DSHW-2018-004406 - 0901a06880820135

LEINFELDER
Olv o'We..)ce Management
:-and Rad:ation Control
MAY 1 C 2018

Bright People. Right Solutions.

DSHW-2016 - 004-4-%
May 16, 2018
Kleinfelder Project No.: 20190420.001A
Mr. Scott Anderson
Division Director
Division of Waste Management and Radiation Control
195 North 1950 West
Salt Lake City, Utah 84116
SUBJECT: Work Plan for Phase II Site Assessment
Truck Loading Rack Facility
Tesoro Logistics Operations LLC
EPA ID UTD000826362
Salt Lake City, Utah
Dear Mr. Anderson:
On behalf of Tesoro Logistics Operations LLC, located at 474 West 900 North in Salt Lake City,
Utah, Kleinfelder, inc. (Kleinfelder) has prepared this Subsurface Characterization Work Plan for
the Truck Loading Rack Facility. This Work Plan was prepared in response to a written request by
you dated March 29, 2018.
Please contact Mr. Peter Hendricks at 801.521.4818 if you have any questions regarding this
Work Plan.
Respecffully submitted,
KLEINFELDER
64.'KubtOrotexitek_
Kerry L. Ruebelmann, PG
Senior Program Manager
20190420.001A / SLC18R78264 Page 1 of 1 May 16, 2018
@ 2018 Kleinfelder www.kleinfelder.com
849 West Levoy Drive, Suite 200, Taylorsville, UT 84123-2544 p l 801.261.3336 f l 801.261.3306
(..-11-LEY/Vic-EZA0E-1?
Bright Peop/e. Right So/tit/ohs.
SUBSURFACE INVESTIGATION WORK PLAN
TRUCK LOADING RACK FACILITY
TESORO LOGISTICS OPERATIONS LLC
SALT LAKE CITY, UTAH
EPA ID UTD000826362
KLEINFELDER PROJECT NO: 20190420.001A
MAY 1 6, 2018
Copyright 2018 Klelnfelder
All Rights Reserved
ATED REPRESENTATIVES MAY USE THIS DOCUMENT AND ONLY FOR THE SPECIFIC
OJECT FOR WHICH THIS REPORT WAS PREPARED.
Page i of iii May 16, 2018
%lefty kleinfeldercorn
KLE/NFELDER aright P.PPe Right Sektions.
A Work Plan Prepared for:
Mr. Peter Hendricks
Tesoro Refining and Marketing Company, LLC
474 West 900 North
Salt Lake City, Utah 84103-1594
SUBSURFACE CHARACTERIZATION WORK PLAN
TRUCK LOADING RACK FACILITY
TESORO LOGISTICS OPERATIONS LLC
SALT LAKE CITY, UT
EPA ID UTD000826362
KLEINFELDER PROJECT NO: 20190420.001A
Prepared by:
Àh7çcof Dria
Kerry L. R belmann, PG
Senior Program Manager
Andrew Alvaro
Project Manager
Kleinfelder Project No. 20190420.001A
May 16, 2018
(-""\-KLEINFELDER 849 West Levoy Drive, Suite 200
Taylorsville, Utah 84123
pl 801.261.3336
f l 801.261.3306

Bright People. Right Solutions.

This document was prepared for use only by the client, only for the purposes stated, and within a reasonable time from issuance, but in no event later than one year from the date of the report. Non-commercial, educational, and scientific use of this report by regulatory
agencies is regarded as a "fair use" and not a violation of copyright. Regulatory agencies may make additional copies of this document
for internal use. Copies may also be made available to the public as required by law. The reprint must acknowledge the copyright and
indicate that permission to reprint has been received.
20190420.001A / SLC18R78264 Page ii of iii May 16, 2018
© 2018 Kleinfelder www.kleinfelder.com
KLE/NFELDER srlghtPeople Right Solutions.
