| Action Date |
Action |
Description |
DEC Staff |
| 2/12/2014 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 79603 name: Lead Contamination - Unknown Source |
Mitzi Read |
| 3/3/2014 |
Document, Report, or Work plan Review - other |
DEC received a Shannon & Wilson Stockpile Sampling report for lined, covered 45 cubic yard (cy) stockpile at Lot 4, Block 66 in Wrangell. Three multi-increment (MI) soil samples and one grab samples were collected and submitted to SGS for analysis. MI soil samples were analyzed for total lead and TCLP lead. Analytical soil sample results for ethylene dibromide (EDB) and ethylene dichloride (EDC) were below laboratory reporting limits and cleanup levels. MI stockpile sample results for total lead were 621, 586 & 1,190 mg/kg. Soil sample leachate TCLP results were 2.15, 1.80 & 3.84 mg/L. The RCRA threshold for hazardous waste determination is 5 mg/L. |
Amy Rodman |
| 3/4/2014 |
Site Added to Database |
A new site has been added to the database |
Mitzi Read |
| 3/6/2014 |
Update or Other Action |
Source Area ID 79603 and associated ETM ranking (see 2/12/14 action) moved from Hazard ID 26204 after lead contamination was determined to be unrelated to regulated underground storage tanks and Hazard ID 26212 was added to track this contamination separately. |
Mitzi Read |
| 6/12/2014 |
Workplan Requested |
On June 12, 2014 DEC sent a letter requesting a work plan for conducting additional site characterization and interim removal action for the lead contamination remaining at the site. |
Robert Weimer |
| 7/9/2014 |
Document, Report, or Work plan Review - other |
On behalf of the City of Wrangell their consultant submitted a work plan for conducting additional site characterization and interim removal action for the lead contamination remaining at the site. The work plan proposes to excavate the remaining lead contaminated soil, collected confirmation samples from the excavation (total lead and TCLP lead), install and sample (for total lead) three monitoring wells to help assess lead groundwater contamination, collect total lead and TCLP lead samples from the excavated soil (this is not to include the clean backfill soil that was imported for fill the 2012 UST excavation), and provide a report of the results of this sampling. They proposed to conduct the work in the summer of 2014. |
Robert Weimer |
| 3/9/2015 |
Update or Other Action |
Project management transferred to Wanstall. Electronic mail request sent to the Public Works Director for information on the condition and location of the contaminated soil stockpiles generated from the UST closure by removal transported, with DEC approval, for storage between liners at Lot 4, Block 66, Wrangell Industrial Subdivision, on 5th Street. Recommended testing the soil for SPLP suitability for land spreading at a proper location. |
Bruce Wanstall |
| 11/20/2015 |
Update or Other Action |
Discussion with Director of Public Works about the lead contaminated soil stockpile stored on City of Wrangell land. Requested a plan for off-site disposal of the soil to a Subtitle D landfill or equivalent. Based on analytical sampling by Shannon & Wilson for TCLP in June 2014, the soil is determined to be non-hazardous. |
Bruce Wanstall |
| 9/20/2016 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79603 Lead Contamination - Unknown Source. |
Bruce Wanstall |
| 3/13/2017 |
Institutional Control Record Established |
Institutional Controls established and entered into the database. |
Bruce Wanstall |
| 3/13/2017 |
Update or Other Action |
In discussion with the City and Borough of Wrangell (CBW), DEC approved land spreading the contaminated soil on fenced and gated CBW-land designated for soil disposal and located on Spur Road in Wrangell. |
Bruce Wanstall |
| 3/15/2017 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79603 Lead Contamination - Unknown Source. |
Bruce Wanstall |
| 10/10/2017 |
Update or Other Action |
Staff assigned changed from Bruce Wanstall to Robert Weimer. |
Kathryne Roldan |
| 9/24/2018 |
Offsite Soil or Groundwater Disposal Approved |
DEC approves request to transport and disposal of 45 cubic yards of contaminated soil to Columbia Ridge Landfill in Arlington, Oregon. |
Robert Weimer |
| 5/9/2019 |
Update or Other Action |
Site transferred from Robert Weimer to Jamie Grant. |
Robert Weimer |
| 7/31/2019 |
Workplan Requested |
DEC requested work plan to to determine the source, nature, and extent of the lead contamination and evaluate potential remediation and/or closure options. |
