Colorado department of public health and environment
WATER QUALITY CONTROL COMMISSION
5 ccr 1002-37
REGULATION NO.  37
CLASSIFICATIONS AND NUMERIC STANDARDS
FOR
LOWER COLORADO RIVER BASIN 
. . . . 
37.26	STATEMENT OF BASIS SPECIFIC STATUTORY AUTHORITY AND PURPOSE DECEMBER 2009 RULEMAKING REGARDING TEMPORARY MODIFICATIONS; FINAL ACTION FEBRUARY 8, 2010; EFFECTIVE DATE JUNE 30, 2010
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:  The ammonia temporary modification on White River Segment 21 was deleted because the Town of Rangely’s permit had recently been reissued for discharges on the segment.  Compliance schedules in recently issued permits are adequate to address any necessary treatment plant upgrade issues.
No action:  The Commission took no action on the ammonia temporary modifications on the following segments.  These will expire 12/31/2011 and will be reviewed again in the December 2010 Temporary Modification hearing.
Lower Yampa River segment 2
Lower Colorado River segments 2a, 2b and 13b
Other Parameters:  The following temporary modifications were also reviewed.  The Commission took no action on these temporary modifications which will expire 12/31/2011 and will be reviewed again in the December 2010 Temporary Modification hearing.
Lower Colorado segment 4e		copper, iron, temperature
Lower Colorado River segment 13b	temperature
Lower Colorado River segment 13d 	selenium
 PARTIES TO THE RULEMAKING
1.	City of Grand Junction
2.	City of Colorado Springs and Colorado Springs Utilities
3.	Tri-Lakes, Upper Monument, Security and Fountain Wastewater Treatment Facilities
4.	Paint Brush Hills Metropolitan District
5.	Pueblo West Metropolitan District
6.	City of La Junta
7.	Seneca Coal Company
8.	Tri-State Generation and Transmission Association
9.	Plum Creek Wastewater Authority
10.	Centennial Water and Sanitation District
11.	City and County of Broomfield
12.	City of Fort Collins
13.	Metro Wastewater Reclamation District
14.	City of Black Hawk and the Black Hawk/Central City Sanitation District
15.	Colorado Division of Wildlife
16.	U.S. Environmental Protection Agency