| Action Date |
Action |
Description |
DEC Staff |
| 8/16/1993 |
Preliminary Assessment Approved |
NFRAP planned, once placed on federal docket. |
Former Staff |
| 7/19/1994 |
Update or Other Action |
(Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). "Restoration Plan" submitted by RP contractor details site investigation, sampling plan and interim cleanup. Non-regulated UST. |
Former Staff |
| 12/29/1994 |
Site Added to Database |
Federal UST, not regulated by DEC. |
Former Staff |
| 12/30/1994 |
Site Number Identifier Changed |
Changed workplan to reflect non-regulated UST site; site also encompasses multiple contamination issues. |
Former Staff |
| 5/14/1998 |
Site Ranked Using the AHRM |
Initial ranking. |
Eileen Olson |
| 7/12/2006 |
Site Characterization Workplan Approved |
Site characterization workplan for investigations at Building 300 tank, Building 602 drum storage area, concrete pad at the Sector Field Office, and the satellite pad at the Flight Service Station. (action entry by Palmieri) |
Mike Jaynes |
| 3/24/2007 |
Exposure Tracking Model Ranking |
|
Anne Marie Palmieri |
| 3/28/2007 |
Update or Other Action |
Staff reviewed site file and determined that several unregulated tanks decommissioned in 1992 and 1996 could be closed. A letter was sent to the FAA dated 3/28/06 covering Tanks: 39-A-1 and 39-A-3; regulated Tanks 39-A2, 39-E-1, 39-D-1, and 39-B-1 were also closed in this letter but are tracked on the LUST database. |
Anne Marie Palmieri |
| 3/28/2007 |
Update or Other Action |
Tank 39-A-1: This 1000 gallon underground storage tank was used for heating oil at Building 200, a former office and storage building at the SFO. The tank was removed in April 1992, as documented in the Decommissioning Assessment Report, dated 1992. Twenty-five (25) cubic yards of petroleum contaminated soil was removed and sent to Channel Sanitation in Juneau for thermal treatment. Five (5) confirmation samples were collected from the limits of the excavation at depths of 5-6 feet below ground surface (bgs) and analyzed for extractable petroleum hydrocarbons using the State of Washington analytical methods which are comparable with the DRO range as defined by DEC. All analytical results were non-detect; thus, DEC’s method two cleanup levels were met. Site closure is approved for this tank site. |
Anne Marie Palmieri |
| 3/28/2007 |
Update or Other Action |
Tank 39-A-3: This 500 gallon underground storage tank was used for heating oil at Building 302 at the SFO. The tank was removed in June 1997, as documented in the Decommissioning Assessment Report dated November 1997. Three (3) cubic yards of petroleum contaminated soil was removed and sent to a disposal facility in Washington state. Three (3) confirmation samples were collected from the limits of the excavation at depths ranging from 5-8.5 feet bgs and analyzed for DRO, GRO, and BTEX. The highest concentrations detected were DRO: 52 mg/kg, toluene: 0.02 mg/kg, xylenes: 0.02 mg/kg with GRO, benzene and ethylbenzene all non-detect. All analytical results were below DEC’s method two cleanup levels. Site closure is approved for this tank site. |
Anne Marie Palmieri |
| 3/28/2007 |
Cleanup Level(s) Approved |
Method 2 cleanup levels approved: 18 AAC 75.341, Tables B1 and B2 for the over 40-inches of precipitation climate zone for the most stringent risk based exposure pathway, specifically, diesel-range organics (DRO): 230 milligrams per kilogram (mg/kg), gasoline-range organics (GRO): 260 mg/kg, residual-range organics (RRO): 8300 mg/kg, benzene: 0.02 mg/kg, ethylbenzene: 5 mg/kg, toluene: 4.8 mg/kg, xylenes: 69 mg/kg and lead: 400 mg/kg. |
Anne Marie Palmieri |
| 8/27/2007 |
Site Characterization Report Approved |
Site Characterization report approved this date. Letter addressed Building 300 Shop Tank 39-A-4, Building 602 Drum Storage Area, SFO Emergency Generator Pad and FSS Satellite Dish 1 Pad. Additional action was requested at the Building 300 Shop Tank only. Letter is attached to the database, but a summary of the determination at each source area is included on the database as a series of updates. |
Anne Marie Palmieri |
| 8/27/2007 |
Update or Other Action |
Satellite Dish 1 Pad: The contaminated soil present adjacent to the concrete pad likely extends below the pad and cannot be removed without compromising the pad and interrupting service of the satellite dish which rests on it. Additional soil or groundwater investigation is not possible as the Juneau Facility station manager has stated that vibrations from a drill rig might interfere with signal reception. The FAA has stated that additional work is not possible until the dish is relocated at some undetermined future time due to national airspace security reasons.
