Groundwater quality trends 2005–2014

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Creative Commons Attribution 4.0 International

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3277
16
Added
15 Apr 2019

This dataset was first added to MfE Data Service on 15 Apr 2019.

This dataset measures groundwater quality in New Zealand’s aquifers based on measurements made at monitored sites. Many factors influence the quality of our groundwater. Nitrogen, which occurs naturally in groundwater, can increase in concentrations due to agricultural and urban land use, and infrastructure such as waste treatment plants. High concentrations of nitrate-nitrogen in groundwater can affect human health and the quality of surrounding rivers and lakes that receive inflows from groundwater. Ammoniacal nitrogen can cause an undesirable smell that may make groundwater unsuitable for drinking water. Natural processes in groundwater can convert nitrate-nitrogen into ammoniacal nitrogen or other forms under some chemical conditions. Surplus phosphorus drains (leaches) into groundwater as dissolved reactive phosphorus. Too much nitrate-nitrogen, ammoniacal nitrogen, and phosphorus can lead to excessive plant and algae growth where groundwater flows into surface water. E. coli in groundwater is measured in colony forming units (cfu) and can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces. The pathogens can cause illness for anyone who ingests them.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

Table ID 99856
Data type Table
Row count 448
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Groundwater quality state 2010–2014

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Creative Commons Attribution 4.0 International

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4177
11
Updated
11 Jun 2021

This dataset was last updated on MfE Data Service on 11 Jun 2021.

11 June 2021: A revised version of this dataset has been published to correct the terminology used to compare nitrate-nitrogen values to the 3 g/m3 guideline value. The field name has been changed from “ref_meet” to “n_n_guideline”, and values in this field will now be either “Does not exceed” or “Exceeds”, instead of “Meets” or “Does not meet”.

This dataset measures groundwater quality in New Zealand’s aquifers based on measurements made at monitored sites. Many factors influence the quality of our groundwater. Nitrogen, which occurs naturally in groundwater, can increase in concentrations due to agricultural and urban land use, and infrastructure such as waste treatment plants. High concentrations of nitrate-nitrogen in groundwater can affect human health and the quality of surrounding rivers and lakes that receive inflows from groundwater. Ammoniacal nitrogen can cause an undesirable smell that may make groundwater unsuitable for drinking water. Natural processes in groundwater can convert nitrate-nitrogen into ammoniacal nitrogen or other forms under some chemical conditions. Surplus phosphorus drains (leaches) into groundwater as dissolved reactive phosphorus. Too much nitrate-nitrogen, ammoniacal nitrogen, and phosphorus can lead to excessive plant and algae growth where groundwater flows into surface water. E. coli in groundwater is measured in colony forming units (cfu) and can indicate the presence of pathogens (disease-causing organisms) from animal or human faeces. The pathogens can cause illness for anyone who ingests them.

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

Table ID 99855
Data type Table
Row count 741
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Groundwater pesticides survey, 2014

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Creative Commons Attribution 3.0 New Zealand

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5617
18
Added
25 Apr 2017

This dataset was first added to MfE Data Service on 25 Apr 2017.

Pesticides, which include insecticides, fungicides, herbicides and plant growth regulators, are commonly used in New Zealand to control insects, diseases and weeds in primary industries such as agricultural farming, forestry and horticulture. Once applied to land or crops, pesticides can make their way through soil and enter groundwater systems.

File contains whether a pesticide was detected at monitored wells, and if so, what the concentration is. File also includes surrounding land use, well use, well diameter, well depth, and screen depth, where available.

Table ID 53605
Data type Table
Row count 153
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Freshwater physical habitat, 2013/14 - 2018/19

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Creative Commons Attribution 4.0 International

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1030
16
Added
06 Apr 2020

This dataset was first added to MfE Data Service on 06 Apr 2020.

This indicator measures the physical habitat condition of New Zealand waterways. We report on 369 sites across six North Island regions and 90 sites in one South Island region (Southland), identifying the overall state of stream habitat at each site based on at least three years of data between 2013/14 and 2018/19. Ten physical habitat components are measured during the assessment, including bank erosion and the diversity and abundance of fish cover (Clapcott et al, 2019).

Summary report available at www.mfe.govt.nz/publications/fresh-water/indicator...

