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This is an overview article which contains background information and cross-game comparisons. For game-specific information and stats, see the articles linked on the right.
Gameplay articles
Fallout 3Dirty water
Purified water
Aqua Pura Gametitle-FO3 BS
Aqua Cura Gametitle-FO3 BS
Holy water Gametitle-FO3 BS
Fallout: New VegasDirty water
Purified water
Irradiated water
Mass purified water
Rushing water Gametitle-FNV LR
Fallout 4Aqua Pura Gametitle-FO4 CC
Dirty water
Drugged water
Institute bottled water
Purified water
Fallout 76Dirty water
Boiled water
Purified water
Toxic water
Fallout: The Board GameWater
Purified water Gametitle-FBGNC
Gametitle-FO3Gametitle-FO3 BSGametitle-FNVGametitle-FO4Gametitle-FO76Gametitle-FBG
Gametitle-FO3Gametitle-FO3 BSGametitle-FNVGametitle-FO4Gametitle-FO76Gametitle-FBGGametitle-FBGNC
You're thirsty, aren't you America? Not for knowledge or power, no. I'm not speaking metaphorically. You're thirsty for clean, fresh water. Hmm? Water is the foundation of life. But here, in the Capital Wasteland, indeed the entire country, water is polluted. Irradiated. Deadly.— John Henry Eden

Water is a consumable item in Fallout 3, Fallout: New Vegas, Fallout 4, Fallout 76 and Fallout: The Board Game.


Dirty waterEdit

FO3 dirty water

Dirty water is the most common type of water found in the wasteland. It is drawn from the tainted lakes, rivers, and puddles. Unlike purified water, this will give radiation, which can be cured for a fee by a doctor or through RadAway.

Purified waterEdit

Fo4 purified water

Purified water is water that has been purged of any radiation, making it one of the only "clean" sources of water in the wasteland. It is not quite as common in the Capital Wasteland as it is in the Mojave and the Commonwealth, but the water is still rather common, often being found in first aid kits and more advanced settlements.

Aqua PuraEdit

FO3BS aqua pura
Gameplay article: Broken Steel

Aqua Pura is purified water that has been bottled from the water being taken in from the Tidal Basin and purified at Project Purity.

Aqua CuraEdit

FO3 dirty water
Gameplay article: Broken Steel

Aqua Cura is regular irradiated water disguised in an Aqua Cura bottle that Griffon sells in Underworld to cure a plethora of illnesses that ghouls often suffer from. Griffon also takes the real Aqua Pura and sells it to other wastelanders at an inflated price.

Cactus waterEdit

FO3 purified water

Cactus water is the name of a recipe in Fallout: New Vegas which allows purified water to be crafted by the Courier:

Creation requirements

Icon range
Icon level

Irradiated waterEdit

FO3 dirty water
Gameplay article: Fallout: New Vegas

Irradiated water is a variant of dirty water in Fallout: New Vegas. It has been even exposed to stronger levels of irradiation and thus it irradiates the drinker three times as much as dirty water. A limited amount of bottles can be found and they are mostly located in highly irradiated areas.

Boiled waterEdit

Fo4 dirty water
Gameplay article: Fallout 76

Boiled water is a craftable water in Fallout 76.


  • In Fallout 3 and Fallout: New Vegas, drinking from standing water such as lakes, rivers and puddles, can restore between 2 and 30 HP.
  • In Fallout 4, drinking such water will restore some HP as well as increase the irradiation level of the player character.

Behind the scenesEdit

Each bottle of purified water appears to feature the text "'H²O" hand written on the label on the side of the bottle. This format is incorrect (at least according to IUPAC nomenclature) as in chemical formula numbers are written in subscript, not superscript. If read literally, the chemical formula H²O would mean there is one hydrogen and one oxygen isotope that contains two neutrons (instead of the standard eight). This would leave the oxygen extremely unstable and radioactive with a half life that would be so small that it would not be measurable.

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