Tag Archives: Volunteering

Hogsmill Newsletter: May Edition

The latest edition of the Hogsmill Newsletter is now available to download. It summarises the results of River Monitoring Initiative (RMI) sampling together with other pollution monitoring and activities and events along the river.

Hogsmill Newsletter May 2017

If you have any comments or suggestions about the newsletter please contact:  Peter Short: rpetershort@hotmail.com

Calling Wandle shoppers: Help us fund Wandle cleanups with your vote at Tesco

Do you live in Wandsworth? Or perhaps the Sutton area? Do you buy your food and other shopping from your local Tesco store?

If so, you could help us to raise up to £8,000 in funding for future Wandle cleanups!

Two of our recent applications to the Tesco Bags of Help fund – Spring Clean in Sutton, and Wandsworth for the Wandle – have been successful, and now you and other local residents can help decide how much funding these projects get, with £4,000 available at each store.

Throughout May and June, until voting closes on 30th June, you will be able to vote for your favourite project in one of the local Tesco stores on the map below. If Wandle cleanups get the most votes, we will be awarded £8,000 to continue funding them for 2017 and 2018!

wandle-cleanups-2016Our cleanups make a big difference to the river. In 2016 alone we removed 47 tonnes of rubbish, clearing 4.4 km of the Wandle. So we really need this additional financial support to purchase new equipment and run the events through 2017 and 2018.

What is the Tesco Bags of Help fund?

Tesco has teamed up with Groundwork to launch its community funding scheme, which sees grants of £4,000, £2,000 and £1,000 – all raised from the 5p plastic bag levy – being awarded to local community projects.

Bags of Help offers community groups and projects across the UK a share of revenue generated from the 5p charge levied on single-use carrier bags. Members of the public will be able to vote in store during May and June to decide which projects should receive the £4,000, £2,000 and £1,000 awards.

How can you help?

You can help in two ways:

  1. Cast your own vote! The Tesco stores which are holding votes for Wandsworth and Sutton are shown on the map above. Please vote for our Wandle cleanups and help clean up the Wandle in your local area.
  1. Help us spread the word! Share this blog and let your friends and neighbours know that the vote is open until June 30th. Encourage them to shop in their local Tesco store in Wandsworth or Sutton, and cast their vote for Wandle cleanups in 2017 and 2018.

Thank you for your support in helping us to carry on running Wandle cleanups!

Cleanups

Keep up to date with the Hogsmill

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There is a new newsletter for anyone interested in or involved with the health of the Hogsmill. It summarises the results of River Monitoring Initiative (RMI) sampling together with other pollution monitoring and activities and events along the river.

Hogsmill Newsletter March 2017

If you have any comments or suggestions about the newsletter please contact:  Peter Short: rpetershort@hotmail.com

Volunteers Join Forces for the Hogsmill

The Hogsmill river doesn’t know how lucky it is!

Last week, 30 volunteers joined SERT and ZSL at London Zoo for the 2017 Hogsmill Forum.

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The Forum is an opportunity for us and ZSL to say thank you to all the volunteers who help us with our projects on the Hogsmill – Pollution Patrol and the Riverfly Monitoring Initiative.

It is also a chance to share wider plans for the river with the local community,  discussing ideas and actions for the coming year; all of which feed in to the Hogsmill Catchment Partnership which SERT host.

If you are interested in either project, get in touch – volunteering@southeastriverstrust.org

And why not have a read of these presentations which our speakers delivered through the course of the day?

Presentations:

Many thanks to ZSL for hosting us, and for letting us have a look around the zoo after the meeting!

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Hogsmill reconnected to the Thames with new fish pass in Kingston

The Hogsmill gauging station is an Environment Agency flow monitoring structure, essential for water resources planning and regulation.  It is the furthermost downstream weir in the catchment and poses a significant barrier to fish passage, preventing the recolonisation of fish to the river from the Thames below. Addressing passage at this key site has been discussed for several years but due to the sensitivity and importance in the recorded flow-gauging data, in combination with the unconventional structure it has resulted in a complicated and extensive process to identify and develop a suitable solution. JBA have helped inform the positioning of the upper baffle and through a programme of spot gaugings will update the rating of the gauging station.

