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 modification of the ammonia standard on Yampa River segment 13d was deleted because the Town of Hayden's permit had recently been reissued. Compliance schedules in recently issued permits are adequate to address any necessary treatment plant upgrade issues.
Other Parameters: The temporary modifications of the iron standard for Yampa River segments 13d and 13e were 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.
PARTIES TO THE RULEMAKING
1. City of Grand Junction2. City of Colorado Springs and Colorado Springs Utilities3. Tri-Lakes, Upper Monument, Security and Fountain Wastewater Treatment Facilities4. Paint Brush Hills Metropolitan District5. Pueblo West Metropolitan District8. Tri-State Generation and Transmission Association9. Plum Creek Wastewater Authority10. Centennial Water and Sanitation District11. City and County of Broomfield13. Metro Wastewater Reclamation District14. City of Black Hawk and the Black Hawk/Central City Sanitation District37 CR 17, September 10, 2014, effective 12/31/201438 CR 03, February 10, 2015, effective 6/30/201539 CR 03, February 10, 2016, effective 3/1/201639 CR 03, February 10, 2016, effective 6/30/201639 CR 11, June 10, 2016, effective 6/30/201640 CR 03, February 10, 2017, effective 6/30/201740 CR 17, September 10, 2017, effective 9/30/201741 CR 03, February 10, 2018, effective 6/30/201841 CR 07, April 10, 2018, effective 6/30/201842 CR 04, February 25, 2019, effective 6/30/201942 CR 17, September 10, 2019, effective 12/31/201943 CR 03, February 10, 2020, effective 6/30/202044 CR 05, March 10, 2021, effective 6/30/202144 CR 17, September 10, 2021, effective 12/31/202145 CR 17, September 10, 2022, effective 9/30/202246 CR 10, May 25, 2023, effective 6/14/2023