HomeMy WebLinkAboutFINAL Howards Fall 2014 60 Day SVE Event Report
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
December 22, 2014
John Whiting
Central Valley Regional Water Quality Control Board
1685 "E" Street, Suite 100
Fresno, CA 93706-2007
Re: Fall 2014 SVE Event Operations Report, Howard’s Mini Market, 3300 Planz Road,
Bakersfield, Kern County. RB Case 5T15000917
Dear Mr. Whiting:
On behalf of Jamieson Hill Company we are submitting a summary of the 60 Day Soil Vapor Extraction
(SVE) operation event for the site referenced above as required by the RWQCB letter dated 25 August
2014. The goal of this SVE event was to reduce the mass of gasoline in the shallow subsurface soils
ultimately resulting in site closure.
The soil vapor extraction was conducted from September 23, 2014 to November 25, 2014 using a mobile
350 standard cubic feet per minute (scfm) thermal/catalytic oxidation unit (350 TCAT) operated by VEIR
Corporation. The 350 TCAT operated for a total of 1,452 hours while connected the horizontal well zones.
The maximum hydrocarbon daily extraction rate during this period was 168.74 lbs/day measured on
September 23, 2014, and declined to 25.28 lbs/day based on the influent gas analysis from the sample
collected on November 25, 2014. A total of 4,749.38 pounds of hydrocarbons were extracted during the
63 days of operation.
The decline observed in the influent hydrocarbon concentration, based on laboratory data, and the
derived extraction rates are shown in Graph 1: Influent TPH Concentration and Graph 2 respectively. As
noted above, the last influent sample indicated an extraction rate of 25.28 lbs/day, down from 168.74
lbs/day at the beginning of the SVE event.
In situ readings from the PID meter did not show a smooth decline in influent hydrocarbon concentrations.
Two large peaks of influent concentrations were observed, the first on October 28, 2014 and the second
from November 11 to November 28, 2014.
The extraction rate, as calculated from PID, displayed the increases and varied within a range of 40
lbs/day to 14 lbs/day. While neither the calculated extraction rate, nor the concentration showed a smooth
decline, both decreased overall from the first sampling time.
The only remaining closure criteria to be met for this site is Direct Contact of the impacted soil from 0 – 10
feet bgs with a utility worker. The soil gas measurements indicate that the closure criteria may be met for
ethlybenzene and naphthalene at both 5 and 10 feet bgs, and for benzene at 5 feet bgs. The
concentration of benzene in the soil gas at 10 feet bgs indicates that the closure criteria may not be met.
We recommend that soil vapor extraction be continued using the horizontal vapor extraction wells only.
Howard’s Mini Market
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5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
If you have any questions or comments please contact Jane Ellis-McNaboe at (661) 377-0073 X 11.
Thank you,
M. Jane Ellis-McNaboe, PG
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TABLE OF CONTENTS
1.0 INTRODUCTION ................................................................................................... 1
1.1 Responsible Party Contact Information ....................................................................................... 1
1.1 Site History ...................................................................................................................................... 1
1.2 Site Geology and Plume Distribution ............................................................................................ 6
2.0 SITE DESCRIPTION ............................................................................................. 7
3.0 TOPOGRAPHY, GEOLOGY AND HYDROGEOLOGY ........................................ 7
3.1 Topography ...................................................................................................................................... 7
3.2 Geology ............................................................................................................................................ 7
3.3 Hydrogeology .................................................................................................................................. 7
4.0 SVE SUMMARY .................................................................................................. 12
4.1 Soil Vapor Extraction .................................................................................................................... 12
4.2 Influent Concentrations and Hydrocarbon Removal Rates ...................................................... 12
4.3 Estimate of Hydrocarbons Remaining in the Soil...................................................................... 14
5.0 SOIL GAS SAMPLING ....................................................................................... 15
5.1 Quality Control Sample ................................................................................................................ 16
5.2 Record Keeping ............................................................................................................................. 16
5.3 Laboratory Analysis ...................................................................................................................... 16
5.4 Soil Gas Analytical Summary ...................................................................................................... 16
6.0 SUMMARY .......................................................................................................... 20
7.0 CLOSURE CRITERIA ......................................................................................... 20
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GRAPHS
Graph 1: Influent TPH Concentration ......................................................................................................... 13
Graph 2: Rate of TPH Removal per Day .................................................................................................... 14
Graph 3: Concentration of Analytes in S-1 at 5' bgs ................................................................................... 18
Graph 4: Concentration of Analytes in S-1 at 10' bgs ................................................................................. 19
FIGURES
Figure 1: Area Map ....................................................................................................................................... 2
Figure 2: Plot Plan ......................................................................................................................................... 3
Figure 3: W-E Cross Section......................................................................................................................... 9
Figure 4: NW - SE Cross Section ............................................................................................................... 10
Figure 5: Groundwater Map, November 2012 ............................................................................................ 11
TABLES
Table 1 - Concentration and Amount of TPH Extracted as Calculated from the on-site PID readings
Table 2 - Concentration and Amount of TPH Extracted as Calculated from Laboratory Analysis of Influent
Samples
Table 3 – Summary of Influent Vapor Laboratory Sample Analytical Results
Table 4 – Soil Gas Analytical Summary
ATTACHMENTS
ATTACHMENT A Regulatory Correspondence
ATTACHMENT B Field Logs, Soil Vapor Extraction
ATTACHMENT C Field Logs, Soil Gas Sampling
ATTACHMENT D Laboratory Analytical Reports (on disk)
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1.0 INTRODUCTION
EnviroTech Consultants, Inc. (EnviroTech) has prepared this Soil Vapor Extraction (SVE) Operation
Report on behalf of Jamieson Hill Company (Jaco) for Howard's Mini Mart, Jaco facility #7776, 3300
Planz Road, Bakersfield (Site). The report describes the Fall 2014 60 days of SVE operation, and one soil
vapor sampling event. Following the completion of the Fall 2014 SVE event, a soil vapor sampling event
took place on December 08, 2014.
The goal of the third 60-day SVE event was to remove hydrocarbons in the shallow soil to meet the last
remaining closure criteria at the site, direct contact of a utility worker with hydrocarbon impacted soil. To
meet this goal the SVE event was conducted by extracting from the horizontal extraction wells only.
1.1 Responsible Party Contact Information
The responsible party for the Site is Jamieson Hill Company; the company contact person is Mr. Lee
Jamieson, 3101 State Rd., Bakersfield, California; telephone (661) 393-7000, FAX (855) 635-2323. The
consultant contact is EnviroTech Consultants, Inc. (EnviroTech), Jane Ellis-McNaboe, 5400 Rosedale
Highway, Bakersfield, CA 93308, telephone (661) 377-0073, FAX (661) 330-0074.
1.1 Site History
Three 12,000-gallon gasoline underground storage tanks (USTs), and four dispensers on two pump
islands are located at the Site (Figure 1 - Area Map and Figure 2 - Plot Plan). The single walled UST's
were installed in 1976, and were cathode-protected and fiberglass lined in 1998; product piping at the Site
is composed of single walled steel and is also cathode-protected. From 1983 until May of 2009 the
service station sold gasoline only, diesel sales began in May 2009. The service station did not have a
history of leaks prior to 2006.
A leak in a product delivery line was discovered after investigating an alarm in the Site's leak detection
system on September 19, 2006. The product delivery line was immediately turned off. The quantity of
product released is unknown. During piping repairs on October 10, 2006 soil samples were collected by
RAM Environmental Engineering, Inc. (RAM) from below the leak site with a hand auger, at 2-feet and 40-
inches below ground surface (bgs). Soils were removed for sampling and to repair the piping only; no
excavation was attempted.
The soil sample analytical results from the October 2006 samples indicated that the soil below the piping
was impacted with TPH-g and BTEX; no fuel oxygenates were present above the laboratory detection
limit. The concentration of chemicals of concern (COC's) increased with depth. Soils collected from
beneath the piping were silty sands.
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5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
JACO OIL COMPANY
December 2014 Figure 1: Area Map
5400 Rosedale Highway
Bakersfield, CA 93308 SVE Report
HOWARDS MINI MART
3300 PLANZ ROAD,
BAKERSFEILD, CA
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Figure 2: Plot Plan
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On October 16, 2006, the Bakersfield Fire Department (BFD) issued an 'Unauthorized Release' letter to
Jamieson Hill Company (Jaco) for the release of fuel from piping at the Site. In response to the
Unauthorized Release letter site investigations were conducted as follows:
On May 2, 2007, five borings (B-1 through B-5) were developed at the site with a Geoprobe
during the Preliminary Site Investigation, as shown on Figure 2, to a maximum depth of 45 feet
bgs. A vadose zone plume containing TPH as gasoline, benzene, toluene, ethyl-benzene,
xylenes (BTEX), and fuel oxygenates including MTBE was found. No groundwater was
encountered and the vertical and horizontal limits of the plume were not defined.
In October 2008 two borings were drilled with a hollow-stem auger (B-6 and B-7). Boring B-7 was
drilled to 190 feet bgs, groundwater was encountered at 181 feet bgs. An attempt to build a
monitoring well was not successful. The deepest detection of MTBE in the soil was at 150 feet
bgs.
In April 2009 six dispensers were removed and replaced with four new dispensers. The
dispensers are installed with containment pans. Soil samples were collected at two and six feet
below grade from beneath each of the old dispensers. Analytical results indicated that all the soil
samples collected below all of the former dispensers contained hydrocarbons.
In October 2009 three additional borings (B-8 through B-10) were developed with a hollow stem
auger to define the lateral limits of the vadose zone plume. MTBE and xylene were detected in a
soil sample from boring B-8 at 175 feet bgs which was the total depth of the boring. Boring B-9
was drilled 175 feet to the southwest of the piping leak, hydrocarbons were encountered from 65 -
90 feet bgs. The horizontal and vertical limits of the soil plume were not completely defined.
In October 2009 two dual-completion vapor extraction wells were installed. VE-1 A/B and VE-2
A/B are both dual completion wells with slotted intervals from 5 to 53 feet bgs (zone A) and from
65 to 80 feet bgs (zone B).
In June 2010 a groundwater monitoring well MW-1 was installed at the site. Groundwater was
measured in the newly installed monitor well at 187.41 feet bgs, and no hydrocarbons were
detected. From October 15 – 20, 2010, a vapor extraction pilot test was conducted at the site
using the two vapor extraction wells and monitoring well MW-1. The total equivalent amount of
hydrocarbons recovered from the 5-day pilot test was 3,941.92 pounds (based on laboratory
data) equivalent to 630.96 gallons, and 2,624.44 pounds (based on the Horiba field organic vapor
analyzer data) equivalent to 420.02 gallons.
On October 14, 2010, three soil vapor probes were installed at the site for a limited screening
level evaluation. Soil vapor samples were collected on October 28, 2010. Analytical results
indicated that the soil gas concentrations in the area of the former leak were high, and that the
concentrations attenuated to below the California Human Health Screening Levels (January
2005), and Environmental Screening Levels (November 2007) in the soil adjacent to the building
to a depth of 15 feet below ground surface.
Monitoring well MW-1 was purged and sampled for the second time on September 20, 2010; the
depth to groundwater was 191.78 feet below ground surface. The groundwater elevation had
dropped by 4.37 feet from the first monitoring event on June 15, 2010. Groundwater laboratory
analytical results indicated the presence of TPH as gasoline, ethyl benzene, toluene and xylenes
in the groundwater below the Site. The concentrations of ethyl benzene, toluene and xylene
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exceeded the California MCLs and the concentration of TPH as gasoline exceeded the USEPA
toxicity concentration goal.
Monitoring well MW-1 was purged and sampled for the third time on December 16, 2010; the
depth to groundwater was 190.19 feet below ground surface. The groundwater elevation had
then risen by 1.59 feet from the second quarter monitoring event on September 20, 2010.
Groundwater laboratory analytical results indicated the presence of MTBE at a concentration of
1.5 ug/L, no other hydrocarbons were detected. The concentration of MTBE did not exceed the
State of California primary or secondary Maximum Concentration Limit for the third quarterly
sampling event.
Monitoring well MW-1 was purged and sampled for the fourth time on March 15, 2011. The depth
to groundwater was 187.78 feet below ground surface. The groundwater elevation had risen by
3.01 feet since the third monitoring event on December 16, 2010. Groundwater laboratory
analytical results were Non-Detect for the presence of TPH as diesel, TPH as gasoline, benzene,
ethyl benzene, toluene and xylenes, and methyl-t-butyl ether in the groundwater below the site.
On March 17, 2011, a Revised Supplemental Site Investigation Work Plan was submitted to the
Central Valley Regional Water Quality Control Board proposing the installation of three additional
groundwater monitoring wells to further assess potential impact of groundwater beneath the site.
