Site Report: Texaco #61, Floor Drain / Sand Trap
| Site Name: | Texaco #61, Floor Drain / Sand Trap |
|---|---|
| Address: | 3635 Mountain View Drive, Anchorage, AK 99508 |
| File Number: | 2100.38.579 |
| Hazard ID: | 27113 |
| Status: | Active |
| Staff: | Alena Voigt, 9072697556 alena.voigt@alaska.gov |
| Latitude: | 61.224443 |
| Longitude: | -149.812966 |
| 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
On August 20, 1999 contamination was found during the removal of the floor drain and sand trap. Soil samples collected from the excavation had up to 30,000 mg/kg residual range organics (RRO), 4,900 mg/kg diesel range organics (DRO), and 0.21 mg/kg tetrachloroethene (PCE). 20 cubic yards of contaminated soil were excavated and treated. Additional contamination was found in October 2001 during the removal of the service station hoists and an additional 30 cubic yards of contaminated soil were excavated and treated. Monitoring wells were installed in 2007 and sampled until 2016. Indoor air sampling was conducted in 2017 and 2018 during frozen and non-frozen ground conditions. In 2018 the five site monitoring wells were decommissioned in accordance with an approved work plan.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 8/20/1999 | Document, Report, or Work plan Review - other | On August 20, 1999 contamination was found during the removal of the floor drain and sand trap. Soil samples collected from the 8 foot deep excavation had up to 30,000 mg/kg residual range organics (RRO), 4,900 mg/kg diesel range organics (DRO), and 0.21 mg/kg tetrachloroethene (PCE) remaining in the excavation. Twenty cubic yards of contaminated soil was removed and subsequently treated. | Robert Weimer |
| 10/17/2001 | Document, Report, or Work plan Review - other | On October 17, 2001 five test pits were dug to between 5 and 6.5 feet below ground surface and soil samples were collected. Test pit samples collected had up to 5,120 mg/kg DRO, 14,900 mg/kg RRO, and 0.907 mg/kg PCE. | Robert Weimer |
| 10/24/2001 | Document, Report, or Work plan Review - other | On October 24, 2001 30 cubic yards of contaminated soil was removed to a depth of 7 feet at the October 17, 2001 test pit locations and confirmation soil samples were collected from the excavation. Excavation samples collected had up to 0.217 mg/kg total xylenes, 5.10 mg/kg GRO, 4,040 mg/kg DRO, 9,880 mg/kg RRO, 0.707 mg/kg PCE, 235 mg/kg lead, 4.37 mg/kg arsenic, 123 mg/kg barium, and 35.7 mg/kg chromium. The other VOCs were non-detect. The stockpile sample had up to 0.168 mg/kg PCBs. | Robert Weimer |
| 6/27/2019 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 8/28/2019 | Meeting or Teleconference Held | Meeting with Shell with Shells consultant (GES) to discuss future site work for site closure. We discussed that ADEC will be reviewing the site for potential closure with ICs. | Robert Weimer |
| 12/2/2019 | Meeting or Teleconference Held | Teleconference with Shell and their consultant (GES) to discuss closure options for this site: Closure with ICs (Environmental Covenant to be prepared by the RP, with review by ADEC and ADOL prior to finalizing it for signature) or Closure without ICs (sampling in accordance with an approved work plan of areas that exceeded RRO human heath cleanup levels 99M-3 and 99M-4 to demonstrate it is below those cleanup levels). We also discussed in either case we need a revised site figure that includes the areas of S4, S5, S7, and S8. | Robert Weimer |
| 10/14/2021 | Update or Other Action | The ADEC requested a final cleanup report to be submitted to the department, per 18 AAC 75.380. | Flannery Ballard |
| 9/22/2023 | Update or Other Action | The ADEC CSP has reviewed the Final Cleanup Report, dated July 28, 2022 and provided a comment/question email to GES and RP. | Alena Voigt |
| 9/29/2023 | Meeting or Teleconference Held | Teleconference held with GES, Shell, ADEC PM and Supervisor regarding site and path towards closure. | Alena Voigt |
| 10/16/2023 | Update or Other Action | Email sent to RP, GES, and landowner with covenant template. Site moving towards closure with ICs. | Alena Voigt |
Contaminant Information
| Name | Level Description | Media | Comments |
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Control Type
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Requirements
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There are no documents for this site report.
| Hazard ID | Site Name | File Number |
|---|---|---|
| 23728 | Texaco #61, 1989 Release | 2100.26.099 |
| 24199 | Texaco #61, 1996 Release | 2100.26.100 |
| 27112 | Texaco #61, 2000 Used Oil Tank Release | 2100.26.620 |