Overview of Available LTMO Methods

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Example Qualitative Logic for Spatial Optimization Reasons for Retaining or Adding a Well Well is needed to further characterize site, monitor concentration changes over time Well important for defining lateral or vertical extent of contaminants Well is needed to monitor water quality at a compliance point or receptor exposure point Well is important for defining background water quality Reasons for Removing a Well From a Monitoring Network Well provides spatially redundant information with a neighboring well (same constituents, short distance) Well has been dry for more than two years Contaminant concentrations are consistently below laboratory detection limits or cleanup goals Well is completed in same waterbearing zone as nearby well(s) 12
Quantitative LTMO Approaches • Application of numerical and/or statistical techniques to LTMO: – Sampling frequency for existing wells/points – Sampling locations – Filling data gaps • Provides degree of objectivity and repeatability • Requires familiarity with statistical methods, some specialized expertise 13
Page 1 and 2: Overview of Available LTMO Methods
Page 3 and 4: Definitions • Qualitative Evaluat
Page 5 and 6: LTMO Major Components General Proce
Page 7 and 8: Qualitative Considerations • Look
Page 9 and 10: Example Qualitative Logic for Optim
Page 11: Qualitative Considerations (cont.)
Page 15 and 16: Quantitative Approaches (cont.) •
Page 17 and 18: Quantitative LTMO Involves Spatial
Page 19 and 20: 19 What’s Out There?
Page 21 and 22: Limitations of MAROS • Site model
Page 23 and 24: Data Input & Data Reduction Well Ne
Page 25 and 26: Uses Delaunay Triangulation Well Re
Page 27 and 28: GTS Temporal Analysis • Flexible
Page 29 and 30: Iterative Thinning Example Concentr
Page 31 and 32: Iterative Thinning Summary 90 80 70
Page 33 and 34: 33 Base Map Example
Page 35 and 36: Spatial Analysis (cont.) • LWQR B
Page 37 and 38: Parsons’ 3-Tiered LTMO At A Glanc
Page 39 and 40: 3-Tiered Approach Qualitative Evalu
Page 41 and 42: 41 3-Tiered Approach Spatial Evalua
Page 43 and 44: Combining Qualitative & Quantitativ
Page 45: Summary • A variety of LTMO tools

Overview of Available LTMO Methods

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