HomeMy WebLinkAboutSTATUS REPORT 5/15/1993I
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G J L Environmental
Gary J. Leary, R.E.A.
Environmental Consultant
4009 FAIRWOOD ST.
BAKERSFIELD, CA 93306-1310
.(805) 872-1543
May 15, 1993
BAKERSFIELD CITY FIRE DEPARTMENT
Hazardous Material Division
2130 "G" Street
Bakersfield, California 93301
Re: 601 Eureka Street, Bakersfield, California
Property Owners: John M. and Deanna J. McCaUley
Subject: First Quarter Status Report for 1993
Prepared by:
GJL ENVIRONMENTAL
Ga.~y J. Leal-y, R.E._A.
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Status of Investigation and Cleanup
~ctivities Including the Results of All Investigations
Implemented to Date
On March 8, 1993 an Expanded Site Characterization was
undertaken. The results of the Expanded Site Characterization
are in Exhibit "1".
On March 19 - 20, 1992, a site characterization was
performed, to define the vertical and horizontal extent of the
contamination plume.
No cleanup activities have been implemented.
Next Phase of Investigation
If the Bakersfield City Fire Department the lead agency in
this project agrees with PIWAREA ENGINEERING, INC. Findings from
the Expanded Site Characterization.
An Invitation for Bids will be issued this quarter, to
install the Vapor Extract Wells and treatment unit.
On November 16., 1992, the Bakersfield City Fire Department,
the lead agency, issued a letter which agreed with site
assessment recommendation from John R. Wilson and Associates.
An Invitation for Bids was issued on December 23, 1992, to
four (4) environmental consulting firms.
Method of Cleanup Proposed or Implemented to Date
The cleanup method proposed is a vapor extraction unit.
This was acceptable to the Bakersfield City Fire Department.
Time Schedules for the ComDletion of the Investigation
of the Site and Remediation
No time schedules for completion of investigation or
remediation has been set at this time.
Method and Location of Disposal of the Released
Hazardous Substance and any Contaminated
Soil, Ground Water or Surface Water
None has been chosen at this time.
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Manifest Required for Transport of Hazardous Bubstances
Does not apply at this time.
Monitoring Well Data Including Ground Wate~
Elevation, pH, Conductivity, Temperature and Gradient
No monitoring wells have been installed at this time.
Tabulated Analytical Results of Ground
Water or Boil Bammlin~
The tabulated analytical results of soil sampling from the
Expanded Site Characterization can be found in Exhibit "2"..
Bite Map Bhowing the "Zero Line" of Contamination
if Known, and Changes in Analyses and Gradient
Measurements Over the Last Ouarter
This information can be found in Exhibit "3".
Tabulated Data for all Monitoring Wells
Including Ground Water Elevations Collected to Date
No monitoring wells have been installed at this time.
~ Bite Map Delineating Ground Water Elevation
Contours Based on Recent Data; if the Bite is in Remediation,
Define the Zone of Capture for any Extraction Welles)
on the Contour Map
Does not apply at this time.
Tabulated Analytical Results from all Previous
Bamplinq Events Including Laboratory Reports for the Most
Recent Sampling Event and Chain of Custody Documentation
Ail this information can be found in Exhibit "4".
Site Map Delineating Contamination Contours
for Boil and Ground Water Based on Recent Data
The site map delineating contamination contours for soil.
See Exhibit "5". There is no groundwater data at this time.
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The Q~tity of Ground Water, Vapors, and
Hydrocarbons Removed {in Gals., cu. ft.,.and lbs.,
ResDectively), Durinq the Reportinq Period and Ctunulative to Date
Does not apply at this time.
T{mes ~-d Dates Equipment Was Not Operating.
Cause of Shutdownt and a Corrective Action Plan to
Insure Similar Shutdowns do not Reoccur (Proposed Corrective
Actions are to be Completed Within 30 Days of the
System Shutdown}
Does not apply at this time.
Est{mates of the Quantity of contamination
Ramai~nq in. Soil and Ground Water, and Time for
ComplQting Remediation
Does not apply at this time.
Sincere ly,
GJL ENVIRONMENTAL
Gary J. ~a~, R.E.A. x~)
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EXHIBIT I
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pl-e3/~ITECHAR-~T
EXPANDED SITE CHARACTERIZATION
AND CORRECTIVE ACTION PLAN
CALIFORNIA SHEET METAL
601 Eureka Street
Bakersfield, California
Prepared For:
John McCauley
c/o Byrum, Holland & Griffin
1800 - 30th Street, 4th Floor
Bakersfield, CA 93301
Prepared By:
PIWAREA ENGINEERING, INC.
3125 19th Street, Suite 133
Bakersfield, CA 93301
John R. Wilson, R.C.E. #23270
Registration Expires 12-31-93
April 1993
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1.0
2.0
3.0
4.0
5.0
TABLE OF CONTENTS
INTRODUCTION ........................................... 1
1.1 Site Description .................................. 2
1.2 Project History ................................... 2
METHODS OF INVESTIGATION ............................... 8
2.1 Drilling and Soil Sampling ........................ 8
2.2 Laboratory Analysis ............................... '9
CORRECTIVE ACTION PLAN: ASSESSMENT OF IMPACTS .......... 10
3.1
3.2
3.3
3.4
3.5
3.6
Geologic Conditions ............................... 10
Subsurface Conditions ............................. 10
Hydrogeology ...................................... 10
Soil Vapor Monitoring .............................. 11
Laboratory Analytical Results ..................... 11
Conclusions ....................................... 12
CORRECTIVE ACTION PLAN: FEASIBILITY STUDY .............. 15
CLOSURE ................................................ 18
REFERENCES
Figure 1
Figure 2
Figure 3
Figure 4
Vicinity Map
Site Map
Cross Section AA'
Cross Section BB'
APPENDIX A Laboratory Reports and Chain-of-Custody
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 1
1.0 INTRODUCTION
This report presents the results of an Expanded Site
Characterization performed by PIWAREA ENGINEERING, INC. (PIWAREA)
at the CALIFORNIA SHEET METAL facility located at 601 Eureka
Street, Bakersfield, California. PIWAREA proposed to conduct and
Expanded Site Characterization associated with a release of
gasoline hydrocarbons from the 550 gallon underground gasoline
storage tank (UST) at the above referenced facility which were
removed under Permit No. BR-0031 with the City of Bakersfield, Fire
Department Hazardous Materials Division.
'On December 21, 1991, CALPI, INC. excavated the soil above and
around the UST, and removed the tank, dispenser and associated
project pipeline. Total Petroleum Hydrocarbons (TPH) as gasoline
and the gasoline constituent volatile aromatics were detected in
soil samples from beneath the UST. TPH as gasoline was detected at
810 mg/kg at a depth of two feet beneath the UST and at 10,000
mg/kg and 98 mg/kg in these samples, respectively. These
concentrations are in excess of Regional Water Quality Control
Board (RWQCB) guidelines for gasoline hydrocarbons in the soil, and
resulted in the Lead Implementing Agency (LIA) which is the City of
Bakersfield Fire Department Hazardous Materials Division (BKDHMD)
requesting an initial site characterization.
On March 19, 1992, WILSON & ASSOCIATES, INC. (W&A) advanced six
soil borings in the vicinity of the former UST to assess the
vertical and lateral limits of gasoline hydrocarbons in the
subsurface. Gasoline hydrocarbons were detected to a depth of less
than 75 feet below surface grade. Lateral limits of the gasoline
hydrocarbons appear to have been delineated to the northeast, east
southwest and west. Additional lateral delineation was required by
BFDHMD to the northwest and southeast. This report documents that
additional investigation, consisting of three soil borings and the
laboratory analysis of eight soil samples for the presence of
gasoline hydrocarbons.
All methods employed are in compliance with regulations and
guidelines set forth in California Code of Regulations (CCR) Title
22, Article 11, and Title 23, Chapter 3, California Site Mitigation
decision Tree Manual, the Code of Federal Regulations (CFR) Title
29, Part 1910, Section 120, CDR Title 40, Parts 300-399, Tri-
Regional Board Staff Recommendations for Preliminary Evaluation and
Investigation of Underground Tank sites, City of Bakersfield and
Kern County regulations, as well as accepted professional
environmental/geotechnical engineering procedures.
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 2
The scope of work for this project was developed in conjunction
with Mr. John McCauley representing California Sheet Metal and Mr.
Ralph Huey of BFDHMD. Work performed during this phase includes
the following:
Development of site health and safety, and technical work
plans.
Drilling and sampling of three exploratory soil borings
to a maximum depth of 50 feet below surface grade.
Laboratory analysis of eight selected soil samples for
Total Petroleum Hydrocarbons as gasoline, and the
gasoline constituent volatile aromatics.
Preparation of this report presenting our results,
conclusions, and remedial action alternatives for the
site.
1.1 Site Description
The site is located at 601 Eureka Street, in the City of
Bakersfield, County of Kern, California (Figure 1) The site
formerly operated a gasoline storage facility for California Sheet
Metal's company vehicles. The site is situated within an area of
predominantly commercial properties. The overall~site topography
is essentially flat, with a slight fall to the south.
1.2 Project History
California 'Sheet Metal contracted with CALPI, INC. of Bakersfield,
California to remove the 550 gallon UST, gasoline dispenser, and
associated product pipeline at the site. On December 17, 1992,
CALPI excavated the soil above and around the UST, and removed the
tank dispenser and associated project pipeline. The tanks were
removed under City of Bakersfield Hazardous Materials Division
Permit No. BP-0031. Soil samples were collected from beneath the
UST at the direction of Mr. Joe Dunwoody with the BFDHMD.
Soil samples were collected at depths of two feet and six feet
beneath the center of the former UST as shown on Figure 2. These
samples are designated #1 and #2. The soil samples were collected
from the backhoe bucket immediately after soil excavation and
stored in 2" diameter brass tubes. All soil samples were sealed
with teflon (TM) liners and end caps. The samples were then
labeled, handled and transported according to the United States
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 3
Environmental Protection Agency (USEPA) protocol to a State of
California Department of Health Services (DOHS) certified
laboratory.
Sample identification and chain-of-custody procedures were utilized
for the samples to ensure sample integrity and to document sample
possession from the time of collection to its ultimate destination.
The sample label identified the job number, sampler, date and time
of collection and sample number unique to the sample. All sampling
equipment was washed with TSP~ (tri-sodium phosphate) cleanser,
pre-rinsed with tap water and a final rinse of de-ionized water
prior to sampling.
The soil samples designated for chemical analysis were submitted to
SMC Laboratories in Bakersfield, California, a State of California
Department of Health Services (DOHS) certified laboratory. The
soil samples were analyzed for Total Petroleum Hydrocarbons (TPH)
as gasoline, and the gasoline constituent volatile aromatics,
benzene, toluene, ethyl benzene, and total xylenes (BTEX) using
USEPA.Test Method 5030/8020.
TPH as gasoline, and the gasoline constituent volatile aromatics
were detected in soil samples from beneath the UST. TPH as
gasoline was detected at a concentration of 810 mg/kg at a depth of
two feet and 10,000 mg/kg at a depth of six feet. The volatile
aromatic benzene was detected at 44 mg/kg and 98 mg/kg in these
samples, respectively. Table 1 presents the analytical results for
TPH as gasoline, and the gasoline constituent volatile aromatics in
the two soil samples from beneath the UST.
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Page No. 4
EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Table 1
(Analytical results expressed in milligrams per kilogram (ppm))
Sample Location Depth TPH Benzene Tolulene Ethyl Total
No. ~ Gasoline Benzene Xylenes
1 550 Gal. UST 2' 810 44* 170, 19, 153,
i 2 550 Gal. UST 6' 10,000
98*
275*
23*
290*
MRL N/A NA t.0 0.005 0.005 0.005 0.005
AL N/A NA 1,000 1.0 1.0 50 50
I ND: None Detected at or above minimum reporting level (MRL)
NA: Not Applicable
Exceeds RWQCB recommended guidelines.
Regional Water Quality Control Board recommended guidelines for
contaminants in soil. the recommended guidelines were calculated using the
LUFT methodology by multiplying the most stringent current federal or state
water quality standards by a factor of 1,000 for gasoline, and the volatile
aromatics to account for attenuation due to soil composition and distance
from groundwater.
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Based on the soil sampling and laboratory analysis, TPH as
gasoline, and the gasoline constituent volatile aromatics were
detected at concentrations in excess of RWQCB recommended
guidelines for additional assessment activities. The City of
Bakersfield Fire Department Hazardous Materials Division required
assessment activities to determine the vertical and lateral extent
of the impacted soil, and to determine whether there is a threat of
these hydrocarbons impacting groundwater.
California Sheet Metal contracted with Wilson and Associates, Inc.
of Bakersfield, California to perform the preliminary site
characterization. Drilling commenced on March 19, 1992. A total
of six soil borings were drilled within this phase of soil
characterization (Figure 2). Soil boring B-1 was advanced~through
the center of the former gasoline tank location to a depth of 90
feet below surface grade to assess the vertical extent of impacted
soil beneath this probable source area. Soil borings, B-2 through
B-6, were advanced radially from the tank location to assess the
lateral limits of impacted soil.
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Nineteen soil samples were sent to BC Laboratories, of Bakersfield,
California, a state-certified laboratory for chemical analysis.
The soil samples were analyzed for Total Petroleum Hydrocarbons
(TPH) as gasoline using USEPA Test Method 8015 modified, and the
gasoline constituent volatile aromatics (BTEX) using USEPA Test
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EXPANDED SITE CHARACTERIZATION Page No. 5
CALIFORNIA SHEET METAL
Method 5030/8020. Seven of the samples were also analyzed for the
presence of total lead using SW-6010.
TPH as gasoline was detected in boring B-1 at a concentration of
6,000 mg/kg at the depths of 5 and 15 feet, 3,100 mg/kg at 30 feet,
3,000 mg/kg at 45 feet and 18,000 mg/kg at 60 feet, but not
detected in the samples from 75, 80, 85 and 90 feet. TPH as
gasoline was detected in boring B-2 positioned 10 feet southwest of
B-1 at 12,000 mg/kg at 15 feet, and 400 mg/kg at 30 feet. TPH as
gasoline was detected in boring B-3 positioned 20 feet southeast of
B-1 at 30,000 mg/kg at 25 feet. TPH as gasoline was not detected
in boring B-4 positioned 25 feet southwest of B-1 at 30 feet and 40
feet. TPH as gasoline was detected in boring B-5 positioned 20
feet northwest of B-1 at 7,000 mg/kg at 40 feet, but was not
detected at a depth of 15 feet in this boring. TPH as gasoline was
not detected in boring B-6 positioned 30 feet northeast of B-1 at
20 feet, 30 feet, and 40 feet.
The gasoline constituent volatile aromatics were also detected to
a depth of 60 feet below the UST and 30 feet laterally from the
tank. Total lead was detected in B-1 at 39 mg/kg at a depth of 5
feet, 4.5-mg/kg at 30 feet and 4.5 mg/kg at 85 feet, in B-2 at 3.9
mg/kg at 30 feet, and in B-6 at 3.6 mg/kg at 20 feet and at 8.5
mg/kg at 40 feet. Soluble lead was detected in B-1 at 2.7 mg/1 at
15 feet.
Regional Water Quality Control Board recommended guidelines for
gasoline, and the gasoline constituent volatile aromatics, benzene,
toluene, ethyl benzene, and total xylenes have been calculated
using the LUFT methodology by multiplying the most stringent
current federal or state water quality standards by a factor of
1,000 to account for attenuation due to site-specific parameters
including vertical separation to groundwater, soil lithology,
fractures in subsurfaces, annual average precipitation, and any
direct conduits to groundwater. The recommended guidelines are
1,000 mg/kg for TPH as gasoline, 1.0 mg/kg for benzene and toluene,
and 50 mg/kg for ethyl benzene and total xylenes. The State of
California Title 22 Total Threshold Limit Concentration (TTLC) for
lead is 1,000 mg/kg and the Soluble Threshold Limit Concentration
(STLC) is 5.0 mg/1.
Laboratory analytical results for the nineteen selected soil
samples from the six preliminary site characterization borings are
summarized in Table 2 - Summary of Analytical Results.
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 6
Table 2
SUMMARY OF LABORATORY ANALYTICAL DATA
(values in milligrams per kilogram (ppm)).
Boring Depth~' TPH Benzene Toluene Ethyl Total Total Soluble
No. Gasoline Benzene Xylenes Lead Lead
I B-1 5' 6,000' ND(>20) 210'
50*
1960,
39
2.7
B-1 15' 6,000* ND(>100) 390* 170' 1290,
B-1 30" 3,100' ND(>2) 86* 71' 438* 4.5
i B-1 45' 3,000* 5* 160' 75* 390*
B-1 75' ND ND ND ND ND ND
I B-1 80' ND ND ND ND ND
i B-1 85' ND ND 0.047 ND 0.014 4.5
B-1 90' ND 0.084 0.16 0.049 0.088
, · B-2 15' 12,000' 1,000' 1,500' 340* 2,480*
B-2 30' 400 0.2 1.2 4.7 49 3.9
B-3 30' 30,000* 400 3,400* 800* 4,300*
B-4 30' ND ND ND ND ND
; B-4 40' ND ND ND ND ND
B-5 15' ND 0.011 0.017 ND ND
B-5 40' 7,000* 42 * 540* 160' 810'
B-6 20' ND ND ND ND ND 3.6
B-6 30' ND ND ND ND ND
B-6 40' ND ND 0.008 ND 0.010 8.5
I AL NA 1,000 1 1 50 5.0 1,000 5
MRL NA 1.0 0.005 0.005 0.005 0.005 2.5 0.5
ND:
I NA:
AL:
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None Detected at or above minimum reporting level (MRL)
Not Applicable
Exceeds RWQCB recommended guidelines.
Regional Water Quality Control Board recommended guidelines for
contaminants in soil. the recommended guidelines were calculated using the
LUFT methodology by multiplying the most stringent current federal or state
water quality standards by a factor of 1,000 for gasoline, and the volatile
aromatics to account for attenuation due to soil composition-and distance
from groundwater.
The data obtained from the tank removal operations suggest that
soil impacted with gasoline hydrocarbons at concentrations in
excess RWQCB recommended guidelines exist at the subject site in an
area beneath the gasoline UST. The subsequent soil drilling
activities indicate that gasoline hydrocarbons in excess of 1,000
mg/kg extend to a depth less than 75 feet below surface, and to a
radius less than 30 feet from the location of the former gasoline
· UST to the northeast and the southwest.
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 7
However, the lateral limits to the northwest and southeast were not
delineated by the preliminary site characterization. Upon review
of the preliminary site characterization, BFDHMD requested
additional drilling activities to delineate the lateral limits to
the northwest and southeast of the former gasoline UST. California
Sheet Metal contracted with PIWAREA ENGINEERING, INC. of
Bakersfield, California to perform this expanded site
characterization.
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
2.0 METHODS OF INVESTIGATION
Page No. 8
2.1 Drilling and Soil Sampling
Prior to~commencing field operations, a technical work plan was
reviewed and approved by BFDHMD personnel. Underground Service
Alert was notified 48 hours in advance of the site activities.
Drilling commenced on March 8, 1993 using a CME 75~ truck mounted
drill rig, and equipped with 6-inch diameter hollow-stem augers.
The augers were steam cleaned prior to use to minimize the
possibility of cross-contamination.
A total of three soil borings were drilled within this expanded
phase of soil characterization (Figure 2). Soil boring, B-7, was
advanced at a location 35 southeast of the gasoline tank to a depth
of 50 feet below surface grade. Soil boring, B-8, was advanced at
a location 30 northwest to a depth of 35 feet below surface grade.
Because soil vapors were detected in this boring, B-8 was
terminated at this depth, and an additional boring was advanced.
Therefore, boring B-9 was advanced 15 feet west of B-8 to a depth
of 50 feet. A Registered California Civil Engineer was on site to
log the borings, monitor soils during drilling for contamination,
and collect soil samples.
Soil samples were collected at 5-foot intervals in each of the
borings using a split-spoon sampler (ASTM D 3550 with shoe similar
to ASTM D 1586) equipped with three 6-inch by 2~5-inch diameter
stainless steel sleeves for soil retention. The soil samples were
obtained by driving the sampler with a 140-pound hammer dropping 30
inches in accordance with ASTM D 1586.
The lowermost sleeve at each sample interval was screened for total
organic vapors with a photo-ionization detector (PID). Headspace
vapor analysis was performed by first discarding a portion of the
soil retained at one end of the sleeve to produce a headspace. The
sleeve was then capped and the probe of the PID was inserted
through a hole in the cap and into the headspace for analysis.
The middle sample sleeve was immediately sealed with Teflon6 film,
capped, and placed on ice at less than 4oC for transport to a
California Department of Health Services (DOHS) certified
laboratory. The temperature within the ice chest was recorded at
each sampling interval and recorded on the chain of custody
document. Strict chain-of-custody procedures were utilized for all
samples collected to ensure sample integrity and to document sample
possession from the time of collection to the final destination.
The temperature within the ice chest was recorded at the time that
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 9
the ice chest was delivered to the laboratory and recorded on the
chain of custody document.
Sampling equipment was washed with TSP (tri-sodium phosphate)
cleanser, and rinsed with tap water and de-ionized water prior to
samplings, between sample intervals, and between borings to minimize
the potential of cross contamination. The augers were steam
cleaned prior to drilling and between borings to minimize the
potential of cross contamination. The borings were backfilled with
a cement-bentonite slurry.
2.2 Laboratory Analysis
Eight soil samples were sent to BC Laboratories for chemical
analysis. The soil samples were analyzed for Total Petroleum
Hydrocarbons (TPH) as gasoline, and the gasoline constituent
volatile aromatics benzene, toluene, ethyl benzene, and total
xylenes (BTEX) using USEPA Test Method 5030/GCFID, and USEPA Test
Method 5030/8020, respectively.
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
3.0 CORRECTI~E ACTION PLAN: ASSESSMENT OF IMPACTS
Page No. 10
3.1 Geologic Conditions
Regional Geology: The site is located in the southern part of the
Great Valley geomorphic province. The Great Valley is a
north-south trending valley, approximately 400 miles long by 50
miles wide. Surface and groundwater in the San Joaquin Valley is
derived predominantly from the Sierra Nevada mountain range to the
east, and is transported by five major rivers, the southern most
being the Kern River. The subject site is located approximately
three miles south of the Kern River.
The surface of the San Joaquin Valley is composed primarily of
unconsolidated Pleistocene (1.6 million to 11,000 years ago) and
Recent (11,000 years ago to the present) alluvial sediments.
Beneath the alluvial sediments are older, predominantly lake bed
deposits. These lie unconformably on Mio-Pliocene marine sediments
which extend to crystalline basement at approximately 20,000 feet.
Site Geology: Geologic deposits in the study area include
Pleistocene alluvial sediments of the Kern River Formation, which
form a homocline dipping gently to the southwest. The deposits are
alluvium consisting of poorly indurated and dissected fan deposits
(CDMG,1964)o
3.2 Subsurface Conditions
Subsurface material encountered during drilling was alluvium to the
total depth of each boring. The alluvium was characterized by
unconsolidated,~moderate to good permeability, silt sands and well
graded sands to a depth of 90 feet which is the greatest depth
penetrated in the investigations. Cross Sections AA' and BB' have
been prepared which integrates the geology, the location of the
former underground storage tank, and the distribution of gasoline
hydrocarbons in the subsurface (Figures 3 and 4).
3.3 ~ydrogeology
The depth to the regional unconfined aquifer is approximately 200
feet below surface grade beneath the site with the direction of
groundwater flow to the south (Kern County Water Agency, 1991
Report on Water Conditions, Improvement District No. 4, February
1992). The nearest known occurrence of perched groundwater is two
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 11
miles to the southwest at a depth of 20 feet in the abandoned Kern
River channel to the ancient Kern Lake bed (Kern County Water
Agency, 1991 Water Supply Report, May 1992). No perched
groundwater is known to exist beneath the subject site.
3.4 Soil Vapor Monitoring
Soil samples collected during drilling were monitored with a
photo-ionization 'detector (PID) to evaluate organic vapor
concentrations. The PID was calibrated with an isobutylene
standard of 100 parts per million (ppm) and contained an 11.8
electron volt (eV) lamp, capable of detecting benzene (9.25 eV).
Boring logs present the PID readings as they were recorded in the
field.
3.5 Laboratory Analytical Results
TPH as gasoline was not detected in boring B-7, positioned 30 feet
southeast of the former gasoline UST in the samples from 20, 30 and
50' feet~ TPH as gasoline was not detected in boring B-8,
positioned 30 feet northwest of the former UST at 20 feet and 35
feet. TPH as gasoline was in boring B-9, positioned 15 feet west
of B-8 at 30 feet, 40 feet and 50 feet. The gasoline constituent
volatile aromatics were detected at trace concentrations in the
samples from B-7 at 50 feet, B-8 at 35 feet, and B-9 at 50 feet.
Laboratory analytical results for the eight selected soil samples
from the three borings are summarized in Table 3 - Summary of
Analytical Results. Copies of the analytical reports and chain of
custody documentation are presented in Appendix A - Laboratory
Analytical Results. Borings B-7, B-8 and B-9 were designated B-l,
B-2, and B-3 on the chain of custody document and are reported that
way on the laboratory reports.
