10am - 2pm, Saturday 10th July at Mid Canterbury Community House, 44 Cass St, Ashburton 10am - 2pm, Sunday 11th July at Alpine Energy Community Centre, Fergusson Drive, Temuka Greenpeace is running the testing in conjunction with the Federation of Freshwater Anglers. This is the third and fourth day of testing run by Greenpeace, with previous testing held in May at Dunsandel and Woodend in Canterbury. Results from these earlier testing days can be found here. The major causes of nitrate pollution are a huge increase in dairy cows and synthetic nitrogen fertiliser use since 1990. Greenpeace is supporting calls from medical