HomeMy WebLinkAboutMITIGATION (3)A RESNA Company Environmental Solutions
1500 SO. UNION AVE.
BAKERSFIELD, CALIFORNIA 93307 Through Applied Science,
General EngineeringContractor Engineering & Construction
Class A/Haz License No. 609572
AUTO CLUB OF
SOUTHERN CALIFORNIA
2301 F Street
Bakersfield, California
SITE ASSESSMENT REPORT AND
REMEDIAL ACTION PLAN
February 24, 1992
Report prepared for
AUTO CLUB OF SOUTHERN CALIFORNIA
2601 South Figueroa Street
Los Angeles, California 90007
by
RESNA/Groundwater Resources Inc.
Marc H. Selover
Project Manager .....
.-. ./;. /?" ~ .,,~ ~o. 720
Registered Geologist g'/20 ~?i~.~,~h~.
FAX ( 8~)5)835--7717
I
I AUTO CLUB OF
SOUTHERN CALIFORNIA
I 2301 F Street
Bakersfield, California
I TABLE OF CONTENTS
i SECTION DESCRIPTION PAGE
1.0 INTRODUCTION ...................................................................... 1
I 2.0 BACKGROUND ........................................................................ 1
3.0 AREA GEOLOGY AND HYDROGEOLOGY ........................ 2
4.0 FIELD WORK AND METHODS ............................................. 3
I 4.1 Soil Borings and Soil Sampling ..................................... 3
4.2 Field Screening ............................................................... 3
4.3 Boring Locations ............................................................ 3
I 4.4 Backfilling of Boreholes 4
5.0 LABORATORY ANALYSES AND RESULTS ....................... 4
6.0 DISCUSSION ............................................................................ 4
I CONCLUSIONS ........................................................................ 5
7.0
8.0 RECOMMENDATIONS ........................................................... 5
9.0 REMEDIAL PLAN .................................................................... 6
I 9.1 Vapor Extraction Wells .................................................. 6
9.2 Pilot Test ........................................................................ 6
i 9.3 Phase I Abatement .......................................................... 7
9.4 Phase II Abatement ........................................................ 7
9.5 Progress Reports .......... ................................................... 7
I 10.0 HEALTH AND SAFETY ' 8
' 11.0 PROPOSED SCHEDULE .......................................................... 8
12.0 LIMITATIONS .......................................................................... 8
I 13.0 REFERENCES ........................................................................... 8
ILLUSTRATIONS
I Table 1 Soil Samples Laboratory Analysis Results (ppm) ................... 1
Table 1 Soil Samples Laboratory Analysis Results (ppm) ................... 4
I Plate 1 Location Map
Plate 2 Site Map
i Plate 3-7 Logs of Borings
Plate 8 Cross Section
I APPENDICES
Appendix A Chain of Custody and Laboratory Results
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SITE ASSESSMENT REPORT AUTO CLUB OF
& REMEDIAL ACTION PLAN SOUTHERN CALIFORNIA
"
1.0 INTRODUCTION
At the request of the Auto Club of Southern California, RESNA/Groundwater Resources Inc.
(RESNA) has conducted a site assessment to evaluate the nature and extent of hydrocarbons in soil
at the former Auto Club site at 2301 F Street in Bakersfield, California in response to the detection
of hydrocarbon-bearing soil during a real estate assessment at the site. The work for the investigation
was conducted in accordance with the RES NA Workplan dated January 13, 1991 and included drilling
five soil borings, collecting and analyzing soil samples, interpreting the data, and presenting our
conclusions and recommendations. Remedial alternatives have been evaluated and a remedial action
plan is also presented.
2.0 BACKGROUND
The site is located southwest of the intersection of F Street and 24th Avenue as shown on the Location
Map, Plate 1. The results of a Phase I real estate assessment conducted by RESNA showed that a
gasoline service station previously operated in the northeast section of the According to the
property.
City of Bakersfield Building Department, the station was demolished in 1977. There are no records
available regarding underground tank removal or abandonment.
On October 21, 1991, a geophysical survey was conducted at the site by Spectrum Environmental
Geophysics of San Fernando, California to evaluate for underground tanks. The total field magnetic
and the ground penetrating radar (GPR) methods were used. Two magnetic anomalies were detected;
however, the GPR signatures of the anomalies did not indicate the presence of underground tanks.
On November 14, 1991 as part of a Phase II investigation by RESNA, three soil borings were advanced
to enable evaluation of for possible hydrocarbon impacfions. The borings (B-1, B-2 and B-3) were
advanced at the approximate locations depicted on the Site Map, Plate 2. B- 1 and B-2 were advanced
to depths of 20 feet and B-3 was advanced to 40 feet. Soil samples were collected and logged at five-
foot intervals and were evaluated for hydrocarbons with a photoionizafion detector (PID).
On the basis of PID-readings, six samples were submitted for laboratory analysis. The laboratory
reported low-level hydrocarbons in four samples with the highest concentration reported in samples
from boring B-1. On the basis of these results, boring B-1 was deepened to a depth of 45 feet on
November 22, 1991 and the soil sample collected from 45 feet was submitted for laboratory analysis.
