drinking water inspectorate logo - click here to go home
Improvement Programmes
 

List of Current Improvement Programmes

Anglian Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Anglian Water AN 273 Peterborough City West water supply zone Iron 200µg/l Not to exceed 1500µg/l in more than one sample in each calendar year 31/03/2008 31/03/2008
U Anglian Water AN 275/2 Caistor St. Edmunds water treatment works Nitrate 50mg/l <=50mg/l 31/12/2008 31/01/2010
U Anglian Water AN 275/3 Clay Hill water treatment works Nitrate 50mg/l <=50mg/l 31/04/2009 31/05/2010
U Anglian Water AN 275/4 Colney water treatment works Nitrate 50mg/l <=50mg/l 31/10/2008 30/11/2009
U Anglian Water AN 275/5 Congham water treatment works Nitrate 50mg/l <=50mg/l 28/02/2010 31/03/2011
U Anglian Water AN 275/6 Eriswell/Twelve Acre Wood water treatment works Nitrate 50mg/l <=50mg/l 31/12/2009 31/01/2011
U Anglian Water AN 275/7 Fring and Bircham water treatment works Nitrate 50mg/l <=50mg/l 28/02/2010 31/03/2011
U Anglian Water AN 275/8 Gayton water treatment works Nitrate 50mg/l <=50mg/l 28/02/2010   31/03/2011
U Anglian Water AN 275/11 Kings Road (Rushbrooke) water treatment works Nitrate 50mg/l <=50mg/l 30/04/2008  29/05/2009
U Anglian Water AN 275/12 Lower Links water treatment works Nitrate 50mg/l <=50mg/l 30/04/2008  29/05/2009
U Anglian Water AN 275/14 Marham water treatment works Nitrate 50mg/l <=50mg/l 31/12/2007 31/01/2009
U Anglian Water AN 275/15 Moulton water treatment works Nitrate 50mg/l <=50mg/l 30/04/2008 29/05/2009
U Anglian Water AN 275/16 Nunnely Lodge and Barnham water treatment works Nitrate 50mg/l <=50mg/l 30/04/2008 29/05/2009
U Anglian Water AN 275/18 Risby water treatment works Nitrate 50mg/l <=50mg/l 31/01/2008   -
U Anglian Water AN 275/19 Two Mile Bottom water treatment works Nitrate 50mg/l <=50mg/l 31/12/2007 31/01/2009
U Anglian Water AN 276/1 Ordsall Road water treatment works Nitrate 50mg/l <=50mg/l 31/12/2008 31/01/2010
U Anglian Water AN 276/2 Whitton water treatment works Nitrate 50mg/l <=50mg/l 31/12/2009 31/01/2011
U Anglian Water AN277/1 Wighton water treatment works Nitrate 50mg/l <=50mg/l 31/12/2008 31/1/2010
U Anglian Water AN277/2 Clay Hill water treatment works Nitrate 50mg/l <=50mg/l 30/4/2009 31/5/2010
U Anglian Water AN277/3 Fring and Bircham water treatment works Nitrate 50mg/l <=50mg/l 28/2/2010 31/3/2011
U Anglian Water AN277/4 Gayton water treatment works Nitrate 50mg/l <=50mg/l 28/02/2010 31/3/2011
U Anglian Water AN277/5 Lower Links water treatment works Nitrate 50mg/l <=50mg/l 30/4/2008 20/05/2009
U Anglian Water AN277/6 Ordsall Road (Retford) water treatment works Nitrate 50mg/l <=50mg/l 31/12/2008 31/1/2010
U Anglian Water AN277/7 Riddlesworth water treatment works Nitrate 50mg/l <=50mg/l 31/7/2007 31/8/2008
U Anglian Water AN278/1 Ordsall Road water treatment works Nitrate 50mg/l <=50mg/l 31/12/2008 31/1/2010
U Anglian Water AN278/2 Whitton water treatment works Nitrate 50mg/l <=50mg/l 31/12/2009 31/1/2011