TABLE OF CONTENTS
I
ISection Page
I1
INTRODUCTION 1
2 BACKGROUND 2
2.1 TRUCK LOADING RACK FACILITY DESCRIPTION 2
I
2.2 SUMMARY OF PRIOR INVESTIGATIONS 2
2.2.1 Subsurface Investigation September 2017 2
2.2.2 Subsurface Investigation November 2017 3
I3 SOIL AND GROUNDWATER INVESTIGATION 4
3.1 SOIL AND GROUNDWATER SAMPLE TARGET AREAS 4
3.2 SOIL SAMPLE COLLECTION AND LABORATORY ANALYSIS 4 I 3.2.1 Pre-Investigation Activities 4
3.2.2 Soil Sample Collection Activities 4
3.2.3 Soil Sample Laboratory Analysis 5
I
3.3 GROUNDWATER SAMPLE COLLECTION AND LABORATORY ANALYSIS 6
3.3.1 Groundwater Sample Laboratory Analysis 6
3.4 QUALITY ASSURANCE/QUALITY CONTROL 6 I 3.5 INVESTIGATIVE DERIVED WASTE 6
4 REPORT 8
5 REFERENCES 9
FIGURES
Figure 1 Truck Loading Rack Facility Layout
Figure 2 Proposed Boring Locations
111
20190420.001A / SLC18R78264 Page iii of iii May 16, 2018 111
© 2018 Kleinfelder www.kleinfelder.com
c-/"."•\
( KLE/NFELDER 8rightPeople Right Soiutkm
1 INTRODUCTION
Kleinfelder, Inc. (Kleinfelder) has prepared this Work Plan for a subsurface characterization to be
performed at the Truck Loading Rack (TLR) facility associated with the Tesoro Refining &
Marketing Company Refinery (Refinery). In two prior investigations, soil, groundwater, and soil
vapor samples were collected and impacts to each media were identified. The Utah Department
of Environmental Quality (UDEQ) Division of Waste Management and Radiation Control
(DWMRC) has requested that Tesoro "define the nature and extent of impacts to soil and
groundwater" and to submit a work plan for this effort to the DWMRC for their review and approval
by May 16, 2018.
The plan for characterizing the nature and extent of impacts was based on the evaluation of the
data from the two prior investigations to identify data gaps or areas of potential impacts and then
select sampling locations. The sample locations are proposed to be either near the suspected
margins of a soil vapor plume or further downgradient from these margins, based on utility and
building constraints. Soil and groundwater samples will be collected from up-groundwater,
cross-groundwater, and down-groundwater gradient locations to help identify source area(s) and
determine if there are potential up-gradient influences.
This Work Plan describes proposed soil and groundwater sampling locations, collection methods,
laboratory analyses and the content of the resulting report.
20190420.001A / SLC18R78264 Page 1 of 9 May 16, 2018
@ 2018 Kleinfelder www.kleinfelder.com
KLE/NFELDER
‘,„\\.., Bright People Right Scautions.
2 BACKGROUND
2.1 TRUCK LOADING RACK FACILITY DESCRIPTION
The TLR facility is located south of the main Refinery and is bounded on the north by West
900 North Street, on the east by North 400 West Street, on the South by West 800 North Street,
and on the west by North 500 West Street. The TLR is used to load petroleum products
manufactured at the Refinery into tanker trucks for off-site deliver; no loading or unloading of
hazardous wastes occurs at the TLR. The TLR facility is divided into two halves, the eastern half
and the western half. The eastern half consists of the active truck loading rack and
administrative/operations building and the western half is utilized by the Wax Offload Facility. The
TLR Facility Layout is shown on Figure 1.
The active truck loading rack consists of five drive-through loading bays and an operator shack.
Southeast of the truck loading area, on the eastern property margin is an underground oil/water
separator, used to separate the oil and water components of the surface water runoff for the
general area surrounding the truck loading rack. Further south of the active truck loading area is
a storage/laydown yard as well as a drive-on scale and scale house. The western portion of the
TLR consists of buildings including an active vehicle maintenance shop, an out of service bulk
storage tank, and the Wax Offload Facility. Black waxy crude is offloaded from tanker trucks and
pumped through above ground piping into storage tanks at the Refinery.
2.2 SUMMARY OF PRIOR INVESTIGATIONS
2.2.1 Subsurface Investigation September 2017
On September 12, 2017, Kleinfelder conducted a Limited Phase II Investigation at TLR in
response to identification of impacted soils in the area of an oil water separator on the east side
of the facility (Figure 1) that was being decommissioned and replaced. This activity was completed
in March 2017 and soil and water generated during installation and dewatering activities were
characterized for disposal purposes. Petroleum hydrocarbon constituents were detected in both
soil and groundwater.
20190420.001A / SLC18R78264 Page 2 of 9 May 16, 2018
© 2018 Kleinfelder www.kleinfelder.com
( KLEINFELDER
gt People RIght5oMlom
In the September 2017 investigation, three soil borings (borings B-1 through
B-3) were advanced in the area of the former oil water separator using direct push methods to
collect soil, groundwater, and subsurface soil-vapor samples. Ambient air samples were also
collected from three locations (Fence, Ambient, and South Yard) (Kleinfelder, 2017). The borings
and air sample locations were located near the southeast corner of the active truck loading rack.