These results and the previous results are summarized in Table 1.
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: ~ ~A !~E!~ii i::i::i::i::i::i::i::i::i::i::i::!::?:?:!::!i!::!!!::!!::!!!!!! !!i ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
Sample Ethyl- Total
Location Benzene Toluene benzene Xylenes TPH TOG
B-l, 10 ft ND ND 0.0050 0.062 1.0 ND
B-l, 20 ft 0.32 0.18 0.35 1.82 130 14
RESNAJGROUNDWATER RESOURCES INC. FEBRUARY 24, 1992/Page 1
SITE ASSESSMENT REPORT AUTO CLUB OF.
& REMEDIAL ACTION PLAN SOUTHERN CALIFORNIA
Sample Ethyl- Total
Location Benzene Toluene benzene Xylenes TPH TOG
B-l, 40 ft ND 47 43 320 2100 NA
B-2, 10 ft 0.0064 0.044 0.010 0.089 ND ND
B-2, 20 ft ND ND ND ND ND ND
B-3, 20 ft ND 0.0081 ND ND ND 31
B-3, 40 It ND ND ND ND ND ND
NA = Not analyzed; ND=Not Detected; TPH = Total Petroleum Hydrocarbons as gasoline;
TOG=Oil and Grease; ppm= parts per million.
I Based on these results further investigation was recommended and it was recommended that the
Hazardous Materials Section of the City of Bakersfield Fire Department (BFD) be notified of the
hydrocarbon impaction. In a December 2, 1991 letter to the Auto Club, the BFD requested that a site
Iassessment be conducted in accordance with Regional Water Quality Control Board (RWQCB)
recommendations to evaluate the distribution of concentrations of hydrocarbons in soil beneath the
site. The Auto Club contracted RESNA to prepare a workplan and implement this investigation.
I 3.0 AREA GEOLOGY AND HYDROGEOLOGY
I The site is located in the southern of the San broad Structural that
portion
Joaquin
Valley,
a
trough
forms the southern two-thirds of the Central Valley. The valley is bordered on the east by the Sierra
Nevada and on the west by the Coastal Ranges and extends approximately 250 miles southeastward
I from the confluence of the San and the Sacramento Rivers the
Joaquin
to
Tehachapi
and
the
San
Emigdio Mountains. The width of the valley ranges from 25 miles near the Kem River to 55 miles
i near the Kings River and averages about 35 miles.
The site is at an approximate elevation of 402 feet above mean sea level approximately 1.25 mile south
i of the Kern River (U.S. Geological Survey, 1973) and lies on deposits of the Kern River alluvial fan
(Dale, French and Gordon, 1966). The unconsolidated fan sediments that underlie the site are
Quanternary deposits of Sierra Nevada detritus and consist primarily of sand and gravel. The area
Ioverlies a deep structural trough between crystalline rocks of the Sierra Nevada and Tertiary marine
rocks of the Coastal Ranges. Overlying these two broad units and filling the deep structural trough
is a thick mass of Tertiary and Quaternary continental alluvial and lacustrine sediments.
I The groundwater reservoir is within the continental deposits. According to the Kern County Water
Agency, the depth to fa-st unconfined water beneath the site is approximately 155 feet (Kern County
I Water Agency, 1991).
RESNA/GROUNDWATER RESOURCES INC. FEBRUARY 24, 1992/Page 2
SITE ASSESSMENT REPORT AUTO CLUB OF
& REMEDIAL ACTION PLAN SOUTHERN CALIFORNIA
4.0 FIELD WORK AND METHODS
4.1 Soil Borings and Soil Sampling
On February 3 and 4, 1992, five additional soil borings (B-4 through B-8, Plate 2)
I were advanced near the location of boring B-4 to collect soil samples for laboratory
analysis. The borings were drilled with a CME 75 drill rig equipped with 8-inch-
I diameter, hollow-stem augers. Auger flights and sampling equipment were
steam-cleaned before use to minimize the possibility of downhill or crosshole
contamination. Drilling was observed by a field geologist under the supervision of
i a State of California Registered Geologist, and the earth materials in the borings
were logged in accordance with the Unified Soil Classification System as drilling
progressed. Descriptions of the materials encountered are presented in the Boring
I Logs (Plates 3 through 7).
During drilling, soil samples were collected at 5-foot intervals with a Califoruia-
modified, split-spoon sampler equipped with clean brass sleeves. Samples were
collected by advancing the auger to a point just above the sampling depth and
driving the sampler into the native soil. The sampler was be driven 18 inches with
I a standard 140-pound hammer repeatedly dropped 30 inches. The number of blows
required to drive the sampler each successive 6-inch interval was counted and
recorded to give an indication of soil consistency.
I Soil samples selected for possible chemical analysis were sealed quickly with teflon
tape, plastic caps and duct tape. The samples were labeled and placed in iced
I storage for transport to the laboratory for analysis. Chain of Custody Records were
initiated by the geologist in the field and accompanied the samples to the laboratory.
A copy of that document is in Appendix A of this report.
4.2 Field Screening
Soil samples were evaluated with a photoionization detector (PID), which measures
I hydrocarbon concentrations in the ambient air above the soil
or
headspace
sample.
