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Site Report: Sourdough Express

Site Name: Sourdough Express
Address: 600 Driveway; 600 Driveway Street, Fairbanks, AK 99701
File Number: 102.26.043
Hazard ID: 24303
Status: Cleanup Complete - Institutional Controls
Staff: IC Unit, 9074655229 dec.icunit@alaska.gov
Latitude: 64.851590
Longitude: -147.725560
Horizontal Datum:WGS84

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

RP = Sourdough Properties, Inc. (rpltr) (Illinois-Minnie)

Action Information

Action Date Action Description DEC Staff
5/1/1989 Update or Other Action DOT contracted Shannon and Wilson, Inc. to investigate past uses and potential hazards at the site as part of a right-of-way road project. Shannon and Wilson, Inc. report, "Preliminary Hazardous Waste Site Evaluation, proposed Minnie Street Connector, Fairbanks, Alaska" found no prior documented spills or releases at this site. Tamara Cardona-Marek
12/1/1990 Update or Other Action (Old R:Base Action Code = SI - Site Investigation). DOT contracted Shannon and Wilson, Inc. to investigate site for proposed right-of-way. Their report, "Final Report: Illinois Street and Minnie Street Connector Hazardous Waste Field Investigation, phase II" dated 12/90 reports 3 soil samples from groundwater well had TPH levels exceeding 100 ppm with a range of 8,570 - 15,600 ppm. A water sample from the same groundwater well had BTEX concentrations of 880 ppb benzene, 8,100 ppb toluene, 5,000 ppb ethylbenzene, and 59,000 ppb xylene. No PCBs, herbicides, or Halogenated Volatile Organics were detected in surface soil samples, although elevated levels of arsenic and mercury were detected (182.5 ppm and 20.2 ppm respectively). Tamara Cardona-Marek
1/11/1991 Update or Other Action Hydrocarbon contamination of soil and groundwater and possible heavy metal soil contamination. Tamara Cardona-Marek
4/29/1991 Update or Other Action (Old R:Base Action Code = RAPR - Remedial Action Plan Review (CS)). Preliminary cleanup alternatives and cost estimates for remediation of the Minnie Street Connector Project submitted to Alaska DOT April, 1991 by Shannon and Wilson. Estimates based on many assumptions and recognizes that information concerning extent of contamination is limited. Proposes floating product recovery, soil remediation, and groundwater remediation over 11 year period at a cost of $10,207,000. Recommends additional sampling for mercury. Tamara Cardona-Marek
1/24/1992 Underground Storage Tank Site Characterization or Assessment SA1; Reviewing site assessment, will comment. Send NORC and request Action plan. Former Staff
1/24/1992 Leaking Underground Storage Tank Release Confirmed - Petroleum LUST Site created in CSP for source area ID 78468 ADD; Former Staff
1/24/1992 Site Added to Database Former Staff
1/28/1992 Leaking Underground Storage Tank Cleanup Initiated - Petroleum LCAU; Thomas reports: Shannon & Wilson oversaw UST removal which resulted in the removal of 160 yards of contaminated soils. Ultimate fate of soils unknown. : LCAU date changed DB conversion Former Staff
3/3/1992 Underground Storage Tank Site Characterization or Assessment SA1R; Sent NORL requiring cleanup plan. Feb. 15(?). Former Staff
3/3/1992 Update or Other Action RPL2; ADEC/Peterson sent PRP-CS Database Notification letter requesting PRP update and provide additional environmental information concerning the site. As of "complete date" no response was ever rec'd. Former Staff
8/12/1992 Update or Other Action UPD; Reviewed by Hung. Former Staff
12/18/1992 Update or Other Action CORR; Thomas: notified by letter, party of ADEC's intent to use Response Fund monies to initiate a comprensive area-wide Phase I site Assessment of the Illinois-Minnie Site. Asks to submit questions and comments. Former Staff
12/28/1992 Update or Other Action CORR; (OSLP) Thomas: ARRC submitted comments and preferred site Assessment plan for Illionois-Minnie Site. This project was first proposed in 1990. Thomas returned corres. to ARRC thanking for comments. Will incorporate into ADEC final version. Will keep ARRC and all parties updated on future actions. Former Staff
6/6/1994 Update or Other Action CORR; Wingerter sent letter informing RP of their financial liability under new ADEC cost recovery policy. State is authorized, under Section 9003(h) of the Resource Conservation and Recovery Act to take action on this LUST facility. Former Staff
1/31/1995 Update or Other Action UPD; SITE SUMMARY: Ground water impact known, but cleanup delayed pending the outcome of MSLUG efforts. DEC notified operator of draft COBC to guide cleanup in 1995. Former Staff
11/20/1997 Update or Other Action ADEC sends Notification of Intent to Cost Recover Letter to Current Owner: SOURDOUGH EXPRESS, INC. Former Staff
7/10/2002 Update or Other Action Changed the Latitude, Longitude, Method Accuracy, Accuracy and Unit fields. Tamara Cardona-Marek
1/28/2004 Update or Other Action Transferred DEC staff lead from John Carnahan Cynthia Pring-Ham
12/15/2005 Update or Other Action Received a letter from Sourdough requesting an extention to April 1, 2006 in order to respond to ADEC regarding site characterization. Deborah Williams
10/10/2006 Update or Other Action ADEC reviewed and approved a workplan to install a downgradient monitoring well and sample it and MW-4 which is located upgradient for DRO, GRO, VOCs and SVOCs. Deborah Williams
11/13/2006 Update or Other Action ADEC received the Groundwater Monitoring report for the Sourdough Express site. Travis Peterson install a drive point to the north of AR47. Results of the NW-1 were below ADEC cleanup levels for DRO, GRO and VOCs except for PCE which was 5.33 ug/l. An upgradient monitoring well was sampled (MW-4) as well. The results showed detections of many compounds below ADEC cleanup levels except for DRO which was 1.64 ppm. Deborah Williams
11/20/2006 Update or Other Action The Sourdough Express petroleum contamination has been dealt with under the leaking underground storage tank site 102.26.043. The 1990 surface soil samples that were collected SS-8 on the property to the north of Sourdough Express that had elevated levels of arsenic and mercury is currently owned by Alaska Railroad Corporation. I changed the landowner to reflect the current landowner information. I changed the RP to RP not identified. Tamara Cardona-Marek
12/21/2006 Institutional Control Record Established The conditions for the closure are the following: 1. A Notice of Environmental Contamination shall be recorded with the State of Alaska Recorder’s Office that identifies the nature and extent of the contamination remaining on site and any site specific conditions attached to the property. 2. An institutional control will be listed on the ADEC database identifying the nature and extent of the contamination remaining on site and any site specific conditions. 3. In accordance with 18 AAC 78.274(b), ADEC approval must be obtained prior to any proposed transport and/or disposal of soil or groundwater from this site. 4. No groundwater wells shall be installed on the property without the prior review and approval of ADEC. 5. Any proposed excavation in the former diesel tank excavation area requires the owner and/or operator of the site submit a plan to ADEC for review and approval before soil is excavated. Deborah Williams
12/21/2006 Conditional Closure Approved Based on the information provided to date, ADEC has determined that cleanup efforts have been effective in reducing the contamination at the site. There is residual soil and groundwater contamination remaining on site in the area of the former diesel tanks. However, the site specific conditions established in this decision document (if complied with) will ensure the remaining contamination does not pose an unacceptable risk to human health or the environment. Deborah Williams
9/11/2007 Update or Other Action EPA (UIC Program) informed DEC that Sourdough Enterprises (Jeff Gregory) sent a signed statement indicating the fluids collected in the floor drains are stored in holding tanks and then periodically discharged on site (ie. gravel driveway; east of the building or parking area). EPA approves the discharge of this water per email from EPA (Chris Bellovary) and concluded that no UIC wells are present on site. Tamara Cardona-Marek
3/21/2008 Exposure Tracking Model Ranking Intitial Ranking Complete for Source Area: 78468 (Autogenerated Action)
3/21/2008 Update or Other Action Initial ranking with ETM completed. Tamara Cardona-Marek
3/21/2008 Exposure Tracking Model Ranking Updated Ranking Complete for Source Area: 78468 (Autogenerated Action)
3/21/2008 Update or Other Action A new updated ranking with ETM has been completed. Tamara Cardona-Marek
3/21/2008 Exposure Tracking Model Ranking Intitial Ranking Complete for Source Area: 78469 (Autogenerated Action)
3/24/2008 Update or Other Action This LUST site also includes contamination with mercury and arsenic once identified during the Minnie-Illinois Connector hazardous material investigation done by DOT in 1989. A separate CS site was created and deleted. Currently site IC's include tracking of contaminated soils containing arsenic and/or mercury. Contamination was originally found in soil on the Southwest corner of the Sourdough Express property. Tamara Cardona-Marek
3/25/2008 Update or Other Action Sent letter to RP informing them that IC's have been modified to include conditions placed to address historical mercury and arsenic contamination. Tamara Cardona-Marek
3/30/2011 Institutional Control Compliance Review IC review conducted, tickler updated, and periodic reporting requirement added Erik Norberg
1/31/2012 Institutional Control Compliance Review Add a Periodic Requirement to the site conditions which will require contacting the responsible party to verify that site conditions have not changed. Contact should be made at least every three years beginning spring 2012. The reminder system has been set up with this information. Evonne Reese
1/31/2012 Update or Other Action Staff changed from Cardona-Marek to IC Unit. Evonne Reese
7/8/2013 Update or Other Action Site symbol visually adjusted using ArcGIS and documents from file. 64.851590, -147.725560. 7/8/13; MLB. Michelle Barnes
12/4/2013 Institutional Control Update An IC reminder letter was issued to the responsible party on this date. Kristin Thompson
4/23/2019 Institutional Control Update An Institutional Controls reminder letter mailed to the responsible party/landowner on this date. Mossy Mead

