Action Date |
Action |
Description |
DEC Staff |
11/28/1990 |
Site Ranked Using the AHRM |
Initial ranking. |
Former Staff |
10/1/1993 |
Update or Other Action |
On 10/1/1993, DNR responded to a submittal from Halliburton that included a Phase II Environmental Audit, which was performed by Quest Environmental Services.
The Phase II audit by Quest titled "The Report of Field Sampling and Findings" identified petroleum contamination in the tundra and four other locations from 28-5,000 ppm TPH. An inspection by DNR in 1993 revealed two more areas of contamination that were suspected to be higher than regulatory cleanup levels.
The audit showed that additional sampling was necessary to determine the extent of the contamination and remediation required. The report identified contamination in the areas of both fuel tanks, in the vicinity of the stained tundra area, and in the vicinity of the parking lot. The DNR inspection identified two additional areas from petroleum contamination identified by Quest: one was by the southwest corner of the northeast building , and the other next to the east side of the Otis Camp Building opposite of the stained tundra area.
The letter noted that the two recently identified areas were not sampled during the January 1993 sampling effort. DNR requested a Phase III investigation. |
Scott Rose |
11/3/1994 |
Update or Other Action |
On 11/3/1994, ADEC provided general comments to Gary Schultz of DNR on the Phase III Audit Work Plan Otis Engineering Facility dated August 25, 1994. ADEC noted that the comments were only general because of the only 1 week notice for comments after receiving the audit and that ADEC did not have the full file on this site, which prevented a detailed review.
The Phase III audit provided a history of the contaminated site, and provided a scope of work to identify better the areas of contamination. |
Scott Rose |
1/6/1995 |
Site Number Identifier Changed |
Old region = 40. |
Scott Rose |
4/20/1995 |
Update or Other Action |
In a memorandum dated 4/20/1995 from Gary Schultz to Kalu Kalu, Schultz explained the history of the site. Schultz noted that during a Phase I audit that he completed, he found that several areas were potentially contaminated and requested that Otis complete a Phase II Environmental Audit of the suspected contamination sites. Quest Environmental completed this audit and submitted it to DNR on 3/5/1993. After discussions between DNR, Halliburton requested Delta Environmental Consultants complete a Phase III audit. |
Scott Rose |
7/11/1997 |
Update or Other Action |
On 7/11/1997, ADEC provided comments to Delta Environmental Consultants regarding their work plan titled "Corrective Action Plan Otis Engineering Facility" dated 6/10/1997. The plan proposed to further identify and delineate the petroleum contamination at the site, remediation of the impacted soil by excavation and thermal treatment. |
Jim Frechione |
8/1/1997 |
Update or Other Action |
Between 7/21 and 8/1/1997 under the oversight of Delta Environmental, 2,270 cubic yards were removed from the site and thermally treated at AIC in Deadhorse.
The cleanup was reported in the report titled "Gravel Pad Excavation Assessment Report Halliburton Energy Services Otis Engineering Facility" dated 10/27/1997 that was received at ADEC on 4/27/1998. Review of the report, it appears that the soil cleanup levels have been met in most areas of the pad with exception to one area. All areas met the 500 mg/kg DRO and 100 mg/kg GRO cleanup levels except in all but two sample locations near the south and east corner of Building B. Excavation was stopped because of potential damage to the structure of the building , and contamination remained at 1,200 mg/kg GRO and 1,980 mg/kg DRO at sample location O-E3, S7; and at 5,033 mg/kg DRO at sample location OE3, S8. |
Jim Frechione |
11/30/1998 |
Update or Other Action |
On 11/30/1998, ADEC responded to the report titled "Gravel Pad Excavation Assessment Report Halliburton Energy Services Otis Engineering Facility" dated 10/27/1997. The letter noted that upon DEC's review of the report, it appears that the soil cleanup levels have been met in most areas of the pad with exception to one area. The letter noted that one water sample from surface water violated WQSs. The letter noted that 2,270 cubic yards were removed from the site and thermally treated at AIC in Deadhorse, and that all areas met the 500 mg/kg DRO and 100 mg/kg GRO cleanup levels except in all but two sample locations near the south and east corner of Building B. Excavation was stopped because of potential damage to the structure of the building , and contamination remained at 1,200 mg/kg GRO and 1,980 mg/kg DRO at sample location O-E3, S7; and at 5,033 mg/kg DRO at sample location OE3, S8.
