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Water: Coal

Effluent Guidelines: Coal Mining Document

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

Coal Mining

Proposed Coal Mining Statistical Support Document

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Complete Document: Proposed Coal Mining Statistical Support Document for Coal Remining (PDF) (152 pp., 1.6 MB)

  • Section 1: Introduction
    • Remining Program History
    • Pennsylvania DEP Remining Permitting Procedures
    • IMCC Evaluation of State Remining Programs
  • Section 2: Characterization of Coal Mine Drainage Discharges
    • Impact of Stream Flow Variation on Water Quality Parameters
    • AMD Discharge Types and their Behavior
    • Distributional Properties of AMD Discharges
  • Section 3: Statistical Methodology for Establishing Baseline Conditions and Setting Discharge Limits at Remining Sites
    • Objectives, Statistical Principles, and Issues
    • Statistical Procedures for Calculating Limits from Baseline Data
    • Statistical Characterization of Coal Mine Discharge Loadings
    • Predictions Models for BMP Design and Implementation
  • Section 4: Baseline Sampling Duration and Frequency
    • Power and Sample Size
    • Sampling Plan
  • Section 5: Long-term Monitoring Case Studies
    • Comparison of Seven Long-term Water Quality Data Sets
    • Effects of Natural Seasonal Variations and Mining Induced Changes in Long-term Monitoring Data
    • Case Studies
    • Conclusions
  • Appendix A: Example Calculation of Statistical Methods Performed in BMP Analysis

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