Below are four draft technical support materials intended to assist states and authorized tribes in adopting the new selenium criterion, monitoring fish tissue, assessing and listing waters under CWA section 303(d), and NPDES permitting. Comments on the technical support materials are accepted at regulations.gov (Docket ID No. EPA-HQ-OW-2016-0551). The comment period ends February 10, 2017. The EPA extended the comment period by sixty days to allow more time to collect data and provide substantive comments.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Technical Support for Adopting and Implementing EPA’s 2016 Selenium Criterion in Water Quality Standards - Draft (PDF)(15 pp, 384 K)
- Technical Support for Fish Tissue Monitoring for Implementation of EPA’s 2016 Selenium Criterion - Draft (PDF)(48 pp, 738 K)
- Frequently Asked Questions (FAQs): Implementing the 2016 Selenium Criterion in Clean Water Act Sections 303(d) and 305(b) Assessment, Listing, and Total Maximum Daily Load (TMDL) Programs - Draft (PDF)(14 pp, 362 K)
- Frequently Asked Questions (FAQs): Implementing WQS that Include Elements Similar or Identical to EPA’s 2016 Selenium Criterion in Clean Water Act Section 402 NPDES Programs - Draft (PDF)(13 pp, 452 K)