The first phase of the Leeds Flood Alleviation Scheme has reached a major milestone as all three moveable weir gates have now been successfully put in place at Knostrop Weir on the River Aire.

Costing in the region of £50million, the scheme is being led by Leeds City Council in partnership with the Environment Agency.

The final stages of the work at Knostrop include the removal of the remaining cofferdam ahead of it becoming a fully operational flood defence later in May.

The three gates have been constructed as part of an innovative approach using moveable weirs, which can be lowered in flood conditions to reduce river levels and the threat of flooding. This is the first time that moveable weirs are being used in the UK for a flood defence.

The weirs can be lowered, and raised, by deflating and inflating ‘bladders’ fabricated from a bullet proof neoprene material under each gate, which act like giant air filled pillows.

The first of the weir gates at Knostrop Weir has already been tested. Later this month the cofferdam structure, which was installed to allow a dry working area in the river for the construction of the weir gate, will be flooded with water and the sheet piles then removed.

New fish and eel passes are also being constructed at Knostrop. The structures consist of a number of shallow trays which the fish and eels can swim and jump up, allowing them to migrate upstream. The previous stone weir was approximately three metres high and a barrier to fish and eels moving up the River Aire.

Moveable weirs are also being constructed further upstream at Crown Point in the city centre, where the installation of the first of two weir gates has been completed. Last month, reinforced concrete works were finished which meant the bladders and gates could be fixed in place prior to testing.

Now this gate has been installed and tested, the cofferdam has been flooded and the sheet piles are being removed to allow for work to begin on the final weir gate adjacent to Fearns’ Island.

The Leader of Leeds City Council, Cllr Judith Blake, recently visited both sites to see first hand how the weirs will be reducing the risk of flooding to the city.

Leader of Leeds City Council Councillor Judith Blake said:

It was fascinating to see the new flood scheme up close and especially to see the amazing technology and engineering involved in putting these moveable weirs in place to control the flow of the River Aire.

It is such a simple idea but it is fantastic to see Leeds at the cutting-edge of the field using the latest technology in this way.

The value of the Leeds Flood Alleviation Scheme in terms of the reassurance it will offer residents and businesses over the coming years and decades is incalculable, so we very much look forward to seeing phase one complete later this year while we continue to make the strongest possible case for further significant measures to help protect all our communities threatened by flood-risk across the city as soon as possible.

Work on flood defence walls in the Holbeck area are also still underway. Temporary traffic management remains in place and will do so until September 2017. The traffic management has been coordinated with the Bridgewater Place wind baffle scheme in an effort to minimise disruption.

The site works for Phase 1 of the Leeds Flood Alleviation scheme commenced in January 2015 and are due to be completed this summer. It is one of the largest river flood defences in the country. When complete, it will provide an increased level of protection from flooding from the River Aire and Hol Beck for residents and businesses in the city centre. The scheme also includes defences at Woodlesford.

Further information on Phase 1 of the scheme can be found at www.leeds.gov.uk/fas.

Work on phase 2 of the project is currently underway to develop a proposal for how to increase the standard of protection in Leeds including areas such as Kirkstall and Stourton.

On Tuesday 28 March, following a two-day trial, magistrates found company director, Mark Paul Stone, and his company, Salhouse Norwich Ltd, guilty of allowing an illegal waste site to operate from a site it owned.

A third defendant, Mark Ian Quinsey, pleaded guilty at an earlier hearing to running the illegal operation, failing to clear the site when told to by the Environment Agency, and illegally exporting waste. Yesterday he was sentenced to 20 weeks custody which has been suspended for 18 months, and ordered to carry out 200 hours of unpaid work.

Norwich Magistrates’ Court heard that hundreds of tonnes of waste mattresses and mattress textiles were found stored on the site – almost 100 times as many as a registered exemption for the operation allowed.

Stone denied knowing that the waste site, off Rice Way on Salhouse Industrial Estate, run by their tenant, Quinsey, was illegal.

Quinsey, 39, trading as Salhouse Recyclers, had registered exemptions for an operation far smaller than the one he ran and should have applied for a permit.

Nicholas Ostrowski, prosecuting on behalf of the Environment Agency (EA), told the court that he had deliberately breached environmental regulations and despite being served an enforcement notice to clear the site, had failed to do so.

Mr Ostrowski said when EA investigators visited the site in August 2015 following a report from a member of the public, they found the site so jammed full of badly stored mattresses and mattress textiles, there was a serious risk to the environment. The fire service was also concerned about the risk of fire.

It was heard that during investigations Quinsey sent paperwork to the EA, which included evidence of a shipment of 27 compressed bales of waste to Egypt for recycling in March the previous year. However Quinsey did not have the appropriate approvals in place for this export.

The court was told that an enforcement notice served on Quinsey in August was only partly complied with when some waste metals were removed.

The EA also approached Salhouse Norwich Ltd and Stone, who were advised to clear the site and an action plan for the removal of the waste was requested but the waste still remains on site.

The magistrates were told the EA made five requests for a voluntary action plan from the company.

