In the evolving world of ARC Raiders, Celeste tasks players with a critical environmental investigation. Suspicious that Speranza's water supply has been compromised, she dispatches Raiders to the Dam Battlegrounds to uncover the truth. The "Source of the Contamination" quest is your mission to identify and investigate the root of this pollution.This guide provides a detailed, step-by-step walkthrough to help you efficiently locate the Water Treatment building and find the elusive Flood Spill Intake near the swamp, ensuring a quick and successful mission.
Why the Source of the Contamination Quest is Ideal for New Players
The Dam Battlegrounds map is widely considered the most beginner-friendly location in ARC Raiders. Its layout is relatively straightforward, and the quest objectives are conveniently located. A significant advantage for players focusing on this mission is the player-versus-player (PvP) dynamic. Most combat-oriented Raiders are drawn to the high-value conflict zones like the Research and Administration areas, often leaving the quest-specific locations quieter and less contested.This makes the Source of the Contamination quest a perfect low-risk operation to familiarize yourself with the game's mechanics and map flow without constant threat from hostile players.
Step 1: Locating the Water Treatment Building
Your mission begins with a directive to reach the Water Treatment building within the Dam complex. Instead of heading towards the central, often chaotic areas, your path leads you north.
- Your Objective: Navigate to the forested region directly north of the Water Treatment Control area.
- How to Get There: From your spawn point, move towards the Dam and skirt around the mainstructures, keeping the water on your left (or right, depending on yourentry point) as you make your way upwards into the elevated woodland.The game will provide an on-screen notification once you havesuccessfully entered the correct investigation zone.
Upon reaching this area, you will instantly complete the first objective.The quest log will then update, revealing your next task: to search forthe Flood Spill Intake near the swamp.
Step 2: Finding the Flood Spill Intake Near the Swamp
The second and final phase of the quest requires a keen eye. You are now looking for the specific source of the contamination.
- Where to Look: The objective is pinpointed at the far end of the swampy area. You will need to move through the damp, murky terrain to locate it.
- What to Find: Your target is a damaged and leaking barrel, spewing a hazardous-looking substance into the environment. This is the Flood Spill Intake you've been sent to find.
Simply approach the broken barrel and press the interact key. This singleaction will simultaneously complete both remaining objectives:
- Search for the Flood Spill Intake near the Swamp.
- Investigate any suspicious objects.
Mission Complete and Strategic Tips
One of the best features of this particular quest is that it requires noitem extraction. You do not need to collect a sample or secure anyobject to bring back to Speranza. This allows you to embark on the raidwith a "free loadout," risking none of your valuable equipment.
Pro-Tip: Treat this as a classic "in-and-out" mission. Spawn in, navigatedirectly to the forest north of the Water Treatment building, proceed to the swamp to investigate the barrel, and you're done. This efficientapproach minimizes your time in the field and maximizes yourreward-for-effort ratio.
With this guide, you are now equipped to tackle Celeste's investigation with confidence. Suit up, Raider, and uncover the source threateningSperanza's water.
Platform(s): PlayStation 5 PS5, Windows PC, Xbox Series X/S
Genre(s): Third-person shooter
Developer(s): Embark Studios
Publisher(s): Embark Studios
Release date: October 30, 2025
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