American Water,  rate in 2025,   bill is calculated per unit. Each billing unit has 100Gallon

Examples:

4bed home use 3500gallon of water.   Then its has 35billing unit (3500G/100).  Est total cost is $157.50/mo

3bed home use 3000 gallon of water.  Then it has 30 billing unit. Est total cost is $135/mo

2 bed home use 2500 gallon of water. Then it has 25 billing unit.  Est total cost is $112.50

1bed home use 1800 gallon of water.  Then it has 17 billing unit.  Est total cost is $81