In their April 7, 2011 correspondence, the RWQCB approved the installation of three additional
groundwater monitor wells and indicated that the vertical extent of gasoline constituents
encountered in all borings should be determined by laboratory analysis of two consecutive soil
samples lacking field evidence of gasoline impact.
Between May 9, 2011 and May 13, 2011, three additional monitoring wells (MW-2, MW-3 and
MW-4) were installed at the site. Soil sampling was conducted in conformance with the approved
Revised Supplemental Site Investigation Work Plan dated March 17, 2011. Groundwater samples
were collected from each of the three new wells on May 20, 2011 along with samples from MW-1.
Soil and groundwater analytical data compiled from these field activities were conveyed in the
Monitoring Well Installation Report dated July 5, 2011. This report was rescinded due to an error
on the groundwater flow direction map and re-submitted in September, 2011 with corrections.
On June 12, 2011, August 4, 2011 and November 8, 2011, soil gas samples were collected in
compliance with the request of RWQCB staff as included in their comments of March 15, 2011.
Separate quarterly monitoring reports were prepared to convey results of soil gas monitoring in
compliance with the RWQCB staff requirements. On May 20, 2011, all soil boring, soil vapor
probe, soil vapor extraction well, and groundwater monitoring well locations were surveyed by
Landmark Surveying and Engineering.
Quarterly ground water sampling events involving all four monitoring wells were conducted on
May 20, 2011, August 22, 2011, and November 14, 2011.
On October 29, 2012 soil gas samples were collected by Oilfield Environmental and Compliance,
Inc. (OEC) and were analyzed by OEC, a State-certified laboratory, for Total Petroleum
Hydrocarbons as gasoline, Volatile Organic Compounds, and fuel Oxygenates by EPA Method
TO-15. A soil vapor monitoring report was submitted to the RWQCB on November 20, 2012.
An annual ground water sampling event involving all four monitoring wells was conducted on
November 19, 2012.
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On February 11, 2013, a 60-day Vapor Extraction began at the site, using both VE-1 A/B and VE-
2 A/B, resulted in removal of 15,942.83 pounds of gasoline. The daily TPH extraction volumes
were above the goal of 20 lb/day at the end of two months of operation. A report detailing the
SVE event was submitted to the RWQCB in July 2013.
On August 6, 2013 the RWQCB issued a letter requesting 60 days of additional SVE at the site, a
shallow soil sampling work plan, and a sensitive receptor survey. The work was requested
because the site did not meet the direct contact exposure criteria for case closure. The shallow
soil sampling work plan was submitted to the RWQCB on September 26, 2013; the work plan
included a plan to install horizontal vapor extraction galleries at the site before implementing the
additional 60 day SVE event. The shallow soil sampling work plan was submitted on September
26, 2013 and the sensitive receptor survey was submitted on November 1, 2013.
On October 1, 2013, soil gas samples were collected by OEC, and were analyzed by OEC for
Total Petroleum Hydrocarbons as gasoline, Volatile Organic Compounds, and fuel Oxygenates
by EPA Method TO-15. A soil vapor monitoring report was submitted to the RWQCB on
November 15, 2013.
On November 21, 2013 RWQCB issued a letter authorizing the installation of two horizontal vapor
extraction wells and an installation report upon the completion of those galleries.
In January 2014, two horizontal vapor extraction wells were installed at 4 feet bgs. VE-4H,
connected to VE-2, was completed on January 16; VE-3H, connected to VE-1, was completed on
January 29, 2014. The Horizontal SVE System Installation Report was submitted January 31,
2014.
From February 17 to May 8, 2014, the second 60 day Vapor Extraction Event began at the site,
pulling from VE-1 A/B, VE-2 A/B, and horizontal vapor extraction wells VE-3H and VE-4H,
resulting in removal of 8,234.21 pounds of hydrocarbons. At the end of the 60 day event the daily
TPH extraction volumes were above the goal of 20 lb/day. On June 25, 2014, soil gas samples
were collected by OEC from Soil Vapor Probe S-1, and analyzed by OEC for Total Petroleum
Hydrocarbons as gasoline, Volatile Organic Compounds, and fuel Oxygenates by EPA Method
TO-15. A report detailing the SVE event was and the soil sampling analytical results submitted to
the RWQCB on July 30, 2014. A total of 8,235 pounds of hydrocarbons were extracted during
the event. The Soil Vapor Probe results indicated the concentrations of hydrocarbons at 5 and 10
feet bgs had increased slightly.
The RWQCB letter dated 25 August 2014 authorized a third 60-day SVE and soil vapor
monitoring event with the goal of reducing the shallow soil hydrocarbon concentrations and
closing the site. The current report details the Fall 2014 SVE and vapor probe sampling events.
1.2 Site Geology and Plume Distribution
The soil analytical results from the previous site investigations and the monitoring well installations are
summarized in Table 1 of the September, 2011 “Revised Monitoring Well Installation Report”. Cross
sections and maps were constructed and a site conceptual model developed and presented by RAM
(2009) (see Figures 3 and 4).
The hydrocarbon plume has separated into three distinct plumes. Overlapping plumes of TPH as
gasoline, BTEX and fuel oxygenates extend vertically from the surface leak area to approximately 90 feet
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bgs and laterally at least to 175 feet. A third portion of the vadose zone plume containing the fuel
oxygenate MTBE, and minor toluene and xylene concentrations extends vertically from the piping leak to
at least 175 bgs (boring B-8) and laterally to at least 175 feet (boring B-9). The soil hydrocarbon plume
underlies the entire Site and projected portions of the adjacent properties.
2.0 SITE DESCRIPTION
The Site is located in a mixed use area of residential and commercial buildings. The Site consists of the
gasoline distribution system, and a mini mart. The mini mart is surrounded by asphalt paving. To the
west of the mini mart, on the same property, is a vacant unpaved area. The mini mart is serviced by a
septic system located on the west side of the building.
To the north and west of the Site are single family homes; the Site is separated from the homes to the
north by a wooden fence and from the homes to the west by Chumley Street. To the south of the Site,
across Planz Road, is a limited-commercial area including a gasoline service station, and to the
southwest is a planned unit development. To the east across Wible Road is Highway 99; to the southeast
is another commercial area (see Figure 1 - Area Map).
3.0 TOPOGRAPHY, GEOLOGY AND HYDROGEOLOGY
3.1 Topography
The Site is at an elevation of approximately 375-feet above sea level. The topography slopes slightly to
the southwest (see Figure 2 – Plot Plan). On May 20, 2011, all soil boring, soil vapor probe, soil vapor
extraction well, and groundwater monitoring well locations were surveyed by Landmark Surveying and
Engineering.
3.2 Geology
The Site is located in the San Joaquin Valley, which is the southern portion of the Great Valley
geomorphic province. The Great Valley is a large alluvial plain approximately 50-miles wide and 400-
miles long; it is a trough in which sediments have been deposited almost continuously since the Jurassic
(about 160 million years ago). Granitic and metamorphic rocks outcrop along most of the eastern and
southeastern flanks of the Great Valley, while marine rocks of pre Tertiary age outcrop along most of the
western flank. The post-Eocene-aged continental rocks and deposits in the valley trough contain most of
the fresh groundwater, and are underlain by or contain saline water at depth in most places. They range
in thickness from zero along the flanks of the Great Valley to more than 25,000 feet in the extreme
southern part, where the base of the fresh water lies at a maximum depth of about 4,700 feet.
Groundwater within the southern San Joaquin Valley is derived from rivers flowing from the Sierra
Nevada Mountains to the east. The closest river to the Site is the Kern River located approximately 3.5
miles to the northwest.
3.3 Hydrogeology
There are no surface waters in the immediate Site area. The regional unconfined groundwater at the Site
was encountered in October 2008 in Boring B-7 at approximately 181 feet bgs; and was measured in
monitoring well MW-1 on June 15, 2010 at 187.41 feet bgs. The most recent groundwater elevation
measurements were taken on November 19, 2012; groundwater was measured in monitoring well MW-1
at approximately 187’ above sea level (189 feet bgs). The groundwater flow direction was towards the
northwest below most of the Site (Figure 5) with a gradient of 0.0016 feet/foot.
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A survey of Leaky Underground Fuel Tank (LUFT) sites in the area on the California State Water
Resources web site "Geotracker," reveals one site (Carwash of America), underwent remediation with
groundwater monitoring wells located approximately 1.75-miles to the northwest, at 1701 Stine Road
(Local Agency Case # 280013c). That Agency Case was closed in January, 2011. Depth to groundwater
was measured in May 2009 in the monitoring wells at the Carwash of America at approximately 174 feet
bgs with a groundwater gradient of 0.003 feet/foot, and a flow direction to the east southeast. Another
LUFT site; Market Express (Global ID# 5TI5000898), located at 2500 Wible Road (0.46 miles north) is an
”Open” case where depth to water measurements in June, 2013 indicated ground water was
approximately 191 feet bgs with a flow direction to the south at a gradient of 0.01 feet-foot.
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Figure 3: W-E Cross Section
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Figure 4: NW - SE Cross Section
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Figure 5: Groundwater Map, November 2012
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4.0 SVE SUMMARY
A short term soil vapor extraction event was conducted at Howard’s Mini Mart for 63 days from
September 23, until November 25, 2014, as authorized in a letter from the RWQCB dated 25 August
2014. A summary of operations is listed below.
4.1 Soil Vapor Extraction
Soil vapor extraction was conducted from September 23, 2014 to November 25, 2014 using a mobile 350
standard cubic feet per minute (scfm) thermal/catalytic oxidation unit (350 TCAT) operated by VEIR
Corporation. The 350 TCAT had operated for 1451.8 hours on November 25, 2014, pulling only from the
two horizontal vapor extraction well zones in order to concentrate the extraction of hydrocarbons on the
shallow soil zones, as per the objective of the SVE event.
The maximum hydrocarbon extraction rate during this period was 168.74 lbs/day measured on
September 23, 2014, and declined to 25.28 lbs/day based on the influent gas analysis from the sample
collected on November 25, 2014. A total of 4,749.38 pounds of hydrocarbons were extracted during the
63 days of operation.
The SVE was not in operation during October 14 – 15 due to a depleted supply of propane.
Summary:
Hours of operation: 1,452
Hours of downtime: 60
Total pounds of gasoline (as TPHg) removed: 1,551.69 as measured using the PID,
Total pounds of gasoline removed: 4,749.38, as measured from influent lab analysis
4.2 Influent Concentrations and Hydrocarbon Removal Rates
Influent concentration data was collected using two methods, 1) in the field using a PID, and 2) by
collecting a sample in a Summa canister for laboratory analysis. Field PID readings were conducted once
per week and influent samples were collected in Summa canister for laboratory analysis three times
during the SVE event. The change in influent concentration for both methods is shown in Graph 1. Tables
summarizing the volume of total petroleum hydrocarbons (TPH) are included following the text of this
report. Table 1 summarizes the total volume of TPH extracted as calculated from the influent sample on-
site PID concentration readings; Table 2 summarizes the calculations of TPH extracted based on
hydrocarbon concentrations measured by the lab. Both are shown Graph 2.
As noted above, the last influent sample indicated an extraction rate of 25.28 lb/day, down from 168.74
lb/day at the beginning of the SVE event.
In situ readings from the PID meter did not show a smooth decline in influent hydrocarbon concentrations.
Two large spikes were observed on October 28 and from November 11 to November 28.
The extraction rate, as calculated from PID, displayed the same spikes and varied within a range of 40
lb/day to 14 lb/day. While neither the calculated extraction rate, nor the concentration showed a smooth
decline, both decreased overall from the first sampling time.
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Influent samples analyzed in the laboratory were also analyzed for Benzene, Toluene, Ethylbenzene,
m,p-xylenes, o-xylenes, and MTBE. The results of these analyses are summarized in Table 3.
Graph 1: Influent TPH Concentration
-
500.00
1,000.00
1,500.00
2,000.00
2,500.00
0
200
400
600
800
1000
1200
TP
H
f
r
o
m
L
a
b
(p
p
m
V
)
TP
H
f
r
o
m
P
I
D
(p
p
m
V
)
Date
Influent TPH Concentration versus time
PID
Lab (TPHg)
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Graph 2: Rate of TPH Removal per Day
4.3 Estimate of Hydrocarbons Remaining in the Soil
A calculated estimate of the amount of gasoline in the soil before SVE was made as shown below. The
calculation assumes a conical volume of sandy soil with a radius of 50 feet and a height of 80 feet (the
distance from the surface to the underlying silty layer) and a median concentration of TPH as gasoline of
2,650 mg/kg from the laboratory analytical results of soil samples collected in Borings B-1 and B-6.
