Water

Drinking Water Inspectorate - regulating public water supply
Ech2o - sustainable water consultants
Elemental Solutions - design for sustainable water management
Envirolet - compost toilets
Humanure Handbook - design & build compost toilets
Oasis Design - grey water information & systems
Rain harvesting systems - suppliers of rainwater goods
Waterwise - dedicated to decreasing water consumption
Water Works - water & sewage treatment in Wales
WRAS - Water Regulatory Advisory Scheme