Code of Colorado Regulations
1000 - Department of Public Health and Environment
1002 - Water Quality Control Commission (1002 Series)
5 CCR 1002-33 - REGULATION NO. 33 - CLASSIFICATIONS AND NUMERIC STANDARDS FOR UPPER COLORADO RIVER BASIN AND NORTH PLATTE RIVER (PLANNING REGION 12)
Section 5 CCR 1002-33.58 - STATEMENT OF BASIS SPECIFIC STATUTORY AUTHORITY AND PURPOSE AUGUST 7, 2017 RULEMAKING; FINAL ACTION AUGUST 7, 2017; EFFECTIVE DATE SEPTEMBER 30, 2017
The provisions of C.R S. 25-8-202(1)(a), (b) and (2); 25-8-203; 25-8-204; and 25-8-402; provide the specific statutory authority for adoption of these regulatory amendments. The Commission also adopted in compliance with 24-4-103(4) C.R.S. the following statement of basis and purpose.
BASIS AND PURPOSE
Blue River Segment 14: Temporary Modification of the chronic molybdenum standard. Climax Molybdenum Company presented evidence that progress has been made on its plan to eliminate the need for a temporary modification and to resolve uncertainty associated with the underlying molybdenum standard of 210 ug/L on Segment 14. A third study sponsored by the International Molybdenum Association (IMOA) on the health effects of molybdenum was completed in late 2016. An abstract and a study report were made available to the Division and other interested stakeholders in early 2017. Because of unanticipated delays associated with the IMOA's finalization of the full study report it was necessary for the Commission to postpone the hearing concerning the molybdenum standards that was scheduled for August 2017. The molybdenum hearing will be held December 12, 2017. The current temporary modification expires December 31, 2017. In view of the above, the Commission extended the temporary modification in Segment 14 to December 31, 2018.
