TA5 1UD, NNB Generation Company (HPC) Limited: environmental permit variation (change) application advertisement
Published 5 December 2023
Applies to England
© Crown copyright 2023
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This publication is available at https://www.gov.uk/government/publications/ta5-1ud-nnb-generation-company-hpc-limited-environmental-permit-variation-application-advertisement-eprjp3122gmv011/ta5-1ud-nnb-generation-company-hpc-limited-environmental-permit-variation-change-application-advertisement
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/V011
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 (HPC) 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 tunnelling effluent and muck bay drainage (permitted as water discharge activity (WDA) reference H in the current permit)
Volume
Existing permitted discharge of 2,592 cubic metres per day (m³/day)
Brief description of the proposed variation (change)
The proposed variation (change) to WDA reference H is to increase the concentrations of the following naturally occurring parameters present in the tunnelling effluent and muck bay drainage:
• Increase the currently permitted concentration of dissolved inorganic nitrogen (DIN) from 8,146 micrograms per litre (µg/l) to 15,000µg/l
• Increase the currently permitted concentration of total chromium from 48µg/l to 144µg/l
• Increase the currently permitted concentration of total cadmium from 1µg/l to 3µg/l
There are no other proposed changes to this existing WDA (activity reference H) 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/ta-1ud-nnb-generation-company-hpc-limited-v011
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 14 January 2024.
You can comment:
Online: https://consult.environment-agency.gov.uk/psc/ta-1ud-nnb-generation-company-hpc-limited-v011
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 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
Other current variation applications for Hinkley Point C (HPC)
We are also currently determining another, separate construction WDA permit variation for HPC, for which you access the publication via the link below:
You can also access the permit variation application documents for EPR/XP3321GD/V005 and comment on the consultation via the link below:
https://consult.environment-agency.gov.uk/psc/ta5-1ud-nnb-generation-company-hpc-limited-eprv005
Find out more about our regulation of the HPC site via our GOV.UK page at:
https://www.gov.uk/guidance/hinkley-point-nuclear-regulation