Bristol Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Bristol Water BR 020/2 Rowberrow and Banwell water treatment Works Manganese, taste & odour, arsenic Mn: 50µg/l
T&O:3 dilution number at 25 oC
As: 10µg/l		 Mn: <=50µg/l
Taste &Odour:not >3 dilution number at 25 oC
As:<=10µg/l		 30/09/2007 30/05/2008
U Bristol Water BR 023 Chase, Brent Knoll & Victoria Service Reservoirs and Cooks Corner Pumping Station Taste & odour 3 dilution number at 25 oC not >3 dilution number at 25 oC 31/03/2007 30/04/2008
U Bristol Water BR 025/1 Various  Iron & Manganese Fe: 200µg/l Mn:50µg/l Fe: <=200µg/l Mn:<=50µg/l 31/03/2010 30/04/2011
U Bristol Water BR 025/2 Various Iron & Manganese Fe: 200µg/l Mn:50µg/l Fe: <=200µg/l Mn:<=50µg/l 31/03/2008 30/04/2009
  Bristol Water BR 027 Cheddar water treatment Works Manganese, taste & odour, arsenic Mn: 50µg/l
T&O:3 dilution number at 25 oC
As: 10µg/l		 Mn: <=50µg/l
Taste &Odour:not >3 dilution number at 25 oC
As:<=10µg/l		 31/10/2008 30/11/2009
  Bristol Water BR 028 Rowberrow and Banwell water treatment Works Manganese, taste & odour, arsenic Mn: 50µg/l
T&O:3 dilution number at 25 oC
As: 10µg/l		 Mn: <=50µg/l
Taste &Odour:not >3 dilution number at 25 oC
As:<=10µg/l		 31/09/2007 31/10/2008

Dwr Cymru Cyfyngedig

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Dwr Cymru Cyfyngedig DC104English
DC104Welsh		 Penybont Water Treatment Works Turbidity 1NTU <=2NTU 31/12/2008 31/01/2010
U Dwr Cymru Cyfyngedig DC106English
DC106Welsh		 Talybont Water Treatment Works Lead, Taste and Odour Pb: 25µg/l
T&O: 3 dilution number at 25oC		 Pb:<= 25µg/l
T&O:<= 3 dilution number at 25oC		 31/12/2009 31/01/2011
U Dwr Cymru Cyfyngedig DC108English
DC108Welsh		 Crai Water Treatment Works Manganese 50µg/l <=50µg/l 31/12/2008 31/01/2010
U Dwr Cymru Cyfyngedig DC109English
DC109Welsh		 Various Iron and/or Manganese and/or aluminium and/or turbidity Fe: 200µg/l
Mn: 50µg/l
Al: 200µg/l
Turbidity: 4NTUs		 Fe: <=500µg/l
Mn: <=125µg/l
Al: <=500µg/l
Turbidity:<=10 NTU (all values not to be exceeded in more than one sample in each calendar year)		 31/03/2010 31/03/2011
U Dwr Cymru Cyfyngedig DC110/2English
DC110/2Welsh		 Bretton Water Treatment Works MCPA, Carbendazim and Benomyl 0.1µg/l <=0.1µg/l 31/03/2008 30/04/2009
U Dwr Cymru Cyfyngedig DC112/1English
DC112/2Welsh		 Court Farm Water Treatment Works Taste and Odour 3  dilution number at 25oC <=3  dilution number at 25oC 31/03/2008 30/04/2009

Essex and Suffolk Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Essex and Suffolk EX026 Distribution system Iron 200µg/l 500µg/l 31/12/2006 31/12/2007

Mid Kent Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Mid Kent MK035 Trosley and Borough Green Water Treatment Works Iron 200µg/l <=200µg/l 31/12/2009 31/01/2011

Northumbrian Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U  Northumbrian Water NO067 Various supply zones  Iron and/or Manganese and/or aluminium and/or turbidity Fe: 200µg/l
Mn: 50µg/l
Al: 200µg/l
Turbidity: 4NTUs		 Fe: <=500µg/l
Mn: <=125µg/l
Al: <=500µg/l
Turbidity:<= 10 NTU (all above not to be exceeded in more than one sample in each calendar year)		 30/11/2008 30/11/2009
U  Northumbrian Water NO068 Various supply zones  Iron and Manganese Fe:200µg/l
Mn:50µg/l		 Fe<=200µg/l
Mn<=50µg/l		 31/03/2010 30/04/2011
A Northumbrian Water NNE004 Warkworth WTW The following pesticides: Isoproturon, Mecoprop and MCPA 0.1µg/l 1µg/l 31/07/2007 31/07/2007

