A recently released report by NIWA has said that a third of the monitored lakes in New Zealand have poor water quality.
Further, the report states that more lakes are deteriorating in quality than are improving, with much of the deterioration linked to agriculture.
Media coverage: (oldest first)
ONE News: Third of NZ lakes of poor quality
Waikato Times: Many lakes in poor state of health
The Press: Canterbury lake pollution a concern
Timaru Herald: Lakes get clean bill of health
Checkpoint: Farmers pick fight with NIWA report