Site Report: Rockford Corporation
| Site Name: | Rockford Corporation |
|---|---|
| Address: | 101 E. 92nd Avenue, Anchorage, AK 99517 |
| File Number: | 2100.26.211 |
| Hazard ID: | 24604 |
| Status: | Cleanup Complete |
| Staff: | No Longer Assigned, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 61.138160 |
| Longitude: | -149.879718 |
| Horizontal Datum: |
|  |
 |  |
We make every effort to ensure the data presented here is accurate based on the best available information currently on file with DEC. It is therefore subject to change as new information becomes available. We recommend contacting the assigned project staff prior to making decisions based on this information.
Problems/Comments
F.K.A. L55.38
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 5/21/1993 | Leaking Underground Storage Tank Release Confirmed - Petroleum | LUST Site created in CSP for source area ID 77830 On 5/21/93, DEC received Quest's report "Toklat UST Closures April 20, 1993." The report showed that during removal of 2 5,000 gal. UST (one had contained diesel and the other unleaded gasoline) soil contamination was encountered. The tank closure and assessment activities occurred on 8/6/92. Groundwater was at about 7 ft BGS. Max. level of DRO remaining was 337 ppm below one of the USTs. 11 cy of lightly contaminated soil was disposed of at the MOA landfill and 10 gal. Of heavy contaminated soil was stockpiled for later disposal. A collection gallery was installed to treat contaminated groundwater. | Former Staff |
| 5/21/1993 | Leaking Underground Storage Tank Cleanup Initiated - Petroleum | Note comments under "confirmed release." | Former Staff |
| 5/21/1993 | Site Added to Database | Former Staff | |
| 3/1/1994 | Release Investigation | On 3/1/94, DEC received "Report of Continuing Site Assessment at 101 E. 92nd Ave. Anchorage" from Quest. The report noted that in 11/93 4 borings were performed and 3 were completed as monitoring wells. Low levels of DRO and BTEX were detected in the groundwater samples. | Former Staff |
| 5/28/2002 | Update or Other Action | Project transferred to new staff, Amanda Dreyer | Former Staff |
| 6/13/2002 | Update or Other Action | Contacted Clifford Elsman 243-4431(contractor) inquiring about any reports, he visited the office on 6/17/02 and made a copy of the site assessment | Amanda Dreyer |
| 12/17/2003 | Update or Other Action | CSP issued a letter on 12/17/03 in response to Montauk Environmental submital dated 11/12/03 in which they provided a summary of sampling effort, and requested a no further remedial action planned letter from DEC. DEC noted in its response that it required further information on groundwater (another groundwater sampling event) before it could consider a NFRAP determination at this time. DEC also noted that it disagreed with seveal conclusions in the report including that road oil contributed to groundwater contamination in one of the wells based upon the information provided. | Rich Sundet |
| 3/5/2004 | Update or Other Action | CSP approved of Montauk Environmental's 1/20/04 workplan that requested the installation of MW-1 and possibly MW-3 as replacement wells because their integrity has or possibly has been compromised, respectively. DEC also requested that an inspection be performed this spring of the wetland area adjacent to the site to determine whether it has been impacted by the petrolem release at the site. | Rich Sundet |
| 1/7/2005 | Update or Other Action | On 1/7/05, DOL issued a bill for $128.23 to Toklat Co. for time between 5/1 and 5/31/04. On 1/19/05, DOL informed DEC that it received full payment for the bill. | Rich Sundet |
| 4/20/2006 | Update or Other Action | On 4/20/06, CSP responded to Montauk's report "MW Chemical and Physical Data" dated 6/28/05 which reported that they installed 2 replacement monitor wells for MW1 and MW3, and sampled those and one other existing well in Sept/Oct 04. Maximum contamination was detected at MW3 but DRO and BTEX were all below Table C cleanup levels (e.g. 0.699 mg/L DRO and 1.3 ug/L benzene). DEC requested one more sampling event in May/June 06 to confirm the findings. If findings are consistent and no petroleum is observed in the adjacent wetland, DEC can consider a closure (once the monitor wells are decommissioned) or conditional closure for the site. | Rich Sundet |
| 4/23/2007 | Exposure Tracking Model Ranking | Ranked site with ETM. | Rich Sundet |
| 12/17/2007 | Document, Report, or Work plan Review - other | On 12/17/07, DEC reviewed Montauk's 12/12/07 report in response to DEC's 4/20/07 letter that requested one more confirmation groundwater sampling event of the three monitor wells and a conceptual site model, and inspection to ensure that no contamination was visible in the nearby wetland. The report noted that BTEX was below reporting evels, and that DRO was comparable to the last sampling event in 2004 (with 0.535 mg/L and 0.532 mg/L in MWs 2 and 3 respectively). The report also provided a CSM and noted that no visible contamination was observed in the nearby wetland. In follow-up, DEC emailed Montauk that it required a completed laboratory assurance checklist which Montauk later provided on 12/17. Dec then notified Montauk via email that upon review of the completed checklist, the report meets DEC's satisfaction and upon notification that the monitoring wells are properly abandoned DEC can issue a closure letter for the site. | Rich Sundet |
| 2/22/2008 | Site Closure Approved | On 2/22/08, DEC responded to Montauk's letter report "Monitor Well Decommissioning Rockford Corporation LUST at 101 E. 92nd Ave. Anchorage AK" dated 1/3/2008. The report was submitted to DEC via email on 1/3/08. DEC's 2/22/08 letter noted that the letter report satisfied DEC's request in its 12/17/07 email to Montauk regarding outstanding issues at the site. The letter report documents the proper decommissioning of the three monitor wells on site. Based on the letter report and past information in the file, DEC notified Rockford Corp. on 2/22 that it was closing the site and no further action is necessary unless information is discovered that contamination at the site poses a risk to human health or the environment. | Rich Sundet |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| For more information about this site, contact DEC at (907) 465-5390. |
Control Type
| Type | Details |
|---|---|
| No ICs Required |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. |
No associated sites were found.