Thats alot of gals per month for 25 units! Luckily the dollar cost looks low. 2200-2400 gals per couple per month not uncommon. Always a ton of waste if not metered and billed.
Nation wide, average water consumption is 1500 to 2000 gallons per occupant per month.
After sub metering the average is closer to 1200 to 1500 gallons per occupant per month.
Your recent water bill reflects 4 to 5 occupants per home, or more likely water leaks (i.e. Toilets)
Thanks for the response Dan! Do you operate in NM? Please feel free to reach out to me at iyer_satish_r@yahoo.com. My phones are 402-440-6606 or 614-578-1277