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Southern Water Improvement Programmes

Enforcement Orders

Burham SRN-2022-00001 v1

Section 18 final enforcement order and Schedule of Works. Completion date 31 October 2034

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Otterbourne SRN-2022-00008 v1

Section 18 final enforcement order and Schedule of Works. Completion date 31 July 2034

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Testwood SRN-2022-00009 v1

Section 18 final enforcement order and Schedule of Works. Completion date 31 January 2033

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Hardham SRN-2022-00010 v1

Section 18 final enforcement order and Schedule of Works. Completion date 31 January 2032

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Timsbury SRN-2022-00011 v1

Section 18 final enforcement order and Schedule of Works. Completion date 31 October 2026

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Twyford SRN-2022-00012 v1

Section 18 final enforcement order and Schedule of Works. Completion date 30 April 2026

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Yew Hill and West Hill SRN-2024-00013 v1

Section 18 final enforcement order and schedule of works. Completion date 31 March 2027

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Notices

Service reservoirs SRN 3923 v3

Regulation 28(4) notice for all service reservoirs. Completion Date 31 January 2027

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Groundwater HazRev SRN 3926 v6

Regulation 28(4) notice for various parameters at all groundwater treatment works. Completion Date 31 October 2026

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AMP7 Brighton Catchment SRN-2018-00007 v2

Regulation 28(4) notice for nitrate in Brighton Catchment. Completion date: 30 April 2026

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AMP7 Thanet North SRN-2018-00008 v2

Regulation 28(4) notice for nitrate in Thanet North Catchment. Completion date: 30 April 2026

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AMP7 Worthing Catchment SRN-2018-00009 v2

Regulation 28(4) notice for nitrate in Worthing Catchment. Completion date: 30 April 2026

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AMP7 Test and Itchen Groundwater catchment SRN-2018-00010 v2

Regulation 28(4) notice for nitrate in Test and Itchen Catchment. Completion date: 30 April 2026

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AMP7 Patching works SRN-2018-00013 v4

Regulation 28(4) notice for nitrate at Patching Works. Completion date: 31 May 2027

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Sandown works SRN-2018-00020 v6

Regulation 28(4) notice for microbiological parameters, lead, manganese, pesticides, pH and no supply at Sandown WSW. Completion date: 30 April 2027

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AMP7 North Kent Catchment SRN-2018-00029 v2

Regulation 28(4) notice for nitrate in North Kent Catchment. Completion date: 30 April 2026

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AMP7 Thanet Mid-South Catchment SRN-2018-00030 v2

Regulation 28(4) notice for nitrate in Thanet Mid South Catchment. Completion date: 30 April 2026

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AMP7 Patcham works SRN-2018-00032 v5

Regulation 28(4) notice for various parameters at Patcham Water Supply Works . Completion date: 31 March 2027

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AMP7 Brighton Nitrate SRN-2018-00033 v4

Regulation 28(4) notice for increasing levels of source water nitrate at Housedean Water Supply Works, Newmarket B Water Supply Works, and Newmarket C Water Supply Works. Completion date: 31 July 2029.

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AMP7 Thanet supply system SRN-2020-00003 v5

Regulation 28(4) notice for various parameters in Thanet Supply System. Completion date: 31 January 2027

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Hardham Laws Aquifer and Cocking High Water Supply Reservoir SRN-2020-00006 v3

Regulation 28(4) notice for iron at Hardham Laws Aquifer and Cocking Hill WSR. Completion date: 30 November 2024

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Brede and Beauport works SRN-2020-00007 v3

Regulation 28(4) notice for various parameters in Brede and Beauport works. Completion Date: 31 October 2026

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Cooks Castle Shanklin WSR SRN-2022-00004 v2

Regulation 28(4) notice for tank inspection and remedial works at Cooks Castle Shanklin Water Supply Reservoir. Completion date: 31 August 2029

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Perry Hill WSR SRN-2022-00013 v1

Regulation 28(4) notice for tank inspection and remedial works at Perry Hill Water Supply Reservoir. Completion date: 31 August 2029

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Vining Lodsworth WSR and Knightsfield Midhurst WSR SRN-2022-00014 v3