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

Table ID 104565
Data type Table
Row count 459
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Freshwater fish observational data, 1977-2015

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Creative Commons Attribution 3.0 New Zealand

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7015
78
Added
24 Apr 2017

This dataset was first added to MfE Data Service on 24 Apr 2017.

Freshwater fish are an important component of freshwater ecosystems, have intrinsic biodiversity values and are a valued resource for Māori, recreational and commercial fishers. The presence or absence of a fish species can be affected by changes in catchment land cover and land use, in-stream habitat, fish passages (routes for moving up and down waterways), pests, and contaminants.

The file contains the information associated with each record in the New Zealand Freshwater Fish Database used in the report, and the associated River Environment Classification information of the location of the observation.

Table ID 53599
Data type Table
Row count 26915
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Fish licences issued by Fish and Game, 1980/81 to 2013/14 seasons

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Creative Commons Attribution 3.0 New Zealand

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5775
34
Added
29 Sep 2015

This dataset was first added to MfE Data Service on 29 Sep 2015.

Fresh water in New Zealand is highly valued for recreational activities, including fishing. Freshwater angling (primarily for introduced ‘sports fish’ such as brown trout, rainbow trout, and chinook salmon) is a popular leisure activity. Fish licences issued by Fish & Game New Zealand provide an indication of recreational fishing activity at freshwater locations around the country.

This dataset relates to the "Participation in recreational fishing" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52543
Data type Table
Row count 238
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Fish Index of Biotic Integrity, 1998 - 2018

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Creative Commons Attribution 4.0 International

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3049
19
Added
15 Apr 2020

This dataset was first added to MfE Data Service on 15 Apr 2020.

This dataset summaries backpack electric fishing observations from the New Zealand Freshwater Fish Database for the period 1998 - 2018. It provides the locations and scores for Fish Index of Biotic Integrity (IBI) (including sub-metric scores).

Technical report available at www.mfe.govt.nz/publications/environmental-reporti....

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

Table ID 104589
Data type Table
Row count 5939
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Estimated contemporary and pre-human wetland area, by type (2008 estimate)

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Creative Commons Attribution 3.0 New Zealand

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5411
43
Added
29 Sep 2015

This dataset was first added to MfE Data Service on 29 Sep 2015.

Wetlands support unique biodiversity and provide important services. They clean water of excess nutrients and sediment, help absorb floodwaters, and act as carbon sinks (remove carbon dioxide from the atmosphere). They also have cultural importance for Māori, and provide valuable food and materials (eg flax). Draining wetlands for agricultural and urban development over the past 150 years has significantly reduced their extent, leading to a loss of biodiversity and natural function. This dataset contains estimates of the national extent of the different types of wetlands in contempary and pre-human times.

This dataset relates to the "Wetland extent" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52541
Data type Table
Row count 14
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Estimated contemporary and pre-human wetland area, by region (2008 estimate)

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Creative Commons Attribution 3.0 New Zealand

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5612
65
Added
07 Oct 2015

This dataset was first added to MfE Data Service on 07 Oct 2015.

Wetlands support unique biodiversity and provide important services. They clean water of excess nutrients and sediment, help absorb floodwaters, and act as carbon sinks (remove carbon dioxide from the atmosphere). They also have cultural importance for Māori, and provide valuable food and materials (eg flax). Draining wetlands for agricultural and urban development over the past 150 years has significantly reduced their extent, leading to a loss of biodiversity and natural function. This dataset contains estimates of the extent of wetlands in pre-human and contemporary times by regional council area, and nationally.

This dataset relates to the "Wetland extent" measure on the Environmental Indicators, Te taiao Aotearoa website.

Table ID 52593
Data type Table
Row count 34
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed

Deposited sediment in rivers, 2014 - 2019

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Creative Commons Attribution 4.0 International

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1024
15
Added
06 Apr 2020

This dataset was first added to MfE Data Service on 06 Apr 2020.

This indicator measures the average percentage of streambed covered by fine sediment for areas of smooth, unbroken water in hard-bottomed, wadeable streams and rivers, at 215 sites across six regions assessed at least bi-monthly for two consecutive years between 2014 and 2019.

Summary report available at www.mfe.govt.nz/publications/fresh-water/indicator....

More information on this dataset and how it relates to our environmental reporting indicators and topics can be found in the attached data quality pdf.

Table ID 104559
Data type Table
Row count 215
Services Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
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