Volume of soil:
1
3 𝜋𝑟2ℎ= Volume of a cone
1/3(π)(50ft)2(80ft) = 209,439.5 ft3 of soil with a concentration of 2,650 mg/kg of TPH as gasoline
(soil volume)(soil density) = soil weight (209,439.5 ft3 of soil)(165.09 lbs/ft3) = 34,575,785.6 lbs of soil or
15,683,312.5 kg of soil with a concentration of 2,650 mg/kg of TPHg = 41,648,105,428 mg of gasoline,
OR approximately 92,000 lbs (15,000 gallons) of gasoline in the soil before initiation of the SVE events.
Hydrocarbons have been removed by the four SVE events, with the amount of TPHg removed as follows:
The Pilot SVE Test from October 15 – 20, 2010
o 2,624.44 lbs TPHg based on field measurements or
o 3,941.92 lbs TPHg based on laboratory data
0
20
40
60
80
100
120
140
160
180
0
5
10
15
20
25
30
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45
La
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(l
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Rate of TPH Removal/Day
PID
Lab (TPHg)
Howard’s Mini Market
60 Day SVE Event and Soil Vapor Probe Report
December, 2015 Page 15
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
The first 60-day SVE event from February 11 - May 7, 2013
o 15,942.83 lbs TPHg based on field measurements or
o 20,012.99 lbs TPHg based on laboratory data.
The second 60-day SVE event from February 17 - May 8, 2014
o 1,810.72 lbs TPHg based on field measurements or
o 8,235.21 lbs TPHg based on laboratory data
The third 60-day SVE event from September 23 - November 25, 2014
o 1,551.69 lbs TPHg based on field measurements or
o 4,749.38 lbs TPHg based on laboratory data
Using these figures, between 21,929.68 lbs and 36,939.5 lbs TPHg have been extracted from impacted
soil at the site. This is between 23.8% and 40.2% of the total estimated TPHg.
5.0 SOIL GAS SAMPLING
On December 8, 2014, following the completion of the SVE event on November 25, 2014, a soil gas
sample was obtained from the central vapor probe (S-1) to measure the current concentration of
hydrocarbons remaining in the shallow soil of the leak area. Soil vapor samples were collected from 5 and
10 feet bgs.
During the sampling process, the soil probe was purged using a 60 mL syringe to remove at least three
well volumes at a maximum purge rate of 200 mL/minute. The volume of each probe was calculated to
determine the required purge volume to remove before the soil gas sample was collected. The probe
volume was calculated by summing the volume of the probe screened interval (including filter pack void
space, accounting for porosity of sand pack), the volume of tubing from the probe tip to the ground
surface, and the volume of above ground tubing connecting the soil probe to the sample collection device.
After purging the soil probe, a soil gas sample was collected in a 1-liter bottle that had been cleaned and
evacuated in the laboratory. At each sample depth prior to sample collection, a shroud was placed over
the sampling location and filled with helium; a 'T' junction was attached to the sampling tube and a sample
of the soil gas was collected in a vacuum bottle. The gas collected inside the vacuum bottle was
measured on site to see if it contained helium; when no helium was detected, indicating that there were
no leaks in the sampling system, the soil vapor sample was collected.
For all the soil gas samples collected, a regulator connected to the vacuum canister was used to control
the flow rate, and a gage measured the pressure inside the canister while it filled with soil gas. The
pressure inside the canister rose from approximately 30 inches of mercury to 0-inches of Mercury when
the canister was filled. Purging and sampling times were recorded in field logs (see Attachment C for field
logs for this sampling event). No moisture was noted in any of the samples collected.
Howard’s Mini Market
60 Day SVE Event and Soil Vapor Probe Report
December, 2015 Page 16
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
The containers were labeled, stored in a cool place and transported by the sampling technician to Oilfield
Environmental and Compliance Laboratories under standard chain of custody procedures for analysis.
The results of the soil vapor sampling analysis are depicted in Table 4, which also includes the results of
prior soil vapor sampling events.
5.1 Quality Control Sample
A field duplicate sample was collected in a separate sample container from SVPS-1 at 5 feet. The sample
was collected concurrently with the primary sample by means of an additional ‘T’ junction and tubing.
5.2 Record Keeping
The following information was recorded on sampling forms and is included in this report in Attachment C
to facilitate understanding of the procedures utilized.
Sample identification information, including the location and depths at which the samples were
collected, date, and time.
Field personnel involved in sample collection.
Weather conditions (e.g., temperature and precipitation).
Sampling methods, devices, and equipment used.
Purge volumes calculated prior to sample collection.
Volume of soil gas extracted (i.e., volume of each sample).
Vacuum pressure of canisters before and after samples collected.
Shipment information, including chain of custody protocols and records.
5.3 Laboratory Analysis
The soil gas samples were analyzed by a certified laboratory for the following chemicals of concern:
Total petroleum hydrocarbons as gasoline by EPA TO-15 (TPH-g, carbon range C4 to C 12)
A full Volatile Organic Compound scan by EPA TO-15 including gasoline oxygenates
5.4 Soil Gas Analytical Summary
The results of all soil gas sample analyses are summarized in Table 4 (following the text). Soil probe S-1
is located approximately 20 feet east of the Mini Market building, within the center of the former leak area;
soil probes SVPS-2 and SVPS-3 (S-2 and S-3) are located adjacent to the market building (see Figure 2).
Only S-1 was sampled following the current SVE event.
The December 2014 S-1 vapor sampling results show that the concentration of ethanol at 5 feet bgs has
decreased from 13,000,000 ppb in July 2014 to 2,100,000 ppb on December 8, 2014. Toluene and
isopropyl alcohol were detected, the concentration of toluene remains below SF Bay RWQCB ESLs
(December 2013). TPHg was not detected, but the reporting limit of the laboratory analysis exceeds
residential ESLs.
Howard’s Mini Market
60 Day SVE Event and Soil Vapor Probe Report
December, 2015 Page 17
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
Results from sampling at 10 feet bgs show high concentrations of acetone, total xylenes, and increasing
concentrations of ethanol with depth from 5 to 10 feet bgs. Acetone concentrations increase, but remain
below ESLs. Total Xylenes exceed residential ESLs, but remain below industrial limits. Concentrations of
Toluene increase with depth, but remain below industrial ESLs. TPHg was not detected above the
laboratory reporting limit, and is not above industrial ESLs.
Concentrations of soil vapor hydrocarbons were dramatically reduced following the September –
November 2014 SVE event, as measured in the soil vapor probe. Ethanol, Benzene, Ethylbenzene,
Naphthalene, and MTBE have decreased in concentration at 5 feet bgs, but slightly increased at 10 feet,
as shown in Graph 3 and Graph 4 (S-1 at 5 feet and 10 feet bgs, respectively).
Howard’s Mini Market
60 Day SVE Event and Soil Vapor Probe Report
December, 2014 Page 18
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
The SVE events are demarcated on the graphs below; hydrocarbon concentrations are shown on a logarithmic scale.
Graph 3: Concentration of Analytes in S-1 at 5' bgs
1
10
100
1,000
10,000
100,000
1,000,000
10,000,000
100,000,000
1,000,000,000
TPH as Gasoline (ppb
(v))
Benzene (ppb (v))
Ethyl-benzene (ppb (v))
Naphthalene (ppb (v))
MTBE (ppb (v))
Ethanol (ppb (v))
S-1 @ 5' bgs
Fi
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t
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Howard’s Mini Market
60 Day SVE Event and Soil Vapor Probe Report
December, 2015 Page 19
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
Graph 4: Concentration of Analytes in S-1 at 10' bgs
1
10
100
1,000
10,000
100,000
1,000,000
10,000,000
100,000,000
1,000,000,000
TPH as Gasoline (ppb (v))
Benzene (ppb (v))
Ethyl-benzene (ppb (v))
Naphthalene (ppb (v))
MTBE (ppb (v))
Ethanol (ppb (v))
Fi
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Howard’s Mini Market
60 Day SVE Event and Soil Vapor Probe Report
December, 2014 Page 20
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
6.0 SUMMARY
The SVE event described in this report concentrated on removal of shallow soil hydrocarbons by
extracting from horizontal extraction wells only. The horizontal wells are installed at 5 feet bgs. The short
term SVE event successfully removed:
1,551.69 lbs of TPHg based on field measurements or
4,749.38 lbs of TPHg based on laboratory data
The total pounds of hydrocarbons removed from the soil at the Site by SVE is between 21,929.68 lbs
(based on PID field measurements) and 36,939.5 lbs TPHg (based on laboratory analysis of effluent
samples). This is between 23.8% and 40.2% of the total estimated mass of TPHg in the soil.
The daily extraction rate declined from 168.74 lbs/day measured on September 23, 2014, and to 25.28
lbs/day based on the influent gas analysis from the sample collected on November 25, 2014.
Results from the soil vapor probe indicate that the recent SVE event successfully lowered hydrocarbon
concentrations at 5 feet bgs; hydrocarbon concentrations were slightly elevated in the soil at 10 feet bgs
when compared to the last soil gas sampling event in July 2014.
The decline observed in the influent hydrocarbon concentration, based on laboratory data, and the
derived extraction rates are shown in Graph 1: Influent TPH Concentration and Graph 2 respectively. As
noted above, the last influent sample indicated an extraction rate of 25.28 lbs/day, down from 168.74
lbs/day at the beginning of the SVE event.
In situ readings from the PID meter did not show a smooth decline in influent hydrocarbon concentrations.
Two large peaks of influent concentrations were observed, the first on October 28, 2014 and the second
from November 11 to November 28, 2014.
The extraction rate, as calculated from PID, displayed the increases and varied within a range of 40
lbs/day to 14 lbs/day. While neither the calculated extraction rate, nor the concentration showed a smooth
decline, both decreased overall from the first sampling time.
7.0 CLOSURE CRITERIA
The only remaining closure criteria to be met for this site is Direct Contact of the impacted soil from 0 – 10
feet bgs with a utility worker. The closure criteria (ug/kg) are compared to the current soil gas (ppb, v/v) in
the table below. The soil gas measurements indicate that the closure criteria may be met for
ethlybenzene and naphthalene at both 5 and 10 feet bgs, and for benzene at 5 feet bgs. The
concentration of benzene in the soil gas at 10 feet bgs indicates that the closure criteria may not be met.
Table 1 - Closure Criteria, Utility Worker
Chemical
Utility Worker, soil
exposure 0 to 10 feet
bgs (ug/kg)
S-1 @ 5 feet bgs
12/8/2014
S-1 @ 10 feet bgs
12/8/2014
Benzene 14,000 <1,600 <36,000
Ethylbenzene 314,000 <1,600 <36,000
Naphthalene 219,000 <3,300 <72,000
Howard’s Mini Market
60 Day SVE Event and Soil Vapor Probe Report
December, 2015 Page 21
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
We recommend that soil vapor extraction be continued using the horizontal vapor extraction wells only.
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
Tables
Table 1 – Concentrations and amount of TPH extracted as calculated from the on-site PID readings
Table 2 – Concentration and amount of TPH extracted as calculated from Laboratory analysis of influent
samples
Table 3 – Summary of Influent Vapor Laboratory Sample Analytical Results
Table 4 – Soil Gas Analytical Results
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Page 2 of 2
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
ATTACHMENT A
Regulatory Correspondence
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
ATTACHMENT B
Field Logs, Soil Vapor Extraction
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
ATTACHMENT C
Field Logs, Soil Gas Sampling
SOIL GAS SAMPLING FORM
DATE 12/08/2014 SAMPLER OEC - Gavin
CLIENT Jaco Oil PROJECT
NUMBER
Howards Mini Market #7776
CONTAINER TYPE Vottle Vac CONTAINER ID OEC-108 3336 / OEC-117-30
SAMPLE ID (Location and depth) S-1 @ 5’
WEATHER CONDITIONS: Sunny
TEMPERATURE 57 F PRECIPITATION None
CALCULATED PURGE VOLUME (Three volumes) [ One Purge = 60 ml]
SAMPLING DEVICE: Bottle Vac
PURGE START TIME 1002 END TIME 1002
SAMPLE START TIME 1041 END TIME
CANISTER START
PRESSURE 27/28 END PRESSURE
VOLUME GAS EXTRACTED 1 Liter
FIELD MEASUREMENTS
TIME FLOW (ML/MIN) PRESSURE (IN H20)
OEC-108 / OEC-117 COMMENTS
1041 100 27/28
1042 “ 24/25
1043 “ 21/21
1044 “ 17/17
1045 “ 15/15
1046 “ 12/12
1047 “ 10/9
1048 “ 6/6
1049 “ 4/3
1050 “ 0/0
1051 “ 0/0
COMMENTS
No Helium
Reg# 3458 / 3942
DATE 12/08/2014 SAMPLER OEC - Gavin
CLIENT Jaco Oil PROJECT
NUMBER
Howards Mini Market #7776
CONTAINER TYPE Vottle Vac CONTAINER ID OEC-086 – 311G
SAMPLE ID (Location and depth) S-1 @ 10’
WEATHER CONDITIONS: Sunny
TEMPERATURE 60 F PRECIPITATION None
CALCULATED PURGE VOLUME (Three volumes) [ One Purge = 60 ml]
SAMPLING DEVICE: Bottle Vac
PURGE START TIME 1055 END TIME 1055
SAMPLE START TIME 1100 END TIME
CANISTER START
PRESSURE 27 END PRESSURE
VOLUME GAS EXTRACTED 1 Liter
FIELD MEASUREMENTS
TIME FLOW (ML/MIN) PRESSURE (IN H20)
OEC-108 / OEC-117 COMMENTS
1100 100 27
1101 “ 25
1102 “ 22
1103 “ 20
1104 “ 17
1105 “ 14
1106 “ 11
1107 “ 8
1108 “ 5
1109 “ 1
1109 “ 0
COMMENTS
No Helium
Reg# 2141
5400 Rosedale Highway Bakersfield, CA 93308 Tel 661.377.0073 Fax 661.377.0074
ATTACHMENT D
Laboratory Analytical Reports
Influent Samples and Soil Vapor Probe
Oilfield Environmental and Compliance, INC.