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The impassable Hogsmill Kingston gauging station

The selected approach is a variation on the Low Cost Baffle (LCB) Solution as we have used elsewhere, whereby rigid baffles are put on the downstream weir face in a specific geometry and spacing to slow the water, deepen the flow and provide a distinct passage route on the weir face. However, due to the significantly steeper gradient at the site in comparison to that the design was developed for, the Trust and EA have modified the arrangement to help promote the correct hydraulics to enable fish to pass.  The maths aside, in essence this meant that each line of baffles is incrementally taller than the last, starting at 120mm and ending at 288mm at the downstream end.

With this novel approach the Trust and the Environment Agency are keen to establish how efficiently the pass/easement operates, as the principle could be adopted at other similar challenging sites. In order to get a comprehensive assessment, an exciting opportunity arose to work with Durham University who will use the project as part of a wider study looking at fish passage past human made barriers. That’s the good news. The bad news being that in order to be ready for the dace spawning season I was committed to delivering for three weeks through the bleak days of January and February. The summer would have been far too pleasant.

Due to the non-standard design the baffles were manufactured as a bespoke commission carried out by Northwood Forestry & Sawmills, made of oak as opposed to the standard recycled plastic. Once complete, myself and Norm spent the first week of the year huddled in his workshop drilling and bolting the stainless steel angle to each baffle which would enable them to be securely fixed to the concrete weir. All 36 pieces of the jigsaw were complete, coded and stacked in the lockup ready for installation.

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In the workshop with Norm fixing the stainless steel angle to the baffles

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Half of the baffles with angle attached and coded ready to go

The baffles would have to wait, as first we needed to help fish of the anguilliform variety, eels, to also be able to successfully navigate past the weir. With the eels having already made the 6000+km epic journey from the Sargasso Sea we were keen to ensure this weir would not be an abrupt dead-end. Although there was an eel pass on the weir, it has been largely ineffective for some time. A new and improved pass was called for, so out with the old and in with the new.

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Out with the old…

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and in with the new

With the eel pass installed, preparation to fix the baffles was underway. This primarily revolved around creating a dry working area, not necessarily an easy task when working in a river but with the temporary coffer dam supplied from RN Inspection Services this was achieved with unbelievable effectiveness.

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The coffer dam installed providing a manageable working area behind

For the next two weeks, Roo and I lugged baffles, drilled holes, spaced, chocked, clamped, injected resin, removed then re-erected the dam and battled the elements. As the jigsaw slotted together the theoretical schematic drawing I was now well familiar with became a reality.

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The baffles being clamped into position before the stud secured to the concrete with resin

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Getting into the flow of things

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Half way!

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Time to move the dam and install the second half of the baffles

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Finished! The notch bisecting the baffles to allow a deeper channel for fish to pass

Once complete, the time came to remove the dam and allow the water to flow over and through the baffles. With this action the Hogsmill became re-connected to the Thames once again.

The time lapse of the build conveniently summarises the full 3 weeks into 1 minute video can be seen here:

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About to ‘pull’ the dam

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Flow and fish passage returned to the channel

Over the coming year JBA (hydrology experts) will undertake a spot flow-gauging program, to ensure that the weir continues to gauge accurately with the modifications. Meanwhile Angus at Durham University and ourselves will monitor the LCB fish pass/easement aiming to understand its performance for coarse fishes such as chub, dace and roach.

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One aspect of the monitoring is a camera looking across the upper notch

A BIG thanks to: All those involved in the various teams at the Environment Agency, partners in the project especially those in Hydrometry and Telemetry and Fisheries.  Angus, Martyn and Jeroen at Durham University for bringing their wealth of monitoring experience and expertise to the project. JBA for carrying out the hydraulic assessments associated with the project. Bedelsford School who kindly agreed to us hooking up to their electricity supply to power the monitoring equipment. Rob Waite at the Royal Borough of Kingston for helping us to secure access and parking at the site. The Thames Anglers Conservancy, especially Will, for getting involved and helping to install the eel pass. Norm Fairey for your continued help with all things fishy and manufacturing. And my good mate Roo for the long hours, hard graft, permanently cold hands and near permanent good humour.

 

Get ready for London Rivers Week 2017

Get your diaries out and calendars open, the dates for London Rivers Week 2017 have been confirmed!

LRW logo finalLondon Rivers Week 2016 brought together many partners across London, delivering a total of 35 public events to get everyone involved with their local river. This year, we want to make it even bigger and better.

