Groundwater surprise in latest crypto outbreak

The outbreak of the stomach bug cryptosporidiosis in Hertfordshire and north London looks set to force a reappraisal of the prevailing view that groundwater supplies are not at risk of contamination by the organism responsible. More than 250 people were affected by the disease and 300,000 households were warned to boil drinking water after cryptosporidium oocysts were found in water from deep boreholes which appears to have been contaminated during a period of record low groundwater levels. The outbreak has prompted the Government to reconvene an expert group on cryptosporidium in water supplies which was disbanded in 1995.

Sign in to continue

Sign in

Trouble signing in?

Reset password: Click here


Call: 020 8267 8120

Take a 30-day trial

  • Join ENDS Report now and pay nothing for your first 30-days.



Prices on request

  • Full access to for 12 months
  • Monthly print issues
  • Clear and accessible guidance on relevant legislation
  • Integration with ENDS Compliance Manager helping you plan ahead and ensure compliance for your organisation
  • Individual or bespoke multi-user packages available

See all benefits

Need to activate your subscription?
Already a subscriber
If you haven't already, activate your subscription here>>
Company Domain Access
If your company or university has a corporate subscription simply register your email address here to gain access