Dear Client:
Enclosed is an analytical report for the above referenced project. The samples included in this report
were received on 08-Dec-14 13:49 and analyzed in accordance with the attached chain-of-custody.
Unless otherwise noted, all analytical testing was accomplished in accordance with the guidelines
established in our Quality Assurance Manual, applicable standard operating procedures, and other
related documentation. The results in this analytical report are limited to the samples tested and any
reproduction thereof must be made in its entirety.
If you have any questions regarding this report, please do not hesitate to contact the undersigned.
Sincerely,
Work Order:1405506
16 December 2014
Project Manager
Marissa L. Censullo
Joshua Meyer
5400 Rosedale Hwy.
Bakersfield, CA 93308-6035
RE: Howards Mini-Mart Soil Gas Event December of 2014
Enviro Tech Consultants
307 Roemer Way, Suite 300, Santa Maria, CA 93454
TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
Sample IDLaboratory IDMatrixDate Sampled
ANALYTICAL REPORT FOR SAMPLES
Date Received
S-1@5'1405506-0107-Dec-14 10:4108-Dec-14 13:49Air
S-1@5' DUP1405506-0207-Dec-14 10:4108-Dec-14 13:49Air
S-1@10'1405506-0307-Dec-14 11:0008-Dec-14 13:49Air
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 2 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultAnalyte Limit BatchReportingPreparedAnalyzedMethodNotes DilutionUnits
S-1@5'
1405506-01 (Air)
Oilfield Environmental and Compliance
Volatile Organic Compounds by EPA Method TO-15
ND TO-15 mod.11-Dec-1411-Dec-14ppbvB4L03673250Acetone6500
ND """"""Benzene1600
ND """"""Benzyl chloride1600
ND """"""Bromodichloromethane1600
ND """"""Bromoform1600
ND """"""Bromomethane1600
ND """"""1,3-Butadiene1600
ND """"""Carbon disulfide1600
ND """"""Carbon tetrachloride1600
ND """"""Chlorobenzene1600
ND """"""Chloroethane1600
ND """"""Chloroform1600
ND """"""Chloromethane1600
ND """"""Cyclohexane1600
ND """"""Dibromochloromethane1600
ND """"""1,2-Dibromoethane (EDB)1600
ND """"""1,2-Dichlorobenzene1600
ND """"""1,3-Dichlorobenzene1600
ND """"""1,4-Dichlorobenzene1600
ND """"""Dichlorodifluoromethane1600
ND """"""1,1-Dichloroethane1600
ND """"""1,2-Dichloroethane1600
ND """"""1,1-Dichloroethene1600
ND """"""cis-1,2-Dichloroethene1600
ND """"""trans-1,2-Dichloroethene1600
ND """"""1,2-Dichloropropane1600
ND """"""cis-1,3-Dichloropropene1600
ND """"""trans-1,3-Dichloropropene1600
ND """"""1,2-Dichloro-1,1,2,2-tetrafluoroethane1600
ND """"""Diisopropyl Ether1600
ND """"""1,4-Dioxane1600
"2100000 B4L030108-Dec-1409-Dec-14"72222.22Ethanol140000
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 3 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultAnalyte Limit BatchReportingPreparedAnalyzedMethodNotes DilutionUnits
S-1@5'
1405506-01 (Air)
Oilfield Environmental and Compliance
Volatile Organic Compounds by EPA Method TO-15
ND TO-15 mod.11-Dec-1411-Dec-14ppbvB4L03673250Ethyl Acetate1600
ND """"""Ethylbenzene1600
ND """"""Ethyl t-Butyl Ether1600
ND """"""4-Ethyltoluene1600
ND """"""Heptane1600
ND """"""Hexachlorobutadiene1600
ND """"""Hexane1600
ND """"""2-Hexanone1600
"1900 """""Isopropyl alcohol 1600
ND """"""Methylene chloride1600
ND """"""Methyl Ethyl Ketone1600
ND """"""Methyl Isobutyl Ketone1600
ND """"""Methyl-t-butyl ether1600
ND """"""Naphthalene3300
ND """"""Propylene1600
ND """"""Styrene1600
ND """"""t-Amyl Methyl Ether1600
ND """"""t-Butyl alcohol1600
ND """"""1,1,2,2-Tetrachloroethane1600
ND """"""Tetrachloroethene (PCE)1600
ND """"""Tetrahydrofuran1600
"9100 """""Toluene 1600
ND """"""1,2,4-Trichlorobenzene1600
ND """"""1,1,1-Trichloroethane1600
ND """"""1,1,2-Trichloroethane1600
ND """"""Trichloroethene (TCE)1600
ND """"""Trichlorofluoromethane1600
ND """"""1,1,2-Trichlorotrifluoroethane1600
ND """"""1,2,4-Trimethylbenzene1600
ND """"""1,3,5-Trimethylbenzene1600
ND """"""Vinyl acetate1600
ND """"""Vinyl chloride1600
ND """"""Xylenes (total)1600
ND """"""TPH Gasoline (C4-C12)650000
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 4 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultAnalyte Limit BatchReportingPreparedAnalyzedMethodNotes DilutionUnits
S-1@5' DUP
1405506-02 (Air)
Oilfield Environmental and Compliance
Volatile Organic Compounds by EPA Method TO-15
ND TO-15 mod.11-Dec-1411-Dec-14ppbvB4L03673250Acetone6500
ND """"""Benzene1600
ND """"""Benzyl chloride1600
ND """"""Bromodichloromethane1600
ND """"""Bromoform1600
ND """"""Bromomethane1600
ND """"""1,3-Butadiene1600
ND """"""Carbon disulfide1600
ND """"""Carbon tetrachloride1600
ND """"""Chlorobenzene1600
ND """"""Chloroethane1600
ND """"""Chloroform1600
ND """"""Chloromethane1600
ND """"""Cyclohexane1600
ND """"""Dibromochloromethane1600
ND """"""1,2-Dibromoethane (EDB)1600
ND """"""1,2-Dichlorobenzene1600
ND """"""1,3-Dichlorobenzene1600
ND """"""1,4-Dichlorobenzene1600
ND """"""Dichlorodifluoromethane1600
ND """"""1,1-Dichloroethane1600
ND """"""1,2-Dichloroethane1600
ND """"""1,1-Dichloroethene1600
ND """"""cis-1,2-Dichloroethene1600
ND """"""trans-1,2-Dichloroethene1600
ND """"""1,2-Dichloropropane1600
ND """"""cis-1,3-Dichloropropene1600
ND """"""trans-1,3-Dichloropropene1600
ND """"""1,2-Dichloro-1,1,2,2-tetrafluoroethane1600
ND """"""Diisopropyl Ether1600
ND """"""1,4-Dioxane1600
"2000000 B4L030108-Dec-1409-Dec-14"72222.22Ethanol140000
ND "11-Dec-1411-Dec-14"B4L03673250Ethyl Acetate1600
ND """"""Ethylbenzene1600
ND """"""Ethyl t-Butyl Ether1600
ND """"""4-Ethyltoluene1600
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 5 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultAnalyte Limit BatchReportingPreparedAnalyzedMethodNotes DilutionUnits
S-1@5' DUP
1405506-02 (Air)
Oilfield Environmental and Compliance
Volatile Organic Compounds by EPA Method TO-15
ND TO-15 mod.11-Dec-1411-Dec-14ppbvB4L03673250Heptane1600
ND """"""Hexachlorobutadiene1600
ND """"""Hexane1600
ND """"""2-Hexanone1600
"2500 """""Isopropyl alcohol 1600
ND """"""Methylene chloride1600
ND """"""Methyl Ethyl Ketone1600
ND """"""Methyl Isobutyl Ketone1600
ND """"""Methyl-t-butyl ether1600
ND """"""Naphthalene3300
ND """"""Propylene1600
ND """"""Styrene1600
ND """"""t-Amyl Methyl Ether1600
ND """"""t-Butyl alcohol1600
ND """"""1,1,2,2-Tetrachloroethane1600
ND """"""Tetrachloroethene (PCE)1600
ND """"""Tetrahydrofuran1600
"12000 """""Toluene 1600
ND """"""1,2,4-Trichlorobenzene1600
ND """"""1,1,1-Trichloroethane1600
ND """"""1,1,2-Trichloroethane1600
ND """"""Trichloroethene (TCE)1600
ND """"""Trichlorofluoromethane1600
ND """"""1,1,2-Trichlorotrifluoroethane1600
ND """"""1,2,4-Trimethylbenzene1600
ND """"""1,3,5-Trimethylbenzene1600
ND """"""Vinyl acetate1600
ND """"""Vinyl chloride1600
ND """"""Xylenes (total)1600
ND """"""TPH Gasoline (C4-C12)650000
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 6 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultAnalyte Limit BatchReportingPreparedAnalyzedMethodNotes DilutionUnits
S-1@10'
1405506-03 (Air)
Oilfield Environmental and Compliance
Volatile Organic Compounds by EPA Method TO-15
TO-15 mod.280000 B4L030108-Dec-1409-Dec-14ppbv72222.22Acetone140000
ND """"""Benzene36000
ND """"""Benzyl chloride36000
ND """"""Bromodichloromethane36000
ND """"""Bromoform36000
ND """"""Bromomethane36000
ND """"""1,3-Butadiene36000
ND """"""Carbon disulfide36000
ND """"""Carbon tetrachloride36000
ND """"""Chlorobenzene36000
ND """"""Chloroethane36000
ND """"""Chloroform36000
ND """"""Chloromethane36000 CCHI
ND """"""Cyclohexane36000
ND """"""Dibromochloromethane36000
ND """"""1,2-Dibromoethane (EDB)36000
ND """"""1,2-Dichlorobenzene36000
ND """"""1,3-Dichlorobenzene36000
ND """"""1,4-Dichlorobenzene36000
ND """"""Dichlorodifluoromethane36000
ND """"""1,1-Dichloroethane36000
ND """"""1,2-Dichloroethane36000
ND """"""1,1-Dichloroethene36000
ND """"""cis-1,2-Dichloroethene36000
ND """"""trans-1,2-Dichloroethene36000
ND """"""1,2-Dichloropropane36000
ND """"""cis-1,3-Dichloropropene36000
ND """"""trans-1,3-Dichloropropene36000
ND """"""1,2-Dichloro-1,1,2,2-tetrafluoroethane36000
ND """"""Diisopropyl Ether36000
ND """"""1,4-Dioxane36000
"13000000 B4L043012-Dec-1412-Dec-14"325000Ethanol650000
ND "08-Dec-1409-Dec-14"B4L030172222.22Ethyl Acetate36000
ND """"""Ethylbenzene36000
ND """"""Ethyl t-Butyl Ether36000
ND """"""4-Ethyltoluene36000
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 7 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultAnalyte Limit BatchReportingPreparedAnalyzedMethodNotes DilutionUnits
S-1@10'
1405506-03 (Air)
Oilfield Environmental and Compliance
Volatile Organic Compounds by EPA Method TO-15
ND TO-15 mod.08-Dec-1409-Dec-14ppbvB4L030172222.22Heptane36000
ND """"""Hexachlorobutadiene36000
ND """"""Hexane36000
ND """"""2-Hexanone36000 CCHI
"130000 """""Isopropyl alcohol 36000
ND """"""Methylene chloride36000
ND """"""Methyl Ethyl Ketone36000
ND """"""Methyl Isobutyl Ketone36000
ND """"""Methyl-t-butyl ether36000
