Sienar Refinery
this was the name given to the immense refinery and reclamation facility established on Raxus Prime by Sienar Fleet Systems, during the last decades of the Old Republic. Note that the Star Wars Databank provides the Sienar Fleet Systems reference, placing its formation from the old Republic Sienar Systems many years before the institution of the New Order. Scientists at the Sienar Refinery discovered that the sewers of Raxus Prime were constructed to help sweep away waste many thousands of years before the Battle of Geonosis, indicating that the planet had been a toxic wasteland for many generations.