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All well locations from all datasets standardized on the GAMA Program's Groundwater Information System (GAMA GIS). This is a replacement of previous versions, updated quarterly. Authoritative version. WGS 84.<\/SPAN><\/P>

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All groundwater wells on GAMA Groundwater Information System, accessed April 24, 2023. <\/SPAN><\/P>

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Sources of data include (as indicated in GM_DATA_SOURCE field):<\/SPAN><\/P>

Geotracker: Wells sampled under regulated activities like cleanup and remediation. These are accessible through the California State Water Resources Control Board Geotracker web site.<\/SPAN><\/P>

USGS: Wells sampled and analyzed by the U.S. Geological Survey (USGS) through the Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project.<\/SPAN><\/P>

GAMA: Wells sampled by California State Water Resources Control Board staff for the GAMA Program Domestic Well Project.<\/SPAN><\/P>

DDW: Division of Drinking Water (DDW) wells sampled and regulated for delivered water quality under DDW oversight.<\/SPAN><\/P>

DPR: Wells sampled by the Department of Pesticide Regulation (DPR) groundwater program.<\/SPAN><\/P>

WDL: Wells in the Department of Water Resources (DWR) water quality sampling network in their water data library.<\/SPAN><\/P>

LLNL: Wells sampled for groundwater age, isotopes, or noble gas for the GAMA Program by Lawrence Livermore National Laboratory (LLNL).<\/SPAN><\/P>

NWIS: Wells sampled by the USGS and accessible via the National Water Information System (NWIS).UC Davis: Location of wells gathered from multiple local entities for use in the UC Davis Nitrate Report, under agreement with the GAMA Program.<\/SPAN><\/P>

LOCALGW: Wells sampled under various local groundwater projects. As of July 30, 2019, this only includes the domestic sampling completed by the Central Coast Regional Water Quality Control Board. \u2018<\/SPAN><\/P>

GAMA_LOCALGW: Wells sampled under local groundwater projects, generally sampled from private wells from various private and governmental organizations. Data was submitted through the GAMA Data Connection Portal.<\/SPAN><\/P>

The field, GM_DATASET_NAME can also help explain the source of the dataset.<\/SPAN><\/P>

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Direct any questions to: GAMA@waterboards.ca.gov.<\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "units": "esriMeters", "maxViewsCount": 20, "syncEnabled": true, "tables": [], "hasVersionedData": false, "hasViews": false, "layerOverridesEnabled": true, "supportsRelationshipsResource": true, "layers": [ { "name": "GAMA GIS Wells Q2 2023", "id": 0, "type": "Feature Layer", "geometryType": "esriGeometryPoint", "serviceItemId": "2d6b184566c740c988b9a2f1b2a8d4a3" } ], "spatialReference": { "latestWkid": 3857, "wkid": 102100 }, "fullExtent": { "ymin": 3834695.1353999972, "xmin": -1.38431871525E7, "ymax": 5160754.754000001, "xmax": -1.2705270189399999E7, "spatialReference": { "latestWkid": 3857, "wkid": 102100 } }, "enableZDefaults": true, "allowUpdateWithoutMValues": true, "isLocationTrackingService": false, "supportedExportFormats": "sqlite,filegdb,shapefile,csv,geojson", "capabilities": "Query,Sync,Extract", "supportsAppend": true, "syncCapabilities": { "supportsAsync": true, "supportsSyncDirectionControl": true, "supportsRegisteringExistingData": true, "supportsBiDirectionalSyncForServer": true, "supportsAttachmentsSyncDirection": true, "supportsPerLayerSync": true, "supportsRollbackOnFailure": false, "supportsPerReplicaSync": false }, "supportsDisconnectedEditing": false, "supportsSyncModelNone": true, "supportedAppendFormats": "shapefile,featureCollection", "supportsReturnDeleteResults": true, "currentVersion": 11.1, "advancedEditingCapabilities": { "supportsAsyncApplyEdits": true, "supportsApplyEditsbyUploadID": true, "supportsReturnEditResults": true, "supportedApplyEditsUploadIDFormats": "JSON" }, "supportedQueryFormats": "JSON", "initialExtent": { "ymin": 4066788.1005227645, "xmin": -1.4679854117143858E7, "ymax": 4962187.233839062, "xmax": -1.1655992128458425E7, "spatialReference": { "latestWkid": 3857, "wkid": 102100 } }, "serviceDescription": "", "editorTrackingInfo": { "allowOthersToUpdate": true, "enableEditorTracking": false, "allowOthersToDelete": false, "allowOthersToQuery": true, "enableOwnershipAccessControl": false }, "hasSyncEnabledViews": false, "copyrightText": "Created by GAMA Staff from GAMA Groundwater Information System: https://gamagroundwater.waterboards.ca.gov/gama/gamamap/public/.", "zDefault": 0, "supportsLayerOverrides": true, "serviceItemId": "2d6b184566c740c988b9a2f1b2a8d4a3" }