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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 Broken SteelGametitle-FO3 BS
Aqua Cura Broken SteelGametitle-FO3 BS
Holy water Broken SteelGametitle-FO3 BS
Fallout: New VegasDirty water
Purified water
Irradiated water
Mass purified water
Rushing water Lonesome Road (add-on)Gametitle-FNV LR
Fallout 4Dirty water
Drugged water
Institute bottled water
Purified water
Gametitle-FO3Gametitle-FO3 BSGametitle-FNVGametitle-FO4
Gametitle-FO3Gametitle-FO3 BSGametitle-FNVGametitle-FO4

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 and in Fallout 4.


Dirty waterEdit

FO3 dirty water

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

Purified waterEdit

FO3 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, 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

rangeIcon range
levelIcon level


Standing water (Fallout 3 and Fallout: New Vegas) such as lakes, rivers and puddles, can restore between 2 and 30 HP.

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.