Site Report: Wards Cove Packing Former Steam Winch Area
| Site Name: | Wards Cove Packing Former Steam Winch Area |
|---|---|
| Address: | 2101 Bowpicker Lane, Kenai, AK 99611 |
| File Number: | 2320.38.072 |
| Hazard ID: | 25872 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 60.532582 |
| Longitude: | -151.256027 |
| 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
During a Phase I site assessment performed from August 2002 until April of 2003, dark gray stains were observed on the wood plat form surrounding the engine and steam powered winch. The stains were reported to be from grease used to lubricate the winch, and contaminant of concern to be either bunker C fuel oil or diesel fuel. On May 14, 2004 during a site characterization DRO soil contamination was encountered at 8,840 mg/kg at 2.8 feet below ground surface. On June 4, 2004 a water sample was collected from a depressed area where the former steam winch was located, where six inches of surface water was observed. A water sample was collected with RRO at 4.30 mg/L and DRO at 13.5 mg/L was detected in the surface water sample collected. A groundwater sample was collected in a down-gradient monitoring well with total PAH's at 1.362 mg/L and Acetone at 0.0272 mg/L. In July of 2004 approximately 120 cubic yards of contaminated soil was excavated and placed in the northwest corner of the landfarm at the northwest portion of the facility. Following excavation activities soil samples were collected with DRO at 321 to 116,000 mg/kg was detected at depths from 2.8 to 6 feet bgs. Additional groundwater samples were collected to confirm the presence of PAH’s and Acetone within the groundwater monitoring well, with sample results being non-detected for all analytes. On April 5th through April 6th of 2012 approximately 400 cubic yards of hydrocarbon impacted soils was excavated and hauled directly to the landfarm located at the northwest portion of the facility. The excavation was approximately 1,600 square feet, with the hydrocarbon vertical migration limited by the marine derived lean clay and silt which limits the vertical migration of contamination to groundwater. DRO was detected in the south sidewall at 4,330 mg/kg at 1.75 feet bgs, benzene in the north sidewall at 0.0485 mg/kg at 5.5 feet bgs and the excavation bottom at 7.5 feet bgs with DRO at 322, 383 and 863 mg/kg and benzene at 0.0348 mg/kg. Following the completion of remedial actions performed at this site from 2002 to 2012, residual soil contamination remains in the subsurface soil exceeding the ADEC’s Method Two ‘Migration to Groundwater’ soil cleanup levels in the area of the former Steam Winch location, northwest of the New Warehouse within the gravel parking lot. Reckey #2004-23-01-135-01
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 5/11/2012 | Site Added to Database | A new site has been added to the database | Alyce Hughey |
| 5/11/2012 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 79287 name: Former Steam Winch Area | Alyce Hughey |
| 5/21/2012 | Cleanup Complete Determination Issued | In July of 2004, approximately 120 cubic yards of contaminated soil was excavated from this site and placed in a petroleum contaminated soil landfarming area located in the west portion of the property. Following cleanup excavation work, soil samples were collected from the remaining excavation pit with DRO detected at 321 to 116,000 mg/kg at depths from 2.8 to 6 feet bgs. An additional groundwater sample was collected to confirm the presence of PAHs and acetone within the down-gradient groundwater monitoring well, however the laboratory did not detect any petroleum in the groundwater sample during this sampling event. On April 5th and 6th of 2012, approximately 400 additional cubic yards of hydrocarbon impacted soils were excavated and hauled directly to the soil treatment landfarm. This cleanup excavation encompassed approximately 1,600 square feet of land area. The vertical depth of hydrocarbon migration appeared to be limited by the presence of marine derived clay and silt soils, which impeded the downward migration of petroleum contamination. DRO was detected in the south sidewall at 4,330 mg/kg at 1.75 feet bgs, and benzene was detected in the north sidewall at 0.0485 mg/kg at 5.5 feet bgs. DRO was also detected at the base of the cleanup excavation at 7.5 feet bgs at concentrations of 322, 383, and 863 mg/kg. Benzene was detected at the base of the excavation at 0.0348 mg/kg. The cleanup actions to date have served to adequately remove contaminated soil from this site, and reduce soil and groundwater contaminant concentrations. Contamination remains on site above established soil cleanup levels; however ADEC has determined there is no unacceptable risk to human health or the environment. Movement or use of potentially contaminated soil in a manner that results in a violation of 18 AAC 70 water quality standards is unlawful. Monitoring well MW-11 needs to be removed from the site. Soils removed from the Steam Winch site (520 CY) have beed stockpiled at the land spread area. These soils will be managed under a soil landfarmeing workplan. | Peter Campbell |
| 4/23/2014 | Document, Report, or Work plan Review - other | Reviewed the Steam Winch Soil Landfarm Report, dated March 2014, prepared by Restoration Science and Engineering. The DRO concentrations from within the Steam Winch landfarm area ranged from 431 to 6,020 mg/kg, with one detection of benzene at 0.0921 mg/kg. The DRO concentrations from within the native soil beneath the Steam Winch landfarm area ranged from 294 to 3,460 mg/kg, with on detection of benzene at 0.0299 mg/kg. The detection of DRO and benzene above the ADEC soil cleanup levels from the native soils indicates that the landfarm soil was incidentally tilled into the native soil during remediation operations. The concentrations from the Area 8 landfarm area for DRO ranged from 462 to 2,630 mg/kg, RRO at 12,200 mg/kg and benzene at 0.0296 and 0.0306 mg/kg. Groundwater monitoring wells MW-1, MW-2, MW-3, MW-5, MW-12 and MW-13 were sampled on August 20 and August 21 of 2013 with only DRO being detected just at groundwater cleanup levels in MW-5 at 1.50 mg/L. | Alyce Hughey |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| Benzene | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | SoilSoil | |
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
| Hazard ID | Site Name | File Number |
|---|---|---|
| 23295 | Wards Cove Packing | 2320.26.030 |