ND """"""Naphthalene72000
ND """"""Propylene36000
ND """"""Styrene36000
ND """"""t-Amyl Methyl Ether36000
ND """"""t-Butyl alcohol36000
ND """"""1,1,2,2-Tetrachloroethane36000
ND """"""Tetrachloroethene (PCE)36000
ND """"""Tetrahydrofuran36000
"350000 """""Toluene 36000
ND """"""1,2,4-Trichlorobenzene36000
ND """"""1,1,1-Trichloroethane36000
ND """"""1,1,2-Trichloroethane36000
ND """"""Trichloroethene (TCE)36000
ND """"""Trichlorofluoromethane36000
ND """"""1,1,2-Trichlorotrifluoroethane36000
ND """"""1,2,4-Trimethylbenzene36000
ND """"""1,3,5-Trimethylbenzene36000
ND """"""Vinyl acetate36000
ND """"""Vinyl chloride36000
"98000 """""Xylenes (total)36000
ND """"""TPH Gasoline (C4-C12)14000000
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 8 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0301 - EPA TO-15 prep
Blank (B4L0301-BLK1)Prepared & Analyzed: 09-Dec-14
AcetoneppbvND2.0
Benzene"ND0.50
Benzyl chloride"ND0.50
Bromodichloromethane"ND0.50
Bromoform"ND0.50
Bromomethane"ND0.50
1,3-Butadiene"ND0.50
Carbon disulfide"ND0.50
Carbon tetrachloride"ND0.50
Chlorobenzene"ND0.50
Chloroethane"ND0.50
Chloroform"ND0.50
Chloromethane"ND0.50 CCHI
Cyclohexane"ND0.50
Dibromochloromethane"ND0.50
1,2-Dibromoethane (EDB)"ND0.50
1,2-Dichlorobenzene"ND0.50
1,3-Dichlorobenzene"ND0.50
1,4-Dichlorobenzene"ND0.50
Dichlorodifluoromethane"ND0.50
1,1-Dichloroethane"ND0.50
1,2-Dichloroethane"ND0.50
1,1-Dichloroethene"ND0.50
cis-1,2-Dichloroethene"ND0.50
trans-1,2-Dichloroethene"ND0.50
1,2-Dichloropropane"ND0.50
cis-1,3-Dichloropropene"ND0.50
trans-1,3-Dichloropropene"ND0.50
1,2-Dichloro-1,1,2,2-tetrafluoroethane"ND0.50
Diisopropyl Ether"ND0.50
1,4-Dioxane"ND0.50
Ethanol"ND2.0
Ethyl Acetate"ND0.50
Ethylbenzene"ND0.50
Ethyl t-Butyl Ether"ND0.50
4-Ethyltoluene"ND0.50
Heptane"ND0.50
Hexachlorobutadiene"ND0.50
Hexane"ND0.50
2-Hexanone"ND0.50 CCHI
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 9 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0301 - EPA TO-15 prep
Blank (B4L0301-BLK1)Prepared & Analyzed: 09-Dec-14
Isopropyl alcoholppbvND0.50
Methylene chloride"ND0.50
Methyl Ethyl Ketone"ND0.50
Methyl Isobutyl Ketone"ND0.50
Methyl-t-butyl ether"ND0.50
Naphthalene"ND1.0
Propylene"ND0.50
Styrene"ND0.50
t-Amyl Methyl Ether"ND0.50
t-Butyl alcohol"ND0.50
1,1,2,2-Tetrachloroethane"ND0.50
Tetrachloroethene (PCE)"ND0.50
Tetrahydrofuran"ND0.50
Toluene"ND0.50
1,2,4-Trichlorobenzene"ND0.50
1,1,1-Trichloroethane"ND0.50
1,1,2-Trichloroethane"ND0.50
Trichloroethene (TCE)"ND0.50
Trichlorofluoromethane"ND0.50
1,1,2-Trichlorotrifluoroethane"ND0.50
1,2,4-Trimethylbenzene"ND0.50
1,3,5-Trimethylbenzene"ND0.50
Vinyl acetate"ND0.50
Vinyl chloride"ND0.50
Xylenes (total)"ND0.50
TPH Gasoline (C4-C12)"ND200
LCS (B4L0301-BS1)Prepared & Analyzed: 09-Dec-14
Benzeneppbv10.50.5010.079-119105
Bromomethane"10.80.5010.068-133108
Carbon tetrachloride"10.80.5010.069-134108
Chlorobenzene"10.80.5010.062-119108
Chloroform"10.50.5010.060-128105
1,2-Dibromoethane (EDB)"11.20.5010.063-124112
1,3-Dichlorobenzene"9.950.5010.057-127100
1,4-Dichlorobenzene"10.20.5010.067-125102
Dichlorodifluoromethane"10.80.5010.053-129108
1,2-Dichloroethane"10.40.5010.052-136104
1,1-Dichloroethene"10.90.5010.077-120109
1,2-Dichloropropane"10.40.5010.078-121104
Diisopropyl Ether"11.00.5010.075-123110
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 10 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0301 - EPA TO-15 prep
LCS (B4L0301-BS1)Prepared & Analyzed: 09-Dec-14
Ethanolppbv11.62.010.072-133116
Ethylbenzene"11.00.5010.066-121110
Ethyl t-Butyl Ether"10.90.5010.070-132109
Methylene chloride"10.30.5010.057-144103
Methyl-t-butyl ether"10.80.5010.067-131108
Styrene"10.60.5010.070-128106
t-Amyl Methyl Ether"10.70.5010.084-123107
t-Butyl alcohol"10.90.5010.046-139109
Tetrachloroethene (PCE)"10.90.5010.054-130109
Toluene"10.90.5010.060-124109
1,1,1-Trichloroethane"10.50.5010.057-136105
Trichloroethene (TCE)"10.60.5010.082-124106
Trichlorofluoromethane"10.50.5010.046-159105
Vinyl chloride"10.90.5010.074-113109
Xylenes (total)"32.90.5030.065-119110
LCS (B4L0301-BS2)Prepared & Analyzed: 09-Dec-14
TPH Gasoline (C4-C12)ppbv57820050074-141116
LCS Dup (B4L0301-BSD1)Prepared & Analyzed: 09-Dec-14
Benzeneppbv10.30.5010.02579-1191032
Bromomethane"10.50.5010.02568-1331052
Carbon tetrachloride"10.60.5010.02569-1341061
Chlorobenzene"10.40.5010.02562-1191044
Chloroform"10.40.5010.02560-1281042
1,2-Dibromoethane (EDB)"10.70.5010.02563-1241074
1,3-Dichlorobenzene"9.450.5010.02557-127955
1,4-Dichlorobenzene"9.530.5010.02567-125957
Dichlorodifluoromethane"10.30.5010.02553-1291035
1,2-Dichloroethane"10.40.5010.02552-1361040.4
1,1-Dichloroethene"10.80.5010.02577-1201081
1,2-Dichloropropane"10.20.5010.02578-1211022
Diisopropyl Ether"10.80.5010.02575-1231082
Ethanol"10.92.010.02572-1331096
Ethylbenzene"10.50.5010.02566-1211055
Ethyl t-Butyl Ether"10.80.5010.02570-1321080.8
Methylene chloride"10.50.5010.02557-1441051
Methyl-t-butyl ether"10.80.5010.02567-1311080.6
Styrene"10.20.5010.02570-1281024
t-Amyl Methyl Ether"10.50.5010.02584-1231052
t-Butyl alcohol"10.70.5010.02546-1391072
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 11 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0301 - EPA TO-15 prep
LCS Dup (B4L0301-BSD1)Prepared & Analyzed: 09-Dec-14
Tetrachloroethene (PCE)ppbv10.50.5010.02554-1301054
Toluene"10.30.5010.02560-1241035
1,1,1-Trichloroethane"10.40.5010.02557-1361042
Trichloroethene (TCE)"10.40.5010.02582-1241042
Trichlorofluoromethane"10.40.5010.02546-1591041
Vinyl chloride"10.60.5010.02574-1131063
Xylenes (total)"31.40.5030.02565-1191055
LCS Dup (B4L0301-BSD2)Prepared & Analyzed: 09-Dec-14
TPH Gasoline (C4-C12)ppbv6452005002574-14112911
Duplicate (B4L0301-DUP1)Prepared & Analyzed: 09-Dec-14Source: 1405483-02RE1
Acetoneppbv33737316256
Benzene"ND9.2ND25
Benzyl chloride"ND9.2ND25
Bromodichloromethane"ND9.2ND25
Bromoform"ND9.2ND25
Bromomethane"ND9.2ND25
1,3-Butadiene"ND9.2ND25
Carbon disulfide"ND9.2ND25
Carbon tetrachloride"ND9.2ND25
Chlorobenzene"ND9.2ND25
Chloroethane"ND9.2ND25
Chloroform"ND9.2ND25
Chloromethane"ND9.2ND25CCHI
Cyclohexane"ND9.2ND25
Dibromochloromethane"ND9.2ND25
1,2-Dibromoethane (EDB)"ND9.2ND25
1,2-Dichlorobenzene"ND9.2ND25
1,3-Dichlorobenzene"ND9.2ND25
1,4-Dichlorobenzene"ND9.2ND25
Dichlorodifluoromethane"ND9.2ND25
1,1-Dichloroethane"ND9.2ND25
1,2-Dichloroethane"ND9.2ND25
1,1-Dichloroethene"ND9.2ND25
cis-1,2-Dichloroethene"ND9.2ND25
trans-1,2-Dichloroethene"ND9.2ND25
1,2-Dichloropropane"ND9.2ND25
cis-1,3-Dichloropropene"ND9.2ND25
trans-1,3-Dichloropropene"ND9.2ND25
1,2-Dichloro-1,1,2,2-tetrafluoroethane"ND9.2ND25
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 12 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0301 - EPA TO-15 prep
Duplicate (B4L0301-DUP1)Prepared & Analyzed: 09-Dec-14Source: 1405483-02RE1
Diisopropyl EtherppbvND9.2ND25
1,4-Dioxane"ND9.2ND25
Ethanol"53.43754.5252
Ethyl Acetate"ND9.2ND25
Ethylbenzene"ND9.2ND25
Ethyl t-Butyl Ether"ND9.2ND25
4-Ethyltoluene"ND9.2ND25
Heptane"ND9.2ND25
Hexachlorobutadiene"ND9.2ND25
Hexane"ND9.2ND25
2-Hexanone"ND9.2ND25CCHI
Isopropyl alcohol"4009.2381255
Methylene chloride"57.89.254.4256
Methyl Ethyl Ketone"ND9.2ND25
Methyl Isobutyl Ketone"ND9.2ND25
Methyl-t-butyl ether"ND9.2ND25
Naphthalene"ND18ND25
Propylene"ND9.2ND25
Styrene"ND9.2ND25
t-Amyl Methyl Ether"ND9.2ND25
t-Butyl alcohol"ND9.2ND25
1,1,2,2-Tetrachloroethane"ND9.2ND25
Tetrachloroethene (PCE)"ND9.2ND25
Tetrahydrofuran"ND9.2ND25
Toluene"18.79.217.8255
1,2,4-Trichlorobenzene"ND9.2ND25
1,1,1-Trichloroethane"ND9.2ND25
1,1,2-Trichloroethane"ND9.2ND25
Trichloroethene (TCE)"ND9.2ND25
Trichlorofluoromethane"ND9.2ND25
1,1,2-Trichlorotrifluoroethane"ND9.2ND25
1,2,4-Trimethylbenzene"ND9.2ND25
1,3,5-Trimethylbenzene"ND9.2ND25
Vinyl acetate"ND9.2ND25
Vinyl chloride"ND9.2ND25
Xylenes (total)"ND9.2ND25
TPH Gasoline (C4-C12)"ND3700ND25
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 13 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0301 - EPA TO-15 prep
Matrix Spike (B4L0301-MS1)Prepared & Analyzed: 09-Dec-14Source: 1405483-02RE1
Benzeneppbv1989.2183ND79-119108
Bromomethane"2019.2183ND68-133110
Carbon tetrachloride"2009.2183ND69-134109
Chlorobenzene"2089.2183ND62-119114
Chloroform"2059.2183ND60-128112
1,2-Dibromoethane (EDB)"2189.2183ND63-124119
1,3-Dichlorobenzene"1859.2183ND57-127101
1,4-Dichlorobenzene"1979.2183ND67-125108
Dichlorodifluoromethane"1979.2183ND53-129107
1,2-Dichloroethane"2049.2183ND52-136111
1,1-Dichloroethene"2089.2183ND77-120114
1,2-Dichloropropane"2009.2183ND78-121109
Diisopropyl Ether"2099.2183ND75-123114
Ethanol"2773718354.572-133122
Ethylbenzene"2129.2183ND66-121116
Ethyl t-Butyl Ether"2129.2183ND70-132116
Methylene chloride"2639.218354.457-144114
Methyl-t-butyl ether"2059.2183ND67-131112
Styrene"2019.2183ND70-128110
t-Amyl Methyl Ether"2029.2183ND84-123110
t-Butyl alcohol"2159.2183ND46-139118
