Amanda Larson: “High levels of nitrate contamination occurs in drinking water where the source is closest to intensive dairying”

David Williams: “Everything will continue getting worse if councils don’t put money into compliance and enforcement”

Dr Tim Chambers: “biggest priority is to review land use practices”.

Christie: “Beware of mayors who have been overfed big ideas – if Alex Walker’s water roadmap is successful we can be even more like Waimate”

Dr Le Lievre: “It’s a pipe dream to expect we can continue producing the same amount of milk without continuing to damage our environment”

Christie: “The number of cows the BEL Group have in CHB equates to the same as 113,932 people all doing their business on just 2,573 ha.!”

Mike Joy: “The amount of water needed to dilute nitrogen ranged from 433 to 11,110 litres of water per litre of milk”

Gren Christie explains why nitrogen is a problem for those living in CHB and their pets.

The maximum allowable level of nitrate in drinking water should be 11 times lower than current rules allow, a public health specialist says.