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Code of Colorado Regulations eDocket
Official Publication of the State Administrative Rules (24-4-103(11) C.R.S.)

Details of Tracking Number  2015-00514


CCR details

Tracking Number 2015-00514
Type of Filing Permanent Rule
Department 1000 Department of Public Health and Environment
Agency 1002 Water Quality Control Commission (1002 Series)
CCR Number 5 CCR 1002-93
CCR Title REGULATION NO. 93 - COLORADO'S SECTION 303(D) LIST OF IMPAIRED WATERS AND MONITORING AND EVALUATION LIST

Proposed rule

Notice Filed with SOS 08/11/2015
Rule ProposedRuleAttach2015-00514.pdf
Statutory Authority sections 25-8-202(1)(a), (b), and (i), (2) and (6); 25-8-203; 25-8-204; and 25-8-401, C.R.S.; section 24-4-103(4) C.R.S.
Description of Subjects/Issues Revisions to the state's list of impaired surface water segments requiring total maximum daily loads (TMDLs), to Colorado's Monitoring and Evaluation List, and adoption of a new list of impaired water bodies NOT requiring TMDLs
Purpose/Objective of Rule This regulation establishes Colorado’s Lists of Impaired Waters. These waters include Water-Quality-Limited Segments Requiring Total Maximum Daily Loads (“TMDLs”), impaired waters that do not require a TMDL, and Colorado’s Monitoring and Evaluation List. The list of Water-Quality-Limited Segments Requiring TMDLs fulfills requirements of section 303(d) of the federal Clean Water Act which requires that states submit to the U.S. Environmental Protection Agency a list of those waters for which technology-based effluent limitations and other required controls are not stringent enough to implement water quality standards. Colorado’s Monitoring and Evaluation List identifies water bodies where there is reason to suspect water quality problems, but there is also uncertainty regarding one or more factors, such as the representative nature of the data. Water bodies that are impaired, but it is unclear whether the cause of impairment is attributable to pollutants as opposed to pollution, are also placed on the Monitoring and Evaluation List. This Monitoring and Evaluation list is a state-only document that is not subject to EPA approval. The list of Water-Quality-Limited Segments Not Requiring a TMDL identifies segments where data is available that indicates that at least one classified use is not being supported, but a TMDL is not needed.
Submitted in response to issues raised by COLS/OLLS? No
Is this rule adopted in response to recent legislation? No
Hearing Date 12/14/2015
Hearing Time 01:00 PM
Hearing Location Sabin Conference Room, CDPHE, 4300 Cherry Creek Drive South, Denver, CO 80246
Contact Name Aimee Konowal
Contact Title Environmental Data Unit Manager
Contact Telephone 303-692-3530
Contact email aimee.konowal@state.co.us

Adopted rule

Adopted Rules AdoptedRules02015-00514.DOC
Redline Redline2015-00514.doc
Adopted Date 01/11/2016
AGO requested date 01/12/2016
Attorney General Opinion 01/28/2016
Colorado Register publication date 02/10/2016
Effective Date 03/01/2016
Inserted into CCR 03/03/2016