⟁ Oregon Well Data field records · 2026 survey

Oregon Well Data › Grant County › Seneca (97873)

Seneca, OR (97873): well depth, water level & drilling cost

✓ 107 OWRD records · Grant County

188 ftmedian well depth
105 ft–330 fttypical depth range
23 ftmedian static water level
20 gpmmedian yield (98 tests)

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How deep are wells in and around Seneca (97873), Oregon?

The median drilled well depth in and around Seneca (97873) is 188 ft, based on 105 wells with recorded depths in the state OWRD database. Half fall between 105 ft and 330 ft; 90% are shallower than 424 ft.

How much does it cost to drill a well in and around Seneca (97873)?

Applying published per-foot rates to the local median depth of 188 ft: drilling and casing alone typically runs $4,700–$12,220; a complete system including pump, pressure tank, and hookup typically runs $11,280–$18,800. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Seneca (97873)?

The median static water level is 23 ft below ground surface (middle half of wells: 12 ft–46 ft), from 93 measurements.

Drilled depth distribution

0–50 ft 2 50–100 ft 15 100–150 ft 23 150–200 ft 14 200–300 ft 16 300–400 ft 19 400–600 ft 7 600+ ft 9
Looking at a specific property in Seneca (97873)?

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Get quotes from drillers who work in Seneca (97873)

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Part of Grant County well records.

Method: medians computed from OWRD records (water wells only (log type 'Water Well' — monitoring wells and geotechnical holes 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.