TABLE OF CONTENTS 



Page 



LIST OF FIGURES . . v 



EXECUTIVE SUMMARY vi 



1.0 INTRODUCTION 1 



2.0 MANAGEMENT OVERVIEW 5 



3.0 APPROACH TO A TIERED MONITORING SCHEME FOR 



AQUATIC DISPOSAL 16 



3.1 Objectives 16 



3.2 Background Assumptions . 17 



3.3 Building a Logical Structure 20 



3.4 Development of DAMOS Tiered Monitoring Strategies 21 



4.0 TIERED MONITORING SCHEME FOR UNCONFINED 



AQUATIC DISPOSAL 25 



4.1 Background 25 



4.1.1 Underlying Assumptions 25 



4.1.2 Sources of Uncertainty 27 



4.2 A Three-Tiered Monitoring Protocol for Unconfined 



Disposal Mounds .29 



4.2.1 Tier One: Biological Process and Related 



Management Decisions ................................. 29 



4.2.2 Tier Two: Physical Effects and Related 



Management Decisions 33 



4.2.3 Tier Three: Chemical Effects and Related 



Management Decisions 35 



5.0 TIERED MONITORING SCHEME FOR CONFINED 



AQUATIC DISPOSAL .39 



5.1 Background 39 



5.2 A Two-Tiered Monitoring Protocol For Capped Mounds 40 



5.2.1 Tier One: Biological Processes and Related 



Management Decisions 40 



5.2.2 Tier Two: Mound Chemical Profiling and 



Related Management Decisions 48 



6.0 CONCLUSIONS 52 



