Download or read book Final Remedial Investigation Report Weldon Spring Ordnance Works, Weldon Spring, Missouri written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The remedial investigation/feasibility study (RI/FS) process was established by the Environmental Protection Agency (EPA) to provide a structured approach to evaluate remedies for cleanup of National Priority List (NPL) hazardous waste sites.