The screenLength in WellConstruction tells you how much of the well column is open to the aquifer. A longer screenLength captures a larger vertical slice of the water table, which can be appropriate for thick aquifers or unconfined zones. For targeted contaminant monitoring, a shorter screenLength focused at the right depth interval is preferred. Field staff use screenLength to calculate casing volume and determine how many volumes to purge before sampling the well.
Technical section
Data model, API, and internals — visible to developers.