Falling damage is 1d6+1 per 10 feet fallen (round up), to a maximum of 10d6+10. If you're playing on the table-top, treat every 2“ as 10' for simplicity.
Snow: Particularly soft ground, such as deep snow, acts as a cushion. Every foot of soft snow reduces damage by one point.
Water: A fall into water reduces the number of dice rolled by half (rounded down), and an Agility roll means the character dives and takes no damage at all, though he is automatically Shaken if he dives from a height of greater than 50'. A fall over 15” (30 yards) requires an Agility roll at -2 to avoid damage.
Savage Worlds Deluxe Edition p. 101