Water Management Planning
documenting and tracking water use information for each meter using ENERGY
STAR’s Portfolio Manager.
Identify sources of unmetered water use.
Work with operation and maintenance personnel to identify all submetered
fixtures, equipment, systems, and processes. If available, obtain copies of internal
log books or electronic records of submetered water use.
Gathering and Reviewing Water Bills to
Understand Use and Cost
Collecting at least two years of water
and sewer use data for the most recent
timeframe possible for each identified
source will help facility owners and
managers better understand how much
their facility’s water use costs. These
data can include records or logs from
source water meters and/or utility water
bills. If bills are delivered to and paid off
site, be sure to receive copies for track-
ing and evaluating costs. In addition,
consider the following:
Water bills usually contain several separate charges, which vary by utility. Figure
provides an example bill with the charges specifically labeled. Water manag-
ers should contact the utility to clarify any questions before using the informa-
tion to evaluate potential water use reductions and any associated cost savings.
With this information, the water management team can prioritize water-saving
In addition to gathering data for metered sources, gather information necessary
to estimate annual water use for any unmetered sources of water, such as well
water or other source water brought on site. For example, water use may be esti-
mated based on source water pumping rates or the consumption of the end uses
supplied by the source.
EPA and DOE’s ENERGY STAR. Portfolio Manager Overview.