WaterSense® Labeled Homes
Delivering on Efficiency in San Antonio, Texas
The U.S. Environmental Protection Agency (EPA)
established WaterSense to protect the future of
the nation's water supply and to promote water-
efficient products, homes, and programs with a
simple, easy-to-identify label. WaterSense
labeled homes allow families to enjoy the
comforts of home while using less water and
energy and saving money on utility bills.
To earn the WaterSense label, homes must
meet EPA's specification criteria: they must be
at least 30 percent more water-efficient than
typical new home construction, include
WaterSense labeled plumbing products, and be
free of water leaks. WaterSense labeled homes
can also include features such as: hot water
that gets to the tap faster; ENERGY STAR®
certified appliances; efficient irrigation
equipment; and water-smart landscapes that
minimize or eliminate the need for irrigation.
Benefits of WaterSense Certification
For Communities/Water Agencies:
•	Preserves the ability to add new housing and
grow communities while limiting impacts on
water and infrastructure resources.
•	Achieves greater water efficiency using a
whole-house, building-science approach and
system solutions that may not be possible
solely with efficient products.
•	Encourages builders to design homes with
water-efficient features in mind, maximizing
water savings at minimal incremental cost.
For Builders:
•	Mitigates the rising cost of water and utility
connection fees.
•	Leverages support from existing
communities and investors.
•	Offers advantages in the permitting and land
.... ... . . .. __ entitlement processes.
Why Water Efficiency Matters to
_	. .	. _ ,	• Supports corporate disclosures and
Communities and Builders	reporting
Recognizing the threat posed by drought and
water supply shortages, many areas of Texas,
including San Antonio, have historically been
proactive in pursuing water conservation and
efficiency. In the face of a growing population,
San Antonio has successfully reduced per
capita water use by half over the past 40 years.
However, the prevalence of drought conditions
in Texas will continue to present water supply
challenges. The figure on the next page shows
the drought status in Bexar County, Texas, between 2000 and 2023, with yellow denoting abnormally
dry conditions and darker colors indicating even greater drought intensity. Over the same period,
Bexar County's population increased by 47 percent, representing an additional 660,000 residents.
San Antonio and other areas affected by frequent droughts need to plan communities wisely so as
not to overstress water supplies.
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WaterSense labeled homes can help preserve the ability to add housing in communities that are
water- or infrastructure-constrained by minimizing the impact of new construction on water
resources. Simultaneously, they can also mitigate the impact of rising costs of water and connection
fees.
100.00%
80.00%
60.00%
40.00%
20.00%
0.00%
MNJNJNJNJNJNJNJNJNJNJNJKJNJNJNJNJKJNJNJNJNJNJNJ
OOOOOOOOOOOOOOOOOOOOOOOO
0000000000-*—»—»—»NJNJNJNJ
O—»NJU»4^UlON^JOOvOO—'NJOJ^LnON^IOOVOO—
DO (Abnormally Dry) D1 (Moderate Drought) D2 (Severe Drought) D3 (Extreme Drought)	D4 (Exceptional Drought)
Source: U.S. Drought Monitor (https://drought.monitor.unl.edu/)
Why Choose WaterSense Labeled Homes
The WaterSense label for homes provides a whole-house approach to water efficiency. The programs
that certify homes through WaterSense address specific climate and market conditions by
encouraging system and design improvements in addition to efficient products and appliances. This
approach helps maximize savings and reduce costs for the builder, the homeowner, and the
community.
WaterSense labeled homes can achieve significantly more savings than homes with WaterSense
labeled plumbing products alone. Plus, WaterSense labeled homes carry the additional benefit of
being independently certified to ensure they are free of leaks and that products and systems are
properly installed to maximize savings.
Maximizing Water Savings With WaterSense Labeled Homes
The table on the next page illustrates the features that may be included under four scenarios in San
Antonio. This example uses a typical 2,400-square-foot home with an average-sized household (2.61
occupants) on a 10,000-square-foot lot that includes 5,826 square feet of conventional, irrigated turf
(unless otherwise specified). Assumptions for a typical home are based on national averages.
The baseline home includes products meeting federal efficiency standards and other features
typical of new construction. The home following the Mandatory Checklist for WaterSense
Labeled Homes includes WaterSense labeled toilets, faucets, and showerheads, but no additional
water-efficient features. The home meeting Texas standards is required to meet product efficiency
criteria for toilets and install a rain sensor. Finally, the example WaterSense labeled home
incorporates a variety of water-efficient indoor and outdoor features that meet the water efficiency
requirement for WaterSense labeled homes and result in substantially more water savings.
This is just one example of a home that has earned the WaterSense label—other design
configurations could also meet the requirement. The example shows that improvements limited to
2
Bexar County (TX) Percent Area in U.S. Drought Monitor Categories

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indoor water efficiency will not be sufficient to achieve the 30 percent threshold. The home will
generally need to focus on maximizing outdoor water savings (e.g., improving irrigation control,
reducing turf, and using non-irrigated or natural areas to reduce irrigable landscape area) to ensure it
is at least 30 percent more water-efficient than typical new construction.
Feature
Baseline Home
Home Meeting
WaterSense
Mandatory
Checklist
Home Meeting
Texas Appliance
Efficiency
Standards
Example WaterSense
Labeled Home in San
Antonio*
Toilets
1.6 gpf
1.28 gpf
1.28 gpf
1.28 gpf
Showerheads
2.5 gpm
2.0 gpm
2.5 gpm
2.0 gpm
Lavatory Faucets
2.2 gpm
1.5 gpm
2.2 gpm
1.5 gpm
Kitchen Faucets
2.2 gpm
2.2 gpm
2.2 gpm
1.8 gpm
Dishwashers
5.0 gpc
5.0 gpc
5.0 gpc
3.5 gpc
(ENERGY STAR)
Clothes Washers
6.5 IWF
6.5 IWF
6.5 IWF
4.3 IWF
(ENERGY STAR)
Hot Water
Delivery
Standard
Standard
Standard
More efficient hot water
delivery
Landscape and
Irrigation
Turf irrigated
with standard
fixed spray
sprinklers and
timer-based
controller
Turf irrigated with
standard fixed spray
sprinklers and
timer-based
controller
Turf irrigated with
standard fixed spray
sprinklers, timer-
based controller,
and rain sensor
20% less irrigable
landscape; 10% of
remaining landscape is
non-turf design with
pressure-compensating
drip irrigation; turf irrigated
with WaterSense labeled
spray sprinkler bodies;
WaterSense labeled
irrigation controller; rain
sensor
Total Estimated
Annual Water Use
177,000 gallons
158,000 gallons
156,000 gallons
<124,000 gallons
Total Estimated
Annual Water
and Percent
Savings From
Baseline
0 gallons
0% savings
19,000 gallons
5 to 16% savings
21,000 gallons
3 to 20% savings
>53,000 gallons
>30% savings
Feature meets federal
standard or common
construction practices
Feature meets
WaterSense or
ENERGY STAR criteria
Feature achieves greater efficiency
level than WaterSense product
specification criteria
gpf = gallons per flush; gpm = gallons per minute; gpc = gallons per cycle; IWF = integrated water factor
* For example purposes only. Home could qualify with a different combination of features, and a different home
with these features is not guaranteed to achieve WaterSense certification.
Learn More
Interested in learning more about WaterSense and how it can benefit your community? Visit
www.epa.gov/watersense.
EDA EPA-832-F-23-002H
PHONE (866) WTR-SENS (987-7367) WEBSITEwww.epa.gov/watersense EMAILwatersense@epa.gov	July 2023
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