5 Colo. Code Regs. § 1002-35.25
The provisions of sections 25-8-202 (1)(b) and (2); 25-8-204; and 25-8-402 C.R.S. provide the specific statutory authority for the adoption of these regulatory amendments. The Commission also adopted in compliance with section 24-4-103(4) C.R.S. the following Statement of Basis and Purpose.
BASIS AND PURPOSE
As the result of a June, 1997 rulemaking hearing considering numerous proposed revisions to Gunnison River Basin water quality standards, the Commission decided to apply recently revised aquatic life table value criteria for selenium (20 ug/l acute and 5 ug/l chronic) to many segments in the basin. The basis for this action is discussed in paragraph 14 of the Statement of Basis and Purpose for that rulemaking (section 35.21). However, it was later noticed that in that rulemaking the Commission inadvertently neglected to revise the listing of selenium table values contained in section 35.6 of the regulation. In this rulemaking, the Commission is correcting the listing of selenium table values in section 35.6 . The Commission is also deleting reference to March 2, 1998 effective date for silver table values, since that date has now passed.
5 CCR 1002-35.25