How is the residential sewer bill calculated?
Because it is not cost-efficient to meter wastewater use, the City of Irving uses an averaging technique to bill for wastewater services. We average your water consumption in winter months (January, February and March) and then apply that average to the wastewater rates. This is considered to be the best time to measure wastewater, as most customers irrigate less in these months, thus most water consumption is sent to the wastewater collection system after use.
Because it is not cost effective to meter wastewater use, Charleston Water System bases your sewer bill on your water consumption. Your rates for your sewer bill will depend on your sewer district. If you are a Charleston Water System sewer customer you are billed at 95% of your water usage, provided you are not a commercial customer or have an irrigation system.
Because it is not cost-efficient to meter wastewater use, the City of Irving uses an averaging technique to bill for wastewater services. We average your water consumption in winter months (January, February and March as reflected in the bills received by customers for the months of February, March and April) and then apply that average to the wastewater rates. This is considered to be the best time to measure wastewater, as most customers irrigate less in these months, thus most water consumption is sent to the wastewater collection system after use.
