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Date: December 19, 2007 | Back to the DEC's Red Dog Mine main page | |
| Status: Active | |||
| Location: North of Kotzebue, AK | |||
| ADEC Contaminated Sites Contact: Rich Sundet, Project Manager - 907-269-7578
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DEC Risk Assessment Checklist and Tentative Risk Assessment Schedule for the
DeLong Mountain Regional Transportation System (DMTS) Transportation Corridor
| Task Number | Check | Tasks | Date | Comment |
|---|---|---|---|---|
| 1 | þ | Risk Assessment Scoping Meeting | August 22, 2002 | DEC Project Manager; DEC Risk Assessment Staff and consultants; Responsible Person (RP); and RP consultants |
| 2 | þ | Teck Cominco submits revised Conceptual Site Model (CSM) | Early Oct.2002 & Mid Dec. 02 | Identifies all potential exposure. Submitted to DEC project manager. Second revised version submitted Mid-Dec. addressing DEC comments. |
| 3 | þ | DEC Approves Conceptual Site Model | January 22, 2003 | |
| 4 | þ | Teck Cominco submits Draft Work Plan for the Risk Assessment | January 2003 | Includes CSM identifying all completed pathways. Submitted to DEC project manager. |
| 5 | þ | Public review and comment period on Draft Work Plan, including human health and ecological risk | Mid-Jan. - late Feb. 2003 | 30-day Public Notice Period during Feb. 03 for comments on the Draft Work Plan, including public meetings |
| 6 | þ | DEC works with Teck Cominco to address DEC's concerns and public comments on the risk assessment work plan. | Mid-March - Dec. 2003 | To DEC project manager |
| 7 | þ | Field sampling: Teck Cominco develops a Sampling Plan to fill in soil and other physical data gaps identified during the work plan process* Data gathered in summer. | Mid-June 2003 | DEC approves sampling plan |
| 8 | þ | DEC provides comments to Teck Cominco on the draft risk assessment workplan and publishes Responsiveness Summary (PDF 47K) | December 2003 and early February 2004 | |
| 9 | þ | Teck Cominco submits a revised Risk Assessment Work Plan. |
Early February 2004 | |
| 10 | þ | DEC provides comments regarding revised Risk Assessment Work Plan (PDF 556K). | Mid-April 2004 | |
| 11 | þ | DEC approves Sampling Plan and publishes Responsiveness Summary. | Early June 2004 | |
| 12 | þ | More field sampling:Teck Cominco gathers data on plants and animals. Data collected in summer. | Early June 2004 | DEC approves sampling plan |
| 13 | þ | Teck Cominco submits final response to DEC revised Risk Assessment Work Plan comments. | Mid-September 2004 | |
| 14 | þ | Comment resolution meeting. Discussions on-going between DEC and Teck Cominco. | Mid-April to early October 2004 | |
| 15 | þ | DEC approves revised Risk Assessment Work Plan and publishes Responsiveness Summary (response to comments on draft) | October 20, 2004 | For the revised risk assessment work plan |
| 16 | þ | DEC Reviews draft Risk Assessment report | September 8, 2005 | Comments provided to RP after a public notice period, April 12 - July 11, for comments on the draft Risk Assessment Report |
| 17 | þ | Teck Cominco Submits response to DEC Risk Assessment Comments | November 10, 2005 to June 28, 2007 | To DEC project manager |
| 18 | þ | Comment Resolution Meeting | June 29 to October 30, 2007 | For the risk assessment draft Report |
| 19 | þ | DEC Approves the Risk Assessment Report | December 19, 2007 | For the risk assessment final Report |
| 20 | o | DEC Makes Risk Management Decision and Approves Alternative Cleanup Levels, Remedial Action, or No Further Action | TBD | |
*Some tasks may occur concurrently **TBD = To be determined |
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