EPA WOTUS Support Materials
EPA held a webinar today on the new WOTUS rule. A recording of it should be made available in the future. I'll post the link as soon as I see it go up on the website.
Meanwhile, EPA has posted a large number of support documents explaining the various aspects of the new WOTUS rule. Here's the link: https://www.epa.gov/nwpr/navigable-waters-protection-rule-step-two-revise#publicoutreach