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Facsheet Water Use
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Transcript of Facsheet Water Use
WATER USE from fibre to fashion
This factsheet informs you about the reduction of water-use and provides
you with concrete actions for less water consuming cotton and better
water efficiency in the wet-processing stages. Another factsheet deals
with waste water treatment issues.
Cotton and Wool
Man-made fibres
Recycled fibres
Energy use
Water use
Waste water
(available soon)
Chemicals use
Index: Factsheet
The textile case
The environment
issue
The supply chain
approach
Product design and
fabric selection
Choose suppliers with a
credible certificate
Check supplier’s policy
and performance
Work with suppliers on
improvements
Inform the consumer
Get informed, aware,
inspired and challenged
CSR Factsheet
THE TEXTILE CASE Throughout the production of textiles most water is used for cotton cultivation
(2/3 or more of the total volume). Consumers use a lot of water to wash their
clothes (up to 1/3). Textile processing uses far less water but causes most water
pollution. This puts great pressure on the availability and the quality of water in
areas where cultivation and processing takes place.
This means that the choice for cotton fibre highly dominates the total
water-footprint of a piece of garment (see next page). It also means that a
significant part of the water-footprint can only be influenced by the consumer in
the use phase. Water use in the wet processing also deserves serious attention,
because of the local pollution impact. See also waste water treatment factsheet,
available soon,
Planet
Provided by:
Water use impacts (blue spheres) in the ‘fibre-to-fashion’ chain
P a g i n a 2 | C S R P l a n e t F a c t s h e e t | W A T E R U S E
The water footprint of a product (goods or services)
is the total amount of fresh water that is used to
produce this product. This includes water use in the
various steps of the production chain.
The water footprint also links the amount of water
used with data on water availability. It makes a
difference whether there is enough rainfall or river
flow, or whether there is limited water in lakes or
underground.
What can you do?
Designers and product managers:
At least be aware of the cotton water footprint.
Maybe, you can consider non-cotton alternatives for the fabric (see also factsheet Man-made fibres).
You make the basic decisions. These decisions on specific requirements (look, feel, colour, print) for fabric and
final garment are mainly realised by wet-processing treatments (bleaching, dying, washing and finishing). Be
aware of the impact these processes have on water use and pollution.
Start a dialogue with your suppliers on efficient water use (via sourcers and supply chain managers). Don't let the
fact that there are no general rules on water use available stop you.
Sourcers and supply chain managers
You select suppliers of fabric (and yarn) and this is where you can make an impact. Be aware of the water-use in
the wet processing stages and evaluate/review the specific production situation at supplier factories.
Cotton fabric buyers
You can look for suppliers offering (certified) cotton fabric from water-efficient cotton cultivation and textile mills.
Levi Strauss & Co. states:
How much water is associated with the production,
use and disposal of a pair of Levi’s®? About 3500
liters. That’s a lot of water for one pair of pants –
but it includes the water associated with growing the
cotton, manufacturing the jeans, bringing them to
market and consumer care and disposal. When you
take 3500 liters for just one pair of Levi’s® and
multiply that times the millions of jeans we make a
year, you understand why we are so committed to
playing a leadership role on issues associated with
water.
(CEO Water Mandate Communication on Progress, Levi
Strauss & Co., September 22, 2009)
THE ENVIRONMENT ISSUE Water is very abundant on earth, it covers more than 2/3 of our planet. But only up to 2.5% of the total volume is fresh water. Of the fresh water most is locked in icecaps, which leaves less than 1% of all water on the world readily available for all the demands of all species and mankind. Availability of clean, fresh water is seen as the next greatest global problem after climate change. Many of the larger brands in the textile industry have
already identified water use as one of the key
environmental issues that needs to be covered. An
example is included in the box.
The problem of water scarcity is very specific to
regions and locations. The use of irrigation water
should pose no serious problem in rain rich Brazil
with its water abundant river deltas.
But it already caused major problems in the Aral
lake region (Uzbekistan and Kazakhstan) where
the water level has dropped 20 meters since 1960,
primarily as a result of inefficient irrigation for too
large scale cotton farming.
THE SUPPLY CHAIN APPROACH Since cotton is so often our fibre of choice, this
means a high need for irrigation water. This does
not mean that we should skip cotton – although a
man-made or synthetic fibre is a less water con-
suming alternative. But we should certainly work
on a lower water footprint for cotton. This can be
done by choosing rain-fed cotton or cotton that is
cultivated with improved irrigation techniques,
certainly in regions where water is scarce.
Further in the production chain, large quantities of
water are required to dissolve chemicals that are
used in the wet processing stages and to wash
and rinse those chemicals to prepare the yarn or
fabric for the next step (see box).
This map illustrates the ratio of water withdrawal to fresh water availability at river basin level.
As you can see, most of the cotton production (60-70%) takes place in red (alert) marked water
basins. North China and western USA, India, Pakistan, Uzbekistan and Turkey all are under fresh
water stress. Click here.
