The AGS Quality Checker checks your entire AGS file against 40+ validation rules in one pass. It validates every geological description against BS 5930:2015+A1:2020, checks depth continuity, spatial consistency, date sequences, data completeness and relationships.
Results are grouped by location so you can quickly see which boreholes, trial pits or window samples have issues. Each issue is classified as an error, warning or info with a clear explanation and rule reference.
How to use Upload your AGS file using the dropzone. The file is parsed in your browser, then the data is sent to the validation engine for checking. Results appear within a few seconds. Click any location to expand and see its issues.
What it checks The validator runs 40+ rules across seven categories: BS 5930 soil description validation (25+ rules covering modifier order, soil combinations, consistency/density, angularity, colour, secondary proportions, strength terms, weathering, bedding), depth checks (overlaps, gaps, exceeds final depth), spatial checks (missing coordinates, duplicates), date checks (sequence errors, future dates), completeness (missing required fields), relationship checks (orphan records), and data quality (suspicious values, unit consistency).
Limitations Limited to 3 AGS files per day.
Maximum file size is 5 MB, covering most individual ground investigations.
For a single description check without uploading a file, use the BS 5930 Soil Description Checker tool.
Revision history 7 April 2026: Initial release - full AGS validation with 40+ rules covering BS 5930 descriptions, depth, spatial, dates, completeness and data quality.
Disclaimer This tool is provided for educational and general information purposes only. It is not a substitute for professional engineering advice, design or verification.
Diggy and its contributors are not licensed engineering consultants and no results generated by this tool should be used directly for construction, design or safety-critical decisions.
All values and outputs are based on published empirical correlations and should be independently checked and confirmed by a qualified geotechnical engineer before use.
By using this tool, you accept full responsibility for how you interpret and apply the information provided.
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