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Table 3
SUMMARY OF LABORATORY ANALYTICAL DATA
(values in milligrams per kilogram (ppm))
Boring Depth TPH Benzene Toluene Ethyl Total
No. % Gasoline Benzene Xylenes
Page No. 12
I B-7 20' ND ND ND ND ND
B-7 30' ND ND ND ND ND
B-7 50' ND 0.064 0.029 ND 0.015
B-8 20' ND ND ND ND ND
I B-8 35' ND 0.079 0.11 ND 0.090
B-9 30' ND ND ND ND ND
B-9 40' ND ND ND ND ND
I B-9 50' ND 0.11 0.027 ND 0.045
AL NA 1,000 1 1 50 50
MLR NA 1.0 0.005 0.005 0.005 0.005
I ND:
None Detected at or above minimum reporting level (MRL)
NA:Not Applicable
*:Exceeds RWQCB recommended guidelines.
I Water Quality control Board recommended guidelines for
AL:
Regional
contaminants in soil. the recommended guidelines were calculated using the
LUFT methodology by multiplying the most stringent current federal or state
water quality standards by a factor of 1,000 for gasoline, and the volatile
aromatics to account for attenuation due to soil composition and distance
from groundwater.
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3.6 Conclusions
The data obtained from the tank removal operations suggest that
soil impacted with gasoline hydrocarbons at concentrations in
excess RWQCB recommended guidelines exist at the subject site in an
area beneath the gasoline UST. The preliminary site
characterization indicated that gasoline hydrocarbons in excess of
1,000 mg/kg extend to a depth of less than 75 feet below surface,
and to a radius of less than 55 feet from the location of the
former gasoline UST to the northeast and southwest. The subsequent
expanded site characterization has delineated the lateral limits to
the northwest and southeast less than 50 feet from the UST. Based
on the field information and analytical data, it appears that when
remediation measures are undertaken, they would involve
approximately 10,000 cubic yards of soil.
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 13
The gasoline constituent volatile aromatics benzene, toluene,
ethylbenzene, and total zulenes have maximum Contaminand Levels
(MCL's) established by the State of California for groundwater.
These concentrations are 0.67 ug/1 for benzene, 100 ug/1 for
toluene, 680 ug/1 for ethylbenzene, 1,750 ug/1 for total xylenes.
Gasoline fuel may contain sugnificant amounts of benzene, a proven
human carcinogen. Benzene is a colorless liquid with an aromatic
odor. It is incompatible with strongoxidizers like chlorine or
bromine with iron The routes of exD~ure for benzene include
inhalation, skin absorption, ingestion ~n~ skin and/or eye contact.
Symptoms of exposure to benzene icnclude irritation to the eyes,
nose and respiratory system, giddiness, headache, nausea,
staggering gait, fatigue, anorexia, lassitude, hermatitis and
abdominal pain.
The potential health hazard from benzene exposure is low given the
present burial of the impacted soil by at lease eight feet of
overburden soil. However, the exposure to benzene would be
moderate to high, if the impacted soil were to be excavated and
exposed to the atmosphere. Conversely, the potential for exposure
would be very low if an in-situ mitigation technology was used such
as soil vapor extraction, where the extracted gasoline vapors are
destroyed at and efficiency of 99% prior to emission to the
atmosphere.
The gasoline constituent volatile aromatics have a very high
potential to evaporate at the surface given their high vapor
pressures. The leaching potential of the volatile aromatics are
also high, on the order of 1.3 times that of water, and is again
controled by the vapor pressure and their high solubility in water.
Conversely, the soil retention potential for the volatile aromatics
are low.
These physical characteristics make the volatile aromatics highly
mobile in the subsurface, dependant primarily in the permeability
of the soil, and driven by gravity, soil moisture, and vapor phase
expansion. Because of the arid environment at the site, subsurface
water percolation is virtually non-sxistence. At the subject site
vertical gravity migration, and vapor phase lateral expansion are
the primary modes of the gasoline movement.
There are no surface waters within one mile of the subject site
which may be threatened by this release. The first encountered
groundwater aquifer beneath the subject site is the primary
unconfined groundwater zone used for drinking water in the
Bakersfield area. However, given that the first encountered
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 14
groundwater is in excess of 200 feet below surface grade, and the
presence of substantial intervening low permeability sedimentary
barriers to vertical migration of gasoline hydrocarbons, there is
a very low probability of the gasoline hydrocarbons impacting the
groundwater. The following Table 4 presents a summary of the
physical.~ characteristics of the gasoline constituent volatile
aromatics.
Table 4
Physical Characteristics of the Gasoline Constituent Volatile Aromatics
Chemical M.P. B.P. Solubility Vapor Pressure Density
(C~ ~C~ ~ppm~ /mm Hq at 20-25.C~
Benzene 5.51 80 1780 75.20 0.879
Toluene 95 110.6 537 21.84 0.867
Ethylbenzene -93.9 136.2 167 7.08 0.867
O-Xylene -29 144.4 162 6.16 0.880
M-Xylene -53.6 139.1 162 6.16 0.864
P-Xylene.~ -13.2 138.4 162 6.16 0.861
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
4.0 CORRECTIVE ACTION PLAN: FEASIBILITY STUDY
Page No. 15
At least four options for remediation for the soil are applicable
to the site; 1. natural in-situ biodegradation, 2. excavation and
transporation of soil to an approved landfill or recycling
facility, 3. excavation and surface bioremediation, and 4. ~
option 1: Natural In-Situ Biodeqradation
Natural in-situ biodegradation is appropriate in these
circumstances and is protective of the environment given the
foollowing facts: (1) the small volume of contamination; (2) the
nearly 150 foot distance of vertical separation between the
impacted soil and the first occurrence of groundwater (at
approximately 200 feet); (3) the existence of intervining
sedimentary barriers to migration; and (4) the ability of natural
processes to biodegrade the contamination without risk to
groundwater or people. Furthermore, because this option will not
require contamination to be exposed to the atmosphere, transported
long distances to a hazardous materials landfill, occupy scarce
hazardous waste landfill space, or become exposed to people or the
environment, this option poses a low risk to the environment and
human health.
option 2: Excavation and Offsite Disposal or Recycling
In option 2, contaminated soil would be excavated.to a depth 60-75
feet where the site assessment had indicated that the limits of
· concentration in excess of the recommended guildlines would be
reached, and laterally 35 feet from the the gasoline tank Because
the impacted soil extends to a gignificant depth, and there are on-
site structures and nearby roadways which limit the boundaries of
the excavation, this option is likely not feasible.
The decision whether the soil may be transported to a recycling
facility or required diposal at a hazardous waste landfill depends
on the concentration of contaminants in the soil after., is tis
stockpiled. If the concentrations exceed the recycling facilities'
permit specifications, then disposal at a hazardous waste landfill
would be required. Judging from the findings of this study,
however, it appears that the soil might qualify to be recycled at
one of several approved facilities.
Whether the soil would be recycled or disposed of in a landfill,
this option would be exceptionally expensive. In light of the
depth of the impacted soil, and the facts that this option would
expose the contamination to the atmosphere during and after
excavation, and would require transporting contamination long
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 16
distances to a landfill or recycling facility, PIWAREA ENGINEERING
does not recommend this option.
Option 3: Excavation and Surface Bioremediation
In option 3, the impacted soil would again be excavated, but then
would be~ treated on-site to non hazardous concentrations through
the prcess of bioremediation. Surface bioremediation has been
shown to be particularily successful in the San Joaquin Vallen
given the high temperatures, and low relative humidity, with a
probable time frame of less than six months. As with option 2, the
depth of the impacted soil, and the fact that it would expose the
contamination to the atmosphere during and after excavation, makes
it undesirable in light of the circumstances at the site.
Option 4: In-Situ Vapor Extraction
Option 4 would invole treating the soil through in-situ vapor
extraction. This option would allow the soil to remain in place,
and the volatile gasoline hydrocarbons to be extracted through
wells drilled into the impacted soil. The effectiveness of this
option woild be dependant on the ability of an air flow to be
created throughout the zone of impacted soil, permitting the
volatile gasoline hydrocarbons to volatize, and then be extracted
through the wells.
The stratigraphy and high soil permeabilities at this site lends
itself to vapor extraction. PIWAREA ENGINEERING's experience in
vapor extraction of volatile gasoling hydrocarbons from high
permeability soils indicated that the timeframe" for successfull
treatment would be approximately six to nine months. The cost for
in-situ vapor extraction would be approximately $100,000 to
$150,000.
In the preliminary site characterization, Wilson and Associates
recommended that the best available remediation technology is to
treat the soil to non hazardous concentrations through the process
of In-Situ soil vapor extraction. The BFDHMD concurred with this
recommendation in their letter dated November 16, 1992.
PIWAREA ENGINEERING also recommends in-situ soil vapor extraction
as the best available technology to reduce the concentration of
gasoline hydrocarbons in the soil to below RWQCB recommended
guidelines.
The client should be aware that the State of California has been
mandated to have a leaking underground storage tank cleanup fund to
cover site investigation and remediation expenses above $10,000 but
not to exceed $1,000,000. PIWAREA ENGINEERING personnel will
assist the client in complying with the qualifying requirements for
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 17
the fund. Proper and complete documentation of tank operation
permits, tank abandonment permits, and compliance with regulatory
requests for assessment and remediation is critical for both
qualification, and prioritization of your site within the funding
system.
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
Page No. 18
5.0 CLOSURE
This report has been prepared for the exclusive use of California
Sheet Metal as it pertains to the location of the former 550 gallon
UST located at 601 Eureka Street, Bakersfield, California. The
results contained in each verbal or written report are based upon
the information acquired during the assessment. It is possible
that variations could exist beyond points explored during the
course of the investigation. Also, changes in conditions found
could occur at some time in the future due to contaminant
migration, variations in rainfall, temperature, and/or other
factors not apparent at the time of the field investigation.
This report should not be regarded as a guarantee that no further
contamination, beyond that which may have been detected within the
scope of this study, is present on or beneath the site. If
additional information regarding the possible presence or past use
of hazardous materials at the site becomes available, then the need
for further field investigation should be re-evaluated. Similarly,
if suspected contamination is encountered during earthwork or
construction activities, a qualified engineer or geologist should
be on-site to monitor the soils and collect samples for laboratory
analysis.
The services performed by PIWAREA ENGINEERING were conducted in a
manner consistent with the level of care and skill ordinarily
exercised by members of our profession currently practicing under
similar conditions in the state of California. No other warranty
is expressed or implied.
Thank you for this opportunity to be of service. If you have any
questions regarding this report Or the information contained
herein, please contact this office at your convenience.
Respectfully submitted,
PIWAREA ENGINEERING, INC.
J~h~ R. W~ilson, R.C.E. #23270
R~c3~stration Expires 12-31-93
P1--93/SITECHAR . ~
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EXPANDED SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
REFERENCES
California Division of Mines and Geology, 1964, Geologic
Map of California, Bakersfield Sheet.
Kern County Water Agency, 1991, Water Supply Report,
September 1992.
Kern County Water Agency, 1991, Report on Water
Conditions-Improvement District No. 4, February 1992.
Tri-Regional Board Staff Recommendations for Preliminary
Evaluation and Investigation of Underground Tank Sites
California Water Resources Control Board, 1989, LUFT
Manual Guidance Document.
California Water Quality Control Board-Central Valley
Region, Compilation of Water Quality Goals, October 1991.
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III I ', '~ ~J
',1~1 I r '
Ill I 'ill ,~ I Ill' ! I. Imon lid..
,] GIII!EIIFIELD :
/ OLD IIIVEI1 i I}1 GlOflgt§J
/ ./ J
..? ,' t ...... , ..... s.~,_ __ ~"I,;'
1i.
.FIGURE I
'1 /
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C
-FIGURE 3
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APPE~NDIX A
Laboratory Reports and Chain-of-Custody
a£CEIVED
!
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WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA' 93301
Attn.: JOHN R. WILSON
Petroleum Hydrocarbons
323-6460
Date of
Report: 03/22/93
Lab ~: 93-02148-1
4 1993
~l~o~,, ~ ~oouU. INC.
Sample Description: CALIF. SHEET METhyL: B-1 ® 20' (SOIL) 03-08-93 ® 0900 SAMPLED BY
J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix:
Soil
Date Sample
Collected:
03/08/93
Date Sample
Received ® Lab:
03/08/93
Date Analysis
Completed:
03/~9/93
Constituents
Benzene
Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum
Hydrocarbons (gas)
Minimum
Analysis Reporting Reporting
Results Units Level
None Detected mg/kg 0.005
None Detected mg/kg 0.005
None Detected mg/kg 0.005
None Detected mg/kg ~ 0.01
None Detected mg/kg !.
'1
California D.O.H.S. Cert. $1186
Department Supervisor
4100A~a$ Ct. · ~aker~-field, CA c~33C8 · (805] 327-4~11 · F~,X (SCb---') ~.7-1918
LAB RATORIES. InC. ' ,~CHAIN OF CUSTODY
Bakersfield, CalifOrnia 93308
o ~~ , -'
, , ~ N
5~ ~ ..
..
~ ~ ~ ~ ~ ~ ~ ~: Matrix(S) Soil (SL) Sludge
r~ ~ (W) Water (Other)
I
~- ~- ~--.
~ ~ ~. ~-: ~ ~ ~ ~ ~ ~ ~ Samples rec. cold (y/n)
Custody Seals (y/n)
~ ~esults
, ' - Date & Time
~. d l d,-~ d X ~' ~,~ Number and
~' ~' a ~" ~'~ ~'~ ~ ~ ~ ~. ~ ........ ~ L~' ,~ ~ Container Type
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Petroleum Hydrocarbons
WILSON &ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R.., WILSON
323-6460
Date of
Report: 03/22/93
Lab $: 93-02148-2
Sample Description: CALIF. SHEET METAL: B-1 ® 30' (SOIL) 03-08-93 ® 0915 SA~_PLED BY
J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/08/93
Date Sample
Received @ Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Minimum
Analysis Reporting Reporting
Constituents Results Units Level
Benzene None Detected mg/kg 0.005
Toluene None Detected mg/kg 0.005
Ethyl Benzene None Detected mg/kg 0.005
Total Xy!enes None Detected mg/kg 0.01
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg 1.
California D.O.H.S. Cert. $1186
Department Supervisor
41 CO.riss Cc. · i~ake~s6elct. ~ ~)~_~C~ - (15~ 327~491 I - ~:AX (1~-] 3~'-1918
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R% WILSON
323-6460
Sample Description: CALIF. SHEET METAL: B-1 @ 50'
J.R. WILSON
Date of
Report: 03/22/93
Lab ~: 93-02148-4
(SOIL) 03-08-93 @ 0945 SAMPLED BY
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix:
Soil
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Date Sample
Collected:
03/08/93
Constituents
Benzene
Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received ® Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Analysis Reporting
Results Units
0.064 mg/kg
0.029 mg/kg
None Detected mg/kg
0.015 mg/kg
None Detected mg/kg
Minimum
Reporting
Level
0.005
0.005
0.005
0.01
I
I
California D.O.H.S. Cert. #1186
Department Supervisor
41 COAt, as Ct.. · ~akersfietct, CA 93308 · ~ 327-491 I · ~AX (BOS'J 32-7-1
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BA/fERSFIELD, CA 93301
Attn.: JOHN R~ WILSON 323-6460
Sample Description: ~%LIF. SHEET METAL: B-2 ® 20'
J.R. WILSON
Date of
Report: 03/22/93
Lab ~: 93-021~8-5
(SOIL) 03-08-93 ~ 1030 SAMPLED BY
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - ~odified EPA 8015
Individual constituents by EPA ~ethod 5030/8020.
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Sample Matrix: Soil
Date Sample
Collected:
03/08/93
Constituents
Date Sample
Received ® Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Minimum
Analysis Reporting Reporting
Results Units Level
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Benzene
Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum'
Hydrocarbons (gas)
None Detected mg/kg
None Detected mg/kg
None Detected mg/kg
None Detected mg/kg
None Detected mg/kg
0.005
0.005
0.005
0.01
1.
California D.O.H.S. Cert. $1186
Department Supervisor
41 (20 ,a,t~as Cc. · ~akersfietct. C,~ 932~08 · (E~-'] 327-491 I · I::~X (15)(2~ 3~7'-1 91 8
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Petroleum Hydrocarbons
WILSON &ASSOCIATES Date of
2217 "E" STREET Report: 03/22/93
BAKERSFIELD, CA' 93301 Lab ~: 93-02148-7
Attn.: JOHN R. WILSON 323-6460
Sample Description: CALIF. SHEET MET~%L: B-2 ® 35' (SOIL) 03-08-93 ~ 1100 SD/~iPLED BY
J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
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Sample Matrix: Soil
Date Sample
Collected:
03/08/93
Constituents
Date Sample
Received ® Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Minimum
Analysis Reporting Reporting
Results Units Level
Benzene
Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum
Hydrocarbons (gas)
0.079 mg/kg 0.005
0.tl mg/kg 0.005
None Detected mg/kg 0.005
0.090 mg/kg 0.01
None Detected mg/kg 1.
I
I
California D.O.H.S. Cert. ~1186
Department Supervisor
41COAr3as Ct. · Bakersfield. C~ 93308 · (805] 327~491 I · FAX (BOb-] 327-191 8
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Petroleum Hydrocarbons
WILSON &ASSOCIATES Date of
2217 "E" STREET Report: 03/22/93
BAJfERSFIELD, C3~ 93301 Lab ~: 93-02148-8
Attn.: JOHN R. WILSON 323-6460
Sample Description: ~%LIF. SHEET METJ~L: B-31 ~ 30' (SOIL) 03-08-93 @ 1200 SJ~MPLED BY
J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/08/93
Constituents
Date Sample
Received $ Lab:
03/08/93
Analysis
Results
Date Analysis
Completed:
03/19/93
Reporting
Units
Minimum
Reporting
Level
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Benzene
'Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum
Hydrocarbons (gas)
None Detected
None Detected
None Detected
None Detected
None De~ected
mg/kg
mg/kg
mg/kg
mg/kg
0.005
0.005
0..005
0.01
I
I
California D.O.H.S. Cert. #1186
Department Supe-~visor
41 CO Ar~as Ct. · ~)ake~sf~eld. ~ ~):~330~ · (80~ 327-491 I · ~X (l~Ob--I 3~.7-1918
I
Petroleum Hydrocarbons
WILSON.& ASSOCIATES
2217 "E" STREET
BAKERSFIELD, C~ : 93301
Attn.: JOHN ~. WILSON
323-6460
Date of
Report: 03/22/93
Lab ~: 93-02148-9
Sample Description: CALIF. SHEET META3~: B-3 % 40' (SOIL) 03-08-93 ® 1215 S~iPLED BY
J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/08/93'
Constituents
Date Sample
Received ~ Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Minimum
Analysis Reporting Reporting
Results Units Level
I
I
Benzene None Detected mg/kg 0.005
Toluene None Detected mg/kg 0.005
Ethyl Benzene None Detected mg/kg 0.005
Total Xylenes None Detected mg/kg 0.01
Total Petroleum
Hydrocarbons (gas) None DetecTed mg/kg 1.
I
I
California D.O.H.S. Cert. ~1186
Department Supervisor
4100At~es Ct. · Bakersfielc~, C~ 93308 - (805] 227-491 I · ~AX (805-1 ~27-1918
I
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Petroleum Hydrocarbons
WILSON &ASSOCIATES Date of
2217 "E" STREET Report:
BAKERSFIELD, CA 93301 Lab 5:
Attn.: JOHI~ Ri WILSON 323-6460
03/22/93
93-02148-10
Sample Description: CALIF. SHEET METAL: B-3 ~ 50' (SOIL) 03-08-93 ~ 1230 SAM/PLED BY
J.R. WILSON
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I.
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TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020. L':'I...~.'
Sample Matrix: Soil
Date Sample
Collected:
03/08/93
Constituents
Date Sample
Received $ Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Analysis Reporting
Results Units
Minimum
Reporting
Level
Benzene 0.11
Toluene 0.027
Ethyl Benzene None Detected
Total Xylenes 0.045
Total Petroleum
Hydrocarbons (gas) None Detected
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
0.005
0.005
0.005
0.01
California D.O.H.S. Cert. ~1186
Department Supervisor
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EXHIBIT 2
SUMMARY OF LABORATORY ANALYTICAL DATA
(Values in milligrams per kilogram (ppm))
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Boring Depth TPH Benzene Toluene Ethyl Total
No. Gasoline Benzene X¥1enes
B-7
B-7
B-7
B-8
B-8
B-9
B-9
B-9
AL
MLR
ND:
NA:
*:
AL:
20' ND ND ND ND ND
30' ND ND ND ND ND
50' ND 0.064 0.029 ND 0.015
20' ND ND ND ND ND
35' ND 0.079 0.11 ND 0.090
30' ND ND ND ND ND
40' ND ND ND ND ND
50' ND 0.11 0.027 ND 0.045
NA 1,000 1 1 50 50
NA 1.0 0.005 0.005 0.005 0.005.
None Detected at or above minimum reporting level (MRL)
Not Applicable
Exceeds RWQCB recommended guidelines.
Regional Water Quality Control Board recommended
guidelines for contaminants in soil. The recommended
guidelines were calculated using the LUFT methodology
by multiplying the most stringent current federal or
state water quality standards by a factor of 1,000
for gasoline, and the volatile aromatics to account
for attenuation due to soil composition.and distance
from groundwater.
EXHIBIT 3
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NORTH
SCALE,I% I0'
! ~ :::i I~1"1E)14.
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EXHIBIT 4
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SUMMARY OF LABORATORY ANALYTICAL DATA
(Values in milligrams per kilogram (ppm))
Boring Depth TPH Benzene Toluene Ethyl Total
No. Gasoline Benzene Xylenes
B-7
B-7
B-7
B-8
B-8
B-9
B-9
B-9
AL
MLR
ND:
NA:
*:
AL:
20' ND ND ND ND ND
30' ND ND ND ND ND
50' ND 0'064 0.029 ND 0.015
20' ND ND ND ND ND
35' ND 0.079 0.11 ND 0.090
30' ND ND ND ND ND
40' ND ND ND ND ND
50' ND 0.11 0.027 ND 0.045
NA 1,000 1 1 50 50
NA 1.0 0.005 0.005 0.005 0.005.
None Detected at or above minimum reporting level (MRL)
Not Applicable
Exceeds RWQCB recommended guidelines.
Regional Water Quality Control Board recommended
guidelines for contaminants in soil. The recommended
guidelines were calculated using the LUFT methodology
by multiplying the most stringent current federal or
state water quality standards by a factor of 1,000
for gasoline, and the volatile aromatics to account
for attenuation due to soil composition-and distance
from groundwater.
RECEIVED
MAR g & 1993
W~L,~,~ ~ ~o,~u~. INC.
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Petroleum Hydrocarbons
WILSON &ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA ' 93301
Attn.: JOPIN R. WILSON 323-6460
Sample Description: C_n_LiF. SHEET MET3~L: B-1 @ 20'
J.R. WILSON
Date of
Report: 03/22/93
Lab ~: 93-02!48-1
(SOIL) 03-08-93 @ 0900 S~/HPLED BY
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
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Sample Matrix:
Date Sample
Collected:
03/08/93
Constituents
Soil
Date Sample
Received @ Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Minimum
Analysis Reporting Reporting
Results Units Level
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Benzene
Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum
Hydrocarbons (gas)
None Detected mg/kg
None Detected mg/k9
None Detected mg/kg
None Detected mg/kg
None Detected mg/kg
0.005
0.005
0.005
0.01
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California D.O.H.S. Cert. ~1186
Department Supervisor
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Petroleum Hydrocarbons
WILSON &ASSOCIATES
2217 "E" STREET
BAKERSFIELD, Cb 93301
Attn.: JOHlq R~'WILSON
323-6460
Date of
Report: 03/22/93
Lab ~: 93-02148-2
Sample Description: CALIF. SHEET METAL: B-! @ 30' (SOIL) 03-08-93 @ 0915 S3%MPLED BY
J.R. WILSON
TEST M~THOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/08/93
Date Sample
Received ~ Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Constituents
Minimum
Analysis Reporting Reporting
Results Units Level
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Benzene None Detected mg/kg 0.005
Toluene None Detected mg/kg 0.005
· Ethyl Benzene None Detected mg/kg 0.005
Total Xylenes None Detected mg/kg 0.01
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg 1.
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California D.O.H.S. Cert. ~1186
Department Supervisor
41 (20~r]as Cc. · ~akersfietc~. f2~ ~)330~ · (15~ 3,°7~491 I · t~AX (~ ~_7-1918
WILSON & ASSOCIATES
2217 "E" STREET
BAICERSFIELD, CA 93301
Attn.: JOHN R~ WILSON
Petroleum Hydrocarbons
323-6460
Date of
Report: 03/22/93
Lab ~: 93-02148-4
Sample Description: CALIF. SHEET METAL: B-1 ~ 50' (SOIL) 03-08-93 ® 0945 SAMPLED BY
J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix:
Soil
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Date Sample
Collected:
03/08/93
Date Sample
Received ~ Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Minimum
Analysis Reporting Reporting
Constituents Results Units Level
!
'1
Benzene
Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum
Hydrocarbons (gas)
0.064 mt/kg 0.005
0.029 mt/kg 0.005
None Detected mt/kg 0.005
0.015 mt/kg 0.01
None Detected mt/kg 1.
!
