Southern Water Services Limited – Ground Water Treatment Works HazRev
Notice nder regulation 28(4) of the Water Supply (Water Quality) Regulations 2016 (as amended)
Reference: SRN3926
Version Number: 7
Water undertaker as appointed under section 6 of the Water Industry Act 1991 (as amended): Southern Water Services Limited, with registered number 02366670 (hereinafter called ‘the Company’).
Assets Affected:
- All groundwater treatment works in the Southern Water supply area.
Details of this Notice:
- 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 17 October 2019, which states that there is or has been a significant risk of supplying water from Ground Water Treatment Works (and associated assets as applicable) that could constitute a potential danger to human health or could be unwholesome.
- 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 |
|---|---|---|
Pathogenic bacteria ingress route and failure of treatment process | E. coli | For example: 43790 |
Pathogenic bacteria ingress route and failure of treatment process | Enterococci | For example: 43791 |
Pathogenic Protozoa breakthrough presenting risk to public health | For Example: Cryptosporidium | For example: 43786 |
Increasing nitrate in source waters | Nitrate | For example: 43811 |
Insufficient water supply to downstream consumers | No Supply | For example: 43845, 43846, 43847 |
Failure of treatment poses risk to wholesomeness | Lead | For example: 43822 |
Failure of treatment poses risk to wholesomeness | Hydrocarbons e.g. PAH | For example: 43839 |
Discolouration in downstream network | For example: Manganese, Iron | For example: 43829, 43828 |
Failure of treatment poses risk to wholesomeness | Other chemical public health | For example: 43844 |
Compromised disinfection process | Turbidity | For example: 70083 |
Treatment by-products | Tetrachloromethane | For example: 43832 |
Failure of treatment poses risk to wholesomeness | Pesticides (e.g. Aldrin) | For example: 43806 |
Failure of treatment poses risk to wholesomeness | Taste | For example: 43837 |
Failure of treatment poses risk to wholesomeness | Odour | For example: 43838 |
- 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:
- Ensure all water quality related, scheduled operational and maintenance tasks are carried out at the current prescribed schedule.
Date: Ongoing for the duration of this Notice - Ensure that any new risk identified is assessed in accordance with the drinking water safety plan methodology.
Date: Ongoing for the duration of this Notice - Ensure that treatment works start-up protocols are followed when restarting each site.
Date: Ongoing for the duration of this Notice - Ensure that the existing site specific disinfection policies are annually reviewed and kept up to date with existing alarm and shutdown levels.
Date: Ongoing for the duration of this Notice - Ensure the treatment works control and shutdown systems are operational and that all monitors are calibrated at the predefined frequencies.
Date: Ongoing for the duration of this Notice - Continue to track borehole headworks condition and risk via the borehole headworks database and drinking water safety plan.
Date: Ongoing for the duration of this Notice - Use site specific procedures where appropriate, including manual intervention or run to waste.
Date: Ongoing for the duration of this Notice - Issue advice to consumers, where required, of improperly disinfected water.
Date: Ongoing for the duration of this Notice - Provide bi-monthly updates at transformation meetings on progress of actions to include predicted float, actions Completed to date and any major changes in delivery.
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:
- Carryout mitigation of regulatory risk statements as identified in Appendix A:
a) Completion of all Phase 1 actions as detailed in appendix A.
Date: Complete
b) Completion of all Phase 2 actions as detailed in appendix A.
Date: Complete
c) Commission all Phase 1 and Phase 2 as detailed in appendix A.
Date: Complete
d) Completion of all Phase 1A, 2A and 3 actions as detailed in appendix A.
Date: Complete
e) Commission all Phase 1A, 2A and 3 actions as detailed in appendix A.
Date: Complete
f) Completion of all Phase 2B, 3A and 4 actions as detailed in appendix A.
Date: Complete
g) Commission all Phase 2B, 3A and 4 actions as detailed in appendix A.
Date: Complete
h) Completion of all Phase 4A, 5 and 6 actions as detailed in appendix A.
Date: Complete
i) Commission all Phases 4A, 5 and 6 actions as detailed in appendix A.
Date: 30 September 2025 - Put in place interim mitigation for Lower risk severity regulatory risk statements as identified as Phase 6.
Date: Complete - Provide confirmation of dates for completion of solutions for Lower risk severity regulatory risk statements as identified as Phase 6.
Date: Complete
(c) To audit whether the measures have been effective by the following means:
- Define an audit strategy to monitor the effectiveness of the measures specified in sections (a) and (b). To include confirmation of works completion at each Phase, an annual audit of operator and maintenance tasks Completed at each works
Date: Complete - 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 Groundwater treatment works, or not to so supply unless the specified conditions below are satisfied:
- 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:
- Provide a progress report annually.
