About half the groundwater wells across New Zealand monitored long-term are contaminated with E. coli. The agency Land, Air, Water Aotearoa (LAWA) said that E. coli levels, and those of nitrates, exceeded drinking water standards at a minority of wells. The report drew on data and information from about 1000 wells, not all of which were used for drinking water. Overall most groundwater was “very good quality”.
E. coli detected in almost half of NZ monitored wells
Explore
National Chapters
Local professional, scientific and social benefits and promotion of sustainable groundwater use
Commissions & Networks
Contributing to the science of groundwater and undertaking outreach, education and training
Publications
Information about IAH’s Hydrogeology Journal and books
Education
Resources, materials and links for the general public, students and professionals
