River Sowy & King's Sedgemoor Drain (KSD) Enhancements Scheme Phase 1: ES Addendum Consultation

Closed 1 Aug 2021

Opened 3 Jul 2021

Feedback expected 3 Aug 2021

Results updated 3 Aug 2021

River Sowy and King's Sedgemoor Drain (KSD) Enhancements Scheme: Phase 1                                 


Regulation 12A(3)(a) of the Environmental Impact Assessment Land Drainage Improvement Works (Amended) Regulations 1999 SI 1999/1783

Applicant: Environment Agency, Horizon house, Deanery Road, Bristol, BS1 5AH

Date of decision: 03/08/2021


Statement of the determination

The Environment Agency gives notice that it has determined, in accordance with the Regulation specified above, that the proposed improvement works (River Sowy and King's Sedgemoor Drain (KSD) Enhancements Scheme: Phase 1, herein referred to as the ‘scheme’) to the flood defences on River Sowy and King's Sedgemoor Drain near Bridgwater between Parchey Bridge, Chedzoy and Monk’s Leaze Clyce Sluice, Langport should proceed.



  1. Monitoring of the significant adverse effects of the improvement works on the environment and the completion of mitigation measures as identified in the Mitigation Action Plan;
  2. Undertake any measures identified in the appropriate assessment (under The Conservation of Habitats and Species Regulations 2017) that contribute to the monitoring or mitigation of likely significant effects;
  3. Attainment of other permits and consents, as required to deliver the activities of the scheme and Mitigation Action Plan. These permits and consents including but not limited to: Scheduled Monument Consent, Flood Risk Activity Permit and Species Licences.


A summary of the result of any consultation and how that information has been taken into account

In accordance with timelines mandated in the regulations specified above, consultation on the Environmental Statement was undertaken from 15 August 2020 to 13 September 2020. Advertisements to advertise our intention to produce an Environmental Statement, notification that an Environmental Statement was available to view and the determination to proceed with the works were posted up on site local to the works area and advertised in the press. Adverts were placed in three local newspapers (The Leveller, Bridgwater Mercury and Western Gazette) and the London Gazette. The Environmental Statement and appendices were publicly available online and were also sent to statutory consultees and local parish councils for review. For every consultation response received, an individual response addressing points raised was returned.

Consultation on the Addendum to the Environmental Statement was undertaken from 03 July 2021 to 01 August 2021. In advance of the consultation, an advert to inform that further information was available to view was placed in the press, later followed by an advert determining to proceed with the works. Adverts were placed in three local newspapers (The Leveller, Bridgwater Mercury and Western Gazette) and the London Gazette. The Environmental Statement Addendum and appendices were publicly available online and were also sent to statutory consultees for review. No comments or objections were raised.


Environmental Statement consultation response summary


Summary of consultee response

How response was taken into account

Natural England

Supportive of the works on the condition that concerns raised over mitigation and monitoring are addressed. 

Concerns addressed in the Appropriate Assessment conducted under Habitats Regulations.


The preparation of a strategic mitigation action plan was welcomed however concerns were raised over the timing of mitigation measures, the water level maintained in the ditches overwinter and the potential reduction in small scale flood conditions that benefit the designated protected site interests.  

Response incorporated into conditions outlined above.


Historic England

No concerns raised with the scheme on the condition that the Scheduled Monument Consent applied for by the drainage body is sufficient.

Inclusion of condition relating to the attainment of scheduled monument consent.

Highways England

No comments made


Member of the public

The integration of a cycle path into the scheme was proposed.

The request was considered but was determined to be outside the scope for these works with scheme funding allocated for flood risk reduction.

Member of the public

Concerns about increased flood risk to local area via rhyne system.

The concerns were allayed with a response explaining how the local drainage system functions.


Environmental Statement Addendum consultation response summary


Summary of consultee response

How response was taken into account

Historic England

No comments or objections on heritage grounds to the scheme

Response acknowledged


Main reasons and considerations upon which the determination was based

Under 12A of the above regulations this determination considered that no objection in relation to the likely significant environmental effects of the improvement works has been made.

