HC Deb 09 December 1987 vol 124 cc176-8W
Mr. Allan Roberts

To ask the Secretary of State for the Environment what is the number of derogations currently in force, issued by his Department, in respect of nitrate and nitrite levels above 50mg/1; and if he will list those areas, geographically and by water authority area, for which these derogations are in force.

Mr. Moynihan

Derogations have been given for 47 public water supplies where nitrate levels exceed 50mg/1, and for three supplies where nitrite levels exceed 0.1 mg/1. The Chief Medical Officer has advised that there is no danger lo public health from these supplies. The water authority areas, water undertakers and geographical areas served by the supplies are given in the following table.

Nitrate Derogations



  • Cambridge Water Company
    • Parts of Huntingdon and South Cambridgeshire Districts
  • Anglian Water Authority
    • Dersingham and Snettisham
    • Docking
    • Heacham and Hunstanton
    • Moulton and Kennet
    • Wisbech
    • Ha bough—part of Lincolnshire
    • Aswarby—Saltersford—part of Lincolnshire
    • Scunt horpe
    • Binbrook—part of Lincolnshire
    • Bully Hill—Barnoldby—part of Lincolnshire
    • Bully Hill—Otby—part of Lincolnshire
    • Clay Hill—Drove Lane, Sleaford
    • Sleaford
    • Potterhanworth—part of Lincolnshire
    • Saltersford
    • Waneham Bridge—Saltersford
    • Bucklesham—part of Ipswich
    • Ely and Littleport
    • Habrough—Covenham, part of Cleethorpes
    • Bowthorpe, part of Norwich
    • Heigham—Thorpe part of Norwich
    • Otby
    • Otby—Waddingham

Severn- Trent

  • Severn-Trent Water Authority
  • Parts of Leamington, Kenilworth, Warwick and Stratford District Council
  • Parts of Rutland District Council
  • Parts of South Derbyshire District Council
  • Parts of Newark and Ashfield District Council
  • Part of Stourbridge, Dudley Metropolitan Borough Council (Coalbournbrook Source)
  • Part of Wychavon District Council area
  • Part of Stourbridge Dudley Metropolitan Borough Council (Millmeadow source)
  • Parts of Wychavon District Council
  • Malvern Hills and Wyre Forest District Council
  • Parts of Wrekin District Council (Lilleshall source)
  • Parts of Worksop, Bassetlaw District Council
  • Parts of Worksop and Mansfield Woodhouse
  • Part of South Shropshire District Council
  • Part of Wrekin District Council (Puleston Bridge source)
  • Parts of Bridgnorth and Wrekin District Council (Shifnal source)
  • Bromley Lane area of Dudley Metropolitan Borough Council
  • Parts of Newark District Council (Farnsfield source)
  • Parts of Nottingham City Council area primarily Hucknall

South Staffs Waterworks Company

  • Parts of Lichfield District Council Sutton Coldfield 178 area
  • North Warwickshire County Council and Walsale Metropolitan area
  • Parts of Kingswinford, Pensnett and Brierley Hill Dudley Metropolitan area
  • Parts of Lichfield and Whittington, Lichfield District Council


  • Lee Valley Water Company Part of Luton


  • Area north east of Ripon North Yorkshire

Nitrite Derogations



  • Essex Water Company
    • Part of London Borough of Redbridge (Seven Kings Well)
    • Part of London Borough of Redbridge (Roding Well)


  • South Staffs Waterworks Company
    • Parts of North Warwickshire District Council, Lichfield District Council, South Derbyshire
    • District Council and East Staffordshire District Council