Portsmouth Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Portsmouth Water PT012/3 Maindell water treatment works Nitrate 50mg/l <=50mg/l 31/05/2009 30/06/2010
U Portsmouth Water PT012/4 Northbrook water treatment works Nitrate 50mg/l <=50mg/l 28/02/2009 31/03/2010
U Portsmouth Water PT016 Farlington trunk mains Iron, Aluminium and Manganese Fe: 200µg/l
Mn: 50µg/l
Al: 200µg/l		 Fe<=200µg/l
Mn<= 50µg/l
Al<= 200µg/l		 30/06/2006 31/07/2007
C Portsmouth Water 003 Fishbourne Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/03/2008 30/04/2009
C Portsmouth Water 002 Soberton Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/03/2008 30/04/2009

Severn Trent Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Severn Trent Water ST 132 Sunnyside water treatment works Atrazine 0.1µg/l <=0.1µg/l 31/03/2010 30/04/2011
U Severn Trent Water ST 134 Homesford, Ladyflatte & Sunnyside water treatment works Lead 25µg/l <=25µg/l 31/03/2008 30/04/2009
U Severn Trent Water ST 136 Various Iron and Manganese Fe:200µg/l
Mn:50µg/l		 Fe:<=200µg/l
Mn:<=50µg/l		 31/03/2010 30/04/2011
U Severn Trent Water ST 177/1 Ashley SR system Nitrate 50mg/l <=50mg/l 31/03/2010 30/04/2011
U Severn Trent Water ST 177/3 Bromsberrow SR system Nitrate 50mg/l <=50mg/l 31/03/2009 30/04/2010
U Severn Trent Water ST 177/4 Bromsgrove-Redditch Group system Nitrate 50mg/l <=50mg/l 31/03/2010 30/04/2011
U Severn Trent Water ST 177/5 Cliffe SR system Nitrate 50mg/l <=50mg/l 31/03/2008 30/04/2009
U Severn Trent Water ST 177/6 Diamond Avenue SR system Nitrate 50mg/l <=50mg/l 31/01/2008 28/02/2009
U Severn Trent Water ST 177/7 Elsich Barn SR system Nitrate 50mg/l <=50mg/l 31/03/2008 30/04/2009
U Severn Trent Water ST 177/8 Goldthorn Hill SR system Nitrate 50mg/l <=50mg/l 31/01/2008 28/02/2009
U Severn Trent Water ST 177/9 Hanchurch SR system Nitrate 50mg/l <=50mg/l 31/01/2008 28/02/2009
U Severn Trent Water ST 177/11 Munslow SR system Nitrate 50mg/l <=50mg/l 31/03/2007 30/04/2008
U Severn Trent Water ST 177/12 Papplewick SR system Nitrate 50mg/l <=50mg/l 31/03/2010 30/04/2011
U Severn Trent Water ST 177/13 Sunnyside SR system Nitrate 50mg/l <=50mg/l 31/03/2007 30/04/2008
U Severn Trent Water ST 178 Wildmoor borehold pumping station Hydrogen Ion 10 pH Not lower than 6.3 pH 31/12/2008 31/01/2010
C Severn Trent Water 405 Ladyflatte Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/03/2008 30/04/2009

South East Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U South East Water SE 035 Greatham and Headley Water supply zones Iron 200µg/l <=200µg/l 31/01/2007 28/2/2008

South West Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U South West Water SW507 Distribution System Iron and/or Manganese Fe: 200µg/l Mn: 50µg/l
 Fe: <=500µg/l Mn<=125µg/l 31/12/2009 31/12/2010
U South West Water SW508/1 Tamar Water Treatment Works Manganese and Taste & Odour Mn: 50µg/l
T&O:3 dilution number at 25oC		 Mn<=50µg/l
T&O: <=3 dilution number at 25oC		 31/03/2008 30/04/2009
U South West Water SW508/2 Stithians Water Treatment Works Manganese and Taste & Odour Mn: 50µg/l
T&O:3 dilution number at 25oC		 Mn<=50µg/l
T&O: <=3 dilution number at 25oC		 30/09/2011 31/10/2012
U South West Water SW512 Drift and College Water Treatment Works Taste & Odour 3 dilution number at 25oC 3 dilution number at 25oC 31/03/2008 30/04/2009
U South West Water SW514/1 Avon Water Treatment Works Manganese 50µg/l <=50µg/l 31/03/2010 30/04/2011
U South West Water SW514/2 Wendron Water Treatment Works Manganese 50µg/l <=50µg/l 31/03/2007 30/04/2008
U South West Water SW514/3 Venford Water Treatment Works Manganese 50µg/l <=50µg/l 30/09/2011 31/10/2012
U South West Water SW514/4 Tottiford Water Treatment Works Manganese 50µg/l <=50µg/l 31/03/2011 30/04/2012
U South West Water SW514/6 Lowermoor Water Treatment Works Manganese 50µg/l <=50µg/l 31/03/2007 30/04/2008