London Rivers Week 2017 will start on Monday 26th June and run through to Sunday 2nd July. During this week, organisations across London will put on a variety of river themed events including cleanups, guided walks, information talks, citizen science taster sessions and more.

To find out more about London River Week, check out the Thames 21 website page where all the events will be listed: http://www.thames21.org.uk/londonriversweek/

Until then, keep your eyes peeled for more details on what is to come!

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Improvement Works on the River Dour

By Chris Gardner

In 2015 the South East Rivers Trust was awarded a £31k grant through the Department of Environment Food and Rural Affairs (DEFRA) Catchment Partnership Action Fund (CPAF) to deliver fish passage and habitat improvements on the River Dour in Dover. All these improvements would be designed to increase the health and resilience of the river environment for fish and other species, to meet the requirements of the EU Water Framework Directive.

River Dour an Urban Chalkstream

The River Dour is a short (4 km) little chalkstream that rises in a rural setting but soon flows through the highly urban centre of Dover. This delightful little river boasts a healthy brown trout population, but the habitat is highly degraded due to urbanisation and impounded / fragmented due to a legacy of watermills.

A spotty brown trout

We assessed the urban part of the catchment by walkover survey, looking for potential projects. These were then prioritised on a cost-benefit basis, resulting in four sites where fish and eel passage could be addressed. Two were simple fish and eel passage easements and two were sites for eel passes.

The ruins of the old water mill at Minnis Lane.

Work began in October 2015 with a volunteer event at Minnis Lane near the aptly named village of River. An old watermill ruin at the site presented a complete barrier to fish and eel passage. The main part of the weir was very high and a fish pass here would have been way beyond the budget available. However, a parallel channel had one small step weir and an over wide shallow section of channel upstream that made this route impassable. To make this passable to fish and eels, we fitted a wooden box to the downstream end of the small step weir had a wooden box, to raise the water level up the step so fish could navigate it. We also used faggot bundles as flow deflectors to define a deeper channel through the over wide shallow section. Many thanks to Anita for helping to organise the volunteers and to the volunteers for their hard work! You know who you are!

Fixing in the faggot budles at Minnis Lane

In May 2016, we also fitted two eel passes to Halfords Weir and Lorne Road weirs. These are large weir structures that will require technical fish passes in the future to make them passable to fish, but eel passes were achievable with the budget we had available. The Halfords weir site was quite straightforward – the setup of the weir allowed a simple gravity-fed pass to be fitted. Eel passes allow eels to move over weirs through a piece of conduit which contains brush bristles that provide a crawling medium. Water passes through the pass to provide attraction flow and passes are located at the edge of the weir as studies have shown that eels predominantly use river margins as migration corridors.

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The Lorne Road site was more complicated, because this eel pass needed to go up and over the weir, so a gravity-fed option wasn’t appropriate. Instead, we designed this pass to be fed with a water pump to provide attraction flow. Many thanks to Malcolm and Mick at the Lorne Road Mill building who allowed us to tap into their power supply! Also many thanks to Paul and Simon for their work building the passes – your help was very much appreciated.

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We delivered the final aspect of the project later in spring 2016. Morrison’s weir (near Morrison’s supermarket) presented a barrier to juvenile life stages of trout and eel. To improve its pass-ability, the weir was notched in the middle to provide a streaming flow that fish can swim up, instead of a small drop and a thin plunging flow that fish can’t easily negotiate. Bristles were also fitted into the notch so eel could climb up.

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Wise words from Baton Path Mural

Action on the River Wandle

We’ve been busy on the River Wandle in south London, with new projects starting and plenty of volunteer events. Have a look below to read about our recent Wandle work.

1. River Wandle Cleanups

On the second Sunday of every month we run a community cleanup on the River Wandle. These events are really popular and attract an average of 40 volunteers each time! Here are some of our recent cleanup blogs:

November 2016                         October 2016                          September 2016

Don’t forget to help us fund these in 2017 by voting for our Aviva Project HERE!

2. New Project: Discovering the Source of the Wandle

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We have embarked on an exciting new project to research and understand the source of the River Wandle and how it has moved over time. The project will work with local volunteers to research the source through archived material, geological maps, photographic evidence and oral histories. Read all about it here!

