| Action Date |
Action |
Description |
DEC Staff |
| 10/4/1989 |
Update or Other Action |
REM; Funded by USFS. Aoki Construction removed (3) USTs on 10/4/89. During removal of diesel UST tainted soils were discovered at the edge of the loading dock. Possible materials spilled include fuel, paint, and wood preservative. Approx. 10 cubic yards of this material was stockpiled separately. Tainted soils extended to foundation of oil/gas bldg. Removal of (2) gasoline USTs revealed extensive contamination. Approx. 200 cubic yards of heavily contaminated soils removed. Estimated 15,000 square feet of gasoline contamination remains in place. Hardpan or bedrock was encountered at 20 feet. Groundwater seepage was encountered 10 to 14 feet below the surface. The excavations were filled and compacted with clean gravels and paved. ADEC responded in a letter dated 11/3/89 to clarify proper stockpiling of excavated soils and sampling analyses of drinking water wells. ADEc requested a water well survey within 1,500 feet of the site. |
Former Staff |
| 10/5/1989 |
Leaking Underground Storage Tank Release Confirmed - Petroleum |
LUST Site created in CSP for source area ID 76484 ADD; |
Former Staff |
| 10/5/1989 |
Site Added to Database |
|
Former Staff |
| 10/6/1989 |
Leaking Underground Storage Tank Cleanup Initiated - Petroleum |
LCAU; :LCAU Date changed DB conversion |
Former Staff |
| 10/6/1989 |
Release Investigation |
RELR; :Action Date changed DB conversion 1/11/11 |
Former Staff |
| 10/6/1989 |
Update or Other Action |
CAPR; :Action Date changed DB conversion 1/11/11 |
Former Staff |
| 11/5/1989 |
Site Visit |
FI; USGS funded. Drinking well at work center contained non-detectable phenols. Lab report received. EPA Method 8040. |
Former Staff |
| 11/13/1989 |
Release Investigation |
SI; Funded by USFS. The primary contaminants identified are gasoline (BTEX and TPH) and pentachlorophenol, a wood preservative. The diesel UST was installed in 1963 and the gasoline USTs in 1977. On-site drinking well, 220 feet from the USTs,to be tested. Sieve analysis of soils from test pit indicate clean, sandy gravels with cobbles, a lense of silt. Kenai Lake is 620 feet from the site. Analytical results from former UST excavations: 145.53 ppm BTEX, 57.6 ppm TPH, 78.2 ppm pentachlorophenol, 0.0914 ppm dibromochloromethane, 0.0531 ppm 1,2, dichloroethane |
Former Staff |
| 1/16/1990 |
Release Investigation |
SI; USFS funded. E&E did a USEPA Hazard Ranking for this site. They came up with a score of 27.9. |
Former Staff |
| 1/19/1990 |
Update or Other Action |
John Halverson sent a Notice of Violation letter after reviewing the November 6, 1989 report. |
Alyce Hughey |
| 2/21/1990 |
Update or Other Action |
John Halverson sent a letter to Chugach National Forest requesting a site assessment, cleanup plans, location of all drinking water wells within 1500 feet and the results of all water analyses. |
Alyce Hughey |
| 5/11/1990 |
Release Investigation |
SI; USFS funded. E&E conducted a Phase I site assessment dated 7/2/90. During the field inspection, the oil/gas storage shed, stockpiled soils and the areas surrounding the storage bldg., warehouse, office and carpenter shop were investigated. A PID was used to measure volatile organic vapors in the surface soils. No runoff or overland flow pathways from the site area to adjacent water bodies were observed. |
Former Staff |
| 5/18/1990 |
Update or Other Action |
Paul Horwath sent a letter with review comments after reviewing the February 27, 1990 letter from U.S. Forest Service. |
Alyce Hughey |
| 5/18/1990 |
Update or Other Action |
Monica English sent a letter requesting timetables for phase one, detailed scope of work, and anticipated startup date for phase one. |
Alyce Hughey |
| 7/3/1990 |
Leaking Underground Storage Tank Corrective Action Underway |
RAPR; USFS funded. The Phase II site investigation plan is approved with the inclusion of ADEC comments. |
Former Staff |
| 7/12/1990 |
Site Visit |
Monica English sent an approval letter with the condition that TPH, BTXE and pentachlorophenol analyses would be conducted on all samples collected from the Boneyard Warehouse area, after reviewing the Sampling & Quality Assurance Plan Phase II-Site Investigation. |
Alyce Hughey |
| 9/24/1990 |
Release Investigation |
