| Action Date |
Action |
Description |
DEC Staff |
| 9/9/1991 |
Underground Storage Tank Site Characterization or Assessment |
SA1; Preliminary assesment for 1 gasoline and waste oil tank indicates extensive contamination around waste oil tank. In addition to the TPH, chlorinated hydrocarbons are present. |
Former Staff |
| 7/9/1992 |
Leaking Underground Storage Tank Emergency Response |
IA; Contaminated soil excavated to 20ft. contaminated soil left beneath bldg. |
Former Staff |
| 7/9/1992 |
Release Investigation |
SA2; Basketfield - NC Machinery staff undertook UST removal and site sampling;installed three monitoring wells on OCT. 21 and Oct. 22, 1992. |
Former Staff |
| 7/28/1992 |
Release Investigation |
SA2; Contaminated soil exists at water table (approx.18 ft). chlorinated hydrocarbons were not addressed, next step is monitor well installation. |
Former Staff |
| 10/12/1992 |
Underground Storage Tank Site Characterization or Assessment |
SA1R; Gibler reviewed report 11/11/92. Extent of contamination not yet known. |
Former Staff |
| 10/15/1992 |
Release Investigation |
RELR; Gibler sent letter reviewing assessment and listing unanswered questions. |
Former Staff |
| 10/29/1992 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST Site created in CSP for source area ID 78441 ADD; |
Former Staff |
| 10/29/1992 |
Site Added to Database |
|
Former Staff |
| 11/16/1992 |
Release Investigation |
RELR; Basketfield/Gibler - elevated levels of tph >= 49,000 ppm (418.1) found in soil. TPH and clorinated hydrocarbons found in monitor well water samples. |
Former Staff |
| 11/17/1992 |
Update or Other Action |
MEET; Basketfield/Gibler - Met with Lynn Laszewski of NC Machinery to discuss further Phase II site assessment work. |
Former Staff |
| 12/3/1992 |
Update or Other Action |
CORR; Gibler: Letter from Lynn Laszewski requesting copy of non-NC Machine additions to 102.26.055 file and information on sites in vicinity that might have produced cross contamination. |
Former Staff |
| 12/16/1992 |
Update or Other Action |
CORR; Gibler: Letter with enclosures (non NC Mechanical additions to file and contaminated sites database reports on neaby sites) sent to Lynn Laszewski. |
Former Staff |
| 9/4/1993 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
LCAU; Kalu - Tanks have been closed and site is being bioremediated. |
Former Staff |
| 6/6/1994 |
Update or Other Action |
CORR; Wingerter sent letter informing RP of their financial liability under new ADEC cost recovery policy. State is authorized, under Section 9003(h) of the Resource Conservation and Recovery Act to take action on this LUST facility. |
Former Staff |
| 6/29/1994 |
Update or Other Action |
RPL2; Peterson sent PRP-CS Database Notification letter to RP requesting update and more environmental information concerning contaminated site. Letter rec'd, but as of this date "no response"! |
Former Staff |
| 8/1/1995 |
Site Visit |
LFI; Based on the information provided, no further action is required at the former tank areas 1,2,3, and 6. Additional soil sample should be collecteted from the former sump area, and former used oil area. DEC required Ground water monitoring. |
Former Staff |
| 11/20/1997 |
Potentially Responsible Party/State Interest Letter |
ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: N. C. MACHINERY CO. |
Former Staff |
| 1/28/2004 |
Update or Other Action |
Transferred DEC staff lead from John Carnahan |
Cynthia Pring-Ham |
| 3/24/2008 |
Exposure Tracking Model Ranking |
Initial ranking completed. |
Tamara Cardona-Marek |
| 4/4/2008 |
Update or Other Action |
Sent letter requesting update on the site. |
Tamara Cardona-Marek |
| 4/10/2008 |
Update or Other Action |
Spoke with new contact John Storm at Harnish Group Inc. Consultant (ENSR/ Former Re-Tec) will be submitting a workplan for additional sampling scheduled for May 2008. |
Tamara Cardona-Marek |
| 10/22/2008 |
Document, Report, or Work plan Review - other |
DEC received the 2008 groundwater monitoring report. Contamination with PCE was detected above cleanup in some of the monitoring wells. Additional information was requested by DEC regarding land use, conceptual site model, etc. |
Tamara Cardona-Marek |
| 10/30/2008 |
Update or Other Action |
DEC received a call from John Storm from Harnish Group. They will be submitting a reply to our letter and will set up a conference call to discuss the site. |
Tamara Cardona-Marek |
| 2/11/2009 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 78444 Tank 4-1000 gallon Heating. |
Tamara Cardona-Marek |
| 2/11/2009 |
Exposure Tracking Model Ranking |
A new updated ranking with ETM has been completed for source area 78445 Tank 5-1000 gallon Heating Fuel Oil. |
Tamara Cardona-Marek |
| 4/9/2009 |
Meeting or Teleconference Held |
Met with NC Machinery to discuss vapor intrusion building survey and monitoring event for 2009. Monitoring wells will be sampled and additional remediation in the injection well area will be explored. |