Benzene, toluene, ethylbenzene, total xylenes, and naphthalene (BTEXN) were reported at
concentrations above their respective laboratory reporting limits in the soil samples collected from
borings B-2 and B-3, at an approximate depth of 3 to 4 feet below ground surface (bgs). However,
none of the reported concentrations exceeded their respective Environmental Protection Agency
(EPA) Regional Screening Levels (RSLs) for Industrial Soil. A soil sample was not collected from
location B-1 due to the presence of fill material in this location.
BTEXN compounds were reported at concentrations above their respective laboratory reporting
limits in the groundwater samples collected from each of the three borings. Benzene and
ethylbenzene concentrations exceeded their established Maximum Contaminant Levels (MCLs)
of 0.005 milligrams per liter (mg/L) and 0.07 mg/L in each of the three samples analyzed. Benzene
concentrations were reported at concentrations of 1.05 mg/L in B-1, 0.817 mg/L in B-2, and
0.411 mg/L in B-3.
BTEX compounds were reported at concentrations above their respective laboratory reporting
limits in each of the subsurface soil-vapor samples submitted from borings B-1 through B-3.
Benzene concentrations were reported at concentrations of 878,000 micrograms per meter cubed
(pg/m3) in B-1, 126,000 pg/m3 in B-2, and 1,300 pg/m3 in B-3.
2.2.2 Subsurface Investigation November 2017
A subsequent Subsurface Soil-Vapor Investigation was performed at the TLR between
November 22 and November 27, 2017 (Kleinfelder, 2018). This phase of investigation included
the installation of passive soil gas (PSG) samplers at 17 locations to assess soil gas
concentrations in the subsurface to identify possible contaminant "source areas". Contour maps
were prepared for total petroleum hydrocarbons (TPH), diesel-range petroleum hydrocarbons
(DRPH), gasoline-range petroleum hydrocarbons (GRPH), benzene, and undecane (see
combined data in Figure 2). The distribution of gasoline and diesel vapors are roughly similar, in
a northwest trend, with localized areas of relatively higher concentrations of benzene and
undecane.
20190420.001A / SLC18R78264 Page 3 of 9 May 16, 2018
© 2018 Kleinfelder www.kleinfelder.com
KLE/NFELDER
BrightPeopte R1gAt Sakrtion,.
3 SOIL AND GROUNDWATER INVESTIGATION
3.1 SOIL AND GROUNDWATER SAMPLE TARGET AREAS
Eleven borings will be advanced to collect soil and groundwater samples. The proposed boring
locations are shown on Figure 2. Three borings will be advanced east of the TLR facility,
upgradient from the known area of impacts; eight borings will be advanced in an approximate ring
north, west, and south of the area of impacts, near the suspected margins of a soil vapor plume
or further downgradient from these margins (based on utility and building constraints).
3.2 SOIL SAMPLE COLLECTION AND LABORATORY ANALYSIS
3.2.1 Pre-Investigation Activities
Prior to drilling activities, Blue Stakes of Utah will be contacted to locate and mark subsurface
utilities at the Site and the Tesoro Logistics (Logistics) group will also perform a utility locate.
Kleinfelder will prepare a Site-Specific Health and Safety Plan for the work, which will include
Earthprobe Environmental as the drilling company (a Tesoro approved and trained
subcontractor).
3.2.2 Soil Sample Collection Activities
Direct push drilling methods will be used to advance up to 11 borings in the area surrounding the
TLR (proposed boring/piezometer locations are shown on Figure 1). The driller will collect
samples in four-to-five-foot intervals in an acetate liner. We will follow the following procedure to
collect the soil samples:
• Put on new, disposable latex or nitrile gloves.
• Using a clean decontaminated trowel or other sample removal equipment; remove the
outer layer of soil from the edges of the liner.
• Delineate the soil to be collected into two parts, one for sample collection and one for
screening for organic vapors.
20190420.001A / SLC18R78264 Page 4 of 9 May 16, 2018
© 2018 Kleinfelder www.kleinfelder.com
KLE/NFELDER
liNght People lefghtSolutiont
• Transfer the soil from the liner into a pre-labeled four-ounce sampling container.
• Clean sample container threads, if necessary, and carefully replace caps.
• Immediately place collected sample containers into Ziploc bags, and place into an iced
sample cooler under chain-of-custody.
