GeoNotes

EPA appears to be using ESRI’s ArcIMS 9.2 OGC connectors to publish OGC WMS/WFS services of their WATERS data.

See below for threads
that mention the limitations and issues with working with these semi-standard
services from ESRI.

http://mailman-viper.python-hosting.com/pipermail/users/2006-July/000103.html

http://openlayers.org/pipermail/users/2007-May/001571.html

http://www.mail-archive.com/users@openlayers.org/msg04240.html
- Little thread that I started a while ago to check on support for pure ESRI
services.