Site Report: ARRC Diesel Tank Pumphouse
| Site Name: | ARRC Diesel Tank Pumphouse |
|---|---|
| Address: | Whitney Road, Ship Creek Railroad Yard, Anchorage, AK 99501 |
| File Number: | 2100.38.038 |
| Hazard ID: | 1208 |
| Status: | Active |
| Staff: | Michael Hooper, 9074515174 michael.hooper@alaska.gov |
| Latitude: | 61.227076 |
| Longitude: | -149.875025 |
| 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
In 1991, 600 gallons of diesel released from the engine loading pump due to a broken seal. Approximately 100 gallons of diesel was recovered by absorbent pads. Approximately 750 square feet of soil may be impacted. This site is located at the Groundwater Area 7 (GW-7) in the Anchorage Terminal Reserve. Groundwater contains benzene up to 0.25 milligrams per liter (mg/L) and C12-C16 aliphatics up to 0.191 mg/L. For more information, consult Contaminated Sites File Number 2100.38.447 ARRC Anchorage Terminal Reserve. Remedial Investigation ARRC Anchorage Terminal Reserve U.S. Environmental Protection Agency (EPA) Docket No. Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) 10-2004-0065, submitted by ENSR.
Action Information
| Action Date | Action | Description | DEC Staff |
|---|---|---|---|
| 11/5/1991 | Site Added to Database | Diesel fuel spill. | Former Staff |
| 6/22/1993 | Update or Other Action | Notice of Release sent which includes observation on 6/15 of surface staining. | Former Staff |
| 8/16/2004 | Update or Other Action | File number switched from CS57.08 to 2100.38.038 | Sarah Cunningham |
| 9/21/2007 | Exposure Tracking Model Ranking | Intitial Ranking Complete for Source Area: 72187 (Autogenerated Action) | |
| 11/1/2011 | Update or Other Action | Update: this site is located at the Groundwater Area 7 in the Anchorage Terminal Reserve. Groundwater contains benzene up to 0.25 mg/L and C12-C16 aliphatics up to 0.191 mg/L. For more information consult CS file # 2100.38.447 ARRC Anchorage Terminal Reserve Remedial Investigation ARRC Anchorage Terminal Reserve U.S. EPA Docket No. CERCLA 10-2004-0065, submitted by ENSR. | Grant Lidren |
| 2/19/2015 | Potentially Responsible Party/State Interest Letter | PRP letter sent to ARRC on this date | Grant Lidren |
| 3/15/2018 | Site Characterization Report Approved | ADEC received the Letter Report for Groundwater Sampling within the ARRC Anchorage Terminal Reserve Whitney Road, Anchorage, Alaska ADEC File # 2100.38.447, Hazard ID 4074 Rev. 1.3 submitted by RSE and dated March 9, 2018. Eleven monitoring wells were proposed to be sampled within the Anchorage Terminal Reserve: MWB17, DPB21, MW24, MWB09, MWA05, MWA07, DPB04, DPA32, MWA22, MWE05, and MWE06. Two of these wells, DPB21 (GW-1) and MWE05 (GW-7), were not sampled due to poor well condition and free product respectively. These 11 MWs are half the wells on the property, the remaining wells will be sampled in 2018. Monitoring wells MW24 (GW 2/3) and MWE06 (GW-7) produced purge water emitting strong hydrocarbon odor. Monitoring well MWA07 (GW-6) produced purge water with visible sheen. Monitoring wells MWA07 (GW-6) and MWE06 (GW-7) contained DRO of 2.42 mg/L and 27.6 mg/L respectively exceeding the ADEC Table C Groundwater Cleanup Level (GCL) of 1.5 mg/L. Sampling of monitoring wells MWA05 (GW-6) and MWE06 (GW-7) contained RRO of 2.42 mg/L and 3.17 mg/L respectively exceeding the GCL of 1.1 mg/L RRO. Monitoring well MWE06 (GW-7) contained 1,2,4-trimethylbenzene at 117 ug/L exceeding the GCL of 15 ug/L and naphthalene at 270 ug/L exceeding the GCL of 1.7 ug/L. Sample MWB17 (GW-1) contained chloroform at 2.90 ug/L above the GCL of 2.2 ug/L chloroform and trichloroethylene(TCE) at 14.7 ug/L exceeding the GCL of 2.8 ug/L. Monitoring well DBP04 (GW-4) contained vinyl chloride at 1.27 ug/L exceeding the GCL of 0.19 ug/L.MWA05 (GW-6) contained cadmium (25.3 ug/L) and vanadium (180 ug/L) each exceeding the respective GCL of 9.2 ug/L cadmium and 86 ug/L vanadium. This well had evidence of compromise, with an exposed wellhead that may have contributed to groundwater being exposed to external conditions and should be decommissioned. | Grant Lidren |
| 9/27/2019 | Update or Other Action | On Friday September 27, 2019, monitoring well MWE05 in the ARRC Terminal Reserve was investigated by RSE using an interface probe. Free-product noted in well from 3.51 feet to 3.86 feet (measuring from the top of PVC casing). MWE05 is 10.72 feet deep. The well was found in good condition. A strong odor was noted upon opening pulling the plug from the PVC casing. | Grant Lidren |
Contaminant Information
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Control Type
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Requirements
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No associated sites were found.