Elise Watson Tyler D. Johnson Danielle I. Dupuy 20230124 Vector Digital Data Set (Polygon) https://doi.org/10.5066/P931PZRC The California Groundwater Ambient Monitoring and Assessment Program (GAMA) is a statewide assessment of groundwater quality designed to help better understand and identify risks to groundwater resources. GAMA is implemented by the California State Water Resources Control Board. The U.S. Geological Survey (USGS) is the technical lead for the Priority Basin Project (PBP), one of the components of the GAMA Program. Starting in 2012, GAMA began an assessment of water resources in domestic-supply (shallow) aquifers in California. These aquifers provide water for domestic and small community-supply wells, which are often drilled to shallower depths in the groundwater system than public-supply wells. Domestic-supply aquifers are of interest because shallow groundwater may respond more quickly and be more susceptible to contamination from human activities at the land surface, than the deeper aquifers (USGS, 2018). To prioritize domestic-supply aquifers, California was divided into 938 groundwater units consisting of California Department of Water Resources (DWR) groundwater basins and highland areas outside of the basins defined by California Groundwater Units (Johnson and Belitz, 2014) or Hydrologic Units (HUC8) from the Watershed Boundary Dataset (USGS and USDA, 2013). The groundwater units were prioritized for sampling based on the number and density of households relying on domestic wells, water-use, and well-location information compiled from well-completion reports submitted to the DWR. The groundwater units were grouped into study units designed to facilitate comparison of groundwater quality between the shallow aquifer systems and the deep aquifer systems assessed by GAMA from 2004 to 2012 (Bennett, 2018). Some study units were further subdivided into study areas. The study units (and study areas when applicable) were divided into equal area polygons (cells) so that all cells within a given study unit (or study area) have an equal area. The study unit boundaries can be found in the GAMA_PBP_SAA_Boundaries shapefile included in this Data Release. The purpose of this publication is to collect and assemble all of the study area grid cells into a single GIS dataset. At the time of this publication, a total of 16 study units comprising of 35 study areas have been sampled. These study areas have been divided into a total of 1018 cells, with the number of cells per study area ranging from 10 to 50 (median 25), and the size of the cells ranging from 14 to 175 km2 (median 60 km2). Two of the Monterey Bay and Salinas Valley Domestic-Supply Aquifer study area cells were further subdivided into subcells to get a greater spatial density of data (Goldrath and others, 2016). Additional information about the design of individual study area grids can be found in the reports listed in the Report_Ref attribute descriptions. Grid cells created for the deep aquifer systems study can be found in Johnson and others, 2018. Version Notes: This Data Release supersedes the data release published in 2020 (version 1). This data release was updated to include study units sampled since the initial publication. Also, report references for all version 1 study units have been updated to reflect the most recent publications for each study unit. In addition, study unit names were updated to be listed as the full name instead of the study unit abbreviations used in version 1. Minor revisions were also made to the metadata text. The version 1 data release may be obtained by contacting the dataset Point of Contact. This digital data set was created as part of the study design for a statewide, comprehensive groundwater monitoring and assessment program (Belitz and others, 2003; Belitz and others, 2015; California State Water Resources Control Board, 2003). This data set contains grid cells of domestic-supply (shallow) aquifers that are spatially distributed across study areas, providing a basis for equal area sampling of selected groundwater basins. Additional grid cells sampled as part of the GAMA program will be added to this data set when sampling for new study units is completed. See the Cross Reference section for related publications. For more information on sampling design, see the individual Study Unit reports (listed in the Entity and Attribute Information section). 