3. Parrots Feather Control in Beddington Park

img_0779Working with local volunteers our INNS Officer, Alan Martin, tackled the Parrots Feather found in Beddington Park on the Wandle. Parrots Feather is an aquatic invasive plant that loves to grow in still and slow moving water. Our team of volunteers manually cleared the pond whilst our Education Officer ran a number of activities to raise awareness about invasive non-native species – read the blog here!

 

 

The Hogsmill: A Work of Art

You may remember that earlier this year we were lucky enough to spend a week in the Hogsmill with the Lower Mole Partnership. It was a chilly week in March but all our volunteers were enthusiastic and we managed to restore 500m of river through the Hogsmill Local Nature Reserve. With wood from the local area we created 9 brash berms, narrowing the river to increase local flow diversity. We pulled out 48 railway sleepers to reconnect the river to a natural bank, and in more difficult places we naturalised the bank with pre-planted coir rolls. A busy week to say the least.

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What we weren’t aware of was that Peter, from the Lower Mole Partnership, turned our week in the river into a work of art. Check it out…

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It was such a great week and we hope to be back again – with another painting!

New London Wildlife Trust Project: Water for Wildlife

image001 (1)London Wildlife Trust have asked us to help spread the word about their new Water for Wildlife Project.

Water for Wildlife is a new four year project focusing on freshwater habitats and their species across London. Surveys will focus on dragonflies, damselflies (the Odonata) and their larvae, because these species provide a useful indicator of habitat changes – quickly recolonising restored waterbodies and relocating in response to climate change. Data collected will be collated into the first ever atlas of Odonata for London.

100 volunteers will receive training in surveying and monitoring. The site visits will depend on the amount of time you wish to dedicate to the project – a fortnightly visit to your local site would be great!

The training programme comprises three elements:

1. Identifying dragonflies and damselflies with Natural History Museum etymology expert Steve Brooks in collaboration with the British Dragonfly Society.
Crane Park Island on 2nd August 10.30-3pm or Woodberry Wetlands on 9th August 10.30-3pm

2. Why and how we monitor and survey freshwater habitats, London’s Odonata species, improving habitats and freshwater policy, led by Trust specialists.
Crane Park Island on 5th August 10.30-3pm or Woodberry Wetlands on 11th August 10.30-3pm

3. Practical sessions on freshwater habitat mapping.
Dates and locations to be confirmed.

Booking is essential. Please email the Water for Wildlife team at London Wildlife Trust or call 020 7261 0447 and tell us why you would like to be part of the team and which sessions you would prefer.

So if you’re interested – get in touch with them!

New London Partnership Project to tackle Urban Pollution

We have teamed up with Thames 21 on a new project to tackle urban pollution across London’s rivers.

Many improvements in the quality of urban rivers have been made in recent years, but lots of serious water quality issues remain. One of the biggest issues is ‘urban runoff’, where a toxic mixture of contaminants derived from urban areas drain straight into rivers.

With surface water drains often running straight into rivers, these contaminants are washed directly and unfiltered into urban rivers when it rains. During these ‘first flush’ events, river water often changes from being clear and colourless to being an opaque grey-black colour, and water analysis shows that a complex mixture of hydrocarbons, fine particles, nutrients, microorganisms and heavy metals are the cause.

First Flush samples from the River Wandle

First Flush samples from the River Wandle

In urban areas the contaminants causing rivers to run grey-black in colour may have a greater impact, but the locations at which they enter a river are often unknown, and they are relatively costly to survey, with samples needing to be processed by a lab.

Our project with Thames 21 is testing a low-cost sampling method that can be used by volunteers to identify complex urban contamination. In particular, it aims to investigate Surface Water Outfalls (SWOs) which discharge contaminated urban runoff into London’s tributaries of the River Thames.

The method being developed is based on evidence from data collected on the River Wandle, and urban sites in Wigan in NW England, which show that Total Suspended Solids (TSS) are strongly correlated with several important heavy metals and E. coli (a bacterium which can indicate faecal matter) and can therefore be used as a low-cost proxy to identify problematic concentrations of these contaminants.

The next step in this project is for us and Thames 21 to create Pollutant Profiles for our rivers to see if they match this correlation. You can follow progress on the project on our Twitter feed @SE_Rivers_Trust with #TSS!

