Effluent Guidelines

Proposal Coal Mining Statistical Support Document

Section 1: Introduction (PDF Format, 50K)

1.1 Remining Program History
1.2 Pennsylvania DEP Remining Permitting Procedures
1.3 IMCC Evaluation of State Remining Programs

Section 2: Characterization of Coal Mine Drainage Discharges (PDF Format, 244K)

2.1 Impact of Stream Flow Variation on Water Quality Parameters
2.2 AMD Discharge Types and their Behavior
2.3 Distributional Properties of AMD Discharges

Section 3: Statistical Methodology for Establishing Baseline Conditions and Setting Discharge Limits at Remining Sites (PDF Format, 97K)

3.1 Objectives, Statistical Principles, and Issues
3.2 Statistical Procedures for Calculating Limits from Baseline Data
3.3 Statistical Characterization of Coal Mine Discharge Loadings
3.4 Predictions Models for BMP Design and Implementation

Section 4: Baseline Sampling Duration and Frequency (PDF Format, 24K)

4.1 Power and Sample Size
4.2 Sampling Plan

Section 5: Long-term Monitoring Case Studies (PDF Format, 2M)

5.1 Comparison of Seven Long-term Water Quality Data Sets
5.2 Effects of Natural Seasonal Variations and Mining Induced Changes in Long-term Monitoring Data
5.3 Case Studies
5.4 Conclusions

Appendix A: Example Calculation of Statistical Methods Performed in BMP Analysis (PDF Format, 104K)

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