2012 2022 ground condition Planned As needed -124.4445 -113.7503 42.0432 32.4890 ISO 19115 Topic Category environment inlandWaters USGS Thesaurus water-quality Groundwater drinking water None GAMA Priority Basin Project shallow aquifer domestic wells domestic-supply aquifer USGS Metadata Identifier USGS:6384e024d34ed907bf7795ae Common geographic areas California United States None Although this data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Elise Watson U.S. Geological Survey, SOUTHWEST REGION Physical Scientist mailing address

4165 Spruance Road

San Diego CA 92101-0821 US 619-225-6426 619-225-6436 ewatson@usgs.gov US Geological Survey California Water Science Center Groundwater Ambient Monitoring and Assessment Program Esri ArcGIS 10.5 (Build 6491) Service Pack N/A (Build N/A) Kenneth Belitz Neil M. Dubrovsky Karen Burow Bryant C. Jurgens Tyler D. Johnson 2003 publication n/a US Geological Survey http://pubs.usgs.gov/wri/wri034166 https://doi.org/10.3133/wri034166 Kenneth Belitz Miranda S. Fram Tyler D. Johnson 20150709 publication Environmental Science & Technology vol. 49, issue 14 n/a American Chemical Society (ACS) ppg. 8330-8338 https://doi.org/10.1021/acs.est.5b00265 George L. Bennett V 2018 publication n/a US Geological Survey https://doi.org/10.3133/sir20175051 California State Water Resources Control Board 200303 publication https://www.waterboards.ca.gov/publications_forms/publications/legislative/docs/2003/ab599.pdf Dara A. Goldrath Justin T. Kulongoski Tracy A. Davis 2016 publication n/a US Geological Survey https://doi.org/10.3133/ds987 Tyler D. Johnson Kenneth Belitz 2003 publication n/a US Geological Survey https://doi.org/10.3133/ofr03470 Tyler D. Johnson Kenneth Belitz 2014 publication n/a US Geological Survey https://doi.org/10.3133/ds796 Kenneth Belitz Tyler Johnson Elise Watson 2018 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/f79z93cn U.S. Geological Survey U.S. Department of Agriculture, Natural Resources Conservation Service 2013 4th publication https://pubs.usgs.gov/tm/11/a3/pdf/tm11-a3_4ed.pdf U.S. Geological Survey 2018 publication https://pubs.usgs.gov/fs/2012/3136/ No formal attribute accuracy tests were conducted. While Scott(1990) does create a topology of grid cells within the selected study area, topology does not exist outside of the study area. Thus, gaps or slight overlaps may exist between grids of neighboring study areas. Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. Tyler D. Johnson Kenneth Belitz 201503 publication Journal of Hydrology: Regional Studies vol. 3 n/a Elsevier BV ppg. 31-86 https://doi.org/10.1016/j.ejrh.2014.09.002 Digital and/or Hardcopy 2015 publication date Johnson and Belitz 2015 Used in defining the study areas for the Redding-Red Bluff Shallow Aquifer study unit. Tyler D. Johnson Kenneth Belitz Melissa A. Lombard 201910 publication Science of The Total Environment vol. 687 n/a Elsevier BV ppg. 1261-1273 https://doi.org/10.1016/j.scitotenv.2019.06.036 Digital and/or Hardcopy 2019 publication date Johnson and others Used in defining the study units in the Kern County and Gilroy-Hollister Valley and Highlands study units. Scott, Jon C. 1990 Digital and/or Hardcopy Resources Reston, VA U.S. Geological Survey https://pubs.er.usgs.gov/publication/wri904101 Digital and/or Hardcopy Resources 1990 publication date Scott algorithm This program was used to generate equal area grid cells for all study units. S1: The North San Francisco Bay Basins and adjacent highlands Domestic-supply Aquifer study unit was split into two study areas: Valley and Plains, and Highlands. Areas near the Bay with soils potentially high in salinity were excluded from the assessed area. In addition, the Highlands study area was clipped to only include Public Land Survey System (PLSS) sections within the boundary that contained at least one domestic well with a driller’s log record. Using the Scott algorithm, the Valley and Plains study area was divided into 30 cells of approximately 36 square kilometers (km2); the Highlands study area was