• Transfer the remaining section of soil into a new pre-labeled Ziploc bag for field screening.
The initial three borings will be advanced to a total depth of 15 feet bgs with soil samples being
retained continuously to the depth of groundwater and logged using the Unified Soil Classification
System (USCS). These three initial borings will be converted into temporary piezometers, to allow
for Kleinfelder to survey the relative top-of-casing elevations as well as collect a
depth-to-groundwater measurement from each of these three piezometers. Kleinfelder will then
calculate a site-specific groundwater gradient to verify that the remaining eight soil borings are
placed in the appropriate up/cross/down-groundwater gradient locations.
The remaining eight soil borings will be advanced to approximately 10 feet bgs with soil samples
from each boring being retained continuously to the depth of the groundwater and logged using
the USCS. Up to two soil samples from each boring will be submitted for laboratory analysis,
depending on the depth to groundwater and field screening indications of soil impacts, as
determined visually and/or with field instrumentation such as a photoionization detector (PID). If
contamination is not observed or detected in the soil samples collected from a borehole, a single
soil sample collected from above the capillary fringe will be submitted for laboratory analysis. The
soil samples collected will be labeled S-DP-1-# through S-DP-8-#. The sampling nomenclature
used for the soil samples collected consists of "S" to identify the sample matrix as soil, "DP"
indicates the soil was collected from the direct push rig, "1" through "8" indicates the direct push
boring number, and the "#" identifies the depth bgs that the sample was collected.
3.2.3 Soil Sample Laboratory Analysis
Soil samples selected for laboratory analysis will be submitted for analysis of volatile organic
compounds (VOCs) by EPA Method 8260 and for polynuclear aromatic hydrocarbons (PAHs) by
EPA Method 8310.
20190420.001A / SLC18R78264 Page 5 of 9 May 16, 2018
@ 2018 Kleinfelder www.kleinfelder.com
( KLE/NFELDER
BrightPeople Right Sokrtions
3.3 GROUNDWATER SAMPLE COLLECTION AND LABORATORY ANALYSIS
One groundwater sample will be collected from each boring location. The groundwater sample
will be collected using a peristaltic pump, through Teflon8-lined Tygon tubing that is inserted in
the direct push drilling rod. During purging, Kleinfelder will monitor water quality parameters and
once turbidity, pH, and temperature have stabilized (three consecutive readings within 10%) the
groundwater will be pumped directly into the laboratory-supplied sampling containers. Following
collection of the groundwater samples, the borings will be backfilled with bentonite pellets and the
surface will be patched with an asphalt patch in the paved areas.
The sampling nomenclature used for the groundwater samples collected will be
W-DP-1 through W-DP-8 where "W" identifies the sample matrix as groundwater, "DP" indicates
the groundwater sample was collected from the direct push rig, and the "1" through "8" indicates
which boring the groundwater sample was collected from.
3.3.1 Groundwater Sample Laboratory Analysis
Each of the 11 groundwater samples will be analyzed for VOCs by EPA Method 8260 and for
PAHs by EPA Method 8310.
3.4 QUALITY ASSURANCE/QUALITY CONTROL
For Quality Control purposes, one duplicate soil and one duplicate groundwater sample will be
collected and analyzed by EPA Methods 8260 and 8310. Additionally, one trip blank will be
analyzed for VOCs by EPA Method 8260. Disposable sampling equipment will be used for each
sample collected, therefore, an equipment blank will not be collected.
3.5 INVESTIGATIVE DERIVED WASTE
Disposable personal protective equipment (PPE) (i.e. gloves, etc.) and disposable sampling
equipment (plastic trowels, tubing, etc.) generated during the sampling event will be disposed of
at a permitted municipal solid waste disposal facility. Drill cuttings that cannot be returned to the
boring and water derived from the purging and sampling procedures will be stored in 55-gallon
labeled drums and stored onsite pending the results of the sample analysis.
20190420.001A / SLC18R78264 Page 6 of 9 May 16, 2018
© 2018 Kleinfelder www.kleinfelder.com
KLE/NFELDER
Bright People Right Solutkros.
All drums will be labeled, closed tightly, and stored out of the way. Drums will be secured with
one-time use numbered seals. Drums will be characterized within 45 days, and disposed of within
90 days, if hazardous. All drums will be labeled with the following information:
• Accumulation Start Date
• Contents
• Volume
• Site name
• Client Name
• Contact phone number 801.261.3336
• The phrase "Contents on 45-day hold pending analysis, and 90-day hold pending
disposal"
The soil in the drums will be sampled for F&D Volatiles and D-List metals for disposal
characterization. The analytical data for the groundwater samples will be used to assess if the
drummed water can be appropriately be disposed of at the wastewater treatment plant or if
off-site disposal is required.