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California D.O.H.S. Cert. ~1186
Department Supervisor
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 9330i
Attn.: JOHN R~. WILSON
323-6460
Sample Description: CALIF. SHEET METAL: B-2 ® 20'
J.R. WILSON
Date of
Report: 03/22/93
Lab ~: 93-021~8-5
(SOIL) 03-08-93 $ 1030 S~2~PLED BY
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. M~nual Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Dace Sample
Collected:
03/08/93
Date Sample
Received @ Lab:
03/08/93
DaCe Analysis
Completed:
03/19/93
Analysis Reporting
Constituents Results Units
None Detected mg/kg
None Detected mg/k~
None Detected mg/k~
None Detected mg/k9
None Detected
Benzene
Toluene
Ethyl Benzene
Total X¥1enes
Total Petroleum
Hydrocarbons (gas)
Minimum
Reporting
Level
0.005
0.005
0.005
0.01
California D.O.H.S. Cert. $1186
Department Supervisor
4100Ac~as Ct. · ~aker~6etc~. ~ ~3330~ · (19C~] 327~491 I . ~X (13~b--I ~2_~-1 91 8
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Petroleum Hydrocarbons
WILSON & ASSOCIATES Date of
2217 "E" STREET Report: 03/22/93
BAKERSFIELD, CA' 93301 Lab ~: 93-02148-7
Attn.: JOHN R. WILSON 323-6460
Sample Description: CALIF. SHEET METAL: B-2 ® 35' (SOIL) 03-08-93 ~ 1100 SAMPLED BY
J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/08/93
Constituents
Benzene
Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received ~ Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Minimum
Analysis Reporting Reporting
Results Units Level
0.079 mg/kg 0.005
0.11 mg/kg 0.005
None Detected mg/kg 0.005
0.090 mg/kg 0.01
None Detected mg/kg 1.
California D.O.H.S. Cert. $1186
Department Supervisor
4100,4~clas ~c. · Eiaker's~eld. ~ 9~EL.~ · (E)05] 327-491 I · I~,~,X (EiOb-] .~27-191 8
Petroleum Hydrocarbons
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WILSON & ASSOCI3%TES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
323-6460
Date of
Report: 03/22/93
Lab 5: 93-02148-8
Sample Description: CALIF. SHEET METAL: B-31 ® 30' (SOIL) 03-08-93 @ 1200 SAMPLED BY
J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample ~trix: Soil
Date Sample
Collected:
03/08/93
Date Sample
Received $ Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Analysis Reporting
Constituents Results units
Minimum
Reporting
Level
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Benzene
'Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum
Hydrocarbons (gas)
None Detected mg/kg 0.005
None Detected mg/kg 0.005
None Detected mg/kg 0.005
None Detected mg/kg 0.01
None Detected mg/kg 1.
'1
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California D.O.H.S. Cert. ~1186
Department Supervisor
41 CO Ar~as Ct. · Bakersfield, CA 93308 · (805] 327-491 I · ~v~ (805-13~°'7-1918
rO;mU~TCIR~ES
Petroleum Hydrocarbons
WILSON.& ASSOCIATES
2217 "E" STREET
BAKERSFIELD, COk ~ 93301
Attn.: JOHN ~. WILSON
323-6460
Date of
Report: 03/22/93
Lab ~: 93-02148-9
Sample Description: CALIF. SHEET METAL: B-3 ® 40' (SOIL) 03-08-93 ® 1215 SAMPLED BY
J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/08/93
Constituents
Date Sample
Received ® Lab:
03/08/93
Date Analysis
Completed:
03/19/93
Analysis Reporting
Results Units
Minimum
Reporting
Level
Benzene None Detected mt/kg 0.005
Toluene None Detected mt/kg 0.005
Ethyl Benzene None Detected mt/kg 0.005
Total Xylenes None Detected mt/kg 0.01
Total Petroleum
Hydrocarbons (gas) None Detected mt/kg 1.
California D.O.H.S. Cert. ~1186
Department Supervisor
41 02) Arias Cc. · ~ekersfield, C~ ~)~_~r_~ · ~ 327~491 I · FAX (805--J 32_7-1918
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Petroleum Hydrocarbons
WILSON &ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN ~. WILSON
323-6460
Date of
Report: 03/22/93
Lab ~: 93-02148-10
Sample Descriptfon: CALIF. SHEET METAL: B-3 ~ 50' (SOIL) 03-08-93 ~ 1230 SAMPLED BY
J.R. WILSON
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TEST FiETHOD:
TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
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Date Sample
Collected:
03/08/93
Date Sample
Received ® Lab:
03/08/93
Date Analysis
Completed:
03/~9/93
Minimum
Analysis Reporting Reporting
Constituents Results Units Level
Benzene
Toluene
Ethyl Benzene
Total Xylenes
Total Petroleum
Hydrocarbons (gas)
0.I1 mg/kg 0.005
0.027 mg/kg 0.005
None Detected mg/kg 0.005
0.045 mg/kg 0.01
None Detected mg/kg
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California D.O.H.S. Cert. $1186
Department Supervisor
! 4'~oo ^t~as court ,"¢CHAIN OF CUSTODY
I_~BORATORIES. IrlC. Bakersfield,'Calif0rnia 93308 o
%m;¢ ~ {~ ~ ¢ W ¢ Matrix(S) Soil (SL) Sludge
~ r~x ~ (W) Water (Other)
U Custody Seals (y/n)
~ ~ Results Needed by:
I ~ Date & Time
~ Container Type
EXHIBIT 5
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'1
G J L Environmental
Gary J. Leary, R.E.A.
Environmental Consultant
4009 FAIRWOOD ST.
BAKERSFIELD, CA 93306-1310
(805) 872-1543
January 4, 1993
BAKERSFIELD CITY FIRE DEPARTMENT
Hazardous Material Division
2130 "G" Street
Bakersfield, California 93301
Re: 601 Eureka Street, Bakersfield, California
~ropert¥ Owners: John M. and Deanna J. McCauley
Subject: Fourth Quarter Status Report
Prepared by:
GJL ENVIRONM~AL
Gary J. Leary, R.E.A.
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Status of Investigation and Cleanup
Activities Including the Results of All Investigations
Implemented to Date
On March 19 - 20, 1992, a site characterization was
performed to define the vertical and horizontal extent of the
contamination plume.
No cleanup activities have been implemented.
The results of the site characterization are in Exhibit "1".
Next Phase of Investiqatlon
On November 16, 1992, the Bakersfield City Fire Department,
the lead agency, issued a letter which agreed with site
assessment recommendation from John R. Wilson and Associates.
See Exhibit "5".
An Invitation for Bids was issued on December 23, 1992, to
four (4) environmental consulting firms. See Exhibit "6".
Method of Cleanup Proposed or Implemented to Date
The cleanup method proposed is a vapor extraction unit.
This was acceptable to the Bakersfield City Fire Department.
Time 'Schedules for the Completion of the Investigation
of the Site and Remediation
No time schedules for completion of investigation or
remediation has been set at this time.
Method and Location of Disposal of the Released
Hazardous Substance.and any Contaminated
soil, Ground Water or Surface Water
None has been chosen at this time.
Manifest Required for Transport of Hazardous Substances
Does not apply at this time.
Monitoring Well Data Including Ground Water
Elevation, pR, Conductivity, Temperature and Gradient
No monitoring wells have been installed at this time.
Tabulated Analytical Results of Ground
Water or Soil Sampling
The tabulated analytical results of soil sampling at the
site can be found in Exhibit "2".
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A Site Map Showinq the ,,Zero Line" of Contamination
if Known, and Changes in Analyses and Gradient
Measurements Over the Last Ouarter
Does not apply at this time.
Tabulated Data for all Monitoring Wells
Including Ground Water Elevations Collected to Date
No monitoring wells have been installed at this time.
A Bite Map Delineating Ground Water Elevation
Contours Based on Recent Data; if the Site is in Remediation,
Define the Zone of Capture for any Extraction Well(s)
on the Contour Map
Does not apply at this time.
Tabulated Analytical Results from all Previous
Sampling Events Including Laborator~ Reports for the Most
Recent Sampling Event and Chain of Custody Documentation
Ail this information can be found in Exhibit "3".
Bite Map Delineating Contamination Contours
for Soil and Ground Water Based on Recent Data
The site map delineating contamination contours for soil.
See Exhibit "4". There is no groundwater data at this time.
The Ouantit¥ of Ground Water, Vapors, and
Hydrocarbons Removed (in Gals., cu. ft., and lbs.,
Respectively). During the Reporting Period and Cumulative to Date
Does not apply at this time.
Times and Dates Equipment Was Not Operating,
Cause of Shutdown, and a Corrective Action Plan to
Insure Similar Shutdowns do not Reoccur (Proposed Corrective
Actions are to be Completed Within 30 Days of the System Shutdown)
Does not apply at this time.
Estimates of the Ouantit¥ of Contamination
Remaining in Soil and Ground Water, and Time for
Completing Remediation
Does not apply at this time.
Sincerely,
GJL/ldh
GJL ENVIRONMENTAL
I G]VlL ENGINEERING SURVEYING
''1 PRELIMINARY SITE CHARACTERIZATION
i OF GASOLINE IMPACTED SOIL
CALIFORNIA SHEET METAL
i PREPARED FOR:
i JOHN McCAULEY
I PREPARED BY:
JOHN R. WILSON AND ASSOCIATES, INC.
~ 70
2217' 'E'
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TABLE OF CONTENTS
RESULTS OF PRELIMINARY SITE CHARACTERIZATION
OF GASOLINE IMPACTED SOIL
CALIFORNIA SHEET METAL
INTRODucTIoN
1.1 Site Description .................
1.2 Background ......................
2.0 METHODS OF INVESTIGATION ............... 2.1 Drilling and Soil Sampling .............
2.2 Laboratory Analysis ................
3.0 FINDINGS '... ......................
3.1 Geologic Conditions ............ · ....
3.2 Subsurface Conditions ...............
3.3 Hydroqeology ....................
3.4 Soil Vapor Monitoring ..............
3.5 Laboratory Analytical Results '. ..........
4.0 CONCLUSIONS .
4.1 Remedial ~lternatives ............... -
5.0 RECOMMENDATIONS ..... ; ...............
6.0 CLOSURE .................. ~ .......
Exhibit A
Exhibit B
Exhibit C
APPENDIX A
APPENDIX B
Typical Section A-A
Site Plan
Typical Section B-B
Boring Logs
Laboratory Reports and Chain-of-custodY
5
5
5
5
6
6
9
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
1 . 0 I~PI~RoDucTION
PAGE NO.1
This report presents the result of a preliminary site
characterization performed by WILSON & ASSOCIATES, INC. (W&A) at
the above referenced site. The purpose of the characterization was
to assess the lateral and vertical extent of soil impacted by
gasoline hydrocarbons associated with a former 550 gallon
underground gasoline storage tank removed from the property on
December 17, 1991 by CALPI, INC. of Bakersfield, California. A
concentration of Total Purgeable Hydrocarbons (TPH) as gasoline was
detected at 810 mg/kg, and 10,000 mg/kg at depths of two and six
feet beneath the former tank. Toluene was detected at 170 mg/kg,
and 275 mg/kg at depths of two and six feet beneath the tank. See
attached laboratory results. The concentrations of TPH as gasoline
and the gasoline constituent volatile aromatics detected in the
samples from beneath the tank are in excess of Regional Water
Quality Control Board (RWQCB) recommended guidelines, and resulted
in the Lead Implementing Agency (LIA) which is the City of
Bakersfield Fire Department - Hazardous Materials Division
requesting that an initial site characterization consisting of soil
borings and laboratory analysis of soil samples be performed to
assess the vertical and lateral extent of gasoline impacted soil in
the vicinity of the former underground gasoline storage tank. The
fuel dispenser was located directly above the tank, and therefore
no additional soil samples were required at this !ocation.~
The scope of work for this project developed in conjunction
with Mr. Joe Dunwoody of the City of Bakersfield Fire Department.
- Hazardous Materials DivisiOn. In addition, remedial action
alternatives are presented. Work performed to date includes the
following:
* Development of site health and safety, and technical Work
plans.
Drilling and sampling of si:~ exploratory soil borings to
a maximum depth of 90 feet below surface grade.
Laboratory analysis of nineteen selected soil samples for
Total Purgeable Hydrocarbons as gasoline, and the
gasoline constituent volatile aromatics.
Preparation of this report presenting our
conclusions, recommendations, and remedial
alternatives for the site.
results,
action
PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
PAGE NO.2
1.1 Site DescriDtion
The subjec~ site is located on the south side of Eureka Street
in the.City of Bakersfield, Kern County, California. The site was
used as a commercial "Sheet Metal Facility". The underground fuel
tank was used to provide fuel for the service trucks.
The site is situated within a developed urban and commercial
area. Nearby properties are primarily commercial businesses along
both sides of Eureka Street, and residential areas to the south.
The overall site topography is essentially flat.
1.2 Backqround .
Based on a review of analytical results, a 550. gallon
underground gasoline storage tank, and dispenser located directly.
above the tank were removed under City of Bakersfield Permit Number
BP0031 from the above referenced property. Reportedly, no soil was
removed from the site during removal of the tanks.
Soil samples were collected at depth of two and six feet from
beneath the removed tanks. The samples from beneath the gasoline
were analyzed for the presence of total purgeable hydrocarbons
(TPH) s gasoline, and the gasoline'constituent volatile aromatics
(BTEX). Gasoline was detected at 810 mg/kg, and 1,000 mg/kg at
depths of two and six feet beneath the former tank. Benzene was
detected in the two samples at 4.4 mg/kg and 98 mg/kg at depths of
two and six feet. Toluene was detected at 170 mg/kg, and 275 mg/kg'
at depths of two and six feet beneath the tank. Ethyl benzene was
detected at 19 mg/kg, and 170 mg/kg at depths of two and six feet
beneath the tank. The concentration of TPH as gasoline and the
gasoline constituent volatile aromatics detected in the soil
samples from bel%eath the tank are in excess of Regional Water
Quality Control Board (RWQCB) recommended guidelines, and resulted
in the Lead Implementing Agency (LIA) which is the City of
Bakersfield Fire Department - Hazardous Materials Division
requesting that an initial site characterization consisting of soil
borings and laboratory analysis of soil samples be performed to
assess the vertical and lateral extent of gasoline impacted soil in
the vicinity of the former underground gasoline storage tank. The
fuel dispenser was located directly above the tank, and therefore
no additional soil samples were required at this location.
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
PAGE NO.3
Based on these analytical results WILSON & ASSOCIATES, INC.
has been retained by John McCauley to perform a site
characterization in the vicinity of the former gasoline tank.
Below are the results of the site characterization. ~
2.0
METHODS OF INVESTIGATION
2.1 Drillinq and Soil SamDling
Prior to commencing field operations, a technical work plan
was reviewed and approved by City of Bakersfield Fire Department -
Hazardous Materials Division personnel. Underground Service Alert
was no%ified 48 hours in advance of the site activities. Drilling
commenced on March 19, 1992 using a CMETM B-75 truck mounted drill
rig, operated by Soils Engineering, Inc. of Bakersfield,
California, and equipped with six 3/4-inch diameter hollow-stem
augers. The augers were steam cleaned prior to use to minimize the
possibilitY of cross-contamination.
A total of six borings were drilled within this phase of soil
characterization. One soil boring, B-1 was drilled through the
approximate "center" of the tank excavation to a depth of ninety
feet. A second soil boring, B-2, was drilled on'the south edge of
the tank excavation to a depth of thirty feet. A third soils
boring, B-3, was drilled southeast of the tank excavation to a
depth of forty feet. The fourth soil boring B-4, was drilled'
southwest of the tank excavation to a depth of forty feet. Boring
number five, B-5, was drilled northwest of the tank excavation to
a depth of forty feet. The sixth boring, B-6, was drilled
northeast of the tank excavation to a depth of forty feet.
Soil samp!e~ were collected at 5-foot intervals in each of the
borings using a split-spoon sampler (ASTM D 3550 with shoe similar
to ASTM D 1586) equipped with three 6-inch by 2.5-inch diameter
stainless steel sleeves for soil retention. The soil samples were
obtained by driving the sampler with a 140-pound hammer dropping 30
inches in accordance with ASTM D 1586.
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'1.
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
PAGE NO.4
The lowermost sleeve at each sample intervals was screened for
total organic vapors with a photo-ionization detector (PID).
Headspace vapor' analysis was performed by first discarding a
portion of the soil retained at one end of the sleeve to produce a
headspace. The sleeve was then capped and the probe of the PID was
inserted through a hole in the cap and into the headspace for
analysis. The PID readings are recorded on the boring logs.
The middle sample sleeve was immediately transferred to a
glass jar, capped, security taped, labeled, and placed on ice for
transportation to a California Department of Health Services (DOHS)
certified laboratory. Strict chain of custody procedures were
utilized for all samples collected to ensure sample integrity and
to document sample possession from the time of collection to the
final destination.
Ail sampling equipment was washed with TSP (tri-sodium
phosphate) cleanser, and rinsed with tap water and de-ionized water
pri~r to'sampling, between sample intervals, and between borings to
minimize the possibility of cross-contamination. The drill auger
was steam cleaned between borings, also to minimize the possibility
of cross-contamination. Contaminated drill cuttings and soil
sample spoils were stored in D.O.T. approved 55-gallon drums,
sealed, and left on-site pending appropriate disposal. After
drilling, the borings were backfilled with a 2 sack cement, sand,
and bentonite clay grout to seal the abandoned boreholes.
2.2 Laboratory Analysis
Nineteen samples were selected for analysis based on: a)
observations and greatest PID readings of odorous soil, b)
observations and PID readings of the first encountered sampling
locations containing apparently uncontaminated soils, which would
Serve to define the lateral and vertical extent of contamination,
and c) requirements that the two lowermost samples of each boring
which detects gasoline hydrocarbons be submitted for analysis. The
nineteen samples were analyzed at BC Laboratories for benzene,
toluene, ethyl benzene and total xylenes (BTEX) by the USEPA Test
Method 8020, and total purgeable hydrocarbons (TPH) as gasoline by
the DOHS LUFT Manual Method.
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PRELIMINARY SITE CHARACTERIZATION
'CALIFORNIA SHEET METAL
SEPTEMBER 1992 .-
PAGE NO.5
3.0 REsuLTs OF'ENVIRONMENTAL ASSESSMENT
~3.1 Sub-Soii'Conditions
Regional Geology: The site is located in the southern part of
the Great Valley. The Great Valley is a north-south trending
valley, approximately 400 miles long by 50 miles wide. Surface and
groundwater in the San Joaquin Valley is derived predominantly from
the Sierra Nevada mountain range to the east, and is transported by
five major rivers, the southern most being the Kern River. The
subject site is located approximately three miles south of the Kern
River.
Site Soils: Soil deposits in the study area include alluvial
sediments of the Kern River Formation, which dip to the southwest.
The deposits are alluvium consisting of poorly graded fan deposits.
The depth to the regional unconfined aquifer is approximately
200 feet below surface grade beneath the site with the direction of
groundwater flow to the south (Kern County Water Agency,
Improvement District No. 4, 1991 Report on Water Conditions,
February, 1992). The nearest known occurrence of perched
groundwater is 2 miles to the southwest at a depth of 20 feet in
the abandoned Kern River channel to.~he ancient Kern Lake Bed (Kern
County Water Agency, 1991 Water Supply Report, May, 1992). No
perched groundwater is known to exist beneath the subject site.
3.2 Subsurface Conditions
Subsurface material encountered during drilling included
artificial fill in the former tank pit underlain by alluvium to the
total depth of each boring. The artificial fill was encountered in
the upper portion of.boring B-1 from the surface to approximately
10 feet. The fill consisted of a medium brown, silty sand (SM).
3.3 ~ydrogeology
Groundwater was not encountered in any of the borings drilled
during this project. The project to the regional unconfined
aquifer is approximately 200 feet below surface grade beneath the
site with the direction of groundwater flow to the south (Kern
County Water Agency, Improvement District No. 4, 1992 Report on
Water Conditions, February, 1992). The nearest known of perched
groundwater is 2 miles to the southwest at a depth of 20 feet in
the abandoned Kern River channel to the ancient Kern Lake Bed (Kern
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992 '
PAGE NO.6
County Water Agency, 1991 Water Supply Report, May, 1992). No
perched groundwater is known to exist beneath the subject site.
3.4 Soil Vapor'MonitorinG
Soil samples collected during drilling were monitored with a
photo-ionization detector (PID) to evaluate organic vapor
concentrations. The PID was calibrated with an isobutylene
standard of 100 per million (ppm) and contained an 11.8 electron
volt (eV) lamp, .capable of detecting benzene (9.25 eV). Boring
Logs presents the PID readings as they were recorded in the field.
3.5 Laboratory Analytical Results
Boring B-1 was advanced through the center of the former 550
gallon tank where (TPH) as gasoline were detected at 6,000 mg/kg at
5 feet and 15 feet, at 3,100 mg/kg at 30 feet, at 3,000 mg/kg at 45
feet and 18,000 mg/kg at 60 feet. TPH as gasoline was not detected
at 75 feet, 80, 85 and 90 feet. TPH wad detected in Boring B-2 at
12,000 mg/kg at 15 feet and at 400 mg/kg at 30 feet. TPH as
gasoline was detected in Boring B-3 at 30,000 mg/kg at 25 feet.
TPH as gasoline was detected in Boring B-5 at 7,000 mg/kg at a
depth of 40 feet. TPH as gasoline. was not detected at 30 and 40
feet in B-4, at 15 feet in B-5 and at depths of 20, 30 and 40 feet
in B-6.
The gasoline constituent volatile aromatic benzene was-
detected in eight of the nineteen samples analyzed. Benzene was
detected in; Boring B-1 at 5 mg/kg at 45 feet, !10 mg/kg at 60 feet
and 0.084 mg/kg at 90 feet, Boring B-2 at 1,000 mg/kg at 15 feet
and 0.2 mg/kg at 30 feet, Boring B-3 at 400 mg/kg at 30 feet,
Boring B-5 at 0.011 mg/kg at 35 feet and 42 mg/kg at 40 feet.
Benzene was not detected in B-1 at depths of 5, 15, 30, 75 80 and
85 feet, B-2 at depths of 30 feet, and 40 feet, B-6 at depths of
20, 30 and 40 feet.
Toluene was detected in thirteen of the nineteen samples.
Toluene was detected in; Boring B-1 at 210 mg/kg at 5 feet, 390
mg/kg at 15 feet, 86 mg/kg at 30 feet, 160 mg/kg at 45 feet, 1,300
mg/kg at 60 feet, 0.047 mg/kg at 85 feet, 0.16 mg/kg at 90 feet,
Boring B-2 at 1,500 mg/kg at 15 feet, 1.2 mg/kg at 30 feet, Boring
B-3 at 3,400 mg/kg at 25 feet, Boring B-5 at 0.017 mg/kg at 15
feet, 540 mg/kg at 40 feet, Boring B-6 at 0.008 mg/kg at 40 feet.
Toluene was not detected in Boring B-1 at 75 and 80 feet~ B-4 at 30
and 40 feet, B-6 at 20 and 30 feet.
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992·
PAGE NO.7
Ethyl benzene was detected in ten of the nineteen samples~
analyzed. Ethyl benzene was detected in; Boring B-1 at 50 mg/kg at
5 feet, 170 mg/kg at 15 feet, 71 mg/kg at 30 feet, 75 mg/kg at 45
feet, 3.00 mg/kg at 60 feet and 0.049 mg/kg at 90 feet, Boring B-2
at 340 mg/kg at 15 feet, 4.7 mg/kg at 30 feet, Boring B-3 at 800
mg/kg at 35 feet, Boring B-5 at 160 mg/kg at 40 feet. Ethyl
benzene was not detected in Boring B-1 at 75, 80 and 85 feet,
Boring B-4 at 30 and 40 feet, B-5 at 15 feet, B-6 at 20, 30 and 40
feet.
Due to the presence of "gasoline" in the soil, selected
samples were analyzed for Lead. Lead was detected in B-1 at 5 feet
at 39 mg/kg (TTLC) and 2.7 mg/1 (STLC), at 30 feet at 4.5 mg/kg
(TTLC) at 85 feet at 4.5 mg/kg, at B-2 at 30 feet at 3.9 mg/kg, at
B-6 at 20 feet at 3.6 mg/kg and at 40 feet at 8.5 mg/kg.
Regional Water Quality Control Board recommended guidelines
for gasoline, and the gasoline constituent volatile aromatics,
benzene, toluene, recommended and total xylenes have been
calculated using the LUFT methodology by multiplying the most
stringent current federal or state water quality standards by a
factor of 1,000~ to account for attenuation due to site-specific
parameters including vertical separation to ground water, soil
lithology, fractures in subsurfaces, annual average precipitation,
and any direct conduits to ground'water. The limits are 1,000
mg/kg for TPH as gasoline, 1.0 mg/kg for benzene'and toluene, and
50 mg/kg for ethyl benzene and total xylenes.
4.0 CONCLUSIONS
The data obtained from the field operations suggest'that soil
impacted with gasoline hydrocarbons, and the gasoline constituent
volatile aromatics at concentrations in excess of RWQCB recommended
guidelines exists at the subject site in the area directly beneath
the former 550 gallon underground gasoline storage tank to a depth
of 60-75 feet, and laterally of approximately 35 feet. The
estimated volume of soil with concentrations of gasoline
hydrocarbons in excess of 1,000 mg/kg, and volatile aromatics in
excess a their respective recommended guidelines is 6,000 cubic
yards.
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL.
SEPTEMBER 1992
PAGE NO.8
4.1 Remedial' ActiOn Alternatives
At least four options for remediation of the soil are
applicable to the site 1) excavation and transportation of soil to
an approved landfill or recycling facility, 2) in-situ vapor
extraction, 3). excavation and uncontrolled aeration, and 4) no
action. ~
In the first action, impacted soil would be excavated and
transported to a suitable disposal site or recycling firm. Due to
the depth of the contaminated soil we believe that the existing
means of excavation would not be suitable for this site.
