GroundShiftCheck
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FIELD NOTES

Understand the signal. Ask better questions.

Short, source-led explanations that connect to tools you can actually use.

THE GROUND

Expansive soil: what a map can tell you

Clay is a clue, not a diagnosis. Learn which soil properties matter, where the map stops, and what to ask before making a repair decision.

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CHANGING CONDITIONS

Drought and foundations: keep the scale in view

A dry county and a moving foundation are not the same measurement. Use the weekly trend as context, without mistaking it for a sensor under your house.

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READ THE EVIDENCE

How to read your GroundShiftCheck report

Five distinctions make the report more useful: location accuracy, map-unit composition, depth coverage, data age and observed building symptoms.

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PRACTICAL NEXT STEPS

A homeowner’s drainage walkaround

Build a useful record of where water goes. This checklist is for observation, not a drainage design or a reason to dig near a foundation.

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AVOID GUESSWORK

Before you accept a foundation repair quote

An informative map should help you ask better questions, not pressure you into a repair. Take an evidence-first inspection brief to the appointment.

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YOUR OWN EVIDENCE

Make a useful crack observation log

Consistent records can be more helpful than one dramatic photograph. Document what changes without diagnosing the cause yourself.

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BEFORE YOU BUY

Soil map vs. geotechnical report: what is the difference?

Use the right evidence for the question. A regional soil survey and a site investigation do not describe a home at the same level of detail.

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READ THE EVIDENCE

No soil rating? Missing data is a result worth understanding

An empty cell, an urban-land component and an unavailable provider need different next steps. None should silently become a low rating.

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THE GROUND

Linear extensibility, clay and plasticity: do not mix the numbers

Three soil properties, three different meanings. Learn what an LE percentage can tell you, and why it is not a percentage chance of damage.

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CHANGING CONDITIONS

How to compare soil and drought reports without comparing the wrong thing

A newer download, a different point and a different drought week can each change a report. Find out which comparison is meaningful.

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