Field instruments such as the PID can be used to evaluate relative concentrations
of hydrocarbon vapor but not with the accuracy of laboratory analysis. The PID
I was on day the work using an isobutylene standard as per
calibrated
the
of
manufacturer instructions. PID-readings are included on the boring logs.
I 4.3 Boring Locations
Locations of the soil borings are shown on Plate 2. Boring B-4 was advanced
i approximately 5 feet west of boring B-1 to enable evaluation of the vertical extent
of the impacfion to auger refusal at a depth of 72 feet. The boring was terminated
without obtaining two non-impacted samples as indicated by PID-readings.
I Borings B-5, B-6, B-7 and B-8 were advanced to enable evaluation of the lateral
extent. Boring B-6 was advanced to a depth of 35 feet, the other three lateral
I assessment borings were advanced to 30 feet.
RESNA/GROUNDWATER RESOURCES INC. FEBRUARY 24, 1992/Page 3
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SITE ASSESSMENT REPORT AUTO CLUB OF
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4.4 Backfilling of Boreholes
Boreholes were backfilled with a cement/sand slurry. Cuttings generated during
drilling were placed in secured 55-gallon DOT drums for storage.
5.0 LABORATORY ANALYSES AND RESULTS
Eight soil samples were selected for laboratory analysis. The soil samples selected were analyzed for
Total Petroleum Hydrocarbons as gasoline (TPHg) by modified EPA Method 5030/8015 and for
benzene, toluene, total xylenes and ethylbenzene (BTX&E) by EPA Method 5030/8020. The bottom
from each well the collected form of 25, 45 and
samples
were
analyzed
boring
as
as
samples
depths
60 feet from boring B-4.
The tests were performed by Applied Analytical Environmental Laboratories in h'vine, California, a
laboratory certified by the State of California for the analyses requested. The detection limits used
were 5.0 ppm for TPHg and 0.05 ppm for BTX&E. Copies of laboratory analytical repons are in the
Appendix A and the results are summarized in Table 2.
Sample Ethyl- Total
I Location Benzene Toluene benzene Xylenes TPH
B-4, 25 ft ND ND ND ND 27
I B-4, 45 ft 1.1 0.3 6.0 43 280
B-4, 60 tt 94 430 900 23 14,000
B-4, 72 It 0.07 ND 0.07 0.05 24
! .
B-5, 30 ft ND ND ND ND ND
B-6,35 It ND ND ND 4.2 360
I B-7, 30 ft ND 0.0081 ND 0.13 38
B-8, 30 It ND ND ND ND ND
I NA = Not analyzed; ND=Not Detected; TPH = Total Petroleum Hydrocarbons as gasoline;
ppm= parts per million.
6.0 DISCUSSION
I The soil profile beneath the site is shown on the boring logs and the east-west cross section (Plate 8).
At an approximate depth of 23 feet in the soil borings a gravelly silty sand was encountered and at an
i approximate depth of 63 a sandy gravelly silt was encountered. These deposits of the Kern River
RESNA/GROUNDWATER RESOURCES INC. FEBRUARY 24, 1992/Page 4
I
SITE ASSESSMENT REPORT AUTO CLUB OF
& REMEDIAL ACTION PLAN SOUTHERN CALIFORNIA
contain rounded cobbles ranging in diameter from 1 to 6 inches. The presence of the cobbles slowed
drilling and prevented advancement beyond a depth of 72 feet in boring B-4. A rotary drill would be
needed for further vertical assessment.
The laboratory results from borings B-1 and B-4 indicate that the gasoline plume beneath the former
three-tank cavity extends to a depth greater than 72 feet. The highest concentrations were reported in
the 60-foot sample collected just above the silt. That sample and the 55-foot sample were damp with
gasoline product. The concentrations reported in the 72-foot sample indicate rapid attenuation with
depth in the silt and the vertical limit of the plume has been estimated to be approximately 80 feet.
Plate 8 shows the interpretation of the limits of the plume and distribution of concentrations of TPHg.
As shown on Plate 2, the plume is believed to be centered on boring B-1 with radial extent of
approximately 20 feet. The volume of impacted soil is estimated to be 2,250 cubic yards containing
an estimated 8,000 pounds of gasoline hydrocarbons.
To evaluate the potential risk to groundwater beneath the site the LUFT Manual leaching potential
analysis can be used. The depth to groundwater is between 50 and 100 feet below the extent of
impaction and average annual rainfall is less than 10 inches. Predominantly coarse soil is beneath the
site that could increase vertical leaching. The LuFr score for this site is 48 which corresponds to a
medium leaching potential. According to the LUFT Manual concentrations of hydrocarbons in soil
th,at can be safely left in place without posing a significant potential risk to groundwater are 100 ppm
for 0.3 for benzene and toluene and 1.0 for total
TPHg,
ppm
ppm
ethylbenzene
and
xylenes.
The volume of soil with concentrations of hydrocarbons above the LUFT recommended levels is
estimated to be 1,5~00 cubic yards. The 72-foot sample from boring B-4 contains concentrations below
the recommended levels.