divided into 40 cells, approximately 61 km2 in size. The Valley and Plains study area was rotated -30 degrees from vertical (North = 0 degrees) to align better with the valley’s long axis. 2012 S2: The Monterey Bay and Salinas Valley Basins and adjacent highlands Domestic-supply Aquifer study unit was split into four study areas: Santa Cruz, Pajaro, Salinas and Paso Robles Valleys, and Highlands of the Salinas and Paso Robles Valleys. The Salinas/Paso Robles Valleys study area was rotated -40 degrees from vertical to align better with the valley’s long axis. The Santa Cruz study area was divided into 15 cells approximately 14 km2 in size; Pajaro was divided into 15 cells approximately 24 km2 in size; Salinas/Paso Robles Valley was divided into 40 cells approximately 50 km2 in size; and the Highlands was divided into 30 cells approximately 175 km2 in size. The Pajaro and Salinas/ Paso Robles Valleys cells were further subdivided into thirds resulting in subcells of approximately 8 km2 for Pajaro and 16 km2 for Salinas/ Paso Robles Valleys. 2012 S3: The Madera, Chowchilla, and Kings Basins Domestic-supply Aquifer study unit was split into two study areas: Madera/Chowchilla and Kings. Both study areas were divided into equal area grid cells of approximately 80 km2 in size, resulting in 28 cells for Madera/Chowchilla and 49 cells for Kings. 2013 S4: The Kaweah, Tule, and Tulare Lake Basins and adjacent highlands Domestic-supply Aquifer study unit was split into four study areas: Tule, Tulare, Kaweah, and Highlands. The Highlands and the Tulare study areas both contained large areas where no domestic wells were known to exist. These study area boundaries were clipped to only include PLSS sections within the boundary that contained at least one domestic well with a driller’s log record. Each study area was divided into equal area grid cells approximately 60 km2 in size. The Tule study area was divided into 32 cells, Tulare into 18 cells, Kaweah into 30 cells, and Highlands into 21 cells. 2014 S5: The Yuba and Bear River Watersheds Domestic-supply Aquifer study unit was divided into two study areas: Yuba and Bear. Both study areas contained large areas where no domestic wells were known to exist. The boundaries were clipped to only include PLSS sections within the boundary that contained at least one domestic well with a driller’s log record. In addition, any PLSS sections that contained wells from the following sources were included: USGS Ground Water Site Inventory system (GWSI), California Department of Water Resources (DWR), and local county domestic well datasets. Each study area was divided into 75 equal area grid cells approximately 30 km2 in size. The Upper Yuba cells coverage was rotated -30 degrees from vertical to align the axis perpendicular to the contact with the valley. 2015 S6: The Mokelumne, Cosumnes, and American River Watersheds Domestic-supply Aquifer study unit was split into four study areas: North American, South American, Cosumnes, and Mokelumne. These study areas contained large areas where no domestic wells were known to exist. The boundaries were clipped to only include PLSS sections within the boundary that contained at least one domestic well with a driller’s log record. In addition, any PLSS sections that contained wells from the following sources were included: GWSI, DWR, and local county domestic well datasets. The study unit was divided into 67 equal area grid cells approximately 61 km2 in size. This resulted in 19 cells in the North American study area, 17 cells in the South American and Cosumnes study areas, and 14 cells in the Mokelumne study area. The axes of the Cosumnes and Mokelumne study area cells were rotated -21 and -22 degrees from vertical respectively to align the axes perpendicular to the contact the valley. 