Notice

TA5 1UD, NNB Generation Company (HPC) Limited: environmental permit variation (change) application advertisement

Published 20 June 2024

This notice was withdrawn on 9 August 2024

The consultation period for this application has ended. You can view current licences on the Public Registers.

Applies to England

Details of the application

The Environment Agency has received an application to vary (change) an environmental permit under the Environmental Permitting (England and Wales) Regulations 2016 from NNB Generation Company (HPC) Limited. The proposed variation may have significant negative effects on humans or the environment.

Application number

EPR/JP3122GM/V012

Regulated facility type

Water management zones and effluent treatment units serving the Hinkley Point C (HPC) construction site

Application type

Variation

Regulated facility address

Hinkley Point C Construction Site
Hinkley Point C power station
Wick Moor Drove
Near Bridgwater
Somerset
TA5 1UD

National grid reference discharge point

Existing discharge permitted via Outlet 12 at NGR ST 19315 46475

Receiving environment

Severn Estuary

Effluent type

Existing permitted discharge of trade effluent consisting of effluent from Cold Commissioning activities (permitted as water discharge activity (WDA) reference I in the current permit). This includes effluents generated from activities such as flushing, hydro-testing, byproducts from demineralised water production from the demineralised water plant and commissioning effluent treatment plant (CETP).

Volume

Existing permitted discharge of 1,500 cubic metres per day (m³/day)

Brief description of the proposed variation (change)

The proposed variation (change) to WDA reference I is to include:

• The addition of a permitted compliance limit for the discharge of 102 micrograms per litre (μg/l) of total copper
• The addition of a permitted compliance limit for the discharge of 1,200μg/l of free chlorine
• The addition of a permitted compliance limit for the discharge of 140μg/l of total Zinc
• The addition of multiple constituent treatment chemicals from several cleaning and biofouling prevention products that are required to maintain the efficiency of the demineralised water plant

There are no other proposed changes to this existing WDA (activity reference I), or any other WDAs as part of this permit variation application.

How to view the variation application

The variation application can be viewed online: https://consult.environment-agency.gov.uk/psc/ta5-1ud-nnb-generation-company-hpc-limited-v012

Please contact us via e-mail at psc-waterquality@environment-agency.gov.uk or contact us on 03708 506 506 to arrange to see the variation application documents if you are unable to access Citizen Space.

How to view and comment on the variation application

If you have any comments on the variation application send these by 6 August 2024.

You can comment:

Online: https://consult.environment-agency.gov.uk/psc/ta5-1ud-nnb-generation-company-hpc-limited-v012

Via email: psc-waterquality@environment-agency.gov.uk

For advice about how to make a representation or if you are unable to make a representation via our e-consultation tool (Citizen Space) or e-mail please call 03708 506 506.

The Environment Agency will normally put any comments it receives on the public register. This includes your name but not your personal contact details. Please tell us if you do not want your response to be public.

The privacy notice for permit applicants/operators can be viewed at https://www.gov.uk/guidance/environmental-permits-privacy-notice

Find out more about our regulation of the HPC site via our GOV.UK page at the link below:

https://www.gov.uk/guidance/hinkley-point-nuclear-regulation