The department concurs with allowing the contaminated soil to remain in place until the pad is removed. The concentrations of DRO are below the ingestion-based and inhalation-based pathway cleanup levels and thus do no present an unacceptable risk to workers in the area. Groundwater in the area is not used for drinking water. When the pad is removed, the contaminated soil will need to be sampled and cleaned up appropriately. This area is considered conditionally closed.
|
Anne Marie Palmieri |
| 8/27/2007 |
Update or Other Action |
FSS Former Emergency Generator: A concrete pad is present at the FSS where an emergency generator used to stand. Spills of both fuel and antifreeze were believed to have occurred here and no previous investigations had been conducted. Four (4) soil samples were collected and analyzed for DRO, GRO, RRO, VOCs, PAH, and glycol. Sample results for all analytes were non-detect, except for DRO. DRO was found in two (2) sample locations; on the north side, at 214 mg/kg at 2” bgs and 1,300 mg/kg at 13” bgs, and on the west side, at 1,670 mg/kg at 12” bgs with a sample duplicate of 406 mg/kg.
The contaminated soil present adjacent to the concrete pad likely extends below the pad. The department concurs with allowing the contaminated soil to remain in place until the pad is removed at some undetermined time in the future. The concentrations of DRO are below the ingestion-based and inhalation-based pathway cleanup levels and thus do no present an unacceptable risk to workers in the area. Groundwater in the area is not used for drinking water. When the pad is removed, the contaminated soil will need to be sampled and cleaned up appropriately. This area is considered conditionally closed.
|
Anne Marie Palmieri |
| 8/27/2007 |
Update or Other Action |
SFO Emergency Generator: A 10-gallon aboveground storage tank (AST) was formerly housed on a concrete pad and used to provide gasoline to a former engine generator. Stained soil had been noted in this area previously, however was not observed during the 2006 fieldwork nor was the grass in the area stressed. Six (6) samples were collected from depths of 12” bgs around the perimeter of the pad and analyzed for DRO, GRO, RRO, VOCs, with one (1) sampled for PAHs, and four (4) for lead. All of the sample results were non-detect with the exception of one DRO result of 169 mg/kg, one RRO result of 598 mg/kg, and the four (4) lead sample results with the highest concentration detected of 5.97 mg/kg.
No contaminants of concern were found to be present at levels exceeding the approved cleanup levels. Therefore, no additional characterization or cleanup actions are warranted at this area.
|
Anne Marie Palmieri |
| 8/27/2007 |
Update or Other Action |
Building 602 Drum Storage: Drums of various types of fuel and materials have been stored in this area. Ten (10) soil samples were collected around Building 602 from depths of 6-12” bgs. Groundwater was found at depths of 3-13” bgs. All of the samples were analyzed for GRO, DRO, RRO, VOC, metals, and polychlorinated biphenyls (PCBs), and half were analyzed for PAHs. Low levels of DRO were found in eight (8) samples, however only one (1) sample result of 240 mg/kg exceeded the cleanup levels. No other analytes were found at concentrations exceeding their respective cleanup levels with the exception of an arsenic result of 3.8 mg/kg, which is likely to be naturally-occurring.
