-The hazardous Storage in C1 is located in Whitestone map, Tirnwood Valley, at 393,377. Go down the ladder, then walk to the end of the tunnel, then enter the cave to your right, then walk towards the SW of the next map. The exact location of the guy (Viorel) in Tirnwood Undergrounds is 25,157. Please remember there are Gargs and Hobgoblins in the area.
-In C2, the HazMat Storage is located in
The handy thing about Whitestone Hazardous Storage is that there's a lot of poo nearby, waiting for you to harvest. Dung is located at the back of the Tavern in Lakeside Village.