| Action Date |
Action |
Description |
DEC Staff |
| 8/5/2003 |
Site Added to Database |
|
Former Staff |
| 8/5/2003 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
Complete excavation of the contaminated soil adjacent and under UST #2 was not possible due to the close proximity of the older UST to the building foundation. Some contaminated soil left in place. |
David Allen |
| 8/5/2003 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST Site created in CSP for source area ID 77829 (Added by System). During removal of a 500-gallon emergency generator diesel UST and replacement with a new AST, a second, older, and previously unknown, diesel fuel tank (UST #2) was discovered. There was no contamination discovered attributable to the newer UST (UST #1). However, the older UST had petroleum hydrocarbon contamination exceeding ADEC cleanup levels. Contamination has been attributed to tank overfills, indicated by observable staining around the fill pipe. Field screening indicated the presence of petroleum contamination beneath the point where the supply line intersected the building. Four soil borings taken indicated contamination up to 2,450 mg/kg GRO, 12,100 mg/kg DRO, 27.6 mg/kg toulene, 24.2 mg/kg ethylbenzene, and 131 mg/kg total xylenes. One GW sample indicated precence of petrolem constituent below ADEC cleanup levels. There is no DW well on site. Complete excavation of the contaminated soil was not possible due to the close proximity of the older UST to the building foundation. Contamination was found to attenuate below cleanup levels at the 15' depth. The remaining volume of contaminated soil is estimated to be located down to 15 feet bgs at 75 cubic yards. |
David Allen |
| 9/9/2003 |
Release Investigation |
"Release Investigation Work Plan, GCI Eagle River Network Facility" submitted to ADEC 9/8/03 and approved 9/9/03 by Amanda Dreyer. The release investigation consisted of soil borings, monitoring well installation, and collection of soil and GW samples. |
Eric Henry |
| 12/19/2003 |
Update or Other Action |
ADEC staff Nuechterlein received Oasis "Site Characterization Report, GCI Network Facility, 23554 The Clearing Drive, Eagle River, AK, ADEC UST ID #3461" dated 12/16/03. |
Bill Petrik |
| 12/31/2003 |
Update or Other Action |
RECKEY has automatically been generated. |
|
| 4/12/2004 |
Update or Other Action |
File number assigned 2107.26.002. |
Sarah Cunningham |
| 4/28/2004 |
Underground Storage Tank Site Characterization or Assessment |
After review of ADEC the Oasis "Site Characterization Report, GCI Network Facility, 23554 The Clearing Drive, Eagle River, AK, ADEC UST ID #3461" dated 12/16/03, the following site information has been determined. Contamination has been attributed to tank overfills. Field screening indicated the presence of petroleum contamination beneath the point where the supply line intersected the building. Contamination was found to attenuate below cleanup levels at the 15' depth. The remaining volume of contaminated soil is estimated at 75 cubic yards. During Release Investigation, sample SB01 8-9', SB02 8', and SB012 13', all detected GRO, DRO, toluene, ethylbenzene, and xylene contamination but below ADEC cleanup levels except SB01 8-9' had GRO and DRO above at 515 and 2,400 mg/Kg, respectively. Tank removal site assessment soil sample results indicated DRO and RRO contamination below cleanup levels. Sample S1 had xylenes present but below cleanup levels. Sample S5 had DRO and RRO contamination below cleanup levels. Sample S7 had detected RRO contamination below cleanup levels but GRO (2,450 mg/Kg), DRO (12,100 mg/Kg), toluene (27.6 mg/Kg), ethylbenzene (24.2 mg/Kg), and xylene (131 mg/Kg) contamination above ADEC cleanup levels. GW samples collected from MW1 and its duplicate indicated the presence of GRO, toluene, ethylbenzene, and xylenes but below cleanup levels. |
Eric Henry |
| 5/6/2004 |
Long Term Monitoring Established |
Staff Henry reviewed the Oasis "Site Characterization Report, GCI Network Facility, 23554 The Clearing Drive, Eagle River, AK, ADEC UST ID #3461" dated 12/16/03. In a letter this date, staff Henry reiterated the report recommendations of semi-annual GW monitoring and development of a workplan to address the remaining soil contamination. Staff Henry approved semi-annual GW monitoring and indicated that he looks forward to receiving a workplan that details remedial action for contaminated soil at the site. Additional information requested was how far is the site from Eagle River and what is the proximity of the site to the nearest drinking water well and in what direction is the well(s) from the plume, e.g. down gradient. |
Bill Petrik |
| 10/4/2005 |
Update or Other Action |
Project manager changed from Eric Henry to Bill Petrik. |
Sarah Cunningham |
| 12/5/2005 |
Update or Other Action |
Used TopoZone Pro in conjunction with the Eagle River Area Atlas, MOA GIS, and site map to add the latitude and longitudes coordinates and legal description information. Used a Large Size Map at 1:3,333 Scale High-Res Urban Aerial Photo, NAD83. Very high degree of confidence in lat/long values. |
Bill Petrik |
| 12/7/2005 |
Update or Other Action |
Performed well search using WELTS. One nearby well is 20' deep. Another is 60'. Reranked the site using the AHRM. Residences located within 500' of the site. Changed Population Proximity Response from 2 to 1 resulting in its value changing from 0.5 to 1. Drinking water wells within 500'. Changed Population Proximity Response from 3 to 2 resulting in its value changing from 0.4 to 0.8. Previous score was 11.2, new score is 18. Priority changed from Low to Medium. |
