21.   Conduct regular checks on your water quality.

22.   Trees are cut down, more soil washes away, and water quality is affected.

23.   One of the congressional critics, Representative Henry Waxman from California, however, said that the lack of thorough testing made it impossible to gauge water quality accurately.

24.   The Commission is also taking legal action against most other member countries over water quality.

25.   A new award scheme to complement EC guidelines on bathing water quality has been established by the Tidy Britain Group.

26.   It will in future be awarded only to those beaches which meet EC guideline standards for water quality, which are considerably tougher than the mandatory standards.

27.   Among them are problems of air and water quality and waste in rapidly expanding third world cities.

28.   The Drinking Water Inspectorate has published figures showing that the Thames Water area has the worst water quality in the country.

29.   It aims to co-ordinate best practice in areas such as green audits, packaging and waste minimization, water quality and alternatives to animal testing.

30.   Those beaches which benefit from improved sewage treatment systems, such as Hunstanton in Norfolk, are praised for their water quality.