7.0 CONCLUSIONS
On the basis of the results of the field investigation and laboratory analyses, the following is
concluded:
o Soil has been impacted by gasoline hydrocarbons at concentrations that pose a potential
risk to groundwater and mitigation is warranted.
o The vertical and lateral extents of hydrocarbon-bearing soil have been sufficiently
assessed to enable evaluation of remedial alternatives.
8.0 RECOMMENDATIONS
Active remediation of the gasoline impacted soil is recommended at this site. Remedial alternatives
are excavation and disposal or in-sim remediation.
Hydrocarbons in soil can be rapidly mitigated by excavation. Limiting factors are the depth of
impaction due to equipment capabilities and proximity to above and below ground structures. At this
RESNA/GROUNDWATER RESOURCES INC. FEBRUARY 24, 1992/Page 5
I SITE ASSESSMENT REPORT AUTO CLUB OF
& REMEDIAL ACTION PLAN SOUTHERN CALIFORNIA
site due the depth and the sandy nature of the soil a large volume of soil would need to be excavated.
The limits of the excavation would probably extend beyond the property boundaries onto 24th Street
and F Street. Costs would be prohibitive for this alternative and it is not recommended.
Hydrocarbon impacted soil can be in-sim remediated at this site with minimal disturbance to the site
by soil vapor extraction. Vapors are extracted through vadose wells by a vacuum induced by a surface
blower to volatilize and remove the lighter components of the hydrocarbons. Hydrocarbons are
reduced from the extracted vapors by thermal oxidation or carbon absorption. Remedial objectives can
generally be reached within six to ten months of start-up. Because of the depth and extent of the
plumes, in-situ remediafion by soil vapor extraction is the most cost effective alternative and is
recommended.
9.0 REMEDIAL PLAN
The remedial objective is to mitigate hydrocarbon concentrations to below the LuFr Manual
maximum allowable values for this site by extraction. Hydrocarbon will be initially
vapor
vapors
abated with a thermal/catalytic oxidizer or an internal combustion engine in accordance with Kern
County Air Pollution Control District (APCD) guidelines. If wan'anted, after extracted hydrocarbons
have decreased low levels, the method of abatement will be switched onto
to
to
absorption
granular
activated carbon (GAC).
9.1 Vapor Extraction Wells
It is proposed to install five vapor extraction wells (VW-1 through VW-5) at the
locations shown on Plate 2. The wells will be used to withdraw hydrocarbons from
the vadose plume. VW-1 will be completed to a depth of 70 feet with a screen
interval from 45 to 70 feet; VW-2 will be completed to a depth of 45 feet with a
screen interval from 20 to 45 feet; VW-3, VW-4 and VW-5 will be completed to
a depth of 60 feet with a screen interval from 20 to 60 feet. Wells VW- 1 and VW-
2 will be used for extraction and wells VW-3, VW-4 and VW-5 will be used for air
inlet.
Borings will be advanced to the proposed depths with a hollow-stem auger drill rig
and wells will be constructed in the boreholes with thread-jointed, 2-inch-diameter,
Schedule 40 PVC casing. The screened portion of each well will consist of factor-
perforated casing with 0.020-inch-wide slots. The annular space in each well will
be packed with sorted sand to a point approximately 1 foot above the slotted
interval. A bentonite plug will be added above the sand pack to seal out cement.
The remaining annulus will be backfilled to just below grade with a cement slurry.
The well will be covered for protection by a traffic-rated utilitY box.
9.2 Pilot Test
After well installation a extraction pilot test will be conducted to evaluate the
vapor
effectiveness of the wells and to obtain data for APCD permitting. A draft rate of
25 to 150 cubic feet per minute (SCFM) will be extracted from wells VW-1 and
RESNA/GROUNDWATER RESOURCES INC. FEBRUARY 24, 1992/Page 6
SITE ASSESSMENT REPORT AUTO CLUB OF
& REMEDIAL ACTION PLAN SOUTHERN CALIFORNIA
VW-2 and pressure reduction at the test well and the adjacent wells will be
recorded. An air sample of extracted vapors from each well will be collected and
will be analyzed for TPHg and BTXE.
Hydrocarbon vapors will be reduced by passing through four 55-gallon chums of
GAC before discharge to the atmosphere. The required test permit will be obtained
from the APCD and influent and effluent vapors will be monitored with a PID.
The results of the pilot test will be used to evaluate the radius of influence, expected
hydrocarbon concentrations of the extracted vapors and well performances. Final
selection and sizing of the oxidizer and blower will be made after obtaining these
results. The results of the analyses of well effluent samples will be used in the
preparation of the APCD Authority to Construct application.
9.3 Phase I Abatement
The extracted hydrocarbon will be used to partially fuel thermal/catalytic
vapors
a
oxidizer or 1C-engine. Natural gas or propane will be used for supplemental fuel
and vacuum will be induced by a regenerative or positive displacement blower. The
minimum influent to effluent destruction rate be 99%.
will
During start-up, until stable operation is achieved, the oxidizer will only operate
during the hours of 8:00 A.M. to 5:00 P.M. After stable operation is achieved, the
system will operate continuously. Hydrocarbons emissions will not exceed APCD
requirements. There will be no detectable odors beyond the property boundary and
the extracted vapors will not at any time vent directly to the atmosphere. To verify
abatement and to monitor remediation, air samples will be collected from the
oxidizer exhaust and inlet and the well effluent in accordance with the APCD
permit.
