⟁ Illinois Well Data field records · 2026 survey

Illinois Well Data › Lasalle County › Mendota (61342)

Mendota, IL (61342): well depth, water level & drilling cost

✓ 295 ISGS records · Lasalle County

200 ftmedian well depth
118 ft–286 fttypical depth range
—median static water level
20 gpmmedian yield (153 tests)

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How deep are wells in and around Mendota (61342), Illinois?

The median drilled well depth in and around Mendota (61342) is 200 ft, based on 287 wells with recorded depths in the state ISGS database. Half fall between 118 ft and 286 ft; 90% are shallower than 323 ft.

How much does it cost to drill a well in and around Mendota (61342)?

Applying published per-foot rates to the local median depth of 200 ft: drilling and casing alone typically runs $5,000–$13,000; a complete system including pump, pressure tank, and hookup typically runs $12,000–$20,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Mendota (61342)?

Few static water level measurements are recorded for this area.

Drilled depth distribution

0–50 ft 1 50–100 ft 46 100–150 ft 49 150–200 ft 41 200–300 ft 94 300–400 ft 37 400–600 ft 14 600+ ft 5
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Part of Lasalle County well records.

Method: medians computed from ISGS records (ISGS water wells; engineering, mineral and stratigraphic test borings, mine shafts, outcrops and monitoring wells are excluded, as are wells the survey records as plugged; 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.