Originally Posted by basil
The water rights question is a good one. But, tanker trucks probably can't take a significant amount of water. Those trucks probably aren't taking more than 5-10 cfs on average. 10 cfs will probably fill a tanker truck in 10-30 minutes.
Lets do some fuzzy math
Full size tanker truck = 7000 gallons
1 acre foot of water = 325,851 gallons
Let's be conservative and say an average of 20 (I'd bet it's closer to 30-40) trucks per day fill from the river that equals 140,000 gals per day.
Say they fill their trucks 350 days per year, that equals almost 50,000,000 gals of water per year.
That is 153 acre feet of water, or enough water to supply apx 765,000 average person user days or more than 2000 years worth of water for a single person. (Residential Water Use
) or approximately 3% of Boulder's residential water consumption for an entire year. (www.ci
I don't know about you but I think that is a lot of water. I just thought a little fuzzy math on water usage might be useful for water aware boaters.