Martha Rastello

 is a member of the Water Merchants in 2161.

Background
The Master Water Merchant is apparently the administrative head of the water merchants in The Hub.

Interactions with the player character
She will tell the Vault Dweller that there is a water chip in Necropolis. Also, if you are running out of time to retrieve the water chip, for 2000 caps she will commission a caravan of water merchants to deliver water to Vault 13.

Appearances
appears in the original Fallout.