Date: by 31 January each year. - Provide a report detailing interim mitigation in place for Lower risk severity regulatory risk statements (Phase 6) as specified in (b)2.
Date: Complete - Provide a report confirming the dates of completion for solutions for Lower risk severity regulatory risk statements (Phase 6) as specified in (b)3.
Date: Complete - Provide a report confirming completion of all Phase 1 and 2 actions.
Date: Complete - Provide a report confirming commissioning of all Phase 1 and 2 actions.
Date: Complete - Provide a report confirming completion of all Phase 1A, 2A and 3 actions.
Date: Complete - Provide a report confirming commissioning of all Phase 1A, 2A and 3 actions.
Date: Complete - Provide a report confirming completion of all Phase 2B, 3A and 4 actions.
Date: Complete - Provide a report confirming commissioning of all Phase 2B, 3A and 4 actions.
Date: Complete - Provide a report confirming completion of all Phase 4A, 5 and 6 actions.
Date: Complete - Provide a report confirming commissioning of all Phase 4A, 5 and 6 actions.
Date: 31 October 2025 - Submit the audit strategy for auditing the effectiveness of the measures, as specified in measure (c)1.
Date: Complete - Submit any revisions of the audit strategy produced under measure (c)2.
Date: Within 1 month of a revision - 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 - Submit a satisfactory completion report accompanied by a revised regulation 28(1) report with Board level Director sign-off.
Date: 31 October 2026
Further Details of this Notice:
- Any product or substance used as a result of the requirements in this Notice must comply with regulation 31.
- 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.
- 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
Nick Adjei
Deputy Chief Inspector, on behalf of the Secretary of State for Environment, Food and Rural Affairs
31 July 2025
Reference: SRN3926 v7
Appendix A – Company Assets, Risks and Delivery Dates Covered by this Notice.
Unique ID | Site | Risk Name | Hazard | Phase | Notice Dates | Commissioning Dates |
|---|---|---|---|---|---|---|
|
SE0001 |
Balsdean Rottingdean WSW |
Balsdean WSW – Obsolete Chlorinators |
Insufficient water supply – >12 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0006 |
Balsdean Rottingdean WSW |
Balsdean WSW – Emergency generator |
Insufficient water supply – >12 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HS0081a |
Barton Stacey WSW |
Barton Stacey WSW – BH2 High Turbidity |
Insufficient water supply – >12 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0026 |
Bottom Pond WSW |
Bottom Pond WSW – Old Chlorinators |
Insufficient water supply – 3-6 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
NEW-22 |
Broadwater WSW |
Broadwater WSW – BH 1 OOS |
Insufficient water supply – >12 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0033-2 |
Broadwater WSW |
Broadwater WSW – Raw Water to Supply |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
NEW-28 |
Broadwater WSW |
Broadwater WSW – Unsealed shaft |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
NEW-33 |
Broadwater WSW |
Broadwater WSW – Building Condition |
Insufficient water supply – 3-6 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW-BRPH002 |
Burpham WSW |
Burpham WSW – Warningcamp contamination |
Other Chemical – public health |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0098-1 |
Burpham WSW |
Burpham WSW – Amazon DP gauges |
Pathogenic protozoa (e.g. Cryptosporidium) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0056-2 |
Eastling WSW |
Eastling WSW – SEW Transfer Dead-leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0081 |
FLEMINGS ROAD WOODNESBOROUGH WSW |
Flemings WSW – Water quality deterioration |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HN0012 |
Ibthorpe WSW |
Ibthorpe WSW – UV Plant Replacement |
Pathogenic protozoa (e.g. Cryptosporidium) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HN0063 |
Ibthorpe WSW |
Ibthorpe WSW – Contact main bypass |
Microbiological |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0274 |
London Road Strood WSW |
London Road WSW – Obsolete chlorinators |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0276 |
London Road Strood WSW |
London Road WSW – Chlorine dosing control |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM-lon002 |
London Road Strood WSW |
London Road WSW – Dechlorination system |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0085 |
Lower Bush Cuxton WSW |
Lower Bush Cuxton WSW – Unreliable OSEC plant |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM-LBC002 |
Lower Bush Cuxton WSW |
Lower Bush Cuxton WSW – Headplate |
Pathogenic protozoa (e.g. Cryptosporidium) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0188 |
Luddesdown WSW |
Luddesdown WSW – Run to waste facility |
