The following Power Point presentation is rich and detailed.  The file is quite large and require Free Adobe Reader to view.  Allow time to download especially if you have a slow connection.  It is available for use in its original form only without modification except by permission of the author.  Contact Dan.

Using MS Internet Explorer-- Right click, open in a new window. OR  if you wish to download to your drive, right click, save target as...

Dan Koury's Presentation to the EPA on Swatara Creek AMD and abatement projects