HomeMy WebLinkAboutMITIGATION
September 22, 2003
Mr. Frank Hobin
8908 Versailles Dr.
Bakersfield, CA 93311
SUBJECT: Workplan to Perform Additional Groundwater Characterization
Former Niagara Car Wash
1700 Stine Road
Bakersfield, California
Dear Mr. Hobin:
This report presents the Amendment to IRAP, Workplan to Perform Additional Groundwater
Characterization at the Former Niagara Car Wash located at 1700 Stine Road (Site) in
Bakersfield, California. , This Workplan is submitted in response to a request from the State of
California Regional Water Quality Control Board - Central Valley Region (RRWQCB) in their
letter dated August 26, 2003.
It is a pleasure to be of service, should you have any questions regarding this submittal, do not
hesitate to call either of the undersigned at 661-831-6906.
Respectfully Submitted,
E2C Remediation
,.·~;0~~~:..~,~: \ /\~;~~~~~~~ft'~~~;~ \, )L.
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William A. Lawson, R.
Senior Geologist
cc: Mr. John Whiting, R.G.
Regional Water Quality Control Board - Central Valley Region
1685 E Street
Fresno, CA 93706·2020
Mr. Howard H. Wines III, R.G.
Hazardous Materials Specialist
City of Bakersfield Fire Department, Office of Environmental Services
1715 Chester Avenue
Bakersfield, CA 93301
Environmental Engineering Consulting & Remediation, Inc. dba E2C Remediation
5300 Woodmere Drive. Suite 105, Bakersfield, CA 93313 p: 661.831.6906 f: 661 .831 .6234
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AMENDMENT TO IRAP
WORKPLAN TO PERFORM ADDITIONAL
GROUNDWATER CHARACTERIZATION
FORMER NIAGARA CAR WASH
1701 STEIN ROAD .
BAKERSFIELD, CALIFORNIA
September 22, 2003
Project Number 1812BK04
Prepared For:
Mr. Frank Hobin
8908 Versailles Dr.
Bakersfield, CA 93311
Prepared By:
E2C Remediation
Environmental/Engineering Consultants
5300 Wood mere Drive, Suite 105
Bakersfield, CA 93313
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Project Number 1812BK04
Seotember 22. 2003
TABLE OF CONTENTS
TABLE OF CONTENTS........................................ .......................................................................... i
LI ST OF ATTACH M ENTS ............................................................................................................... i
1.0 INTRODUCTION ................................. ........................................... .......... .............. ......... ....1
1.1 Site Description............................................................................... ...................................1
1.2 Site Hydrogeology.... ........... .............................................. ... ..... ............ ........ ...... ..............1
1.3 Site History........................................................................................................................1
2.0 WORKPLAN TO PERFORM ADDITIONAL GW CHARACTERIZATION.........................2
2.1 Well Installation Methods and Procedures.........................................................................2
2.1.1 Soil Boring Methods and Procedures .........................................................................2
2.1.2 Soil Analytical.............................................................................................................3
2.1.3 Well Installation Methods and Procedures..................................................................3
2.1.4 Groundwater Monitoring Well Developing Methods and Procedures.........................3
2.1.5 Compliance with AB 2886............................................................................. ......... ....3
2.1.6 Disposal of Soil Cuttings............................................................................................3
2.1.7 Disposal of Monitoring Well Development Purge Water ............................................3
2.2 Groundwater Monitoring.....................................................................................................3
2.2.1 Groundwater Elevations.............................................................................................4
2.2.2 Groundwater Sampling..................................................................... ..........................4
2.2.3 Groundwater Analyses..............................................................................................4
2.3 Report of Findings..............................................................................................................4
2.4 Status Reporting................................................................................................................4
3.0 QUALITY ASSU RANCE PLAN............................................................................................5
3.1 Sample Collection and Handling Protocol..........................................................................5
3.2 Protocol for Sample Identification and Chain-of-Custody Documentation .........................5
3.3 Analytical Quality Assurance.............................................................................................5
3.4 Site Safety Plan.................................................................................................................5
4.0 LlM ITA TIONS AND REPORT CERTIFICA TION.................................................... ............6
LIST OF ATTACHMENTS
Figure 1 - Site Plan
Cross-Section C-C' (Figure 5A from IRAP)
E2C Remediation
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Proiect Number 1812BK04
SeDtember 22. 2003
1.0 INTRODUCTION
This report presents the Amendment to IRAP, Workplan to Perform Additional Groundwater
Characterization at the Former Niagara Car Wash located at 1700 Stine Road (Site) in
Bakersfield, California. This Workplan is submitted in response to a request from the State of
California Regional Water Quality Control Board - Central Valley Region (RWQCB) in their letter
dated August 26, 2003.
