Your water charges cover a period of one month instead of two, and bill payment is now due on the 10th monthly rather than bi-monthly.
The meter reading and the consumption history show approximately 30 days. However, depending on the read date, your new bill will typically reflect usage in a range of 28 to 32 days of service. (Note that during the transition to monthly billing, bills will likely include more or even fewer days than this range until the billing cycles and readings are entirely transitioned over to the 30-day billing period.)