Regulations introduced in 1999 by the Drinking Water Inspectorate (DWI) in England
and Wales required Cryptosporidium risk assessments to be carried out at all water
treatment works. At sites identified as being "at significant risk", implementation of a
rigorous regime of continuous sampling of treated water for Cryptosporidium
monitoring was enforced, with a Regulatory standard of 1 oocyst per 10 litres.
Exemptions to continuous monitoring were allowed through the installation of
approved membrane plant and integrity testing procedures. However, there were
uncertainties over Regulatory requirements and how these matched the practicalities
of integrity testing procedures that are currently available. The paper reviews the
regulatory background to this, and outlines a program of work that was carried
out to provide a unified approach to integrity testing that can be used at a site-specific
level to help satisfy United Kingdom Regulatory requirements. Includes 2 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 250 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 11 |
| Published : | 03/05/2003 |
