Archive:
(for archive/historical purposes, this document has not been updated)Index of Contents:
- Introduction
- Bacteria
- Lead
- Iron and Manganese
- Cryptosporidium
- Drinking Water Quality Incidents
- Determinations in 1999
1. Introduction
The Drinking Water Inspectorate (DWI) checks that water companies supply water that is safe to drink when it reaches your home. This document summarises the results of our checks on Cholderton & District Water Company during 1999 and should be read in conjunction with DWI's "How Good is the Drinking Water?" leaflet which is available here and also from us free of charge from the address at the end of this document.
Cholderton & District Water continues to supply you with drinking water of a high quality. In 1999, all 512 tests (100%) met the standards. This continues the pattern of 1995, 1996 and 1997 and is above the overall figure for England and Wales of 99.82%.
Although the 1999 results are good, we know that there are some matters of everyday concern to consumers. These are detailed below.
2. Bacteria
No bacteria have been detected in the water leaving the water treatment works, or the service reservoir or in samples taken at consumers' taps.
3. Lead
The Company has never used lead piping and lead is not considered to be a problem in the Company's area of supply.
The Drinking Water Inspectorate advises consumers living in properties with lead pipes to seek advice from their water company. A DWI leaflet about lead in drinking water is also available here and from us free of charge from the address at the end of this document.
4. Iron and Manganese
These parameters provide a good indication of the overall condition of the mains used to distribute drinking water through the region. No samples have failed these standards since 1990, when the current Regulations began.
5. Cryptosporidium
Cryptosporidium is a tiny micro-organism that can sometimes cause a form of diarrhoea called cryptosporidiosis. Due to new regulations water companies are required by law to sample continuously and analyse daily for cryptosporidium in the treated water at their most vulnerable sites. It is an offence if they fail to meet the new treatment standard.
All water companies had to initially conduct risk assessments at their sites to identify if there was any significant risk of contamination. Cholderton & District Water found that there was no risk at either of its two borehole sites.
6. Drinking Water Quality Incidents
No incidents were reported by the Company to the Inspectorate during 1999.
7. Determinations in 1999
Parameter
Total
Contravening PCV No % Coliforms 12 0 0.0 Faecal coliforms 12 0 0.0 Colour 4 0 0.0 Turbidity 13 0 0.0 Odour 1 0 0.0 Taste 1 0 0.0 Hydrogen ion 13 0 0.0 Nitrate 12 0 0.0 Nitrite 12 0 0.0 Aluminium 4 0 0.0 Iron 5 0 0.0 Manganese 5 0 0.0 Lead 1 0 0.0 PAH 2 0 0.0 Trihalomethanes 1 0 0.0 Total pesticides 12 0 0.0 Other pesticides 72 0 0.0 All others 118 0 0.0 Total 300 0 0.0
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Drinking Water Inspectorate,
Floor 2/A1, Ashdown House, 123 Victoria Street, London, SW1E 6DE
Telephone : 020 7944 5956 - Facsimile : 020 7944 5969
E-mail: dwi_enquiries@detr.gov.uk
Published 12 July 2000 / Updated 11 July 2001
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