The next option is to treat the soil through in-situ vapor
extraction. Wells are drilled into the impacted soil. The
hydrocarbon vapors are extraction and treated as a unit such as a
thermal oxidizer. We believe that three wells would effectively
extract 'the gasoline hydrocarbons, and the time frame for
successful treatment would be approximately six to nine months.
The cost for installing the wells and below ground manifolding
would be approximately $32,000.00. The monthly cost rental of an
extraction unit will be approximately $8,500.00/month, or $42,5000
for five months, including the cost of electricity, and/or
supplemental fuel. Verification, soil sampling and system
abandonment would be approximately $17,300. Management fees
including Work Plans, regulatory liaison, supervision, reports,
etc. will be approximately $10,000. The overall cost is estimated
to be $101,800. However, we belieVe that additional borings will
be necessary to further define the lateral extent of the-
contamination..
The third option is to excavate ~he soil and "aerate" on-site.
Again due to the depth of the contamination we believe that
excavation of the soil is not acceptable.
The fourth option is to leave the site "as-is" and allow
natural in-situ biodegradation to occur. Due to the high
concentrations of gasoline and the gasoline constituent volatile
aromatic we believe that there is a "risk" of leaking hydrocarbons
to qroundwater, which is at a depth of approximately 200 feet.
Long term monitoring of the hydrocarbons may be required at
additional costs.
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PRELIMINARY SITE CHARACTERIZATION
.CALIFORNIA SHEET METAL
SEPTEMBER 1992 · . ~'__
5 · 0 RECOMMENDATIONS
PAGE NO.9
WILSON AND ASSOCIATES, INC. would recommend that two
additional borings be completed in order to assess the lateral
extent of the contamination. One boring would be located southwest
of Boring B-3, and another boring would be located northwest of
Boring B-5. At the completion of the laboratory analysis. W&A
would prepare a Work Plan for implementation of a vapor extraction
system, . ·, ,~.~i-.~i~,:~.- ~ ~. ~..... .~-'
6.0 CLOSURE '.
This report has been prepared for the exclusive use of the John
McCauley as it pertains to the location of the former gasoline tank
at 601 Eureka Street, Bakersfield, California. The conclusions and
recommendations.rendered are opinions based on information obtained
within the scope of work authorized by the client.
This report should not be regarded as a guarantee that no further
contamination, beyond that which may have been detected within the
scope of this study, is present on or beneath the site. If
additional information regarding the possible presence or past use
of hazardous materials at the site becomes available, then the need
for further field investigation should be re-evaluated. Similarly,
if suspected contamination is encountered during earthwork or
construction activities, a qualified engineer or geologist should
be on-site to monitor the soils and collect samples for laboratory
analysis. Work has been performed in accordance with generally
accepted practices in geotechnical ~nd environmental engineering,
engineering geology, and hydrogeology. No other warranty, either
expressed or implied, is made.
Thank you for this opportunity to be of service. If you'have any
questions regarding this ·report or the information contained
herein, please contact this office at your convenience.
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S, ITE PLAN
/, ~,. i_N ~o...~
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,o' /s~: ,"~,o'
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~PPROXIM~T~ LOC~ION OF/
T~HK EXCaVaTION-~ ~ ~PPROXIM~E LIMITS
I /~ o~o~,~,o~.
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R.. WILSON
323 -6460
Sample Description: PROJECT: 601 EUREKA: 1-5'
COLLECTED BY J.R. WILSON
DaLe of
Report: 03/30/92
Lab ~: 2517-1
(SOIL) 03'-19-92 FROM 0800 HRS TO 1530 HRS
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method ~ Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
DaLe Sample
Collected:
03/19/92
Constituents
Date Sample
Received ~ Lab:
03/19/92
Date Analysis
ComDleLed:
03/27/92
Minimum
Analysis Reporting Reporting
Results Units Level
Benzene None Detected mg/kg
Toluene 210. mg/kg
Ethyl Benzene 50. '- mg/kg
o-Xylene 360. mg/kg
m & p-Xylene 600. 'mg/kg
Total Petroleum
Hydrocarbons (gas) 6000. mg/kg
20.
20.
20.
20.
20.
5000.
No~e:
Hi§h reported PQL due ~o hi§h concentrations of tar§et analyzes in sample.
California D.O.H.S. Cert. ~1!86
Department Supe-~vis~
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WILSON & ASSOCIATES
2217 "E" STREET
BA/fERSFIELD, CA 93301
Az~n.: JOHN R. WILSON
323-6460
Date Reported: 03/30/92
Date Received: 03/19/92
Laboratory No.: 2517-t
Page
Sample Description: PROJECT: 601 EUREKA: 1-5' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS
COLLECTED BY J.R. WILSON
TOTA3~ CONTAMINANTS
(Title 22, Article 11, California Code of Regulations)
Regulatory
Criteria
Method STLC TTLC
Constituents Sam~!e Results Units P.Q.L. Method . mq/L mq/kq
ILead 39. mg/kg 4.0 SW-6010 5.0 1000.
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Comment:
P.Q.L. =
STLC =
TTLC =
Ail constituents reported above are in mg/kg (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to determine total levels.
Practical Quantitation Limit (refers ~o the least amount of ana'lyte detectable
based on sample size used and analytical technique employed.
None Detected (ConstituenL, if present, would be less than the method P.Q.L.) .
Soluble Threshold Limit Concentration
To,al Threshold Limit ConcenLration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, September, !986.
Department Supervisor
41 CO ~r~as Cc. · E)aker~eld. C~, ~-~_~C~ · (15~---] ~7~-~c~1 I · F~X (E{2~--I ~27-1 _~1 E)
I
P~C'E./VED
APR 1 7 1992
Wl/_$Ul~ & ~,./6UC. INC.
!
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WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, Cb 93301
Attn.: JOHN R. WILSON
323-6460
Date Reported: 04/14/92
Date Received: 03/19/92
Laboratory No.: 25!7-LADD'N
WET TEST
EXTRACT CONT3LMINANTS A/~ALYZED ACCORDING TO TITLE 22, ~T!CLE 11,
CALIFORNIA CODE OF REGULATIONS FOR HAZARDOUS WASTE DETERMINATION
(STLC)
Sample Description: PROJECT: 601 ELTREKA: 1-5' (SOIL) 03-!9-92 FROM 0800 HRS TO 1530 HRS
COLLECTED BY J.R. WILSON
!
!
ConsTituents
Re_cn/!atory
Sample Results Method Criteria
mq/liter P.Q.L. Method STLC
Lead 2.7 0.5 SW-6010 5.0
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comment:
P.Q.L. =
N.D. =
STLC =
Ail metals reported above are in mg/liter on a filtrate bas~s (STLC) . These
results are based on extracting sample according to Title 22, ArTicle !1,
California Administrative Code using a %8-hour citric acid (deionized water
for hexavalent chromium) extraction.
Practical Quantitation Limit (refers to the least amount of ana!yte detectable
based on sample size used and analytical technique employed.
None Detected (If constituent is present it would be less than the method
P.Q.L. listed to the right.
Soluble Threshold Limit Concentration
REFERENCES:
SW = "Test Methods for Evaluating Solid wastes Physical/Chemical Methods",
SW 846, September, 1986.
Depa-~t~ent Supe-~vis°r 0
41 (/DAUaS ~. · 5Ba~e~elcL ~ S?~C~ · []5~ 327--491 I · F:~. (5~2~ 3~R7-1 91 8
Petroleum Hydrocarbons
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WILSON & ASSOCIATES Date of
2217 "E" STREET Report: 03/31/92
BA/~ERSFIELD, CA 93301 Lab ~: 2517-3
Attn.: JOHN .R. WILSON 323-6460
Sample Description: PROJECT: 601 EUREKA: 1-15' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
TEST MET"HOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/19/92
Constituents
Benzene
Toluene
EThyl Benzene
o-Xylene
m & p-Xy!ene
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received @ Lab:
03/19/92
Date Analysis
Completed:
03/30/92
Minimtun
~alysis Reporting Reporting
Results Units Level
None Detected mg/kg 100.
390. mg/kg !0.
170. .- mg/kg 10.
230. mg/kg 10.
960. mg/kg 10.
6000. mg/kg 2000.
!
,!
Note:
High reported ?QL due ~0 high concentrations of target analy~es in sample.
California D.O.H.S. Cert. ~1!86
Depar~men~ Supe.~visor/
Pearoleum Hydrocarbons
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WILSON & ASSOCIATES Date of
2217 "E" STREET Report: 03/27/92
BAKERSFIELD, CJI 93301 Lab ~: 2517-6
Attn,: JOHN.R. WILSON 323-6460
Sample Description: PROJECT: 601 EUREKA: 1-30' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R, WILSON
TEST METHOD: TPH by D.O.H.S. / L,U.F.T. Manual Me~hod - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
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Sample Matrix: Soil
Date Sample
Collected:
03/19/92
Constituents
Date Sample
Received @ Lab:
03/19/92
Date Analysis
Completed:
03/26/92
Minimum
Analysis Reporting Reporting
Results Units Level
Benzene None Detected mg/kg 2.
Toluene 86. mg/kg 2.
E~hyl Benzene 71. ~- mg/k9 2.
o-Xylene 88. mg/kg 2.
m & p-Xylene 350. mg/k~ 2.
To~al Petroleum
Hydrocarbons (gas) 3100. mg/k9 500.
Note;
High reported PQL due to high concentrations of target analytes in sample.
California D.O.H.S. Cert. ~1186
I
I
Department Supe_~visor
WILSON & ASSOCIATES
2217 "E" STREET
I B;~CERSFIELD, C3% 93301
Attn.: JOHN R. WILSON
323-6460
Date Reported: 04/02/92
Date Received: 03/19/92
Laboratory No.: 2517-6
Page
Sample Description: PROJECT: 601 EUREKA: 1-30' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
!
I
TOT3LL CONT3%MINAI~TS
(Title 22, Article 11, California Code of Regulations)
Regulatory.
Criteria
Method STLC TTLC
Constituents Samule Results Units P.Q.L. Method mc/L mc/kc
ILead
4.5 mg/k9 4.0 SW-6010 5.0 1000.
I Comment:
I P .Q.L. =
I N.D. =
STLC =
All constituents reported above are in mg/kg (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample, subjected to appropriate techniques to determine total levels.
Practical Quantitation Limit'(refers to the least amount of analyte detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the me~hod P.Q.L.).
Soluble Threshold Limit Concent=ation
Total Threshold Limit Concentration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, September, 1986.
Department Supervisor
41 CO ~r.:as C-~. · ~akersfielC. C~ S--~---~ · (~2~] 327-491 1 · ~kX (Et~--q ;3~q7-1 91151
WILSON & ASSOCIATES
i2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R.. WILSON
Petroleum Hydrocarbons
323-6460
Date of
Report: 03/27/92
Lab ~: 2517-9
ISample Description: PROJECT: 601 EUREKA: 1-45' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
ITEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
I Sample
Matrix:
Soil
I Date Sample Date Sample Date Analysis
Collected: Received ® Lab: Completed:
03/19/92 03/19/92 03/26/92
I Analysis Reporting
Constituents Results Units
I Benzene 5. mg/kg
Toluene 160. mg/kg
Ethyl Benzene 75. ~- mg/kg
io-Xylene 140. mg/kg
m & p-Xylene 250. mg/kg
ToTal Petroleum
Hydrocarbons (gas) 3000. mg/kg 1000.
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Minimum
Reporting
Level
5.
5.
5.
5.
Note:
High reported PQL due to high concentrations of target analytes in sample.
California D.O.H.S. Cert. ~!186
Department Supervisor
4100 A~as C:. · ~akersfielC, CA ~SSC__~ · (8C_~ .~27-491 I - ~AX (l~(3b--J 327-1918
WILSON & ASSOCIATES
I 2217 "E" STREET
BAKERSFIELD, CA 93301
A~tn.: JOHN R.~WILSON
Petroleum Hydrocarbons
Date of
Report: 03/31/92
Lab $: 2517-12
323-6460
I Sample DescripEion: PROJECT: 601 EUREKA: 1-60' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.~. WILSON
I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015
Individual cons~iEuen~s by EPA Method 5030/S020.
I Sample Mazrix: Soil
IDate Sample Date Sample Date Analysis
Collected: Received ® Lab: Completed:
03/19/92 03/19/92 03/30/92
I Analysis Reporting
Constituents Results Units
!
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Benzene 110. mg/kg
Toluene 1300. mg/kg
Ethyl Benzene 300. " mg/kg
o~Xylene 460. mg/kg
m & p-Xylene 2100. 'mg/k9
Total Petroleum
Hydrocarbons (gas) 13000. mg/kg
Minimum
Reporting'
Level
20.
20.
20.
20.
20.
5000.
Noue:
High reported PQL due to high concentrations of tarEe~ analytes in sample.
California D.O.H.S. Cart. $1186
Deparumenu Supe?visor
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R.:WILSON
323-6=_60
Date of
Report: 03/30/92
Lab ~: 2517-15
Sample Description: ~ROJECT: 601 EUREKA: 1-75' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
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I
TEST .METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
I
I
I
Sample Matrix: Soil
Date Sample
Collected:
03/19/92
Constituents
Date Sample
Received @ Lab:
03/19/92
Date Analysis
Completed:
03/27/92
~inimum
Analysis Reporting Reporting
Results Units Level
Benzene None Detected mg/kg 0.005
Toluene None Detected mg/kg 0.005
Ethyl Benzene None Detected " mg/kg 0.005
o-Xylene None Detected mg/kg 0.005
m & p-Xylene None Detected mg/kg 0.005
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg %.
California D.O.H.S. Cert..=1186
Department Supervisor
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
Sample Description:
Constituents
Lead
Date Reported: 04/02/92
DaZe Received: 03/19/92
Laboratory No.: 2517-15
Page 1
323-6460
PROJECT: 601 EUREKA: 1-75' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
TOTAL CONTAMINANTS
(Title 22, Article 1!, California Code of Regulations)
Samole Results
None Detected
Units
mg/k'g
Regulatory.
Criteria
Method STLC TTLC
P..Q.L.. Method .mq/L ma/kc
2.5 SW-60!0 5.0 1000.
'1
Ii Commen~:
Ii P .Q.L. =
Ii N. D. =
STLC =
.-~ TTLC =
Ail constituents reported above are in mg/kg (unless ozherwise stated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to determine total levels.
Praczical Quantitation Limit (refers to the least amoun~ of ana!yte detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.) .
Soluble Threshold Limit Concentration
Total Threshold Limit Concentration
REFERENCES:
SW = "Test Me~hods for Evaluazing Solid Wastes Physical/Chemical Me~hods",
SW 846, Sep~en%ber, 1986.
Department S,~pervisor
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WILSON & ASSOCIATES
2217 "E" STREET
BA/KERSFIELD, CA 93301
Attn.: JOHN R.. WILSON
Petroleum Hydrocarbons
323-6460
Date of
Report: 03/31/92
Lab ~: 2517-16
Sample Description: PROJECT: 601 EUREKA: 1-80' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/19/92
Constituents
Date Sample
Received ® Lab:
03/19/92
Date Analysis
Completed:
03/30/92
Analysis Reporting
Results Units
Minimum
Reporting
Level
Benzene None Detected mg/kg 0.005
Toluene None Detected mg/kg 0.005
Ethyl Benzene None Detected mg/kg 0.005
o-X¥!ene None Detected mg/kg 0.005
m & p-Xylene None Detected mg/kg 0.005
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg 1.
California D.O.H.S. Cert. $1186
Depar~men~ Supervisor
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, C.A 93301
AC=n.: ' JOHN R.' WILSON
Petroleum Hydrocarbons
Date of
Report: 03/31/92
Lab ~: 2517-17
323 -6460
ISample DescripTion: PROJECT: 601 EUREKA: 1-85' (SOIL) 03-!9-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
I TPH D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
TEST
~/ETHOD:
by
Individual constituents by EPA Method 5030/8020.
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Sample Matrix: Soil
Date Sample
Collected:
03/!9/92
Constituents
Benzene
Toluene ·
Ethyl Benzene
o-Xylene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received ® Lab:
03/19/92
Da=e A~alysis
Completed:
03/30/92
Minimum
Analysis ReDorting Reporting
Results Units Level
None Detected mg/kg 0.005
0.047 ~. mg/kg 0.005
None Detected mg/kg 0.005
None Detected mg/kg 0.005
0.014 mg/kg 0.005
None Detected mg/kg 1.
California D.O.H.S. Cert. ~1186
Depar~men~ Supervisor
41 m ~.r]as Cz. · 8akers~elo. CA c-~--..~2~8 · (805] ~f~7-4~ 11 - FAX ~ 327-1918
WILSON & ASSOCIATES
2217 "E" STREET
BA/fERSFIELD, CA 93301
Attn.: JOHN ~. WILSON
323-6460
Date Reported: 04/02/92
Date Received: 03/19/92
Laboratoz-y No.: 2517-17
Page 1
I Sample Description: PROJECT: 601 EUREK3~: 1~85' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
TOTAL CONT3%MINA/qTS
(Title 22, krticle 1!, California Code of Regulations)
Regulatory
I Criteria
Method STLC TTLC
Constituents Sample Results Units ~ Method ma/L m~/~
I Lead 4.5 mg/kg 2.5 SW~60!0 5.0 1000.
Comment:
All constituents reported above are in mg/kg (unless otherwise .~tated) on
an as received (wet) sample basis. Results reported represent totals
(=LC) as sample subjected to appropriate techniques to determine total levels.
P.Q.L. = Practical Quantitation Limit (refers to the least amount of analyte detectable
based on sample size used and analytical technique employed.
Ii N.D. = None Detected (Constituent, if present, would be less than the method P.Q.L.).
STLC = Soluble Threshold Limit Concentration
'- TTLC = Total Threshold Limit Concentration
!!REFERENCES:
Sw = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, September, 1986.
Department Supervisor
41 CO Atlas Cc. · 8akers~elcL C-~ 93308. (SOb-q -~27-~91 I · F'~.X (SC~ 327-1918
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WILSON & ASSOCIATES
2217 "E" STREET
BA/CERSFIELD,. CA 93301
Attn.: JOHN R. WILSON
Petroleum Hydrocarbons
323-6460
Date of
Report: 04/06/92
Lab ~: 2576-1
Sample Description: CALIF. SHEET PIETAL: 1 90' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.~. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. F~nual Method - Modified EPA 8015
Individual constituents by EPA MeT_hod 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Constituents
Date Sample
Received ~ Lab:
03/23/92
Date Analysis
Completed:
04/05/92
Analysis Reporting
Results Units
Minimum
Reportin9
Level.
Benzene 0.084 mg/kg 0.005
Toluene 0.16 mg/kg 0.005
Ethyl Benzene 0.049 '~ mg/kg 0.005
o-X¥1ene 0.026 mg/kg 0.005
m & p-Xylene 0.062 mg/kg 0.005
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg 1.
California D.O.H.S. Cert. $!186
Depar~men~ Supe_~vi~or
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD,. CA 93301
Attn.: JOhN R. WILSON
323-6460
Date of
Report:. 04/06/92
Lab ~: 2576-2
Sample Description: CALIF. SHEET METAL: 2 15' (SOIL) 03-20-92 FROM 0800 TO !700
COLLECTED BY J.K. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil.
Date Sample
Collected:
03/20/92
Constituents
Date Sample
Received @ Lab:
03/23/92
Date Analysis
Completed:
04/05/92
Analysis Reporting
Results Units
Minimum
Reporting
Level
Benzene ,, 1000. mg/kg 5.
Toluene 1500. mg/kg 5.
Ethyl Benzene 340. mg/kg 5.
o-Xylene 480. mg/kg 5.
m & p-Xylene 2000. mg/kg 5.
Total Petroleum
Hydrocarbons (gas) 12000. mg/kg 1000.
High reported PQL due to high concentration of target analy~es.
California D.O.H.S. Cert. ~1186
Department Supe_~visor
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
323-6460
sample Description: CALIF. SHEET ~ETAL: 2 30'
COLLECTED BY J.R. WILSON
Date of
Report: 04/06/92
Lab ~: 2576-4
(SOIL) 03-20-92 FROM 0800 TO 1700
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Date Sample
Received ® Lab:
03/23/92
Date Analysis
Completed:
04/05/92
Analysis Reporting
Constituents Results Units
Benzene 0.2 mg/kg
Toluene 1.2 mg/kg
Ethyl Benzene 4.7 ~' mg/kg
o-Xytene 39. mg/kg
m & p-Xylene 10. mg/kg
Total Petroleum ·
Hydrocarbons (gas') 400. mg/kg
Minimum
Reporting
Level
'0.1
0.1
0.1
0.1
0.1
200 .
High reported PQL due to high concentrations of target analyses.
.California D.O.H.S. Cert. ~!186
Debar=menS SuDe.~-vi sot
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WILSON &ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHI~ R. WILSON
323-6460
Date Reported: 04/03/92
Date Received: 03/23/92
Laborator2; No.: 2576-4
Page
Sample Description: CALIF. SHEET 5IET3LL: 2 30' (SOIL 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TOTAL CONTAMINAbVES
(Title 22, Article 11, California Code of Regulations)
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Method
Constituents Sample Results Units P.Q.L. Method
Lead 3.9 mg/kg 3.5 SW-6010
Regulator2;
Criteria
S ~"~LC TTLC
m~/L m~./kq
5.0 1000
Comment:
P.Q.L. =
N.D. =
STLC =
TTLC --
All constituents reported above are in mg/kg (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected =o appropriate techniques to determine total levels.
Practical Quantitation Limit (refers to the least amount of analyte detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.) .
Soluble Threshold Limit Concentration
Total Threshold Limit Concentration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, September, 1986.
Deparument Super~isor
4100Al~a$ C~..· Bske~-ffie{c~. CA o~. (~112~JS~91 I · FAX(805') 327-q 918
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN:R. WILSON
323-6460
Date of
Report: 04/02/92
Lab $: 2576-6
Sample Description: CALIF. SHEET METAL: 3 25' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Constituents
Date Sample
Received ® Lab:
03/23/92
Date Analysis
Completed:
04/0!/92
Minimum
Analysis Reporting Reporting
Results Units Level
Benzene 400. mg/kg 100.
Toluene 3400. mg/kg !00.
Ethyl Benzene 800. mg/kg !00.
o-Xylene 1500. mg/kg 100.
m & p-Xylene 2700. mg/kg 100.
Total Petroleum "
Hydrocarbons (gas) 30000. mg/kg 20000.
High reported PQL due to high concentrations of target analytes in sample.
· California D.O.H.S. Cert. $1186
Department Supez-~isor
4100A~as ~ · 8aker~el~. CA 9cC3C8 · L~CS) 327~4911 ·
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
323-6460
Date of
Report: 04/07/92
Lab ~: 2576-7
Sample 'Description: CALIF. SHEET METAL: 4 30' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Cons~it-uents
Benzene
Toluene
Ethyl Benzene
o-Xylene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received ~ Lab:
03/23/92
Date Analysis
Completed:
04/06/92
Minimum
Analysis Reporting Reporting
Results Units Level
None Detected mg/kg 0.005
None Detected mg/kg 0.005
None Detected mg/kg 0.005
None Detected ~' mg/kg 0.005
None Detected mg/kg 0.005
None Detected .. mg/kg 0.!
California D.O.H.S. Cert. ~1186
Department Supez-visor
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Petroleum Hydrocarbons
WILSON & ASSOCLATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: jOHN R. WILSON
323-6460
Sample Description: CALIF. SHEET METAL:
COLLECTED BY J.R. WILSON
Date of
Report: 04/01/92
Lab ~: 2576-8
(SOIL) 03-20-92 FROM 0800 TO 1700
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Constituents
Benzene
Toluene
Ethyl Benzene
o-X¥!ene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received @ Lab:
03/23/92
Date Analysis
Completed:
03/31/92
Analysis Reporting
Results Units
None Detected mg/kg
None Detected mg/kg
None Detected '- mg/kg
None Detected mg/kg
None Detected mg/kg
None Detected mg/kg
Minimum
Reporting
Level
0.005
0.005
0.005'
0.005
0.005
. California D.O.H.S. Cert.
Depar~men~ Super-Tisor
41COA~as Cts.· Baker~fielcl, CA c -~1~_- · (80~ 3~7~4911 · ~AX (5C5) ~--o7-1918
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BA/CERSFIELD,. CA 93301
Attn.: JOHI~ R. WILSON
323-6460
Sample Description:
CALIF. SHEET METAL: 5 15'
COLLECTED BY J.R. WILSON
Date of
Report: 04/07/92
Lab #: 2576-11
(SOIL) 03-20-92 FROM 0800 TO 1700
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Me~hod - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Constituents
Benzene
Toluene
Ethyl Benzene
o-Xy!ene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
DaZe Sample
Received $ Lab:
03/23/92
Date Analysis
Completed:
04/06/92
Analysis Reporting
Results Units
0.011 mg/kg
0.017 mg/kg
None Detected ~' mg/kg
None Detected mg/kg
None Detected mg/kg
None Detected mg/kg
Minimum ,
Reporting
Level
0.005
0.005
0.005
0.005
0.005
.California D.O.H.S. Cert. =,1186
Department Supervisor
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Petroleum Hydrocarbons
wILSON & ASSOCr_J%TES
2217 "E" STREET
BAKERSFIELD, CJI 93301
AtTn.: JOHNR. WILSON
Date of
Report: 04/02/92
Lab ~: 2576-10
323-6460
Sample Description:
CALIF. SHEET MET3LL: 5 - 40' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.0.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA ~ethod 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Constituents
Da~e Sample
Received @ Lab:
03/23/92
Date Analysis
Completed:
04/01/92
~inimum
Analysis Reporting Reporting
Results Units Level
Benzene 42. mg/k9 5.
