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BEAM P
LUS FOR
N
EW
B
UILDINGS
W
ATER
U
SE
(W
U
)
V
ERSION
1.2
W
U
4 W
ATER
R
ECYCLING
Copyright © 2012 BEAM Society Limited. All rights reserved.
Page 131
5
W
ATER
U
SE
5.1
W
ATER
C
ONSERVATION
W
U
4 W
ATER
R
ECYCLING
E
XCLUSIONS
None.
O
BJECTIVE
Encourage harvesting of rainwater and recycling of grey water in order to
reduce consumption of fresh water.
C
REDITS ATTAINABLE
2 + 1 BONUS
P
REREQUISITES
Compliance with the water quality standards appropriate to the use of the
recycled water.
C
REDIT REQUIREMENT
a) Harvested rainwater
1 credit for harvesting of rainwater which will lead to a reduction of 5% or
more in the consumption of fresh water.
b) Recycled water
1 credit where recycled grey water will lead to a reduction of 5% or more
in the consumption of fresh water.
c) A combination
1 BONUS credit where harvesting and/or recycling leads to a reduction
of 10% or more in the consumption of fresh water.
A
SSESSMENT
Harvested and/or recycled water shall satisfy the water quality
requirements for the intended reuse, e.g., cleaning, irrigation, use in heat
rejection systems, toilet flushing, etc.
a) Harvested rainwater
The Client shall provide a detailed report on the system or systems
installed for the purpose of harvesting rainwater, the details of the
expectations in respect of savings in the consumption of fresh water, and
shall demonstrate that the rainwater is of a quality appropriate to the end
use. Where it can be demonstrated that the expected savings in fresh
water use will be 5% or more based on baseline building estimation (see
Section W
U
P2), the credit shall be awarded.
b) Recycled water
The Client shall provide a detail report on the system or systems
installed for the purpose of recycling grey water, the details of the
expectations in respect of savings in the consumption of potable water
and shall demonstrate that the treated grey water is of a quality
appropriate to the end use. The condensed water shall be included in the
calculation of recycled grey water. Where it can be demonstrated that the
expected savings in fresh water use will be 5% or more based on
baseline building estimation (see Section W
U
P2), the credit shall be
awarded.
c) A combination
The Client shall provide a detailed report on the system or systems
installed for the purpose of harvesting rainwater and/ or recycling grey
water, the details of the expectations in respect of savings in the
consumption of potable water and shall demonstrate that the rainwater
and/ or treated grey water is of a quality appropriate to the end use.
Where it can be demonstrated that the expected savings in fresh water
use will be 10% or more based on baseline building estimation (see
Section W
U
P2), the credit shall be awarded.