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(4) The residual radioactivity distinguishable from  |  | background radiation in groundwater sources of drinking  |  | water results in a total effective dose equivalent of not  |  | more than 4 millirems, or 0.04 millisievert, per year to  |  | the average member of the critical group. |  
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 |   | | A nuclear facility owner shall demonstrate compliance with  |  | subparagraphs (1) to (4) using actual measurements and the  |  | analytic methodology approved by the United States Nuclear  |  | Regulatory Commission and supplemented by modeling the  |  | effects of engineering controls that have been designed to  |  | reduce exposure. |  
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 |   | | In order to determine compliance with subparagraphs (1) to  |  | (4), the department may require appropriate testing and  |  | analysis, including, but not limited to, analysis of the  |  | effectiveness and integrity of engineering controls. |  
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 |   | | B.__As used in this subsection, unless the context otherwise  |  | indicates, the following terms have the following meanings. |  
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 |   | | (1)__"Average member of the critical group" means a  |  | member of the critical group who is subjected to the  |  | most likely exposure situation based on prudently  |  | conservative exposure assumptions and parameter values  |  | within the model calculations. |  
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 |   | | (2)__"Critical group" means the group of individuals  |  | reasonably expected to receive the greatest exposure to  |  | residual radioactivity for any applicable set of  |  | circumstances. |  
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 |   | | (3)__"Nuclear facility owner" means the owner of a  |  | nuclear power plant or decommissioned nuclear power  |  | plant in the State. |  
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 |   | | (4)__"Total effective dose equivalent" has the same  |  | meaning as in 10 Code of Federal Regulations, Section  |  | 20.1003, as in effect on January 1, 2000. |  
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 |   |  | This bill clarifies the existing low-level waste law by  |  | providing that a decommissioned nuclear facility at which the  |  | radioactive material is removed only in accordance with federal  |  | standards is subject to approval by the voters in a statewide  |  | referendum.  It also provides that such a facility is subject to  |  | referendum even if it has not been approved as a low-level waste  |  
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