Groundwater monitoring results

Groundwater is a key environmental value that must be protected during onshore gas exploration and development activities in the Northern Territory.

In accordance with the Code of Practice: Onshore Petroleum Activities in the Northern Territory, at least six months of local baseline groundwater data must be collected prior to drilling or hydraulic fracturing.

The department publishes these results quarterly to increase the transparency of groundwater use and environmental performance by the onshore gas industry.

View all the Environment Management Plans

About the groundwater reports

Each quarter, petroleum interest holders submit groundwater monitoring data, providing transparency on the impact of hydraulic fracturing on groundwater.

Groundwater monitoring data is submitted quarterly by petroleum interest holders in compliance with the Code of Practice: Onshore Petroleum Activities in the Northern Territory.

The results are published on the department's website, with monitoring to continue for three years.

Groundwater reports

Report name Description Relevant approved EMP

Groundwater monitoring results at Imperial EP187 in  accordance with the Code of Practice: March 2020 to April 2020. PDF (727.1 KB)

Baseline groundwater monitoring in compliance with the Code on EP184 at two existing water bores (RN027848 and RN039574) situated in proximate location to the approved Imperial Oil and Gas Pty Ltd petroleum well  locations, Carpentaria-1 and Carpentaria-2.

Imperial Oil and Gas
Environment Maanagement Plan. Imperial 2019 Drilling Program. NT Exploration Permit (EP) 187 PDF (43.1 MB).
Approval date: 02/03/2020

Groundwater monitoring results at Santos Tanumbirini and Inacumba well sites in the Beetaloo sub-basin in accordance with the Code of Practice: December 2018 to March 2020. PDF (1.0 MB)

This report summarises the results of the Santos Beetaloo  Sub-basin groundwater monitoring program to date,  which occurred on  Exploration Permit 161 (EP161). The monitoring bores at each well site on EP161  are:

  • Tanumbirini Gum Ridge aquifer Control Monitoring  Bore: RN040930
  • Tanumbirini Gum Ridge aquifer Impact Monitoring  Bore: RN040936
  • Inacumba Gum Ridge aquifer Control Monitoring  Bore: RN40931
Santos QNT Pty Ltd
McArthur Basin Hydraulic Fracturing 2019-20 Program Exploration Permit, EP161 PDF (25.3 MB)
Approval date: 23/10/2019  

Groundwater monitoring results at Origin Kyalla and Velkerri well sites in the Beetaloo sub-basin in accordance with the Code of Practice: December 2018 to May 2020. PDF (823.0 KB)

This report summarises the results of the Beetaloo Sub-basin groundwater monitoring program to date, which occurred on exploration permit 117 (EP117) and Exploration Permit 76 (EP76). The control monitoring bore (CMB) registered water bore numbers for each CMB at Kyalla and Velkerri well sites are:

  • Kyalla Gum Ridge aquifer Control Monitoring Bore: RN041132
  • Kyalla Anthony Lagoon aquifer Control Monitoring Bore: RN040895/RN040896
  • Velkerri Gum Ridge aquifer Control Monitoring Bore: RN041134
  • Velkerri Anthony Lagoon aquifer Control Monitoring Bore: RN04113
Origin Energy B2 Pty Ltd
Beetaloo Sub-basin Velkerri 2019-2024 Drilling, Hydraulic fracturing and well testing Exploration Permit, EP76 PDF (9.8 MB)
Approval date: 23/12/2019  

Groundwater monitoring results at Origin Kyalla and Velkerri well sites in the Beetaloo Sub-basin in accordance with the Code of Practice: December 2018 to December 2019 PDF (1.1 MB)

This report summarises the results of the Beetaloo Sub-basin groundwater monitoring program to date,  which occurred on exploration permit 117 (EP117) and Exploration Permit 76 (EP76). The control monitoring bore (CMB) registered water bore numbers for each CMB at Kyalla and Velkerri well sites are:

  • Kyalla Gum Ridge aquifer Control Monitoring Bore: RN041132
  • Kyalla Anthony Lagoon aquifer Control Monitoring Bore: RN040895/RN040896
  • Velkerri  Gum Ridge aquifer Control Monitoring Bore: RN041134
  • Velkerri Anthony Lagoon aquifer Control Monitoring Bore: RN04113
Origin Energy B2 Pty Ltd
Beetaloo Sub-basin Velkerri 2019-2024 Drilling, Hydraulic fracturing and well testing Exploration Permit, EP76 PDF (9.8 MB)
Approval date: 23/12/2019 

Groundwater monitoring results at Santos Tanumbirini and Inacumba well sites in the Beetaloo Sub-basin in accordance with the Code of Practice: December 2018 to December 2019 PDF (22.0 MB)

This report summarises the results of the Santos Beetaloo Sub-basin groundwater monitoring program to date,  which occurred on Exploration Permit 161 (EP161).

