Buyers, acquisition teams and insurance professionals preparing ground-condition follow-up.
By TrueViewly. Last reviewed:
Understand the mapped terrain
TrueViewly checks retained USGS OFR 2014-1156 karst and related geological layers at the coordinate. The compilation includes several terrain types, so the report preserves the source layer and available geological labels instead of calling every intersection a sinkhole.
- Karst context can involve soluble rock; related pseudokarst and thermokarst layers represent different geological processes.
- Several layers may intersect the same coordinate without being conflicting findings.
- A mapped unit is regional evidence, not a parcel investigation or a measured foundation condition.
Know what is not modeled
The panel does not calculate collapse probability, repair cost or building loss. It does not inventory every localized cavity, mining feature or subsidence condition.
- No intersection does not rule out unmapped or localized ground problems.
- The retained compilation covers the states, Puerto Rico and USVI, not Guam, CNMI or American Samoa.
- A 2014 geological compilation is not a current incident map or a building inspection.
Move from geology to property evidence
Use mapped terrain as a reason to seek local information relevant to the site and intended use. A geotechnical professional can determine which investigations are appropriate.
- Review local geological mapping, known subsidence records and relevant property disclosures.
- Ask about prior investigations, foundation movement, repairs and site-specific ground conditions.
- Discuss sinkhole or subsidence coverage and exclusions with the insurance professional; the map does not establish a policy entitlement.
Keep the score and evidence separate
The additional ground-and-foundation context is an evidence panel, not a new scored hazard module. It does not change the existing risk score or assert that the property is unsuitable.
- Record what is known, what remains unknown and which professional owns the next step.
- Do not convert a mapped intersection into a building-performance or underwriting conclusion.
Sources and further reading
Source publications and live agency pages may differ from the snapshot used in a report. Check the report's source dates and confirm material findings through the responsible authority.
Frequently asked questions
Does a karst intersection mean there is a sinkhole?
No. It identifies mapped regional geological context; site-specific evidence is needed to establish a sinkhole or defect.
Does no match rule out subsidence?
No. Localized, unmapped or non-karst ground problems can exist outside the retained layers.
Will the map tell me whether insurance covers subsidence?
No. Read the actual policy and confirm relevant coverage or exclusions with your agent.
TrueViewly reports are informational decision-support outputs based on available datasets and user-provided inputs. They are not certifications, legal advice, engineering opinions, insurance determinations, government approvals, or a replacement for official records and professional due diligence.