1.1 Site Description
The Site is a currently operating car wash (Whitewater Car Wash) located in Bakersfield,
California, at 1700 Stine Road between Stine Road and Hasti Acres Drive (see Figure 1 for Site
Location Map). The Site encompasses approximately 1.7 acres and is located approximately
200 feet south of Ming Avenue. The Site is located in Section 11, Township 30 South, Range 27
East MDBM.
Three (3) 12,OOO-gallon gasoline underground storage tanks (USTs) were located as shown on
Figure 2 (Site Plan). The USTs were removed in April 2003. The fuel dispensers under the
canopy area have also been removed along with the associated piping. One (1) 2,OOO-gallon
waste oil UST is still located at the Site as shown on Figure 2.
The surrounding area is a mixed commercial and residential area along Stine Road and Hasti Acres
Drive. The Stine Canal (irrigation and runoff) traverses the Site from northeast to southwest
between the carwash building and Stine Road. The canal continues beneath the Site as a
concrete pipe culvert which extends from north of Ming Avenue to the southern boundary of the
Site. The canal is an unlined channel to the south of the Site.
1.2 Site Hydrogeology
Regionally, the depth to groundwater had been estimated at approximately 190 feet bgs
according to the 1996 Water Supply Report published by the Kern County Water Agency.
During March 2003 drilling activities, first encountered groundwater was found at a depth of
approximately 163 feet bgs.
1.3 Site History
A detailed Site History was discussed in the June 17,2003 report, 'Site Characterization Report
of Findings, Report of Surrounding Area Well Survey, SVE System Installation and Pilot Test
Report of Findings & Workplan to Implement Remedial Action, Former Niagara Car Wash, 1701
Stein Road, Bakersfield, California' (IRAP).
In March 2003, E2C installed one (1) groundwater monitoring well to assess groundwater
conditions at the Site. In addition two (2) dual completion VE wells and one (1) single completion
VE well were installed. Finally, two (2) 40-foot soil borings were advanced on either side of the
dispenser islands. Upon completion of the well installations, trenches were excavated and the
wells were plumbed to a manifold by the equipment area. Upon completion of plumbing, the
trenches were backfilled and completed with concrete caps. Based on the results of this work,
the RWQCB has requested additional groundwater characterization.
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Proiect Number 1812BK04
SeDtember 22. 2003
2.0 WORKPLAN TO PERFORM ADDITIONAL GW CHARACTERIZA TlON
In accordance with the RWaCB letter dated August 26, 2003, E2C proposes the following Scope
of Services:
· Install two (2) groundwater monitoring wells with collection of soil and groundwater
samples;
· Analyze soil and groundwater samples at a State of California DHS-Certified analytical
laboratory;
· Report the findings in a Technical Report; and
· Submit a Workplan to perform additional groundwater characterization, if warranted.
Please Note: The reference to performing groundwater air sparging at the Site was in error. At this
time, E2C does not recommend air sparging. Please disregard any reference to groundwater air
sparging in the IRAP.
Schedule
E2C anticipates beginning work the week of October 5, 2003. It will take approximately three (3)
days to install the two (2) proposed monitoring wells. After installation, the wells will be
developed and groundwater samples will be collected. Upon receipt of the analytical data a
Report of Findings will be issued. If warranted, a Workplan to Perform Additional Groundwater
Characterization will be submitted as part of the Report of Findings.
2.1 Well Installation Methods and Procedures
Well locations (MW-2 and MW-3) are depicted on Figure 2'.
2.1.1 Soil Boring Methods and Procedures
A soil boring will be advanced to the desired depth at each well location. Each soil boring will be
advanced using an air rotary drill rig with casing advance. Soil samples will be collected as
follows:
MW-2
MW-2 will be located between VES-B and B-8 an area previously defined (see Attachment A,
Cross-Section A-A'). As such, soil samples in MW-2 will be collected at 20-foot intervals to 120
feet below ground surface (bgs). From 120 feet bgs to total depth, approximately 180 feet bgs),
soil samples will be collected at 5-foot intervals.
MW-3
MW-3 will be located between B-3 and B-6. Soil samples will be collected at 10-foot intervals to
depth, approximately 180 feet bgs.
