You are responsible for paying your bill every month whether it’s based on an actual meter reading or an estimate. The Department of Water Management has more than 95,000 customers. With that many meters to read, a small number each month may have issues. Rather than hold the bill for the next cycle, we send an estimated bill until the issue is resolved. This way, your estimated bill reflects your normal usage and you are not caught off-guard the following month with a double bill.