Bill Petrik |
| 12/12/2005 |
Update or Other Action |
Received a phone call from Darci Bowers of Oasis in response to a voice mail I left with her on 12/7/05. Darci said that she has not received any response from GCI in regards to the 5/6/04 letter that Eric Henry sent to GCI with a cc to her. She does not wish to receive any ccs from ADEC of correspondence sent to GCI in the future. |
Bill Petrik |
| 6/5/2006 |
Update or Other Action |
Talked to Troy Crow and Clyde Raymer of GCI Maintenance. Asked if they received the department's letter dated 1/12/06 and they said they had and mailed a response. The program has no record of the letter or receiving the letter in the file. Mr. Raymer said that he would call and fax a copy of their response to the office. |
Bill Petrik |
| 4/19/2007 |
Document, Report, or Work plan Review - other |
The Contaminated Sites Program (CSP) sent a letter in response to a review of the "Supplemental Remedial Investigation Work Plan" dated and received via email on April 6, 2007, for the GCI Network Facility located in Eagle River. The work plan was approved and calls for installing an additional two monitoring wells, sampling soils during drilling and sampling ground water upon completion. Boring locations depicted in the work plan may change based on access for a drilling rig to the property. The soils and ground water will be sampled for gasoline range organics, diesel range organics, benzene, toluene, ethylbenzene, and total xylenes. Also requested were a Conceptual Site Model, a Laboratory Data Review Checklist, and a reminder of Cost Recovery. |
Bill Petrik |
| 7/13/2007 |
Underground Storage Tank Site Characterization or Assessment |
Reviewed select data from the Oasis report "GCI Network Facility 2007 Supplemental Release Investigation" supplied by Cody Black in an email in order to base a decision on the disposal of investigative derived wastes (IDW) on. The analytical results for soil and GW samples was all ND for DRO and BTEX. The lab did not run GRO for the soil. Nonetheless, based on the ND results for DRO in soil, verbal permission was granted to dispose of IDW soil and water wastes on site. |
Bill Petrik |
| 12/7/2007 |
Update or Other Action |
Received a copy of the Oasis Environmental "Final 2007 Supplemental Remedial Investigation Report" dated December 5, 2007. Two GW wells were installed, collection of subsurface soil samples, and two quarterly GW monitoring events of the three on-site groundwater MWs were performed, in efforts to determine contaminate concentration trends, flow direction, and gradient in site groundwater. GW was found to flow S to SW. Contamination above ADEC cleanup levels was not detected in the soil or GW. |
Bill Petrik |
| 1/25/2008 |
Update or Other Action |
A letter report with this date was submitted by Oasis and received by ADEC on this date. The purpose of the letter is to describe the site conditions as they pertain to indoor air quality |
Grant Lidren |
| 4/23/2009 |
Update or Other Action |
ADEC telephone communication with GCI on this date. GCI intends on having the MWs decomissioned during the Summer of 2009 |
Grant Lidren |
| 9/22/2009 |
Update or Other Action |
Monitoring wells MW-1, MW-2, and MW-3 were removed on July 30, 2009 and properly decommissioned as stated in a Well Decommissioning Report submitted by Oasis. |
Grant Lidren |
| 10/1/2009 |
Institutional Control Record Established |
Institutional Controls established and entered into the database. |
Grant Lidren |
| 10/1/2009 |
Cleanup Complete Determination Issued |
The Alaska Department of Environmental Conservation (ADEC), Contaminated Sites Program, has completed a review of the environmental records associated with the GCI Network Facility. Based on the information provided to date, the ADEC has 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 as long as the site is in compliance with established institutional controls. This decision is based on the administrative record for GCI Network Facility, which is located in the offices of the ADEC in Anchorage, Alaska. |
Grant Lidren |
| 10/6/2009 |
Update or Other Action |
ADEC received signed CC-IC agreement on this date. |
Grant Lidren |
| 6/13/2012 |
Update or Other Action |
Staff changed from Grant Lidren to IC Unit. |
Kristin Thompson |
| 7/10/2012 |
Institutional Control Compliance Review |
IC review conducted. |
Evonne Reese |
| 5/16/2013 |
Long Term Monitoring Complete |
Administrative action added during a quality control check. |
Kristin Thompson |
| 10/7/2014 |
Institutional Control Update |
IC reminder letter issued to the responsible party on this date. |
Kristin Thompson |
| 10/16/2014 |
Institutional Control Periodic Reporting |
I received a phone call from a respresentative of the responsible party and she verified that there have been no changes in land use or property ownership. |
Evonne Reese |
| 6/15/2018 |
Institutional Control Compliance Review |
IC compliance review conducted. Closure/IC Details updated. |
Kristin Thompson |
| 11/19/2019 |
Institutional Control Compliance Review |
An Institutional Controls reminder letter mailed to the responsible party/landowner on this date. |
Mossy Mead |
| 2/1/2024 |
Institutional Control Compliance Review |
IC compliance review completed on 2/1/24 and an IC reminder letter was issued to the landowner. |
Livia Bracker |
