Update mid-April 2012:
I received a response from the Inyo Forest Supervisor acknowledging the appeal letter sent last October. The letter has a cooperative tone. The information I've requested is being gathered and he will finally read the Rocky Mountain NP Engineer's report I sent entitled, Performance Report on Backcountry Solar Toilets

He side stepped the NEPA legal issues, which is fine with me at this point, as long as they take a truly fresh look at this situation.