Site Report: Haines-Fairbanks Pipeline MP 458.75 - GV 58
| Site Name: | Haines-Fairbanks Pipeline MP 458.75 - GV 58 |
|---|---|
| Address: | Alaska Highway Mile 1347.75, Robertson River Trailhead, Dot Lake, AK 99737 |
| File Number: | 900.38.001 |
| Hazard ID: | 4474 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 63.502639 |
| Longitude: | -143.831583 |
| Horizontal Datum: | NAD83 |
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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
Gate Valve #58 is located at PMP 458.75, AHMP 1347.75 on the north side of the Robertson River crossing. The valve box was located in 2001 and a petroleum odor was noted. Diesel range organics (DRO) is the contaminant of concern for the site. The contamination was limited. The concrete vault was removed by CH2M in 2007; the valve itself had already been salvaged by unknown parties (CH2M, 2008). It is presumed that the pipeline itself remains in place in this location. Although there were no documented petroleum releases, petroleum contamination in the soil was discovered at the vault in 2001. As a result, 20 cubic yards of contaminated soil was excavated and disposed of in 2007. Further investigation found that petroleum contaminated soil remained belowground and in 2017, approximately 41 tons of petroleum contaminated soil was excavated and disposed of. All of the confirmation soil samples had petroleum concentrations below the most stringent ADEC cleanup levels.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 7/17/2007 | Site Characterization Workplan Approved | Workplan approved this date. | Anne Marie Palmieri |
| 10/22/2007 | Site Added to Database | Site added to the database. | Mitzi Read |
| 4/29/2008 | Site Characterization Workplan Approved | USACE ROST investigation workplan approved this date. | Anne Marie Palmieri |
| 9/4/2008 | Site Characterization Report Approved | Report covering 2008 activities approved this date. 20 cy of contaminated soil was taken to OIT. 5 samples were collected; DRO of 1300 mg/kg was found on the north wall, all other walls and the excavation floor were clean. | Anne Marie Palmieri |
| 3/5/2009 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 75461 name: auto-generated pm edit Haines-Fairbanks Pipeline MP 458.75 | Anne Marie Palmieri |
| 9/29/2010 | CERCLA SI | 2008 ROST SI report approved this date. 6 probes were installed and no soil samples were collected. Petroleum-contaminated soil was found however it is fairly limited in extent. Additional investigation will be conducted in 2010-11. | Anne Marie Palmieri |
| 2/4/2013 | Update or Other Action | project manager changed from Palmieri to Morris. | Anne Marie Palmieri |
| 8/25/2015 | Update or Other Action | The ADEC and USACE participated in a scoping meeting regarding this site, however the project has been delayed because right of entry was not granted by the landowner. | Jessica Morris |
| 12/17/2015 | Update or Other Action | Staff changed to Danielle Duncan and hard file transferred to the Juneau office. | Kristin Thompson |
| 9/14/2016 | Update or Other Action | USACE proposed site closure however there are significant data gaps - these were explained via email. | Danielle Duncan |
| 9/27/2016 | Meeting or Teleconference Held | Had a meeting with the USACE and their consultant - there is potential for a removal action and we will wait and see if it is funded. | Danielle Duncan |
| 12/13/2016 | Update or Other Action | The USACE submitted a application for entry to DNR land to do work. | Danielle Duncan |
| 1/4/2017 | Update or Other Action | The scope of work is being outlined. Prior data indicates that DRO is the only contaminant of concern for the site. The scope of work/work plan will reflect this. | Danielle Duncan |
| 5/23/2017 | Site Characterization Workplan Approved | Approved the Bristol work plan this date. The scope of the project is to remove up to 200 tons of petroleum contaminated soil from the site using the 2007 test pit (CH2M) as a starting point. The excavation will be guided by head space photoionization detection (PID) readings unless there is a gas chromatography (GC) field screening laboratory available on or near to the site. | Danielle Duncan |
| 7/6/2017 | Update or Other Action | Bristol removed approximately 48 tons of petroleum-contaminated soil from Gate Valve #58. They believe they removed all of the soil above cleanup levels based on screening. The confirmation sample results are not available yet but we are optimistic that we will get clean closure at Gate Valve #58. | Danielle Duncan |
| 12/11/2017 | Document, Report, or Work plan Review - other | Reviewed the Gate Valve No. 58 Contaminated Soil Removal Action Report. 41 tons of petroleum contaminated soil were excavated - the site will be evaluated for closure. | Danielle Duncan |
| 12/11/2017 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 75461 auto-generated pm edit Haines-Fairbanks Pipeline MP 458.75. | Danielle Duncan |
| 3/30/2018 | Update or Other Action | Rec'd the USACE closure document. | Danielle Duncan |
| 5/2/2018 | Cleanup Complete Determination Issued | Danielle Duncan |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | < Method 2 Most Stringent | 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.