2016 S7: The Cosumnes and American basins Domestic-supply Aquifer study unit was divided into three study areas: Cosumnes, North American, and South American. The assessed area of the study unit was divided into 56 approximately equal-area grid cells, each approximately 58 km2. This resulted in 15 cells in Cosumnes, 24 cells in North American, and 17 cells in the South American study area. The axis of all the cells was rotated -20 degrees from vertical to align with the approximate boundary of the Central Valley and the beginning of the Sierra Nevada hydrogeologic province to the East. 2017 S8: The Western Mojave Desert Basins Domestic-supply Aquifer study unit was divided into 2 study areas: Regional and Floodplain. Areas containing wells in the study unit were identified using data on domestic wells from the DWR, the Mojave Water Agency, and NWIS. Wells in NWIS were filtered to only include wells that were sampled or had a water level taken since 1975, to decrease the likelihood of targeting wells destroyed due to declining water levels. Wells from the DWR database were filtered to exclude wells drilled before 1975 from the list of potential well targets. Three kilometer buffers around each well in those databases were generated to increase the likelihood of sampling a well in each grid cell. Areas outside those 3 km clipped boundaries, but within the study unit boundaries, were excluded from the study. The study unit was divided into 50 approximately equal area grid cells, of about 85 km2 for the Regional study area and 30 km2 for the Floodplain study area. 2017 S9: The Northern Sacramento Valley Domestic-supply Aquifer study unit was divided into the Redding and Red Bluff study areas. PLSS sections of land found within the study unit that contained a well previously sampled by GAMA, a domestic well found in the GWSI database, or a well with a driller's log record, were used to create the study area boundaries. In addition, PLSS sections previously identified to contain a domestic well by Johnson and Belitz (2015) were also included as part of the study area boundaries. Each study area was divided into 25 approximately equal area grid cells. The Redding study area was divided into 48 km2 cells and the Red Bluff study area was divided into 43 km2 cells. 2018 S10: The Northern San Joaquin Valley Domestic-supply Aquifer study unit contains only one study area. The study unit was divided into 50 equal area grid cells, approximately 61 km2 each. The cells were aligned with the boundary of the Central Valley against the Sierra hydrologic province to the east and were rotated -20 degrees from vertical to approximate this NW-SE line, consistent with the rotation of the S9 grid cells. 2019 S11: The Coachella Valley Domestic-supply Aquifer study unit contains only one study area. Areas within a 3 kilometer buffer of domestic wells obtained from GWSI or local county domestic well datasets were included in the assessed area of the study unit. The study unit was divided into 30 equal area grid cells, approximately 52 km2 in size. Cells were rotated -30 degrees from vertical to approximate the NW-SE axis of the Coachella Valley. 2019 S12S13: The Modesto, Turlock, and Merced basins Domestic-supply Aquifer study unit contains four study areas: Modesto, Turlock, Merced, and Uplands. The Modesto, Turlock, and Merced study areas were divided into 62 equal area grid cells approximately 60 km2 in size, with 10 cells in the Modesto study area, 18 cells in the Turlock study area, and 24 cells in the Merced study area. The Uplands study area was divided into 10 grid cells approximately 110 km2 in size to account for decreased well density in this area. Cells were rotated -35 degrees from vertical so they would be aligned with the axis of the Central Valley, to approximate this NW-SE line. 20200623 S14: The Butte, Sutter, and Yuba Basins and adjacent highlands Domestic-supply Aquifer study unit contains two study areas: Sacramento Valley and Foothills. Only areas that contained domestic wells obtained from GWSI or local county domestic well datasets were included in the assessed area of the study unit. The Sacramento Valley study area was divided into 25 equal area grid cells approximately 154 km2 in size and the Foothills study area was divided into 15 equal area grid cells approximately 148 km2 in size. All cells in the unit were aligned with the boundary of the Central Valley against the Sierra hydrologic province to the east. Cells were rotated -20 degrees from vertical to approximate this NW-SE line, also consistent with the rotation of the Sacramento Metro shallow aquifer study unit grid cells. 