Press Release – Greenpeace Greenpeace is conducting free drop-in water testing in Ashburton today and in Temuka tomorrow, to enable households to check their drinking water for nitrate contamination. Local residents are invited to bring 100mL of their bore water in a clean container … Greenpeace is conducting free drop-in water testing in Ashburton today and in Temuka tomorrow, to enable households to check their drinking water for nitrate contamination. Local residents are invited to bring 100mL of their bore water in a clean container to the Mid Canterbury Community House, 44 Cass St, Ashburton, anytime today between 10am – 2pm. Greenpeace is running the testing event in conjunction with the New Zealand Federation of Freshwater Anglers, and is conducting the testing using a spectrometer machine owned by the federation.