9.4 Phase II Abatement
After concentrations of hydrocarbon vapors in the well effluent reduce to low
levels, the method of abatement may be switched to passing the vapors through
granular activated carbon. The vapors will pass through two in-series canisters of
vapor phase GAC. Vacuum will be induced by a regenerative or positive
displacement blower and the extraction rate will not exceed to 500 scfm.
To verify abatement and to monitor remediation, air samples will be collected and
analyzed from the effluent of the well and each canister. Whenever effluent from
the first carbon canister reaches 10 ugm/cc, the canister will be removed from
service, the second canister will be moved to the first position and a canister with
new or regenerated carbon will be placed in the second position.
9.5 Progress Reports
Reports will periodically be provided to the Auto Club and the BFD summarizing
RESNA/GROUNDWATER RESOURCES INC. FEBRUARY 24, 1992/Page 7
SITE ASSESSMENT REPORT AUTO CLUB OF
& REMEDIAL ACTION PLAN SOUTHERN CALIFORNIA
remedial progress. After well effluent hydrocarbon concentrations stabilize at low
levels, soil sampling to confirm mitigation will be recommended.
10.0 HEALTH AND SAFETY
All RESNA employees that will work at the site have received the Health and Safety training required
by OSHA for hazardous waste site operations (29 CFR 1910.120). Gasoline fuel constituents are the
identified hazardous substances at this site. The more volatile components, especially benzene, pose
the greatest health hazard. Because of the outdoor location and the intermittent nature of sampling
operations, it is not considered likely that personnel will be exposed to elevated levels of hydrocarbon
vapors for any length of time. Under these conditions personnel will work under"Class D" protection.
11.0 PROPOSED SCHEDULE
The vapor extraction wells can be installed within 2 weeks after BFD approval of this plan. It is
anticipated that the APCD Authority to Construct permitting will take approximately 3 to 6
process
months and it is estimated that successful remediation can be achieved after 6 to 9 months of operation.
12.0 LIMITATIONS
This report was prepared in accordance with generally accepted standards of environmental geological
practice in California at the time this investigation was performed. This investigation was conducted
solely for the purpose of evaluating environmental conditions of the soil and groundwater with respect
to hydrocarbons at the site. No soil engineering or geotechnical references are implied or should be
inferred. Evaluation of the geologic conditions at the site for the purpose of this investigation is made
from a limited number of observation points. Subsurface conditions may vary away from the data
points available. Additional work, including further subsurface investigation, can reduce the inherent
uncertainties associated with this type of investigation.
13.0 REFERENCES
1) California Water Resources Control Board. October 1989. Leaking Under_mound
Fuel Tank Manual: Guidelines for Site Assessment. Cl~itnllp. anal Under_mound
Storage Tank Closure.
2) Dale, R. H., J. J. French and G. V. Gordon. 1966. Ground-Water Geology and
Hydrology of the Kern River Alluvial-Fan Area. California. U.S. Geological
Survey.
3) Kern County Water Agency. February 1991. Improvement District No. 4. 1990
Report on Water Conditions.
4) U.S. Geological Survey. 1973. Oild~le. California. 7.5-Minute Topographic
Quadrangle.
I
RESNA/GROUNDWATER RESOURCES INC. FEBRUARY 24, 1992/Page 8 . !
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I
Map Source: USGS 7.50ILDALE, CALIF.
BII~,~'U,~ AUTO CLUB OF PLATE
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EnvironmentalSolutions 2301 F STREET
Through Applied Science, BAKERSFIELD, CALIFORNIA
Engineering & Construction
DATE: 01/06/91
PROJECT NUMBER: 4871-3 LOCATION MAP
I
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!
,~ 24th Street
I N driveway sidewalk
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I B'4. ~1~'lB-'
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latoml o~,nt o~ plum
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Envimn~ntalSolutions 2301 F STREET
~m~h ~plled ~n~, BAKERSFIELD, CALIFORNIA 2
Engineering & Const~ion
DA~: 01/0~91
,..~c~.u~.~.: ~-~ SITE MAP
I
ANALYSES SAMPLE
Lab Field z ~ d~
E
WELL Benzene Hnu O~' ~: uJ
.~ ----" ~ ='~ >,~ '?,~ SOIL DESCRIPTION
COMPLETION TPH P.I.D. ~O ~ ~-"' z:3 _~' d.