Insufficient water supply – 3-6 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0234 |
Luddesdown WSW |
Luddesdown WSW – On-site cess pit |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0235 |
Luddesdown WSW |
Luddesdown WSW – On-site cess pit |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0236 |
Luddesdown WSW |
Luddesdown WSW – Cobham distribution main dead-leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0237 |
Luddesdown WSW |
Luddesdown WSW – OOS booster pump dead-legs |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0238 |
Luddesdown WSW |
Luddesdown WSW – Greensand pre-disinfection and Pitfield treated water connection |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0251 |
Luton WSW |
Luton WSW – Pickle Wells |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0036 |
Matts Hill Hartlip WSW |
Matts Hill WSW – Treatment Bypass |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE-Mile005 |
Mile Oak WSW |
Mile Oak WSW – Dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0081 |
Newmarket Lewes B WSW |
Newmarket B WSW – OSEC Plant fails |
Water supply interruption |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0084-2 |
Newmarket Lewes B WSW |
Newmarket B WSW – WQSD issues at restart |
Water supply interruption |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0206-1 |
Newmarket Lewes C WSW |
Newmarket C&D WSW – Borehole 1D flooding |
Pathogenic protozoa (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0094-2 |
Newmarket Lewes C WSW |
Newmarket C&D WSW – Chlorate risk |
Treatment Byproducts (e.g. THMs) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0054 |
Northbrook Worthing WSW |
Northbrook WSW – Site Bypass |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0107-2 |
Northbrook Worthing WSW |
Northbrook WSW – OSEC Plant |
Insufficient water supply – 3-6 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0106-1 |
Northbrook Worthing WSW |
Northbrook WSW – UV Below ground bypass |
Pathogenic protozoa (e.g. Cryptosporidium) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0106-2 |
Northbrook Worthing WSW |
Northbrook WSW – UV Below ground bypass |
Pathogenic protozoa (e.g. Cryptosporidium) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SWNORW-002-1 |
Northbrook Worthing WSW |
Northbrook WSW – GAC Bypass |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SWNORW-002-2 |
Northbrook Worthing WSW |
Northbrook WSW – GAC Bypass |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0055-2 |
Northbrook Worthing WSW |
Northbrook WSW – No Run-to-Waste |
Insufficient water supply -<3 h |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
Patcham WSW |
Patcham WSW – Well A |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete | |
|
SW-PTG001-3 |
Patching WSW |
Patching WSW – BH3 sanitary seal |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
River Way Andover WSW |
River Way Andover WSW- Dead leg No1 |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete | |
|
KT0152 |
Selling WSW |
Selling WSW – Site Communication |
Insufficient water supply – >12 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0107 |
Selling WSW |
Selling WSW – Surge vessel |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0151 |
Selling WSW |
Selling WSW – Valve control |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
Sompting WSW |
Sompting WSW – BH headworks Chamber |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete | |
|
SE0146-1 |
Sompting WSW |
Sompting WSW – Nitrate Removal control |
Nitrate |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0146-2 |
Sompting WSW |
Sompting WSW – Nitrate Removal control |
Nitrate |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SO0159 |
Southover WSW |
Southover WSW – BH3 head plate and chamber |
Insufficient water supply – >12 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0150 |
Southover WSW |
Southover WSW – Obsolete chlorinators |
Insufficient water supply – >12 h outage |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0062 |
Stanhope Lodge Worthing WSW |
Stanhope Lodge WSW – Obsolete chlorinators |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0153 |
Sutton WSW |
Sutton WSW – Treatment bypass |
Pathogenic protozoa (e.g. Cryptosporidium) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HS0257 |
Twyford WSW |
Twyford WSW – Abandoned tank |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HS-TWYM001 |
Twyford Moors WSW |
Twyford Moors WSW – Redundant contact main |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
1 |
31/03/2022 Complete |
31/12/2022 Complete |
|
NEW-19 |
Broadwater WSW |
Broadwater WSW – Oversized Ortho Dosing Unit |
Lead |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0033 |
Broadwater WSW |
Broadwater WSW – Raw Water to Supply |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
NEW-24 |
Broadwater WSW |
Broadwater WSW – BH 2 OOS |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