20190420.001A / SLC18R78264 Page 7 of 9 May 16, 2018
@ 2018 Kleinfelder www.kleinfelder.com
ie""••\.-
KLEINFELDER adght People Right Solueorm
4 REPORT
The results of this investigation will be reported to the DWMRC, and will include:
• A summary of the results of the prior Phase II Investigations;
• A vicinity map and site plan showing the approximate boring locations;
• Soil logs of the borings;
• Laboratory analytical results;
• Discussion of general Site conditions;
• Discussion of general subsurface conditions as encountered in our field exploration,
including depth to groundwater;
• Discussion of extent of soil and groundwater impacts; and
• Screening level risk assessment using US EPA RSLs or other applicable standards.
20190420.001A / SLC18R78264 Page 8 of 9 May 16, 2018 © 2018 Kleinfelder www.kleinfelder.com
KLE/NFELDER Slight People ht S°""'
5 REFERENCES
Kleinfelder, 2017, Limited Phase II Investigation Report, Truck Loading Rack, November 9, 2017
(20181945/SLC17R68117_R1).
Kleinfelder, 2018, Report of Limited Investigation Activities, Tesoro Truck Loading Rack — East
Fence Line Area, January 10, 2018 (20181945/SL018R71533).
20190420.001A / SLC18R78264 Page 9 of 9 May 16, 2018
© 2018 Kleinfelder www.kleinfelder.com
Fi
g
u
r
e
s

Oil/Water
Separator
Wastewater I
Holding Tank
(1)
Truck Scale
-2 cci 0,
o • a
To Refinery Wastewater
Treatment
Storage/
Building
MCC
/////////
//////////////
//////////
///////
e• A,
/
,,v,
Q10:1 --- ///\/
/// //// //// //// //// ////,ID AT)
13- //// ///// /// //r , ////////// //// /// ; ;Empty Out of, /// • /Service Tanks ,,, „
900 North
lir / A , / fr
• • / / • / / / / / / / / 7'
I / /1
Office r- •
0.!
u-)
O
ao ro
Building
Removed
Truck
Offloading
Station
T
T T T
Truck Loading Rack
110
• / Removed' / ///// ,//..////////////////
///// //////////// //// /// ///
O O
////////// ///////////
•

////4///////////////.. • /// /////////,•////. ////////////////////,' ///////porm/////////, ',///// 7.I-',,////////// /// // // // // // /
BOO North
IL
Image Source: c 2008 160' Google 0 40' 80'
Earth Pro Ver. 4.3.7284.3916 APPROXIMATE SCALE IN FEET
Figure 1
Truck Loading Rack
Facility Layout
475 West 900 North
Salt Lake City, Utah
ERM CliC/5
LEGEND
Approximate Site Boundary
Drains (to refinery
wastewater treatment system)
Storm Water Flow
Direction
O Liquid Storage Tank
Unpaved Areas
Facility Access
Points
undecane benzene °Gasoline outline Diesel outline
PROJECT NO. 20190420.001A Proposed Boring Locations
Overlain on soil vapor plume data
DRAWN BY: R. ALVAREZ
TESORO TRUCK LOADING RACK —
EAST FENCE LINE AREA
SALT LAKE CITY, UTAH
h:
UA
GIS Pr
o
je
c
ts
\S
L
C\T
e
s
o
r
o
\E
F
F
i
a
3.
mx
d
DRAWN: 01/2018
FIGURE
2 KLEINFELDER
Bright People. Right Solutions.
www.kleinfelder.com
CHECKED BY: D. RICKERS
FILE NAME:
EF_Fig3.mxd
• Approximate
location of former ru.OWS
0 10 20 30 40 50
PSG-16
Proposed Piezometer
locations
PSG-1 Passive Soil-Vapor
Sample Location
LayerCredits:BriAliEV etivlapcontributors,
The information ice/tided on this graphic representation has been cornpiled from a variety of sources and is subject to change without notice. Kleinfelder makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the (lee of stich information. This document is not intended oruae as a land survey product
not is it designed or intended as a construction design document. The use or mouse of the information contained on this graphic representation is at the sole risk of the party using or musing the information.
Ambient Surface-Vapor
Sample Location
4- Boring Location
one active
underground line ,
/*proximate
Location of new
OWS
LEGEND