Ltl Z O
ppm ppm m r', - ~'c:
0
-10 m
.... 18 -- :::::::::::::::::::::::
_ 20 11 __ __ 84-15 i::i::i::i::iiiiii SW S,~D - Tram silt, fino to coamo grainod, yollow[sh
:::::::::::::::::::::::::::::::: brown, mmpa~t, damp
~ ~ ~ :::::::::::::::::::::::::::::
-20 ~
-- 140 5 ~ ~ · B4-20 SM SILTY SAND - Fine grained, gray, loose, dry
-25 ~
ND 45 64 ~ ~ · B-4-25 SW GRAVELLY SAND - Trace cobbles, pebbles and
-- 27 ~ ~~ ............... silt, very fine to coarse groined, light brown, dense,
-- 73 ,lOO ~ ~~ B-4-30 :::::::::::::::::::::: SW GRAVELLY SILTY SAND - With cobbies and
.... ~® pebbles, very fine to coarse grained, light brown,
Z ~ ~ dense, dry
-- ~-35 ~mm
410 60 ~ B-4-35 SW GRAVELLY SILTY SAND - Trace cobbles and
-- ~ ~ :~:~:~:~:~:~:~:~: pebbles, very fine to coarse groined, yellowish
::::::::::::::::::::::::
- - - ~!iiiiiiiiii;i;i brown, dense, dry
................... pebbles, very fine to coarse groined, moderate
-- _ _ ~iiiiiiiiiiiiiiii brown, dense, dry
-45--
_ 1.1 475 61 _ _ · B-4-45 SW GRAVELLY SILTY SAND- With cobbles and
-- 280 ~ ~~ pebbles, very fine to coarse grained, light brown,
_-- ~ Z dense, dry
e~ .....
LOGGED BY: MHS DIAMETER OF BORING: 8-INCH
DATE DRILLED: 02/03/92 WATER ENCOUNTERED AT: NONE
TOTAL DEPTH.' 72 FEET SAMPLING METHOD: MODIFIED SPMT-SPOON
ORILENG COMPANY: RESNA INDUSTRIES
PROJECT NAME: AUTO CLUB OF SOUTHERN
RESNA/GROUNDWATER SITE NAME: CALIFORNIA PLATE
RESOURCES, INC. 2301 F Street
(805)83,5-7700 Bakerefeld, California
environmental/geotechnical services BORING LOCATION:
PROJECT NU~ER: ~-at LOG OF BORING B-4 ~ago ~ of 2
I ANALYSES SAMPLE
: Lab Field ~ 3 ~
WELL Benzene Hnu O. < ,,, E>.,·
~ ~ > "~ ~ '? SOIL DESCRIPTION
COMPLETION TPH P.I.D.> '~' ~" ~ >' ~
i _~ m- z - ~.
ppm ppm m ~ z
_ 4~0 Z~ _-55_- I B4-§§ S~ GRAVELLY SAND - lrace oobbies, pobbies, silt
-- -- -- and clay, very fine to gravelly grained, light brown,
-- -- -- dense, damp
_ 94 400 52 _"60_- I B-4-60 SW GRAVELLY SAND - Trace cobbles, pebbles, silt
_ 14,000 _ _ and clay, very fine to gravelly grained, light brown,
-- -- -- dense, damp
_ 400 .,o0 -- -- I B4-65 ML SANDY GRAVELLY SILT- Very fine to gravelly
-- -- -- grained with cobbles, yellowish brown, hard, dry
_-- ---- Z groined with cobbles, yellowish brown, hard, dry
I -- 0.07 50 84 -- -- · B-4-72 ML SANDY GRAVELLY SILT- Very fine to gravelly
-- 24 -- ~ grained with cobbles, yellowish brown, hard, dry
-75 -
-~-
'-~0-
I Z ZZ
LOGGED BY: MHS DIAMETER OF BORING: 8-INCH
DATE DRILLED: 02/03/92 WATER ENCOUNTERED AT: NONE
TOTAL DEPTH: 72 FEET SAMPLING METHOD: MODIRED SPLIT-SPOON
I DRILLING COMPANY: RESNA INDUSTRIES
PROJECT NAME: AUTO CLUB OF SOUTHERN
RESNA/GROUNDWATER SITE NAME: CALIFORNIA PLATE
I INC. 2301 F Street
RESOURCES,
(805)835-7700 Bakerafeld, California
;nvironmental/geotechnical services BORING LOCATION: ~,1
I PROJECT NUMBER: 5251-3 LOG OF BORING B-4 ~age2of2
!
ANALYSES SAMPLE
> "" ~ '~' SOIL DESCRIPTION
COMPLETION TPH P-I.D. O, nF'' ~ :~ ~ d
= ~ z z ~
ppm
ppm
0
-10 ~
-
_ 5 13 _ _ B-5-15 SW S~D - Tm~ ~bbles, gravels and si~, ve~ fine
-- -- -- to gmvel~ grained, yellow~h brown, ~mpa~,
-- -- -- damp
-20 --
-- 0 19 -- -- ~ B-5-20 SW S~D - Tra~ ~bbles, gravels and siE, ve~ fine to
~ gravelly grain~, yellowish brown, compaq, damp
0 38 _ _ I B-5-25 SW G~VELLY SAND - Tra~ ~bbles, gravels and si~,
-- -- -- ve~ fine to gravelly grained, yellowish brown,
-- -- -- co~, damp
- .D 0 ~ -- -- B ~-5-30 ~ sw ~VELLY SlLW S*.O-T~ ~bl.~,g~wi~
-- ND -- -- and siE, ve~ fine to gravelly graln~, yellowish
~ ~ ~ brown, ~mpa~, damp
~5--
~0
L~ED BY: ~S DIAMETER OF BORING: ~INCH
DATE DRILLED: 0~4~2 WATER ENCOUNTERED AT: NONE
TOTAL DE.H: 30 FEET SAMPLING ME. OD: MODIRED SPLIT-SPOON
DRILMNG ~MPANY: RESNA INDUSTRIES
PR~ECT NAME: AUTO CLUB OF SOU~ERN
RESNNGROUNDWATER SITE NAME: CALIFORNIA PLATE
-RE~URCES, 2301 F Stm~
INC.
