5 Colo. Code Regs. § 1002-34.37
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
The Commission's decision to delay consideration of nutrient criteria until March 2012 resulted in cancelation of the December 2011 review of temporary modifications and a three-month delay of the Regulation #34 basin-wide review. Accordingly, the Commission considered the expiration dates of temporary modifications expiring on or before December 31, 2012 in a written comment rulemaking. The Commission extended the expiration dates of the following temporary modifications to March 31, 2013. They would be reviewed during the September 2012 basin-wide rulemaking hearing.
San Juan segment 11a (Fe)
Animas segment 2 (all metals)
Animas segment 3a (Cd, Mn, Zn)
Animas segment 3b (all metals)
Animas segment 3c (Cu, Zn)
Animas segment 4a (Al, Fe, Zn, Cu, Cd, pH)
Animas segment 4b (Zn)
Animas segment 7 (all metals)
Animas segment 8 (all metals)
Animas segment 9 (Al Cu, Fe, Zn)
La Plata etc, segment 7a (NH3)
La Plata etc, segment 8a (Fe).
5 CCR 1002-34.37