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Severn Trent Water Limited – ZDB10 Derbyshire West Iron

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

Reference: SVT-2024-00016

Version Number: 1

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:

  • YEMO1 Ambergate
  • YEM05 Bamford
  • ZDB10 Derbyshire West

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 6 February 2024, which states that there is or has been a significant risk of supplying water within ZDB10 Derbyshire West Water Quality Zone (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

Wholesomeness of water.

A022 Iron

ZDB10-4614-CO-A022-A022-01A

ZDB10-4614-D-A022-A022-01A

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. Regulatory sampling of water at Bamford Water Treatment Works, Ladyflatte Borehole Pumping Station and at customers’ taps.
    Date: Ongoing for the duration of this Notice
  2. Monitoring, tracking and reporting customer contacts.
    Date: Ongoing for the duration of this Notice
  3. Responding as required to any PCV failure or customer contact in line with company procedures. Carry out an investigation to determine the root cause of the failure and identify any remedial measures required to prevent a recurrence.
    Date: Ongoing for the duration of this Notice
  4. Liaison with local and public health authorities as appropriate.
    Date: Ongoing for the duration of this Notice
  5. Review risk assessments for customer contacts and update regulation 28 reports.
    Date: Ongoing for the duration of this Notice
  6. Conduct maintenance flushing in accordance with company policy.
    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. Identify an appropriate solution with an accompanying programme of work to mitigate the risk of elevated iron within DMA 13/401.
    Date: 30 November 2024
  2. Deliver the identified solution to mitigate the risk of elevated iron within DMA 13/401.
    Date: 31 July 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: 31 December 2024
  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 ZDB10 Derbyshire West , 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. Provide a report identifying the chosen solution to mitigate the risk of elevated iron. Provide a programme of work identifying the steps to be taken to remediate elevated iron within DMA 13/401.
    Date: 31 December 2024
  3. Provide a report detailing the completion of the chosen solution. Include where necessary, construction, installation and commissioning information.
    Date: 31 August 2025
  4. Submit the audit strategy for auditing the effectiveness of the measures, as specified in measure (c)1.
    Date: 31 January 2025
  5. Submit any revisions of the audit strategy produced under measure (c)2.
    Date: Within 1 month of a revision
  6. 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
  7. Submit a satisfactory completion report accompanied by a revised regulation 28(1) report with Board level Director sign-off.
    Date: 31 August 2026

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
11 October 2024
Reference: SVT-2024-00016

 

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