Site Report: Whittier Small Boat Harbor Dredge Stockpile
| Site Name: | Whittier Small Boat Harbor Dredge Stockpile |
|---|---|
| Address: | Harbor Road; Near Railroad Tunnel Entrance, Whittier, AK 99693 |
| File Number: | 2114.38.020 |
| Hazard ID: | 25647 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 60.780173 |
| Longitude: | -148.729609 |
| 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 small boat harbor dredging project was originally permitted for an in-water disposal of dredge spoils by USACE. It became apparent early on in the project that the material being dredged was contaminated with hydrocarbons from the large fuel spills that occurred just upland of the SBH as a results of the 1964 earthquake and tsunami. The material caused a heavy sheen on surface water when disturbed, so sorbent boom was placed around the dredge area for the duration of the project. Approximately 15,000-20,000 cubic yards of material contaminated with diesel fuel was dredged from the harbor and stockpiled on property owned by ARRC near the tunnel entrance.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 4/6/2011 | Document, Report, or Work plan Review - other | Reviewed workplan to transport and stockpile contaminated dredge spoils from the Whittier Small Boat Harbor (SBH) to a location just north of the tunnel entrance on property owned by ARRC. Material will be dredged, allowed to dewater back into the SBH, then transported to the lined stockpile, which will eventually contain approximately 15,000-20,000 cy of material. The stockpile will be be covered and any drainage will be collected and evaluated for disposal. It is anticipated that the stockpile will be in place for up to two years. | Bill O'Connell |
| 4/21/2011 | Site Added to Database | A new site has been added to the database | Mitzi Read |
| 4/25/2011 | Exposure Tracking Model Ranking | Initial ranking with ETM completed for source area id: 79079 name: Whittier Small Boat Harbor Dredge Stockpile | Bill O'Connell |
| 5/3/2011 | Site Visit | Site visit to day and meeting with USACE, USCG, PND, and City of Whittier | Bill O'Connell |
| 2/16/2012 | Update or Other Action | Discussion today with consultants to City of Whittier regarding dredge stockpile work plan development | Bill O'Connell |
| 7/26/2012 | Document, Report, or Work plan Review - other | Reviewed stockpile characterization work plan. Ten boreholes will be advanced to within 2-3 feet of the bottom liner. Three samples will be collected per borehole from areas with the highest field screening results and analyzed for DRO, RRO, GRO, and BTEX. 10% of samples will also be analyzed for PAHs. | Bill O'Connell |
| 10/29/2012 | Document, Report, or Work plan Review - other | Reviewed Characterization Report of Dredging Waste Stockpile form the Whittier Small Boat Harbor Improvements. Boreholes were advanced into the stockpile in 10 locations, stopping approximately 2-3 feet above the bottom liner, and field screening was conducted at one-foot intervals. Soil samples were collected from various intervals throughout the pile to provide for adequate coverage of the entire pile. No contaminants were detected above cleanup levels. DRO was detected up to 200 mg/kg and GRO was detected up to 29 mg/kg. Benzene was not detected. | Bill O'Connell |
| 10/26/2015 | Potentially Responsible Party/State Interest Letter | Sent interest letter inquiring about the status of the stockpile, and requesting plans for disposal or reuse. | Chelsy Passmore |
| 4/11/2019 | Exposure Tracking Model Ranking | A new updated ranking with ETM has been completed for source area 79079 Whittier Small Boat Harbor Dredge Stockpile. | Chelsy Passmore |
| 4/30/2019 | Cleanup Complete Determination Issued | The Alaska Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed a review of the environmental records associated with the Whittier Small Boat Harbor Dredge Stockpile located on Harbor Road near the railroad tunnel entrance in Whitter. Based on the information provided to date, it has been determined that the contaminant concentrations remaining on site do not pose an unacceptable risk to human health or the environment and no further remedial action will be required unless new information becomes available that indicates residual contaminants may pose an unacceptable risk. | Chelsy Passmore |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | < Method 2 Most Stringent | Soil | |
| Soil |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. | |
| Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) |
| Hazard ID | Site Name | File Number |
|---|---|---|
| 6 | Port of Whittier (FUDS - small boat harbor area) | 2114.38.017 |
| 1314 | Defense Fuel Support Point Whittier | 2114.38.011 |