Planting on the Beverley Brook

The Beverley Brook in Richmond Park has had a serious makeover recently. Through the Park, the river was severely overwide and slow moving, leaving a silty channel bed with little habitat variation for invertebrates and fish. Earlier this year, we undertook a large scale restoration project on a 600m stretch of the Brook – you can read all about what we did and why in Toby’s blog here.

Before and After Beverley Brook

Following this, we teamed up with the Friends of Richmond Park to plant trees along the banks of the Beverley Brook – providing shelter and shade in just the right amounts.

GetImage2The next step was marginal planting – so we called in some reinforcements…

Thanks to our successful bid to Tesco’s Bags of Help fund, we have been able to organise two planting days on the Beverley Brook – adding 6000 plants to the restored stretches of river. These will grow up to create great marginal habitats as well as replenish the seed bank of the river downstream.

Across the two days (Saturday 9th & 23rd April), we were joined by a total of 65 volunteers.  To start each day off, Toby gave a quick tour of the works so far while I colour coded the plants on where they should be planted. Blue plants were to be added on the water line, red and yellow to be in the marginal zone and green to be higher up the bank.

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We had ordered a variety of species, some of which are currently absent from the Brook due to the last couple of centuries of mans’ influences. We used similar and nearby rivers such as the Hogsmill and Wandle as a guide for what should be there and used historic evidence, such as Milais’s Ophelia, which was painted on the Hogsmill, to direct these choices. By planting in our fenced sections, we give the flora a chance to establish a seed bank ensuring they continue to flourish on the river for many years to come.

Ophelia 1851-2 Sir John Everett Millais, Bt 1829-1896 Presented by Sir Henry Tate 1894 http://www.tate.org.uk/art/work/N01506

Ophelia 1851-2 Sir John Everett Millais, Bt 1829-1896 Presented by Sir Henry Tate 1894 http://www.tate.org.uk/art/work/N01506)

With 65 volunteers and 6000 plants, everyone had a target of 92!

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Most of our planting was focused on the new berms created when Toby narrowed the river.

We also installed two kingfisher nest boxes along the banks of the brook. These boxes are specially designed for Kingfisher nesting. They are buried into the bank and lined with mud to allow the birds to create their nest more naturally.

Kingfisher Nest

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Big thank you to our volunteers: Abane, Ajith, Alana, Amanda, Anishka, Barbara, Bella, Bindu, Brandon C, Brandon O, Brian, Carolyn, Charles W, Charles C, Chris, Dave J, Dave W, David H, Ed, Edward, Eric, Gearoid, Graham, Guy, Harriet, Heather, Ian, Jane E, Jane P, Janet, Jill, John, Jon, Kish, Loredana, Lucy, Mariam, Mark, Matthew, Mike, Nicola, Path, Phil, Rhianna, Roger, Rosie, Sharika, Shivani, Steve, Vela, Victoria and Wally

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Planting

About Tesco Bags of Help

Tesco teamed up with Groundwork to launch its Bags of Help initiative across Scotland, England and Wales. The scheme has seen three community groups and projects in each region awarded grants of £12,000, £10,000 and £8,000 – all raised from the 5p bag charge. Bags of Help offers community groups and projects in each of Tesco’s 390 regions across the UK a share of revenue generated from the five pence charge levied on single-use carrier bags. The public voted in store to decide which local groups should receive the £12,000, £10,000 and £8,000 awards.

Restoring the Hogsmill with Volunteers

A lot of our projects recently have been large scale – removing weirs, installing fish easement solutions and reprofiling large sections of river. But now it was time for the real professionals to step in…

Volunteers

For one week in March, Toby and I were in chest waders in the Hogsmill in Ewell. Over 5 days, we were joined by volunteers from the Lower Mole Project and other local volunteers from the Hogsmill Pollution Patrol and the Wandle – all trying river restoration first hand.

The River Hogsmill is a chalk stream in south London where we’ve been working to increase habitat connectivity over the last few years. Toby has been busy removing weirs where possible, or installing rock ramps to make them passable to fish.

In Ewell, Toby removed 3 small weirs to open up fish passage throughout this 1.6 km stretch. What was missing was fish habitat.

So what did we do?

The Hogsmill through the Open Space is artificially straightened and canalised with wooden toeboarding. There is little habitat variation in channel with slow moving water and a silty bed.

