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CALIFORNIA
Water Boards
Central Valley Regional Water Quality Control Board
TO: Shelton R. Gray
Senior Engineering Geologist
Douglas K. Patteson
Supervising WRC Engineer
Clay L. Rodgers
Assistant Executive Officer
FROM: John D. Whiting e%'
Engineering Get6logist
PG No. 5951
DATE: 1 20 September 2016
SUBJECT: CASE CLOSURE SUMMARY, UNDERGROUND STORAGE TANK RELEASE,
FORMER PHOENIX & SON GARAGE & STORAGE, 1601 SOUTH UNION
AVENUE, BAKERSFIELD, KERN COUNTY, RB CASE 5T15000859
Background
Site Summary
The underground storage tank (UST) release site (Site) is on the west side of South Union
Avenue, north of Wilson Road and south of Ming Avenue, in an area of commercial properties.
A railroad right-of-way and residential properties are west of the Site and commercial and
residential properties are to the south. 'The Site is currently a commercial trucking and truck
parking facility. An office building and parking lot is in the eastern portion of the Site, adjacent
to South Union Avenue. Shop buildings are west of the office. The Kern County Assessor's
Tax Numbers are 166- 230- 09 -00 -3 and -166- 230- 09 -00 -3.
Analytical results indicated concentrations of petroleum hydrocarbons in soil samples collected
beneath two 10,000- gallon, diesel USTs, one 2,500 - gallon waste oil UST and fuel dispensers,
during May 2000 UST system removal activities. The Kern County Environmental Health
Services Division (Kern County) considered,this evidence of a release, and filed an
Unauthorized Release Report dated 4 October 2000. Kern County referred the case to the
Central Valley Regional Water Quality Control Board (Central Valley Water Board) by a letter
dated 11. August 2008.
Soil Investigation
Results of Site investigation overseen by Kern County during 2003 and 2004, determined that
concentrations of total petroleum hydrocarbons as diesel (TPH -d) of 1,000 milligrams per
kilogram (mg /kg) or greater extended to approximately 65 and 70 feet below ground surface
(bgs), beneath the former USTs and dispenser island respectively. TPHd up to 93,000 mg /kg
and benzene up to 7 mg /kg were detected. The fuel oxygenate methyl tertiary butyl ether
KARL E. LONGLEY SOD, P.E., CHAIR I PAMELA C. CREEDON P.E., BCEE, EXECUTIVE OFFICER
1685 E Street, Fresno, CA 93706 1 www. waterboards .ca.gov /centralvallay
, -M RECYCLED PAPER
EDMUND G. BROWN JR.
"b
GOVERNOR
MATTHEW RODRIQUEZ
SECRETARY FOR
ENVIRONMENTAL PROTECTION
SUBJECT: CASE CLOSURE SUMMARY, UNDERGROUND STORAGE TANK RELEASE,
FORMER PHOENIX & SON GARAGE & STORAGE, 1601 SOUTH UNION
AVENUE, BAKERSFIELD, KERN COUNTY, RB CASE 5T15000859
Background
Site Summary
The underground storage tank (UST) release site (Site) is on the west side of South Union
Avenue, north of Wilson Road and south of Ming Avenue, in an area of commercial properties.
A railroad right-of-way and residential properties are west of the Site and commercial and
residential properties are to the south. 'The Site is currently a commercial trucking and truck
parking facility. An office building and parking lot is in the eastern portion of the Site, adjacent
to South Union Avenue. Shop buildings are west of the office. The Kern County Assessor's
Tax Numbers are 166- 230- 09 -00 -3 and -166- 230- 09 -00 -3.
Analytical results indicated concentrations of petroleum hydrocarbons in soil samples collected
beneath two 10,000- gallon, diesel USTs, one 2,500 - gallon waste oil UST and fuel dispensers,
during May 2000 UST system removal activities. The Kern County Environmental Health
Services Division (Kern County) considered,this evidence of a release, and filed an
Unauthorized Release Report dated 4 October 2000. Kern County referred the case to the
Central Valley Regional Water Quality Control Board (Central Valley Water Board) by a letter
dated 11. August 2008.
Soil Investigation
Results of Site investigation overseen by Kern County during 2003 and 2004, determined that
concentrations of total petroleum hydrocarbons as diesel (TPH -d) of 1,000 milligrams per
kilogram (mg /kg) or greater extended to approximately 65 and 70 feet below ground surface
(bgs), beneath the former USTs and dispenser island respectively. TPHd up to 93,000 mg /kg
and benzene up to 7 mg /kg were detected. The fuel oxygenate methyl tertiary butyl ether
KARL E. LONGLEY SOD, P.E., CHAIR I PAMELA C. CREEDON P.E., BCEE, EXECUTIVE OFFICER
1685 E Street, Fresno, CA 93706 1 www. waterboards .ca.gov /centralvallay
, -M RECYCLED PAPER