 On 1 January 1991 , Sarnia and the neighbouring town of Clearwater were amalgamated as the new city of Sarnia @-@ Clearwater . The amalgamation was originally slated to include the village of Point Edward , although that village 's residents resisted and were eventually permitted to remain independent of the city . On 1 January 1992 , the city reverted to the name Sarnia . 
