| Action Date |
Action |
Description |
DEC Staff |
| 8/1/1992 |
Update or Other Action |
(Old R:Base Action Code = SI - Site Investigation). Site assessment work performed in August, 1992. 26 borings drilled and analyzed for TPH, DRO, GRO, and BTEX. Investigation located between wellhouses 7 and 11. TPH and DRO contamination was found in gravel pad. |
Scott Rose |
| 8/26/1993 |
Update or Other Action |
ADEC received the BP document "Quality Assurance and Sampling Plan for PBU Base Camp Gravel Remediation" dated August 26, 1993. |
Scott Rose |
| 8/31/1993 |
Update or Other Action |
BP requested in a letter dated August 31, 1993 for an alternative cleanup level of 1,000 mg/kg of petroleum hydrocarbons for gravels around the utiliway which runs through the pad adjacent to the refueling station. |
Scott Rose |
| 5/10/1994 |
Update or Other Action |
(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). In-situ thermally enhanced bioremediation plan approved. Project to be operated for 3 years. ADEC and DNR will evaluate the effectiveness of the system. |
Scott Rose |
| 6/13/1994 |
Cleanup Plan Approved |
In a letter dated 6/13/1994, ADEC approved the in-situ SVE system proposed by BP in its June 2, 1994 cover letter, which enclosed the work plan titled "In-situ Remediation Plan Base Operations Center Refueling Area Prudhoe Bay Unit Western Operating Area" dated June 1994. The BP plan called for submitting annual progress reports to DEC. |
Scott Rose |
| 8/1/1994 |
Update or Other Action |
(Old R:Base Action Code = SI - Site Investigation). A phase II site assessment workplan was submitted by ARCO to delineate the extent of contamination ot this pad. Investigation will identify if contamination is localized around each well house or if it is more extensive. |
Scott Rose |
| 10/1/1994 |
Site Added to Database |
Diesel and gasoline contamination. |
Scott Rose |
| 8/29/1995 |
Update or Other Action |
ADEC informed BP that the work plan approved by ADEC on June 13, 1994 specified that it would submit annual progress reports to ADEC and DNR at the end of each calendar year. The letter noted that ADEC had not yet received any annual report or data summaries. |
Scott Rose |
| 9/19/1995 |
Update or Other Action |
Meeting with BP to review 1st year of operation. System installation took longer than expected. All parties agreed to officially start the remedial process with the treatment year starting September, 1995. |
Scott Rose |
| 9/19/1995 |
Update or Other Action |
BP hand delivered to ADEC the report "Interim Report BOC Fuel Station Remediation Project 1994-1995" dated September 4, 1995. |
Scott Rose |
| 10/12/1995 |
Update or Other Action |
ADEC provided comments to BP on 10/12/1994 regarding its "Interim Report BOC Fuel Station Remediation Project 1994-1995" dated September 4, 1995. ADEC requested pore water sampling for DO and petroleum hydrocarbons if the water level does not fall sufficiently, and additional sparging wells will also need to be installed if the existing configuration cannot oxygenate the pore water between wells. |
Scott Rose |
| 11/17/1995 |
Update or Other Action |
BP replied to ADEC regarding its 10/12/1995 letter to BP. |
Scott Rose |
| 11/17/1995 |
Update or Other Action |
(Old R:Base Action Code = CORR - Correspondence (General)). VES system being operated as a sparging system due to high water. Will monitor water levels until November 31, 1995 and then evaluate if workplan needs to be modified to include air sparging as a potential remedial option. |
Scott Rose |
| 1/3/1996 |
Update or Other Action |
On January 3, 1996, ADEC received the BP document "BOC Fuel Station Remediation Project Status Report Fourth Quarter 1995" dated December 29, 1995. |
Scott Rose |
| 4/19/1996 |
Update or Other Action |
On April 19, 1996, ADEC received the BP document "BOC Fuel Station Remediation Project Status Report First Quarter 1996" dated April 17, 1996. |
Scott Rose |
| 9/20/1996 |
Update or Other Action |
ADEC reiterated its 3/19/1996 request for payment because it had not yet received payment for $179.85 (note the earlier letter stated $179.95). |
Scott Rose |
| 10/1/1996 |
Update or Other Action |
On October 1, 1996, ADEC received the BP document "BOC Fuel Station Remediation Project Status Report Third Quarter 1996" dated September 26, 1996. The report noted that the system remained dormant during the second quarter. |
Rich Sundet |
| 1/9/1997 |
Update or Other Action |
On January 9, 1996, ADEC received the BP document "BOC Fuel Station Remediation Project Status Report Fourth Quarter 1996" dated January 7, 1997. |
Rich Sundet |
| 5/20/1997 |
Update or Other Action |
On May 20, 1997, ADEC received the BP document "BOC Fuel Station Remediation Project Status Report First Quarter 1997 and Results of 1996 Monitoring Program" dated May 16, 1997. |
Jim Frechione |
| 8/15/1997 |
Update or Other Action |
On August 15, 1997, ADEC received the BP document "Transmittal of 1996 Progress Report BOC Refueling Site, Prudhoe Bay" dated August 14, 1997. |
Jim Frechione |
| 3/14/1998 |
Update or Other Action |
ADEC received from BP the reports titled "BOC Fuel Station Remediation Project, 1997 Soil Sampling and Analysis Results" dated March 14, 1998 and information provided by Geosphere titled "BP BOC Vehicle Refueling Facility Remedial Action, 1997 Site Closeout Soil Sampling Results" dated March 3, 1998. |
Bob Krogseng |
| 6/8/1998 |
Meeting or Teleconference Held |
ADEC discussed by phone with Gary Schultz the BP the reports titled "BOC Fuel Station Remediation Project, 1997 Soil Sampling and Analysis Results" dated March 14, 1998 and information provided by Geosphere titled "BP BOC Vehicle Refueling Facility Remedial Action, 1997 Site Closeout Soil Sampling Results" dated March 3, 1998, and their request for NFA at this site. Based on these reports, DNR did not object to closing this site. |
Bob Krogseng |
| 6/10/1998 |
Site Closure Approved |
Based upon the reports titled "BOC Fuel Station Remediation Project, 1997 Soil Sampling and Analysis Results" dated March 14, 1998, information provided by Geosphere titled "BP BOC Vehicle Refueling Facility Remedial Action, 1997 Site Closeout Soil Sampling Results" dated March 3, 1998, previous submittals and personnal communications between ADEC staff and BP staff, ADEC issued a no further remedial action letter. Data submitted showed that all eight confirmation samples met the Table II North Slope Numeric Cleanup levels for a diesel spill. ADEC also noted that if in the future, additional contamination is found, that ADEC may request further cleanup work. ADEC also informed BP that it did not object to BP disconnecting and decommissioning the BOC remediation system. |
Bob Krogseng |
| 4/11/2014 |
Update or Other Action |
The levels that were in use during the site closure decision - Table II North Slope Numeric Cleanup Levels - are the same as current Method One levels. |
Keather McLoone |