Southern

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Southern Water SO 070/1 Gore water treatment works Nitrate 50mg/l <=50mg/l 31/03/2010 30/04/2011
U Southern Water SO 070/2 Niton water treatment works Nitrate and Turbidity 50mg/l
1NTU		 <=50mg/l
<=1NTU		 31/03/2007 30/04/2008
U Southern Water SO 070/3 Tywford water treatment works Nitrate 50mg/l <=50mg/l 31/10/2006 30/11/2007

Thames Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Thames Water TH 348/5 Wilmington water treatment works Nitrate 50mg/l <=50mg/l 30/05/2008 30/06/2009
U Thames Water TH 357 Hornsey water treatment works Bromate 10µg/l <=10µg/l 30/09/2008 31/10/2009

Three Valleys Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Three Valleys Water TV 37/2 Offley Bottom water treatment Nitrate 50mg/l <=50mg/l 31/03/2010 30/04/2011
U Three Valleys Water TV 41 Kensworth Lynch water treatment works Chlorotoluron   0.1µg/l  <=0.1µg/l 31/03/2008 30/04/2009
U Three Valleys Water TV 42 North Mymms water treatment works Bromate 10µg/l <=10µg/l 31/01/2008 N/A
SI Three Valleys Water 130 Hatfield Bromate  10µg/l  N/A 31/03/2008 30/04/2009

Wessex Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Wessex Water WS 107/1 Empool Water Treatment Works Nitrate 50mg/l <=50mg/l 31/12/2009 31/01/2011
U Wessex Water WS 108/1 Clarendon Water Treatment Works Nitrate 50mg/l <=50mg/l 31/03/2007 30/04/2008
U Wessex Water WS 108/5 Fovant 2 Water Treatment Works Nitrate 50mg/l <=50mg/l 31/03/2007 30/04/2008
U Wessex Water WS 108/7 Winterbourne Abbas Water Treatment Works Nitrate 50mg/l <=50mg/l 31/03/20080 30/04/2009
U Wessex Water WS 123/2 Portesham Water Treatment Works Chlorotoluron, MCPA & Atrazine 0.1µg/l <=0.1µg/l 31/03/2008 30/04/2009
U Wessex Water WS 123/3 Ulwell Water Treatment Works Dieldrin 0.03µg/l <=0.03µg/l 31/10/2007 30/11/2008
U Wessex Water WS 127 Maundown Water Treatment Works Taste and Odour 3 dilution number at 25oC <=3 dilution number at 25oC 30/04/2009 30/05/2010
U Wessex Water WS 128     ( replaced WS123/1) Friar Waddon  waer treatment works Chlorotoluron & atrazine 0.1µg/l <=0.1µg/l 31/12/2009 31/1/2010
U Wessex Water WS129/1   (replaced WS108/2) Deans Farm water treatment works Nitrate 50mg/l <=50mg/l 30/10/2009 30/04/2011
U Wessex Water WS129/2   (replaced WS108/4) Eagle Lodge Water Treatment Works Nitrate 50mg/l <=50mg/l 31/10/2009 30/11/2010
U Wessex Water WS129/3  (replaced WS108/7) Winterbourne Abbas Water Treatment Works Nitrate 50mg/l <=50mg/l 30/10/2009 30/11/2010
U Wessex Water WS 131 Broadwood water supply zone Iron 200µg/l <=200µg/l 30/04/2009 30/05/2010
T Wessex Water 153 Devizes Road Turbidity 1NTU <=1NTU 30/09/2007 31/10/2008