Straight Channel

On the first day, a team of volunteers got stuck in pulling out the large railway sleepers serving as toe boarding. Over the next four days, a total of 48 sleepers were removed – the first step in naturalising the bank for 1km through the park.

Sleepers

Meanwhile, carefully-selected trees were felled to increase light reaching the river. With this material, we started to create brash berms to narrow the channel and increase flow.

A holding log was placed at the downstream end of the berm and secured in place with posts and wires. Then brash from the surrounding areas was added to build up a berm.

Holding Log

This was all secured in place with chestnut posts and wire across the brash after some technical “squishing”…

Squishing

Over the next four days, the volunteers created a further 8 berms. You can see from the photos that the river began to respond instantly. Flows were increased where the channel was narrowed and scoured pools started to form.

On the last day we moved our attention further downstream to the site of a weir removal in 2014. Here a small weir and concrete abutment walls were reduced, but due to the close proximity of the path had to leave a semi-engineered bank.

To enhance this, pre-planted coir rolls were fixed along the bank to soften this edge and create a more natural marginal habitat.

Coir Rolls

To install these though was no simple task. They were secured in place with chestnut stakes and wire thread round the posts and through the mesh of the bank line. Believe me, that was a skill in itself…

Wiring Coir Rolls

Here are some photos of what we all achieved..

Finished!

Big thanks to everyone who came along!! We’d also like to thank Epsom & Ewell Borough Council and the Lower Mole Project.

The 2016 Hogsmill Forum

The Hogsmill River may have its problems, but it is one of the lucky urban rivers to have huge community support and many enthusiastic volunteers.

We run our Pollution Patrol on the Hogsmill, tracking down polluted outfalls and misconnections. While ZSL run the Riverfly Monitoring Initiative which uses the kick sampling of invertebrates to check for organic pollution.

So to thank everyone for their hard work, both projects combined for a joint Hogsmill Forum – kindly hosted by ZSL at London Zoo.

Hogs Forum

The event was a huge success with some really interesting discussions on the priorities for the Hogsmill going forward. Below you can download PDFs of the presentations.

Presentations:

 

Calling Hogsmill Volunteers!

Thursday 17th, Friday 18th & Saturday 19th March
10am – 4pm
Hogsmill Open Nature Reserve

This March, the South East Rivers Trust are delivering some restoration works on the Hogsmill through the Hogsmill Open Nature Reserve, and we are looking for volunteers to join us.

What will we be doing? 

We are going to be implementing some restoration through a 1 km stretch of the Hogsmill, such as installing Large Woody Material, bank softening and channel narrowing. These techniques will help increase flow diversity in the river, creating habitats for invertebrates, fish and other wildlife.

Make sure you sign up!
For each day, we are looking for a maximum of 15 volunteers to join us. So if you are interested in joining one or all days, please email Polly as soon as you can to book your place at volunteering@southeastriverstrust.org.

Once your place is confirmed, we will send round more details nearer the time on where to meet us, timings and what you need to bring.

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The Beverley Brook Needs Your Vote!

Bags of HelpThe Beverley Brook Catchment Partnership have been successful in securing a Tesco grant from the Bags of Help fund – but we need your vote!

If you are shopping in the Sutton/Cheam area between now and Sunday 9th March, why not shop in a local Tesco store and give your vote to our project?

With your votes, we could get an extra £4000 to the project! The money will be used to make improvements to the Beverley Brook through Richmond Park following our recent restoration works. There will even be community planting days which you could get involved in.

So what are you waiting for, go vote for Project Two: Richmond Park River Enhancements!

Our Project

 

Tree Planting in Richmond Park

I am sure you have all been following the progress in Richmond Park with our Beverley Brook Restoration Project. Well now that the main channels works have been completed, we were ready to move on to the next stage: tree planting.

Tree Planting

Adding the right number of trees along the channel is crucial to restoring the habitat. Trees provide excellent cover for fish from predation, the shade they create helps to keep the river cool in the summer months, they provide habitat for birds and insects and the seeds as a food source. However too much shade can prevent marginal, emergent and submerged plant growth, so a balance has to be struck.

On a sunny February morning we were joined by seven volunteers from Friends of Richmond Park to plant nearly 200 trees along the two restored sections on the Beverley Brook.