Toluene 540. mg/k9 5.
Ethyl Benzene 160.
o-Xylene 300. m~/k9
m & p-Xylene 510. mg/k~ 5.
Total Petroleum
Hydrocarbons (gas) 7000. m~/k9 2000.
High reported PQL due to high concentrations of target analytes in sample.
California D.O.H.S. Cert. ~!186
Department Supez-visor
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Petroleum Hydrocarbons
wILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
323-6460
Date of
Report: 04/02/92
Lab 5: 2576-12
Sample Description: CALIF. SHEET METAL: 6 20' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample Date Sample ~ Date Analysis
Collected: Received ® Lab: Completed:
03/20/92 03/23/92 04/01/92
Constituents
Benzene
Toluene
Ethyl Benzene
o-Xy!ene
m & p-Xylene
Total Petroleum
Hydrocarbons (~as)
Analysis
Results
None Detected
None Detected
None Detected
None Detected
None Detected
None Detected
Reporting
Units
ms/kg
ms/kg
ms/kg
mg/kg
ms/kg
ms/kg
Minimum
Reporting
Level
0.005
0.005
0.005
0.005
0.005
California D.O.H.S. Cert. ~=I!86
Department Supervisor
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WILSON & ASSOCIIXTES Date Reported: 0~./03/92 Page !
22!7 "E" STREET Date Received: 03/23/92
5AKERSFIELD, CA 93301 Laboratory No.: 2576-12
Attn.: JOHN R. WILSON 323-6460
Sample Description: CA~,IF. SHEET I~ET3tL: 6 - 20' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TOT_~L CONTAMINANTS
(Title 22, Article 1!, California Code of Regulations)
Regulatory
Criteria
Method STLC TTLC
Constituents SamDle Results Units P.Q.L. Method mq/L 'mc/k~
Lead 3.6 mg/kg 3.5 SW-6010 5.0 1000.
Comment:
P.Q.L. =
STLC =
TTLC =
Ail constituents reported above are in mg/kg (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to determine total leve!sJ
Practical Quantitation Limi~ (refers to the least amount of analyte detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.).
Soluble Threshold Limit Concentration
Total Threshold Limit Concentration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, September, 1986.
Department Supervisor
41 O0 ~as Cz.. · 5)aker~elc~, C~ ~ · (5)22~ 327~491 I · F~X ~ ~:~7-1 91B
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN' ~. WILSON
323-6460
Date of
Report: 04/07/92
Lab ~: 2576-13
Sample Description: CALIF. SHEET METAL: 6 30' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
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TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Constituents
Date Sample
Received @ Lab:
03/23/92
Date Analysis
Completed:
04/06/92
Analysis Reporting
Results Units
Reporting
Level
Benzene None Detected mg/kg 0.005.
Toluene None Detected mg/kg 0.005
Ethyl Benzene None Detected " mg/kg 0.005
o-Xylene None Detected mg/kg 0.005
m & p-Xylene None Detected mg/kg 0.005
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg 1.
California D.O.H.S. Cert. ~=1!86
Deparumenz Super~zis6r
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
'Attn.: JOHN ~. WILSON
323-6460
Date of
Report: 04/02/92
Lab ~: 2576-10
Sample Description:
CALIF. SHEET METAL: 5 40' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.0.H.S. / L.U.F.T. Manual Method Modified EPA 8015
Individual constituents hy EPA Method 5030/8020.
Sample Matrix: Soil
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Date Sample
Collected:
03/20/92
Constituents
Date Sample
Received @ Lab:
03/23/92
Date Analysis
Completed:
04/0!/92
Minimum
Analysis Reporting Reporting
Results Units Level
Benzene 42. mg/kg 5.
Toluene 540. mg/kg 5.
Ethyl Benzene 160. " mg/kg 5.
o-Xytane 300. mg/kg 5.
m & p-Xylene 510. mg/kg 5.
Total Petroleum
Hydrocarbons (gas) 7000. mg/kg 2000.
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High reported PQL due to high concentrations of target analytes in sample.
California D.O.H.S. Cart. ~1~86
Depar~men~ Supervisor
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD,. CA 93301
Attn.: JOHN R. WILSON
323-6460
Date of
Report: 04/02/92
Lab ~: 2576-12
Sample Description: CALIF. SHEET MET3%L: 6 20' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
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TEST ~?HOD: TPH by D.0.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
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Date Sample
Collected:
03/20/92
Constituents
Benzene
Toluene
Ethyl Benzene
o-Xylene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received ® Lab:
03/23/92
Analysis
Results
None Detected
None Detected
None Detected
None Detected
None Detected
None Detected
Date Analysis
Completed:
04/01/92
Reporting
Units
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
Minimum
Reporting
Level
0.005
0.005
0.005
0.005
0.005
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California D,O.H.S. Cert. $1186
Department Supe_~zisor
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTE/~BER 1992
PAGE NO.1
1.0 INTRODUCTION
This report presents the result of a preliminary site
characterization performed by WILSON & ASSOCIATES, INC. (W&A) at
the above,referenced site. The purpose of the characterization was
to assess the lateral and vertical extent of soil impacted by
gasoline hydrocarbons associated with a former 550 gallon
underground gasoline storage tank removed from the property on
December 17, 1991 by CALPI, INC. of Bakersfield, California. A
concentration of Total Purgeable Hydrocarbons (TPH) as gasoline was
detected at 810 mg/kg, and 10,000 mg/kg at depths of two and six
'feet beneath the former tank. Toluene was detected at 170 mg/kg,
and 275 mg/kg at depths of two and six feet beneath the tank. See
attached laboratory results. The concentrations of TPH as gasoline
and the gasoline constituent volatile aromatics detected in the
samples from beneath the tank~ are in excess of Regional Water
Quality Control Board (RWQCB) recommended guidelines, and resulted
in the Lead Implementing Agency (LIA) which is the City of
Bakersfield Fire Department - Hazardous Materials Division
requesting that an initial site characterization consisting of soil
borings and laboratory analysis of soil samples be performed to
assess the vertical and lateral extent of gasoline impacted soil in
the vicinity of the former underground gasoline storage tank. The
fuel dispenser was located directly above the tank, and therefore
no additional soil samples were required at this location.
The scope of work for this project developed in conjunction
with Mr. Joe Dunwoody of the City of Bakersfield Fire Department
- Hazardous Materials Division. In addition, remedial action
alternatives are presented. Work performed to date includes the
following:
Development of site health and safety, and technical work
plans.
Drilling and sampling of six exploratory soil borings to
a maximum depth of 90 feet below surface grade.
Laboratory analysis of nineteen selected soil samples for
Total Purgeable Hydrocarbons as gasoline, and the
gasoline constituent volatile aromatics.
Preparation of this report
conclusions, recommendations,
alternatives for the site.
presenting our results,
and remedial action
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
PAGE NO.2
1.! Site Description
The subject site is located on the south side of Eureka Street
in the C.ity of Bakersfield, Kern County, California. The site was
used as a~commercial "Sheet Metal Facility". The underground fuel
tank was used to provide fuel for the service trucks.
The site is situated within a developed urban and commercial
area. Nearby properties are primarily commercial businesses along
both sides of Eureka Street, and residential areas to the south.
The overall site topography is essentially flat.
1.2 Background
Based on a review of amalytical results, a 550 gallon
underground gasoline storage tank, and dispenser located directly
above the tank were removed under City of Bakersfield Permit Number
BP003! from the above referenCed property. Reportedly, no soil was
removed from the site during removal of the tanks.
Soil samples were collected at depth of two and six feet from
beneath the removed tanks. The samples from beneath the gasoline
were analyzed for the presence of total purgeab!e hydrocarbons
(TPH) s gasoline, and the gasoline constituent volatile aromatics
(BTEX). Gasoline was detected -at 810 mg/kg, and 1,000 mg/kg at
depths of two and six feet beneath the former tank. Benzene was
detected in the two samples at 4.4 mg/kg and 98 mg/kg at depths of
two and six feet. Toluene was detected at 170 mg/kg, and 275 mg/kg
at depths of two and six feet beneath the tank. Ethyl benzene was
detected at 19 mg/kg, and 170 mg/kg at depths of two and six feet
beneath the -tank. T-he concentration of TPH as gasoline and the
gasoline constituent volatile aromatics detected in the soil
samples from beneath the tank are in excess of Regional Water
Quality Control Board (RWQCB) recommended guidelines, and resulted
in the Lead Implementing Agency (LIA) which is the 'City of
Bakersfield Fire Department - Hazardous Materials Division
requesting that an initial site characterization consisting of soil
borings and laboratory analysis of soil samples be performed to
assess the vertical and lateral extent of gasoline impacted soil in
the vicinity of the former underground gasoline storage tank. The
fuel dispenser was .located directly above the tank, and therefore
no additional soil samples were required at this location.
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
PAGE NO.3
Based on these analytical results WILSON & ASSOCIATES, INC.
has been retained by John McCautey to perform a site
characterization in the vicinity of the former gasoline tank.
Below are the results of the site characterization.
2.0 MET~iODS OF II~rESTIGATION
2.1 Drilling and Soil Samp!iDq
Prior to commencing field operations, a technical work plan
was reviewed and approved by City of Bakersfield Fire Department -
Hazardous Materials Division personnel. Underground Service Alert
was notified 48 hours'in advance of the site activities. Drilling
commenced on March 19, 1992 using a CME~ B-75 truck mounted drill
rig, operated by Soils Engineering, Inc. of Bakersfield,
California, and equipped with six 3/4-inch diameter hollow-stem
augers. The augers were steam cleaned prior to use to minimize the
possibility of cross-contamination.
A total of six borings were drilled within tkis phase of soil
characterization. One soil boring, B-1 was drilled through the
approximate "center" of the tank excavation to a depth of ninety
feet. A second soil boring, B-2, was drilled on the south edge of
the tank excavation to a depth of tkirty feet.~ A third soils
boring, B-3, was drilled southeast of the tank excavation to a
depth of forty feet. The fourth soil boring B-4, was drilled
southwest of the tank excavation to a depth of forty feet. Boring
number five, B-5, was drilled northwest of the tank excavation to
a depth of forty feet. The sixth boring, B-6, was drilled
northeast of the tank excavation to a depth of forty feet.
Soil samples were collected at 5-foot intervals in each of the
borings.using a split-spoon sampler (ASTM D 3550 with shoe similar
to ASTM D 1586) equipped with three 6-inch by 2.5-inch diameter
stainless steel sleeves for soil retention. The soil samples were
obtained by driving the sampler with a 140-pound hammer dropping 30
inches in accordance with ASTM D 1586.
WILSON & ASSOCi_kTES
I 2217 "E" STS~EET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
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Sample Description:
Constituents
I Lead
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Date Reported: 0&/03/92
Date Received: 03/23/92
Laboratory No.: 2576-12
Page !
323-6460
CALIF. SHEET F/ETAL: 6 20' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
I
Comment:
TOT~dL COI~fl%F/IN3uNTS
(Title 22, Article !!, California Code of Regulations)
Samole Results
Regulatory
Criteria
Method STLC TTLC
Units P.Q.L. Method mq/L mq/kq
3.6 mg/kg 3.5 SW-6010 5.0 1000.
P.Q.L. =
ii N. D. =
STLC =
~ TTLC =
I
All constituents reported above are in mg/kg (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent ~ouals
(TTLC) as sample subjected to appropriate techniques Uo determine total levels.
I
Practical Quantitation Limit (refers to the least amount of ana!¥te detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.).
Soluble Threshold Limit Concentration
Total Threshold Limit Concentration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, Septet%bet, 1986.
Department Supervisor
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
A~n.: JOHI~ R.~WILSON
323-6460
Date of
Report: 04/07/92
Lab $: 2576-13
Sample Description: CALIF. SheET _WS~TJLL: 6 - 30' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. F~-nua! Method Modified EPA 80!5
Individual constituents by EPA Mer~hod 5030/8020.
Sample Matrix: Soil
Date Sample Date Sample
Collected: Received ~ Lab:
03/20/92 03/23/92
Constituents
Benzene
Toluene
Ethyl Benzene
o-Xylene
m & p-Xylene
To~a! Petroleum
Hydrocarbons (gas)
Analysis
Results
None Detected
None Detected
None Detected
None Detected
None Detected
None Detected
DaCe Analysis
Com_o!eted:
04/06/92
Reporting
Units
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
Reporting
Level
0.005
0.005
0.005
0.005
0.005
1.
California D.O.H.S. Cert. ~!186
Department Super~'is0r
IWILSON & ASSOCiATES
2217 "E" STREET
BAKERSFIELD, CA 93301
A~n.: JOHN R. ~WILSON
i S~mpie Description:.
I
Petroleum Hydrocarbons
323-6460
Date'of
Report: 04/02/92
Lab ~: 2576-14
CALIF. SHEET'M~TAL: 6 - 40' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WiLSON
TEST MET"HOD: TPH by D.O.H.S. / L,U.F.T. ~mnua! Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
I Sample Matrix:
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Soil
Date Sample Date Sample
Collected: Received @ Lab:
03/20/92 03/23/92
Constituents
Analysis
Results
Date Analysis
Completed:
04/~/92
Reporting
Units
Minimum
Reporting
Level
Benzene
Toluene
Ethyl Benzene
o-Xylene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
None Detected
0.008
None Detected
None Detected
0.0!0
None Detected
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
O.0O5
0.005
0.005
0.005
0.005
. Ca!ifo~ia D.O.H.S. Cert. $!186
Department Supe-~isor
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WILSON & ASSOCIATES
22!7 "E" STREET
BAKERSFIELD, CA 93301
ATtn.: JO.~N R. WILSON
323 -6460
Date Reported:
Date Received: 03/23/92
Laboratory No.: 2576-!4
Page
Sample Description: CALIF. SHEET .METAL: 6 - ~0' (SOIL) 03-20-92 FROM 0800 TO 1700 · COLLECTED BY J.R. WILSON
TOTAL CONT3LM!NANTS
(Title 22, Article !!, California Code of Regulations)
Method
Constituents SamDle Results Units- P.Q.L. Method
Lead 8.5 mg/kg 3.5 SW-6010
Comment:
P.Q.L. =
I N.D. =
STLC =
: TTLC =
Regulatory
Criteria
STLC TTLC
mq/L m~/kq
5.0 1000.
~_!! constituents reported above are in mg/kg (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent,totals
(TTLC) as sample subjected to appropriate techniques to determine total levels.
Practical Quantitation Limi't (refers to the least amount of analyte detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.) .
Soluble Threshold Limit Concentration
Total Threshold Limit Concentration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, September, 1986.
Department Supervisor
I.__L~BO~qATORI~S. IBC.
4100 Atlas Cour[
Bakersfield, California 93308
CHAIN OF CUSTODY
Matdx (S) Soil
SL) Sludge
(W) Water Other)
Samples rec. cold (y/n)
Custody Seals (y/n)
Results Needed by:
Date & Time
Number and
Container Type
,. LABORATORIlES. IF1C.
E2
4100 Atlas Court
Bakersfield, California 93308
CHAIN OF CUSTODY
I'LMatd× (S) Soil
(W) Water Other)
I~T~-T~/4 ~ ~')
Samples rec. cold (y/n)
Custody Seals (y/n)
Results Needed by:
Date & Time
Number and
Container Type
SL) Sludge
ATORIES. Inc.
4100 Atlas Court
Bakersfield, California 93308
CHAIN OF CUSTODY
Matrix (S) Soil (SL) Sludge
(W) Water (Other)
Samples rec. cold (y/n)
Custody Seals (y/n)
Results Needed by:
Date & Time
Number and
Container Type
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F;RE
5. C.
John M. McCauley
'Caiifornia Sheet Metal
4293 Country Club Drive
Bakersfield, CA _0306
Dear Mr. McCauley:
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i-ne site assessment report, received on September 23, 1992, for the California Sheet
Metal 'facility located ar 601 Eureka Sb"eet has been reviewed. "'This report.., comoleted
by John R. Wilson and Associates. recommends additional testing be accomplished in
order to assess the full e~ent of the contaminaqon plume. We concur! Furthermore,
it is recommended that the hydroc~bons in tine soil (as gasoline) be removed usin~
vapor extraction.
With the submi~al of a satisfactory corrective a~ion plan, meeting ~I cf the requirements
of Secdon 2725(c) Article 11, Title 23 CCR, it is snticipa;ed that vaoor ex'traction would
· be..[ound an acceptable means of mitigation.
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The ne~ step must be to complete the sampling necessary to define the full e.%ent (both
verdcal and lateral) of the contamination. These results as well as a corrective action
plan must then be submitted to this
The high .concentrations of product, in the soil indicate a good likelihood of plume
.migration. It is important that you proceed in a timely manner to minimize the risks to
the environment, as well as, the overall economic aspems of the clean-up.
Sincrr"!y yours,
Hazardous Materials Coordinator
REH/ed
CC:
Gary J. Leery GJL Environmental
4009 Falrwood Street
· Bakersfield, CA 93306-1310
E×I-IIBIT G
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WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON 323-6460
Sample Description: C~F. SHEET ~IETAL: 6
Date Reported: 04/03/92
Date Received: 03/23/92
Laboratory No.: 2576-12
Page 1 ..
20' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TOT/LL CONTA/~.iNA1TTS
(Title 22, Article 11, California Code of Regulations)
Consziuuenzs Samo!e Results Units
Regulatory__
Critaria
Method STLC TTLC
P.Q.L. Method mc/L mc/k=
Lead' 3.6 mg/kg 3.5 SW-60i0 5.0 !000.
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Comment:
Ail constituents reported above are in mg/kg (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to dete_~mine total levels.
P.Q.L. =
STLC =
TTLC =
Practical Quantitation Limit (refers to the least amount of ana!yte detectable
based'on s~mp!e size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.) .
Soluble Threshold Limit Concentration
Total Threshold Limit Concentration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, September, 1986.
Department Super~zisor
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
323-6460
Date of
Report: 04/07/92
Lab #: 2576-13
Sample Description: CALIF. SHEET ~iETA3~: 6 - 30' (SOIL) 03~20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST ~iE~HOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 80!5
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Constituents
Date Sample
Received ~ Lab:
03/23/92
Date Analysis
Completed:
o4/06/92
Analysis Reporting
Results Units
Minimum
Reporting
Leve !
Benzene None Detected mg/kg 0.005
Toluene None Detected mg/kg 0.005
Ethyl Benzene None Detected :' mg/kg 0.005
o-Xylene None Detected mg/kg 0.005
m & p-Xylene None Detected mg/kg 0.005
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg !.
California D.O.H.S. Cert. $1186
Depar%ment Supervisor
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Petroleum Hydrocarbons
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WILSON & ASSOCIATES ~, Daze of
2217 "E?.STREET ....... '' Report: 04/02/92
BA/~ERSFIELD, .CA 93301 ....... Lab $: 2576-14
Attn.: JOHN Ri WILSON 323-6460
Sample Description: CALIF. SHEET METAL: 6 - 40' (SOIL) 03-20-92 FROM 0800 TO 1700
.- COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
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Date Sample
Collected:
03/20/92
Constituents
Benzene
Toluene
EZhyl Benzene
o-Xylene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received @ Lab:
03/23/92
Analysis
Results
None Detected
0.008
None Detected
None Detected
0.010
None Detected
Dace Analysis
Completed:
04/0~/92
Reporting
Units
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
Minimum
Reporting
Level
0.005
0.005
0.005
0.005
0.005
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California D.O.H~S. Cer~.
Department Supe_~visor
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WILSON & ASSOCIATES
2217 "E" STREET
BA3(ERSFIELD, CA 93301
Attn.: JOHN R. WILSON 323-6460
Sample Description: CA~'IF. SHEET M~TAL: 6
Date Reported:
Date Received: 03/23/92
Laborato~--y No.: 2576-15
Page
40' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
Constituents
TOTD~L CONTD/~I~/~TS
(Title 22, Article 11, California Code of Regulations)
Samo!e Results
Regulatory
Criteria
Method STLC TTLC
Units P.Q.L. Method mq/L mc/kc
Lead 8.5 mg/kg 3.5 SW-6010 5.0 1000.
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Comment:
Ail constituents reported above are in mg/kg (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to dete-~-mine total levels.
P.Q.L. = Practical Quantitation Limit (refers to the least amount of ana!yte detectable
based on sample size used and analytical technique employed.
N.D. = None Detected (Constituent, if ~resent, would be less than the method P.Q.L.) .
STLC = Soluble Threshold Limit Concentration
TTLC = Toua! Threshold Limit Concentration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 8~6, September, 1986.
Department Supervisor
CHAIN OF CUSTODY.
Ill
Matrix (S) Soil (SL) Sludge
(W) Water (Other)
· Samples rec. coed (y/n)
Custody Seals (y/n)
Results Needed by:
Date & Time
Number and
Container Type
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
22!7 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN'R. WILSON
323-6460
Date'of
Report: 04/02/92
Lab ~: 2576-14
Sample Description:
CALIF. SHEET MET~_L: 6 40' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD:
TPH by D.O.H.S. / L.U.F.T. PIanual Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020. '
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Constituents
Benzene
Toluene
Ethyl Benzene
o-Xy!ene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received @ Lab:
03/23/92
Date Analysis
Completed:
04/0&/92
Minimum
Analysis Reporting Reporting
Results Units Level
None Detected mg/kg 0.005
0.008 mg/kg 0.005
None Detected '° mg/kg 0.005
None Detected mg/kg 0.005
0.010 mg/kg 0.005
None Detected mg/kg !.
California D.O.H.S. Cert. $1186
Department Supez-visor
41 O0 ~:;as ~. · ~ske~--~eld. C~ ~ · [15)(2:5) ~2~4~1 I · ~X (53~5] ~2~7-1 91 ~
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WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
323-6460
Date Reported:
Date Received: 03/23/92
Laboratory No.: 2576-14
Page
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Sample Description:
CALIF. SHEET P/ET/iL: 6 40'
COLLECTED BY J.R. WILSON
(SOIL) 03-20-92 FROM 0800 TO 1700
Constituents
TOTAL CONTAMINANTS
Title 22, 3~rtic!e !1, California Code of Regulations)
SamDle Results Units
Regulatory.
Criteria
Method STLC TTLC
P.Q,L. Method mg/L mc/kG
Lead
8.5 mg/kg 3.5 SW-6010 5.0 1000.
I Comment
P.Q.L.
N.D.
I STLC
TTLC
Ail constituents reported above are in mg/kg unless othe.~wise stated) cn
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to dete-~mine total levels.
Practical Quantitation Limi~ (refers to ~he least amount of analyte detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.) .
Soluble Threshold Limit Concentration
Total Threshold Limit Concentration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, September, 1986.
Department Supe r~;isor
I'________ ~~L~ 410o Atlas Court
BORATORIES. If-lC. Bakersfield, California 93308 CHAIN OF CUSTODY
io o , , ~
--- ~ ~- ~ ~
= ~ ~ o
~ ~ '' ~ ~ , ,
I
· . ~,~X
~ ~ ~ ~ ~ Matrix (S) Soil (SL) Sludge
........ ~- ~
.... ~.
< . -< Samples rec. cold (y/n) ·
II I* ~~ ~~ p_~.~ ~~__~ Custody Seals (y/n)
- Results Needed by:
Number
and
I' ~I Container Type
......~ ~ · .... ~ ~
I ~-- ' ~ ', , ~'"
I.I~ABORATORIISS. II-lC.
4100 Atlas Court
Bakersfield, California 93308
CHAIN OF CUSTODY
Matrix (S) Soil (SL) Sludge
(W) Water (Other)
I I
I I
I I
II
Samples rec. cold (y/n)
Custody Seals (y/n)
Results Needed by:
Date & Time
Number and
Container Type
; '" ~ ' 4100, Atlas Court
BORATORIES. II-lC. Bakersfield, California 93308 CHAIN OF CUSTODY-
~ I t I I t I -~ Samples rec. cold (y/n)
I i~ ~ Results Needed by:
~ Date 8 Time
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TA~ -- L "
SI/M2~3~Y OF Lk_BO~RY A/~A~Z-VTZCA/~ DATo%
(values ir:"- mil!iqr~m-~ pek kil .ogram)
Sam~ie Deot'n Ga$o!iae Benzene
'' i '' ~'L5" ' ~00O~ .... ~ '' MD "~' 7'3'90.~ 1'7'0¥.' ' 9'~0'.~
~' ~ ~' 3o' ~oo- ~D -' ·
i 75 ' ND ~D ~D ~ ~O
i S 0,' ~O ~D :~ ND ' MD ND
MD ~[D .~: 0.047 }~D 0,0!~
5ID 0.0S'~ 0. L~ 0 .~.n"° 0 .062
~2000.~ !000. ':' L500 ." 340." 2000.'
30000~ 400.~" _ 3400~ 800.~ 2700.*
~D ~D ~0 NO
~D ~D., ND
~o 0.0i! 0.017 ND
~D ND . .."t ND ND MD 3.~
~D ~O ~ ' ~O ND
MD ~O ~. 0.008 MD O.OiO
Z.O 0.005 0.005 0.005 0.005
LO00 L.O' L.O 50.0 50.0
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ZOO0 i'
ND: None De~ected at or afoove minimum reposing level.
NA: Not App!iclb!e.
._Ul~L: Kinimum Repor~ing Level.
