Generated Well Log Summary
Enter well details below, then select Generate Report.
Visual Well Profile
Calculated Results
About Well Logs
A well log is a structured record of how a groundwater well was drilled, constructed, tested, and completed. It gives owners, drillers, consultants, regulators, and future service technicians a reliable reference for the well’s physical condition. A useful log begins with identification and location details, then records the drilling method, borehole diameter, drilled depth, and final completed depth. Geological observations are normally entered by depth interval so users can understand changes in soil, sediment, and rock encountered during drilling.
Why Construction Details Matter
Casing, screen, seal, and gravel-pack information describes how groundwater enters the well and how the borehole is protected from contamination. Screen intervals are especially important because they identify the producing zone. Seal information helps document how shallow water and surface pollutants are isolated. Water-level measurements add operating context. Comparing static and pumping water levels shows drawdown, while pumping rate and drawdown allow specific capacity to be calculated. These values help evaluate well performance and can support future pump selection or rehabilitation decisions.
Using This Generator
Enter known values and add as many lithology rows as needed. The generator calculates casing length, screen length, seal interval, gravel interval, drawdown, water-column height, and specific capacity. The visual profile offers a simplified depth view of the water level, screen, and pump position. Use the generated summary for project records, client communication, or field documentation. CSV export is useful for spreadsheets and databases. PDF export creates a portable report suitable for sharing or archiving. Always review local regulatory requirements before filing an official well record, because required fields, terminology, measurement methods, and certification rules vary by jurisdiction. Consistent reference points are essential when comparing water levels over time. Record measurement dates whenever groundwater conditions may change seasonally. Keep original field notes when observations contain uncertainty or corrections. Clear records make maintenance decisions easier years after construction.
Example Well Log Data
| Item | Example | Purpose |
|---|---|---|
| Final well depth | 145 ft | Shows completed depth |
| Static water level | 35 ft | Baseline groundwater level |
| Screen interval | 100–140 ft | Identifies intake zone |
| Pumping rate | 20 gpm | Records test discharge |
| Drawdown | 20 ft | Supports performance analysis |