| Action Date |
Action |
Description |
DEC Staff |
| 12/12/2007 |
Spill Transferred from Prevention Preparedness and Response Program |
Site transferred by PERP staff Scot Tiernan. Spill No. 07119913103; Spill Date 5/11/07; PERP File No. 1513.02.321; Substance = Diesel; Quantity = Unknown. |
Mitzi Read |
| 12/14/2007 |
Site Added to Database |
Site added to the database. |
Mitzi Read |
| 12/26/2007 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed. |
Mitzi Read |
| 1/9/2008 |
Update or Other Action |
File setup and Cleanup Report review to determine the current status of the leaking underground tank site. ADEC sent a letter to the responsible party requesting development of a long term monitoring plan to track conditions of the surface soil contamination that was treated in-situ with soil fertilizer during the 2007 contaminated soil cleanup. |
Bruce Wanstall |
| 2/6/2008 |
Update or Other Action |
Responsible party Mason contacted ADEC to schedule site visit to develop a monitoring plan to mitigate residual oil contamination after the spring thaw . |
Bruce Wanstall |
| 8/19/2010 |
Update or Other Action |
ADEC requested that the landowner follow the environmental consultant recommendation for site investigation to evaluate the success of the in-situ treatment of residual soil contamination. The letter was sent by regular mail this date to the Mason Residence. |
Bruce Wanstall |
| 4/18/2012 |
Site Visit |
Site visit with staff (Elston & Brown). Took new GPS coordinates. |
Erik Norberg |
| 5/1/2012 |
Site Visit |
Site visit to retake GPS coordinates |
Erik Norberg |
| 10/25/2012 |
Site Characterization Workplan Approved |
DEC approved the work plan for site characterization of remediation activities to address petroleum contamination remaining in the soil from an underground storage tank. |
Erik Norberg |
| 10/26/2012 |
Site Visit |
Site visit with (Wanstall) to check on cleanup remediation activities. |
Erik Norberg |
| 9/11/2013 |
Update or Other Action |
Staff changed from Erik Norberg to Denise Elston. |
Kristin Thompson |
| 2/28/2014 |
Update or Other Action |
Spoke with homeowner and he plans on continuing in-situ remediation and will test soil either in spring or summer in preparation for site closure with IC. Letter has been drafted. |
Danielle Duncan |
| 6/4/2014 |
Update or Other Action |
Left message for homeowner reminding them that they need to have their consultant submit a workplan before sampling. |
Danielle Duncan |
| 12/29/2014 |
Update or Other Action |
Spoke with RP and they are planning to have the area sampled this summer. |
Danielle Duncan |
| 4/24/2015 |
Update or Other Action |
RP spoke with CDI and they plan on coming out there in May. |
Danielle Duncan |
| 6/15/2015 |
Cleanup Plan Approved |
Approved CDI's work plan dated June 2015 received by our office on June 11 via electronic mail. CDI plans on taking 5 subsurface soil samples from previously heating oil affected areas. One duplicate and a trip blank will also be submitted. These will be tested for DRO and one of these will be tested for GRO, PAHs, and BTEX in addition. I requested that the PID be used to guide sampling activities. |
Danielle Duncan |
| 6/23/2015 |
Update or Other Action |
Work will be delayed until mid July. |
Danielle Duncan |
| 7/2/2015 |
Update or Other Action |
RP and consultant planning on sampling tomorrow. |
Danielle Duncan |
| 9/1/2015 |
Document, Report, or Work plan Review - other |
Rec'd CDI's letter report dated 9/1/15. |
Danielle Duncan |
| 9/16/2015 |
Site Characterization Report Approved |
Approved the letter report submitted by Carson Dorn Inc. (CDI) dated September 1st 2015. CDI recommended no further action was needed on holes #1 and #2. CDI recommended that area 3 north and south continue to remediate and that sorbent pads continue to be maintained in the collection basin. The ADEC concurs that sorbent pads are still needed in area 3 and the data suggest that the petroleum may be migrating due to groundwater flux or other reasons. Area 3 south had a DRO concentration taken this year that was 10 times greater than that for 2012. In addition, although the soil sample data from 2012 and 2015 indicate that holes #1 and 2 have concentrations of DRO below the 230 mg/kg cleanup level, the ADEC recommends that these areas also continue treatment. Although not stated in the current report, the work plan had mentioned the use of fertilizer and the ADEC recommends that fertilizer be used to speed the remediation process or an excavation occur. DRO concentrations of 66,000-36,000 mg/kg are well above the inhalation hazard threshold of 12,500 mg/kg and represent a situation where remediation may take longer than expected and may present an inhalation hazard. Previous reports also noted that the impacted area is a wet muskeg and this may contribute to the differences in data collected in 2012 and 2015. |
Danielle Duncan |
| 9/29/2015 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 75528 DRO from 550-Gal HHOT. |
Danielle Duncan |
| 12/3/2015 |
Update or Other Action |
Discussed the site with the RP because 36,000 mg/kg DRO in an area (Area 3 South) that previously did not have contamination on that level was concerning. RP may hand excavate some of the soil in the area and dispose of it at Bicknell. RP may also till and add fertilizer. We will hold off on sampling until the spring. There are sorbent pads in the collection basin however no sheen. The home is located > 30 ft. from the area of concern and contaminated soil does not pose a vapor intrusion hazard. The home is supplied by city water. The area of concern is wet and muskeg. |
Danielle Duncan |
| 12/3/2015 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 75528 DRO from 550-Gal HHOT. |
Danielle Duncan |
| 7/15/2016 |
Update or Other Action |
Requested a work plan this date. |
Danielle Duncan |
| 11/14/2017 |
Update or Other Action |
Requested a work plan by January 1, 2018. Certified # 7014 2120 0001 4210 1459. |
Danielle Duncan |
| 10/12/2018 |
Workplan Requested |
Requested a work plan this date 7017 2400 0000 6055 2029. In order to issue a Cleanup Complete Determination under 18 AAC 75.380, the following data gaps and issues must be addressed: The full extent of contamination must be delineated both laterally and vertically to include the two neighboring properties, According to the reports available to the ADEC, shallow groundwater was encountered and it is currently unknown whether groundwater contamination exists on site, diesel range organics (DRO) are present up to 36,000 milligrams per kilogram (mg/kg); this is above the maximum allowable set forth in 18 AAC 75.341 Table B2, and according to the site file, only DRO data has been collected. According to the 2017 ADEC Field Sampling Guidance Appendix F, the required analyses for heating oil spills are gasoline range organics (GRO), DRO, benzene, toluene, ethylbenzene, and xylenes (BTEX), polycyclic aromatic hydrocarbons (PAHs), and volatile organic compounds (VOCs). |
Danielle Duncan |
| 5/16/2019 |
Workplan Requested |
Requested a work plan via certified mail # 7019 0140 0000 7914 8928. |
Danielle Duncan |
| 1/30/2023 |
Update or Other Action |
Emailed consultant to request an update on site status this date. A work plan was being drafted in 2019 and progress has stalled. |
Flannery Ballard |