NEW-27 |
Broadwater WSW |
Broadwater WSW – Final run to waste |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
NEW-26 |
Broadwater WSW |
Broadwater WSW – Main dose chlorine analysers |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW0001 |
Broadwater WSW |
Broadwater WSW – Chlorination System |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW-BRPH017 |
Burpham WSW |
Burpham WSW – Contact main drainage |
Pathogenic protozoa (e.g. Cryptosporidium) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SW-BRPH016 |
Burpham WSW |
Burpham WSW – Unknown cess-pit condition |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
IW0095 |
Carisbrooke WSW |
Carisbrooke WSW – Site drainage |
Pathogenic protozoa (e.g. Cryptosporidium) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
IW0015-2 |
Carisbrooke WSW |
Carisbrooke WSW – Phosphate POA |
Pathogenic protozoa (e.g. Cryptosporidium) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
IW0082 |
Carisbrooke WSW |
Carisbrooke WSW – Hypo Storage System |
Treatment Byproducts (e.g. THMs) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
IW0016 |
Carisbrooke WSW |
Carisbrooke WSW – SCADA |
Insufficient water supply – >12 hours |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
IW0015 |
Carisbrooke WSW |
Carisbrooke WSW – Phosphate dosing in manual |
Lead |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
IW0115 |
Carisbrooke WSW |
Carisbrooke WSW – BH2 headworks improvements |
Pathogenic protozoa (e.g. Cryptosporidium) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
IW0115-2 |
Carisbrooke WSW |
Carisbrooke WSW – BH1 headworks improvements |
Pathogenic protozoa (e.g. Cryptosporidium) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
IW0013 |
Carisbrooke WSW |
Carisbrooke WSW – Hypochlorite Injection and Monitoring |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KM0310 |
Eastling WSW |
Eastling WSW – Raw water in contact tank |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0185 |
Goldstone Hove WSW |
Goldstone WSW Hydrocarbons risk |
Hydrocarbons |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0024-3 |
Goldstone Hove WSW |
Goldstone WSW – UV treatment and Emergency Amazon Connections |
Cryptosporidium |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SENew007 |
Southover WSW |
Southover WSW – Phosphate POA |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0154 |
Southover WSW |
Southover WSW – Surge Vessel |
Pathogenic protozoa (e.g. E Coli & Enterococci) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0157-1 |
Southover WSW |
Southover WSW – Saline intrusion |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0158 |
Southover WSW |
Southover WSW – Nitrates |
Nitrate |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SENew004-1 |
Southover WSW |
Southover WSW – Generator capacity |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SENew004-2 |
Southover WSW |
Southover WSW – Generator capacity |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0157-2 |
Southover WSW |
Southover WSW – Saline intrusion |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HS0071 |
Twyford WSW |
Twyford WSW – Steam Works Trust hydrocarbons |
Other Chemical – public health |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HS0255 |
Twyford WSW |
Twyford WSW – No Treated Run-to-Waste |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HS0127 |
Twyford WSW |
Twyford WSW – Borehole 3 |
Pathogenic protozoa (e.g. Cryptosporidium) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HS0074 |
Twyford WSW |
Twyford WSW – No raw water run to waste |
Turbidity |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
HS0252-1 |
Twyford WSW |
Twyford WSW – Positioning of Nitrate Analysers 1 |
Nitrate |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0079 |
Wingham WSW |
Wingham WSW – Well headworks |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0066 |
Wingham WSW |
Wingham WSW – Main building |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT-WING001 |
Wingham WSW |
Wingham WSW – ground water contamination |
Other chemical – public health |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0085 |
Wingham WSW |
Wingham WSW – Turbidity management |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0063 |
Wingham WSW |
Wingham WSW – Shaft Subsidence |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
KT0085-1 |
Wingham WSW |
Wingham WSW – Turbidity management |
Insufficient water supply – >12 h outage |
2 |
31/03/2022 Complete |
31/12/2022 Complete |
|
SE0090-2 |
Newmarket Lewes C WSW |
Newmarket C&D WSW – Borehole 1D raw water quality |
Pathogenic protozoa (e.g. E Coli & Enterococci) |
1A |
31/03/2023 Complete |
30/9/2023 Complete |
|
SE0201-2 |
Newmarket Lewes C WSW |
Newmarket C&D WSW – Borehole headworks |
Pathogenic protozoa (e.g. E Coli & Enterococci) |
