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Severn Trent Water Limited – EPPERSTONE BPS

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

Reference: SVT-2018-00015

Version Number: 3

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:

  • Epperstone WTW (T0163)
  • Control Groups: Oxton (ZNT08)
  • Water Accountability Zones: Nottinghamshire East (EM11), Nottingham Central (EM10), Newark (EM18)

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 03 July 2018 , which states that there is or has been a significant risk of supplying water from Epperstone BPS (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

Elevated concentrations of nitrate in the raw water 

Nitrate

T0163-264-T-A013C-A012-09J

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. Sample monitoring; weekly at the final water regulatory compliance point and monthly at the raw water sampling points.
    Date: Ongoing for the duration of this Notice
  2. Continue to improve competency of operational staff, in particular regarding the identification and management of risk relating to drinking water quality.
    Date: Ongoing for the duration of this Notice
  3. Continue to operate existing treatment systems to optimise performance.
    Date: Ongoing for the duration of this Notice
  4. Regularly appraise risk.
    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. Complete feasibility study of short-term mitigation for direct fed customers.
    Date: 15 October 2023
  2. Confirm proposed short-term mitigations and timescales.
    Date: 15 December 2023
  3. Complete feasibility study of the proposed blending solution in light of proposed licence capping at this site.
    Date: 15 January 2026
  4. Confirm plans for the future of Epperstone BPS.
    Date: 15 March 2026
  5. Confirm dates for decommissioning of site or commencement of blending solution.
    Date: 15 May 2026

(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 EPPERSTONE BPS, 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. Report the findings from the feasibility study of the short-term mitigation for direct fed customers from Epperstone WTW.
    Date: 15 November 23
  3. Confirm the proposed short-term mitigations for Epperstone BPS and timescales for completion.
    Date: 15 January 2024
  4. Report the findings from the feasibility study of the proposed blending solution in light of proposed licence capping at this site.
    Date: 15 February 2026
  5. Confirm the plans for the future of Epperstone BPS.
    Date: 15 April 2026
  6. Confirm dates for decommissioning of the site or commencement of blending solution.
    Date: 15 June 2026
  7. Submit the audit strategy for auditing the effectiveness of the measures, as specified in measure (c)1.
    Date: Complete
  8. Submit any revisions of the audit strategy produced under measure (c)2.
    Date: Within 1 month of a revision
  9. 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
  10. Submit a satisfactory completion report accompanied by a revised regulation 28(1) report with Board level Director sign-off.
    Date: 15 June 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
28 July 2023
Reference: SVT-2018-00015 v3

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