Quinsey of The Lane, Briston, Norfolk, told investigators he had found a company in Egypt which would take the fabric for recycling but then there was a problem with Egyptian customs so he had to store the material until he found another outlet, which he was unable to find.

He didn’t contact the EA as he was worried his business would be closed down and had hoped to resolve the situation himself.

Quinsey admitted that the site had no environmental management system, no fire suppression system, no fire detection system, no dust suppression system, no litter prevention infrastructure nor sealed drainage system. He also admitted having no insurance for his activities and no official lease on one of the buildings he used.

He said the business had left him in debt, claiming that it grew too quickly. He admitted he probably hadn’t done enough research.

Stone, 69, from Marleybone High Street, London, told investigators that Quinsey had said he had relevant permissions to carry out the waste operation. No checks were made to ensure these permissions were in place.

He said his company had concerns about the fire risk and were “horrified” by all the waste on site but were worried if they asked Quinsey to stop operating, he would leave them with a factory full of waste. He also admitted being aware that the operation was out of hand and perhaps should never have started.

An analytical chemist for the EA concluded that any plume from a fire at the site could contain toxic and harmful substances which could affect human health.

Mr Ostrowski said Quinsey, Stone and Salhouse Norwich Ltd had co-operated with the investigation and Quinsey had removed some waste from the site.

Quinsey pleaded guilty to operating a waste facility without a permit, failing to comply with an enforcement notice and exporting waste to Egypt without the appropriate permissions in place. He was sentenced to a total of 20 weeks custody which has been suspended for 18 months, 200 hours of unpaid work and ordered to pay a contribution to costs of £720. He was also ordered to pay a victim surcharge of £115.

Following trial Stone and Salhouse Norwich Ltd were found guilty of knowingly permitting the operation of a waste facility without a permit. Stone and Salhouse Norwich Ltd will be sentenced on 5 May following a pre-sentence report.

After the hearing Environment Agency investigator Lorraine Machin said:

We acted quickly to try to get the occupier and landowner to clear the site because of the environmental and fire risk but the majority of the waste still remained on site.

This case shows how important it is to ensure that any new operation has been fully researched, properly permitted and any site used is adequate for the operation.

Mark Ian Quinsey pleaded guilty to:

1. Between 16 August 2015 and 28 October 2015 at land off Rice Way, Salhouse Industrial Estate, Norwich NR7 9AP, you did operate a regulated facility, namely a waste operation for the treatment and storage of waste, without being authorised by an environmental permit granted under Regulation 13 of the Environmental Permitting (England and Wales) Regulations 2010.

Contrary to Regulation 12(1)(a) and 38(1)(a) of the Environmental Permitting (England and Wales) Regulations 2010

1. You failed, without reasonable excuse, by 8 January 2016, to comply with all the requirements in a notice dated 24 August 2015 and served on 24 August 2015 pursuant to section 59 (1)(a) of the Environmental Protection Act 1990 to remove controlled waste from land occupied by you at the date of service of the said notice known as land off Rice Way, Salhouse Industrial Estate, Norwich NR7 9AP in the county of Norfolk.

Contrary to section 59 (5) Environmental Protection Act 1990

1. On 7 March 2014 and by virtue of Article 37 of the European Waste Shipment Regulation EC 1013/2006, you transported waste namely waste textiles to Egypt, a country to which the OECD decision does not apply as listed in the Annex to EC Commission Regulation 1418/2007

Contrary to Regulation 23A(2) and 58 of the Transfrontier Shipment of Waste Regulations 2007

Mark Paul Stone was found guilty of:

Between 24 August 2015 and 8 June 2016 on land off Rice Way, Salhouse Industrial Estate, Norwich NR7 9AP, Salhouse Norwich Limited did, with your consent or connivance or attributable to neglect on your part as a director of Salhouse Norwich Limited, knowingly permitted the operation of a regulated facility, namely a waste operation for the storage of waste, without being authorised by an environmental permit granted under Regulation 13 of the Environmental Permitting (England and Wales) Regulations 2010

Contrary to Regulation 12(1)(a), 38(1)(b) and 41(1)(a) and (b) Environmental Permitting (England and Wales) Regulations 2010

Salhouse Norwich Ltd was found guilty of:

Between 24 August 2015 and 8 June 2016 at land off Rice Way, Salhouse Industrial Estate, Norwich NR7 9AP, you did knowingly permit the operation of a regulated facility, namely a waste operation for the storage of waste, without it being authorised by an environmental permit granted under Regulation 13 of the Environmental Permitting (England and Wales) Regulations 2010.

Contrary to Regulation 12(1)(a) and 38(1)(b) of the Environmental Permitting (England and Wales) Regulations 2010

South West Water has been ordered to pay £89,000 in fines and costs for polluting a stream in Woodbury near Exeter. The case was brought by the Environment Agency.

A court heard how large numbers of fish died following the incident at Ham Lane Combined Sewer Overflow (CSO) in September 2014 following an illegal discharge. CSOs are allowed to discharge during storm conditions to prevent the internal flooding of properties. They are not permitted to operate during periods of dry weather.

The spill was caused by a blockage that resulted in effluent being discharged into a nearby stream over one to two days. The pollution adversely affected water quality in the stream and killed more than 150 fish.

