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Rimrock Exploration & Development, Inc. <br />J-Bird Uranium Mine/ DMO/ EPP Geochemical Data and Analysis <br />• SPLP: Synthetic Precipitation Leaching Procedure (SPLP) is an EPA SW-846 <br />analytical method (Method 1312) designed to determine the mobility of toxic <br />organic and inorganic soil contaminants to groundwater tables below the <br />contamination. The SPLP test was developed by EPA in the late 1980's to <br />simulate acid rain effects. Regulatory criteria for SPLP constituents is not as <br />clearly defined as TCLP criteria. SPLP concentrations can be compared to TCLP <br />limits for baseline comparison studies. <br />25