
ECAN Study Confirms Canterbury Nitrate Issue Escalating
ECan's latest Annual Ground Water Quality Survey released this week shows that nitrate-nitrogen contamination is worsening across 62% of groundwater wells, while 18% show no change in contamination and 20% show a decrease, in sites where a ten-year trend can be established
"This data confirms what's been clear for years: nitrate contamination is a worsening crisis for Canterbury. Everybody should have access to clean, safe drinking water, but for many Cantabrians, turning on the kitchen tap means worrying about getting sick," says Greenpeace freshwater campaigner Will Appelbe.
"The ECan study directly acknowledges that the main source of nitrate contamination is intensive dairying and the use of synthetic nitrogen fertiliser. It points out that most affected communities are those 'in areas around and downstream of intensive farming'.
"Despite the worsening freshwater crisis, ECan has given approval for a wave of dairy expansions across the region, which will devastate freshwater ecosystems and increase nitrate contamination of drinking water."
Since the start of the year, Environment Canterbury has approved over a dozen resource consents for dairy expansions, enabling nearly 16,000 cattle to be added to the region's dairy herd.
"Town supplies in Hinds, Darfield and Oxford have already exceeded 5 mg/L, levels of nitrate associated with an increased risk of cancer and pre-term birth. As nitrate levels increase, it's only a matter of time before a baby in Canterbury is seriously harmed by Blue Baby Syndrome as a result of nitrate-contaminated drinking water," says Appelbe. "This is a serious health issue that Environment Canterbury should be deeply concerned by."
"It's not too late to turn things around. If we reduce the number of dairy cows and phase out the use of synthetic nitrogen fertiliser, we can restore water quality and ensure that everyone, no matter where they live, has access to clean, safe drinking water.
"Environment Canterbury is utterly failing in its responsibility to protect sources of drinking water. People across the region expect better, and are willing to stand up for safe drinking water. Candidates standing for the Canterbury Regional Council in the upcoming local elections must commit to clean drinking water for all, and to end the intensive dairy industry's contamination of groundwater."
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Scoop
5 days ago
- Scoop
ECAN Study Confirms Canterbury Nitrate Issue Escalating
Greenpeace Aotearoa is calling on Environment Canterbury (ECan) to put an end to dairy expansion on the plains, following new data that shows nitrate contamination worsening in the region. ECan's latest Annual Ground Water Quality Survey released this week shows that nitrate-nitrogen contamination is worsening across 62% of groundwater wells, while 18% show no change in contamination and 20% show a decrease, in sites where a ten-year trend can be established "This data confirms what's been clear for years: nitrate contamination is a worsening crisis for Canterbury. Everybody should have access to clean, safe drinking water, but for many Cantabrians, turning on the kitchen tap means worrying about getting sick," says Greenpeace freshwater campaigner Will Appelbe. "The ECan study directly acknowledges that the main source of nitrate contamination is intensive dairying and the use of synthetic nitrogen fertiliser. It points out that most affected communities are those 'in areas around and downstream of intensive farming'. "Despite the worsening freshwater crisis, ECan has given approval for a wave of dairy expansions across the region, which will devastate freshwater ecosystems and increase nitrate contamination of drinking water." Since the start of the year, Environment Canterbury has approved over a dozen resource consents for dairy expansions, enabling nearly 16,000 cattle to be added to the region's dairy herd. "Town supplies in Hinds, Darfield and Oxford have already exceeded 5 mg/L, levels of nitrate associated with an increased risk of cancer and pre-term birth. As nitrate levels increase, it's only a matter of time before a baby in Canterbury is seriously harmed by Blue Baby Syndrome as a result of nitrate-contaminated drinking water," says Appelbe. "This is a serious health issue that Environment Canterbury should be deeply concerned by." "It's not too late to turn things around. If we reduce the number of dairy cows and phase out the use of synthetic nitrogen fertiliser, we can restore water quality and ensure that everyone, no matter where they live, has access to clean, safe drinking water. "Environment Canterbury is utterly failing in its responsibility to protect sources of drinking water. People across the region expect better, and are willing to stand up for safe drinking water. Candidates standing for the Canterbury Regional Council in the upcoming local elections must commit to clean drinking water for all, and to end the intensive dairy industry's contamination of groundwater."


