EPA: EPA 530/R-09-007
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Title
| Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities - Unified Guidance |
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Author
| USEPA |
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Abstract/Summary Statement
| From Executive Summary: "The Unified Guidance provides a suggested framework and recommendations for the statistical analysis of groundwater monitoring data at RCRA facility units subject to 40 CFR Parts 264 and 265 and 40 CFR Part 258, to determine whether groundwater has been impacted by a hazardous constituent release. Specific statistical methods are identified in the RCRA regulations, but their application is not described in any detail. The Unified Guidance provides examples and background information that will aid in successfully conducting the required statistical analyses. The Unified Guidance draws upon the experience gained in the last decade in implementing the RCRA Subtitle C and D groundwater monitoring programs and new research that has emerged since earlier Agency guidance." |
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Table of Contents
| CHAPTHERS: 1.OBJECTIVES AND POTENTIAL USE OF THIS GUIDANCE; 2. REGULATORY OVERVIEW; 3. KEY STATISTICAL CONCEPTS; 4. GROUNDWATER MONITORING PROGRAMS AND STATISTICAL ANALYSIS ; 5. ESTABLISHING AND UPDATING BACKGROUND; 6. DETECTION MONITORING PROGRAM DESIGN; 7. STRATEGIES FOR COMPLIANCE/ASSESSMENT MONITORING AND CORRECTIVE ACTION ; 8. SUMMARY OF RECOMMENDED METHODS; 9. COMMON EXPLORATORY TOOLS; 10. FITTING DISTRIBUTIONS ; 11. TESTING EQUALITY OF VARIANCE ; 12.IDENTIFYING OUTLIERS; 13. SPATIAL VARIABILITY ; 14. TEMPORAL VARIABILITY ; 15. MANAGING NON-DETECT DATA; 16. TWO-SAMPLE TESTS; 17. ANOVA, TOLERANCE LIMITS, AND TREND TESTS; 18. PREDICTION LIMIT PRIMER; 19. PREDICTION LIMIT STRATEGIES WITH RETESTING ; 20. MULTIPLE COMPARISONS USING CONTROL CHARTS; 21. CONFIDENCE INTERVALS; 22. COMPLIANCE/ASSESSMENT AND CORRECTIVE ACTION TESTS ; APPENDICES |
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Citation
| U.S. EPA. 2009. Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities - Unified Guidance. EPA 530/R-09-007. March |
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Method Source
| EPA |
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Source Organization Country
| USA |
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Publication Year
| 2009 |
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Special Notes
| The link provided is to the table of contents only, although the rest of the document is also available in pdf format at the same ...gwstats website. |
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Item Type
| Report / Guidance Document |
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Publication Source Type
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Government Agency (Federal, USA) |
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Purpose
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Data analysis Monitoring program design |
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Design or Data Analysis Objectives
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Compare locations Compare treatments Compliance with a threshold Continuous (sensor) data Exploring/summarizing data Relationships & correlations Temporal trends |
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Complexity
| Medium |
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Media Emphasized
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Groundwater |
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Media Subcategory
| |
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Special Topics
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Assessing and managing autocorrelation Characterizing the uncertainty of an estimated value Evaluating whether data follow a certain (e.g., normal) distribution Handling nondetects Identifying outliers |
