The Bureau has solicited public participation as part of the 2013 Triennial Review process with the announcement of a Scoping Phase which began last Spring. On April 3, 2013, the Bureau invited public input to identify issues of concern and to propose revisions for consideration in the standards, which ended on May 15, 2013. Bureau staff was also available to meet with stakeholder groups, as requested, for informal discussions regarding their issues of concern. On April 1, 2014, the Bureau published a Public Discussion Draft with proposals for changes to the water quality standards and a comment period for public input. The comment period for the Public Discussion Draft was conducted April 1 – May 30, 2014, and included a 30-day extension which was granted on April 28, 2014. During comment periods for both the Scoping Phase and Public Discussion Draft, the Bureau received comments from a variety of contributors including the U.S. Environmental Protection Agency (EPA), watershed/river conservation groups, municipalities, water districts, industrial/trade groups, private entities and citizens. All timely comments received have been compiled in alphabetic order, and are now available online. Responses to comments will be posted online once completed.