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Drinking Water 2000

A report by the Chief Inspector
Drinking Water Inspectorate

Bournemouth and West Hampshire Water PLC

 

Overall Water Quality supplied by Bournemouth and West Hampshire Water in 2000

  • A total of 15,946 tests were carried out by Bournemouth and West Hampshire Water in 2000.

  • Of these tests, 99.91% complied with the Regulations.

 

Company Information  
Amount of Water Supplied: 157 Ml/d
Consumers Supplied: 431,000
Areas of Supply: Dorset, Hampshire, and Wiltshire
Water Composition: 80% from rivers and reservoirs
20% from boreholes and aquifers
Treatment Works: 8
Service Reservoirs: 23
Km of Mains: 2,800
Water Supply Zones: 15

Water Quality in Water Supply Zones, at Treatment Works, and in Service Reservoirs

Water supply zones

  • In general, to be wholesome, water must comply with the standards set out in the Regulations. The Company carried out a total of 9,370 tests on samples taken in its 15 water supply zones. The table below includes only the parameters that breached the standard. All other parameters fully complied with the standards. Parameter meanings can be found at the beginning of this section.

  • The last column indicates the number of failures in zones already covered by legally binding undertakings given by the Company to carry out remedial works to overcome the difficulty in meeting the individual standard.

Parameter

Total samples taken

Samples not meeting the standard

Percentage

Number of failures already covered by undertakings

Total coliforms

1,253

2

0.16

-

Turbidity

256

1

0.39

-

Nitrite

193

6

3.11

-

Iron

258

3

1.16

-

PAH

81

1

1.23

-

Treatment works

Service reservoirs

  • At all of the Company's 23 service reservoirs, coliforms were absent from at least 95% of samples. There were no failures of the standard for faecal coliforms. This is a significant improvement in compliance with microbiological standards at service reservoirs since last year.

Company Audit and Inspection Link to expanded information (web site version)

  • The Company was inspected or audited by DWI or its appointed consultants on six occasions in 2000. Where relevant, report summaries are available in the ‘Business and Technical’ section of DWI’s web site under ‘Audit and Inspection’.

Audit or Inspection

Date

Inspection of work being carried out on the distribution system

January

Service reservoirs and principles of water supply hygiene

March

Investigation of computer systems and associated data management for drinking water quality information appearing on the Public Record

March

Annual assessment of 1999 compliance data

April / May

Audit trails of five samples

October

Service reservoirs, follow-up of recommendations and Cryptosporidium sampling procedures

November

  • A number of recommendations for improvements were made, especially in relation to computer security, data management and Cryptosporidium sampling procedures.

Incidents

  • The Inspectorate regarded none of the events notified by the Company during 2000 as incidents in which drinking water quality demonstrably deteriorated.

Improvement Programmes Carried Out by the Company

  • No remedial programmes were due for full completion during 2000.

Enforcement Action

  • No enforcement action needed to be considered for the Company as a result of the Inspectorate’s work during 2000.
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Drinking Water Inspectorate,
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Telephone : 020 7944 5956 - Facsimile : 020 7944 5969
E-mail: dwi_enquiries@detr.gov.uk

Published 11 July 2001
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