1A |
31/03/2023 Complete |
30/9/2023 Complete |
|
NEW-18 |
Broadwater WSW |
Broadwater WSW – Final chlorine analyser |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2A |
31/03/2023 Complete |
30/9/2023 Complete |
|
| ||||||
|
SE0069 |
Mile Oak WSW |
Mile Oak WSW – Nitrates |
Nitrate |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
SE0068 |
Mile Oak WSW |
Mile Oak WSW – Chlorate risk |
Treatment Byproducts (e.g. THMs) |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
SE-Mile009 |
Mile Oak WSW |
Mile Oak WSW – Phosphate dosing |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
SE-Mile003-1 |
Mile Oak WSW |
Mile Oak WSW – Old Well |
Pathogenic protozoa (e.g. Cryptosporidium) |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
NEW-40 |
Patcham WSW |
Patcham WSW – Emergency power supply |
Insufficient water supply – >12 h outage |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
NEW-42-1 |
Patcham WSW |
Patcham WSW – Well B |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
NEW-42-2 |
Patcham WSW |
Patcham WSW – Well B |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
NEW-47 |
Patcham WSW |
Patcham WSW – Contact Time |
Insufficient water supply -<3 h |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
NEW-48 |
Patcham WSW |
Patcham WSW – RTW |
Insufficient water supply -<3 h |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
SE0102-2 |
Patcham WSW |
Patcham WSW – Dumb well |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
Patcham WSW |
Patcham WSW- TV and CSD Operation |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
3 |
31/03/2023 Complete |
30/9/2023 Complete | |
|
Patcham WSW |
Patcham WSW – GAC |
Pesticides |
3 |
31/03/2023 Complete |
30/9/2023 Complete | |
|
Patcham WSW |
Patcham WSW – UV treatment and Emergency Amazon Connections |
Pathogenic protozoa (e.g. Cryptosporidium) |
3 |
31/03/2023 Complete |
30/9/2023 Complete | |
|
River Way Andover WSW |
River Way Andover WSW – Borehole 3 sanitary seal |
Pathogenic protozoa (e.g. Cryptosporidium) |
3 |
31/03/2023 Complete |
30/9/2023 Complete | |
|
SE0127 |
Shoreham WSW |
Shoreham WSW – Borehole |
Turbidity |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
SE0164-2 |
Shoreham WSW |
Shoreham WSW – Phosphate Dosing |
Lead |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
SE0133 |
Sompting WSW |
Sompting WSW – Site PLC |
Insufficient water supply -<3 h |
3 |
31/03/2023 Complete |
30/9/2023 Complete |
|
SE0028 |
Goldstone Hove WSW |
Goldstone WSW Contact Main |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2B |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE0036 |
Goldstone Hove WSW |
Goldstone WSW – well shaft |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
2B |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE0143-1 |
Sompting WSW |
Sompting WSW – BH2 debris infill |
Insufficient water supply – >12 h outage |
3A |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE0143-2 |
Sompting WSW |
Sompting WSW – BH2 debris infill |
Insufficient water supply – >12 h outage |
3A |
31/03/2024 Complete |
30/9/2024 Complete |
|
SENew001-1 |
Southover WSW |
Southover WSW – UV disinfection |
Pathogenic protozoa (e.g. Cryptosporidium) |
2B |
31/03/2024 Complete |
31/8/25 |
|
SENew001-2 |
Southover WSW |
Southover WSW – UV disinfection |
Pathogenic protozoa (e.g. Cryptosporidium) |
2B |
31/03/2024 Complete |
31/8/25 |
|
SE0157 |
Southover WSW |
Southover WSW – Crypto |
Insufficient water supply – >12 h outage |
2B |
31/03/2024 Complete |
31/8/25 |
|
SE0130 |
Sompting WSW |
Sompting WSW – Deployable Output Restriction |
Run to waste |
3A |
31/03/2024 Complete |
30/9/25 |
|
SE0138-2 |
Sompting WSW |
Sompting WSW- Ortho-phosphate dosing |
Lead |
3A |
31/03/2024 Complete |
31/5/25 |
|
KT0119 |
Deal Low Level WSW |
Deal WSW – Deal land sale |
Insufficient water supply – >12 h outage |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KT0105 |
Deal Low Level WSW |
Deal WSW – DO restriction |
Insufficient water supply – >12 h outage |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE-Fal003 |
Falmer WSW |
Falmer WSW – Highway drainage risks |
Other Chemical – public health |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE-Fal014-1 |
Falmer WSW |
Falmer WSW – Chlorine analysers |
Insufficient water supply – >12 h outage |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE-Fal002 |
Falmer WSW |
Falmer WSW – Soakaway |
Pathogenic protozoa (e.g. Cryptosporidium) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE-Fal014-2 |
Falmer WSW |
Falmer WSW – Chlorine analysers |
Insufficient water supply – >12 h outage |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE-Fal006 |
Falmer WSW |
Falmer WSW – Amazon filters |
Pathogenic protozoa (e.g. Cryptosporidium) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE-Fal013 |
Falmer WSW |
Falmer WSW – Phosphoric acid dosing point |