Soil Sampling Methods and Procedures
Samples will be collected using a split-spoon sampler (California Sampler) containing three brass
or stainless steel sleeves. Drilling operations, soil sampling and field monitoring for the presence
of hydrocarbons will be performed under the supervision of a California Registered Geologist. A
hydrogen flame ionization detector (FID) will be used during the drilling process to detect the
presence of hydrocarbons (note: these are only qualitative tests not to be construed to represent
a certified laboratory analysis).
All soil samples will be labeled, capped and placed in a cooler with ice at a temperature of 4° C for
possible analysis. A maximum of ten (10) soil samples from MW-2 and five (5) soil samples from
MW-3 (total of 15) will be submitted for chemical analyses based on the field screening
measurements. Samples will be transferred to a California State-certified laboratory under chain
of custody control procedures.
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Project Number 1812BK04
SeDtember 22 2003
2.1.2 Soil Analytical
Soil samples will be chemically analyzed at Halcyon Analytical Laboratories of Bakersfield,
California (State Certification #1920) for the following fuel hydrocarbon compounds:
· TPHg using EPA Method 5035/8015M;
· BTEX and five (5) fuel oxygenates of MtBE, ethyl tertiary-butyl ether (ETBE), tertiary-
amyl methyl ether (TAME), di-isopropyl ether (DIPE), and tertiary-butyl alcohol (a.k.a.
tert-butanol) (TBA) using EPA Method 5035/8260b; and
· The minimum detection limits will be BTEX - 0.1 mg/Kg, MtBE, ETBE, DIPE, and TAME -
0.1 mg/Kg, TBA - 0.5 mg/Kg, and TP/;-Ig - 0.1 mg/Kg.
2.1.3 Well Installation Methods and Procedures
The two (2) groundwater monitoring wells will be constructed using 4-inch-diameter flush threaded
Schedule 40 PVC casing with 20 feet of screen (0.020-inch slots) from a total depth of 180 feet
bgs to 160 feet bgs. The water table was previously encountered at a depth of approximately
163 feet bgs. Filter pack sand (#3 size) will be emplaced from total depth to 158 feet bgs
followed by hydrated bentonite chips placed by gravity feed from the top of the filter pack sand
interval to approximately 155 feet bgs, approximately three (3) feet above the sand filter pack,
creating a tight seal. Subsequently, the wells will be completed with a neat cement grout to the
surface. Each wellhead will be set inside a steel traffic-rated box set in concrete to protect the
wellheads from moving vehicles. Note: Wells will be constructed similarly to MW-1. Figure 6 of
the IRAP depicts the As-Built diagram for MW-1.
2.1.4 Groundwater Monitoring Well Developing Methods and Procedures
The groundwater monitoring wells will be developed using the 'surge block' and bailing method
until purged water appears clear of suspended solids.
2.1.5 Compliance with AS 2886
After installation of the new monitoring wells, the elevations of all three (3) monitoring wells will be
temporarily surveyed for wellhead elevation for the purpose of calculating a groundwater gradient
and flow direction. If the installation of the two (2) new monitoring wells delineates the
groundwater plume, all monitoring wells will be surveyed by a State of California-licensed
Surveyor to comply with AB 2886. The surveyor will tie in wellheads using a local benchmark
and the State plane coordinate system as well as latitude and longitude readings to sub-meter
accuracy to comply with California Assembly Bill 2886 (AB 2886). Note: If further groundwater
monitoring wells are warranted, the AB 2886 surveying will be held in abeyance pending
completion of that investigative work.
2.1.6 Disposal of Soil Cuttings
During drilling operations soil cuttings will be placed in lined transport bins. A composite sample
of the soils will be collected and chemically analyzed for TPHg, BTEX, and MtBE. The soils then
will be profiled for thermal treatment at TPS Adelanto, a State Certified disposal facility under the
appropriate manifesting.
2.1.7 Disposal of Monitoring Well Development Purge Water
Development purge water will be placed in drums for temporary storage on site. Upon
completion and development of the of the new monitoring wells, the development water will be
combined will well sampling purge water and will be transported by a properly permitted and
licensed transporter to a properly permitted and licensed disposal facility.
2.2 Groundwater Monitoring
After completion of well development activities, groundwater samples will be collected from all
three (3) wells. Subsequent to the initial monitoring and sampling of the new wells, groundwater
monitoring and sampling will be conducted on a quarterly basis.
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Proiect Number 1812BK04
SeDtember 22. 2003
2.2.1 Groundwater Elevations
The depth of freestanding groundwater will be measured to the nearest one-hundredth (0.01) of a
foot using a Solinst water level indicator at the north side of the top of casing of each well. The
Solinst water level indicator and attached measuring tape will be washed in Alconox and double
rinsed prior to and after use.