*: exceeds c,~rrent recommended guidelines
.AL: .Regional Water Quality Control Board recommended ?uide!ines
for contaminants in soil. The recommended g~ide!ines.were
calcu!a~ed using ~he r_;J~T_ me~%odo! ~oqry by multiplying ~he most
stringent c~rent fedora! or state water qua!i~y standards by
a factor of !,000 to account for attenuation due to soil
composition and distance from groundwater.
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WILSON & AS.~0CIAT=S '-
22!7
A::n.: JOPLN R.
Repor~: 03/30/92
Lab ~: ~51T-1
Sample Descr£p=~on: PROJECT: ~01 EUREKA: %-5' (S01L) 03-19-92 FROM 0&00 ~IRS TO 1530 ERS
CO~LECT~D BY J.R. WILSON
T2ST M~THOD~ TPH by D.O.H.S. / L.U.~.T. ~anuel Mc:hod - Modi£ie~ E~A 0015
Xnd£v£dua! cono~i:uen:o by EPA
Date Sample
Rocm~vmd ~ Lab:
03/19/'92
Comple~e~:
03/27/92
M/nimtu~-
Analysis Repot:lng R~por:in~
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Toluene ~L0. ms/kg 20.
Ethyl Ben=she 50. ... m~/k~ 20.
o-Xylene ~60. m~/k~ 20.
m & p-Xylene $00. mg/k~ 20,
Total Pec=oleu~
Hydrocarbons (Sas) 6000. m~/kg 5000,
'1
High repo:.t~d PQL due to high ¢onccntr~tion~ 0~' target analy:c~ in sample.
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Califoznia D.O.H.S. Cer:. ~1106
PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
PAGE NO.4
The lowermost sleeve at each sample intervals was screened for
total organic vapors with a photo-ionization detector (PID).
Headspace vapor analysis was performed by first discarding a
portion of the soil retained at one end of the sleeve to produce a
headspace. The sleeve was then capped and the probe of the PID was
inserted through a hole in the cap and into the headspace for
analysis. The PID readings are recorded on the boring logs.
The middle sample sleeve was immediately transferred to a
glass jar, capped, security taped, labeled, and placed on ice for
transportation to a California Department of Health Services (DOHS)
-certified laboratory. Strict chain of custody procedures were
utilized for all samples collected to ensure sample integrity and
to document sample possession from the time of collection to the
final destination.
All sampling equipment was washed with TSP (tri-sodium
phosphate) cleanser, and rinsed with tap water and de-ionized water
prior to sampling, between sample intervals, and between borings to
minimize the possibility of cross-contamination. The drill auger
wassteamcleaned between borings, also to minimize the possibility
of cross-contamination. Contaminated drill cuttings and soil
sample spoils were stored in D.O.T. approved 55-gallon drums,
sealed, and left on-site pending appropriate disposal. After
drilling, the borings were backfilled with a 2 sack cement, sand,
and bentonite clay grout to seal the abandoned boreholes.
2.2 LaboratorV Analysis
Nineteen samples were selected for analysis based on: a)
observations and greatest PID readings of odorous soil, b)
observations and PID readings of the first encountered sampling
locations containing apparently uncontaminated soils, which would
serve to define the lateral and vertical extent of contamination,
and c) requirements that the two lowermost samples of each boring
which detects gasoline hydrocarbons be submitted for analysis. The
nineteen samples were analyzed at BC Laboratories for benzene,
toluene, ethyl benzene and total xylenes (BTEX) by the USEPA Test
Method 8020, and total purgeable hydrocarbons (TPH) as gasoline by
the DOHS LUFT Manual Method.
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
PAGE NO.5
3.0 RESULTS OF ENVIRONMENTAL ASSESSMENT
3.1 Sub-Soil Conditions
Regional Geology: The site is located in the southern part of
the Great Valley. The Great Valley is a north-south trending
valley, approximately 400 miles long by 50 miles wide. Surface and
groundwater in the San Joaquin Valley is derived predominantly from
the Sierra'Nevada mountain range to the east, and is transported by
five major rivers, the southern most being the Kern River. The
subject site is located approximately three miles south of the Kern
'River.
Site Soils: Soil deposits in the study area include alluvial
sediments of the Kern River Formation, which dip to the southwest.
The deposits are alluvium consisting of poorly graded fan deposits.
The depth to the regional unconfined aquifer is approximately
200 feet below surface grade beneath the site with the direction of
groundwater flow to the south (Kern County Water Agency,
.Improvement District No. 4, 1991 Report on Water Conditions,
February, !992). The nearest known occurrence of perched
groundwater is 2 miles to the southwest at a depth of 20 feet in
the abandoned Kern River channel to the ancient Kern Lake Bed (Kern
County Water Agency, 1991 Water Supply Report, May, 1992). No
perched groundwater is known to exist beneath the.subject site.
3.2 Subsurface Conditions
Subsurface material encountered during drilling included
artificial fill in the former tank pit underlain by alluvium to the
total depth of each boring. The artificial fill was encountered in
the upper portion of boring B-1 from the surface to approximately
!0 feet. The fill consisted of a medium brown, silty sand (SM).
3.3 Hydrogeology
Groundwater was not encountered in any of the borings drilled
during this project.' The project to the regional unconfined
aquifer is approximately 200 feet below surface grade beneath the
site with the direction of groundwater flow to the south (Kern
County Water Agency, Improvement District No. 4, 1992 Report on
Water Conditions, February, 1992). The nearest known of perched
groundwater is 2 miles to the southwest at a depth of 20 feet in
the abandoned Kern River channel to the ancient Kern Lake Bed (Kern
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTF~ER 1992
PAGE NO.6
County Water Agency, !991 Water Supply Report, May, 1992). No
perched groundwater is known to exist beneath the subject site.
3.4 Soil',Vapor Monitoring
Soil samples collected during drilling were monitored with a
photo-ionization detector (PID) to evaluate organic vapor
concentrations. The PID was calibrated with an isobutylene
standard of 100 per million (ppm) and contained an 11.8 electron
volt (eV) lamp, capable of detecting benzene (9.25 eV). Boring
~ogs presents the PID readings as they were recorded in the field.
3.5 Laboratory Anal~vtical Resu~.ts
Boring B-1 was advanced ttlrough the center of the former 550
gallon tank where (TPH) as gasoline were detected at 6,000 mg/kg at
5 feet and 15 feet, at 3,100 mg/kg at 30 feet, at 3,000 mg/kg at 45
feet and 18,000 mg/kg at 60 feet. TPH as gasoline was not detected
at 75 feet, 80, 85 and 90 feet. TPH wad detected in Boring B-2 at
12,000 mg/kg at 15 feet and at 400 mg/kg at 30 feet. TPH as
gasoline was detected in Boring B-3 at 30,000 mg/kg at 25 feet.
TPH as gasoline was detected in Boring B-5 at 7,000 mg/kg at a
depth of 40 feet. TPH as gasoline was not detected at 30 and 40
feet in B-4, at 15 feet in B-5 and at depths of 20~ 30 and 40 feet
in B-6.
The gasoline constituent volatile aromatic benzene was
detected in eight of the nineteen samples analyzed. Benzene was
detected in; Boring B-1 at 5 mg/kg at 45 feet, 110 mg/kg at 60 feet
and 0.084 mg/kg at 90 feet, Boring B-2 at 1,000 mg/kg at 15 feet
and 0.2 mg/kg at 30 feet, Boring B-3 at 400 mg/kg at 30 feet,
Boring B-5 at 0.011 mg/kg at 35 feet and 42 mg/kg at 40 feet.
Benzene was not detected in B-1 at depths of 5, 15, 30, 75 80 and
85 feet, B-2 at depths of 30 feet, and 40 feet, B-6 at depths of
20, 30 and 40 feet.
Toluene was detected in thirteen of the nineteen samples.
Toluene was detected in; Boring B-1 at 210 mg/kg at 5 feet, 390
mg/kg at 15 feet, 86 mg/kg at 30 feet, 160 mg/kg at 45 feet, 1,300
my/kg at 60 feet, 0.047 mg/kg at 85 feet, 0.16 mg/kg at 90 feet,
Boring B-2 at 1,500 mg/kg at 15 feet, 1.2 mg/kg at 30 feet, Boring
B-3 at 3,400 mg/kg at 25 feet, Boring B-5 at 0.017 mg/kg at 15
feet, 540 mg/kg at 40 feet, Boring B-6 at 0.008 mg/kg at 40 feet.
Toluene was not detected in Boring B-1 at 75 and 80 feet, B-4 at 30
and 40 feet, B-6 at 20 and 30 feet.
PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
PAGE NO.7
Ethyl benzene was detected in ten of the nineteen samples
analyzed. Ethyl benzene was detected in; Boring B-1 at 50 mg/kg at
5 feet, 170 mg/kg at 15 feet, 71 mg/kg at 30 feet, 75 mg/kg at 45
feet, 300 mg/kg at 60 feet and 0.049 mg/kg at 90 feet, Boring B-2
at 340 mg/kg at 15 feet, 4.7 mg/kg at 30 feet, Boring B-3 at 800
mg/kg at 35 feet, Boring B-5 at 160 mg/kg at 40 feet. Ethyl
benzene was not detected in Boring B-1 at 75, 80 and 85 feet,
Boring B-4 at 30 and 40 feet, B-5 at 15 feet, B-6 at 20, 30 and 40
feet.
Due to the presence of "gasoline" in the soil, selected
'samples were analyzed for Lead. Lead was detected in B-1 at 5 feet
at 39 mg/kg (TTLC) and 2.7 mg/1 (STLC), at 30 feet at 4.5 mg/kg
(TTLC) at 85 feet at 4.5 mg/kg, at B-2 at 30 feet at 3.9 mg/kg, at
B-6 at 20 feet at 3.6 mg/kg and at 40 feet at 8.5 mg/kg.
Regional Water Quality Control Board recommended guidelines
for gasoline, and the gasoline constituent volatile aromatics,
benzene, toluene, recommended and total xylenes have been
calculated using the LUFT methodology by multiplying the most
stringent current federal or state water quality standards by a
factor of !,000 to account for attenuation due to site-specific
parameters including vertical separation to ground water, soil
lithology, fractures in subsurfaces, annual average precipitation,
and any direct conduits to ground water. The limits are 1,000
mg/kg for TPH as gasoline, 1.0 mg/kg for benzene and toluene, and
50 mg/kg for ethyl benzene and total xylenes.
4.0 CONCLUSIONS
The data obtained from the field operations suggest that soil
impacted with gasoline hydrocarbons, and the gasoline constituent
volatile aromatics at concentrations in excess of RWQCB recommended
guidelines exists at the subject site in the area directly beneath
the former 550 gallon underground gasoline storage tank to a depth
of 60-75 feet, and laterally of approximately 35 feet. The
estimated volume of soil with concentrations of gasoline
hydrocarbons in excess of 1,000 mg/kg, and volatile aromatics in
excess a their respective recommended guidelines is 6,000 cubic
yards.
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEPIBER 1992
PAGE NO.8
4.1 Remedial Action. Alternatives
At least four options for remediation of the soil are
applicable to the site 1) excavation and transportation of soil to
an approved landfill or recycling facility, 2) in-situ vapor
extraction, 3) excavation and uncontrolled aeration, and 4) no
action.
In the first action, impacted soil would be excavated and
transported to a suitable disposal site or recycling firm. Due to
the depth of the contaminated soil we believe that the existing
'means of excavation would not be suitable for this site.
The next option is to treat the soil through in-situ vapor
extraction. Wells are drilled into the impacted soil. The
hydrocarbon vapors are extraction and treated as a unit such as a
thermal oxidizer. We believe that three wells would effectively
extract the gasoline hydrocarbons, and the time frame for
successful treatment would be approximately six to nine months.
The cost for installing the wells and below ground manifolding
would be approximately $32,000.00. The monthly cost rental of an
extraction unit will be approximately $8,500.00/month, or $42,5000
for five months, including the cost of electricity, and/or
suPplemental fuel. Verification, soil sampling and system
abandonment would be approximately $17,300. Management fees
including Work Plans, regulatory liaison, supervision, reports,
etc. will be approximately $10,000. The overall cost is estimated
to be $101,800. However, we believe that additional borings will
be necessary to further define the lateral extent of the
contamination.
The third option is to excavate the soil and "aerate" on-site.
Again due to the depth of the contamination we believe that
excavation of the soil is not acceptable.
The fourth option is to leave the site "as-is" and allow
natural in-situ biodegradation to occur. Due to the high
concentrations of gasoline and the gasoline constituent volatile
aromatic we believe that there is a "risk" of leaking hydrocarbons
to groundwater, which is at a depth of approximately 200 feet.
Long term monitoring of the hydrocarbons may be required at
additional costs.
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PRELIMINARY SITE CHARACTERIZATION
CALIFORNIA SHEET METAL
SEPTEMBER 1992
PAGE NO.9
5.0 RECOMM~9~DATIONS
WILSON .AND ASSOCIATES, iNC. would recommend that 'two
additional borings be completed in order to assess the lateral
extent 0f~the contamination. One boring would be located southwest
of Boring B-3, and another boring would be located northwest of
Boring B-5. At the completion of the laboratory analysis. W&A
would prepare a Work Plan for implementation of a vapor extraction
system.
6.0 CLOSURE
This report has been prepared-for the exclusive use of the John
McCauley as it pertains to the location of the former gasoline tank
at 601 Eureka Street, Bakersfield, California. The conclusions and
recommendations rendered are opinions based on information obtained
within the scope of work authorized by the client.
This report should not be regarded as a guarantee that no further
contamination, beyond that which may have been detected within the
scope of this study, is present on or beneath the site. If
additional information regarding the possible presence or past use
of hazardous materials at the site becomes available, then the need
for further field investigation should be re-evaluated. Similarly,
if suspected contamination is encountered during earthwork or
construction activities, a qualified engineer or geologist should
be on-site to monitor the soils and collect samples for laboratory
analysis. Work has been performed in accordance with generally
accepted practices in geotechnical and environmental engineering,
engineering geology, and hydrogeology. No other warranty, either
expressed or implied, is made.
Thank you for this opportunity to be of service. If you~have any
questions regarding this report or the information contained
herein, please contact this office at your convenience.
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SITE PLA'N
CO~CR~7~ '"4 /
'"w /'
I"=10'
OF
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0
WILSON & ASSOCIATES
I2217 "E" STP-EET
BAKERSFIELD, CA 93301
Attn.: JOHN R. 'WILSON
Petroleum Hydrocarbons
Date of
Report: 03/30/92
Lab $: 2517-1
323-6460
I Sample Description: PROJECT: 601 EUREKk: 1-5' (SOIL) 03'-19-92 FROM 0800 HRS TO 1530 HRS
COLLECTED BY J.R. WILSON
TEST NJ~THOD:
TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
'1
' Sample Matrix:
IDate Sample
Collected:
03/19/92
Constituents
Benzene
Toluene
Ethyl Benzene
o-Xylene
m & p-Xylene
Total Petroleum
Soil
Hydrocarbons (gas)
Date Sample
Received ® Lab:
03/t9/92
Date Analysis
Completed:
03/27/92
Minimum
Analysis Reporting Reporting
Results Units Level
None Detected mg/kg 20.
210. mg/kg 20.
50. mg/kg 20.
360. mg/kg 20.
600. 'mg/kg 20.
6000. mg/kg 5000.
INo%e:
i High reported PQL due to high concentrations of target analy~es in sample.
California D.O.H.S. Cert. ~!186
Departmen~ Supervisor
I WILSON & /%SSOCiATES
2217 "E" STREET
IBA/fERSFIELD, CA 93301
A~n.: JOH/~ R. WILSON
Sample Description:
!
Constituents
," I Lead
323-6460
Date Reported: 03/30/92
Da~e Received: 03/19/92
Laboratory No.: 2517-1
Page
PROJECT: 601 EUREKk: 1-5' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS
COLLECTED BY J.R. WILSON
TOTAL CONTA/~.IAtA/T~S
(Title 22, .~rticle !!, California Code of Re_~ulations)
Regulato_--y.
Criteria'
MeZhod STLC TTLC
Samo!e Results Units P.Q.L. Method moiL mq/~q
39. mg/kg 4.0 SW-G010 5.0 1000.
'!
IComment
P.Q.L. =
N.D. =
' · STLC =
TTLC =
Ail constituents reported above are in mg/kg (unless otherwise suated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to determine total levels.
Practical Quantitation Limit .(refers to the least amount of ana!yte de~ectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.) .
Soluble Threshold Limit Concantration
Todal Threshold Limit Concan~rauion
REFERENCES:
SW = "T=st Meuhods for Evaluating Solid Wastes Ph},sica!/Chemica!' Methods",
SW 846, September, 1986.
= Department Supervisor
Pr--CEIVED
APR 1 ?
WIL~u~ & ~UC. INC.
IWiLSON & ASSOC~_ATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
!
323-6460
Date Reported: 04/!4/92
Date Received: 03/!9/92
Laboratory No.: 2517-!_ADD'N
WET TEST
EXTP~ACT CONTAM~IALA1TrS /L~JLLYZED ACCORDING TO TITLE 22, ARTICLE !!,
C~IFOP~NiA CODE OF REGULATIONS FOR ~AZARDOUS WASTE DETErmINATION
(STLC)
ISample Description: PROJECT: 601. EUREKA: !-5' (SOIL) 03-t9-92 FROM 0800 MRS TO 1530 ERS
COLLECTED BY J.R. WILSON
I Sample Results Method
Constituents mq/liter P.Q.L. Method
ILead 2.7 0.5 SW-6010
Regulatory
Criteria
S%~C
5.0
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Comment:
I
iP.Q.L. =
N.D. =
Ail metals reported above are in mg/liter on a filtrate basis (STLC). These
results are based on extracting sample according to Title 22, Article !!,
California Administrative Code using a 48-hour citric acid (deionized water
for hexavatent ~kromium) extraction.
Practical Quantitation Limit (refers to the least amount of ana!y~e detectable
based on sample size used and analytical technique employed.
None Detected (If constituent is present it would be less ~han the method
P.Q.L. listed to the right.
'l STLC = Soluble Threshold Limit Concentration
_ ' REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, September, 1986.
-!
WILSON & ASSOCIATES
,2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
Petroleum Hydrocarbons
323-6460
Date of
Report: 03/31/92
Lab ~: 2517-3
ISamp!e Description: PROJECT: 601 EUREKA: 1-!5' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
ISampte Matrix:
Soil
I Da~e Sample Date Sample Date Analysis
Collected: Received @ Lab: Completed:
03/19/92 03/!9/92 03/30/92
I ~inimum
· Analysis Reporting Reporting
Constizuenus Results Units Level
'mBen=ene None Detected mg/kg 100.
[]
Toluene 390. mg/kg !0.
Ethyl Benzene 170. mg/kg 10.
I o-Xylene 230. m~/kg 10.
m & p-Xylene 960. mg/kg !0.
Total Petroleum
Hydrocarbons (gas) 6000. mg/kg 2000.
Note:
High reported PQL due zo high concentrations of target analytes in sample.
Ca!ifo.~nia D.O.H.S. Cert. ~1186
I Department Supervisor/
Petroleum Hydrocarbons
WILSON & ASSOCIATES Date of
2217 "E" STREET Report: 03/27/92
BAKERSFIELD, CA 93301 Lab $: 2517-6
Attn.: JOHN R.' WILSON 323-6460
ISample Description: PROJECT: 601 EUREKA: 1-30' (SOIL) 03-19-92 FROM 0800 HRS TO i530
h-RS COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix:
Date Sample
Collected:
03/z~/92
'1
Constituents
Benzene'
Toluene
E~hyl Benzene
o-Xylene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
Soil
Note
Date Sample
Received ® Lab:
03/19/92
Date Analysis
Completed:
03/26/92
Minimum
Analysis Reporting Reporting
Results Units Level
None Detec=ed mg/kg 2.
86. mg/k9 2.
71. mg/kg 2.
88. mg~kg 2.
350. mg/kg 2.
3100. mg/kg 500.
High reported PQL due to high concentrations of target analytes in sample.
!
California D.O.H.S. Cert.
Department Supez~zisor
WILSON &ASSOCI_kTES
2217 "E" STREET
IBA/CERSFIELD, CA 93301
Attn.: JOHN ~. WILSON
323-6460
Date Reported: 04/02/92
Date Received: 03/19/92
Laboratory No.: 2517o6
Page 1
iSample Description:
PROJECT: g01 EUREKA: 1-30' (SOIL) 03-t9-92 FROM 0800 HRS TO !530
H~S COLLECTED BY J.K. WILSON
Constihuents
ILead
TOTA~ CONTAi~INA/~TS
(Title 22, Article 1!, California Code of Regulations)
Regulatory
Criteria
Method STLC TTLC
Sample Results Units P.Q.L. Method mq/L mc/k~
4.5 mg/k~ 4.0 SW-6010 5.0 !000.
'1
'1
m Comment:
mP.Q.L. =
m N .D. =
STLC =
TTLC =
All constituents reported above are in m~/k~ (unless otherwise stated) on
an as received (wec) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to determin~ .total levels.
Practical Quantitation Limit'(refers to the least amount of analyte detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.).
Soluble Threshold Limit Concentration
Total Threshold Limit Concentration
IREFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, SeptemlDer, !986.
Department Supervisor
m
m
WILSON & ASSOCZATES
m22!7 ,,~,, STR.EET
BkKERSFIELD, CA 93301
Attn.: JOHN R. WILSON
m
Sample Description:
Petroleum Hydrocarbons
Date of
Report: 03/27/92
Lab ~: 2517-9
323-6460
PROJECT: 601 EUREKa: 1-45' (SO!L) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
·
' m TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
·
Individual constituents by EPA Method 5030/8020.
msample Matrix: Soil
Date Sample
Collected:
' 03/19/92
m
Constituents
mBenzene
Toluene
Ethyl Benzene
mo-Xylene
m & p-Xylene
- Total Petroleum
Hydrocarbons (gas)
Date Sample
Received ® Lab:
03/!9/92
Date Analysis
Completed:
03/26/92
Minimum
Analysis Reporting Reporting
Results Units Level
5. mg/kg 5.
160. mg/kg 5.
75. mg/kg 5.
!40. mg/kg 5.
250. mD/kg 5.
3000. mg/kg 1000.
m
Note:
m
m
High reported PQL due to high concentrations of target analytes in sample.
California D.O.H.S. Cert.
DeparTment Supez~zisor
I
I
WILSON & ASSOCIATES
i22!7 "E" STP~ET
BAF~ERSFIELD, CA 93301
ATtn.: JOHN R. WILSON
Petroleum Hydrocarbons
323-6460
Date of
Report: 03/3!/92
Lab #: 2517-12
ISample Description: PROJECT: ~0! EUREKA: 1-60' (SOIL) 03-!9-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
I TEST ~THOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
ISample Matrix: Soil
IDate Sample
Co!lecced:
03/19/92
Dace Sample
Recaiwed @ Lab:
03/19/92
Date Analysis
Completed:
03/30/92
Minimum
Analysis Reporting Reporting
Constituents Results Units Level
I Benzene !10. mg/kg 20.
Toluene 1300. mg/kg 20.
Ethyl Benzene 300. mg/kg 20.
io-Xylene 460. mg/kg 20.
m & p-Xylene 2100. 'mg/kg 20.
Total Petroleum
Hydrocarbons (gas} 13000. mg/kg 5000.
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I
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High reported PQL due 5o high concentrations of ~ar§e~ analyte$ in sampl'e.
califor~.ia D.O.H.S. Cer~. ~.llB6
Department Super~-isor
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
A~Zn.: JOHN R. WILSON
Isampie Description:
Petroleum Hydrocarbons
323-6460
Date of
Report: 03/30/92
Lab ~: 2517-15
PROJECT: 601 EUREKA: 1-75' (SOIL) 03-19-92 FROM 0800 HRS TO !530
HRS COLLECTED BY J.R. WILSON
'1
!
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
IDate Sample
Collected:
03/19/92
Constituents
I
.IBenzene
Toluene
Ethyl Benzene
Io-xy!ene
m & p-Xylene
Total Petroleum
i Hydrocarbons
(gas)
Date Sample
Received $ Lab:
03/19/92
Analysis
Results
None Detected
None Detected
None Detected
None Detected
None Detected
None Detected
Date Analysis
Completed:
03/27/92
Reporting
Units
mg/kg
mg/kg
mg/kg
mg/kg
mg/k9
mg/k~
Minimum
Reporting
Level
0.005
0.005
0.005
0.005
0.005
!.
,!
California D.O.H.S. Cert.
Department Supe_~zisor
WILSON & 3L~SOCIkTES
IAjE217 "E" STREET
RSFIELD, CA 93301
tn.: JOHN ~. WILSON
323-6460
Date Reported: 04/02/92
Daze Received: 03/!9/92
Laborato.--y No.: 2517-15
Page 1
lamp!e Description: PROJECT: ~0! EUREKA: !-75' (SOIL) 03-!9-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
TOTAL CONT3lbiIIqA/F~S
(Title 22, kr~ic!e I1, California Code of Regulations)
i Regulato_~y .
Criteria
Method STLC TTLC
Constituents SamD!e Results Units P.Q.L. Method ma/L ma/ka
,!
I Jead None Detected mg/k9
2.5 SW-60!0 5.0 .!000%
.IComment:
:.!p.Q.L. =
Ail constituents repor:ed above are in mg/k9 (unless otherwise stated) on
an as received (wet) sample basis. Resul:s reported represent totals.
(TTLC) as sample subjected to appropriate techniques to determine total levels.
Practical Quantitation Limit (refers to the least amount of ana!yte de~ec:ab!e
based on sample size used and analyzica! [echnique employed.
