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Severn Trent Water Limited – Bournheath Service Reservoir Rebuild

Notice under regulation 28(4) of the Water Supply (Water Quality) Regulations 2016 (as amended)

Reference: SVT-2021-00003

Version Number: 2

Water undertaker as appointed under section 6 of the Water Industry Act 1991 (as amended): Severn Trent Water Limited, with registered number 02366686 (hereinafter called ‘the Company’).

Assets Affected:

  • R0673 – Bournheath DSR

Details of this Notice:

  1. The Drinking Water Inspectorate (‘the Inspectorate’) has received a regulation 28(1) report of the Water Supply (Water Quality) Regulations 2016 (as amended) (‘the Regulations’) from the Company dated 28 January 2020, which states that there is or has been a significant risk of supplying water from Bournheath DSR(and associated assets as applicable) that could constitute a potential danger to human health or could be unwholesome.
  2. Consequently, this Notice is served on the Company by the Inspectorate on behalf of the Secretary of State, under regulation 28(4) for the assets listed above, for risks associated with:

Description of Risk

Hazard/ Hazardous Event/ Parameter

Hazard I D

Microbiological contamination due to ingress, low turnover or security

E.coli (faecal coliforms confirmed)

R0673-438-S-H035-C002-23Q

Microbiological contamination due to ingress, low turnover or security

Total coliforms (confirmed)

R0673-438-S-H035-C001-23P

Table 1: Table of the hazards, hazardous events, and/or parameters covered by this Notice, including the Hazard I D numbers and the description of risks.
  1. The Company are required to satisfy the following requirements.

The date given is that until or by which the requirements must be maintained or satisfied, as appropriate.

Requirements:

(a) To maintain the following measures for the period specified in each case:

  1. Weekly extended bacteriological sampling and enhanced data assessment.
    Date: Ongoing for the duration of this notice
  2. Weekly site security and inspection visits.
    Date: Ongoing for the duration of this Notice

(b) To review, revise or make operational the following measures, by the dates specified in each case:

  1. Produce a plan of the mitigation actions required to remove Bournheath service reservoir from supply in the event of an emergency. Update the regulation 27 risk assessments to reflect this risk.
    Date: Complete
  2. Confirmation of the appropriateness of the proposal to rebuild Bournheath service reservoir, to include the scope of proposed works and timescales for delivery.
    Date: Complete
  3. Following the selection of a new contactor, produce a revised programme of works.
    Date: 15 March 2024
  4. Complete construction and commissioning of new service reservoir in line with the defined scope in step (b)3.
    Date: 31 December 2025

(c) To audit whether the measures have been effective by the following means:

  1. Define an audit strategy to monitor the effectiveness of the measures specified in sections (a) and (b).
    Date: Complete
  2. Implement, and keep under continuous review, the audit strategy defined in measure (c)1.
    Date: Following completion of measure (c)1. onwards.

(d) Not to supply water for regulation 4(1) purposes from Bournheath DSR, or not to so supply unless the specified conditions below are satisfied:

  1. Not Applicable

(e) To provide the following information in the time and manner specified below to enable monitoring of progress towards the mitigation of the risks:

  1. Provide a progress report annually.
    Date: by 31 January each year.
  2. Confirm the plan to remove Bournheath service reservoir from supply in the event of an emergency as detailed in step (b)1.
    Date: Complete
  3. Confirm scope of proposed works and timescales for delivery as detailed in step (b)2.
    Date: Complete
  4. Provide revised programme of works, following the selection of a new contactor.
    Date: 15 April 2024
  5. Completion of works to build and commission a new service reservoir at Bournheath, detailed in step (b)3.
    Date: 31 January 2026
  6. Submit the audit strategy for auditing the effectiveness of the measures, as specified in measure (c)1.
    Date: Complete
  7. Submit any revisions of the audit strategy produced under measure (c)2.
    Date: Within 1 month of a revision
  8. Submit a report in the event that any completed measures of this Notice need to be altered in any way, for any reason.
    Date: Ongoing for the duration of this Notice
  9. Submit a satisfactory completion report accompanied by a revised regulation 28(1) report with Board level Director sign-off.
    Date: 31 January 2027

Further Details of this Notice:

  1. Any product or substance used as a result of the requirements in this Notice must comply with regulation 31.
  2. Under regulation 28(6) the Inspectorate, on behalf of the Secretary of State, may by notice served on the Company, revoke or vary this Notice.
  3. Failure by the Company to comply with this Notice may result in enforcement proceedings under section 18 of the Water Industry Act 1991 (as amended).

Signed

Nicholas Adjei
Deputy Chief Inspector, on behalf of the Secretary of State for Environment, Food and Rural Affairs
3 January 2024
Reference: SVT-2022-00003 v2

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