20210603 S15: The Kern basin Domestic-supply Aquifer study unit contains only one study area. Only areas that contained domestic wells obtained based on a census block-group based map of domestic well density from Johnson and others (2019) were included in the assessed area of the study unit. The study unit was divided into 40 equal area grid cells, approximately 85 km2 in size. Cells were rotated 30 degrees from vertical to be consistent with the alignment of the Kern County Subbasin public supply assessment study unit. 06302022 S16: The Gilroy and Hollister Basins and adjacent highlands Domestic-supply Aquifer study unit contains only one study area. Only areas that contained domestic wells obtained based on a census block-group based map of domestic well density from Johnson and others (2019) were included in the assessed area of the study unit. The study unit was divided into 40 equal area grid cells, approximately 33 km2 in size. Cells were rotated 30 degrees from vertical to be consistent with the alignment of the South Coast Range Interior public supply assessment study unit. 20220329 Vector Simple FALSE 0 FALSE FALSE coordinate pair 0.6096 0.6096 meters D_North_American_1983 GRS_1980 6378137.0 298.257222101 Attribute Table Table containing attribute information associated with the data set. Producer defined Feature Class 0 FID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. FID OID 4 0 0 Shape Feature geometry. Esri Coordinates defining the features. Shape Geometry 0 0 0 SU The number and name of the Study Unit. Producer defined The number and name of the Study Unit SU String 150 0 0 SA Name of the Study Area. Producer defined The name of the Study Area SA String 50 0 0 CELL Grid cell number. Grid cells are sequentially numbered within each Study Area. Producer defined 1 50 CELL Integer 10 10 0 SubGrid_ID Grid Identifier. Includes Hydrogeologic Province and Study Area. See below for Province abbreviations. Producer defined DBR Desert Province Producer defined NCR Northern Coast Ranges Province Producer defined SAC Sacramento Valley region of the Central Valley Province Producer defined SCR Southern Coast Ranges Province Producer defined SJV San Joaquin Valley region of the Central Valley Province Producer defined SubGrid_ID String 40 0 0 SubGridCel Unique cell identifier. Producer defined A concatenation of the SubGrid ID + Cell Number. SubGridCel String 50 0 0 AreaSqKm Area in square kilometers. Producer defined 8 175 AreaSqKm Double 19 0 0 Report_Ref References the USGS Data Series, Data Releases, or Scientific Investigation Report (SIR) that include more detailed information about the Study Unit. Study Units S10_NESSA and S11_CODA do not have an associated report at the time of this publication. Producer defined none A report for the study unit has not been published yet. Producer defined S1 Bennett, G.L., V, 2018, Status and understanding of groundwater quality in the North San Francisco Bay Shallow Aquifer study unit, 2012; California GAMA Priority Basin Project (ver. 1.1, February 2018): U.S. Geological Survey Scientific Investigations Report 2017-5051, 74 p., https://doi.org/10.3133/sir20175051. Producer defined S2 Burton, C.A., and Wright, M.T., 2018, Status and understanding of groundwater quality in the Monterey-Salinas Shallow Aquifer study unit, 2012-13: California GAMA Priority Basin Project (ver. 1.1, September 2018): U.S. Geological Survey Scientific Investigations Report 2018-5057, 116 p., https://doi.org/10.3133/sir20185057. Producer defined S3 Fram, M.S. and Shelton, J.L., 2018, Groundwater Quality in the Shallow Aquifers of the Madera–Chowchilla and Kings Subbasins, San Joaquin Valley, California: U.S. Geological Survey Open-File Report 2017–1162, 4 p., https://doi.org/10.3133/ofr20171162. Producer defined S4 Fram, M.S., 2017, Groundwater quality in the shallow aquifers of the Tulare, Kaweah, and Tule Groundwater Basins and adjacent highlands areas, Southern San Joaquin Valley, California: U.S. Geological Survey Fact Sheet 2017-3001, 4 p., https://doi.org/10.3133/fs2017300. Producer defined S5 Levy, Z.F., and Fram, M.S., 2021, Status and understanding of groundwater quality in the northern Sierra Nevada foothills domestic-supply aquifer study units, 2015–17—California GAMA