Yorkshire Water

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U Yorkshire Water YO 150/2 Rossington Bridge, Hatfield, Hatfield Woodhouse, and Nutwell water treatment works Pesticides and Nitrates Total Pesticides:0.5µg/l
Individual Pesticides:0.1µg/l
Nitrate: 50mg/l		 TP<= 0.5µg/l
IP <=0.1µg/l
NO3<=50mg/l 		31/12/2007   31/01/2009
U Yorkshire Water YO 151 Keldgate water treatment works Nitrate 50mg/l <=50mg/l 31/03/2010   30/04/2011
U Yorkshire Water YO 160/1 Albert water treatment works Colour 20mg/l/Pt/Co scale <=20mg/l/Pt/Co scale 31/03/2009 30/04/2010
U Yorkshire Water YO 160/2 Ewden water treatment works Colour 20mg/l/Pt/Co scale <=20mg/l/Pt/Co scale 31/03/2010 30/04/2011
U Yorkshire Water YO 160/3 Graincliffe water treatment works Colour 20mg/l/Pt/Co scale <=20mg/l/Pt/Co scale 31/12/2010 31/01/2012
U Yorkshire Water YO 160/5 Rusby Wood water treatment works Colour 20mg/l/Pt/Co scale <=20mg/l/Pt/Co scale 31/03/2010 30/04/2011
U Yorkshire Water YO 165/1 Eccup water treatment works Manganese 50µg/l <=50µg/l 31/03/2010 30/04/2011
U Yorkshire Water YO 165/2 Eggborough water treatment works Iron and Manganese Fe:200µg/l     Mn: 50µg/l Fe<=200µg/l Mn<=50µg/l 31/03/2010 30/04/2011
U Yorkshire Water YO 165/3 Marton-cum-Grafton water treatment works Iron and Manganese Fe:200µg/l     Mn: 50µg/l Fe<=200µg/l Mn<=50µg/l 31/03/2010 30/04/2011
U Yorkshire Water YO 165/4 Studforth water treatment works Iron and Manganese Fe:200µg/l     Mn: 50µg/l Fe<=200µg/l Mn<=50µg/l 31/03/2010 30/04/2011
U Yorkshire YO 170 Halifax, Wakefield, and Huddersfield water supply zones Hydrogen Ion (pH) 10pH <=10pH 31/03/2010 30/04/2011
U Yorkshire YO 172 Distribution system Iron and/or Manganese and/or Turbidity and/or Aluminium Fe:200µg/l     Mn: 50µg/l
Al: 200µg/l
Turbidity: 4NTU		 Fe<=500µg/l Mn<=125µg/l
Al: 500µg/l  
Turbidity<=10NTU		 31/03/2009 31/03/2010
U Yorkshire YO 174/1 Rusby Wood water treatment works Colour 20mg/l/Pt/Co scale <=20mg/l/Pt/Co scale 31/03/2009 30/04/2010
U Yorkshire YO 174/2 Albert water treatment works Colour 20mg/l/Pt/Co scale <=20mg/l/Pt/Co scale 31/03/2010 30/04/2011
U Yorkshire YO 174/3 Ewden water treatment works Colour 20mg/l/Pt/Co scale <=20mg/l/Pt/Co scale 31/03/2010 30/04/2011
U Yorkshire YO 174/4 Graincliffe water treatment works Colour 20mg/l/Pt/Co scale <=20mg/l/Pt/Co scale 31/03/2011 30/04/2012
U Yorkshire YO 175/2 Eggborough water treatment works Manganese 50µg/l <=50µg/l 31/08/2006 30/09/2007
U Yorkshire YO 175/3 Marton-Cum-Grafton  water treatment works Manganese 50µg/l <=50µg/l 31/03/2010 30/04/2011
U Yorkshire YO 175/4 Studforth water treatment works Manganese 50µg/l <=50µg/l 31/03/2010 30/04/2011
U Yorkshire YO 175/5 Eccup No.1 water treatment works Manganese 50µg/l <=50µg/l 31/03/2010 30/04/2011
U Yorkshire Water YO 175/6 Thorp Arch water treatment works Manganese 50µg/l <=50µg/l 31/03/2007 30/04/2008

United Utilities

click on "Ref" for pdf version of the acceptance note.
*TYPE: U=Undertaking; A=Authorisation; SI=Statement of Intent; C=Cryptosporidium Scheme; T=Turbidity Scheme
Type

(*)

