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Posted on: May 5, 2023

We have a fresh new committee!

Welcome Sarah Belton from Nutrient Neutral and Dan Roberts from the Wildfowl and Wetlands Trust!  Congratulations to Matt Simpson (35 percent), Gaby Dotro (Cranfield University), Lucy Crockford (Harper Adams University) who were re-elected.   

Thanks to all the candidates for your willingness to help …

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Posted on: Jan. 19, 2023

Have you aeen the Constructed Wetland Hub we deveoped with the Rivers Trust?  

Lots of great resources, information and data for Constructed Wetland Projects... check it out!

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Posted on: March 14, 2022

Congratulations to Andy Freeman, Cat Mcilwraith and John Williams who are re-wlwcted onto the CWA Committee.  Thanks to all the candidates for supporting the CWA, your offer of halp is appreciated!

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Posted on: Feb. 16, 2022

Bios of the candidates for the 2022 Committee elections are listed here .... a poll wll be sent to all current members later this week.  Happy voting :)

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Posted on: March 16, 2021

The voting is now open.

Further information on the candidates can be found here

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Posted on: Feb. 24, 2021

Email us a short bio if you would like to join the CWA committee.

Voting (members only) will open shortly. Further info to follow...

Become a CWA member

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Posted on: Feb. 24, 2021

Email us if you would like to work alongside committee members on one of our working groups. CWA working groups run much of the CWA's work - conference organisation, developing design standards and industry guidance, the UK wetland professional's accreditation scheme, communications, marketing and much more.


Become …

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Posted on: Nov. 16, 2020

At the recent AGM, the CWA decided to update its constitution to ensure that members of the committee and the officers would sit for a total of 2 years only before the post comes up for re-election.


All CWA members who have not previously held a post are warmly …

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Posted on: Oct. 19, 2020

To all students studying wetland sciences - come and join our networking and mentoring sessions 


As the current situation means it is difficult to meet up, the CWA are joining with their partners, the Society of Wetland Scientists Europe (SWS Europe) to offer online networking opportunities to students.

Students …

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Posted on: April 8, 2020

CPD Training

The CWA has partnered with Cranfield University to deliver the Treatment Wetlands for Wastewater Treatment module on the Nature Based Solutions for Water and Land Managment professional development (CPD) course


With the ever increasing need to deliver sustainable solutions for water and land management worldwide, being able …

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Posted on: Nov. 14, 2019

Monthly webinars are offered as a benefit of Society of Wetland Scientists membership. However, once each quarter, in March, June, September and December, the monthly SWS webinar is open for non-members to attend.

Details can be found here

Also check out the SWS YouTube Channel for past webinars 

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Posted on: Nov. 14, 2019

The 20th AGM of the CWA was held on 10th October 2019 in Cheltenham. Please read the minutes here. The 21st AGM will be held during the CWA conference in September 2020.

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Posted on: Oct. 10, 2019

The CWA has had its 20th AGM on 10th October 2019, and we are excited to announce some new faces on the committee.

Andy Freeman of ARM takes on the role of treasurer, and we welcome back Cat Mc Ilwraith of the Rivers Trust and welcome Prof John Williams of Portsmouth University …

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Posted on: Sept. 21, 2019

The CWA committee are holding an all-day workshop on Thursday 10th October. The programme for the day will include a committee meeting, a review of the CWA membership structure, a social media planning session and the AGM at 14:00

All CWA members and interested parties are invited to attend the …

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Posted on: Jan. 10, 2019

New year, new job? Wessex Water are creating an exciting post for a constructed wetland scientist...

Do you have experience in delivering constructed wetlands for environmental gains? Do you have a confident and flexible approach?

Salary £31,967 - £42,834, dependent on experience

Closing date 25 January 2019, interviews to be held on …

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Posted on: Dec. 6, 2017

The CWA has been invited to hold a symposium at the SWS Europe chapter meeting in Macedonia in Spring 2018. If anyone is interested in presenting, please get in touch

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Posted on: Dec. 6, 2017

If anyone has any points they would like the committee to discuss, please contact us before 8th December 2017

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Posted on: Nov. 6, 2017

The CWA committee will be holding a meeting and workshop on Thursday 9th November 2017 at ARM, Rugeley, UK.

On the agenda are the 2017 and 2018 conferences, CWA sites database, autumn newsletter, accreditation and 3-year financial plan. If members would like to contact the CWA about the committee meeting, please email …

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Posted on: Oct. 17, 2017

The CWA held its AGM during the annual CWA conference at Slimbridge on 27th September 2017

Please find a copy of the minutes here.

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Posted on: Oct. 11, 2017

The CWA held a successful 2 day conference at WWT Slimbridge on 27th and 28th September 2017

The event comprised a day of workshops, group discussion and site visits and a day of conference presentations on the themes of wetlands as green infrastructure and technological developments in the field of …

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Posted on: Sept. 15, 2017

The CWA will launch its new guidelines for small sewage disposal systems at the 2017 CWA Conference this month

The guidelines have been produced by CWA members to establish a design standard with a view to obtaining Environment Agency approval for constructed wetlands to treat domestic septic tank effluent


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Posted on: Sept. 12, 2017

27th September 2017, 16:30, Slimbridge Wetland Centre, Gloucestershire

The CWA will be holding its AGM after the site visits on Day 1 of the conference at the Slimbridge Wetland Centre

Refreshments will be offered at 16:30 to welcome attendees and the meeting will be followed by drinks at the Tudor Arms, Slimbridge.

