The following charts show that the revenue per capita is increasing. The trending analysis also suggests that utilities are attempting to keep operations and maintenance (O&M) costs in check, which further suggests that the increasing total revenue is presumably to cover rising capital costs. The overall nationwide observance of the decline in per capita consumption may be the explanation behind the slight decline in O&M costs. Less water usage would lead to less chemical and energy costs as well as less supply costs for those utilities that secure a portion of their water supply through purchased water.