Only one (1) sample result of one (1) contaminant of concern was found to be slightly exceeding the approved cleanup levels. This small volume of low-level contamination is not believed to pose an unacceptable risk to human health and the environment. Therefore, no additional characterization or cleanup actions are warranted at this area.
|
Anne Marie Palmieri |
| 8/27/2007 |
Update or Other Action |
Building 300 Tank 39-E-1: This 500 gallon underground storage tank was used for providing diesel heating oil to Building 300 at the Sector Field Office (SFO). The tank was removed in May 1997, as documented in the Decommissioning Assessment Report dated November 1997. Eighty (80) cubic yards of petroleum contaminated soil was removed and sent to a disposal facility in Washington State. Six (6) confirmation samples were collected from the limits of the excavation at depths up to 12 feet bgs and analyzed for DRO, GRO, and BTEX. The highest concentrations detected were DRO: 29,000 mg/kg, GRO: 500 mg/kg, and benzene: 0.2 mg/kg. Sampling results for all other analytes were found below the approved cleanup levels.
In October 1997, eight (8) soil borings were advanced and four (4) were completed as monitoring wells. Installation and sampling of the wells were documented in the Remedial Investigation Report, dated March 1998. Groundwater sample results found the highest concentrations detected were DRO: 2.8 milligrams per liter (mg/L), GRO: 1.2 mg/L, and toluene: 0.33 mg/L.
In 2006, one (1) additional monitoring well was installed. This well, along with three (3) of the previously installed wells were sampled during two (2) separate sampling events. The first event occurred in August 2006, with the only exceedence noted was DRO of 2.5 mg/L in MW-A10. In the November 2006 sampling event, the DRO concentration in this well was below the cleanup level, however, the GRO result was 6.3 mg/L and the benzene result was 1,610 micrograms per liter (µg/L), exceeding the cleanup levels of 1.3 mg/L and 5 µg/L, respectively. Exceedences were also noted in MW-A18 in November 2006 with a GRO result of 2 mg/L and a benzene result of 499 µg/L.
Additional characterization of the soil and groundwater in this area may be warranted in order to determine the source of the GRO and benzene contamination. However, it would be prudent to first collect another round of groundwater sampling to determine if these concentrations are consistent or were potentially a result of cross-contamination. Unless a sound basis can be found to explain these anomalous results, the department will require further action at this site.
|
Anne Marie Palmieri |
| 12/7/2007 |
Update or Other Action |
Fuel spill occurred at the Juneau Sector Field Office when ice came off the roof of the building. 250 gallons of fuel was released. |
Anne Marie Palmieri |
| 6/30/2008 |
Spill Transferred from Prevention Preparedness and Response Program |
Site transferred by PERP staff Scot Tiernan. Spill date = 12/7/06; spill no. 06119934102; PERP file no. 1513.02.312; substance = diesel; quantity = ~250 gallons.
Description: A 275 gallon heating oil tank was struck by falling ice and/or snow and the fuel line from the tank was severed. The tank had just been filled and an estimated 250 gallons were lost in the incident. Local FAA responded to this incident and conducted an initial cleanup. The FAA was planning on doing a site assessment and additional cleanup as necessary in 2007, but the project funding was delayed until at least 2009. |
Mitzi Read |
| 1/14/2010 |
Site Characterization Workplan Approved |
Approved work plan dated November 2009 for (1) characterizing the horizontal and lateral extent of soil contamination resulting from the heating oil release from the AST at the Maintenance Shop and (2) two rounds of groundwater monitoring for DRO, GRO, and BTEX near the former UST at Shop Building 300. |
Melody Debenham |
| 1/25/2010 |
Document, Report, or Work plan Review - other |
Received Technical Memorandum summarizing November 2009 groundwater sampling from 3 wells on site. Groundwater samples were analyzed for GRO, DRO, RRO, and BTEX. Benzene is the only compound reported above the cleanup level, at 11.1 ug/L in MW-A18 and 7.41 ug/L in MW-A10. |
