|Building Type||Bonus Decor|
|Limit per Building||1 Irrigation|
|Size||4 x 4|
|Reward for Raiding||None|
|Reward for Occupation||None|
- "Hey! How many times do I have to tell you: this is a reservoir to hold water for your populace. THIS IS NOT A SWIMMING POOL! Now take that net and start cleaning before some poor trooper starts drinking your..."
- — In-game Description
The Earthen Reservoir is a bonus decoration giving a +10% bonus to nearby Agriculture.