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Determine Site Characteristics
Determine Need for Pathway Evaluations
No further
YES
Exclusions Met?
Evaluation Needed
Tier I
NO
Identify Relevant Pathways
Identify Contaminants of Concern
Compile Existing Information
for each Pathway
Evaluate Contaminant Pathways of Concern
Surface
Plant
Animal
Effluent
Leachate
Volatiles
Runoff
Uptake
Uptake
Tiers I-IV
NO
Proceed to Higher Tiers
Information Sufficient?
as Needed
YES
Pathway Decisions
Evaluate Contaminant Control Measures as Needed
Figure 2-1.
Flowchart illustrating the overall evaluation process for CDF pathways
2-3
Chapter 2 Structure and Approach of the UTM
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