Category: Standards & Technical Support

Wasteload Analysis for Developing Permit Limits

Introduction A waste load allocation (WLA) is the portion of a receiving water’s assimilative capacity that is allocated to one of its existing or future point sources of pollution. DWQ conducts a waste load analysis to calculate the maximum amount of a pollutant that a waterbody can receive and still meet water quality standards. Computer …

Read More

Supporting Documents for Rule Changes to Water Quality Standards

Summaries are compilations provided to identify the specific date a rule change was proposed. Complete supporting materials are found in the specific date links below. 2010-2012 Summary Date Proposed to Water Quality Board June 26, 2013 February 20, 2013 January 23, 2013 January 25, 2012 September 28, 2011 May 18, 2011 August 25, 2010 March …

Read More

Standards and Technical Services Subworkgroups

The Water Quality Standards Workgroup is seeking participants for subworkgroups to assist in drafting changes to Standards of Quality for Waters of the State. Any interested persons can participate. Current topics include: Narrative Standard and biological criteria, 401 Certifications, Antidegradation, and Total Dissolved Solids (TDS) Standards. For more information contact Chris Bittner. The outline below …

Read More

Antidegradation Subworkgroup

Disclaimer: Documents on this page may be draft or deliberative and should not be construed to represent the position of the Director of the Utah Water Quality Board, the Utah Division of Water Quality, or workgroup members. This page is maintained for the convenience of workgroup members. Jump to: Document Archive Meeting Schedule Supporting Materials …

Read More

Triennial Review 2008

The following documents are provided as supporting documentation for the proposed changes to the Utah Water Quality Standards (WQS) as of July 15, 2008. Antidegradation Example Antidegradation Review Wording Assessment Methodology Dissolved Oxygen Wording E. coli Wording Fact Sheet: Great Salt Lake Selenium Fact Sheet: Proposed Revisions: Triennial Review 2008 Final Proposed Changes to R317-002 …

Read More

Water Quality Standards

Standards for Quality for Waters of the State are contained in UAC R317-2. The water quality standards are intended to protect Utah’s waters and improve the quality for beneficial uses. Beneficial uses include drinking water, fish and aquatic life, wildlife, agricultural, industrial, and recreational uses. Once the beneficial uses are established, criteria that are protective …

Read More

Standards Workgroup

Jump to: Meeting Archive The WQS Workgroup members are volunteers selected so that different stakeholder perspectives are considered when standards are developed. Stakeholders who want to bring additional perspectives to the Workgroup are encouraged to work through a Workgroup member. Recommendations and opinions of Workgroup members are not binding nor is a Workgroup review required …

Read More

Antidegradation Reviews – Water Quality

The central goals of the Clean Water Act and the Utah Water Quality Act are to protect, maintain, and restore the quality of Utah’s waters. One way in which this is accomplished is through Utah’s water quality standards, which consist of: designated uses (e.g., aquatic life, drinking water, recreation) water quality criteria (both numeric and …

Read More

Triennial Review – Water Quality

DWQ is required to review Utah’s Water Quality Standards at least once every three years. This process, called the Triennial Review, is required by Section 303(c) of the Clean Water Act. In addition to an internal review by DWQ, the review must include the EPA and public. The review is intended to provide an opportunity …

Read More

Guidance – Water Quality Standards

2017 Utah Implementation Guidance for the 2013 USEPA Ammonia Criteria for the Protection of  Aquatic Life (1.52 MB) Waste Load Allocation Procedures (1.06 MB) Standards Support Documents 2019 Standards Revisions Support Document (2 MB) Attachment 2: Criteria Support Document: Site-specific criteria based on recalculated aquatic life water quality criteria for ammonia for a segment of Mill Creek …

Read More