(~5~~ ~kers~ld, California
envimnmental/ge~echni~l sewices BORING L~A~ON:
PR~ECT NUMBER: 5~1~2 LOG OF BORING B-5 3age 1 of 1
ANALYSES SAMPLE
Lab Field ~ ~ c~
WELL o- < ,,, E>,~,
Benzene
Hnu
~o ~' > '" ~ ~, SOIL DESCRIPTION
COMPLETION TPH P.I.D. o,> ~ z~ ~z -5~ o.',~
ppm ppm m
0
Z ZZ
_
SAND - Trace siK, very fine to very coarse grained,
-- -- -- iiiiiiiiiiii yellowish bmwn, compact, damp
III
-- 0 19 -- --· B-6-20 i~i~i~i~i~i~ S~ SAND- Trace silt, very fine to very coarse grained,
- - - iiiiiiiii!i! ye,ow,sh brown, compact, damp
-25 --
0 38-- -- II B-6-25 i!i!i!iiii!i SW GRAVELLY SILTY SAND- With pebbles and
gravel,
-- -- -- i~i~i~?~i very fine to very coarse grained, yellowish brown,
-- -- -- ::i::i::i[[[i::i compact, damp
i i i
-- -- -- ??ill, ii?il very fine to very coarse grained, yellowish brown,
iiiiiiiiiiii dense, damp
_ ND 160 ,lO~ _-35 ---- I B-6-35 .:.:.:.:.:.:iiiiiiiiiii! SV~ GRAVELLY SILTY SAND- With pebbles and gravel,
360 i~::~=:~::~:=~::~ very fine to very coarse grained, yellowish brown,
Z Z Z d~nse, damp
-40--
~0
LOGGED BY: MHS DIAMEIER OF BORING: 8-INCH
DATE DRILl. ED: 0~04/~2 WATER ENCOUNTERED AT-' NONE
TOTAL DEPTH: 35 FEET SAMPLING METHOD: MODIFIED SPLIT-SPOON
DRILLING COMPANY: RESNA INDUSTRIES
PROJECT NAME: AUTO CLUB OF SOUTHERN
RESNAJGROUNDWATER SITE NAME: CALIFORNIA PLATE
RESOURCES, INC. 2301 F Street
(805)835-7700 Bakersfeld, California
environmental/geotechnical services BORING LOCATION:
PROJECT NUMBER: 5251-32 LOG OF BORING B-6 3age 1 of 1
ANALYSES SAMPLE
Lab Field ~ '~ c~
WELL Benzene Hnu ~) -_., ~ - LUO:: E>, ~'-
g m ~ ? SOIL DESCRIPTION
COMPLETION TPH ,P.I.D. ~ ~ ~ z~ _~ d.
ppm ppm m o - ~.=
0
-- 38 _ .~I ................ pebbles, very fine to coarse grained, light brown,
-- ~ -- dense,
dry
-45--
~0
LOGGED BY: MI. IS DIAMETER OF BORING: 8-INCH
DATE DRILLED: 02/04/92 WATER ENCOUNTERED AT: NONE
TOTAL DEPTH: 25 FEET SAMPLING METHOD: MODIFIED SPMT-SPOON
DRILLING COMPANY: RESNA INDUSTRIES
PROJECT NAME: AUTO CLUB OF SOUTHERN
RESNA/GROUNDWATER SITE NAME: CALIFORNIA PLATE
RESOURCES, INC. 2301 F Street
(805)835-7700 Bakersfeld, California
environmental/geotechnic~l sewices BORING LO~ATION: 6
PROJECT NUMBER: ~-a~ LOG OF BORING B-? ~ago ~ of~
ANALYSES SAMPLE
Lab Field ~ '5 ~
WELL Benzene Hnu oO ~ ~ ~ ~ ~ SOIL DESCRIPTION
COMPLETION TPH P.I.D.~ ~ ~ : ~ o
m ~ z .
~m
~m
- ~51
o ~ _ _ __~ B-.-~o~ sw ~VE~LY SANO-W,h ~o~ie~ ~d ~.~n.
ND
: ND ~ : to gravelly grain~, den~, d~
- ~51
80
LOGGED BY: ~S DIAMETER OF BORING: ~INCH
DA~ DRILLED: 0~4~2 WATER ENCOUNTERED AT: NONE
TOTAL DE.H: 30 FEET SAMPLING ME. OD: ~DI~ED SPLIT-SPOON
DRILUNG ~MPANY: RESNA INDUSTRIES
PR~ECT NAME: AUTO CLUB OF SOU~ERN
RESNNGROUNDWATER SITE NAME: CALIFORNIA P~TE
RESOURCES, INC. 2301 F ~
(~5)~~ Bakersfeld, California
envimnmental/g~hni~l sewices ~ BORING L~A~ON:
PROJECT NUMBER: 5~1-32 LOG OF BORING B-8 ~ge 1 of 1
B-6 B-4 B-1 B-8
SILTY SAND
.... (SM) ......
