⟁ Texas Water Well Reports field records · 2026 survey

Texas Water Well Reports › Llano County › Castell (76831)

Castell, TX (76831): well depth, water level & drilling cost

✓ 554 TDLR SDR records · Llano County

150 ftmedian well depth
120 ft–205 fttypical depth range
40 ftmedian static water level
11 gpmmedian yield (393 tests)

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How deep are wells in and around Castell (76831), Texas?

The median drilled well depth in and around Castell (76831) is 150 ft, based on 554 wells with recorded depths in the state TDLR SDR database. Half fall between 120 ft and 205 ft; 90% are shallower than 260 ft.

How much does it cost to drill a well in and around Castell (76831)?

Applying published per-foot rates to the local median depth of 150 ft: drilling and casing alone typically runs $3,750–$9,750; a complete system including pump, pressure tank, and hookup typically runs $9,000–$15,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Castell (76831)?

The median static water level is 40 ft below ground surface (middle half of wells: 25 ft–58 ft), from 375 measurements.

Drilled depth distribution

0–50 ft 4 50–100 ft 50 100–150 ft 222 150–200 ft 81 200–300 ft 160 300–400 ft 31 400–600 ft 6 600+ ft 0
Looking at a specific property in Castell (76831)?

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Part of Llano County well records.

Method: medians computed from TDLR SDR records (water-supply wells only (domestic, irrigation, stock, public supply, industrial) — monitoring, environmental borings, test holes, injection and geothermal excluded; depths 0–5,000 ft), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.