The letter noted that because DRO was detected at O-E3, W-1 at 2.12 mg/L in water in the pad, that monitoring is required to determine if contamination levels are decreasing or increasing. ADEC expressed concern that the contamination may migrate off the pad and violate surface water quality standards. ADEC also noted that further corrective action may be necessary to ensure cleanup levels are met and that at this time, it is unknown how much contamination may have migrated off the pad and is underlying the adjacent tundra. |
Jim Frechione |
1/5/1999 |
Site Characterization Workplan Approved |
On 1/5/1999, ADEC conditionally approved Delta Environmental Consultants work plan titled "Workplan for Surface and Ground Water Sampling Former Otis Engineering Facility" dated 12/15/1998. The monitoring plan was requested because 2.12 mg/L DRO was detected in a surface water sample collected near excavation #3 and that the contamination could possibly migrate from the pad to the adjacent surface water. |
Jim Frechione |
4/6/2000 |
Update or Other Action |
Letter report from Dames and Moore with sample results from surface/groundwater monitoring event. Both intra-pad and surface water samples had detectable levels of DRO. Pad water had levels as high as 18.1 mg/L but surface water samples did not exceed 18 AAC 70 standards. It was recommended to continue monitoring. |
Jim Frechione |
12/19/2000 |
Update or Other Action |
On 12/19/2000, ADEC provided comments to Halliburton regarding their consultant Dames and Moore reported titled "Letter Report Sampling and Analysis Results Former Otis Engineering Facility Halliburton Energy Services" dated 4/6/2000. The letter reiterated that ADEC is concerned that contamination could migrate from the pad and violate water quality standards in the adjacent surface water. The letter notes that the report itself states that intra-pad DRO contamination may be migrating towards the tundra. The letter requested that a work plan be submitted to perform further sampling as recommended in the report and that the plan provide a demonstration that migration of the contaminants from the pad will not exceed surface water criteria, e.g., perform further sampling in the test pit area and analyze for TAqH and TAH, and/or perform fate and transport modeling. The letter suggests that TAqH and TAH analysis be performed on all water samplings off the pad as well to clearly determine the extent of those parameters of petroleum contamination. The letter lastly informed Halliburton of DEC's cost recovery requirements. |
Rich Sundet |
1/4/2001 |
Update or Other Action |
On 1/4/2001, ADEC received a URS report titled "Sampling and Analysis Halliburton Energy Services, Inc. Former Otis Engineering Facility" dated 1/4/2001. The report recommended that no further soil characterization is recommended, however, acknowledged that two areas remain near Building B with DRO and GRO contamination above cleanup levels. |
Rich Sundet |
1/5/2001 |
Update or Other Action |
In a 1/5/2001 submittal, Halliburton informed ADEC that its project manager is Mark C. Spencer and that it had received DEC's 12/19/2000 letter requesting a work plan and further sampling. Halliburton notified ADEC that it would request a cost estimate to perform this activity from URS. |
Rich Sundet |
4/9/2001 |
Site Number Identifier Changed |
This site was changed from Reckey 1987730920901. |
Rich Sundet |
2/17/2005 |
Site Ranked Using the AHRM |
Site reranked. GW Exposure Index changed. GW not being used as a DW source |
Linda Nuechterlein |
1/3/2008 |
GIS Position Updated |
Position updated with contaminated sites GIS |
Grant Lidren |
1/3/2008 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Grant Lidren |
5/19/2009 |
Cleanup Complete Determination Issued |
The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed a review of the environmental records associated with Halliburton Otis Engineering Facility located on Alaska Department of Natural Resources lease number ADL 47660 in Deadhorse, Alaska. Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment and no further remedial action will be required as long as the site is in compliance with established institutional controls. |
Bill O'Connell |
5/19/2009 |
Institutional Control Record Established |
