The Wyoming Department of Environmental Quality/Water Quality Division (WDEQ/WQD) has finalized revisions to a guidance document titled Wyoming’s Methods for Determining Surface Water Quality Condition. The document describes requirements for: sampling and analysis plans, data sufficiency, and quality assurance and quality control for evaluating Wyoming’s surface water quality standards to determine designated use support. WDEQ/WQD released a draft of the document in March 2017 and accepted comments until May 5, 2017. WDEQ/WQD has reviewed the comments and provided written responses to those comments. Questions regarding revisions to this document can be directed to Lindsay Patterson at Lindsay.Patterson@wyo.gov or 307-777-7079.