Columbia Bottoms Observation Well

Well Owner: Missouri Department of Conservation

Location: SE 1/4 NE 1/4 Sec. 18, T. 47 N., R. 8 E

St. Louis County

Period of record: June 1957 to present

Land surface elevation: 432.5 feet, msl

Date installed: June 24, 1957

Well log number: 16,274

Water level when drilled: 17.6 feet

Total depth: 104 feet

Casing depth: 100 feet

Screen length: 4 feet

Producing aquifer: Mississippi River alluvial aquifer

Formations open to production: Quaternary alluvium