Priority Basin Project: U.S. Geological Survey Scientific Investigations Report 2021–5019, 120 p., https://doi.org/10.3133/sir20215019. Producer defined S6 Levy, Z.F., and Fram, M.S., 2021, Status and understanding of groundwater quality in the northern Sierra Nevada foothills domestic-supply aquifer study units, 2015–17—California GAMA Priority Basin Project: U.S. Geological Survey Scientific Investigations Report 2021–5019, 120 p., https://doi.org/10.3133/sir20215019. Producer defined S7 Bennett, G.L., V, 2022, Status and understanding of groundwater quality in the Sacramento Metropolitan Domestic-Supply Aquifer study unit, 2017—California GAMA Priority Basin Project: U.S. Geological Survey Scientific Investigations Report 2022–5021, 52 p., https://doi.org/10.3133/sir20225021. Producer defined S8 Groover, K.D., and Goldrath, D.A., 2019, Groundwater quality in shallow aquifers in the western Mojave Desert, California: U.S. Geological Survey Fact Sheet 2019–3033, 4 p., https://doi.org/10.3133/fs20193033. Producer defined S9 Harkness, J.S., and Shelton, J.L., 2020, Groundwater quality in the Redding–Red Bluff shallow aquifer study unit of the northern Sacramento Valley, California: U.S. Geological Survey Fact Sheet 2020–3025, 4 p., https://doi.org/10.3133/fs20203025. Producer defined S10 Levy, Z.F., Balkan, M., and Shelton, J.L., 2021, Quality of groundwater used for domestic supply in the northern San Joaquin Valley, California: U.S. Geological Survey Fact Sheet 2021-3040, 4 p. https://doi.org/10.3133/fs20213040. Producer defined S11 Soldavini, A.L., Goldrath, D.A., Shelton, J.L., Johnson, T.D., and Watson, E., 2021, Groundwater-quality data in the Coachella Valley Domestic Supply Aquifer Study Unit, 2020: Results from the California GAMA Priority Basin Project (ver. 2.0, May 2022): U.S. Geological Survey data release, https://doi.org/10.5066/P9UYXI95. Producer defined S12S13 Balkan, M., Levy, Z.F., Dupuy, D.I., Shelton, J.L., Johnson, T.D., and Watson, E., 2021, Groundwater-quality data in the Modesto-Turlock-Merced Domestic-Supply Aquifer Study Unit, 2020-2021: Results from the California GAMA Priority Basin Project: U.S. Geological Survey data release, https://doi.org/10.5066/P96R55KQ. Producer defined Report_Ref String 5 0 0 Shape_Leng Shape_Leng Double 19 0 0 Shape_Area Shape_Area Double 19 0 0 Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. The entity and attribute information provided here describes the tabular data associated with the data set. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information. U.S. Geological Survey GS ScienceBase mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov Although this data set has been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Vector Digital Data Set (Polygon) https://doi.org/10.5066/P931PZRC None. No fees are applicable for obtaining the data set. 20230124 Elise Watson U.S. Geological Survey, SOUTHWEST REGION Physical Scientist mailing address

4165 Spruance Road

San Diego CA 92101-0821 US 619-225-6426 619-225-6436 ewatson@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time 20240809 14061500 1.0 FALSE GAMA_PBP__SAA_Grid_Cells 002 0.000 Projected GCS_WGS_1984 Linear Unit: Meter (1.000000) WGS_1984_Web_Mercator_Auxiliary_Sphere <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.3.0'><WKT>PROJCS[&quot;WGS_1984_Web_Mercator_Auxiliary_Sphere&quot;,GEOGCS[&quot;GCS_WGS_1984&quot;,DATUM[&quot;D_WGS_1984&quot;,SPHEROID[&quot;WGS_1984&quot;,6378137.0,298.257223563]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433]],PROJECTION[&quot;Mercator_Auxiliary_Sphere&quot;],PARAMETER[&quot;False_Easting&quot;,0.0],PARAMETER[&quot;False_Northing&quot;,0.0],PARAMETER[&quot;Central_Meridian&quot;,0.0],PARAMETER[&quot;Standard_Parallel_1&quot;,0.0],PARAMETER[&quot;Auxiliary_Sphere_Type&quot;,0.0],UNIT[&quot;Meter&quot;,1.0],AUTHORITY[&quot;EPSG&quot;,3857]]</WKT><XOrigin>-20037700</XOrigin><YOrigin>-30241100</YOrigin><XYScale>148923141.92838538</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>102100</WKID><LatestWKID>3857</LatestWKID></ProjectedCoordinateSystem> 20240905 13515600 20240905 13515600 Esri ArcGIS 13.3.0.52636 GAMA_PBP__SAA_Grid_Cells Shapefile 0.000 dataset EPSG 6.18.3(9.3.1.2) 0 20240905