Wellhead Zones
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Maps
Groundwater Protection Zone
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WUDR
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Observation Wells
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System Network
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Production Wells
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Surface Hydrology
About This map shows the plateau basins with their CHamoru names. Other Versions Click on the icon to view the LiDAR Imagery version of the
Nitrate-N and Sources
About This map illustrates the nitrate concentrations in production wells. The contents of this analysis overlays the map of the Northern Guam Lens Aquifer (NGLA).
NGLA Map
About The Northern Guam Lens Aquifer (NGLA) is Guam’s major source of utility water, from which military and government of Guam draw up to 90%