Tetrachloroethene (PCE)"2099.2183ND54-130114
Toluene"2329.218317.860-124117
1,1,1-Trichloroethane"2019.2183ND57-136110
Trichloroethene (TCE)"2009.2183ND82-124109
Trichlorofluoromethane"1999.2183ND46-159109
Vinyl chloride"2049.2183ND74-113111
Xylenes (total)"6429.2549ND65-119117
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 14 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0367 - EPA TO-15 prep
Blank (B4L0367-BLK1)Prepared & Analyzed: 11-Dec-14
AcetoneppbvND2.0
Benzene"ND0.50
Benzyl chloride"ND0.50
Bromodichloromethane"ND0.50
Bromoform"ND0.50
Bromomethane"ND0.50
1,3-Butadiene"ND0.50
Carbon disulfide"ND0.50
Carbon tetrachloride"ND0.50
Chlorobenzene"ND0.50
Chloroethane"ND0.50
Chloroform"ND0.50
Chloromethane"ND0.50
Cyclohexane"ND0.50
Dibromochloromethane"ND0.50
1,2-Dibromoethane (EDB)"ND0.50
1,2-Dichlorobenzene"ND0.50
1,3-Dichlorobenzene"ND0.50
1,4-Dichlorobenzene"ND0.50
Dichlorodifluoromethane"ND0.50
1,1-Dichloroethane"ND0.50
1,2-Dichloroethane"ND0.50
1,1-Dichloroethene"ND0.50
cis-1,2-Dichloroethene"ND0.50
trans-1,2-Dichloroethene"ND0.50
1,2-Dichloropropane"ND0.50
cis-1,3-Dichloropropene"ND0.50
trans-1,3-Dichloropropene"ND0.50
1,2-Dichloro-1,1,2,2-tetrafluoroethane"ND0.50
Diisopropyl Ether"ND0.50
1,4-Dioxane"ND0.50
Ethanol"ND2.0
Ethyl Acetate"ND0.50
Ethylbenzene"ND0.50
Ethyl t-Butyl Ether"ND0.50
4-Ethyltoluene"ND0.50
Heptane"ND0.50
Hexachlorobutadiene"ND0.50
Hexane"ND0.50
2-Hexanone"ND0.50
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 15 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0367 - EPA TO-15 prep
Blank (B4L0367-BLK1)Prepared & Analyzed: 11-Dec-14
Isopropyl alcoholppbvND0.50
Methylene chloride"ND0.50
Methyl Ethyl Ketone"ND0.50
Methyl Isobutyl Ketone"ND0.50
Methyl-t-butyl ether"ND0.50
Naphthalene"ND1.0
Propylene"ND0.50
Styrene"ND0.50
t-Amyl Methyl Ether"ND0.50
t-Butyl alcohol"ND0.50
1,1,2,2-Tetrachloroethane"ND0.50
Tetrachloroethene (PCE)"ND0.50
Tetrahydrofuran"ND0.50
Toluene"ND0.50
1,2,4-Trichlorobenzene"ND0.50
1,1,1-Trichloroethane"ND0.50
1,1,2-Trichloroethane"ND0.50
Trichloroethene (TCE)"ND0.50
Trichlorofluoromethane"ND0.50
1,1,2-Trichlorotrifluoroethane"ND0.50
1,2,4-Trimethylbenzene"ND0.50
1,3,5-Trimethylbenzene"ND0.50
Vinyl acetate"ND0.50
Vinyl chloride"ND0.50
Xylenes (total)"ND0.50
TPH Gasoline (C4-C12)"ND200
LCS (B4L0367-BS1)Prepared & Analyzed: 11-Dec-14
Benzeneppbv10.80.5010.079-119108
Bromomethane"11.00.5010.068-133110
Carbon tetrachloride"11.10.5010.069-134111
Chlorobenzene"11.10.5010.062-119111
Chloroform"10.80.5010.060-128108
1,2-Dibromoethane (EDB)"11.60.5010.063-124116
1,3-Dichlorobenzene"10.10.5010.057-127101
1,4-Dichlorobenzene"10.30.5010.067-125103
Dichlorodifluoromethane"10.60.5010.053-129106
1,2-Dichloroethane"10.70.5010.052-136107
1,1-Dichloroethene"11.30.5010.077-120113
1,2-Dichloropropane"10.40.5010.078-121104
Diisopropyl Ether"11.40.5010.075-123114
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 16 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0367 - EPA TO-15 prep
LCS (B4L0367-BS1)Prepared & Analyzed: 11-Dec-14
Ethanolppbv12.12.010.072-133121
Ethylbenzene"11.10.5010.066-121111
Ethyl t-Butyl Ether"11.40.5010.070-132114
Methylene chloride"10.80.5010.057-144108
Methyl-t-butyl ether"11.30.5010.067-131113
Styrene"10.70.5010.070-128107
t-Amyl Methyl Ether"11.00.5010.084-123110
t-Butyl alcohol"11.20.5010.046-139112
Tetrachloroethene (PCE)"11.30.5010.054-130113
Toluene"11.30.5010.060-124113
1,1,1-Trichloroethane"10.80.5010.057-136108
Trichloroethene (TCE)"11.00.5010.082-124110
Trichlorofluoromethane"10.90.5010.046-159109
Vinyl chloride"11.20.5010.074-113112
Xylenes (total)"34.20.5030.065-119114
LCS (B4L0367-BS2)Prepared & Analyzed: 11-Dec-14
TPH Gasoline (C4-C12)ppbv58820050074-141118
LCS Dup (B4L0367-BSD1)Prepared & Analyzed: 11-Dec-14
Benzeneppbv10.60.5010.02579-1191061
Bromomethane"10.90.5010.02568-1331090.7
Carbon tetrachloride"11.00.5010.02569-1341101
Chlorobenzene"11.10.5010.02562-1191110.2
Chloroform"10.70.5010.02560-1281070.7
1,2-Dibromoethane (EDB)"11.70.5010.02563-1241171
1,3-Dichlorobenzene"10.10.5010.02557-1271010.4
1,4-Dichlorobenzene"10.50.5010.02567-1251052
Dichlorodifluoromethane"10.20.5010.02553-1291023
1,2-Dichloroethane"10.50.5010.02552-1361052
1,1-Dichloroethene"11.10.5010.02577-1201112
1,2-Dichloropropane"10.40.5010.02578-1211040.9
Diisopropyl Ether"11.20.5010.02575-1231121
Ethanol"11.62.010.02572-1331164
Ethylbenzene"11.30.5010.02566-1211132
Ethyl t-Butyl Ether"11.20.5010.02570-1321121
Methylene chloride"10.70.5010.02557-1441071
Methyl-t-butyl ether"11.20.5010.02567-1311120.8
Styrene"10.90.5010.02570-1281092
t-Amyl Methyl Ether"10.90.5010.02584-1231090.5
t-Butyl alcohol"10.70.5010.02546-1391074
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 17 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0367 - EPA TO-15 prep
LCS Dup (B4L0367-BSD1)Prepared & Analyzed: 11-Dec-14
Tetrachloroethene (PCE)ppbv11.40.5010.02554-1301140.4
Toluene"11.30.5010.02560-1241130.2
1,1,1-Trichloroethane"10.70.5010.02557-1361070.9
Trichloroethene (TCE)"10.80.5010.02582-1241082
Trichlorofluoromethane"10.70.5010.02546-1591072
Vinyl chloride"11.00.5010.02574-1131102
Xylenes (total)"34.00.5030.02565-1191130.7
LCS Dup (B4L0367-BSD2)Prepared & Analyzed: 11-Dec-14
TPH Gasoline (C4-C12)ppbv5842005002574-1411170.6
Duplicate (B4L0367-DUP1)Prepared & Analyzed: 11-Dec-14Source: 1405555-02
Acetoneppbv19.83321.3257
Benzene"1.838.31.83250
Benzyl chloride"ND8.3ND25
Bromodichloromethane"ND8.3ND25
Bromoform"ND8.3ND25
Bromomethane"ND8.3ND25
1,3-Butadiene"ND8.3ND25
Carbon disulfide"ND8.3ND25
Carbon tetrachloride"ND8.3ND25
Chlorobenzene"ND8.3ND25
Chloroethane"ND8.3ND25
Chloroform"ND8.3ND25
Chloromethane"ND8.3ND25
Cyclohexane"ND8.3ND25
Dibromochloromethane"ND8.3ND25
1,2-Dibromoethane (EDB)"ND8.3ND25
1,2-Dichlorobenzene"ND8.3ND25
1,3-Dichlorobenzene"ND8.3ND25
1,4-Dichlorobenzene"ND8.3ND25
Dichlorodifluoromethane"ND8.3ND25
1,1-Dichloroethane"ND8.3ND25
1,2-Dichloroethane"ND8.3ND25
1,1-Dichloroethene"ND8.3ND25
cis-1,2-Dichloroethene"ND8.3ND25
trans-1,2-Dichloroethene"ND8.3ND25
1,2-Dichloropropane"ND8.3ND25
cis-1,3-Dichloropropene"ND8.3ND25
trans-1,3-Dichloropropene"ND8.3ND25
1,2-Dichloro-1,1,2,2-tetrafluoroethane"ND8.3ND25
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 18 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0367 - EPA TO-15 prep
Duplicate (B4L0367-DUP1)Prepared & Analyzed: 11-Dec-14Source: 1405555-02
Diisopropyl EtherppbvND8.3ND25
1,4-Dioxane"ND8.3ND25
Ethanol"22.23323.2254
Ethyl Acetate"ND8.3ND25
Ethylbenzene"ND8.3ND25
Ethyl t-Butyl Ether"ND8.3ND25
4-Ethyltoluene"ND8.3ND25
Heptane"ND8.3ND25
Hexachlorobutadiene"ND8.3ND25
Hexane"ND8.3ND25
2-Hexanone"ND8.3ND25
Isopropyl alcohol"ND8.3ND25
Methylene chloride"ND8.3ND25
Methyl Ethyl Ketone"ND8.3ND25
Methyl Isobutyl Ketone"ND8.3ND25
Methyl-t-butyl ether"ND8.3ND25
Naphthalene"ND17ND25
Propylene"ND8.3ND25
Styrene"ND8.3ND25
t-Amyl Methyl Ether"ND8.3ND25
t-Butyl alcohol"ND8.3ND25
1,1,2,2-Tetrachloroethane"ND8.3ND25
Tetrachloroethene (PCE)"ND8.3ND25
Tetrahydrofuran"ND8.3ND25
Toluene"3.508.34.332521
1,2,4-Trichlorobenzene"ND8.3ND25
1,1,1-Trichloroethane"ND8.3ND25
1,1,2-Trichloroethane"ND8.3ND25
Trichloroethene (TCE)"ND8.3ND25
Trichlorofluoromethane"ND8.3ND25
1,1,2-Trichlorotrifluoroethane"ND8.3ND25
1,2,4-Trimethylbenzene"ND8.3ND25
1,3,5-Trimethylbenzene"ND8.3ND25
Vinyl acetate"ND8.3ND25
Vinyl chloride"ND8.3ND25
Xylenes (total)"ND8.3ND25
TPH Gasoline (C4-C12)"ND3300ND25
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 19 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0367 - EPA TO-15 prep
Matrix Spike (B4L0367-MS1)Prepared: 11-Dec-14 Analyzed: 12-Dec-14Source: 1405555-02
Benzeneppbv1838.31671.8379-119109
Bromomethane"1908.3167ND68-133114
Carbon tetrachloride"1868.3167ND69-134112
Chlorobenzene"2018.3167NDQL-0362-119121
Chloroform"1868.3167ND60-128112
1,2-Dibromoethane (EDB)"2148.3167NDQL-0363-124128
1,3-Dichlorobenzene"1828.3167ND57-127109
1,4-Dichlorobenzene"1838.3167ND67-125110
Dichlorodifluoromethane"1798.3167ND53-129107
1,2-Dichloroethane"1878.3167ND52-136112
1,1-Dichloroethene"1928.3167ND77-120115
1,2-Dichloropropane"1798.3167ND78-121107
Diisopropyl Ether"1948.3167ND75-123116
Ethanol"1623316723.272-13383
Ethylbenzene"2008.3167ND66-121120
Ethyl t-Butyl Ether"1958.3167ND70-132117
Methylene chloride"1868.3167ND57-144111
Methyl-t-butyl ether"1938.3167ND67-131116
Styrene"1918.3167ND70-128114
t-Amyl Methyl Ether"1868.3167ND84-123111
t-Butyl alcohol"1868.3167ND46-139111
Tetrachloroethene (PCE)"2068.3167ND54-130123
Toluene"2138.31674.33QL-0360-124125
1,1,1-Trichloroethane"1898.3167ND57-136114
Trichloroethene (TCE)"1798.3167ND82-124107
Trichlorofluoromethane"1838.3167ND46-159110
Vinyl chloride"1928.3167NDQL-0374-113115
Xylenes (total)"6178.3500NDQL-0365-119123
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 20 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0430 - EPA TO-15 prep