The water company must report any fish kills that occur following a pollution incident. It failed to report this important information to the Environment Agency.

Instead, a witness alerted the Environment Agency to the seriousness of the incident after seeing South West Water staff collect and remove dead fish from below the CSO discharge pipe over several days as part of its remediation work on the stream.

The discharge occurred during a period of dry weather. The dead fish included minnows, stone loach, bullhead and eels.

Pete Ball of the Environment Agency said:

It is important water companies regularly inspect and maintain their structures and assets such as CSOs to ensure they are operating in accordance with their permit and do not cause pollution.

While South West Water responded quickly to this incident, it failed to report the extent of the environmental impact of this spill, especially the fish deaths.

Appearing before Exeter Crown Court, South West Water Ltd was fined £70,000 and ordered to pay £19,023 costs after pleading guilty to breaching its environmental permit at Ham Lane Combined Sewer Overflow (CSO), Woodbury on or around 27 September 2014.

A high-volume pump used during major flood events will be tested in Somerset next week (4 to 6 April 2017) as part of Exercise Wessex Flare – a 3-day training exercise run by the Environment Agency.

The 24-inch diameter steel and alloy diesel pump is capable of pumping 1,650 litres of water per second – the equivalent of filling 20 baths in a second. It will be loaded onto an 8-wheel lorry at its base in Bawdrip village, and transported to the remote North Drain pumping station several miles away.

A team of incident operatives and experienced pump specialists from across the country will then attach the 12-tonne pump to 40 metres of pipework over a period of at least 8 hours before setting it in motion.

Operations manager Robbie Williams said:

Flooding can have a devastating impact on people’s lives and homes. We care about our communities and want to do whatever we can to help prevent this type of incident. Using pumps to manage water levels and reduce the impact of flooding is one of the many ways we can do this, alongside temporary defence barriers.

Preparing and practising pump deployment helps to ensure we act more quickly and effectively. It’s also an opportunity to develop knowledge and skills so people can confidently operate this type of heavy machinery nationwide, with the help of the military and other groups.

The exercise builds on Exercise Wessex Teal where Wiltshire-based soldiers were trained to deploy temporary defence barriers. Some of those soldiers will be on hand to watch the pump in action and learn how it works. The Environment Agency’s new Incident Command Unit (ICU) will also be on-site streaming live images of the exercise back to the Agency’s Bridgwater incident room.

The ICU serves as a mobile incident room and temporary headquarters for staff out in the field, enabling better site management, situational awareness and visibility in flood risk communities.

It is important everybody is aware of their own flood risk. People can find out how to get ready and check their flood risk on GOV.UK or calling Floodline on 0345 988 1188.

Vital work to reduce the risk of flooding to more than 3,200 homes and businesses in Exeter reaches another key milestone this weekend as work around the Quay area of the city is halted to avoid disruption to visitors and businesses over the summer. Work will resume in October.

Over the past 5 months contractors working on behalf of the Environment Agency have been building a flood defence system that will be put in place when flooding is expected and then taken down when river levels recede. The defence follows the line of the existing bollards.

A temporary tarmac surface is to be laid to some of the Quay area for the summer as further works in these areas will be necessary. The reinstatement of permanent surfaces will be made at the end of the works in 2018. At Piazza Terracina works are now nearing completion with permanent paving being laid. Over the weekend BMM JV are putting the finishing touches to defences in this area.

Richard Cox, project manager for the Environment Agency, said:

We are making substantial progress and would like to thank all businesses, residents and visitors for their patience and co-operation.

We appreciate this work has caused disruption to the Quay and other areas of the city. Once complete this £32 million scheme will reduce the risk of flooding to thousands of homes and businesses in the city.

During winter 2017/18, BMM JV will be back at the Quay to complete flood defences around Quay Bridge and the Samuel Jones pub area. Some disruption will be experienced during this time but the Quay will remain open throughout works.

Work is due to start at Eagle Cottages and Haven Road after Easter.

BMM JV is still on site at Bonhay Road where works are due to finish later in the summer. This is later than anticipated due to very poor ground conditions. The appearance of the new 400m flood defence wall being built from Flowerpots to Exe Bridges has caused concern among some members of the public. The Environment Agency wishes to reassure the public that the flood defence, once complete this summer, will be clad in brickwork and have the grassed banks reinstated on both sides.

The flood defence construction works are programmed to finish in 2018.

Stay updated about Exeter flood defence scheme by:

• subscribing to GovDelivery emails
• following @EnvAgencySW, @ExeterCouncil or @DevonCC on Twitter using hashtag #ExeterFDS

Notes to editors

Phase 2 of Exeter’s £32 million scheme started in July 2016.

Phase 1 of the scheme got underway in 2014 and saw construction work just downstream of Exeter Quay. The Trew’s flood relief channel and the side spill weir at the top of the channel have been lowered. This increased the flow capacity of the flood relief channel, which will help reduce flood risk during high river flows.

Exeter City Council and Devon County Council each contributed £3 million to the scheme. The remainder is funding from Central Government.