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<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:12 0 8 0;"><SPAN>Hydrochemistry data for groundwater bores</SPAN><SPAN> and springs </SPAN><SPAN>were collated from various sources in the SNG region including DEPWS (2023), </SPAN><SPAN>Geoscience Australia (2024), </SPAN><SPAN>Gray and Bardwell (2016a, 2016b), </SPAN><SPAN>McGrath</SPAN><SPAN> et al. (202</SPAN><SPAN>1</SPAN><SPAN>), NT Government (2022), QDRDMW (2023)</SPAN><SPAN>,</SPAN><SPAN> Schroder et al. (2020)</SPAN><SPAN> and Trihey and Northey (2021)</SPAN><SPAN>.</SPAN><SPAN> </SPAN><SPAN>Given the large variation in temporal range of the data (1948</SPAN><SPAN><SPAN>–</SPAN></SPAN><SPAN><SPAN>2022), the most recently acquired data for each bore was used as basis for this assessment. Records with charge balance errors of </SPAN></SPAN><SPAN><SPAN>≤</SPAN></SPAN><SPAN><SPAN>10% for selected major and minor ions (sodium, calcium, magnesium, potassium, iron, strontium, chloride, bicarbonate, sulfate, nitrate, fluoride, bromide, iodide, and silica) were included for this hydrochemical assessment, totalling 2,154 measurements.</SPAN></SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>A subset of bores </SPAN><SPAN>have been assigned a source aquifer based on information in existing databases by applying a consistent attribution method (Appendix C in Dixon-Jain et al. 2024).</SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>DEPWS (Department of Environment, Parks and Water Security) (2023) Northern Territory bore locations, water quality and groundwater levels [data set], https://data.nt.gov.au/dataset/nt-bore-locations-water-quality-and-groundwater-levels</SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>Dixon-Jain P, Bishop C, Lester JE, Orlov C, McPherson A, Pho G, Flower C, Kilgour P, Lawson S, Vizy J and Lewis SJ (2024) Hydrogeology and groundwater systems of the South Nicholson and Georgina basins, Northern Territory and Queensland. Record 2024/37, Geoscience Australia, Canberra. https://dx.doi.org/10.26186/149730</SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>Geoscience Australia (2024) Hydrochemistry [data set], Geoscience Australia, Canberra. https://portal.ga.gov.au/metadata/geochemistry/hydrochemistry/all-hydrochemistry-analyses/a2edc729-7cbd-42dd-a169-0a55e562b366, https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/147298 </SPAN><SPAN>[web service]</SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>Gray, D and Bardwell, N (2016a) Hydrogeochemistry of Northern Territory: Data Release v1 [data set], CSIRO. Australia, https://doi.org/10.4225/08/575A456B53264.</SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>Gray, D and Bardwell, N (2016b) Hydrogeochemistry of Northern Territory: Data Release v2 [data set], CSIRO, Australia, https://doi.org/10.4225/08/5987d4ba86ff7.</SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>McGrath-Cohen, E.S.B., Trihey, J.M., Northey, J.E. 2021. Exploring for the Future — Groundwater hydrochemistry data release: Ti Tree project, Northern Territory. Record 2020/044. Geoscience Australia, Canberra. http://dx.doi.org/10.11636/Record.2020.044</SPAN><SPAN> </SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>NT Government (2022) Strategic Regional Environmental Baseline Assessment (SREBA) Beetaloo groundwater quality database [data set], https://srebadata.nt.gov.au/view/ntg-sda-000000051</SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>QDRDMW (Queensland Department of Regional Development, Manufacturing and Water) (2023) Groundwater database – Queensland, https://www.data.qld.gov.au/dataset/groundwater-database-queensland, </SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>Schroder IF, de Caritat P, Wallace L, Trihey JM, Boreham C, Tobin J, English PE, Sohn J, Palatty P, Coghlan RA, Flower C, Maher P, Main PT, Thorose M, Long I, Byass J and Jinadasa N (2020) Northern Australia Hydrogeochemical Survey: Final Data Release and Hydrogeochemical Atlas for EFTF, Geoscience Australia, Canberra, http://dx.doi.org/10.11636/Record.2020.015</SPAN></P><P STYLE="margin:12 0 8 0;"><SPAN>Trihey, J., Northey, J.E. 2021. Exploring for the Future — Groundwater hydrochemistry data release: Western Davenport project, Northern Territory. Record 2020/048. Geoscience Australia, Canberra. http://dx.doi.org/10.11636/Record.2020.048</SPAN></P></DIV></DIV></DIV> |