Blank (B4L0430-BLK1)Prepared & Analyzed: 12-Dec-14
AcetoneppbvND2.0
Benzene"ND0.50
Benzyl chloride"ND0.50
Bromodichloromethane"ND0.50
Bromoform"ND0.50
Bromomethane"ND0.50
1,3-Butadiene"ND0.50
Carbon disulfide"ND0.50
Carbon tetrachloride"ND0.50
Chlorobenzene"ND0.50
Chloroethane"ND0.50
Chloroform"ND0.50
Chloromethane"ND0.50
Cyclohexane"ND0.50
Dibromochloromethane"ND0.50
1,2-Dibromoethane (EDB)"ND0.50
1,2-Dichlorobenzene"ND0.50
1,3-Dichlorobenzene"ND0.50
1,4-Dichlorobenzene"ND0.50
Dichlorodifluoromethane"ND0.50
1,1-Dichloroethane"ND0.50
1,2-Dichloroethane"ND0.50
1,1-Dichloroethene"ND0.50
cis-1,2-Dichloroethene"ND0.50
trans-1,2-Dichloroethene"ND0.50
1,2-Dichloropropane"ND0.50
cis-1,3-Dichloropropene"ND0.50
trans-1,3-Dichloropropene"ND0.50
1,2-Dichloro-1,1,2,2-tetrafluoroethane"ND0.50
Diisopropyl Ether"ND0.50
1,4-Dioxane"ND0.50
Ethanol"ND2.0
Ethyl Acetate"ND0.50
Ethylbenzene"ND0.50
Ethyl t-Butyl Ether"ND0.50
4-Ethyltoluene"ND0.50
Heptane"ND0.50
Hexachlorobutadiene"ND0.50
Hexane"ND0.50
2-Hexanone"ND0.50
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 21 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0430 - EPA TO-15 prep
Blank (B4L0430-BLK1)Prepared & Analyzed: 12-Dec-14
Isopropyl alcoholppbvND0.50
Methylene chloride"ND0.50
Methyl Ethyl Ketone"ND0.50
Methyl Isobutyl Ketone"ND0.50
Methyl-t-butyl ether"ND0.50
Naphthalene"ND1.0
Propylene"ND0.50
Styrene"ND0.50
t-Amyl Methyl Ether"ND0.50
t-Butyl alcohol"ND0.50
1,1,2,2-Tetrachloroethane"ND0.50
Tetrachloroethene (PCE)"ND0.50
Tetrahydrofuran"ND0.50
Toluene"ND0.50
1,2,4-Trichlorobenzene"ND0.50
1,1,1-Trichloroethane"ND0.50
1,1,2-Trichloroethane"ND0.50
Trichloroethene (TCE)"ND0.50
Trichlorofluoromethane"ND0.50
1,1,2-Trichlorotrifluoroethane"ND0.50
1,2,4-Trimethylbenzene"ND0.50
1,3,5-Trimethylbenzene"ND0.50
Vinyl acetate"ND0.50
Vinyl chloride"ND0.50
Xylenes (total)"ND0.50
TPH Gasoline (C4-C12)"ND200
LCS (B4L0430-BS1)Prepared & Analyzed: 12-Dec-14
Benzeneppbv10.80.5010.079-119108
Bromomethane"11.00.5010.068-133110
Carbon tetrachloride"11.00.5010.069-134110
Chlorobenzene"11.10.5010.062-119111
Chloroform"10.80.5010.060-128108
1,2-Dibromoethane (EDB)"11.70.5010.063-124117
1,3-Dichlorobenzene"10.60.5010.057-127106
1,4-Dichlorobenzene"10.40.5010.067-125104
Dichlorodifluoromethane"10.90.5010.053-129109
1,2-Dichloroethane"11.00.5010.052-136110
1,1-Dichloroethene"11.20.5010.077-120112
1,2-Dichloropropane"10.60.5010.078-121106
Diisopropyl Ether"11.50.5010.075-123115
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 22 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0430 - EPA TO-15 prep
LCS (B4L0430-BS1)Prepared & Analyzed: 12-Dec-14
Ethanolppbv12.32.010.072-133123
Ethylbenzene"11.20.5010.066-121112
Ethyl t-Butyl Ether"11.40.5010.070-132114
Methylene chloride"10.90.5010.057-144109
Methyl-t-butyl ether"11.50.5010.067-131115
Styrene"10.90.5010.070-128109
t-Amyl Methyl Ether"11.00.5010.084-123110
t-Butyl alcohol"11.30.5010.046-139113
Tetrachloroethene (PCE)"11.20.5010.054-130112
Toluene"11.20.5010.060-124112
1,1,1-Trichloroethane"10.80.5010.057-136108
Trichloroethene (TCE)"10.90.5010.082-124109
Trichlorofluoromethane"10.80.5010.046-159108
Vinyl chloride"11.30.5010.074-113113
Xylenes (total)"33.90.5030.065-119113
LCS (B4L0430-BS2)Prepared & Analyzed: 12-Dec-14
TPH Gasoline (C4-C12)ppbv59520050074-141119
LCS Dup (B4L0430-BSD1)Prepared & Analyzed: 12-Dec-14
Benzeneppbv10.80.5010.02579-1191080.2
Bromomethane"10.90.5010.02568-1331091
Carbon tetrachloride"11.10.5010.02569-1341110.2
Chlorobenzene"10.80.5010.02562-1191083
Chloroform"10.80.5010.02560-1281080.4
1,2-Dibromoethane (EDB)"11.10.5010.02563-1241114
1,3-Dichlorobenzene"10.10.5010.02557-1271014
1,4-Dichlorobenzene"10.10.5010.02567-1251013
Dichlorodifluoromethane"10.90.5010.02553-1291090.09
1,2-Dichloroethane"10.80.5010.02552-1361082
1,1-Dichloroethene"11.10.5010.02577-1201111
1,2-Dichloropropane"10.60.5010.02578-1211060.4
Diisopropyl Ether"11.50.5010.02575-1231150.3
Ethanol"11.62.010.02572-1331166
Ethylbenzene"10.90.5010.02566-1211093
Ethyl t-Butyl Ether"11.20.5010.02570-1321121
Methylene chloride"10.90.5010.02557-1441090.09
Methyl-t-butyl ether"11.30.5010.02567-1311132
Styrene"10.50.5010.02570-1281054
t-Amyl Methyl Ether"10.90.5010.02584-1231091
t-Butyl alcohol"11.10.5010.02546-1391112
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 23 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
ResultLimit
Reporting
UnitsLevel
Spike
Result
Source
%REC
%REC
LimitsRPD
RPD
LimitNotes Analyte
Volatile Organic Compounds by EPA Method TO-15 - Quality Control
Batch B4L0430 - EPA TO-15 prep
LCS Dup (B4L0430-BSD1)Prepared & Analyzed: 12-Dec-14
Tetrachloroethene (PCE)ppbv10.80.5010.02554-1301083
Toluene"10.80.5010.02560-1241084
1,1,1-Trichloroethane"10.90.5010.02557-1361090.4
Trichloroethene (TCE)"10.80.5010.02582-1241081
Trichlorofluoromethane"10.70.5010.02546-1591071
Vinyl chloride"11.00.5010.02574-1131102
Xylenes (total)"32.80.5030.02565-1191093
LCS Dup (B4L0430-BSD2)Prepared & Analyzed: 12-Dec-14
TPH Gasoline (C4-C12)ppbv5972005002574-1411190.3
Duplicate (B4L0430-DUP1)Prepared & Analyzed: 12-Dec-14Source: 1405506-03RE3
Ethanolppbv1230000065000012600000252
Matrix Spike (B4L0430-MS1)Prepared & Analyzed: 12-Dec-14Source: 1405506-03RE3
Ethanolppbv17100000650000325000012600000QL-0272-133140
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 24 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
Project:
Project Number:
Project Manager:
Reported:
Enviro Tech Consultants
5400 Rosedale Hwy.Howards Mini-Mart Soil Gas Event December of
Joshua Meyer
Howards Mini-Mart Soil Gas Event December of 2014
16-Dec-14 12:36Bakersfield CA, 93308-6035
Oilfield Environmental and Compliance, INC.
Notes and Definitions
QL-03The spike recovery is outside the in-house generated control limits but within the 70-130 percent recovery range.
QL-02The spike recovery is outside the control limits.
CCHIThe CCV for this analyte failed high. Analyte result is ND. Data is not impacted.
Sample results reported on a dry weight basis
Relative Percent DifferenceRPD
dry
Not ReportedNR
Analyte NOT DETECTED at or above the reporting limitND
Analyte DETECTEDDET
Oilfield Environmental and Compliance The results in this report apply to the samples analyzed in accordance with the chain of
custody document. This analytical report must be reproduced in its entirety.
Page 25 of 25
307 Roemer Way, Suite 300, Santa Maria, CA 93454 TEL: (805) 922-4772
FAX: (805) 925-3376www.oecusa.com
~-C~ArN~OF-CUSTODYu~e)Oilfield Environmental and Compliance t ~ .. 307 Roemer Way Suite 300, Santa Maria, CA 93454 Highway 33. McKittrick CA ....-.;;:: ~phone: (805) 922-4772 fax: (805) 925-3376 www.oecusa.com phone: (661) 762-9143 Page I of f
Company: EnviroTech Project Name/#: Pasadena! JP I"'Z. 3
Address: 5400 Rosedale Hwy Site: ~(~Trl<> "" ;",' -N\o-'l-+
City/State/ZIP: Bakersfield CA 93308 -G::,O'3 S' Analysis Requested . Speciallnsrtuctions:
Telephone: 661-377-0073 X 11 Fax: fobl-s77-oo1t/ E-mail: imcnaboe@envirotechteam.com
Report To: ~7Jbh\J Ct {\('\bJ.cv-Sampler: (,a V(Y"'I
,
Send report via: FAXOV PDFD ColtiLUFT EDF~ EDD0
IUrnarounu lime: "10Days-·O 5 Days0 72 hr-CJ 48hr-0 24 hr0 ASAP0 "" -
#of
,
OEC Sample ID DatelTime Sampled Matrix Client Sample ID 0 Cont. \-......"..""".............................,,.
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Received By: ~~./1/ Date: lZ/ttg/lI'( Time: I )Lff-~.-
!!!.!~.g.!!!~.~!£!k................_· _ ........................................................._..................___.__.............................. Date:........................ Time: "'''''~~''''''''''........ '''''' .." ...... _ ...._ ............ '''''' .... '''''''''''''...........,~~'''','''u"............ " ......
Received By: Date: Time:
AMPLE RECEIPT CLIENT: !;;/Ilv/£o /E&}/ OEC ID #: 17/05SO'-Temp: C0
Acceptable Range: oee to 6ee
COC RECEIVED • RECEIPT LOGIN
DATE/TIME: \L~R·· 14 @) 13~ DATEffIME: lC-~-(!.f~ ,flf-16 REFRIGERATOR(s): Vg, , • -,._,--. --"~'" .-~~-', ~ --.,}':.!~..;;r.~."i:i'i"~~~..'", c:'--;. ..
i SA~'lPLE TRA..~§PORT, RECEIPT, CONDITION & PRESERVATION: Yes ~No NfA (*) PROBLEM CHAm FOR,l\1 ~ Ij{fOEC Courier/Sampler COC document(s) received with samples ~ D* 0 Custody Seals (circle): Presenti~ IID Doliv,'Y(Oth", than aEC Couri",) Correct containers for analysis requested .~ 0* 0 Samples! Coolers
o Samples Received on lee Container(s) intact and in good condition ~ 0* 0 Intact! Broken*
.! .. 0 Sa.lllpies Received Outside Temp, Range* , Container label(s) consistent with COC 0 ,JS* 0 Method of Shipment & Tracking #(Ifapplicable):
o Samples Direct from field (Outside Temp) OEC preservative added (**note std lD) 0** .0 JS
; 0 After~Hours Outside Drop-off [Brought Inside] Proper preservation on sample label(s) __ 0 iO Pi (**) OEC Preservative ID :~:
(InitialsiDateiTime) : .. ...• VOA containers free ofheads pace 0 :,0* I2f Dissolved Metals Filtration: (DateilnitiPreserve JD) .
