Thames Water Improvement Programmes
Regulation 28(4) Notices
Turbidity TMS 3912 v3
Regulation 28(4) notice for turbidity at all sites. Version 3. Due for completion TBC.
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Netley Mill works TMS-2019-00003 v5
Regulation 28(4) notice for various parameters at Netley Mill works. Version 5. Due for completion 30 April 2026.
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Farnborough Service Reservoir Chain TMS-2021-00002 v4
Regulation 28(4) notice for the Farnborough Service Reservoir chain. Version 3. Due for completion 30 September 2031.
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Interstage Asset Ingress TMS-2021-00003 v6
Regulation 28(4) notice for various parameters at various interstage assets. Version 5. Due for completion 31 August 2027.
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Service Reservoirs Turnover and Chlorine Residual TMS-2021-00004 v5
Regulation 28(4) notice for various service reservoirs. Version 4. Due for completion 31 January 2030.
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Clatford works TMS-2021-00005 v3
Regulation 28(4) notice for Bentazone at Clatford works. Version 3. Completion date: 31 October 2028
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Tanks Inspection and Cleaning TMS-2022-00001 v4
Regulation 28(4) notice for inspection and cleaning of tanks. Version 3. Due for completion TBC.
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Epping Forest TMS-2022-00003 v3
Regulation 28(4) notice for parameters in the zone. Version 3. Due for completion 31 May 2030.
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West Wickham Water Treatment Works, Cryptosporidium and Turbidity Risk TMS-2022-00005 v4
Regulation 28(4) notice for Cryptosporidium and turbidity risks at West Wickham works. Due for completion 30 September 2030.
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Wilmington Water Treatment Works, Cryptosporidium Risk TMS-2022-00006 v3
Regulation 28(4) notice for Cryptosporidium at Wilmington works. Due for completion 30 February 2030.
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Chinnor works turbidity risk TMS-2022-00007 v3
Regulation 28(4) notice for turbidity at Chinnor works. Version 3. Completion date: 31 May 2028.
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Streatham works turbidity risk TMS-2022-00009 v2
Regulation 28(4) notice for turbidity at Streatham works. Completion date: 31 May 2026.
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Ashbury Hill service reservoir Inspect and Clean TMS-2022-00010 v2
Regulation 28(4) notice for Inspecting and cleaning Ashbury Hill SR. Completion date: 30 November 2031.
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Sezincote service reservoir Inspect and Clean TMS-2022-00012 v2
Regulation 28(4) notice for Inspecting and cleaning Sezincote SR. Completion date: 28 February 2032
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Hampton Works Contact Tanks Inspection, Remediation and Cleaning TMS-2023-00001 v2
Regulation 28(4) notice for Hampton Water Treatment Works, Contact Tanks Inspection, Remediation and Cleaning. Completion date: 31 July 2026.
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AMP8 Coppermills Works TMS-2023-00008 v2
Regulation 28(4) notice for risks associated with Cryptosporidium and turbidity. Completion date 30 April 2036.
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AMP8 Ashford Common Works TMS-2023-00009 v3
Regulation 28(4) notice for risks associated with Cryptosporidium and turbidity. Completion date 30 April 2031.
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AMP8 Kempton Park Works TMS-2023-00010 v3
Regulation 28(4) notice for risks associated with Cryptosporidium and turbidity. Completion date 30 April 2035.
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AMP8 Hampton Works TMS-2023-00011 v3
Regulation 28(4) notice for risks associated with Cryptosporidium and turbidity. Completion date 30 April 2031.
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Sheeplands Works Cryptosporidium TMS-2024-00002 v2
Regulation 28(4) notice for risks associated with Cryptosporidium and turbidity. Completion date 31 August 2027.
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Bowsey Service Reservoir Clean and Inspect TMS-2024-00007 v1
Regulation 28(4) notice for risks associated with bacteriological parameters, chlorine, contamination and supply resilience. Completion date 31 December 2032.
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Coppermills Works Conditional Allowance Scheme TMS-2024-00010 v1
A regulation 28(4) notice for risks associated with contamination. Completion date: 29 February 2032.
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Hampton Works Conditional Allowance Scheme TMS-2024-00011 v1
A regulation 28(4) notice for supply and resilience risks at Hampton works. Completion date: 30 April 2028.
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North Cotswolds Supply System Lead TMS-2025-00002 v1
A regulation 28(4) notice for risks associated with lead. Completion date: 30 April 2030.
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Multiple Sites Verification of Disinfection TMS-2025-00003 v1
A regulation 28(4) notice for risks associated with verification of disinfection at multiple sites. Completion date: 30 April 2031.
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Reading Supply System Lead TMS-2025-00005 v1
A regulation 28(4) notice for risks associated with lead within the Reading Supply System. Completion date: 30 April 2031.
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Dorney Taplow Works Cryptosporidium TMS-2025-00007 v1
A regulation 28(4) notice for risks associated with Cryptosporidium at Dorney/Taplow Works. Completion date: 20 November 2025.
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Undertakings
AMP8 PFAS Strategy TMS-2023-00012 v2
Section 19 undertaking for risks associated with PFAS. Completion date: 30 April 2031.
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AMP8 Lead Strategy TMS-2023-00013 v1
Section 19 undertaking for risks associated with lead. Completion date: 30 April 2031.
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Radioactivity
Radioactivity TMS-2021-00006
Radioactivity monitoring exemption notice for indicative dose, radon, and tritium. Expiry date: 31 December 2026.
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