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Site Report: Residence - Erin Drive HHOT

Site Name: Residence - Erin Drive HHOT
Address: 3511 Erin Drive, North Pole, AK 99705
File Number: 100.38.168
Hazard ID: 3233
Status: Active
Staff: Shawn Tisdell, 9074512752 shawn.tisdell@alaska.gov
Latitude: 64.726923
Longitude: -147.286490
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

On September 30, 1999, the current residents of 3511 Erin Drive hired a local contractor to replace their 500-gallon capacity heating oil tank. When the existing tank was removed, a large hole (approximately 2 square inches) was discovered in the side of the tank. Based on information provided by the homeowner, in March 1997, the tank had been moved from a location near the garage to the middle of the yard to meet distance requirements between the drinking water well and buried fuel storage. During the excavation of the former tank, stained soil was observed, and hydrocarbon odors were noted by the homeowners. EMCON estimated the volume of contaminated soil to be 90 to 400 cubic yards. They estimated the volume of fuel released at this site is between approximately 300 to 1,500 gallons. Drive point wells were installed upgradient, in the source area and downgradient of the release. Benzene levels at the source area was 552 ppb benzene and 30.8 ppm DRO. No impact appeared to be present downgradient on-site. A responsible party was identified as Homestead Builders, 1235 Lakloey Drive, North Pole, AK 99705. They are unwilling to take responsibility for the hole in the 500-gallon heating oil tank that was the cause of the contamination. They were the contractors responsible for relocating the heating oil tank in 1997.

Action Information

Action Date Action Description DEC Staff
2/9/2000 Update or Other Action A limited Site Characterization report was performed by EMCON on 3511 Erin Drive. Based on calculations performed by EMCON personnel, they estimated that between 90 and 400 cubic yards of impacted soil are present on the site. It was also estimated that between 360 gallons and 1,200 gallons of fuel were released at the site. As of February 4, 2000, a total of approximately 75 gallons of fuel had been removed. Three drive points were installed on-site. The drive point in the source area had 552 ppb benzene and 30.8 ppm DRO. The drive point downgradient (DP-3) was 3 ppb benzene and 0.424 ppm DRO. The drinking water well was also sampled on 11/12/99 and the results were non-detected for BTEX. Deborah Williams
7/28/2000 Update or Other Action Drinking water well was sampled and results were as follows: DRO < MRL (0.25 mg/l), benzene less than MRL (0.20 ug/l), ethylbenzene less than MRL (0.20 ug/l), toluene less than MRL (0.40 ug/l), and xylene less than MRL. Deborah Williams
10/1/2001 Update or Other Action Drinking water well was sampled and results were as follows: DRO < PQL (0.495 mg/l), benzene less than PQL (0.50 ug/l), ethylbenzene less than PQL (0.50 ug/l), toluene less than PQL (0.50 ug/l), and xylene less than PQL. Deborah Williams
11/6/2002 Site Added to Database DRO contamination from a home heating oil tank release. Deborah Williams
11/7/2002 Site Ranked Using the AHRM Preliminary ranking. Deborah Williams
2/16/2006 Update or Other Action ADEC received sample results from the homeowner on drinking water well sample. The results were all non-detect for benzene, ethylbenzene, xylene, and toluene. The sample date was 2/7/06. Deborah Williams
3/17/2006 Update or Other Action Drafted a letter to the Nick and Cynthia Erickson regarding the additional work required at the site in order to move towards a NFRAP determination. Deborah Williams
5/4/2006 Update or Other Action Received Shannon and Wilson report on March 2006 groundwater sampling. Results indicated that DP-1 and DP-3 which are located upgradient and downgradient of the source area were non-detect for DRO and BTEX. DP-2 which is located in the source area had benzene levels at 103 ppb and DRO at 6.14 ppm. Deborah Williams
7/5/2006 Update or Other Action On June 15, 2006, Shannon and Wilson installed and sampled a well point (DP-4) west-northwest of the release area in the estimated down gradient location of the source area. No GRO, BTEX or DRO were detected in the DP-4 sample. Based on groundwater flow measurements, the location of this well point appears to be adequately placed to characterize conditions down gradient of the source area. Deborah Williams
11/9/2007 Update or Other Action New owner is Johnna Havard- institutional control should be attached to deed- MW DP-2 to be sampled within next three years, DW well to be sampled annually, soil not to be moved etc. Neal Everson
5/21/2008 Exposure Tracking Model Ranking Initial ranking with ETM completed. Neal Everson
10/6/2008 Update or Other Action Monitoring report submitted by Shannon & Wilson. DP-2 (source monitoring well) contains 7.22 mg/L DRO and 0.136 mg/L benzene. Shannon & Wilson indicated that a stable or decreasing trend could not be determined from the historical data collected at DP-2 and recommended continued monitoring. Drinking water well, which is located approximately 30 feet from the residence was also tested but no contaminants were detected. Janice Wiegers
7/28/2011 Potentially Responsible Party/State Interest Letter PRP letter sent to current landowner. Called owner to explain the PRP letter - left voicemail. Janice Wiegers
8/25/2011 Update or Other Action Received email for owner indicating that water testing will be completed. Janice Wiegers
3/14/2013 Update or Other Action Site symbol visually adjusted using ArcGIS.com and Bing satellite imagery. Laurel Gale
7/25/2016 Update or Other Action DEC reviewed site file, sent letter RP indicating additional investigative work is needed before the site can be closed. These steps are: 1)Demonstrating that steady state or decreasing groundwater contaminant trends are occurring 2) Determining that free product is recovered to the maximum extent practicable 3)Providing results that petroleum contaminants are still not being detected in the drinking water well. 4)Evaluate vapor intrusion potential and possibly conduct tests to indicate vapor intrusion is not a significant exposure pathway. Response deadline for letter is August 25, 2016. Shawn Tisdell
8/31/2016 Update or Other Action Sent email to RP requesting response to July 25th letter as 30 day response time has passed. Shawn Tisdell
8/31/2016 Update or Other Action RP indicated that they will get a quote from Shannon and Wilson for the requested work, but finances will not allow additional site work until it is put into the sale of the house as escrow. Shawn Tisdell
12/6/2016 Update or Other Action Letter sent by DEC to RP regarding participation in the HHOT pilot project. Shawn Tisdell
2/1/2017 Potentially Responsible Party/State Interest Letter Property ownership transfer occurred on November 7, 2016. A PRP letter was sent together with an invitation for involvement in the home heating oil tank pilot program. February 15, 2017 was the deadline to respond. Shawn Tisdell
2/4/2017 Update or Other Action Certified SOA notification of hazardous substance liability letter received by RP. Shawn Tisdell
3/8/2017 Update or Other Action DEC letter with an invitation for involvement in the home heating oil tank pilot program and an extended deadline to March 15, 2017 was left at residence with an adult staying at the house. Instructions were provided to deliver the letter to the home owner. Shawn Tisdell
12/5/2018 Exposure Tracking Model Ranking A new updated ranking with ETM has been completed for source area 74208 500-gallon HOT. Shawn Tisdell
12/10/2018 Potentially Responsible Party/State Interest Letter New property owner was mailed a letter discussing the home heating oil program and a potential responsible party letter. Shawn Tisdell
5/29/2019 Update or Other Action DEC letter sent to RP requesting response by June 6th, 2019 to set up a site visit to determine current site conditions and discuss a site closure pathway. Shawn Tisdell

Contaminant Information

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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
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