Tedlar Bags free of condensation U U* ~ ~~~.~~.'i' < .~ = ~:: :;: ,.~-
J-2.."'""':"';::~'" -""''''-'<! -, . --, -> .-----. 'w;"~~1.:::::J'"
t. o ._-{ ) ••• '. comAINERS, COC 'CHANGES ru~jOR OORRKCTIONS CHANGES AUTHORIZEDBY: , ~ .~ ,
~~ ~ .~ :;,,: ~".' oOECID < Ciient·ru ;'**if',blirnk!..refer.to enG. iCmItamer Description;,"" '.' . Preservative Res€b Matrix DateJTime . Comments / Remarks / . "."'J !L) \ ~
/pH Sampled *** . Condition Nates, Etc. ----! ~ -3 f1 J ~~n+f-'IL VtJr £.A I I~ I-I -~-. --
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RECEIPT LOGIN BY: ~ RECEIPT REVIEWED BY: 6/lIJ-Page _ 1of <:
----------
------
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ROBLEIVI CHAIN CLIENT: TE<;.tI OEe ID #: /0/0 &.)0 f:oE.NI'fICO
ISSUES RECORDED BY (DATEffIMEIiNlTIALS): J1.."7-\'1 ® l4' 7 c::::Jl;;(2
-
~~>;;;;C .
ISSUE(§): PLEASE PROViDE DETAiLS OF
o Sampies Received Outside Temp_ Range (see below)
o Incorrect containers for analysis requested
o OTHER: (if multiple, identifY ""ith numbers)
If
BELOW -Samples/Containers Affected, as necessary_
o NO C~C document(s) received with samples
~Container labe!( s) NOT consistent with COC
o Container(s) NOT intact or in g
o Custody Seals Broken
ood condition
--------
0
RESOLUTIONS: MINIMU~1 INFO: Issue#(ifnecessa..'y} -Description,--Contact T:Yl'e (Verbal; ~!11ail, etc,) Client Authorization Contact Date/Time/Initials
FINAL RESOLUTION OF ISSUES BY (DATEffIMEIINITIALS): ________________ page~of2
09109/08
Oilfield Environmental & Compliance, Inc. [~307 Roemer Way, Suite 300, Santa Maria, Co 93454
101 Adkisson Way, Taft,.Ca 93268
Phone: 805-922-4772 / 661-762-9143
AR@oecusa.com
~~ ~
Date: ILls/ )4
Employee Name: C~::~/-J ,'", Ac. I'S'I' '" ('1 C \...1
Client Name: f I\, MJfc "'\ -r::-G k 0
Project / Site Name: tJ oW CLf A. S ~t ltt t ma:t-i
Roundtrip Drive Time: 4hr<\ . Roundtrip Drive Mileage: eOCl '
Stop Field Time: (! A<)Start Field Time: o9'1~
Stop Field Mileage: /,ffStart Field Mileage: ff
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Consumables: 1.-&t;;)i/'4l S'1 fC:J! Il (j f"':;
3 6?J6}-~ VQCS IJ
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Decription / Comment:
Admin Use:
Name: Initials: Date:
Total Drive Time: Total Field Time:
Total Drive Mileage: Total Field Mileage:
TICKET NO. 2523
/
SOIL GAS SAMPUNG FORM
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SOil GAS SAMPLING FORM
SAMPLI NG DEVlC~~~~~--==~.t-,t,--e.._\J-ic",:::........:::-::(:-::-:==::-___.,..--.............-::--____'---
PUR.GESTARTTIIV~E 1----iE.£.s IEND TIME.' I lo~~S SAMPLE START TIME '( 0 c) i END TIME
. g~~~S;J:ESTART ' -"-·....!2-=.'-1-,--rl-E-N-D-P-R-ES--'S--U-'-R-E-,T\-----;------I
bOLUME GAS -EXTR:~.!§D=......:__ '__J.--____ -----==1_-,-_1_L_ite_f__
FIELD MEASUREMENTS -,
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TIME FLOW [Ml/MIN) PRESSURE (IN Hg) COMMENTS
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COMMENTS
Heliul Results tv-o J t< e. ~ .~ '-,~
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u~~Oilfield Environmental and Compliance CHAIN OF CUSTODY
'L307Roemer Way Suite 300, Santa Maria, CA 93454 Highway 33, McKittrick CA ---=-:# . ( .
VIphone: (80S) 922-4772 fax: (805) 925·3376 www.oecusa.com phone: (661) 762-9143 Page .I of ,
Company: EnviroTech Project Name/#: Pasadena! JP 1"2.3
Address: 5400 Rosedale Hwy Site: f.L" /..,.J{) <7"15 rJ\ ;y'\', -N\Q ~*
City/State/ZIP: Bakersfield CA 93308 -(,0"3 5 Analysis Requested
Telephone: 661-377-0073 X 11 Fax: fob l-s77 -007" E-mail: jmcnaboe@.envirotechteam.com
Report To: ~l>bhv tA. {\(\e)kv-Sampler: ('(}..V;~
Send report via: FAX011 PDF0 ColtlLUFT EDFb!fI EDD0
Turnaround Time: 10 Days0 5 Days0 72 hr0 48 hr-0 24hr0 ASAP0 ""-
#of •OEC Sample ID DatelTime Sampled Matrix Client Sample ID 0 Cont. .....-. ~
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Received By: ~~I 1/ Date: lZ/tfgjlt-y Time: I ~ Lf r
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Received By: Date: Time:
Special Insr1llelia!1$;
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Al\fPLE RECEIPT CLIENT: ~IIIVlR£J 7"E:GtI OEC ID #: I~O 5"SOb Temp: 0 C
Acceptable Range: OOC to 6"C
COC RECEIVED RECEIPT LOGIN
DATE/TIME: \1::'t -Jt.t@ L3't<1 DATEITIME: l7..:-~~6 REFRIGERATOR(S):V R, • ""'"
SAMPLE TRA...~SPORTj RECEIPTs CONDITION & PRESERVATION: Yes :No N/A (*) PROBLE~CHAIN FOJL~~
, j?fOEC Courier/Sampler CDC document(s) received with sa..'Uples ~ 0* 0 Custody Seals (circle): Present /~
o Delivery(Other than OEC Courier) Correct containers for analysis requested .~ D* 0 Samples i Coolers
o Samples Received on lee Container(s) intact and in good condition ~ 0 Intact! Broken*
o Sa..tUples Received Outside Temp; Range* . Container label(s) consistent with COC 0 ;l9* 0 Method ofShipment & Tracking #(lfapplicable):
o Samples Direct from field (Outside Temp) OEC preservative added (**note std ID) 0** 0 J&
: 0 After..Hours Outside Drop-offlBrought Inside] Proper preservation on sample label( s) 0 i,o !21 (**) DEC Preservative ID
(Initials/DatelTime ): .'. VOA containers free ofheads pace .0 :.0* I2f Dissolved Metals Filtration: (Datcilnit/Preserve ID)
Tedlar Bags free of condensation 0 0* 12! ~~'§:~:5~'" -. -"""" ,"""'" ;}~5~:fi:!!::.E::~~ ~ .. . --~. " { , ~CONTAINERS, COC 'CHANGES AND/OR GORRE.CTIONS CH:ANGES AUTHORIZEDBY: . ~< . ~ ,
..,GEcm ,(i'iient·ill ***li'-blllnld..refdlro C~ Clmtamer Description;, , . r.: Presem<:rtive Res€b Matrix. Dateffime .Comments / Remarks / ":f t
/pH . Sampled *** ConditiQn Notes, ~tc, -.--:J=.3 ..~..... l--t: U,\v ·V/Y··G.A·· ·I>r···----~,-. .. .._........ _........_... ....... ....".,. ...
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RECEIPT LOGIN BY: ~.. RECEIPT REVIEWED BY: fS./l/J-Page _ ...1of <:.
ROBLEIvI CHALN CLIENT: CNY/IC.O TE'-I-/ OECID#: 1'10 ~S(jro
ISSUES RECORDED BY (DATEffIME/INlTiALS)! \1..-"7-\1]-® \.4 \7 ~ ~ ~-Ab "iE"'''"'''''"tttt?'''''9'?''~~~;;,~;;,~~;;;_~;;;_"",,;';;_~.es:e~~:;:=.;,~~'-';;;;;;;;;-;;~;;";;;;;;;'~;:W:S~~&Rf~iii"iiiilil"ii'i§-iiiiiiiiiii'j~"'iii&l_=:;;;;;;;;iiiirmiii!iiilli
PLEA SE PROVIDE DETAILS OF BELOW -Samples/Containers Affected, as necessary,
o Samples Received Outside Temp. Range (see below) 0 NO coe document(s) received with samples o Container(s) NOT intact or in good condition
o Incorrect containers for analysis requested ~Container iabel! s) NOT cOllsistent with COC o Custody Seals Broken o OTHER: (if multiple, identify with numhers) I \
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RESOL1JTIONS: MINIMUM INFO: Issue#(if necessary) -Description -Contact Type (Verbal, t:P1ail, etc.) -Client Authorization Contact -DatelTimelInitials_
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<FINAL RESOLUTION OF ISSUES BY (DATE/TIME/INITIALS):. tz/o5h t1 &. i Co I if f!i./:1 page~of2
09109iOS
Oilfield Environmental &Compliance, Inc.
307 Roemer Way, Suite 300, Santa Maria, Co 93454
101 Adkisson Way, Taft, Co 93268
Phone: 805-922'-4772 I 661-762-9143
AR@oecusa.cd,m
Date: ILI!>/ )4
!
Client Name: .f "" ~ l' fo "'\ -CG k0 i
Project I Site Name: tJ ovJ etf c1 S ~tl;t l J/iI} a:t-i
Roundtrip Drive Time: tv A..r5 ~oundtriP Drive Mileage: 'Co c '
Start Field Time: o9J LJ ~ Jtop Fiel:d Time: (I f..._<)
Start Field Mileage: ff Stop Field Mileage: //ff
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Consumables: -z.. C, &>f/"'£ ~'f {G.:e ~v eS •
Decription I Comment:
Admin Use:
Name: i Initials: Date:
Total Drive Time: Total Field Time:
Totol Drive Mileage: Total Field Mileage:
TICKET NO. 2523
,
SOIL GAS SAMPUNG F:qRM
[5ATT---_-==~_=-T--~_lif_l4 ISAMPLER I II ~JtL .~CLIENT --r-~,r;('c>~e<:.-k PROJECT . ! t-j" vJ~" J. <" "'" I'V\..; """~ '"CONTAINER TYPE .-----\----!f,];tre\lfA.. <CONTAINER ID: O~C7d~3~-t~~o~cVI
SAMPLE ID (Locatl0n.~~ld ~:p~:h) $ z... ; . ~S' i
WEATHER CONDIT1ONS: S~_~fi'"
TEMPERATURE ~7P I PRECIPiTATION
CALCULATED PURGE VOLUME {b()iM tl5 I
• :
SAMPLING DEV1'6E:--'"-&;MI~'--\/C...f' : -
F)OR-GF.~STARf~!}~=~ _ltU?'L __.. END TIME. ! -,"0'1..
-'SAMPLE START TIME l" Jf t END TIME i -
.".......--'-'-~--~-----
i END PRESSURE ·C;ANISTER START
Z7(PRESSURE I
VOLUME GAS EXTRACTED 11 Liter ,
FIE:LD MEASUREMEI\JTS . :8t;t-lo.~->-"S.il.,~tc 117-_~_O
TIME FLOW (MUMIN) ((IN I• PRESSUR~ Ig) COMMENTS
f0 LI' I ~t:>jv..l / v--I" 'Z.~ "'Z. 8
l 0 11 1______J .._. ~2. '1 'C!1
{.IO _~l2 '"l.. \ 'i \ J._
\ ~~'A' Ii lTl I J~-.~--~-,s J )1 .!i 0 lLS .... -.--,.~.---~ .~,-.
10 LL6 ! I"'L 1'(..1
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j COMMENTS i j -Helium Results N ) 1
r<~'tt: 3~e, "6lflt( "L' _._------v i
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SOIL GAS SAMPLING ~ORM
SAMPLING DEViCE: =~~M.;t---,t,-e.._Q-"-Fc....':::-:-"'~:::-::-=::-_-----T_"""----;-___:--______--='_-_·-=-"_-l
PURGE START ~~~~___.__i~J;_S'--_-t-::E=N=D:-:T:::-IM:-::-:::-E~--,-_+-_J:-:O~,",-_________.....,
SAMPLE START TIMr~ _.._.-:II..",O"-O__-+_E_N_D_T_IM_E_.---,-,_--+___________
CANISTER START END PRESSURE2li PRESSURE I
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