IN.D. = None Detected (Constituent, if present, would be less ~han Khe method P.Q.L.) .
STLC = Soluble Threshold Limit Concentration
"'TTLC = Total Threshold Limi~ Concentrazion
'I!REFERENCES:
SW = "Test Methods for Eva!uatin9 Solid WasKes Physical/Chemical Methods",
SW 846, September, !986.
Department Supervisor
;I
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Atzn.: JOHN R. WILSON
Sample Description:
Petroleum Hydrocarbons
Date of
Report: 03/31/92
Lab ~: 2517-16
323-6460
PROJECT: 601 EUREKk: 1-80' (SOIL) 03-19-92 FROM 0800 HR5 TO !530
HRS COLLECTED BY J.R. WILSON
ITEST I~ETHOD: TPH by D.O.H.S. / L.U.F.T. Method -
Manual
Modified
EPA
8015
Individual constituents by EPA Method 5030/8020.
I samp!e Matrix: Soil
IDate Sample
iCollected:
03/!9/92
Constituents
!
Ii Benzene
Toluene
Ethyl Benzene
Io-Xyiene
m & p-X¥1ene
Total Petroleum
Hydrocarbons (gas)
I.
Date Sample
Received ® Lab:
03/19/92
Analysis
Results
None Deteczed
None Detected
None De~ected
None Deteczed
None Detected
None Detected
Date Analysis
Comp!e~ed:
03/30/92
Reporting
Units
mg/kg
mg/kg
mg/kg
m~/kg
mg/kg
mg/kg
I~inimum
Reporting
Level
O.0O5
0.005
0.005
0.005
0.005
1.
California D.O.H.S. Cert. ~!186
Depar~men~ Supe_~v,_ sor
!
WILSON & ASSOCIATES
22!7 "E" STt:~ET
BAk~ERSFiELD, CA 93301
Attn.: JOHN R. WILSON
!
I TEST PS~THOD:
Isample Matrix: Soil
lDate Sample
Collected:
03/19/92
i Constituents
Toluene '
Eth¥! Benzene
I o-Xy!ene
m & p-Xy!ene
Total Peuroleum
Hydrocarbons (gas)
Petroleum Hydrocarbons
323-6460
Date of
Report:
Lab ~:
03/3!/92
2517-17
Sample Description: PROJECT: 601 EUREKA: 1-85' (SOIL) 03-19-92 FROM 0800 HRS TO 1530
HRS COLLECTED BY J.R. WILSON
TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Date Sample
Received @ Lab:
03/19/92
Date Analysis
Completed:
03/30/92
Minimum
Analysis Reporting Reporting
Results Units Level
None Detected mg/kg 0.005
0.047 mg/kg 0.005
None Detected mg/kg 0.005
None Detected mg/kg 0.005
0.014 mg/kg 0.005
None Detected mg/kg 1.
California D.O.H.S. Cert. ~!!86
Department Supe?visor
WT_LSON & ~SOCI~TES
2217 "E" STREET
BAi~ERS FIELD, CA 93301
Attn.: JOHN R. WILSON
Isamp!e Description:
Date Reported: 04/02/92
Date Received: 03/!9/92
Laborato?~ No.: 2517-17
Page 1
323-6460
PROJECT: 60! EUREKA: !-85' (SOIL) 03-19-92 FROM 0800 HRS TO !530
h'RS COLLECTED BY J.R. WILSON
I
i
Constituents
IiLead
TOT~LL CONT~_MINANTS
(Title 22, Article !!, California Code of Regulations)
Regulatory
Criteria
Method STLC TTLC
Samole Results Units P.Q.L. Method mG/L mg/kq
4.5 mg/kg 2.5 SW-60!0 5.0 1000.
I
I
I
I
Corr~lleMt:
I
"~ ?.Q.L. =
All constizuenus reported above are in mg/k9 (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to determine total levels.
Practical Quantitation Limit (refers to the least amount of analyte detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if present, would be less than the method P.Q.L.).
= Soluble Threshold Limit Concentration
= Total Threshold Limit Concentration
I~REFERENCES:
S~ = "Test Methods for Eva!uatin~ Solid Wastes Physical/Chemical Methods",
SW 8~.g, September, 1986.
Deparumen~ Supervisor
I
L
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I
Petroleum Hydrocarbons
WZLSON & ASSOCiaTES Da~e of
22!7 "E" STREET Report: 04/06/92
BA}~.RSFIELD, CA 93301 Lab ~: 2576-1
A~tn.: JOPIN R~ WILSON 323-6460
S~mpie Description: C_~IF. SHEET .METAL: ! 90' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
I ~THOD: TPH D.0.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
TEST
by
Individual consEiEuents by EPA Method 5030/8020.
I Sample F~trix:
Soil
I Date Sample Date Sample Date Analysis
Collected: Received ® Lab: Completed:
03/20/92 03/23/92 04/05/92
:l Analysis Reporting
Cons%ituents Results Units
~.'1 Benzene 0.084 mg/k9
Toluene 0. !6 mg/kg
Ethyl Benzene .0. 049 mg/kg
i o-Xylene 0.02~ m~/kg
m & p-Xylene 0. 062 m~/k~
· To~al Petroleum
Hydrocarbons (gas) None Detected m~/kg
F~inimum
Reporuing.
Level.
0.005
0.005
0.005
0.005
0.005
!.
Ca!ifo=?.ia D.O.H.S.
Departmenu Supervisor
Cer~. $!!86
I
I
PeUro!eum Hydrocarbons
WILSON & ASSOCLATES Date of
I 22!7 "E" STREET Report: 04/06,/92
BAKERSFIELD, CA 93301 Lab 5: 2576-2
Attn.: JOHN ~. WILSON 323-6460
I "
Sample Description: CALIF. SHEET .METAL: 2 - 15' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
I
I
I
I
'
I
TEST FiETHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 80!5
Individual constituents by EPA Method 5030/8020.
Sample ~atrix: Soil
Date Sample Date Sample
Collected: Received ® Lab:
03/20/92 03/23/92
Constituents
Date Analysis
Completed:
04/05/92
Analysis Reporting
Results Units
Benzene .- t000. mg/kg
Toluene 1500. mg/k9
Ethyl Benzene 340. mg/k9
o-Xylene 480. mg/kg
m & p-Xylene 2000. mg/kg
Total Petroleum
Hydrocarbons (gas) 12000. mg/kg
Minimum
Reporting
Level
5.
5.
5.
5.
1000.
High reported PQL due to high concentration of target analytes.
California D.O.H.S. Cer%. 51186
Department Supervisor
41 (2/D ~as C~. · 5~ake,~et-~. '.~-~ ~SEk?~ · (5~k_~ S27~4_~1 1 · =~0< (.~C~ _q27-~ ~1S
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JOHN R.' WILSON
Sample Description: C~iF. SHEET .METAL: 2 30'
COLLECTED BY J.R. WILSON
Date of
Report: 04/06/92
Lab $: 2576-4
(SOIL) 03-20-92 FROM 0800 TO !700
TEST METHOD: TPH by D.0.H.S. / L.U.F.T. !4anua! Method - Modified EPA 80!5
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample Date Sample Date Analysis
Collected: Received @ Lab: Completed:
03/20/92 03/23/92 04/05/92
Analysis Reporting
Constituents Results Units
Benzene 0.2 mg/kg
Toluene !.2 mg/kg
Ethyl Benzene 4.7 mg/kg
o-Xy!ene 39. mg/kg
m & p-Xytene 10. mg/kg
Total Petroleum
Hydrocarbons (gas) ~00. mg/kg
~inimum
Reporting
Level
· 0 .!
0.!
0.!
0.1
0.!
200.
High reported ?QL due to high concentrations of target analytes.
Ca!ifo=nia D.O.H.S. Cert. $1186
DeDarumenu SuDe.--visor
I
I
I
I
I
I
,I
'1
I
I
I
'1
WILSON & ASSOCI_kTES
2217 "E" S?REET
~RSFiELD, CA 93301
Attn.: JOH~ R. WILSON
323-6460
Date Reported: 04/03/92
Date Received: 03/23/92
Laborato---y No.: 2576-4
Pa~e
Sample Description: CALZF. SEE_ET ~TAL: 2 30' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.~. W~LSON .
TOTAL CONT.nlZIND/VfS
(Title 22, Article !!, California Code of Re_~u!ations)
Regulatory
Criteria
~ethod STLC ~"~fLC
Constituents SamD!e Results Units P.Q.L. Method mq/L ma/kq
Lead 3.9 mg/kg 3.5 SW-6010 5.0 !000.
Co~/nent:
P.Q.L. =
I N.D. =
STLC =
~' TTLC =
Ail constituents reported above are in mg/kg (unless otherwise stated) on
a~. as received (wet) sample basis. Results reported represent, totals
(TTLC) as sample subjected to appropriate techniques to determine total levels.
Practical Qua~titation Limit (refers to the least amount of anaiyte detectable
based on sample size used and analytical technique employed.
None DeTected (Constiuuent, if present, would be less than the method P.Q.L.) .
Soluble Threshold Limit Concentration
Total Threshold Limit Concennration
REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
Sw 846, .September, 1986.
Department Supervisor
I
I
Petroleum Hydrocarbons
WILSON & ASSOCIATES Date of
I2217 "E" STREET Report: 04/02/92
BAKERSFIELD, CA 93301 Lab ~: 2576-6
A~tn.: JOHI~ R. WILSON 323-6460
I Sample Description: CALIF. SHEET MET/LL: 3 25' (SOIL) 03-20-92 FROM 0800 TO !700
COLLECTED BY J.R. WILSON
I TEST FiETHOD: TPH h¥ D.O.H.S. / L.U.F.T. F~anua! Mer2nod - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
I
I
i
'1
I
I
Sample Matrix: Soil
DaTe Sample Date Sample
Collected: Received $ Lab:
03/20/92 03/23/92
ConstiTuents
Date Analysis
Completed:
04/01/92
Minimum
Analysis Reporting Reporting
Results Units Level
Benzene 400. mg/kg i00.
Toluene 3400. mg/kg 100.
EUhy! Benzene 800. mg/kg !00.
o-Xylene !500. mg/kg 100.
m & p-Xyiene 2700. mg/kg !00.
Total Petroleum
Hydrocarbons (gas) 30000. mg/kg 20000.
High reported PQL due to high concentrations of target analytes in sample.
Californi= D.O.H.S. CerT. ~!186
Department Supe~--?iscr
WILSON & /%SSOCLkTES
2217 "E" STREET
I BAKERSFZELD, CA 93301
Attn.: JOHN R~ WZLSON
Petroleum Hydrocarbons
323 -6460
Date of
Report: 04/07/92
Lab $: 2576-7
iSample 'Description: CALIF. SHEET IEET3%L: 4 - 30' (SOIL) 03-20-92 FRO~ 0800 TO 1700
COLLECTED BY J.R. WILSON
I TEST ~EETHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EP~ 80!5
Individual constituents by EP~ Method 5030/8020.
I Sample
Matrix:
Soil
i Date Sample Date Samp. le~ Date ~%nalysis
Collected: Received @ Lab: Completed:
03/20/92 03/23/92 04/06/92
Constituents
Analysis Reposing
Results Units
Benzene None Detected mg/k9
Toluene None Detected m~/kg
Ethyl Benzene None Detected mg/kg
o-Xylene None Detected mg/kg
m & p-Xylene None Detected mg/kg
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg
'!
Minimum
Repor~in9
Level
0.005
0. 005
0. 005
0. 005
0.005
0.!
California D.O.H.S. Cert. $!!86
Depar~men~ Super~-i sot
I
I
I
I
I
Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BA/fERSFIELD,.CA 93301
Au~n.: JOP!N R.~WILSON
323 -6460
Date of
Report: 04/01/92
Lab $: 2576-8
Sample Description: ~kLIF. SB~ET .W/ETAL: 4 - 40' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST ME,MOD: TPH by D.0.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constizuenns by EPA Method 5030/8020.
Sample Matrix: Soil
I Date Sample Dane Sample Date Analysis
Collected: Received ® Lab: Completed:
03/20/92 03/23/92 03/3!/92
!
Constituents
Analysis Reporting
Results Units
Benzene None Detected mg/kg
Toluene None Detected mg/kg
Ethyl Benzene None Detected mg/kg
o-Xylene None Detected mg/kg
m & p-Xylene None Detected mg/kg
Total Petroleum
Hydrocarbons (gas) None DetecTed mg/kg
Minimum
Reporting
Level
0.005
0.005
0.005
0.005
0.005
California D.O.H.S. Cart. ~!!86
Department Supe_--visor
WILSON & ASSOCLkTES
2217 "E" STREET
BAKERSFIELD, CA 93301
Attn.: JO.~N Ri WILSON
323-6460
Petroleum Hydrocarbons
Date of
Report: 04/07/92
Lab ~: 2576-11
Sample Description: ~%LIF. SP~ET ~_TAL: 5 !5' (SOIL) 03-20-92 FROM 0800 TO !700
COLLECTED BY J.R. W~LSON
TEST _~IETHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample .Matrix: Soil
Date Sample Date Sample
Collected: Received @ Lab:
03/20/92 03/23/92
Constituents
Benzene
Toluene
Ethyl Benzene
o-Xy!ene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
Analysis
Results
0.01!
0.017
None Detected
None Detected
None Detected
None Detected
Date Analysis
Completed:
04/06/92
Reporting
Units
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
~linimum
Reporting
Level
0.O05
0.005
0.005
0.005
0.005
!.
Califo~--nia D.O.H.S. Cert. ~!!86
Department Supervisor
iWILSON & ASSOCIATES
2217 "E" STREET
BA/CERSFiELD, CA 93301
'Attn.: JOH/~ R. WILSON
'1
Petroleum Hydrocarbons
323-6460
Date of
Report: 04/02/92
Lab $: 2576-!0
Sample Description: CALIF. SHEET METAL: 5 - 40' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.0.H.S.. / L.U.F.T. F~nnua! Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
I Sample Matrix: Soil
Date Sample Date Sample
Collected: Received @ Lab:
03/20/92 03~/23/92
.!
Constituents
Date Analysis
Completed:
04/01/92
Minimum
Analysis Reporting Reporting
Results Units Level
Benzene 42. mg/kg 5.
Toluene 540. mg/kg .5.
Ethyl Benzene 160. mg/kg 5.
o-Xylene 300. mg/kg 5.
m & p-Xylene 510. mg/kg 5.
Total Petroleum
Hydrocarbons (gas) 7000. mg/kg 2000.
High reported PQL due to high concentrations of target analytes in sample.
California D.O.H.S. Cert. $!186
Deparrnnenc Supe.--visor
~41 (DO m. clas ~i · 5Bake,-sfiet~-, C~ ~-~ · (~ .S~7-4~1 1 . ,= ~)< (SC~ ~_q7-1 91 ~
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!
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!
!
Petroleum Hydrocarbons
WILSON & 3~SSOCLATES
22!7 "E" STREET
BAICERSFIELD, CA 93301
Attn.: JOHN R.-WILSON
323-6460
Sampie Description: CALIF. SF~EET MET3LL: 6 20'
COLLECTED BY J.R. WILSON
Date of
Report: 04/02/92
Lab ~: 2576-12
(SOIL) 03-20-92 FROM 0800 TO 1700
TEST METHOD: TPH by D.0.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample ~atrix: Soil
Date Sample Date Sample ' Date Analysis
Collected: Received @ Lab: Compleued:
03/20/92 03/23/92 04/01/92
ConstiTuents
~linimum
]%na!ysls Reporting Reporting.
Results Units Level
Benzene None Detected mg/kg
Toluene None Detected mg/kg
Ethyl Benzene None Detected m~/k9
o-Xy!ene None Detected mg/k~
m & p-Xylene None Detected mg/kg
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg
0.005
0.005
0.005
0.005
0.005
t.
California D.O.H.S. Cer~. $118g
Depar~men~ Super--visor'
uo
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I
Pet=oleum Hydrocarbons
WILSON & ASSOCIATES
1117 "~" STREET
A=~n.: JOtI~ R. WILSON 323-6460
RepOrt; 03/31/.~2
Lab ~; 2527-3
S~mDle Descri~ttcn: PROJECT: 601 EUREKA: 1-:5' (SOIL) 03-19-9= ~RCM 0~00 ~nS TO 1530
Hn~ COLLECT=D S~ J.R. WiL3ON
T~ST ~THOD: TP~ by D.O.~.S. / L.U.F.T. Manual Me~hod - Modifiod EPA
In~-v~-dual coneUi~uen~s by E~A Mc~hod $030/B020.
'1
Date
Sample
Da=e
0~/30/~
i
I
I
Analysis
Toluene 390.
o-Xylems 230.
m & ~-Xylene 960.
Minimum
m~,/k~ 100.
mi/kS 10.
mg/kg I0.
m~/k~ ~0.
mg/kg 2000.
I
I
I
Cali£o~nia D,O.H,S, Cer=,
High reported PQL d~,e to high co,~centr~tlons o~ .targe,.. 9~alytes in sam~e,
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~e~ro~eum H~oc~bonm
WIL~0N & ASSOCIATES Da=e o~
2217 "9" STREET "' Repot=: 03/2T/92
~K3~RS~I~LD, CA 93301 Lab ~: 2517-6
At=n.: JOHN 'R? WILSON 323-6460
S~-,ple Descrlption: PROJEC£: 601 EURgKA: 1-30' {SOIL) 03-19-92 FROM 0~00 HRS TO 1530
HRS COlLeCTeD BY J.R. WILSO~
T~ST i~ZTKOD: T~H b~ D.O.H.S. / L.U.F.T. ~nual Me~hod - Modified EPA
2ndi¥1~u~! ccn~i~uen~ by E?A ~e~hcd 50~0/00~0.
Sample Matrix: Soil
Da=e
Date
Received · Lab:
Analysis
Comple=ed:
Benzene None
Toluene
m & p-Xylene 350. mg/k~ 2,
T~=al P~=oleum
}lydroca=bons (gas) 3100. m~/icg 500.
Nots:
High reported PQL duo ~o high concentrations of targe~ gnalytos in samp~.e.
Califo~nia D,0,M,~. Cer=. ~!186
Depar:msn: Supervisor
I
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WILSON & A~SCCrATES
A~:n.: 'JOHN R.'WZL~ON
322-6~60
Lab ~: 2~17-9
San~!e Dascription~ 9ROJECT: 60l ~UR~K.A: 1-4~: (SOIL) 0~-19-92 FROM 0~O0 HRS TO ~530
h~S COLLECTED ~¥ j,~, WILSON
TE-~T.~T~OD: TPH by D.O.~.$. / L.U.F.T. Manual M~thod Modified EPA ~015
!ndividu&l constituents b%- T~A Me~hc~
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Date ~ampla
Collected:
.~onstituent~.-
o-Xylene
Total Petroleum
~ydroc&rbon$ (~as)
03/19/92
o~/:~1~2
H£aimum
5,
~60. mg/kg 5. ,
75. m~/kF 5, '
1~0. -- m~/k~ 5.
250. m~/'k
]ooo. ms/kF ~oo0.
I
I
H{gh reported PQL due to high
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I
WILSON & ASSOCI~TE~
2217 "~ STREET
BAKERSFIELD, Ck 9330~
~b~n.: JOHN R. WILSON
Pe=rO!eum ~ydrocarbons
" Report: 03/31/92
Lab ~: 2517-~2
313-6460
Sample Description: PROJECT: ~01 ~EKA: 1-60' (~OiL) 03-1~-~2 ~ROM 0800 KRS TO 1530
TEST METHOD: TPH by D.O.M.$. / L.U.~.T. ~anual Me:nod - ~o~i£ied EPA 8al~
Indivi~u&l constituents by ~A ~e~ho~ 5030/~020.
I
I
Sampi~ Matrix:
Date Sample
Collected:
Benzene
Toluene
~hyl Benzene
o-Xylene
m & p-X¥1ane
To,al
Lab:
Analysis
Completed:
~naly~is ' ~eportkng Reporting
_~ Reaul~ Onl=~ Level
~10. mg/ks 30.
L300.
300. m~/kg
4~0. " mg/k~ 20,
2=00. mg/kg 20.
I
I
lllgh reported PQL due to high conc~ntrt~tion~ 6f ~a~ge~ analy~e~ in ~a,npte.
I
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I
California D.O.E.$.
I
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I
I
Attn.: JOHN R. WILSON
Sample Deecriptlon: PROJECT: 60] EUREKA: 1-75' (SOIL) 03o19-92 FROM 0~00 HR$ TO 1530
MRS COLLECTED BY J.R, WILSON
~'~ST F.E_~I-.:OD: TP~ b~ D.O.M.S. / L.U.F.T. Manual Method - Mcdi.'~.sd EPA 8015
I
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I
Date Sample
Collected:
Toluene
o-Xylen~
m & p-xylenm
Total
Data S~mple
Comple=ed;
Anm!ysls Reporting Reportin~
None Detected mg/kg 0.005
None Detected mg/k~ 0,005
Non~ D~acted mg/kq O,OO5
Nons D~taCted " m~/kg 0,005
None De=ected m~/k~ 0.005
None
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California D.O..~.S. Cer~..
Dep~£%men~ 5upervi~or
I
I
Petroleum Hydr¢carbons
STREET Report: 03/31/9~
BAJtER$?~EL~, CA 93201 Lab ~; ~5%7-16
JO~N.R. WILSON 3=3-6660
m
Sample Description: ~ROJECT: 601EURRKA: 1-80' (S0IL) 0~-19-~2 FROM 0800 HRS TO 1530
~RS COLL~CTED BY J.R. WILSON
TSST METHOD: TPH by D.0.H.~. / L.U.?.T. Manual Me=hod - Modified
individual constltuenta b~ E~A Me=hod §030/8010.
m
~ample Matrix: Soil
Dane Sampl~
Collected:
0~/~/~:
DaSe Analyeie
C~mple=ed:
Analysis Repor=£ng Repor=img
!
!
Benzene
TOluene
E~hyl Benzene
o-Xylene
m &
Total ~etrolsum
None Deteoted mg/k9
Non~ Detected m~/W9
None Detected mo/k~
Ncn~ Detected mg/k~
0,005
0,005
0.005
0,00~
0,005
m
m
m
m
Cal~ornia D.O.H.S, Cern, ~llS6
m
m
ilo. 5
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WILSON & A~SCCiATEfl
2217 "E' STREET "'
~AK"ZRSFiELD, CA 93301
~Utn.: '.JOHN R. WILSON
3=3-6460
Repcrt: 03/31/~
Lab ~; 2517-17
Sample DescripCioa: 9ROJ~CT: 60! EUREK3~: I-~5' (SOIL) 03-19-9~ FRON 0800 HR$ TO 1530
HRS COLLUCT=D ~Y J.R. WILSON
TEST METHOD: TPH by D.O.M.3. / L.U.F.T. ~anual Methcd- Modified EYA 8015
Individual constituents by EPA Mechod 5030/~0~0.
Sample Matrix: Soil
Sample
Collected:
Sample
Received ~ Lab:
0~/=9/~:
Com9!e=md:
Analys~s Repot=lng
Toluene · 0.0{7 mg/kg
Ethyl Ben~ne ~one De~oc~ed mg/kg
o-X~lene ~n% De,acted " mg/k~
m & p-Xylene 0.01~ mg/k9
To=al Petroleum
HydrocarBons (~as) None De=ec~ed m~/kg
M~nimum
~.por%~ng
_ Level
' O'.'OOS
0.005
0.005
0.005
O. 005
.1.
California D.O.}[.S. Cert.
Petroleum Hydrocarbons
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WILSON & ASSOCIATES
2217 ."E" STREET
BA/CERSFIELD,'Ck 93301
Attn.: JOHN R.~ WILSON
323-6460
Date of
Report: 04/06/92
Lab $: 2576-1
Sample Description: CALIF. SHEET MET3~L: ! 90' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Col!ec~ed:
03/20/92
Constituents
Date Sample
Received ~ Lab:
03/23/92
Date Analysis
Completed:
04/05/92
Minimum
Analysis Reporting Reporting
Results Units Level
Benzene 0.084 mg/kg 0.005
Toluene 0.16 mg/kg 0.005
Ethyl Benzene 0.049 .- mg/kg 0.005
o-Xylene 0.026 mg/kg 0.005
m & p-Xy!ene 0.062 mg/kg 0.005
Total Petroleum
Hydrocarbons (gas) None De~ected mg/kg 1.
California D.O.H.S. Cert.
Departmen~ Super,~i ~or
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Petroleum Hydrocarbons
WILSON ~ASSOCIATES
. 2217 ."E" STREET
iBD/x~.RSFI~--LD,'.CA 93301
Attn.: JOHN Rt WILSON
323-6460
Date of
Report: 04/06/92
Lab $: 2576-2
Sample Description: CALIF. SHEET ~iETD~L: 2 - 15' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST ~iETHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Da~e Sample
Collected:
'03/20/92
Daue Sample
Received ® Lab:
03/23/92
Date Analysis
Completed:
04/05/92
Minimum
Analysis Reporting Reporting
Constituents Results Units Level
Benzene .- 1000. mg/kg 5.
Toluene 1500. mg/kg 5.
Ethyl Benzene 340. ~' mg/kg 5.
o-Xy!ene 480. mg/kg 5.
m & p-Xytene 2000. mg/kg 5.
To~al Petroleum
Hydrocarbons (gas) 12000. mg/kg 1000.
High reported PQL due to high concentration of target analytes.
