Informational Purpose Only
Data provided by this registry is for visualization and research. It is not an engineering certification.
Geological Data Source
All soil taxonomy and plasticity data displayed via the Foundation Risk Registry is derived from the **USDA SSURGO** (Soil Survey Geographic Database). This data is typically mapped at a scale of 1:12,000 to 1:63,360 and may not accurately reflect sub-surface conditions at a precise residential address level.
Plasticity Index interpretation
The "Liquid Limit" and "Plasticity Index" (PI) values shown are based on USDA historical records. Actual site conditions may have been altered by grading, backfilling, or local landscape changes not reflected in the national dataset.
Licensed Professional Engineers (P.E.)
Any reference to "Forensic Analysis" or "Engineering Oversight" refers to the human-led verification process available as a premium service. The automated map interface does not constitute an engagement with a Licensed Professional Engineer.
Assumption of Risk
The property owner or user assumes all risk for any diagnostic conclusions drawn from this Service. We strongly recommend a physical soil boring and a manual structural inspection for any property exhibiting signs of foundation distress.