 Company Ref Location Parameter Current standard Agreed Acceptable Maximum level for duration of programme Completion date of improvement works Closure and sign off date
U United Utilities NW303 Townsend Fold water treatment works Coliforms (Total & Faecal)     03/08/2007 03/02/2008
U United Utilities NW419 Dales water treatment works Coliforms (Total & Faecal)     30/11/2007 N/A
U United Utilities NW417 Lightshaw Water Treatment Works Coliforms (Total)      31/03/2008 30/04/2009
U United Utilities NW308 Godley Water Treatment Works Coliforms (Total)      20/05/2008 20/11/2008
U United Utilities NW311/1 Dee Large Diameter Trunk Mains Manganese 50µg/l <=50µg/l 30/09/2009 31/10/2010
U United Utilities NW311/2 Dee Large Diameter Trunk Mains Manganese 50µg/l <=50µg/l 31/03/2008 30/04/2009
U United Utilities NW311/3 Hodder Large Diameter Trunk Mains Manganese 50µg/l <=50µg/l 30/09/2010 31/10/2011
U United Utilities NW311/4 Hodder Large Diameter Trunk Mains Manganese 50µg/l <=50µg/l 31/12/2009 31/01/2011
U United Utilities NW311/5 LCUS (South) Large Diameter Trunk Mains Iron and Manganese Fe: 200µg/ Mn: 50µg/l Fe<=200µg/l
Mn<=50µg/l		 31/03/2011 30/04/2012
U United Utilities NW311/6 LCUS (South) Large Diameter Trunk Mains Iron and Manganese Fe: 200µg/ Mn: 50µg/l Fe<=200µg/l
Mn<=50µg/l		 31/03/2010 30/04/2011
U United Utilities NW311/7 Manchester Large Diameter Trunk Mains Iron and Manganese Fe: 200µg/ Mn: 50µg/l Fe<=200µg/l
Mn<=50µg/l		 31/03/2014 30/04/2015
U United Utilities NW311/8 Manchester Large Diameter Trunk Mains Iron and Manganese Fe: 200µg/ Mn: 50µg/l Fe<=200µg/l
Mn<=50µg/l		 31/03/2013 30/04/2014
U United Utilities NW311/9 Rivington Large Diameter Trunk Mains Iron and Manganese Fe: 200µg/ Mn: 50µg/l Fe<=200µg/l
Mn<=50µg/l		 31/03/2015 30/04/2016
U United Utilities NW311/10 Rivington Large Diameter Trunk Mains Iron and Manganese Fe: 200µg/ Mn: 50µg/l Fe<=200µg/l
Mn<=50µg/l		 31/03/2014 30/04/2015
U United Utilities NW311/11 Vyrnwy Large Diameter Trunk Mains Iron and Manganese Fe: 200µg/ Mn: 50µg/l Fe<=200µg/l
Mn<=50µg/l		 31/03/2014 30/04/2015
U United Utilities NW311/12 Vyrnwy Large Diameter Trunk Mains Iron Fe: 200µg/ Fe<=200µg/l
 31/03/2013 30/04/2014
U United Utilities NW324 Distribution systems Iron and/or Manganese and/or Turbidity and/or Aluminium Fe:200µg/l     Mn: 50µg/l
Al: 200µg/l
Turbidity: 4NTU		 Fe<=500µg/l Mn<=125µg/l
Al: 500µg/l  
Turbidity<=10NTU (all above not to be exceeded in more than one sample in each calendar year)		 31/07/2009 31/07/2010
U United Utilities NW325 Bowscar Water Treatment Works Nitrate 50mg/l <=50mg/l 31/03/2009 30/04/2010
U United Utilities NW326 Franklaw water treatment works Pesticides Total Pesticides:0.5µg/l
Individual Pesticides:0.1µg/l		 TP<= 0.5µg/l
IP <=0.1µg/l		 30/09/2007 31/10/2008
U United Utilities NW418 Nordvue Water Treatment Works Lead 25µg/l <=25µg/l 30/11/2007 N/A
U United Utilities NW358 Cowm Water Treatment Works Taste and Odour 3 dilution number at 25oC <=3 dilution number at 25oC 30/04/2008 31/05/2009
U United Utilities NW396 Martholme (Accrington) water treatment works, Coliform Bacteria and E.coli 0 Not more than 2 samples per calendar year to contain Coliform bacteria and/or E.coli 30/06/2008 31/07/2009
U United Utilities NW416/1 Coldwell Water Treatment Works Coliform Bacteria and E.coli 0 Not >0 for the duration of the undertaking 31/10/2007 30/11/2008
U United Utilities NW416/2 Cotebrook Water Treatment Works Coliform Bacteria 0 Not >0 for the duration of the undertaking 31/03/2008 30/04/2009
U United Utilities NW416/3 Croft Water Water Treatment Works Coliform Bacteria and E.coli 0 Not >0 for the duration of the undertaking 31/08/2007 30/09/2008
