South Staffordshire Water Plc – Seedy Mill AMP7 Upgrade

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

Reference: SST-2018-00003

Version Number: 2

Water undertaker as appointed under section 6 of the Water Industry Act 1991 (as amended): South Staffordshire Water Plc, with registered number 02662742 (hereinafter called ‘the Company’).

Assets Affected:

• TSMPWC – Seedy Mill WTW Combined

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 11 September 2018, which states that there is or has been a significant risk of supplying water from Seedy Mill Water Treatment Works (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
Disinfection by product formation	Disinfection by products	TSMPWC237
Trihalomethane formation	Trihalomethanes	TSMPWC157
Consumer acceptability	Manganese Iron Aluminium	TSMPWC131 TSMPWC113 TSMPWC130

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.

3. 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. Operation of Seedy Mill WTW in accordance with Company policy, procedures and to internally agreed process parameters.
   Date: Ongoing for the duration of this Notice
2. Proactive management of Seedy Mill WTW and network to minimise formation of disinfection by-products
   Date: Ongoing for the duration of this Notice
3. Ongoing monitoring of regulatory and operational sample results, on line data including disinfectant levels. Enhanced monitoring for disinfection by-products in the network with trigger values.
   Date: Ongoing for the duration of this Notice
4. Monitor and track trends for customer acceptability contacts.
   Date: Ongoing for the duration of this Notice
5. Optimise the treatment processes to improve removal of organic carbon and to minimise concentrations of manganese, iron and aluminium entering the supply network.
   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. Confirm appropriateness of identified solution
   Date: Complete
2. Complete the planning, design and procurement arrangements for the construction of an additional filtration stage or agreed solution
   Date: Complete
3. Complete the construction, installation and commissioning of an additional filtration stage or agreed solution
   Date: Complete
4. Confirm need and if appropriate the arrangements for refurbishment of the existing clarification and filtration stages at Seedy Mill WTW
   Date: 31 March 2024

(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 Seedy Mill Water Treatment Works, 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. Completion of the evaluation of the existing treatment processes.
   Date: Complete
3. Identification of the preferred treatment processes including catchment, treatment and network management.
   Date: Complete
4. Confirm the completion of the construction, installation and commissioning of an additional filtration stage or agreed solution
   Date: Complete
5. Report on the need and if appropriate the arrangements for refurbishment of the existing clarification and filtration stages at Seedy Mill WTW
   Date: 30 April 2024
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: 30 April 2024

Further Details of this Notice:

4. Any product or substance used as a result of the requirements in this Notice must comply with regulation 31.
5. 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.
6. 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
10 November 2023
Reference: SST-2018-00003 V2