# The Hinkley Point Harbour Empowerment Order 2012, Paragraph 9: Noise and vibration: noise level

Extent: E+W+S

(1) The level of noise emitted during construction or maintenance of the development must not exceed the limits set out in the following table as determined at the nearest noise sensitive premises and monitoring of the noise levels during the construction or maintenance of the development must be carried out as part of the noise and vibration management plan submitted and approved pursuant to condition 11 (Noise and vibration: control of noise during construction, maintenance and use).
Assessment Period
BS5228
Days of Week
Time of Day
Category A-5 dB LAeq Hour
Mondays – Fridays
07.00-18.00
60
*18.00-23.00
50
*23.00-07.00
40
Saturdays
07.00-13.00
60
*13.00-23.00
50
*23.00-07.00
40
Sundays and Bank Holidays
*07.00-23.00
50
*23.00-07.00
40
Notes: dB re: 20μPa. *Offshore construction work only.
Where LAeq = the equivalent continuous A-weighted sound pressure level, being the single number that represents the total sound energy measured over that period.
(2) The above noise level restriction shall apply except for specific, short duration construction or demolition activities (to the extent only as permitted as described in the approved noise and vibration management plan) during which an increased noise threshold of 75 dB LAeq, 1hour shall apply. Any such activities and duration of such activities must be notified to the local planning authority and local residents at least 48 hours before they commence and the duration of such activities and number of such activities during the construction and maintenance of the development shall be limited to those approved in writing by the local planning authority.
(3) In the event that the site preparation works permission is implemented by the carrying out of a material operation and contains noise limits relating to specified times (by reference to specified hours and days), the noise limit in this condition relating to a time so specified shall cease to apply and the noise limit in the site preparation works permission relating to that time shall apply as a noise restriction applicable to both the site preparation works and the construction and maintenance of the development (unless the development consent order referred to below has been implemented).
(4) In the event that a development consent order for a new nuclear generating station at Hinkley Point is implemented by the carrying out of a material operation and contains noise limits relating to specified times (by reference to specified hours and days), the noise limit in the above table relating to a time so specified shall cease to apply and the noise limit in the development consent order relating to that time shall apply as a noise restriction applicable to both the development authorised by the development consent order and the construction and maintenance of the development.
(5) Noise levels must be determined in accordance with the provisions of British Standard 7445.

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Source: https://www.legislation.gov.uk/uksi/2012/1914/schedule/1/paragraph/9 (the official version)
Page: https://openlegislation.uk/hinkley-point-harbour-empowerment-order-2012/schedule-1/paragraph-9
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.