Site Report: Development Managers Inc. HOT
| Site Name: | Development Managers Inc. HOT |
|---|---|
| Address: | 1301 East Whitney Road, P.O. Box 210967, near North Post Road, Anchorage, AK 99521 |
| File Number: | 2100.38.023 |
| Hazard ID: | 1188 |
| Status: | Cleanup Complete - Institutional Controls |
| Staff: | IC Unit, 9074655229 dec.icunit@alaska.gov |
| Latitude: | 61.225700 |
| Longitude: | -149.858000 |
| Horizontal Datum: | WGS84 |
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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
A2,000 gallon heating oil tank was removed in June 1991. Tank had leaked, evident by rust holes, and contamination was found in the soil underneath. During the removal of the UST in June 1991, it was observed that the tank had been leaking. Approximately 8 cubic yards of contaminated soil was removed and stockpiled. Soil samples collected beneath the tank had total petroleum hydrocarbons (TPH) up to 10,200 mg/kg. Three groundwater monitoring wells were installed to evaluate potential groundwater contamination. In 1992 two more monitoring wells, a product recovery well, and four test pits were installed. No free product was found at the location of the recovery well. Soil samples indicated TPH levels below ADEC cleanup levels. Contaminates found in groundwater were above ADEC cleanup levels. Additional groundwater samples collected from 1993 to 2000 contained varying concentrations of contaminates, with DRO detected above the ADEC Table C cleanup level on several occasions. No further action granted January 8, 2008 subject to intitutional controls. In 2001 three soil borings were advanced to approximately 10 feet below ground surface with samples collected at 2.5 foot intervals. Groundwater was encountered from 6 to 10 feet below ground surface. Contamination in the soil samples was found to be below ADEC Method Two migration to groundwater cleanup levels. Stockpiled soil was no longer on site, and was believed to have been spread over the parking lot accidently during snow removal activities. Two groundwater samples were also analyzed for DRO during the 2001 event. Well B2MW, located near the former UST, had contamination above ADEC cleanup levels with DRO detected at 8.63 mg/l.; however a more recent groundwater sample collected from a monitoring well in the vicinity of B2MW as part of a Remedial Investigation conducted by the Alaska Rail Road Corporation in 2005 did not detect contaminants of concern in groundwater.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 9/1/1991 | Update or Other Action | Phase 1 Soil & Groundwater Assessment submitted by Shannon & Wilson | Grant Lidren |
| 7/1/1992 | Update or Other Action | Phase 2 Petroleum Hydrocarbon and Groundwater Assesssment submitted by Shannon & Wilson | Grant Lidren |
| 5/14/1993 | Update or Other Action | 1993 April & May GW monitoring report with this date, recieved by DEC 12/30/1993, submitted by Shannon & Wilson | Grant Lidren |
| 6/6/1996 | Update or Other Action | 1996 May GW and soil sampling report with this date, recieved by DEC 8/12/1996, submitted by Shannon & Wilson. | Grant Lidren |
| 3/31/1998 | Update or Other Action | 1998 March GW monitoring report with this date submitted by Shannon & Wilson | Grant Lidren |
| 9/13/2000 | Update or Other Action | 2001 May GW and soil sampling report with this date, recieved by DEC 9/12/2001, submitted by Shannon & Wilson. | Grant Lidren |
| 8/25/2004 | Site Added to Database | DRO. | Sarah Cunningham |
| 8/31/2004 | Site Ranked Using the AHRM | Initial ranking. | Sarah Cunningham |
| 8/31/2004 | GIS Position Updated | Using Topozone, site maps, and Anchorage Area Atlas in NAD27, acheived a moderately accurate set of coordinates. | Bill Petrik |
| 11/1/2007 | Exposure Tracking Model Ranking | Intial ranking completed | Grant Lidren |
| 12/3/2007 | Conditional Closure Approved | The Department of Environmental Conservation, Contaminated Sites Program (ADEC) has completed review of the Soil and Groundwater Sampling Report submitted by Shannon & Wilson Inc. This site had been contaminated by the release of a hazardous substance; however, based on the information provided to date, ADEC has determined that no further remedial action is required, and that Development Managers Inc. at 1301 Whitney Road can be closed subject to Instutional Controls. The hazardous substance contamination has been adequately addressed and does not pose an unacceptable risk to human health or the environment. | Grant Lidren |
| 12/3/2007 | Institutional Control Record Established | There is contamination remaining above established cleanup levels but ADEC determined there is no unacceptable risk to human health or the environment, and this site will be conditionally closed subject to the followiing conditions: First, A Notice of Environmental Contamination will be recorded on the ADEC database to document that there is residual contamination remaining on site above the most stringent ADEC cleanup levels, Second, any proposal to transport soil off site requires ADEC approval in accordance with 18 AAC 78.274(b), Third drinking water wells may not be installed on site, Fourth, all remaining monitoring wells on site must be decommissioned in accordance with ADEC guidance and documented in a report to ADEC. Final site closure will be considered if it can be demonstrated that soil and groundwater at the site meet the most stringent ADEC cleanup levels. | Grant Lidren |
| 6/30/2008 | Update or Other Action | The ADEC received, "The Well Decommissioning Report, 1301 Whitney Road", submitted by Shannon & Wilson, dated June, 30 2008. Out of the six remaining MWs alloted for decommissioning, only two were located and decomisioned. A magnetometer was used in an attempt to locate the remaining four monitoring wells to no avail. | Grant Lidren |
| 6/13/2012 | Update or Other Action | Staff changed from Grant Lidren to IC Unit. | Kristin Thompson |
| 7/9/2012 | Institutional Control Compliance Review | IC review conducted, five year review of conditions added as a requirement, and the reminder system was updated. | Evonne Reese |
| 12/4/2013 | Institutional Control Update | An IC reminder letter was issued to the responsible party on this date. | Kristin Thompson |
| 12/11/2013 | Institutional Control Update | Received a phone call from the letter recipient with a request to change the mailing address to a P.O. box address. I made the change in the site address record. | Evonne Reese |
| 1/17/2017 | Institutional Control Compliance Review | IC compliance review conducted. Affiliates information and Closure/IC Details updated. Periodic review of site conditions was reduced from five years to three years due to the groundwater use restriction. Remaining monitoring wells were decommissioned in 2008; the monitoring well decommissioning requirement was removed from the site record. All other institutional controls remain in effect. An ICs Verification letter was issued to the responsible party with a copy e-mailed to the landowner. Reminder system set to follow-up every three years. | Kristin Thompson |
| 8/13/2020 | Institutional Control Update | Contacted by Russell at Alaska Railroad to inform me that there are currently no leaseholders on this property and there are not any plans to lease it out in the future. The building has been removed from the site and the property is currently being used for railroad equipment storage. There are no construction plans and the soil will not be disburbed. | Evonne Reese |
Contaminant Information
| Name | Level Description | Media | Comments |
|---|---|---|---|
| DRO | > Table C | Groundwater | |
| DRO | Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation | Soil |
Control Type
| Type | Details |
|---|---|
| CS Database Notation And Letter To Landowner/RP |
Requirements
| Description | Details |
|---|---|
| Advance approval required to transport soil or groundwater off-site. | Any proposal to transport soil off site requires ADEC approval in accordance with 18 AAC 78.274(b). Standard condition. |
| Groundwater Use Restrictions | Drinking water wells may not be installed on site |
| Periodic Review | Three year review regarding land use conditions. (Added during the IC compliance review.) |
| Movement or use of contaminated material (including on site) in a manner that results in a violation of the water quality standards is prohibited (18 AAC 70) | Standard condition. |
No associated sites were found.