Lead |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE0021 |
Falmer WSW |
Falmer WSW – Lack of final RTW |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
HN0086 |
Kingsclere WSW |
Kingsclere WSW – Disinfection Process By-pass – Abandoned contact tank |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
HN0087-2 |
Kingsclere WSW |
Kingsclere WSW – Beacon Hill PU 3 & Kingsclere PU3 |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
HN0088 |
Kingsclere WSW |
Kingsclere WSW – Dead legs – valve 27 |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
IW0027 |
Knighton WSW |
Knighton WSW – Phosphate dosing |
Lead |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
IW-Knig002 |
Knighton WSW |
Knighton WSW – Hypo storage tanks |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
IW0163 |
Knighton WSW |
Knighton WSW – Abandoned pipework |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
IW0098 |
Knighton WSW |
Ashey WSZ – No phosphate dosing when Knighton is off |
Lead |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SN0041 |
Lodsworth WSW |
Lodsworth WSW – UV by-pass |
Pathogenic protozoa (e.g. Cryptosporidium) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SN0182 |
Lodsworth WSW |
Lodsworth WSW – Old BH dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SN0040 |
Lodsworth WSW |
Lodsworth WSW – BH3 |
Pathogenic protozoa (e.g. Cryptosporidium) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0259 |
Luton WSW |
Luton WSW – Phosphate Signal Drift |
Lead |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0295 |
Luton WSW |
Luton WSW – Phosphate dosing control |
Lead |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0256 |
Luton WSW |
Luton WSW – InComplete WQSD system |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0130 |
Luton WSW |
Luton WSW – Capstone Greensand BH1 Sanitary Seal |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0246 |
Luton WSW |
Luton WSW – Capstone Chalk |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0247-2 |
Luton WSW |
Luton WSW – Capstone Discharge Tank Contamination |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0296 |
Luton WSW |
Luton WSW – Luton Well |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0247-4 |
Luton WSW |
Luton WSW – Capstone Discharge Tank Contamination |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0248-1 |
Luton WSW |
Luton WSW – Capstone Septic Tank |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0247-3 |
Luton WSW |
Luton WSW – Capstone Discharge Tank Contamination |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SW0080 |
Madehurst WSW |
Madehurst WSW – Nitrate |
Nitrate |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SW0049-1 |
Madehurst WSW |
Madehurst WSW – Filter Refurbishment. |
Insufficient water supply – >12 h outage |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SW0049-2 |
Madehurst WSW |
Madehurst WSW – Filter Refurbishment. |
Turbidity |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SW0049-3 |
Madehurst WSW |
Madehurst WSW – Filter Refurbishment. |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SW-Made004 |
Madehurst WSW |
Madehurst WSW – No run to waste |
Insufficient water supply – >12 h outage |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SW-Made005 |
Madehurst WSW |
Madehurst WSW – Observation borehole sanitary seal |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0285-1 |
Matts Hill Hartlip WSW |
Matts Hill WSW – Abandoned Connecting Main |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0285-2 |
Matts Hill Hartlip WSW |
Matts Hill WSW – Abandoned Connecting Main |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0285-3 |
Matts Hill Hartlip WSW |
Matts Hill WSW – Abandoned Connecting Main |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0286 |
Matts Hill Hartlip WSW |
Matts Hill WSW – Treated Water Dead-leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KM0287 |
Matts Hill Hartlip WSW |
Matts Hill WSW – Network Transfer Dead-leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KT0161-1 |
Matts Hill Hartlip WSW |
Matts Hill WSW – Dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KT0161-2 |
Matts Hill Hartlip WSW |
Matts Hill WSW – Dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE0208-b |
Newmarket Lewes C WSW |
Newmarket C&D WSW – Hypo bund |
Other Chemical – public health |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE0200 |
Newmarket Lewes C WSW |
Newmarket C WSW – Dead legs |
Pathogenic protozoa (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE0201-4 |
Newmarket Lewes C WSW |
Newmarket C&D WSW – Borehole headworks |
Pathogenic protozoa (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KT0057 |
Sutton WSW |
Sutton WSW – Unvalidated UV reactor |
Pathogenic protozoa (e.g. Cryptosporidium) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
KT0154 |