Tamara Cardona-Marek |
| 6/4/2009 |
Meeting or Teleconference Held |
DEC spoke with RP and consultant to discuss work plan that will be submitted for 2009 field season. A monitoring well will be installed downgradient of former Tank 5. A vapor intrusion evaluation will take place to determine the need for additional sampling. |
Tamara Cardona-Marek |
| 9/29/2010 |
Meeting or Teleconference Held |
2009 Groundwater & Preliminary VI assessment Report reviewed and discussed with RP and consultant(teleconf). The consultant will tabulate and summarize available petroluem and chlorinated solvent data for DEC review and aid for additional characterization (if necessary). A new MW, down-gradient Tank 5, will be installed during summer 2011. Soil data will be used with the J&E Model (instead of just Groundwater data) as a the next step to Vapor Intrusion assessment. The building survey conducted in 2009 will be sent to DEC. |
Jim Fish |
| 9/19/2013 |
Update or Other Action |
Letter sent to RP requesting for site status update and status of pending work discussed during 2010 teleconference. |
Jim Fish |
| 9/23/2013 |
Update or Other Action |
Received phone call from RP in response to inquiry letter - expecting update on pending project in two weeks. |
Jim Fish |
| 2/3/2014 |
Update or Other Action |
Site transferred from Fish to Dieffenbacher. |
Rebecca Bryan |
| 5/20/2014 |
Update or Other Action |
Telephone call from AECOM stating 2009 report is most recent data. No work has been conducted at the Old Steese NC Machinery property since 2009. Property is vacant as RP has moved operations to another location. RP is considering selling property and wants to conduct field work this summer. |
Amy Rodman |
| 6/19/2014 |
Meeting or Teleconference Held |
Met with Stephen Bell at Juneau NC Machinery store. Confirmed and discussed necessary fieldwork activities for 2014 and information gaps from previous DEC correspondence. |
Amy Rodman |
| 7/31/2014 |
Update or Other Action |
Staff changed from Amy Dieffenbacher to Melody Debenham. |
Kristin Thompson |
| 9/30/2014 |
Site Visit |
Site visit to 730 Old Steese. Discussed possible location for new monitoring well. |
Melody Debenham |
| 7/29/2015 |
Document, Report, or Work plan Review - other |
Approved groundwater monitoring work plan. |
Melody Debenham |
| 4/18/2016 |
Document, Report, or Work plan Review - other |
Approved final 2015 groundwater monitoring report documenting the installation of MW-11 and the decommissioning of MW-7. Groundwater samples were collected from 7 wells and analyzed for VOCs, GRO, DRO, RRO, and PAHs. Results show DRO, RRO, cis-dichloroethene, and tetrachloroethane were detected above the cleanup levels in groundwater. |
Melody Debenham |
| 9/14/2017 |
Update or Other Action |
Request for update letter sent. |
Gretchen Caudill |
| 5/17/2022 |
Document, Report, or Work plan Review - other |
Approved workplan for collection of VI samples from the track shop and main shop areas. |
Michael Hooper |
| 7/5/2022 |
Site Characterization Workplan Approved |
Approved workplan for groundwater monitoring, 5 wells and 4 temporary sampling points will be sampled for petroleum and solvents this summer. |
Michael Hooper |
| 4/4/2023 |
Site Characterization Report Approved |
Approved GWM Report: Groundwater contamination related to former underground storage tanks (USTS) #5, #7, and a former dry well was investigated by sampling monitoring wells MW-1R, MW-6, MW-10, MW-11R, and SI-1. To investigate the source of the observed cis-DCE contamination five temporary sampling points were installed at the up-gradient property boundary.
Results of this sampling event show that cis-DCE contamination detected in the monitoring wells MW-6, MW-10, and SI-1 does not appear to be migrating from off-site. Trend analysis including historical data shows that concentrations of petroleum and solvent contaminants of concern have not yet demonstrated a stable or decreasing trend in groundwater. ADEC agrees with the recommendation for continued annual monitoring at MW-01R, MW-06, MW-10, and MW-11R. |
Michael Hooper |
| 4/24/2024 |
Site Characterization Report Approved |
Vapor intrusion was investigated by collecting samples from indoor air, outdoor air, and soil gas at the main shop and liner shops at the Airframes Alaska facility. Analytical results were compared to the commercial target levels in DEC’s Vapor Intrusion Guidance.
Naphthalene exceeded the soil gas target level in the main shop but was not detected in indoor air. Tetrachloroethylene (PCE) exceeded the indoor air target level in the main shop in March 2023 but this is thought to be the result products containing chlorinated solvents being using in the shop at the time. The indoor air was resampled at this location two more times and PCE concentrations were well below the target levels. DEC agrees with the recommendation that additional vapor intrusion investigation is not necessary at this time. |
Michael Hooper |
