Additional Information

Field Value
Data last updated July 21, 2026
Metadata last updated July 21, 2026
Created July 21, 2026
Format HTML
License License not specified
Abstract TWDB GAM landing page for the Nacatoch Aquifer (MODFLOW-2000). Direct model-archive download link not yet independently verified via a Tapis test run.
Temporal Coverage Start 2009-01-01
Temporal Coverage End 2009-12-31
Program Area Groundwater
Data Contact Email gam@twdb.texas.gov
Caveats and Usage Regional GAM for planning and screening; not for site-specific design. Spatial extent is an approximate bounding box derived from GMA 8 member-county boundaries (TACC SUBSIDE texas_counties layer), not the precise model grid extent.
Categories Groundwater
Primary Tags
Secondary Tags
Collection Method Model Output
Quality Control Level TWDB-adopted GAM
spatial { "coordinates": [ [ [ -100.151968314, 30.023275165 ], [ -94.042906845, 30.023275165 ], [ -94.042906845, 33.990395922 ], [ -100.151968314, 33.990395922 ], [ -100.151968314, 30.023275165 ] ] ], "type": "Polygon" }
AbstractTWDB GAM landing page for the Nacatoch Aquifer (MODFLOW-2000). Direct model-archive download link not yet independently verified via a Tapis test run.
CategoriesGroundwater
Caveats usageRegional GAM for planning and screening; not for site-specific design. Spatial extent is an approximate bounding box derived from GMA 8 member-county boundaries (TACC SUBSIDE texas_counties layer), not the precise model grid extent.
Collection methodModel Output
Data contact emailgam@twdb.texas.gov
Has viewsFalse
Idcffc5316-5a1c-46a5-ba68-5c81928f8358
Package idaae21134-8c61-4683-abb1-1107c433b175
Position0
Program areaGroundwater
Quality control levelTWDB-adopted GAM
Spatial{'type': 'Polygon', 'coordinates': [[[-100.151968314, 30.023275165], [-94.042906845, 30.023275165], [-94.042906845, 33.990395922], [-100.151968314, 33.990395922], [-100.151968314, 30.023275165]]]}
Stateactive
Temporal coverage end2009-12-31
Temporal coverage start2009-01-01