SI; USFS funding. E&E monitored the sampling and installation of (11) soil borings in the areas potentially affected by the gasoline UST. With the exception of (3) borings, all borings were completed to 40 feet. Refusal at 20 feet in (3) borings attributed to boulders. Three soil borings were drilled at the Boneyard Warehouse, an area separate from the former UST sites. Three monitoring wells were installed based on soil boring results, in the former UST area. Groundwater was encountered 20 to 24 feet below the surface and moves towards the south to southwest. Three offsite wells were sampled for VOC and phenols. BTEX and pentachlorophenol were not detected. A total of 32 of the 45 subsurface soils from the UST area had detected BTEX and TPH. Pentachlorophenol was not detected. Borings indicate subsurface contamination migrating to the south. Pentachlorophenol was not detected in any groundwater sample. Samples from MW-3 had 5 ppb and 7.2 ppb benzene during two separate sa |
Former Staff |
| 3/13/1991 |
Leaking Underground Storage Tank Corrective Action Underway |
RAPR; USFS funded. The plan addressed gasoline contaminated subsurface and stockpiled soils, surface soils around carpenters shop and subsurface soils at the Boneyard Warehouse. Estimated surface area for subsurface vapor extraction 6,500 square feet. ADEC responds in letter dated 5/9/91 that vapor extraction as a means of soil remediation and long term GW monitoring are acceptable approaches. Remediation plan for the pentachlorophenol detected at the Boneyard Warehouse is requested. ADEC cleanup levels for OCDD (Dioxin) is 13 ppb and 5,000 ppb for pentachlorophenol per project file notes. |
Former Staff |
| 5/9/1991 |
Update or Other Action |
Monica English sent a letter with question/comments after reviewing the Field Investigation Report and Remedial Alternatives Report from Ecology & Environment Inc., dated March 1991. |
Alyce Hughey |
| 11/25/1991 |
Update or Other Action |
F; Amerca North sent in "final" plan for vapor extraction system for DEC approval. |
Former Staff |
| 3/31/1992 |
Update or Other Action |
Monica English sent a follow-up letter after a phone conversation with Vanessa McCloud, National Forest Service, requesting a public notice, possible meeting, and the submittal of a proposed remediation plan of utilizing a vapor extraction system. |
Alyce Hughey |
| 5/19/1992 |
Update or Other Action |
Monica English sent an approval letter of the proposed workplan for installation of a vapor extraction system. |
Alyce Hughey |
| 9/17/1993 |
Update or Other Action |
Monica English sent a no further action letter regarding the landspreading after receiving laboratory data showing that the soils now meet the departments most stringent cleanup levels. |
Alyce Hughey |
| 9/17/1993 |
Leaking Underground Storage Tank Corrective Action Underway |
LCAR; A corrective action report was submitted by the Chugach Forest Service for the landspreading operation. The soils being landspread resulted from the removal of a regulates underground storage tank system at the work camp. |
Former Staff |
| 4/14/1994 |
Leaking Underground Storage Tank Corrective Action Underway |
LCAR; Monica English sent a letter with review comments that concured the reactivation of the vapor extraction system for another season, and requested the May and August 1993 sampling events, after reviewing the Groundwater Monitoring and Remediation system Progress Report Kenai Lake Work Camp from EMCON Alaska Inc., dated December 21, 1993. |
Former Staff |
| 5/31/1994 |
Leaking Underground Storage Tank Corrective Action Underway |
LCAR; A VES system evaluation report and confirmation sampling plan was submitted for the corrective actions being conducted at this facility. |
Former Staff |
| 1/21/1995 |
Leaking Underground Storage Tank Corrective Action Underway |
LCAR; A Corrective Action Report for the operation of a soil vapor extraction system and confirmation testing was reviewed by departmental staff. The report requested final shutdown of the system. |
Former Staff |
| 1/23/1995 |
Site Closure Approved |
CLOS; A No Further Action letter was issued to the RP of this site. Site cleanup levels were achieved utilizing a vapor extraction system over the course of 3 work sessions. |
Former Staff |
| 9/8/2004 |
Update or Other Action |
File number assigned and entered into the Fileroom DB and LUST DB. |
Alyce Hughey |
| 3/1/2006 |
Update or Other Action |
Using Figures 1 and 2 from a Remedial Alternatives Report, Kenai Lake Work Center, from Ecology and Environment, Inc., dated March 1991, in conjunction with TopoZone Pro and the KPB Parcel Lookup, entered the coordinates for this site. Metadata includes No Topo Basemap, TopoZone Pro Street Maps, Black and White Aerial Photo, on a Medium Size Map, View Scale 1:10,000, Coordinate Datum NAD83. High degree of confidence in accuracy of location. |
Alyce Hughey |
