Seddon Atkinson Environmental Support Unit Cleveland's Seddon Atkinson in use as an Environmental Support Unit seen here with it's tarpaulins drawn back at Preston Park 2007. You can see the modular system of stowing it's equipment. Next to it is Stranton's new Volvo HAZMAT unit which replaced the Seddon.
The Seddon was also at Stranton, however I understand it is now at Thornaby workshops.
I also understand that it is indeed the only Seddon Atkinson in use as a Fire Appliance. Or at least I can't find any reference to it in the Fire Brigade Handbooks published by British Bus Publishing.(thats the two issued which covered the specials, and not the regular Fire Brigade Handbooks)
Picture added on 21 June 2009 at 10:01
Added by Stephen Kirkpatrick on 21 June 2009.