R 336.1229 Methodology for determining health-based screening levels.

Rule 229. (1) The initial and secondary risk screening levels for a carcinogen shall be determined by any of the following: (a) The cancer risk assessment screening methodology contained in R 336.1231. (b) The United States environmental protection agency guidelines for carcinogen risk assessment, adopted by reference in R 336.1902. (c) Any alternative cancer risk assessment methodology that can be demonstrated to the department to be more appropriate based on biological grounds and that is supported by the scientific data. (2) The initial threshold screening level shall be determined by either of the following: (a) The methodology for determining the initial threshold screening level contained in R 336.1232 or R 336.1233. (b) Any alternative methodology to assess noncarcinogenic health effects that can be demonstrated to the department to be more appropriate based on toxicological grounds and that is supported by the scientific data.