Effluent Guidelines - Oil and Gas Extraction (Synthetic-Based Drilling Fluids)

Statistical Analyses

EPA-821-B-00-015, December 2000

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• Part 1: Main Document (PDF) (70 K)
  • Cover
  • Table of Contents
  • Introduction
  • Data Description
  • Statistical Methods
  • Analysis
  • Final Effluent Limits
• Part 2: Tables and Graphs (PDF) (605 K)
  • Table 1 - Attained Significance (p-value) for Shapiro-Wilk Test
  • Table 2 - Summary Statistics for Percent Retention by Well
  • Table 3 - Summary Statistics for Uniformly-Weighted and Volume-Weighted Well Means
  • Table 4 - Compliance Analysis with BAT Option 1
  • Table 5 - Compliance Analysis with BAT Option 2
  • Graphical Presentation of Retention on Cuttings Data