Action Date |
Action |
Description |
DEC Staff |
7/1/1997 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST Site created in CSP for source area ID 77630 |
Former Staff |
7/1/1997 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
|
Former Staff |
7/1/1997 |
Site Added to Database |
|
Former Staff |
4/8/1998 |
Document, Report, or Work plan Review - other |
Colin Basye sent a review with comments letter after reviewing the Final Field Report Girdwood Facility, from DOWL Engineers, dated February 1998. |
Alyce Hughey |
4/13/1998 |
Update or Other Action |
Colin Basye sent a second letter with additional comments and concerns to the Final Field Report. |
Alyce Hughey |
4/24/1998 |
Update or Other Action |
Colin Basye sent a letter asking if groundwater was encountered during the removal of the tanks. |
Alyce Hughey |
12/1/2003 |
Release Investigation |
Four Groundwater monitoring wells were installed , developed and sampled December 2003. Quarterly GW montioring events scheduled. Excavation scheduled for May 04. |
David Allen |
12/2/2003 |
Release Investigation |
Conditional approval of Release Investigation Plan 12/2/03. |
Alyce Hughey |
6/9/2004 |
Update or Other Action |
File number assigned and entered into the Fileroom DB and LUST DB. |
Alyce Hughey |
2/14/2005 |
Document, Report, or Work plan Review - other |
December 28, 2004 Groundwater Monitoring Report prepared by Shannon & Wilson was reviewed. Two wells (B2MW and B4MW) exceeded Table C levels. B4MW was considered upgradient and report indicates other sources may have contributed to impacts. Recommendation is to install 2 new wells to fill data gaps. |
Jim Frechione |
7/22/2005 |
Document, Report, or Work plan Review - other |
Reviewed file and reports. Sent an e-mail to DOT and S&W requesting copies of missing reports/data as well as project status update. From the information provided, there is soil and GW remaining with contamination above ADEC cleanup levels. |
Donald Seagren |
7/28/2005 |
Document, Report, or Work plan Review - other |
Reviewed release Investigation and GW monitoring report. After comparing with the project file and approved work plan, sent e-mail for clarification on work not in report. Response was work not completed due to inability to coordinate empty tankage. |
Donald Seagren |
7/29/2005 |
Update or Other Action |
Sent letter outlining assessment and monitoring requirements needed prior to development of CAP for implementation during 2006. |
Donald Seagren |
2/27/2006 |
Underground Storage Tank Site Characterization or Assessment |
Review and approve site assessment/remediation work plan. |
Donald Seagren |
10/9/2006 |
Update or Other Action |
RFP for groundwater monitoring in spring 2007 issued to Term Contractor Shannon & Wilson. |
Donald Seagren |
10/12/2006 |
Conditional Closure Approved |
Residual soil and GW contamination remain on site. Remaining contamination not a risk to human heath or the environment. Soil contamination around AST will be addressed when the tank is moved and the soil becomes accessible. |
Donald Seagren |
10/12/2006 |
Long Term Monitoring Established |
LTM established for on-site drinking water well and monitor wells until two consecutive annual monitoring events demonstrate that all contaminant levels in all MWs are below applicable groundwater cleanup levels. GW sampling will be performed in the spring of 2007. |
Donald Seagren |
10/12/2006 |
Institutional Control Record Established |
|
Former Staff |
11/15/2006 |
Update or Other Action |
Using the Facility Map in the file, in conjunction with TopoZone Pro and the DNR Recorders Office, entered the coordinates for this site. Metadata includes No Topo Basemap, Aerial Photos, TopoZone Pro Street Maps, on a Medium Size Map, View Scale 1:9,840, Coordinate Datum NAD83. High degree of confidence in accuracy of location. |
Alyce Hughey |
2/14/2007 |
Exposure Tracking Model Ranking |
Initial ETM ranking completed by Don Seagren. |
Former Staff |
7/5/2007 |
Document, Report, or Work plan Review - other |
Reviewed a groundwater monitoring report; 3 of 6 MWs contained at least 1 target analyte concentration. Only B2MW (and the duplicate) had DRO levels exceeding cleanup levels. B4MW could not be sampled due to ice in well. Monitoring to continue subject to available funding. |
Donald Seagren |
8/16/2007 |
Update or Other Action |
Approved a contaminated soil segregation plan to be used during reconstruction of the maintenance station which burned to the ground in early 07. |
Donald Seagren |
6/13/2008 |
Update or Other Action |
Site transferred from Don Seagren to Paul Horwath per Linda Nuechterlein. |
Alyce Hughey |
8/18/2008 |
Update or Other Action |
A groundwater sampling event to include the facility water supply well and the monitoring wells is tentatively scheduled to occur in late summer or fall of 2009. |
Paul Horwath |
12/28/2010 |
Site Characterization Report Approved |
Reviewed Term Contractor SLR's 2010 Ground Water Monitoring Report, for groundwater samples collected in June and July, 2010. Report is dated November 2010. GW samples from the 4 MWs samples met ADEC GW cleanup levels. |
Paul Horwath |
12/29/2010 |
Exposure Tracking Model Ranking |
Initial ranking with ETM completed for source area id: 77630 name: ust |
Paul Horwath |
12/29/2010 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 77630 ust. |
Paul Horwath |
4/3/2012 |
Update or Other Action |
The monitoring wells can be decommissioned and long-term groundwater monitoring discontinuted. |
Paul Horwath |
4/3/2012 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 77630 ust. |
Paul Horwath |
6/18/2013 |
Long Term Monitoring Complete |
Long-term groundwater monitoring discontinuted based on the groundwater samples collected in June and July of 2010. The groundwater samples from the 4 monitoring wells met ADEC groundwater clenaup levels. The monitoring wells can be decommissioned. |
Alyce Hughey |
6/25/2014 |
Document, Report, or Work plan Review - other |
Paul Horwath approved the Shannon & Wilson's June 18, 2014 Work Plan for Groundwater Monitoring Well Decommissioning for the ADOT&PF Girdwood Maintenance Station site. |
Alyce Hughey |
11/6/2014 |
Institutional Control Update |
Current project manager chooses to retain management of the site at this time. |
Kristin Thompson |
12/10/2014 |
Update or Other Action |
All groundwater monitoring wells that could be located were decommissioned under the oversight of ADEC term contractor Shannon & Wilson in July, 2014. |
Paul Horwath |
9/15/2016 |
Institutional Control Compliance Review |
IC compliance review conducted. Staff changed from Paul Horwath to IC Unit. Closure/IC Details added, contaminants of concern in groundwater changed from above to below Table C levels to reflect monitoring results, and groundwater monitoring requirement removed from ICs. All other ICs remain in effect. IC reminder letter issued to ADOT&PF on this date. Reminder system set to follow-up every five years. |
Kristin Thompson |
7/12/2024 |
Institutional Control Compliance Review |
IC compliance review completed on this date. An IC reminder letter was e-mailed to the landowner. The next review will be in five years’ time. |
Gaige Robinson |