The Water Audit portion of the Federal Energy and Water Audit Report may be used to collect data to reflect a building’s water usage and recommendations for improvement. Input data fields for Utility Information and the guidance listed here were derived from Section 3.1.1 of the Water Evaluation Tools Handbook.

This form collects data on the water utility and costs. This information typically is not collected during the walk-through survey and will likely be provided from the facility manager or gathered from utility bills. It may be used to help estimate water and associated energy costs when evaluating a building for water-efficiency improvements.

Collect the following information:

  • Water utility provider
  • Marginal Water Rate (including units)
  • Sewer Utility Provider
  • Marginal Sewer Rate (including units)

The marginal rate is considered to be the amount a consumer would pay (or save) for a single unit of a delivered utility and does not take into account base charges that are not impacted by a change in use. For water, sewer, and liquid fuels, the marginal rate is generally the unit cost, in dollars, of 1,000 gallons (1 kgal) or 100 cubic feet of the delivered or treated commodity.