response plan for the Dakota Access Pipeline (DAPL) while the Army Corps completes an environmental study on the pipeline’s impact on Indian land and waters, a District of Columbia federal judge ruled Dec. 4 (Standing Rock Sioux Tribe, et al. v. U.S. Army Corps of Engineers, et al., No. 16-1534, D. D.C., 2017 U.S. Dist. LEXIS 198603)....