U United Utilities NW416/4 Delamere Water Treatment Works Coliform Bacteria 0 Not >0 for the duration of the undertaking 31/03/2008 30/04/2009
U United Utilities NW416/5 Forest Farm Water Treatment Works Coliform Bacteria 0 Not >0 for the duration of the undertaking 30/11/2007 31/10/2008
U United Utilities NW416/6 Heaton Park Water Treatment Works Coliform Bacteria and E.coli 0 Not >0 for the duration of the undertaking 30/09/2007 31/10/2008
U United Utilities NW416/7 Martholme Water Treatment Works Coliform Bacteria and E.coli 0 Not >0 for the duration of the undertaking 30/06/2008 31/07/2009
U United Utilities NW416/8 Netherley Water Treatment Works Coliform Bacteria 0 Not >0 for the duration of the undertaking 31/03/2007 30/04/2008
U United Utilities NW416/9 Piethorne Water Treatment Works Coliform Bacteria 0 Not >0 for the duration of the undertaking 31/03/2008 30/04/2009
U United Utilities NW416/10 Poaka Beck Water Treatment Works Coliform Bacteria 0 Not >0 for the duration of the undertaking 31/07/2007 31/08/2008
U United Utilities NW416/11 Water Lane Treatment Works Coliform Bacteria 0 Not >0 for the duration of the undertaking 31/03/2008 30/04/2009
U United Utilities NW416/12 Waterhead Water Treatment Works Coliform Bacteria 0 Not >0 for the duration of the undertaking 31/11/2007 31/12/2008
U United Utilities NW416/13 Wickenhall Water Treatment Works Coliform Bacteria 0 Not >0 for the duration of the undertaking 30/03/2008 30/04/2009
U United Utilities NW416/14 Worsthorne Water Treatment Works Coliform Bacteria and E.coli 0 Not >0 for the duration of the undertaking 31/05/2007 31/06/2008
U United Utilities NW400 Simmonds Hill Water Treatment Works Coliform Bacteria     13/04/2007 31/05/2008
U United Utilities NW401 Foxhill Water Treatment Works Iron 200µg/ <=200µg/l
 31/01/2008 28/02/2009
U United Utilities NW404 Oswestry Water Treatment Works Coliform Bacteria     31/10/2006 30/11/2007
C United Utilities 017 Adlington Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 29/02/2008 31/03/2009
C/T United Utilities 006/280 Arnfield/Godley Cryptosporidium / Turbidity 1 oocyst in 10 litres (treatment standard) n/a 31/03/2008 30/04/2009
C United Utilities 010/282 Coldwell Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/10/2007 30/11/2008
C/T United Utilities 018/025/289 Cotebrook /Sandiford Cryptosporidium / Turbidity 1 oocyst in 10 litres (treatment standard) n/a 31/03/2008 30/04/2009
C United Utilities 019 Dale Springs Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 30/11/2007 31/12/2008
C United Utilities 020 Delamere Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/03/2008 30/04/2009
C United Utilities 021 Lightshaw Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/03/2008 30/04/2009
C United Utilities 022 Lowerhouse Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/03/2008 30/04/2009
C United Utilities 023 Netherley Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/03/2007 30/04/2008
C/T United Utilities 012/287 Paddy End Cryptosporidium / Turbidity 1 oocyst in 10 litres (treatment standard) n/a 31/08/2007 30/09/2008
C United Utilities 013 Piethorne Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/03/2008 30/04/2009
C United Utilities 014 Poaka Beck Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/07/2007 31/08/2008
C United Utilities 024 Prenton Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 29/02/2008 31/03/2009
C United Utilities 028 Trawden Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/10/2007 30/11/2008
C United Utilities 015 Wickenhall Cryptosporidium 1 oocyst in 10 litres (treatment standard) n/a 31/01/2008 28/02/2009