AQ Reharvested. Test Result for WMS services

http://webapps.datafed.net/CALPuff.ogc?SERVICE=wms&REQUEST=GetCapabilities&VERSION=1.1.1

seems to advertize WMS 1.1.1, but it doesn’t respond properly in ArcMap. Only when I use WMS 1.3.0 does it come back with layer. But then when drawing the service, I get the below error:

One or more layers failed to draw:

CALPuff DataFed Web Map Server 1.3.0: WMS service exceptions:-Service Error Code:MissingParameterValue
Service Error Description: Missing SRS.
-Service Error Code:MissingParameterValue
-Service Error Code:MissingParameterValue

Taking another look at the capabilities response explains why this is happening: the Layer elements are missing the SRS element that declares the spatial reference system for the layer. See clause 7.1.4.5.5 of the WMS 1.1.1 spec (OGC 01-068r3 = my printed version).

The Airnow_WMS service has the same issue. It is registered as WMS 1.0.0, is that correct?