10 ' - '~" -" 12~ ' --
0 -. SAND¢¢20'/~1'0.
" i (sw) /" "
o!- -
.
~AVE[[~¢~¢''(2~
~ ~o -- ~so~f~{Sw) 7~-- lOO-- ~ o =~ND
LEGEND
=- 1 410-' 135.-
Hnu TPH
~ (ppmv) (ppm)
~ =- ~ . 80-- 20~= ~ '~ 50=-(24)
~- ~ 475-- .~510. -(2,1~) ~ h ' SCALE
~'' :~ ~ ~0~/.. ~ ~ ~ Hor~ontal = Ve,ical
,o -- ~ //' ~0 ,0,000~m
~ .,~ ~0--(14,~)
SAN ~ VE L[~.~...~
, ~--(24)
PLATE
. ~~__~~~~1~_ AUTO CLUB OF SOUTHERN
~l~~~~ CALIFORNIA
Environmental Solutions 2301 F STREET ~
Through Applied Science,
Engineering & Construction BAKERSFIELD, CALIFORNIA
DATE: 01/06/92
PROJECT NUMBER: 4871<3 CROSS SECTION
!
I
SITE ASSESSMENT REPORT AUTO CLUB OF
I & REMEDIAL ACTION PLAN SOUTHERN CALIFORNIA
I
I
I APPENDIX A
i Chain of Custody and Laboratory Results
I
I
I
I
1
I
1
I
I
1
i RESNA/GROUNDWATER RESOURCES INC.
Environmental Laboratories-
Working To Restore Nature
17062 Murphy Avenue
Irvine, CA 92714-5914
Phone: (714) 851-1544
Fax: (714) 851-2217 ~¥8T8
Attention: Marc Selover Date Sampled: 02-03-92
RESNA Industries Date Received:02-06-92
1500 S. Union Ave. Date Analyzed:02-06-92
Bakersfield, CA 93307 Date Reported:02-07-92
Project: 5251-32 Matrix: Soil
Ethyl o Total
Benzene ToLuene benzene Xytertes TP._~H
Detection Limit (mg/kg) 0.05 0.05 0.05 0.07 5.0
Sample description
B4-25 ND ND ND ND 27
S2-202-016.
B4-45 1.1 0.3 6.0 43 280
S2-202-017.
B4-60 94 430 ~900 23 14,000
S2-202-018.
B4-72 0.07 ND 0.07 0.. 50 24
S2-202-019.
B5-30 ND ND ND ND ND
S2-202-020.
B6-35 ND ND ND 4.2 360
S2-202-021-
B7-30 ND ND ND 0.13 38
S2-202-022.
B8- 30 ND ND ND ND ND
S2-202-023.
TPH = total petroleum hydrocarbons as gasoline.
mg/kg = MiLLigrams per kilogram = ppm = parts per mittion.
* = Laboratory identification number.
NE = AnaLysis not requested.
ND= Anatytes not detected at or above the stated detection Limit.
ANALYT ! CAL PROCEDURES
BTEX-- Benzene, toluene, ethytbenzene and total xytene isomers are analyzed in accordance with EPA Method 5030
(tow [eve[ ), foLLowed by analysis using EPA Method 8020.
TPli-- Total petroleum hydrocarbons as gasoline are analyzed in accordance with EPA Method 5030 (tow LeveL),
foLLowed by modified EPA Method 8015.
· Environmental Laboratories
I Working To Restore Nature
170fi2Murphy Avenue
i ~ine, CA 92714-5914
Phone: (714) 851-1544 Project Name: N/A
Fax: (714) 851-2217 Project No. : 5251-32
~ebruary 7, 1992
~arc Selover
I RESNA Industries
1500 S. Union Ave.
Bakersfield, CA 93307
I Dear Mr. Selover:
I Enclosed please find the analytical results for the soil samples
received by RESNA Environmental Laboratories on 02-06-92.
IRESNA Environmental Laboratories maintains a strict Quality
Assurance/Quality Control (QA/QC) program designed to meet or
exceed EPA requirements. Analytical data presented in this
report met QA/QC criteria.
I The specific analytical methods used and cited in this report are
approved by the State of California's Department of Health
I Services (DOHS) under certificate number E678.
If you have any questions regarding these analyses, or if we can
be of further assistance, please give us a call.
ISincerely,
RESNA Environmental Laboratories
IF.A. Jaime
Laboratory Manager
I
CHAIN OF CUSTODY RECORD AND ANALYSIS REQUEST
' "'' ~ ~ i
SAMPLE IDENTiFiCATiON DATE T~ME ~ ~ PRES. o o ~
RELIN~UISHED~ DAlE TIME RECEIVED BY: CBORATORY: PLEASE SEND RESULTS TO:
RELINQUISM6D BY: ~ATE TIME RECEIVED BY:' REQUESTED TURNAROUND TIME: