The minimum charge is based on available flow capacity through the various size meters. Our smallest meter is a 5/8” x ¾” meter which delivers 20 gallons per minute (gpm). The fee established by the Public Service Commission (PSC) is based on the following formula for water: (Maximum recommended meter capacity (gpm) x $36.65 per month) / 20 gallons per minute (gpm) The sewer formula is: (Maximum recommended meter capacity (gpm) x $28.00 per month) / 20 gallons per minute (gpm) An example for a 1″ meter: (50 x $36.65) / 20 = $1,832.50 / 20 = $91.62(water)