5 Colo. Code Regs. § 1002-36.28
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
Pursuant to the requirements in the Basic Standards (at 31.7(3)), the Commission reviewed the status of temporary modifications to determine whether the temporary modification should be modified, eliminated or extended.
Ammonia: Temporary modifications of ammonia standards on five segments were reviewed.
Deleted: Ammonia temporary modifications were deleted on the following segments because in most cases permits had recently been reissued for dischargers on the segments. Compliance schedules in the permits are adequate to address any necessary treatment plant upgrade issues. In other cases, no permits now discharge to this segment.
Rio Grande segment 12
Alamosa River segment 18
Closed Basin segments 13b and 14
Detail added: The chronic ammonia temporary modification for Closed Basin segment 3 was modified to clarify that the chronic standard's value is 0.06 mg/l, rather than just "TVS old."
This temporary modification will expire 12/31/2011 and will be reviewed again in the December 2010 Temporary Modification hearing.
PARTIES TO THE RULEMAKING
5 CCR 1002-36.28