Growing cotton: 8,000 – 40,000 liters/kg cotton
So the fibre/fabric choice is important!
Finishing: up to 700 litres of freshwater/ kg
textile
Wastewater from production :up to 600 litres/ kg
textile
So the wet processing stage is also important!
Certainly for synthetic fibres and for the chemical
pollution in the waste water. See waste water
treatment factsheet, available soon.
Source: Bluesign Technologies, AFIRM RSL seminar
presentation (sept. 2007)
P a g i n a 3 | C S R P l a n e t F a c t s h e e t | W A T E R U S E
WHAT TO FOCUS ON AND HOW TO
IMPROVE? There are three ways of managing water use
reduction:
A. Product design and fabric selection
B. Screening, selecting and working with
suppliers
C. Informing the consumer
A. Product design and fabric selection You can adjust the design of a product and select
fabrics in such a way that the impacts of water use
are minimised. Unfortunately it is not possible to
give specific directions which are generally valid for
‘water-efficient’ designs. The very general rule is:
Cotton is the most water consuming fibre and
The more specific fabric properties -> the more
wet-treatment steps are needed -> the more water
consumption and pollution.
Organic cotton is not specifically more water
efficient. But there are several more water-efficient
certified cotton fibres (fabric) readily available
(however not yet by large share of the total cotton
supply).
BMP Cotton
The Better Management Practices Cotton from
Australia claims and certifies that the cotton is
grown three times more water-efficient than the
global average. You can purchase BMP-cotton at
several registered Australia-based and
internationally operating cotton suppliers.
Cleaner Cotton
The Californian Sustainable Cotton Project
developed Cleaner Cotton. Their cultivation
method is claimed to use 15% less water than the
conventional method. The website lists some
suppliers of fiber, yarn and fabric.
BCI (Better Cotton Initiative)
This initiative focuses on better management
practices in cotton cultivation. It aims at
optimization of water use and reducing adverse
effects on groundwater and water basins (lakes,
rivers). The first crops will be harvested Autumn
2010 and will become increasingly available over
the coming years. Members of the BCI include
producers, retailers (H&M, IKEA, Marks &
Spencer, etc.) and brands (Adidas, Levi
Strauss & Co , Nike, etc.)
What can you do?
Look and ask for certified cotton. Organic Exchange certified cotton may also be more water-efficient, but
ask for water-use specifics f.e. rain-fed cotton.
B. Screening, selecting and working with
suppliers The second way to manage the water footprint of a
product is to include performance on water use in the
screening and selection of suppliers and to work with
them to improve their performance. There are
basically three ways to do this:
1. Choose suppliers with a credible certificate.
2. Check supplier’s policy and performance.
3. Work with suppliers on improvements
B1. Choose suppliers with a credible certificate Although there are no certificates in the textiles sector
that focus specifically on water use, there are certain
textile standards that include requirements relevant to
a responsible water use.
Oeko-Tex Standard 1000 and 100plus
The Oeko-Tex Standard 1000 focuses on
environmental-friendly textile processing. On water
use the standard requires a thrifty as possible use
without posing specific requirements yet. Oeko-Tex
100plus is a product label combining the 100 and
1000 standard throughout the whole production
chain. The website provides information on
certified suppliers.
P a g i n a 4 | C S R P l a n e t F a c t s h e e t | W A T E R U S E
GOTS (Global Organic Textile Standard)
The GOTS standard requires documentation of
staff training in the conservation of water in the
processing plant and record keeping of water
consumption by wet processing units.
Bluesign
Addresses the water use issue through the
resource efficiency pillar of the standard, no
specific water use requirements are set. Bluesign
requires eliminating problematic chemicals in
production [see chemicals factsheet] and operating
an adequate wastewater treatment system. See
wastewater treatment factsheet, available soon.
What can you do?
Begin with checking if your suppliers
are certified or plan to work on it. In
sourcing and buying, keep a keen eye for
suppliers that are already certified by one
of the above certificates
B2. Check supplier’s policy and performance Currently, claims on ‘water use’ are not common
among suppliers in the textile supply chain.
However it is expected that suppliers increasingly
will give you information on their policy,
performance and specific product claims on
reduced water use. Independent information might
be most reliable but “who is the sender”?! You can
always consult a MODINT CSR manager on their
opinion.
What can you do?
Check the suppliers sustainability report and/or ask relevant questions:
Does the supplier have a policy on water use?
Is this policy translated into specific targets on water use?
Is water consumption monitored and reported?
Ask for specific information about water use and consumption, reduction and specific measures. It is important
that this information can be considered reliable (‘no easy way-out on serious questions’!).
Verify the answers to these questions, preferably through:
a signed water or environmental policy – preferably part of an environmental management system (ISO-14001)
a verified CSR report including specific water-consumption data.
