Location of Dosh Necklaces on Spillway for the achievement "Money Down the Drain"
#1 - From the spawn turn right and head through a doorway. Turn left and look above the trader pod.
#2 - Turn right and continue through a doorway and up to sets of stairs. The necklace will be on the floor in the red corner between some barrels and a body.
#3 - Turn left and head towards the BIOCOLA machines. Turn left and walk between the railing and the power generators towards a dead-end. There will be a necklace on the wires behind the pillar.
#4 - Turn around and walk back towards the BIOCOLA machines and go through the door on the left. Walk past two more BIOCOLA machines on the right. The necklace is at the top of the wall that is adjacent to the stairs at the back of the room.
#5 - Turn left and continue walking until you descend a set of stairs. On your right will be some boxes behind a railing. The necklace is on the left side of this area behind one of the supports holing up the raisable floor.
#6 - To the immediate left of this area is another necklace hanging from the red supports against the wall.
#7 - Turn left and head down the doors and down a set of stairs. On your right will be two blue tanks labeled "Diesel Fuel". The necklace will be on the ground beside the tank on the right.
#8 - Turn around and you will face another set of stairs. Above the stairs will be two orange lights. A necklace will be on the wall below the light on the left.
#9 - Do not go up these stairs. Instead, turn right and walk to the end of the room towards the BIOCOLA Machines. A necklace will be on the floor beside the bench and wooden pallet resting against the blue container.
#10 - Turn left and walk up a set of stairs. Once at the top of the stairs turn left and walk beside the wall. The necklace will be infront of you hanging from a pillar just to your right beside a metal ladder.