I don't get the math - $160K a year for some 65 million gallons?
The last time I checked my water bill I paid an incremental cost of about 0.6¢ per gallon for water and sewer. A little more than half was for the sewer, so let's say it's 0.25¢ per gallon for water alone. For 65 million gallons it would be $162,500. Pretty darn close to my retail price and I could probably get it cheaper if I negotiated for a bulk discount.