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Water Quality 

Importance of water quality In general the quality of Canterbury's groundwater and surface waters is extremely high. However, industrial, agricultural, and urban ..

Measuring water quality Environment Canterbury has a legal responsibility to monitor the quality of groundwater and surface waters in the region. Find out why ..

Nitrates in water This page explains the problems of too much nitrate appearing in our groundwater, and gives details of Environment Canterbury's ground ..

Groundwater This page is about the groundwater of the Canterbury plains. ..

Fertigation backflow preventers A best practices guide for owners and operators of irrigation systems. ..