Sutton WSW |
Sutton WSW – borehole condition |
Insufficient water supply – >12 hours |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
HS0246b |
Twyford Moors WSW |
Twyford Moors WSW – Redundant contact main |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
HS0249 |
Twyford Moors WSW |
Twyford Moors WSW – Twyford Moors Wastewater Pumping Station |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4 |
31/03/2024 Complete |
30/9/2024 Complete |
|
SE0018a |
Falmer WSW |
Falmer WSW – Phosphate dosing |
Lead |
4 |
31/03/2024 Complete |
13/6/25 |
|
KM0252-2 |
Luton WSW |
Luton WSW – Luton Nitrate Monitor |
Nitrate |
4 |
31/03/2024 Complete |
13/6/25 |
|
KM0252-1 |
Luton WSW |
Luton WSW – Luton Nitrate Monitor |
Nitrate |
4 |
31/03/2024 |
13/6/25 |
|
IW0114 |
Knighton WSW |
Knighton WSW – BH1 headworks improvements |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
4A |
31/03/2024 Complete |
30/9/2024 Complete |
|
IW0156 |
Knighton WSW |
Knighton WSW – Leaking RGF vessels |
Insufficient water supply – >12 h outage |
4A |
31/03/2024 Complete |
30/9/2024 Complete |
|
SW0022-2 |
Arundel WSW |
Arundel WSW – old contact main risk |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KM0233 |
Bottom Pond WSW |
Bottom Pond WSW – Contact main dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW0042-1 |
Clapham WSW |
Clapham WSW – Nitrate risk |
Nitrate |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KT0011 |
Dover Road Ringwould WSW |
Dover Road Ringwould WSW – Redundant bypass |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KM0281-1 |
Higham WSW |
Higham WSW – Groundwater contamination |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KM0309-1 |
Highsted WSW |
Highsted WSW – Abandoned Mains |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KM0309-2 |
Highsted WSW |
Highsted WSW – Abandoned Mains |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
NEW-49 |
Housedean WSW |
Housedean WSW- Dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HN0057-2 |
Ibthorpe WSW |
Ibthorpe WSW – Borehole turbidity monitors |
Turbidity |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KT0172 |
Martin Gorse WSW |
Martin Gorse WSW – UV By pass Valve |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KT0028 |
Martin Mill WSW |
Martin Mill WSW – Phosphate Dosing |
Lead |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KT0165 |
Martin Mill WSW |
Martin Mill WSW – Bypass to Distribution |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SE0196 |
Mossy Bottom Shoreham WSW |
Mossy Bottom WSW -Flowmeters |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SE0074-3 |
Mossy Bottom Shoreham WSW |
Mossy Bottom WSW – Nitrate levels |
Nitrate |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KM-Nash001 |
Nashenden Chatham WSW |
Nashenden Chatham WSW – Dead Legs |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SE0187-2 |
Newmarket Lewes B WSW |
Newmarket B WSW – GAC vessels |
Other Chemical – public health |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KM0096-1 |
Northfleet WSW |
Northfleet WSW – Contact Main Leakage |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HN0065-2 |
Overton WSW |
Overton WSW – GAC decommissioning |
Turbidity / Microbiological / Water supply interruptions |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HN0076 |
Overton WSW |
Overton WSW – Turbidity monitoring |
Turbidity |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW-PTG005 |
Patching WSW |
Patching WSW – ortho bund |
Other Chemical – public health |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW0059 |
Patching WSW |
Patching WSW – Contact main valve |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW0060-1 |
Patching WSW |
Patching WSW – 10 inch dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW0061-2 |
Patching WSW |
Patching WSW – 14 inch dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW0060 |
Patching WSW |
Patching WSW – 10 inch dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SN0118-1 |
Rotherfield Midhurst WSW |
Rotherfield WSW – UV bypass |
Pathogenic protozoa (e.g. Cryptosporidium) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SN0200 |
Rotherfield Midhurst WSW |
Rotherfield WSW – Redundant Contact Main |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KT0048 |
Selling WSW |
Selling WSW – Chlorine Installation |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW0104 |
Stanhope Lodge Worthing WSW |
Stanhope Lodge WSW – Below ground bypass |
Pathogenic protozoa (e.g. Cryptosporidium) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SN-STY-003 |
Steyning Upper Beeding WSW |
Steyning – Phosphate dosing point and Cl |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SN0056 |
Steyning Upper Beeding WSW |
Steyning WSW – Nitrates prediction |
Nitrate |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KM0297-1 |
