TY - CONF A1 - Llewellyn, A A1 - Marinas, B T1 - The effectiveness of uranium and arsenic removal using bone char in the Pine Ridge Reservation drinking water. Y1 - 2009// N1 - SU834713 ER - TY - CONF A1 - Llewellyn, A A1 - Werth, C T1 - The effectiveness of uranium and arsenic removal using bone char in the Pine Ridge Reservation Drinking Water. Y1 - 2010// N1 - SU834713 ER - TY - CONF A1 - Maraccini, P A A1 - Parker, K M T1 - Oglala Lakota Water Project--mechanism to remove arsenic and uranium from private well water. N1 - SU834713 ER - TY - CONF T1 - Oglala Lakota Water Project--bone char filter to remove arsenic and uranium from private well water. Y1 - 2011/04/4 N1 - SU834713 ER -