Under 12 (2) consideration was given to likely significant effects of the improvement works on population and human health; biodiversity; land, soil, water, air and climate; material assets, cultural heritage and landscape; and the interaction between these factors as assessed in the scheme Environmental Statement[1] and Addendum2. This statement identified potentially adverse impacts to ecological features and protected species, potential residual effects on cultural heritage assets and temporary significant effects on landscape. The Environmental Statement and its Addendum has identified measures to mitigate these effects during construction and operation of the scheme in order to ensure there are no significant residual impacts. This determination is based on the delivery of these measures as described in the Environmental Statement and its Addendum.

The Environment Agency is satisfied that the conclusion reached under paragraph 12(2) in respect of the improvement works and the reasons for it address the likely significant effects of the improvement works, subject to the conditions described above and contained within the Mitigation Action Plan.



The Sowy and King's Sedgemoor Drain Enhancements Scheme Project Team





We are delivering the River Sowy and King’s Sedgemoor Drain (KSD) Enhancements Scheme, in the Somerset Levels and Moors near Bridgwater, on behalf of the Somerset Rivers Authority. An Environmental Statement has been produced for the Scheme and a previous public consultation was held, now closed, in September 2020. Please follow this link to view these consultation documents.

Due to delays resulting from adverse weather and the Coronavirus, construction planned for 2020 was subsequently delayed. We have produced an Addendum to our existing Environmental Statement which is available for consultation. The Addendum is required to assess if there were any additional environmental impacts resulting from the following changes:

  • Change to construction programme
  • Minor changes to construction methodology

The Addendum is contained within the below links. This information is supplementary to the main Environmental Statement. 

We will put in place a number of measures that will reduce the impact on the environment. Once done, the changes we need to make to the design and construction methods will not result in any significant effect on the environment, over and above what we have already described in the Environmental Statement.

This chapter will provide an overview of the changes we propose.

No new or additional cumulative effects are considered likely over and above those discussed in Chapter 12 of the Environmental Statement.

Although changing the timing of the construction works to take place over August does increase some risks to ecology, with appropriate measures in place, the effects are not significant.

Why we are consulting

An Environmental Statement outlines the environmental impacts of the scheme and summarises key findings of the Environmental Impact Assessment process.

We are required under The Environmental Impact Assessment (Land Drainage Improvement Works) (Amended) Regulations 2017 to produce an Environmental Statement and make it available for consultation for 30 days. This has now been completed, however, due to the changes already outlined, we are required to produce an Addendum to our existing Environmental Statement and consult on this for 30 days. The purpose of this is to allow interested parties to provide comments to us on the assessed environmental impacts.

Having read our Addendum, we invite you to provide your comments to us for our consideration before construction begins. Please either complete the survey at the bottom of this page or email us at sowy.ksd@environment-agency.gov.uk. The last date for submitting comments is 1 August 2021.

We ask that responses submitted using the survey on this page should be anonymous and not personally identifiable, e.g. using names or addresses. If you wish for your identity to be known or to include personal information as part of your response, please email your response to sowy.ksd@environment-agency.gov.uk.   

Should you have any problems with using the survey, you can reach us on 07950 955 527 for further assistance. If we do not receive any responses to this consultation that may cause us to revisit our plans, within this time period, then we will proceed with the proposal as described here. We anticipate that work on site will commence in Summer 2021.


  • Members of the public with an interest in the river, the species and conservation
  • Members of the public
  • Elected representatives, including MPs
  • Local councils
  • Local authorities
  • District and parish councils
  • Environmental bodies
  • Land owners
  • Drainage associations
  • RFCCs
  • Elected representatives, including MPs
  • Members of the public
  • Community groups
  • Flood action groups
  • Lead Local Flood Authorities
  • Local Risk Management Authorities
  • Flood Resilience Forums
  • Somerset Rivers Authority
  • Members of the public
  • Town and parish councils
  • Regional Flood and Coastal Committees
  • Internal Drainage Boards


  • Flood management
  • Habitats and wildlife