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A Toxic Trail in Arc Raiders is a simple quest in Dam Battlegrounds that nonetheless can prove to be difficult if you're not sure what angle to approach it from. A Toxic Trail is all about trying to find a source of pollution from a toxic waste barrel and tracking it to its source, and while it's not hard to do once you've found the initial origin point for the quest, finding that first area of corrupted water can get tricky in a map as large and overgrown as Dam Battlegrounds. Having done it myself, I'll explain where to find the water intake and barrels in the swamp, so you can complete A Toxic Trail and get the rewards.
How to complete A Toxic Trail in Arc Raiders
A Toxic Trail in Arc Raiders will see you returning to the water intake at the Water Treatment building, and is basically a retread of the Source of Contamination mission you previously did for Celeste, with a few extra steps.
Here's what you need to do to complete Toxic Trails in full:
- Return to the water intake below the Water Treatment Control building
- Search the Swamp for traces of the barrel's origins
- Take a photo of the barrel truck
- Search the truck for clues about the saboteur's identity
The Water Treatment intake is on the the Dam Battlegrounds map, and actually called the Flood Spill Intake when you reach it in-game. You won't have to do anything this time when you get there, just go up to the barrel to trigger the next step.
Once you've found the barrel you'll then be tasked with searching the swamp to find where it came from. That's a slightly open ended objective so head here on the map, where you'll find a truck loaded with barrels in the river:
As you can see, it's not far that away but you could easily miss it if you went off in the wrong direction, or not recognise it's significance from a distance. When you reach the truck you'll have to take a picture of it and then search it, by interacting with the prompts around it.
Investigating the truck will finish the mission and get you the Space Port Warehouse key so make sure to put that in your safe pocket before you do anything else. That, as the description says, unlocks a door in the Shipping Warehouse in Spaceport, so keep it safe until you can pay that area a visit.
Once the truck is done that's the quest completed and you can head back to Shani to turn it in. In return you'll get the following rewards:
- Tactical Mk.2 Augment (x1)
- Zipline (x3)
- Pulse Mine (x3)
- Gas Mine (x3)
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