The EPA Office of Wastewater Management Sustainable Communities Branch has an online forum where one can post documents and technical issues/problems for information and discussion about small wastewater treatment systems. While anyone can read forum content, one must register (very simple) in order to start topics, post comments, or upload material.
Go to the forum [1]
Format:
Website (with more resources)
Topic:
Operations (technical)
Source:
Environmental Protection Agency (EPA)
Audience:
Operator