Is this a possible recurrence of the " srsName specified in wfs getfeature request ignored" (http://jira.codehaus.org/browse/GEOS-1304) bug?
This was the request to Geoserver (note: srsName="EPSG:900913"):
This was the response (note: srsName="http://www.opengis.net/gml/srs/epsg.xml#26713"):
604040.0625,4916379.5 604040.125,4916380
604040.12398009,4916379.5379597
Elsewhere in the code I'm working with, a getFeauture request is made with both a srsName attribute and a bounding box which also includes the same map projection information. The response to this request came with the correct srsName in the response.