This appendix contains three examples of chemical incidents requiring decisions during various operational phases of chemical incident consequence management phases. The first scenario provides an example involving a chlorine release (based on an actual incident). The second example is a case study of an actual chemical warfare agent (CWA) remediation project. The third scenario describes an example of responses that may be taken following a release of the blister agent HD. This information is provided as a template and provides general information to be used along with the information in this framework document. Table B-1 includes information on the activities that occur during each of the response phases and can be used as a guide for both examples.
Table B-1: Generic Scenario Response and Recovery Phases
RESPONSE AND RECOVERY ACTIVITIES
| Phases 2a&b | Phases 2c & 3a | ||||
|---|---|---|---|---|---|
| Notification | First Response | Restoration Characterization | Restoration Remediation (Cleanup) | Restoration Clearance | Recovery |
| Receive and assess information Identify suspect release sites Relay key information and potential risks to appropriate agencies | HAZMAT and emergency actions Forensic investigation Public health actions Screening sampling Determination of agent type, concentration, and viability Risk communication (e.g., public warnings and recommended protective actions) | Worker health and safety Detailed characterization of hazardous chemical Characterization of affected area/site(s) Site containment Environmental sampling and analysis Initial risk assessment Cleanup goals Waste management planning Continued risk communication | Worker health and safety Source reduction Decontamination strategy Remedial Action Plan Site preparation Waste management Decontamination of sites, items, or both Verification of de- contamination parameters Seal/cap, decommission, or demolish if necessary Continued risk communication | Worker health and safety Clearance sampling and analysis Clearance decisions Continued risk communication | Renovate or replace Resumed Use/Re-occupation decision Potential environmental and public health monitoring Continued risk communication |