Institutional Controls established and entered into the database. |
Bill O'Connell |
2/8/2012 |
Site Reopened |
DEC received a workplan from Oasis regarding hydrocarbon contamination beneath a slab when demolishing a building. |
Evonne Reese |
2/13/2012 |
Document, Report, or Work plan Review - other |
Reviewed Site Characterization Plan- Halliburton Deadhorse Pad, 2805 Spine Road. Evidence of hydrocarbon contamination was discovered in a geotechnical soil boring advanced through a concrete slab slated for demolition. The slab has been in place for approximately 40 years, and the source of contamination is unknown, but may be related to a concrete floor sump that may have cracked. The objective of this investigation is to delineate the extent of hydrocarbon impacts by collecting field screening and/or soil samples from 5 test pits. Additional test pits will be excavated as needed to delineate the extent of contamination. Test pits will be excavated to the pad/tundra interface and field screened at 1’, 3’, and 5-6’ bgs to determine sample locations. |
Bill O'Connell |
4/3/2012 |
Document, Report, or Work plan Review - other |
Reviewed work plan for the excavation of impacted soil at 2805 Spine Road. Hydrocarbon impacted material identified during site characterization activities will be excavated to the extent practicable. The top two feet of soil will be considered clean unless suspected otherwise and stockpiled for use as backfill in the excavation. Liquid water in the excavation will be allowed to freeze before excavation continues, if necessary. Confirmation soil samples will be collected from the floor and sidewalls of the excavation once field screening indicates contaminated soil has been removed. |
Bill O'Connell |
4/5/2012 |
Spill Transferred from Prevention Preparedness and Response Program |
Spill transferred by PERP staff John Ebel. Spill no. 11399925501; spill date = 12/21/11; PERP file no. 300.02.025; substance = petroleum; quantity = unknown; description: During a geotechnical survey, petroleum odors were detected in soil beneath the concrete slab. |
Mitzi Read |
4/16/2012 |
Document, Report, or Work plan Review - other |
Reviewed brief work plan for additional test pit excavation and sampling at three locations where geotechnical borings encountered evidence of hydrocarbon contamination |
Bill O'Connell |
8/2/2012 |
Document, Report, or Work plan Review - other |
Reviewed Corrective Action Report for 2805 Spine Road Facility, Deadhorse. Remedial action was conducted following building demolition and prior to the construction of new buildings at the site. Three areas of contamination were identified during geotechnical and subsequent environmental investigations at the site; two areas in the Bay #11 Building, which is suspected of being impacted by a former concrete floor sump, and one area surrounding test pit B-2, excavated beneath a former concrete slab in the southwestern portion of the pad. At the Bay #11 Building excavations, 260 cubic yards (cy) of contaminated soil were excavated from the two areas and confirmation samples were collected at the bottom and along the sidewalls of the excavation. Confirmation samples contained DRO up to 81 mg/kg. At the B-2 excavation, approximately 1,580 cy of contaminated soil were excavated and confirmation samples were collected at the base and along the sidewalls of the excavation. Confirmation samples contained DRO up to 420 mg/kg. Contaminated soil was transported to AIC in Deadhorse for thermal treatment and the excavations were backfilled with clean fill. |
Bill O'Connell |
8/14/2012 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79316 name: Concrete sump and other unknown sources |
Bill O'Connell |
8/14/2012 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79316 Concrete sump and other unknown sources. |
Bill O'Connell |
10/29/2012 |
Cleanup Complete Determination Issued |
The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed a review of the environmental records associated with the Halliburton Otis Engineering Fac. located at 2805 Spine Road in Deadhorse, Alaska. Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment and this site will be closed. |
Bill O'Connell |
10/29/2012 |
Institutional Control Record Removed |
Institutional Controls have been removed. |
Bill O'Connell |