Melody Debenham |
| 7/12/2010 |
Site Characterization Workplan Approved |
Approved the Final Site Remediation Work Plan for Federal Aviation Administration (FAA) Remote Communications Outlet/Radio Transmit Receive (RCO/RTR) Site, Juneau, Alaska. The FAA is decommissioning the RCO/RTR site and removing all associated infrastructure. Known petroleum contamination is present beneath the engine generator building at this site, associated with a former underground storage tank removed in 1997. This work plan describes field activities associated with removing the remaining contamination at the engine generator building, and sampling and decommissioning the 3 existing groundwater monitoring wells. |
Melody Debenham |
| 9/29/2010 |
Site Characterization Report Approved |
Received Technical Memorandum summarizing July 2010 groundwater sampling from 3 wells on site. Groundwater samples were analyzed for GRO, DRO, RRO, and BTEX. Benzene is the only compound reported above the cleanup level, at 11.1 ug/L in MW-A18. |
Melody Debenham |
| 9/29/2010 |
Site Characterization Report Approved |
Received a Technical Memorandum describing characterization activities to delineate the horizontal and vertical extent of the 2006 heating oil release. Based on field screening and analytical sample results, petroleum contamination related to the heating oil release is limited to the immediate vicinity of the AST and along the west side of the maintenance shop, with a maximum depth of 3 feet. |
Melody Debenham |
| 4/1/2011 |
Final Cleanup Report Reviewed |
Approved the Final Site Remediation Report for FAA Remote Communications Outlet/Ratio Transmit Receive. The FAA decommissioned the RCO/RTR site and removed all associated infrastructure in August 2010. As part of the decommissioning activities, formerly inaccessible petroleum contaminated soil associated with an underground storage tank removed in 1997 was excavated and sent to Columbia Ridge Landfill in Arlington, Oregon for disposal. Three on-site groundwater monitoring wells were sampled, then decommissioned. All soil confirmation sample results and groundwater sample results were below applicable cleanup levels. |
Melody Debenham |
| 4/1/2011 |
Conceptual Site Model Submitted |
A conceptual site model was submitted as part of the Final Site Remediation Report for FAA Remote Communications Outlet/Radio Transmit Receive Site. No complete pathways are identified in the CSM because all petroleum contaminated soils were removed. |
Melody Debenham |
| 1/6/2012 |
Document, Report, or Work plan Review - other |
Approved the technical memorandum describing the hydrologic study at the Juneau Sector Field Office from November 2010 to November 2011. |
Melody Debenham |
| 6/23/2015 |
Document, Report, or Work plan Review - other |
Received draft work plan describing petroleum contaminated soil removal and groundwater sampling at the Juneau Sector Field Office yard. |
Melody Debenham |
| 12/13/2016 |
Document, Report, or Work plan Review - other |
Received final Contaminated Soil Removal and Groundwater Sampling Report for the Juneau Sector Field Office Yard. |
Melody Debenham |
| 4/27/2018 |
Update or Other Action |
Sent an update on the site needs this date. |
Danielle Duncan |
| 1/23/2019 |
Update or Other Action |
Per the FAA, there are no funds available for a cleanup and the site is a low priority for them. |
Danielle Duncan |
| 1/5/2024 |
Document, Report, or Work plan Review - other |
Draft Remedial Action Work Plan - FAA Juneau Site Demolition, Remedial Action, Soil Sampling, and Long-Term Monitoring received 1/03/2024. |
Jenny Gates |
| 1/8/2024 |
Document, Report, or Work plan Review - other |
Contaminated Media Transport and Treatment or disposal Approval forms received. 01.05.2024. |
Jenny Gates |
| 3/28/2024 |
Document, Report, or Work plan Review - other |
Revised/Updated Draft Remedial Action Work Plan - FAA Juneau Site Demolition, Remedial Action, Soil Sampling, and Long-Term Monitoring received 03.15.2024. ADEC comments sent on 05.01.2024; FAA RTCs received on 05.07.2024; ADEC comments sent on 05.30.2024; FAA RTCs received 07.16.2024; ADEC RTCs sent on 07.29.2024; FAA RTCs received on 09.12.2024; ADEC RTCs sent on 10.02.2024. |
Jenny Gates |
