The screenMaterial in a WellConstruction record is important for sites with aggressive contaminants. PVC screens are common and inexpensive but can sorb organic compounds like BTEX, potentially biasing low concentrations. Stainless steel screens are preferred for sites where solvent or fuel contamination is high and sorption would affect analytical accuracy. Regulatory guidance sometimes specifies screenMaterial requirements for particular programs, and auditors may review this field when evaluating data quality.
Technical section
Data model, API, and internals — visible to developers.