Regulations.gov document: U.S.EPA. 1993. Report to the United States Congress on Radionuclides in Drinking Water: Multimedia Risk and Cost Assessment of Radon in Drinking Water (Draft). Office of Water. Prepared for PL 102-389. July 15, 1993 [PHASE-III-RADS-III-L4C-1] — retained record — High Signal
Regulations.gov document: U.S.EPA. 1993. Report to the United States Congress on Radionuclides in Drinking Water: Multimedia Risk and Cost Assessment of Radon in Drinking Water (Draft). Office of Water. Prepared for PL 102-389. July 15, 1993 [PHASE-III-RADS-III-L4C-1]