Water has to be available either for sale or for free. I know the policy is to be self sustained, but many, many people don't have a camp or car. They get there by Internet rideshare, fly into Reno, hitchhike, get a ride with friends, etc... They can't be carrying 5 gallons of water.
You used to sell water for $1 a gallon It has been about 5 years since I have been and I guess now you have stopped. If you can sell ice (not nearly as a necessity as water) you can sell water. I saw a camp with a sign that said We Need Water.
It is not asking much to provide the basic basics for people. Dehydration is a major problem and the scarcity of water contributes. I asked at a Medic Station for a glass of water and was refused becuase they didn't have too much and what they had they needed for their patients. It is embarrassing to ask a camp for a quart of water.