WELDON SPRING FORMER ARMY ORDNANCE WORKS
ST. CHARLES, MO
Superfund Site Profile
The Weldon Spring Ordnance Works site is located in St. Charles County, Missouri about 30 miles west of the city of St. Louis and about 14 miles southwest of the city of St. Charles. The site is managed as two operable units (OUs). OU1 addresses contaminated soil and pipeline, and OU2 addresses groundwater.