Agenda download …

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Posted on: May 25, 2017

Do you design, create or manage constructed wetlands?

The CWA is updating the database of ALL constructed wetlands in the UK

The CWA has traditionally held a list of UK CW sites and due to rising demand, largely from researchers and other academics, we are beginning a project to improve and update it. We are …

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Posted on: May 17, 2017

The Constructed Wetland Association 13th Annual Conference ‘Constructed wetlands: natural systems for water management’ is taking place on the 27th & 28th September 2017, in the beautiful surroundings of Slimbridge Wetlands Centre in Gloucestershire, UK.
Bringing together the key stakeholders from the water pollution control community, this two …

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Posted on: March 20, 2017

The CWA and Society of Wetland Scientists Europe Chapter have prepared a memorandum of cooperation which will be signed at the 2017 SWS Europe Chapter meeting at the University of Algarve, Faro, Portugal on 4-6th May 2017

The benefits to the CWA should include improved contacts and networking possibilties, complementary membership opportunities, …

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Posted on: March 8, 2017

Are you involved with wetland creation or management?  The Wildfowl and Wetlands Trust are collecting evidence about the multiple benefits of wetlands.  Please take the @WWTworldwide survey to help create more wetlands

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Posted on: Jan. 31, 2017

1st February 2017, 09:30, Skype

The committee will be discussing the 2017 Annual CWA conference and updates to the website. If CWA members have anything they would like the committee to consider, please email us.

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Posted on: Nov. 28, 2016

Developments in Wetland Technologies for control of Wastewater and Diffuse Pollution
11th October 2016 - 12th October 2016, Manchester Town Hall

Following our successful collaboration in 2014, the Constructed Wetland Association’s 12th annual conference ran alongside the European Wastewater Management Conference enabling participants of both conferences to explore wider issues …

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Posted on: June 6, 2016

The CWA AGM was held on 11th May 2016 at Westport Lake Visitor Centre, Stoke-on-Trent, UK. The Staffordshire Wildlife Trust site overlooking Westport lake was the perfect location. The day turned out hot and sunny which also contributed to a very enjoyable afternoon visit to The Coal Authority’s mine water treatment site …

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Posted on: May 13, 2016

Wildfowl & Wetlands Trust (WWT) have launched a guide to help farmers stop pollution running off their land into water. It’s published free online by CWA members – the Wildfowl & Wetlands Trust (WWT), supported by Natural England’s Catchment Sensitive Farming (CSF) project.

The free guideline on the use of constructed wetlands …

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Posted on: Feb. 20, 2016

The CWA was formed to promote and encourage the creation of an industry in which good practice is shared and quality standards of design, installation and maintenance are established and upheld. With this in mind, an accreditation process has been set up for members involved in the design, consultancy, installation …

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Posted on: Feb. 19, 2015

Small sewage discharges (SSDs) are a big deal for water quality.  There are estimated to be hundreds of thousands of isolated properties in the UK that are not connected to mains sewerage, and there is no central record of where these are or how effectively the wastewater is treated.  Poor …

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Posted on: Feb. 5, 2015


7 – 8 October 2014, Manchester, UK

The 2014 conference ran alongside the European Waste Water Management Conference and presented the opportunity to explore overlapping fields and new areas for collaboration.

As in previous years, the conference shared and promoted best practice in the design, implementation …

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Posted on: Sept. 12, 2014


Want to win a free student delegate place at this years CWA Conference in Manchester ?

Write a news item (500 word max) on any constructed wetland related issue, complete with a photo. Email your entry to by midnight (UK) on 21st September 2014 to be in for a …

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Posted on: July 16, 2014

This year the Constructed Wetland Association’s annual conference will run alongside the European Waste Water Management Conference (EWWMC) presenting the opportunity to explore overlapping fields and new areas for collaboration.

Natural and constructed wetlands play an important role in the treatment, management and control of water pollution, in …

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Posted on: May 29, 2014

CWA Committee elections took place at this years AGM, which took place at WWT Slimbridge on the 7th May. We would like to welcome new members to the committee and thank those who have chosen not to be re-elected.

Our new Chairman is Geoff Sweaney from CH2M Hill. He has …

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Posted on: March 12, 2014

Members of the CWA are invited to attend the Constructed Wetland Association AGM which will be held at the Wildfowl & Wetlands Trust Centre, Slimbridge at 11:00am on Wednesday 7th May.

The agenda will include an update on Finances and Membership, the Chairperson’s Report and Elections to the Committee …

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Posted on: March 12, 2014


Published in 2000 by IWA Publishing as part of their Scientific and Technical Reports, this book is now available to download for free, courtesy of IWA Publishing via the  IWA Water Wiki site.

Scientific and Technical Report No.8: Constructed Wetlands for Pollution Control Processes, Performance, Design and Operation

R. …

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Posted on: March 12, 2014

**CALL FOR PRESENTATIONS** Submission deadline 25th April 2014

The next CWA Conference will be held in Manchester in conjunction with the European Wastewater Management Conference on 7 – 8 October.

We are inviting presentations on the following themes:


Sewage Treatment

Emerging Pollutants


Natural and constructed wetlands play an important …

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