Regulation 28(4) notice for tank inspection and remedial works at Vining Lodsworth and Knightsfield Midhurst Water Supply Reservoirs. Completion date: 31 January 2029

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River Way Andover CT SRN-2022-00015 v2

Regulation 28(4) notice for inspection and remedial works at Andover WSW Contact Tank: Completion date: 31 July 2027

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Whitchurch CT SRN-2023-00001 v2

Regulation 28(4) notice for inspection and remedial works at Whitchurch WSW Contact Tank: Completion date: 31 July 2027

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AMP8 West Sussex Nitrate SRN-2023-00007 v1

Regulation 28(4) notice for nitrate at Madehurst, Patching and Stanhope Lodge Works. Completion date: 31 October 2030

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AMP8 East Sussex Nitrate SRN-2023-00008 v1

Regulation 28(4) notice for nitrate at Mossy Bottom and Patcham Works. Completion date: 31 October 2030

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AMP8 Kent Medway Nitrate SRN-2023-00009 v1

Regulation 28(4) notice for nitrate at Hazells and Northfleet Works. Completion date: 30 April 2031

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AMP8 Kent Thanet Nitrate SRN-2023-00010 v1

Regulation 28(4) notice for nitrate at Martin Gorse, Martin Mill and Dover Road Ringwould Works. Completion date: 30 April 2031

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AMP8 Keycol Nitrate SRN-2023-00014 v1

Regulation 28(4) notice for nitrate at Keycol Works. Completion date: 30 April 2031

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AMP8 Disinfection Resilience Programme, Cryptosporidium SRN-2023-00016 v1

Regulation 28(4) notice for cryptosporidium risk at Twyford, Burpham and Patcham Works. Completion date: 30 April 2031

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AMP8 Disinfection Resilience Programme, Viruses SRN-2023-00017 v1

Regulation 28(4) notice for somatic coliphage risk at Balsdean Works. Completion date: 30 April 2031

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Discolouration SRN-2024-00001 v1

Regulation 28(4) notice for discoloration and consumer acceptability at all water supply zones: Completion date: 31 July 2031

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Dunkirk BPT SRN-2024-00002 v1

Regulation 28(4) notice for remedial works at Dunkirk BPT: Completion date: 31 October 2024

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Network Water Quality and Operating Procedures, Policies and Management SRM-2024-00003 v1

Regulation 28(4) notice for Network Water Quality and Operating Procedures, Policies and Management across the distribution network. Completion Date 30 June 2027

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Burpham CWT SRN-2024-00009 v1

Regulation 28(4) notice for remedial works at Burpham Clean Water Tank: Completion date: 31 October 2024

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Brede Harland Tank SRN-2024-00010 v1

Regulation 28(4) notice for remedial works at Brede Harland Tank at Brede WTW: Completion date: 31 December 2024

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Weirwood Multi Phase SRN-2024-00016 v1

Regulation 28(4) notice for various parameters at Weirwood Forest Row works. Completion date: 31 January 2032

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Undertakings

Chlorine Booster Stations SRN-2019-00003 v1

Section 19 Undertaking for disinfection by-products across the company’s chlorine booster stations. Completion date: 31 March 2026.

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Beauport, Brede, Burham, Hardham, Testwood, and Weirwood works Metaldehyde SRN-2019-00006 v1

Section 19 Undertaking for metaldehyde at Beauport, Brede, Burham, Hardham, Testwood, and Weirwood works. Completion date: 31 March 2025.

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Whole Company Data undertaking SRN-2019-00008 v1

Section 19 Undertaking for data across the company. Completion date: 30 April 2025.

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Customer Database – CIRMS SRN-2023-00002 v1

Section 19 Undertaking for customer database upgrades across the company. Completion date: 28 February 2025

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AMP8 PFAS Strategy SRN-2023-00011 v2

Section 19 Undertaking for risks associated with PFAS. Completion date: 30 April 2031.

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AMP8 Lead Strategy SRN-2023-00012 v1

Section 19 Undertaking for risks associated with lead. Completion date: 30 April 2031.

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Radioactivity

Radioactivity SRN-2021-00003 v1

Radioactivity monitoring exemption notice for indicative dose, radon, and tritium. Expiry date: 31 December 2026.

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