Web site construction takes either time or dollars. Whether you decide to use a professional depends on which of these is the limiting factor.
Most Districts start out with a web site that tells visitors who they are, what they do, and how to get in touch with them. Districts tend to move up to using professional help in doing web site updates, restructuring or site reorganization.
The experience of building a few web pages makes that District a better client, because they understand what kind of time is involved in actually doing the work.
If you or a member of your conservation district staff is going to undertake web site development or management, factor in the time it will take to learn the software program; organize the material; select the graphics; converting the material to web files; uploading the web site; proofing the site; registering the pages; and maintenance.
The key is to get started. Build that first web page. Create that first site. Then if you need help - get it.