South Carolina Well Data › Allendale County
Allendale County, South Carolina: well depth, water level & drilling cost
✓ 303 SCDES + USGS records · verified 2026-10-12
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How deep are wells in Allendale County, South Carolina?
The median drilled well depth in Allendale County is 344 ft, based on 301 wells with recorded depths in the state SCDES + USGS database. Half of all wells fall between 225 ft and 660 ft; 90% are shallower than 882 ft. Wells drilled since 2016 have a median depth of 834 ft.
How much does it cost to drill a well in Allendale County?
Applying published per-foot rates to the local median depth of 344 ft: drilling and casing alone typically runs $8,600–$22,360; a complete system including pump, pressure tank, and hookup typically runs $20,640–$34,400. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Allendale County?
The median static water level is 37 ft below ground surface (middle half of wells: 21 ft–65 ft), from 141 measurements.
How much water do wells in Allendale County produce?
The median tested yield is 175 gpm (middle half: 50 gpm–588 gpm), from 108 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Allendale County?
| Driller | Wells since 2016 |
|---|---|
| AAA Well Drilling | 3 |
| Allen | 1 |
| McCall Brothers | 1 |
| Edge Solutions | 1 |
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Well records by ZIP code in Allendale County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Allendale (29810) — 106 wells, median 355 ft
Method: medians computed from SCDES + USGS records (USGS NWIS groundwater inventory, water-supply wells only (monitoring wells, test holes and injection wells excluded), and only wells carrying a measured depth). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.