Contaminant Information

Name Level Description Media Comments
DRO > Human Health/Ingestion/Inhalation Soil
DRO > Table C Groundwater
Benzene > Table C Groundwater
Ethylbenzene > Table C Groundwater
Xylenes (total) > Table C Groundwater
Tetrachloroethene > Table C Groundwater
Toluene > Table C Groundwater
Mercury - Total Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil
Arsenic - Total Between Method 2 Migration to Groundwater and Human Health/Ingestion/Inhalation Soil

Control Type

Type Details
CS Database Notation And Letter To Landowner/RP
Notice of Environmental Contamination

Requirements

Description Details
Excavation / Soil Movement Restrictions Any proposed excavation in the former diesel tank excavation area or the area previously sampled for the Minnie St. Connector (Southwest corner of porperty) requires that the owner and/or operator of the site submits a plan to ADEC for review and approval before soil is excavated.
Groundwater Use Restrictions No groundwater wells shall be installed on the property without the prior review and approval of ADEC.
Advance approval required to transport soil or groundwater off-site. In accordance with 18 AAC 78.274(b), ADEC approval must be obtained prior to any proposed transport and/or disposal of soil or groundwater from this site.
Periodic Review Contact the RP every three years starting in Spring 2012 to verify that site conditions have not changed.

No associated sites were found.

Missing Location Data

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State of Alaska Department of Environmental Conservation

P.O. Box 111800
Juneau, AK 99811-1800
Phone: 907-465-5066
Fax: 907-465-5245
TDD: 800-770-8973
Physical Location: 410 Willoughby