To ensure we got it right, Toby (Senior Projects Officer at SERT) had worked closely with Royal Parks’ Julia (Head of Ecology) to map out where each species should be planted and how many.

More Trees

Tree species planted included several types of willow (white, grey, osier and goat) as well as alder, black poplar, blackthorn, hawthorn, hazel, birch and elm. All trees were given a protection from grazing and from high flows to give them the best chance at establishing. Given the flashy nature of the Beverley Brook, those trees planted closer to the channel were given some extra protection from strong flows with a large stake providing cover.

More trees

Next on the agenda for this project is to add plants to the marginal habitats in April. Watch this space and come and get involved!

Big thank you to our volunteers from Friends of Richmond Park: Brian, Ian, Janet, Jed, Mike, Roger and Simon.

Lovely gravels

Delivery on the Dour

Last month, we ventured all the way to Dover to start delivery of our River Dour Restoration Project.

The Dour is a short river, roughly 4 km in length, which runs into the sea at Dover Harbour.

We were addressing fish passage at a weir near Kearsney Abbey at Minnis Lane. Here the Dour runs through a ruined building, causing blockages to fish passage with the presence of several small weirs. The river itself has started to create its own bypass channel and our aim was to enhance this channel to allow fish passage upstream of the site.

Minnis Lane Site

Installing Brash BundlesTo do this, we installed brash deflectors to concentrate the flow of water to a narrower section, ensuring there was enough flow for fish to swim up without becoming stranded.

We were joined by 6 local volunteers on the day to help us install 12 brash deflectors in the stream.

Each deflector was secured in place with hazel posts and wire to ensure they stayed in place in higher flows.

By placing the deflectors so that they’re pointing upstream, we directed the flow of water into the middle of the channel, creating a deeper section for fish and eels to swim up.

We will be back to finish the site off soon and see how our deflectors are working.

Many thanks to our volunteers who helped on the day: Bethany, Katharine, Lilian, Ray, Simon and Tom. And a big thank you to the local Scout Club for letting us park our van in their carpark.

So before….

Before 1Before..

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After!

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After 2

Happy Anniversary to the Hogsmill Pollution Patrol

Pollution on the HogsmillWith the start of 2016 comes the One Year Anniversary of our Hogsmill Pollution Patrol scheme – and what an amazing job it has done so far!

Throughout 2015, our trained volunteers have been monitoring 15 outfalls on the Hogsmill for signs of pollution such as misconnected appliances and sewage discharge.

Together they have submitted 470 reports of pollution to us. Working with the Environment Agency and Thames Water, we have been able to start investigating these issues and begin work towards rectifying them to improve water quality on the Hogsmill River.

To read the latest update of our work, please download our Newsletter below.

Pollution Newsletter December 2015

If you see pollution on your river, call the Environment Agency hotline on:

0800 80 70 60

Pollution

Polluted Outfalls and Riverfly Monitoring

Last week I was lucky enough to visit the Hogsmill River twice with some of our dedicated Pollution Patrol volunteers.

The Team!

From left to right: Geoff, Me (Polly), Steph, Peter, Bill and Jan

Our Pollution Assessment Volunteers (PAVs) work hard to track down and monitor polluted outfalls on the river, sending reports to the Environment Agency for action.

On Wednesday we were joined at a particularly bad outfall by our local Environment Agency Officer Steph to take some samples.

Sewage Fungus

Sewage fungus at the outfall

Steph sampled for ammonia, which is used as an indicator of raw sewage entering the river, and for oxygen available to river invertebrates and fish. Oxygen is a good indicator of how polluted an outfall is, as bacteria use up oxygen to break down organic pollutants, which reduces oxygen available to other species which can sometimes result in fish kills.

Sampling for Oxygen

For this week, both readings were fine.

This is one of many outfalls we’ve been looking at. You can find Steph’s updated report here.

Hogsmill Report July 2015

On Friday I was invited along to the monthly Riverfly Monitoring session at the same outfall with the same dedicated team. Every month they get together at this location and take a kick sample of invertebrates as an indicator of how healthy the area is.

Riverfly Monitoring

Some invertebrates such as caddis flies are very sensitive to pollution and are therefore an excellent indicator of water quality. If this is something you might be interested in, check out the website here!

Thank you to all our volunteers working on the Pollution Patrol scheme – we are making progress!