Otago Daily Times
25-07-2025
- Otago Daily Times
Drinking water still a risk: Greenpeace
Greenpeace says Gore is not out of the woods yet in regards to nitrate in the water, but the council says levels are going down all the time and are of acceptable standard. Greenpeace said in a statement it had tested a sample collected from the Gore town supply, which returned a result above 5mg/L nitrate (NO3-N), a level associated with an increased risk of preterm birth. Above this level of nitrate, the New Zealand College of Midwives recommends pregnant people consider finding another source of water because of the increased risk of preterm birth. The sample was collected on Wednesday and tested with an optical spectrometer, which is standard equipment for testing nitrate in the field, and followed the organisation's standard testing procedures which have been externally reviewed by GNS science. While the township's do-not-drink notice has been lifted, Greenpeace freshwater campaigner Will Appelbe says there was still a risk to public health. Gore issued a do-not-drink notice last Friday after the town supply exceeded the maximum allowable value (MAV) of 11.3mg/l for nitrate. It recorded 11.4mg/l. Greenpeace said the limit was set in the 1950s to avoid blue baby syndrome, but it did not take into account the more recent health science that has linked several health risks with long-term exposure to nitrate at levels below the current legal limits, including bowel cancer and preterm birth. "We know the source of this pollution. It's the overuse of synthetic nitrogen fertiliser in intensive dairy farming, led by Fonterra and their lobbyists at Federated Farmers." Gore District Council critical services general manager Jason Domigan said the Water Services Act required all councils to provide water that was safe by meeting current drinking water standards. That set the MAV of nitrate at 11.3mg/l. This is in line with World Health Organisation guidelines, an international standard, and has, in recent years, been through various levels of scrutiny through parliament and the national drinking water regulator Taumata Arowai. He said since the sample on Friday, July 18 of 11.4mg/l, the council had seen a continuous decline in the nitrate concentrations at the East Gore Water Treatment Plant. Accredited laboratory results showed these were at 5.88mg/l at noon on Thursday. "The council will continue to monitor through additional sampling over the coming weeks as we calibrate new nitrate probes installed at Coopers Well and the East Gore Water Treatment Plant." — APL


Otago Daily Times
25-07-2025
- Otago Daily Times
Drinking water still a risk:Greenpeace
Greenpeace says Gore is not out of the woods yet in regards to nitrate in the water, but the council says levels are going down all the time and are of acceptable standard. Greenpeace said in a statement it had tested a sample collected from the Gore town supply, which returned a result above 5mg/L nitrate (NO3-N), a level associated with an increased risk of preterm birth. Above this level of nitrate, the New Zealand College of Midwives recommends pregnant people consider finding another source of water because of the increased risk of preterm birth. The sample was collected on Wednesday and tested with an optical spectrometer, which is standard equipment for testing nitrate in the field, and followed the organisation's standard testing procedures which have been externally reviewed by GNS science. While the township's do-not-drink notice has been lifted, Greenpeace freshwater campaigner Will Appelbe says there was still a risk to public health. Gore issued a do-not-drink notice last Friday after the town supply exceeded the maximum allowable value (MAV) of 11.3mg/l for nitrate. It recorded 11.4mg/l. Greenpeace said the limit was set in the 1950s to avoid blue baby syndrome, but it did not take into account the more recent health science that has linked several health risks with long-term exposure to nitrate at levels below the current legal limits, including bowel cancer and preterm birth. "We know the source of this pollution. It's the overuse of synthetic nitrogen fertiliser in intensive dairy farming, led by Fonterra and their lobbyists at Federated Farmers." Gore District Council critical services general manager Jason Domigan said the Water Services Act required all councils to provide water that was safe by meeting current drinking water standards. That set the MAV of nitrate at 11.3mg/l. This is in line with World Health Organisation guidelines, an international standard, and has, in recent years, been through various levels of scrutiny through parliament and the national drinking water regulator Taumata Arowai. He said since the sample on Friday, July 18 of 11.4mg/l, the council had seen a continuous decline in the nitrate concentrations at the East Gore Water Treatment Plant. Accredited laboratory results showed these were at 5.88mg/l at noon on Thursday. "The council will continue to monitor through additional sampling over the coming weeks as we calibrate new nitrate probes installed at Coopers Well and the East Gore Water Treatment Plant." — APL