Site Report: Tower Hill Mines - Livengood Camp
| Site Name: | Tower Hill Mines - Livengood Camp |
|---|---|
| Address: | MP 74 Elliot Highway; Tower Hill Mines Livengood Camp, Livengood, AK 99730 |
| File Number: | 180.38.007 |
| Hazard ID: | 25969 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 65.471259 |
| Longitude: | -148.669947 |
| Horizontal Datum: | WGS84 |
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We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.
Problems/Comments
In April 2012, a leaking pipe containing heating oil was discovered south of the walkway entrance to the 700 wing of the Tower Hill Mines - Livengood Camp. Further investigation revealed that there was historic petroleum-contaminated soil in the area. Analytical results from samples taken after initial excavation activities show that petroleum contamination remains above DEC cleanup levels.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/4/2012 | Spill Transferred from Prevention Preparedness and Response Program | Spill transferred by PERP staff Ashley Adamczak. Spill no. 12309911101; spill date = 4/20/12; substance = diesel; quantity ~30 gallons; PERP file no. 100.02.329. | Mitzi Read |
| 12/20/2012 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 12/20/2012 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 79381 name: 700 Wing Heating Oil Release | Mitzi Read |
| 9/18/2014 | Document, Report, or Work plan Review - other | Groundwater Monitoring Well Installation Corrective Action Workplan approved. (MHooper) | Willett Boger |
| 4/7/2015 | Update or Other Action | Received Groundwater Monitoring and Well Installation report from consultant. | Willett Boger |
| 6/30/2017 | Document, Report, or Work plan Review - other | Reviewed administrative file and April 2015 Groundwater Monitoring Report. Sent letter to Tower Hill Mines recommending one more well installation and another round of groundwater sampling with July 31 Deadline for workplan submittal. | Michael Hooper |
| 8/1/2017 | Update or Other Action | Received email from consultant. They are drafting a workplan to address the groundwater and soil sampling requested in the June 30th letter. | Michael Hooper |
| 9/5/2017 | Update or Other Action | Spoke with Consultant on phone, they are going to sample the monitoring wells and survey groundwater flow direction prior to installing the new monitoring well/soil borings. I approved them doing this work and writing a work plan using the resulting best available data. | Michael Hooper |
| 9/22/2017 | Site Characterization Workplan Approved | Approved workplan for installation of soil boring and well in source area. | Michael Hooper |
| 6/4/2018 | Document, Report, or Work plan Review - other | Reviewed 2017 Groundwater Monitoring and Well Installation Report. Groundwater at this site has not been impacted and the extents of contamination in soil have been delineated. The site is ready for a cleanup complete determination. Mailed Letter requesting groundwater monitoring well decommissioning prior to site closure. | Michael Hooper |
| 7/18/2018 | Update or Other Action | Monitoring well decommissioning information received. | Michael Hooper |
| 9/7/2018 | Cleanup Complete Determination Issued | A cleanup complete determination was issued for this site. Groundwater has not been impacted by petroleum contamination and mean soil concentrations are below the human health based cleanup levels for all contaminants. | Michael Hooper |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil | |
| GRO | > Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. | |
| Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) |
No associated sites were found.