The monitoring bores at each well site on EP161 are:

  • Tanumbirini Gum Ridge aquifer Control Monitoring Bore: RN040930
  • Tanumbirini Gum Ridge aquifer Impact Monitoring Bore: RN040936
  • Inacumba Gum Ridge aquifer Control Monitoring Bore: RN40931

The data presented in this report fulfils the Code of Practice: Onshore Petroleum Activities in the Northern Territory (the Code) (2019) requirement for six months of baseline monitoring of groundwater at Tanumbirini and Inacumba well site prior to undertaking hydraulic fracturing activities.

Data for water quality in the Impact Monitoring Bore after completion of hydraulic fracturing at Tanumbirini-1 has also been reported in compliance with the Code.

Santos QNT Pty Ltd
McArthur Basin Hydraulic Fracturing 2019-20 Program Exploration Permit, EP161 PDF (25.3 MB)
Approval date: 23/10/2019

Groundwater monitoring results at Origin Kyalla EP117 well site, Beetaloo Sub-basin: December 2018 to October 2019 PDF (451.1 KB)

This report summarises the results of the Beetaloo Sub-basin groundwater monitoring program to date, which occurred on exploration permit 117 (EP117). The control monitoring bore (CMB) registered water bore numbers for each CMB at Kyalla are:

  • Kyalla Gum Ridge aquifer Control Monitoring Bore: RN041132
  • Kyalla Anthony Lagoon aquifer Control Monitoring Bore: RN040895/RN040896

The data presented in this report fulfils the Code of Practice: Onshore Petroleum Activities in the Northern Territory (the Code) (2019) requirement for six months of baseline monitoring of groundwater at a well site prior to undertaking hydraulic fracturing activities.

Origin Energy
Beetaloo Basin Kyalla drilling hydraulic fracture stimulation and well testing program EP117 N2 PDF (7.4 MB)
Approval date: 05/08/2019 
Groundwater Monitoring results at petroleum well sites in the Betaloo Sub-basin in accordance with the Code of Practice – Quarter 2 2018/19 to Quarter 2 2019/20  PDF (1.3 MB)

This report summarises the results of the groundwater monitoring program on EP161 – Santos McArthur Basin EP161.

The groundwater monitoring program consists of:

  • a control monitoring bore array located up-gradient and within 100m of the planned or existing petroleum well pad (i.e. "upstream")
  • an impact monitoring bore array, 20m down-gradient (i.e. "downstream") of the location of the petroleum well.

Santos QNT Pty Ltd
McArthur Basin 2019 hydraulic fracturing 2019-20 program exploration permit, EP161 PDF (25.3 MB)
Approval date: 23/10/2019

Groundwater monitoring data 2019
PDF (581.6 KB)

This report summarises the results of the Beetaloo groundwater monitoring program to date which occurred on two exploration permits (EP):

  • Origin Beetaloo Basin Kyalla EP117
  • Santos McArthur Basin EP161.

The groundwater monitoring program consists of:

  • a control monitoring bore array located up-gradient and within 100m of the planned or existing petroleum well pad (i.e. "upstream")
  • an impact monitoring bore array, 20m down-gradient (i.e. "downstream") of the location of the petroleum well.

Origin Energy
Beetaloo Basin Kyalla drilling hydraulic fracture stimulation and well testing program EP117 N2 PDF (7.4 MB)
NT-2050-15-MP-025
Rev 1, 5 August 2019
Approval date: 13/08/2019


Santos QNT Pty Ltd
McArthur Basin 2019 drilling program NT Exploration Permit, EP161 PDF (14.2 MB)
Rev 5, 15 July 2019
Approval date: 19/07/2019

Amungee HF report
PDF (504.8 KB)

This report discusses the water quality monitoring program at Amungee NW 1-H exploration well from 2015 to 2018.

The data includes water quality from two sources:

  • the groundwater monitoring bore that intersects the Gum Ridge aquifer at the Amungee NW 1-H well site
  • the hydraulic fracture stimulation and flowback water at the exploration well.

The data in this report is useful to compare 2015 baseline monitoring bore data with subsequent years following hydraulic fracturing activities. The data indicates there are no significant changes in groundwater quality to date.

Origin Energy Resources Ltd
2016 Hydraulic Stimulation and Well Testing EP Summary Amungee NW‑1H PDF (524.0 KB)
CDN/ID NT-2050-35-PH-0018
17 August 2016
Approval date: 23/08/2016

Shenandoah HF water quality monitoring data
PDF (769.6 KB)

The report discusses the 2011 water quality monitoring results from the Shenandoah-1 Petroleum Well. The data includes water quality from two sources:

  • four groundwater monitoring bores near the Shenandoah Well site that intersect the Gum Ridge aquifer
  • the flowback water at the exploration well head prior to flaring and discharge into the holding tank.

Further monitoring will be undertaken at this bore.

No current EMP

Last updated: 12 August 2020

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