Division of Spill Prevention and Response

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Tesoro Petro Products and Petro Products Office


Incident location map. Summary Date: April 2003 View detailed information from database on this site.arrow
Status: Open Database Name: Tesoro - Petro Products (formerly Renner’s Gas & Save) and Petro Products Office
Location: 6401 Lake Otis Parkway, Anchorage, AK Latitude/Longitude: See database entry
DEC Contaminated Sites Contact: Rich Sundet, Project Manager - (907) 269-7578
Photo: USTs and dispensers have been removed and a coffee shop now sits over the former dispenser area of the former Renner Gas Station.

Petro Products Office

Description

 

The Tesoro - Petro Products (formerly Renner’s Gas & Save) site and the Petro Products Office site are both located at 6401 Lake Otis Parkway, Anchorage, Alaska. The two sites are on one lot located on the east side of Lake Otis, south of East 64th Street, between 64th Street and the North Fork of Little Campbell Creek. Originally the two spill sites were separate facilities, DEC facility # 0129 (also called Petro Products Office) and # 1421 (Tesoro – Petro Products, formerly called Renner’s Gas & Save). The Tesoro – Petro Products site operated as a retail gasoline service station for approximately 15 years. The Petro Products Office site operated as a “card-lock” UST facility, but now a building on site serves as the Petro Products’ office and serves as a truck maintenance shop. The two contaminated sites have since been combined in the DEC database to reflect one facility.


At the Tesoro-Petro Products (formerly Renner’s Gas & Save) site, soil and groundwater contamination were identified at the site in July 1987, during the Lake Otis Parkway Project. The Renner’s UST system, which consisted of two 12,000-gallon gasoline tanks and one 8,000-gallon diesel tank, along with the associated piping, was removed and replaced with a new system in October 1988. A Compliance Order by Consent (COBC) was signed in December 1988. Site assessments were performed in 1988 and 1989. The three USTs were removed in the summer of 1997 and approximately 1,200 cubic yards of petroleum contaminated soil was excavated. In May 1998, the former gasoline station building was removed and approximately 1400 tons of petroleum contaminated soil were excavated and thermally remediated off-site.


Photo of site location.

6401 Lake Otis Parkway - Location of both Petro Products Office and Tesoro Petro Products (former Renner's Gas Station)


In June 1999, the Petro Products Office UST system, which consisted of one 3,000-gallon diesel tank, one 8,000-gallon diesel tank and one 500-gallon gasoline tank along with the associated piping, were excavated and removed. Soil remains above applicable cleanup levels.


Facility #1421 continues to receive grants through the State of Alaska’s Storage Tank Financial Assistance Program to fund cleanup activities. The owner/operator of the two sites has recently requested that Facility #0129 be included to be eligible to receive grant funds.

 


Public Health and Environmental Concerns

 

The contaminants of concern (COCs) at both sites are primarily petroleum; diesel, gasoline and gasoline components (BTEX). Petroleum contaminated soil remains on-site at both sites. Extensive impacts to the groundwater have been identified both on and off-site, and the plume is migrating towards the North Fork of Little Campbell Creek. However, neither facility has been adequately characterized, nor has complete contaminant plume delineation been determined.

 


Photo: USTs and dispensers have been removed and a coffee shop now sits over the former dispenser area of the former Renner Gas Station.

Tesoro Petro Products (former Renner's Gas Station)

Current Status

 

Current status unknown. The last groundwater monitoring event with available data was in May 2000. Recently, a groundwater monitoring event occurred in late March 2003 at the Tesoro –Petro Products (formerly Renner’s Gas & Save), but sampling data has not yet been provided to the DEC. DEC met with the property owner and his consultant in December 2002 and requested workplans to further delineate the contamination at both sites. DEC followed-up that meeting with a letter. Workplans to perform further characterization investigations at both contaminated sites were submitted in March and April 2003, and are under review by staff within the Contaminated Sites Program.