Three Crutches Strood WSW |
Three Crutches Strood WSW – Dead Legs |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KM0297-2 |
Three Crutches Strood WSW |
Three Crutches Strood WSW – Dead Legs |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HS0259 |
Timsbury WSW |
Timsbury WSW – Offsite shaft/boreholes covers |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HS0266-3 |
Totford WSW |
Totford WSW – Contact Main Air Valve Chambers |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HS0266-2 |
Totford WSW |
Totford WSW – Contact Main Air Valve Chambers |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
IW0038-2 |
Ventnor New WSW |
Ventnor WSW – Contact tank overflow backflow |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
IW0038-3 |
Ventnor New WSW |
Ventnor WSW – Contact tank overflow backflow |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HS0082 |
Barton Stacey WSW |
Barton Stacey WSW – BH1 and BH2 |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 |
|
SW0105-1 |
Clapham WSW |
Clapham WSW – Works bypass (below ground) |
Pathogenic protozoa (e.g. Cryptosporidium) |
5 |
31/03/2025 Complete |
30/9/2025 |
|
KM0281-2 |
Higham WSW |
Higham WSW – Groundwater contamination |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 |
|
KT0024-2 |
Martin Gorse WSW |
Martin Gorse WSW – Dead leg |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 |
|
SN0191 |
Rotherfield Midhurst WSW |
Rotherfield WSW – Borehole dead legs |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 |
|
SN0194 |
Rotherfield Midhurst WSW |
Rotherfield WSW – Potential deadleg into network |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 |
|
HS0063-2 |
Timsbury WSW |
Timsbury WSW -Nitrates increasing trend |
Nitrate |
5 |
31/03/2025 Complete |
30/9/2025 |
|
IW0178 |
Ventnor New WSW |
Ventnor WSW – Temporary UV Installation |
Other Chemical – public health |
5 |
31/03/2025 Complete |
30/9/2025 |
|
IW-VENT001 |
Ventnor New WSW |
Ventnor WSW – Unrepresentative Main Dose Chlorine Sample |
Pathogenic bacteria (e.g. E Coli & Enterococci) |
5 |
31/03/2025 Complete |
30/9/2025 |
|
HN0015-2 |
Ibthorpe WSW |
Ibthorpe WSW – DO Constraint. |
Water supply interruption |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HN0060-2 |
Ibthorpe WSW |
Ibthorpe WSW – Borehole condition |
Water supply interruption |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HS0079b |
Barton Stacey WSW |
Barton Stacey WSW – Replacement of annunciator |
Insufficient water supply – 6-12 h outage |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
NEW-17 |
Broadwater WSW |
Broadwater WSW – Oversized UV plant |
Other Chemical – aesthetic |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
KM0258 |
Luton WSW |
Luton WSW – Final Turbidity Mounting |
Insufficient water supply – 3-6 h outage |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HN0078 |
River Way Andover WSW |
River Way Andover WSW – Insufficient GAC EBCT |
Pesticides |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SE0230-1 |
Newmarket Lewes C WSW |
Newmarket C&D WSW – Surge vessel |
Water supply interruption |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SE0230-2 |
Newmarket Lewes C WSW |
Newmarket C&D WSW – Surge vessel |
Water supply interruption |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SE-Fal010 |
Falmer WSW |
Falmer WSW – Emergency power |
Insufficient water supply -<3 h |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HN0082 |
Ibthorpe WSW |
Ibthorpe WSW – Dead-leg Post-Disinfection Sampling |
T+O compounds (aesthetic) |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SO0152-1 |
Southover WSW |
Southover WSW – BH1 head plate |
Insufficient water supply – 3-6 h outage |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW0174 |
Angmering WSW |
Angmering WSW – Unchlorinated motive water |
Insufficient water supply – 3-6 h outage |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW-FIN012-1 |
Findon Road Worthing WSW |
Findon Road WSW – Phosphate dosing point |
Insufficient water supply – 3-6 h outage |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SW-FIN012-2 |
Findon Road Worthing WSW |
Findon Road WSW – Phosphate dosing point |
Insufficient water supply – 3-6 h outage |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
SWNORW-001-1 |
Northbrook Worthing WSW |
Northbrook WSW – BH1 capacity reduction |
Insufficient water supply – 3-6 h outage |
6 |
31/03/2025 Complete |
30/9/2025 Complete |
|
HS0086c |
Twyford Moors WSW |
Twyford Moors WSW – Turbidity Risk |
Insufficient water supply – 3-6 h outage |
6 |
31/03/2025 Complete |
30/9/2025 |
|
HS0086d |
Twyford Moors WSW |
Twyford Moors WSW – Turbidity Risk |
Insufficient water supply – 3-6 h outage |
6 |
31/03/2025 Complete |
30/9/2025 |
|
SE0155 |
Southover WSW |
Southover WSW – Phosphate Dosing |
Health and Safety |
6 |
31/03/2025 Complete |
30/9/2025 |