P a g i n a 5 | C S R P l a n e t F a c t s h e e t | W A T E R U S E
Presently two interesting management initiatives
on water protection are also specifically active in
the textile supply chain. Such initiatives and the
information and tools they provide can help you
shape your water management throughout your
supply chain.
CEO Water Mandate
The CEO Water Mandate is a public-private
initiative designed to engage companies in the
development of sustainable public water
policies and implementation and disclosure
practices. Participation is combined with the
membership of the UN Global Compact.
Signatories to the CEO Water Mandate include
H&M, Levi Strauss & Co and Nike.
The Sustainable Water Group
In this working group of the BSR (Business for
Social Responsibility) several textile brands
(Gap, Levi’s, Nike, Nordstrom and Timberland)
work together on standards for waste water
quality including the efficient use of water.
Special focus is on decreasing water-risks in
China-based textile supply chain.
What can you do?
You can either join an initiative yourself or work with suppliers that joined one of these initiatives.
B3. Work with suppliers on improvements Apart from a screening and selection of suppliers
based on their water use, your company can also
actively work with suppliers to map and minimize
water use. Of course this also goes for the
company’s own operations (show a good example,
‘walk the talk’).
Public available tools to get practical insight in the
water use and scarcity in your supply chain are:
Global Water Tool (WBCSD, World Business
Council for Sustainable Development)
The tool maps water use in the supply chain and
links water use with data on water scarcity by:
- Comparing your company’s water uses
(including supply chain) with water availability
information, on a country and watershed basis.
- Calculating water consumption & efficiency.
- Indicating relative water risks in your
company’s portfolio.
- Creating key water reporting indicators (GRI)
and geographic mapping.
- Enabling effective communication on water
issues.
Water Footprint network
A tool which is currently in development is the
‘water footprint’ tool. A tool for businesses will
become available. For now you can download
a report on cotton production and water use
including data on water scarcity in different
countries from the website.
What can you do?
Explore the above tools to get insight and start to manage water use.
P a g i n a 6 | C S R P l a n e t F a c t s h e e t | W A T E R U S E
The performance of textile mills on reduced water
use are finally depending on concrete technical
improvement measures.
Generally applicable
- Pipes, valves, pumps and fuses in good order
and not leaking;
- Cooling water switched-off when not necessary;
- Overflow protection for vessels.
More advanced
- Counter-current washing in-between processing
stages, saves up to 75% rinsing water;
- Automated water flow dosing systems for fully
controlled water use;
Best practices
- Water reuse systems
- Specific low water use technology like low liquor
ratio dyeing
Technical measures need careful consideration
on investment and cost saving. They are usually
only financially feasible when the use of fresh
water is charged appropriately. And of course
measures are needed in case of water scarcity
risks or actual deliverance insecurity.
What can you do?
Ask after and look for the generally applicable measures during a processing plant visit. They can be visually
checked.
Make the more advanced measures a point of review and discussion if there’s a solid longer term and direct
relation with a textile processor.
You can regard best practice measures as a recommendation on the environmental and processing quality of a
supplier.
Finally you might include the availability of measures in the selection process of suppliers.
C. Inform the consumer The third way to manage your water footprint is to
raise awareness with consumers on water lean
washing. This step is an important one, because
the amount of water used for the washing of
garments by the user accounts for up to 1/3 of the
total water use in the total life cycle of textile.
What can you do?
Inform consumers of the need to use full machines and modern water efficient washing machines.
Inform them of the need to carefully consider whether washing is really necessary, without compromising
hygiene.
Inform the consumer on the use of a lower washing temperature (usually the max. allowable temperature is
indicated).
Promote line drying. Click here.
P a g i n a 7 | C S R P l a n e t F a c t s h e e t | W A T E R U S E
… GET INFORMED, AWARE, INSPIRED AND CHALLENGED!
Designers/ Product managers
leave room in your design for low water-use choices in fibre, fabric and processing
Buyers/ Sourcers/Product managers
explore and purchase water-efficient/ low water footprint fabrics/garments
aim on certified and other initiatives
CSR and Supply chain managers
select suppliers or discuss with suppliers on water use reduction
work with initiatives, tools and on specific measures
aim on certification or co-operation with initiatives
Management
structural water efficiency policy, management and best practices
preferably together with your most relevant suppliers
training and informing employees
putting targets (priority) and providing means (budget)
P a g i n a 8 | C S R P l a n e t F a c t s h e e t | W A T E R U S E
This series of factsheets is produced by MODINT and CREM in co-operation with VGT, CBW-MITEX, MADE-BY and Solidaridad,
supported by VROM and AgentschapNL. – version: October 2010
The information in this factsheet is composed with utmost care based on public available information. Any liability cannot be
claimed on the composers. The information is a selection of the most relevant according the composers. This is a first public
version of the factsheet series, all users are invited to give comments and suggestions for improvements via [email protected] .
You can indicate yourself as user also via [email protected] (subject: factsheet user) in order to get a notification when a new
version of factsheets is available.