Site Report: ADOT&PF SREB - Beaver
| Site Name: | ADOT&PF SREB - Beaver |
|---|---|
| Address: | N Bank of Yukon River, South of Airstrip, Beaver, AK 99724 |
| File Number: | 790.38.001 |
| Hazard ID: | 4022 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 66.362045 |
| Longitude: | -147.401137 |
| 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
The Alaska Department of Transportation and Public Facilities (ADOT&PF) is planning to construct a concrete floor in the Snow Removal Equipment (SRE) building at the Beaver Airport. During the evaluation of the shop floors, the presence of contamination was identified on the gravel floor of the SRE building at the Beaver Airport. Nortech estimates that less than 1.2 cubic yards of impacted soil remain at the building. Most of the stains on the floor appear to be from hydraulic fluid and diesel.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 12/16/2003 | Cleanup Plan Approved | Cleanup workplan approved for the limited soil contamination present in the SRE building. This work will be completed in the summer of 2003 while installing a concrete floor in the building. | Deborah Williams |
| 12/17/2003 | Site Added to Database | DRO and hydraulic fluid contamination. | Deborah Williams |
| 12/17/2003 | Site Ranked Using the AHRM | Preliminary ranking. | Deborah Williams |
| 5/2/2005 | Update or Other Action | Final Field Report for Beaver received by the Department. Approximately 40 cubic yards of contaminated soil was excavated and stockpile on site. There is an estimated 225 cubic yards of POL contaminated soil remaining beneath the SREB floor. Laboratory results from soil remaining in place have maximum concentration of 533 mg/kg DRO. | Deborah Williams |
| 4/4/2006 | Conditional Closure Approved | Soil sampled from the limits of the excavation contained soil contamination up to 550 mg/kg diesel range organics (DRO) and that 225 cubic yards of soil above the most stringent DRO cleanup level of 250 mg/kg might remain in the ground. Site was capped with geomembrane, concrete pad and site is inside the SREB. | Shannon Oelkers |
| 4/4/2006 | Institutional Control Record Established | In accordance with 18 AAC 75.325(i), ADEC approval is required prior to removal and/or disposal of soil or groundwater from this site. | Shannon Oelkers |
| 3/30/2011 | Institutional Control Compliance Review | IC review conducted, PM changed to IC Unit, tickler updated, and periodic reporting requirement added. | Evonne Reese |
| 5/27/2014 | Institutional Control Update | An IC reminder letter was issued to the responsible party on this date. | Kristin Thompson |
| 7/15/2014 | Institutional Control Update | Contacted by ADOT regarding proposed movement and landspreading of a stockpile that has been stored on a liner and covered onsite. This stockpile was mentioned in the 2006 Record of Decision letter and contains about 40 cubic yards of soil. The 2006 letter mentions that the soil was approved for incorporation into base material from the airport apron. Two samples were taken on July 3, 2014 in locations that showed the highest PID readings and were analyzed for DRO and RRO. One of the samples showed concentrations below the cleanup levels for both DRO and RRO and the other sample had DRO levels at 522 mg/kg and RRO at 2930 mg/kg. The cleanup levels being used are Method 1 Category B which is DRO 200 mg/kg and RRO 2000 mg/kg. The proposed location for the landspread soils is not in an environmentally sensitive area and is over 1,000 feet from any surface water or drinking water intakes. Approval was given for this project to proceed. | Evonne Reese |
| 8/6/2019 | Institutional Control Compliance Review | An Institutional Controls reminder letter e-mailed to the responsible party on this date. | Mossy Mead |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| CS Database Notation And Letter To Landowner/RP |
Requirements
| Description | Details |
|---|---|
| Excavation / Soil Movement Restrictions | In accordance with 18 AAC 75.325(i), ADEC approval is required prior to removal and/or disposal of soil or groundwater from this site. |
| Groundwater Use Restrictions | In accordance with 18 AAC 75.325(i), ADEC approval is required prior to removal and/or disposal of soil or groundwater from this site. |
| Periodic Review | In five year frequencies, verify with the RP that site conditions have not changed. |
No associated sites were found.