California D.O.H.S. Ceru. $1186
Deparumenu Supervisor
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Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BAKERSFIELD, CA 93301
A~tn.: JOHN Ri WILSON
323-6460
Date of
Report: 04/06/92
Lab ~: 2576-4
Sample Description: CkLIF. S~FEET ~T~L: 2 - 30' (SOIL} 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST M~THOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Me~hod 5030/8020.
Sample Matrix: Soil
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Da~e Sample Date Sample Date 3%nalysis
Collected: Received ~ Lab: Completed:
03/20/92 o3/23/92 04/05/92 '
Analysis Reporting
Constituents Results Units
Benzene 0.2 mg/kg
Toluene 1.2 mg/kg
Ethyl Benzene 4.7 mg/kg
o-Xylene 39. mg/kg
m & p-Xylene 10. mg/kg
Total Petroleum
Hydrocarbons (gas) 400. mg/kg
Minimum
Reporting
Leve 1
-0.!
0.1
0.1
0.1
0.1
200.
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High reported PQL due to high concent?tions of target analytes.
California D.O.H.S. Cert. ~1!86
Depar-~ment Suoervisor
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WILSON &ASSOCIATES
2217 "E" STREET
BA/{ERSFIELD, CA 93301
Attn.: JOHN R. WILSON
323-6460
Date Reported: 04/03/92
Date Received: 03/23/92
Laborato?f No.: 2576-4
Page
Sample Descri0tion: CALIF. SHEET METZkL: 2 30' (SOIL)'03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
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Constituents
TOT3~L CONT~/~IN~klCTS
(Title 22, Article !1, Ca!ifo~--nia Code of Regulations)
Samule Results Units
Method
P.Q.L. Method
Lead 3.9 mg/kg 3.5 SW-6010
Regulatory_.
Criteria
STLC TTLC
mq/L mc/kc
5.0 1000.
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Comment:
P.Q.L. =
STLC =
TTLC =
Ail constituents reported above are in mg/kg (unless otherwise stated) on
an as received (wet) sample basis. Results reported represent totals
(TTLC) as sample subjected to appropriate techniques to determine total levels.
Practical Quantitation Limit (refers to the least amount of analyte detectable
based on sample size used and analytical technique employed.
None Detected (Constituent, if ~resent, would be less than the method P.Q.L.) .
Soluble Threshold Limit Concentration
Total Threshold Limit Concentration ,
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REFERENCES:
SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods",
SW 846, Septentber, 1986.
Depar~men~ Super~;isor
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'Petroleum Hydrocarbons
WILSON & ASSOCIATES
2217 "E" STREET
BA/<ERSFIELD, .CA 93301
Attn.: JOHN Ri WILSON
323-6460
Date of
Report: 04/02/92
Lab ~: 2576-6
Sample Description: CALIF. SHEET ~!ET3%L: 3 25' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.~. WILSON
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TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Constituents
Date Sample
Received ® Lab:
03/23/92
Date ~%na!ysis
Completed:
04/01/92
Minimum
Analysis ReporTing Reporting
Results Units Level
Benzene 400. mg/kg' .100.
Toluene 3900. mg/kg 100.
E~hy! Benzene 800. .mg/kg 100.
.o-Xylene 1500. mg/kg !00.
m & p-Xylene 2700. mg/kg 100.
Total Petroleum
Hydrocarbons (gas) 30000. mg/kg 20000.
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High reported ?QL due to high concentFations of target analytes in sample.
California D.O.H.S. Cerz.
Depar~men~ Supervisor
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Petroleum Hydrocarbons
WILSON &ASSOCIATES
2217 "E" STREET
BA/~ERSFiELD,..CA 93301
Attn.:-'JOHN R. WILSON 323-6460
Sample 'Description: CALIF. SHEET METAL: 4
Date of
Report: 04/07/92
Lab $: 2576-7
30' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
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Sample Matrix: Soil
Date Sample
Collected:
03/20/92
Date Sample
Received % Lab:
03/23/92
Date Analysis
ComDleted:
04/06/92
Constituents
Analysis
Results
Reporting
Units
Reporting
Level
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Benzene
Toluene
Ethyl Benzene
o-Xy!ene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
None Detected
None Detected
None Detected
None Detected
None Detected
None Detected
mg/k9
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
0.005
0.005
0.005
0.005
0.005
0.1
California D.O.H.S. Cert. ~!!86
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Deparumen~ Supervisor
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Petroleum Hydrocarbons
WILSON &ASSOCIATES
~217.."Ef_.STREET
BAKERSFIELD, .CA ~3301
Attn.: JOHN R'. WILSON
323-6460
Date of
R~port: 04/01/92
Lab $: 2576-8
Sample Description: CALIF. SHEET ~/ET3LL: 4 - 40' (SOIL) 03-20-92 FROM 0800 TO 1700
COLLECTED BY J.R. WILSON
TEST ~THOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
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Sample Matrix: Soil
Date Sample
Collected:
03/20/92
DaZe Sample
Received $ La~:
03/23/92
Date Analysis
ComDleted:
03/3!/92
Minimum
Analysis Reporting Reporting
Constituents Results Units Level
Benzene None Detected mg/kg 0.005
Toluene None Detected mg/kg 0.005
Ethyl Benzene None Detected ~' mg/kg 0.005'
o-Xylene None Detected mg/kg 0.005
m & p-Xylene None ,Detected mg/kg 0.005
Total Petroleum
Hydrocarbons (gas) None Detected mg/kg 1.
California D.O.H.S. Cert. ==1186
Deparument Supervisor
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Petroleum Hydrocarbons
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WILSON &ASSOCIATES
2217 "E" STREET
BAKERSFIELD,.CA 93301
Attn.: JOHN ~. WILSON
323-6460
Sample Description: CALIF. SHEET METAL: 5 15'
COLLECTED BY J.R. WILSON
Date of
Report: 04/07/92
Lab ~: 2576-11
(SOIL) 03-20-92 FROM 0800 TO 1700
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TEST METHOD: TPH by D.0.K.S. / L.U.F.T. Manual Method - Modified EPA 8015
Individual constituents by EPA Method 5030/8020.
Sample M~trix: Soil
Date Sample
Collected:
03/20/92
Constituents
Benzene
Toluene
Ethyl Benzene
o-Xylene
m & p-Xylene
Total Petroleum
Hydrocarbons (gas)
Date Sample
Received ~ Lab:
03/23/92
Date Analysis
Completed:
04/06/92
Analysis Reporting
Results Units
0.01! mg/kg
0.017 mg/kg
None Detected mg/kg
None Detected mg/kg
None Detected mg/kg
None Detected mg/kg
Minimum
Repor=ing
Level
0.O05
0.OO5
0.OO5
0.005
0.005
!.
California D.O.H.S. Cert. 51186
Deparument Supervisor
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,// ~. ~o'.
i · N.
~ ~ ~ ~ '~ .... ~ i ·
'1 ~~"-~'~ '"~
APPROX~MAT~ LOCATION ~~
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john M. Mc._,auley
California Sheet Metal
,,0c': CountP/C;ub Drive
Bakersfieid, CA 93306
Dear Mr. McCauley:
The site assessment repo~, recsived on Seotember 23, 1992. for the California Sheet
Metai'faciiity located at 601 Eureka Street i~as Ween reviewed. This report., comoieted
by John R. Wilson and Assccia~.es, recommends additional tesdng 0e accomoiis;~ed in
order to assess the full e~ent of the contamination plume. We concur! Furt%ermore.
it is recommended that the hydrocarbons.in the soil (as gasoiine) be remcved ,.;sing
vapor extraction.
With the submittal of a satisfactory corrective ac,ion plan, meeting ail of the requirements
of Section 2725(c) Arqcte 11, Title 23 CCR, it is anticipated that vapor e~rac:ion wcu!d
be found an acceptable means of mitigation.
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The ne~ step must be to complete the sampling necessary to define the full e,%ent (both
ve~ical and lateral) of the contamination. These results as well as a corrective action
plan must then be submitted to this office.-
The high concentrations of product in the soil indicate a good likelihood of plume
migration. It is important that you proceed in a timeiy manner to minimize the risks
the environment, as well as, the overall economic aspects of the clean-up.
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Sincerely yours,
/Ralph E. Huey
,/ Hazardous Materials Coordinator
REH/ed
Gary J. Leery GJL Environmental
4009 Fairwood S~.reet
'Bakersfield, CA 93306-1310
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INVITATION FOR BIDS
Consulting engineers, geologists, and other professional
firms experienced in the field of underground storage tank correc-
tive action work are being invited to submit bids to conduct a
Soil and Water investigation (23 California Code of Regulations
["CCR"] § 2725) for Job_n M. and Deanna J. McCau!ey ("Owners").
A. Objective
The objective of the work is to car~¢ out a full Soil and
Water Investigation, as defined in 23 CCR § 2722(a)(2), at 601
Eureka Street, Bakersfield, Ca!ifoL-~ia (the "site").
initially, the work will involve im~.!ementation of the recom-
mendations for further investigation set fo~h at page 9 of a
written report .of Preliminary Site Characterization of Gasoline
Imp. acted Soil, dated September, 1992, ~nich recommendations were
endorsed by the City of Bakersfield on November 16, 1992.
B, Back=round
Owners own the site. Prior to December 17, 1991, the site
contained one underground gasoline storage t~k, with a capacity
of approximately 550 gallons, which was used to refuel service
~rucks used in a business conducted by Mr. McCau!ey known as
Ca!ifor~ia Sheet Metal. The site is currently under lease to the
Ke_~n, Inyo, and Mono Counties Sheet Metal Joint A~.prenticeship am.d
Training Trust for the operation of a pa,-a-time apprentice school.
Owners retain the legal right of access to the site for the purpos-
es of conducting corrective action.
A site map is attached hereto as Exhibit A. The site is
situated within a developed urban and commercial area. Nearby
prope~ies are primarily commercial businesses along both sides of
Eureka Street, a~d residential areas to the south. The overall
site topography is essentially flat.
Soil deposits in the area of the site include alluvial sedi-
ments of the Kern River Formation, which dip to the southwest.
The deposits are alluvium, consisting of poorly graded fan depos-
its. A!!uviumwas encountered in the soil borings adv-=nced during
the PrelLminary Site Investigation.
The depth to the regional unconfined aquifer is approximately
200 feet below surface grade, and groundwater is reputed to flow
to the south. No groundwater was encountered in any of the
borings ad%~unced during the Preliminary Site Investigation, and we
do not anticipate that groLuldmr~ter has been L~actedby the re-
lease.
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P~e 2
The City of Bakersfield is the lead regulatory, agency
("LP~A") , s_nd will continue in that role throughout r_he investiga-
tion and cleanup unless the case is refe_~red to the Regional Water
Quality Control Board.
On Dec,uther 17, !99!, the tank was removed by Caipi, Inc.,
Dursuant-to a t~k r~ov~l pern%it issued by the LRA. Pursuant to
the LR3I's requ_ irements, two saamples were taken from the tank
excavation: one at a depth of two feet below the former center of
the tank, and one at a depth of six feet below the former center
of the ta~. Laboratory. analysis of the two soil samples showed
e!ev~ted levels of benzene, toluene, eth_vLbenzene, xl;.lene,
isopropylbenzene, and TPH (Gasoline). The results ars follows:
2 fe~t below center of
Benzene 44 ug/~
Toluene !70 ug/9
EthyllPenz ene 19 ug/9
p-Xylene 47 u9/9
m, o- Xylene 53 u9/9
Isoprop!z!ben~ene 7.6 ug/9
TP.E-G 8!0 u9/9
6 feet below center of tam~:
Benz erie 98 ug/9
Tolue~le 27 5 ug/g
Ethylbenz ene 23 ug/g
p-Xylene 58 ug/g
m, o-Xy!ene 66 ug/g
IsopropyLbenzene 5.8 ug/g
TPH-G 1,000 ug/9
On January 6, 1992, the LR3k required that further assessment
be done to define the ver~ica! and horizontal extent of the contam-
ir.~tion, k copy of the LP~.'s corrective action order (dated
January_ 6, 1991, in error) is attached hereto as Exi~ibit B.. A
copy of the Unde_~_round Storage Tank Uns_uthorized Release
(Leak)/Contaraination Site Report is attached hereto as Exhibit C.
A Preliminary_ Site Assessment was conducted by Wilson &
Associates, Inc. ("Wi!son") . Six exploratory_ soil borings were
advanced to a m~xinwam depth of 90 feet below surface grade, and 19
selected soil samples were analyzed for TPH-G, benzene,
ethylbenzene, toluene, and xylenes. The results of laboratory_
analysis are summarized in E~ibit D; a site plan setting forth
locations of the borings is attached hereto as E~ibit E. Soil
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Page 3
cuttings produced by the borings are stored on the site t~nmporari-
!y in eight 55 gallon barrels.
The report of Pre!imin~ry Site Assessment was submitted to
the LP~A in September, 1992. On the basis of the data obtained
from the Preliminary Site Assessment, Wilson concluded that soil
impacted with gasoline hydrocarbons and constituents at concentra-
tions i~ excess of Regional Water Quality Control Board recommend-
ed guidelines exist in the area directly beneath the former tank
to a depth of 60 to 75 feet, and laterally approximately 35 feet.
wilson recommended that two additional borings be completed in
order to assess the tate_~a! extent of the contamination. One
boring would be located southwest of Boring B-3 and another boring
would be located nortkwest of Boring B-5 (please refer to Fzck~it
E). A cody of the report is attac~ed hereto as Exk~it F.
On November 16, !992, the LR3~ concurred with Witson's recom-
mend~tions, and directed Ms. McCauiey to com~_lete the sampling
necessary, to defi~e the full extent, both v~ical a~d lateral, of
the contamination, and to submit the results and a Corrective
Action Plan to the LR3~. A copy of the LP_A's letter is attached
hereto as Exhibit G.
Work ~o Be P~rformed
The chosen consultant will be required to provide all m~npow-
er, equipment, supplies, and licenses or permits re_c~ired to
perform the following work. .-
All work performed by the consultant shall be performed in
actor_dance with A~_plicab!e ~equirsments. As used in th/s Invita-
tio~ for Bids, "~4Pplicable Requ_irsments" refer to Californ/a
~ealth & Safety Code ~ 25299.37; the "Corrective Action ~e_~uire-
ments," Article l!, Chapter !6, Div~_sion 3, Title 23, of the
California Code of Re.~ulations; and all relevant statutes, ordi-
na~lces, recJulations, rules, plans, policies, requ_ire_ments, and/or
guidelines prescribed by the Legislature, the LR~, the State Water
Resources Control Board, the Central Valley Regional Water Quality
Control Board, or other re!ev~t gove_~nmental authority.
Task 1 Pla~i~q a~d Per.its
Witkin !5 days following notification of acceptance of bid:
Conduct any additional site background investi-
gation wkich is necessary in order to obtain
the information needed to carry out the field
work and prepare tke site background section
of the report described in Task 5.
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Page
Prepare a health and safety plan in accordance
with Applicable Requirements.
Co
Prepare a workplau for the Soil and Water
Investigation, which shall include an adequate
description of the actions to be performed
(including, without limitation, the prepara-
tion of a Corrective Action Plan) and a sched-
ule for their comp_letion.
Do
Submit the health and safety plan and the
workplem to the LRA for its review and approv-
al.
Task 2 Soil Boring and Sampling
Drill the soil borings that the consultant has
determined are re_cuired for the Soil and water
Investigation (as stated in the consu!~s~t's
bid and described in the work-plan).
B. Take soil samples according to the work-Dian.
The perforn~mce of Task 2 shall commence within 15 days
following the first to occur of (!) the LR~'s approval of the
work-plan or (2) the expiration of 60 days following the submission
of the work-p_lan to the LRA (23 CCR ~ 2722(e).
Take 3 Interim ~emedia! Action
Treat and/or dispose of any conts~ninated soil
produced by drilling, including, without
!imita=ion, the existing cuttings.
Conduct other interim r=_~edia! actions as and
if needed.
Task 4 Laboratory Analysis
Deliver all soil samp_les to an ana!y~ical
laboratorlz, certified by the State of Califor-
nia for hazardous materials work. The sa~!es
shall be handled according to appropriate
"Chain of Custody" procedures. In addition,
any duplicate samples, trip bl~ks, or other
QA/QC measures which are prescribed by A~plica-
b!e Requirements or are otherwise necessary in
order to validate the results of laboratory
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Page 5
analysis of the sempe!es shall be obtained or
followed. The samples s~hal! be analyzed for
Total Petroleum Hydrocarbons (Gasoline), BTX&E
(benzene, toluene, xy!ene, and ethyLbenzene),
a~nd a~_¥ other substance or compound specified
by the LRA in reviewing the work~p, lan.
Task 5' ~ Report Preparation
Prepare a tecDn~ica! repor~ which documents the
above activities and analyzes/discusses the
data collected, including (without limitation)
a Corrective Action Plan which meets the
requ_ ireme~ts of 23 CC~ § 2725, and send four
copies of the report to Mr. and Mrs. McCauiey,
in care of their attorneys, B.vrmm, ~olland &
Griffin, Post Office Box 2348, Bakersfield,
California 93303-2348. The report shall
include an executive sun, nary of investigation
activities and results, a tabulation of all
soil and ground water data, laboratory data
sheets, and any recommendations for further
work if the data warrants it.
Meet with LPd%personne! at least once, if
required, to discuss any report deficiencies.
Consu!t~nt s~ha!l correct any report deficien-
cies and submit a revised report to the LR~
for review.
D. Bidding Re~cuir~ents
Prospective consultants must be agreeable to or meet the
following specifications:
The consu!ta~t shall have at least five years
exp. erience conducting u~derground storage tank
corrective action work im California.
The consultant shall employ qualified persons,
subcontractors, and laboratories ~o perfo~n
the work described above, including licensed
geo!ogis~s and other teci~ical professior~!s,
as appropriate, and possess all necessary
!ictuses to operate within the Sta~e of Cali-
fornia and the City of Bakersfield. A list of
qualified persons, subcontractors, and !abora-
zories who will pe_~f_orm the work mus~ accomp_a-
my a~y bid s~brai~ted.
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Page 6
The consultant must carry out the described
work in a timely, professional, safe, and
leqa! m~er and maintain necessary records
and other safeguards to ensure that reported
sample results are accurate. All work must be
performed in a manner acceptable to the LRA,
and with reasonable diligence. Consultant
s,halt submit the Corrective Action Plan to the
LR3% within 60 days following the co~%~encsment
of field work or by such earlier date as the
LP3k shall specify.
The consultant must maintain general liability
insur$~e in the amount of not less
$500,000, and professional e~ors and omis-
sions liability insurance in the amount of mot
less tha~ $500,000 for the life of the pro-
ject. Owners shall not be responsible for the
cost of any associated premiums. Proof of
such insurance shall be furnished to Owners
prior to the start of work·
Work shall be performed in a m~r~er which will
not require the cessation of business at the
site unless absolutely necessary or dictated
by the LRA.
Consultant shall provide a co_c~; of the
consultant's sts~dard services agreemen~ and
schedule of charges with a~y bid subraittGd.
The schedule of charges shall include (t)
hourly rates for personnel classifications
employed by consultant, (2) umit charges for
co~n supplies ~d e_quipme~ used in correc-
tive action work, and (3) multipliers used
when charging any other direct exp_enses (e.9.
subcontractors and laboratories).
The consultant's bid shall be in writing and
s~l! co~orm to the terms and conditions of
this Invitation for Bids. The bid shall
describe in reasonable detail the actions to
be performed by the consultant and sta~e the
charges for perfomning those actions (inc!ud-
ing, without limitation, the two soil borings
recommended by Wilson, the health and safety
plan, work-plan, Corrective Action Plan, and
any other tsc.h~ica! reports). The bid shall
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Page 7
also state the per unit basis on which charges
will be made by the consultant for performing
any additional actions which may become neces-
sary in order to com~_lete the Soil and Water
investigation. The consultant shall not
perform any work which is not described
in the consultant's written bid without
the prior express authorization of Own-
ers, which authorization must be in
writing, except in the case of emergen-
cy.
Consultant understands that Owners rese_~ve the
right to reject any or all bids without notice
or cause. Owners retain the right to solicit
and accept additional bids as necessary in
their j udgraent. Ail bids are due on or
before January 5, 1993.
o
Consultant understands .that Owners intend to
seek reimbursement for the subject work from
the Underground Storage Tank Cleanup Fund
administered by the State water Resources
Control Board, and will agree to respond to
any reasonable inquiry from that agency, regard-
ing any claim submitted by_ Owners.
E. Invoices
Consultant shall submit a det~i!ed invoice to Owners for
pa.vment at the conap!etlon of the project. The invoice shall
specify the actual costs incurred. The invoice for consulting
services s~ha!l reference the specific subagreemenu and task for
which the costs were incurred, in addition, the invoice should
include when the services were performed, a breakdown for direct
labor, indirect costs, travel, equipment, material, and supplies,
and subcontract work. The invoice should be submitted in dupli-
cate.
F. Contents of Bid
Responsive bids will include all of the following items: (1)
a list of qualified persons, subcontractors, and laboratories who
will perform the work, (2) the consultant's standard services
agreement and schedule of charges, and (3) a comp. leted, signed
bid.
A Site map
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B
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D
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Ld~A's corrective action order
Under,round Storage T~uk Unauthorized Release (Leak)/
Contamination Site Report
Results of laboratory analyses
Site plan
Prelimina_~y Site Assessment report
LRA's suppl~mental order dated November 16, 1992
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X
F1RE DEPARTMENT
$. D. JOHNSON
m FIRE CHIEF
CII~ / Of BAKt~R$1=I~,LD
"I, VE C,4R£"
January 6, 1991
5101H STREET
BAKERSFIELD. 93301
326-3911
!
!
John M. McCau!ey
California Sheet Metal
4297 Country Club Drive
Bakersfield, CA 93306
!
!
RE:
Laboratory results from preliminary site assessment
conducted at the property located at 601 Eureka Street
Bakersfield, CA.
Dear Mr. McCauley,
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Upon review of the recently submitted laboratory results from your
facility, this office has determined that the extent of the
contamination plume has not been adequately defined.
This Office requires (in accordance with chapter 6.7 of the
California Health and Safety Code and chapter 16, Title 23 of the
California Code of Regulati%ns) that further assessment be done to
define the vertical and horizontal extent of the contamination
plume.
Please submit a work plan for further assessment, to this office,
with in 30 days from receipt of this letter. The work plan should
follow guidelines found in: ADDendix A - Reports, Tri - ReGional
Board Staff Recommendations for Preliminary Evaluation and
InvestiGation of UnderGround Tank Sites; January 22, 1991.
If you have any questions, please call me at (805) 326-3979.
Si cer .!y~
Joe A. Dunwoo~
Hazardous Material Specialist
Underground Tank Program
EXHIBIT ,q
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UNDERGROUND STORAGE TANK UNAUTHORIZED RELEASE (LEAK) / CONTAMINATION SITE REPORT
I
~ J.
ADORESS. ' .
4009 ' ~'a't r;~::o:! S ~t-,,a~. ~~ ~ 93~6
~1 ~ME ~NT~TPE~ON
J~ M. ~,~1~ ~ ~ . C~' J. ~ , (~5) 87~-~43
601. " ~ ~ ~ ~ ~~ ~~ 93305
~E~ ONE
~; .......
T~_BLF - !
SU~iM_%~qY OF LA2~D~TORY AN~LYTICA~L DATA
(v~lues in mil!igr~m~ per kilo~m)
m
J
d
TP~ E=hyi- Toual
$ammia 0e~h Ge$o!Lne Benzene Toluene Bene=o-o '- '=- -
..... fy .... e~ Lead
~ 5 6000* ND :'- 310.' . 50..T- 600.*
, '~5 ' ~ooo, ........ ~'.~' 'J ~o.~ '" ~'~o'.? .... J.' ~'~0'.-
i 30 3!00' ND 86 ~ 7!.~' ]50.~
i 45 3000' 5.*-~' !60.' 75.' 250."
! -50 13000' LlO.*~' !300 ' 300.' 2100.-
! 75 ~O ND ND ~D ~D
! 85 ND MD j; 0.047 ND 0.0!4
'' ! 90' ~D 0.0~ 0.!~ 0.049 0.062
~ ~c, !2000.' 1000.*% 1500 * 340.* 2000.'
2 30' 400. 0 ~ 1.2' 4.7 39. 3.9
3 2.5' 30000~ 400 .'"-. 3400' 800.~ 2700
4 30' ~D ~D ~D ND ~D
~ 40" ~D ~D .~ ~D ~D ~D
5 15' ND 0.0~Z 0.017 ND ND
5 40' 7000* 42.'[ 540.' 160.' 510.*
ND ND ND 3
~ 20' ~D ~D .." -
6 30' ND ND ~ ND ND ~D
6 40' ~D ND ~ 0.008 ND 0.0!0 9.3
M~£ N/k !.0 0.005 0.005 0.005 0.005 2.5
AL N/A !000 !.0' 1.0 50.0 50.0 i0O0
d
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ND: None Detected at or above m/nimum reporting level.
NA: .Not Applicable.'
M~LL: M/nJnnt~: Reporting Level.
*: exceeds ct~-rent recommended g~idelines
A~: .Regional Water Quality Control Board recommended guidelines
for contaminants in soil. The recommended guidelines, were
calculated using the ~ methodology by multiplying the most
stringent cttrrent federal or state water quality standards by
a factor of l,OO0 to accou/lt for att~_nuation due to soil
composition and distance from g]roundwater.
EXH BIT 0
SITE
PLAN
tl
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APPROXIMATE LIMITS
OF CONTAMINATION.
EXHII~I]' E