ELR Citation: 53 ELR 20074
No(s). 20-1335 (D.C. Cir. May 9, 2023)

The D.C. Circuit vacated EPA's withdrawal of its determination to regulate perchlorate in drinking water. An environmental group argued EPA lacked the authority to withdraw the determination under the SDWA, and that even if it did have such authority, it acted arbitrarily and capriciously in doing s...