| 1.0 |
Introduction |
| 2.0 |
Data Collection and Evaluation |
| 2.1 |
Sampling Methodology |
| 2.1.1 |
Soil |
| 2.1.2 |
Groundwater |
| 2.1.2.1 |
Filtered Versus Unfiltered Samples |
| 2.1.2.2 |
Direct Push Versus Monitoring Wells |
| 2.1.3 |
Surface Water |
| 2.1.3.1 |
Filtered Versus Unfiltered Samples for Inorganics |
| 2.1.4 |
Sediment |
| 2.1.5 |
Air |
| 2.1.6 |
Biota |
| 2.2 |
Analytical Methods |
| 2.3 |
Quality Assurance/Quality Control |
2.3.1
|
Detection Limits |
| 2.4 |
Screening for Chemicals of Potential Concern |
| 2.4.1 |
Tier I |
| 2.4.2 |
Tier II |
| 2.4.2.1 |
Soil |
| 2.4.2.2 |
Groundwater |
| 2.4.2.3 |
Surface Water |
| 2.4.2.4 |
Sediment |
| 2.4.3 |
Tier III |
| 2.4.3.1 |
Soil |
| 2.4.3.2 |
Groundwater |
| 2.4.3.3 |
Soil Gas |
| 2.5 |
Chemical-Specific Issues |
| 3.0 |
Exposure Assessment |
| 3.1 |
Selection of Exposure Pathways |
| 3.1.1 |
Unrestricted Sites |
| 3.1.1.1 |
Media |
| 3.1.1.2 |
Receptors |
| 3.1.1.3 |
Routes of Exposure |
| 3.1.2 |
Restricted Sites |
| 3.1.2.1 |
Media |
| 3.1.2.2 |
Receptors |
| 3.1.2.3 |
Routes of Exposure |
| 3.2 |
Determining Exposure Point Concentrations |
| 3.2.1 |
Exposure Modeling |
| 3.2.2 |
Exposure of Workers to Volatiles in a Construction/Utility Trench |
| 3.2.2.1 |
Groundwater Greather Than 15 Feet Deep |
| 3.2.2.2 |
Groundwater Less Than or Equal to 15 Feet Deep |
| 3.3 |
Determining Chemical Intakes |
| 3.3.1 |
Exposure Equations |
| 3.3.1.1 |
Dermal Exposures |
| 3.3.1.1.1 |
Groundwater or Surface Water |
| 3.3.1.1.2 |
Soil or Sediment |
3.3.1.2
|
Ingestion of Contaminated Media |
| 3.3.1.2.1 |
Groundwater |
| 3.3.1.2.2 |
Surface Water |
| 3.3.1.2.3 |
Soil or Sediment |
| 3.3.1.2.4 |
Aquatic Organisms |
| 3.3.1.3 |
Inhalation |
| 3.3.2 |
Exposure Factors |
| 3.3.2.1 |
Residents |
| 3.3.2.2 |
Construction/Utility Workers |
| 3.3.2.3 |
Commercial/Industrial Workers |
| 3.3.2.4 |
Recreational Visitors/Trespassers |
| 4.0 |
Toxicity Assessment |
| 4.1 |
Carcinogens |
| 4.2 |
Non-Carcinogens |
| 5.0 |
Risk Characterization |
| 5.1 |
Carcinogens |
| 5.2 |
Non-Carcinogens |
| 5.3 |
Uncertainty Analysis |
| 6.0 |
Determining Remediation Levels |
| 6.1 |
Groundwater or Surface Water |
| 6.1.1 |
Carcinogens |
| 6.1.1.1 |
Dermal |
| 6.1.1.2 |
Ingestion |
| 6.1.1.3 |
Inhalation |
| 6.1.2 |
Noncarcinogens |
| 6.1.2.1 |
Dermal |
| 6.1.2.2 |
Ingestion |
| 6.1.2.3 |
Inhalation |
| 6.2 |
Soil or Sediment |
| 6.2.1 |
Carcinogens |
| 6.2.1.1 |
Dermal |
| 6.2.1.2 |
Ingestion |
| 6.2.1.3 |
Inhalation |
| 6.2.2 |
Noncarcinogens |
| 6.2.2.1 |
Dermal |
| 6.2.2.2 |
Ingestion |
| 6.2.2.3 |
Inhalation |
| 6.3 |
Calculation Notes |
| 7.0 |
References |
