Site Report: ADOT&PF ARFF Building Sand Point
| Site Name: | ADOT&PF ARFF Building Sand Point |
|---|---|
| Address: | Sand Point, Sand Point, AK 99661 |
| File Number: | 2646.26.002 |
| Hazard ID: | 24497 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 55.317329 |
| Longitude: | -160.519823 |
| 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 Airport Rescue and Fire Fighting (ARFF) and the Snow Removal Equipment (SRE) buildings at the Sand Point Airport are located adjacent to each other near the northeast portion of the airport. Because the two buildings are adjacent and are owned by the ADOT&PF, the two buildings were evaluated as one 'site'. DRO impacted soil and groundwater were identified at the SRE Building in the vicinity of an aboveground storage tank and former furnace. DRO impacted soil was also encountered near the ARFF building during removal of an underground storage tank. The DRO impacts from both locations has been combined into this single 'site' entry in this ADEC CSP database.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 10/13/1999 | Leaking Underground Storage Tank Release Confirmed - Petroleum | LUST Site created in CSP database for Source Area ID #77638, Hazard ID #24497. Approximately 12 yards of contaminated soil was generated during closure activities, along with a barrel of sludge that was removed from the bottom of the tank. Contaminated soil remains in-situ at levels of at least 2000 mg/kg DRO in soil at a depth of 7 feet. 93.8 mg/L DRO was detected in groundwater at MW17, which could be due to a non-UST source. | Former Staff |
| 10/13/1999 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | Soil stockpiled on site. | Colin Basye |
| 10/13/1999 | Site Added to Database | Former Staff | |
| 6/14/2004 | Update or Other Action | File number assigned and entered into the Fileroom DB and LUST DB. | Alyce Hughey |
| 6/6/2005 | Update or Other Action | File number reassigned from 2100.26.196 to 2646.26.002 | Aggie Blandford |
| 7/8/2005 | Document, Report, or Work plan Review - other | Reviewed file and closure report. Additional assessment, corrective action and remediation is required. Sent e-mail inquiry to ADOT in Anchorage requesting information on any additional work subsequent to 99 UST removal. | Donald Seagren |
| 12/6/2005 | Update or Other Action | Finalize draft Request For Proposals and send to Jim Frechione for review and processing. | Donald Seagren |
| 6/1/2006 | Document, Report, or Work plan Review - other | Reviewed and commented on DRAFT Site assessment report. | Donald Seagren |
| 6/13/2006 | Underground Storage Tank Site Characterization or Assessment | Reviewed 2006 report. Some DRO soil and GW contamination remains insitu. Natural attenuation will address remaining contamination. If it becomes accessible, additional assessment may be required. Stockpile to be landspread on site. LTM will need to be established. Copy of the final report sent to Ron Stroman @ ADOT. | Donald Seagren |
| 7/31/2006 | Long Term Monitoring Established | ADEC shall establish a GW monitoring program, subject to availability of State funding. | Donald Seagren |
| 7/31/2006 | Institutional Control Record Established | DRO contamination remains exceeding ADEC soil and groundwater cleanup levels. No GW wells may be installed without prior ADEC approval. Contaminated soil may not be moved from site without prior ADEC approval. Should subsurface contamination become accessible, ADEC will determine if additional assessment &/or corrective action work is required - at that time. | Donald Seagren |
| 7/31/2006 | Conditional Closure Approved | Remaining contamination (DRO) is subsurface. There is no unacceptable risk to human health or the environment by the subsurface contamination undergoing natural attenuation, subject to the conditions listed in the decision document. | Donald Seagren |
| 2/14/2007 | Exposure Tracking Model Ranking | Former Staff | |
| 6/17/2008 | Update or Other Action | Site transferred from Don Seagren to Paul Horwath per Linda Nuechterlein. | Alyce Hughey |
| 6/21/2013 | Update or Other Action | Project manager changed from Paul Horwath to Peter Campbell, per Paul Horwath. | Alyce Hughey |
| 6/20/2014 | Document, Report, or Work plan Review - other | Work plan approved for the sampling of on site monitoring wells. | Peter Campbell |
| 6/20/2014 | Document, Report, or Work plan Review - other | Work plan review and approval for the sampling of on site monitoring wells. | Peter Campbell |
| 11/19/2014 | Document, Report, or Work plan Review - other | Five monitoring wells located and sampled by Shannon & Wilson in September 2014. MW-23 could not be located. DRO contamination was detected in MW-11 at 90.6 mg/L up significantly from the last time the well was sampled for DRO in 2000. MW-17 had DRO concentrations at 31.1 mg/L, down from 93.8 in 2006. | Peter Campbell |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| Other | CS database notation and letter to landowner/RP (added during a QC check 4/11/2014). |
Requirements
| Description | Details |
|---|---|
| Groundwater Monitoring | |
| Groundwater Use Restrictions | |
| Advance approval required to transport soil or groundwater off-site. | |
| When Contaminated Soil is Accessible, Remediation Should Occur |
No associated sites were found.