Jamie Grant |
| 12/3/2019 |
Meeting or Teleconference Held |
Teleconference held with City of Wrangell and consultant to discuss site details and development of a work plan. |
Jamie Grant |
| 8/19/2020 |
Institutional Control Record Removed |
The CSP Database indicates a Notice of Environmental Contamination (NEC) was issued and institutional controls (ICs) were instituted for onsite lead contamination which is above ADEC Soil Cleanup Levels. There are no ADEC electronic or hard copy records that document any work related to this action. The Juneau office was contacted to review letter/read files for Bruce Wanstall (former ADEC project manager) and learn if there was communication that may not have made it into the electronic or paper records; none were located. In addition, the Recorder's Office does does not appear to have record of any NEC being filed for the property. After a discussion with the City and Borough of Wrangell representative and consultant, it was determined that Bruce Wanstall was considering potential ICs for the site, but they were never issued. The database entry appears to be preliminary work. Given that the nature and extent of contamination has not yet been determined, work is still ongoing, and it was determined that the NEC and ICs were never implemented; ADEC has removed the NEC and IC's that were entered into the CSP Database on 3/13/2017. Once more information is available, IC's may be considered as a protective measure if appropriate. |
Jamie Grant |
| 8/25/2020 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 79603 Lead Contamination - Unknown Source. |
Jamie Grant |
| 11/17/2020 |
Site Characterization Workplan Approved |
ADEC has reviewed and approved a final site characterization work plan (received November 5, 2020). The work plan outlines site characterization efforts intended to delineate the horizontal and vertical extent of lead contamination in subsurface soil and to determine whether groundwater has been impacted. |
Jamie Grant |
| 3/24/2022 |
Document, Report, or Work plan Review - other |
On this date, DEC approved the report titled Site Characterization Activities Former Wilcox Automotive 309 Front Street, Wrangell, Alaska; ADEC File No. 1529.38.024. This report details site characterization activities conducted in August of 2021 at the Former Wilcox Automotive site. Site characterization included advancing eight soil borings, installing five groundwater monitoring wells, and collecting analytical soil and groundwater samples. Eight soil borings, B1 through B8, were advanced and B1 through B5 were completed as monitoring wells MW1 through MW-5. Boring B1 was placed adjacent to the location of the former gasoline UST, adjacent to sample ES10/ES26, collected in 2012. Borings B2 through B5 were placed to the north, east, south, and west, respectfully, of the former tanks. Step-out borings B6 through B8 were advanced further east (borings B6 and B7) and south (boring B8) of the former USTs based on field observations of potentially impacted soil. Lead was detected in boring B2 at 522 milligrams per kilogram (mg/kg), greater than the DEC soil cleanup level of 400 mg/kg, however, below the commercial/industrial cleanup level of 800 mg/kg. TCLP lead was detected in boring B2 (2.49 milligrams per liter [mg/L]) at a concentration less than the applicable EPA regulatory level of 5 mg/L. The remaining tested analytes were either not detected or detected below the cleanup/regulatory level.
Concentrations of total lead were detected in monitoring wells MW1 (166 micrograms per liter [µg/L]), MW2 (1,580 µg/L), MW3 (193 µg/L), and MW5 (80.9 µg/L) at concentrations greater than the DEC groundwater cleanup level of 15 µg/L. Dissolved lead was also analyzed to evaluate the contribution of sediment in the samples to the total lead observed in the groundwater samples. Dissolved lead was detected in monitoring well MW2 at a concentration of 5.05 µg/L, less than the ADEC cleanup level of 15 µg/L. The remaining tested analytes were either not detected or detected below the cleanup level. |
Brandi Tolsma |
| 3/15/2024 |
Document, Report, or Work plan Review - other |
Shannon & Wilson submitted a workplan to conduct biannual groundwater monitoring. |
Mollie Dwyer |
| 7/25/2024 |
Offsite Soil or Groundwater Disposal Approved |
DEC approved transport of a 55 gallon drum of soil containing lead at concentrations above 400 mg/kg, but less than 800 mg/kg. The soil will be disposed of at the US Ecology Grandview Idaho facility. |
Janice Wiegers |