Groundwater level measurements will be used to calculate a groundwater gradient and flow
direction for the Site.
2.2.2 Groundwater Sampling
Prior to sampling groundwater, groundwater' will be purged from each well using a pneumatically
operated pump until a minimum of three (3) casing volumes are removed from the well. A casing
volume is calculated by multiplying the height of the freestanding water column in the well by the
cross sectional area of the well casing. Groundwater parameters (temperature, pH, and
conductivity) were measured as water was pumped to verify sufficient purging and stable
measurements on field instruments. Purge data sheets are included as Appendix A. The pump
and lines were washed in an Alconox solution and double rinsed in potable water prior to each
use.
Each groundwater sample will be decanted into two (2) 40-milliliter VOA vials. Care will be taken
such that no headspace or bubbles exist and the vials will be sealed with Teflon-lined lids. The
samples will be immediately labeled and placed in an iced cooler maintained at 4° Centigrade,
accompanied by a chain of custody document for transport to the analytical laboratory.
2.2.3 Groundwater Analyses
The groundwater samples will be analyzed at Halcyon Laboratories of Bakersfield, a State of
California certified laboratory (#1920). Laboratory analyses will include BTEX, five fuel
oxygenates (includes MtBE), 1,2-Dichloroethane (1,2-DCA), Ethylene Dibromide (EDB) (a.k.a.
dibromomethane) using EPA Method 8260b, and TPHg using EPA Method 8015M. The Method
Detection Limits reported by the laboratory will be 0.5 µg/L for BTEX, MtBE, DIPE, ETBE, and
TAME, 2.5 µg/L for TBA, and 50 µg/L for TPHg.
2.3 Report of Findings
After receipt of the analytical data, a Report of Findings (ROF) will be issued. The ROF will detail
the methods and procedures used in installing the well, developing the wells, and sampling the
wells. The ROF will also document disposal of soil cuttings and purge/development water.
Groundwater flow and gradient information will be presented. If additional monitoring wells are
warranted, a Workplan for additional groundwater characterization will also be presented.
2.4 Status Reporting
On a quarterly basis, a report will be prepared by the last day of the next month following each
quarter and will contain, at a minimum, the following:
· Tabulated results of all previous and to date investigations;
· Groundwater elevation and contamination contour maps;
· Site map clearly indicating the areal extent of contamination plumes;
· A summary of analytical data to date, equipment records, daily/weekly inspection records,
and a discussion of remedial progress; and
· In addition, the report will contain a conclusions and recommendations section clearly
indicating what further actions, if any, are required. The report will be prepared under the
supervision of, be reviewed by, and be certified by a State of California Registered
Geologist.
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Proiect Number 1812BK04
SeDtember 22. 2003
3.0
QUALITY ASSURANCE PLAN
This section describes field and analytical quality-assurance procedures to be followed during the
investigation and remediation
3.1 Sample Collection and Handling Protocol
Proper sample collection and handling are essential to assure quality of data obtained from a
sample. Each sample, therefore, will be collected in a plastic tube, preserved correctly for the
intended analysis and stored for no longer than permissible holding time prior to analysis.
Protocol to be applied in this project was described earlier.
3.2 Protocol for Sample Identification and Chain-of-Custody Documentation
Sample identification and Chain-of-Custody procedures are designed to assure sample quality
and to document sample possession from collection time to the time of ultimate disposal.
The container for each sample submitted for analysis will have a label affixed with the identifying
number or the number will be inscribed directly on the container. The analytical laboratory will
assign a separate sample number unique to that sample for internal sample coordination and
identification. A description of the sample including the sample number and other pertinent
information regarding its collection and/or geologic significance will be written in field notes and/or a
geologic boring log being prepared by the site geologist. These field documents will be kept in a
permanent project file. All samples will be analyzed by a state certified laboratory for the
analyses requested.
A properly completed Chain-of-Custody Form will be submitted to the analytical laboratory along
with sample. The laboratory's assigned number will be properly entered on the form. A quality
control officer at the lab will verify integrity of sample submitted, proper sample volume,
correctness of containers used, and properly executed Chain-of-Custody Form. Pertinent
information will be entered into a logbook kept by the laboratory.
3.3 Analytical Quality Assurance
In addition to routine calibration of analytical instruments with standards and blanks, the analyst is
required to run duplicates and spikes on 10 percent of analyses to assure an added measure of
reliability and precision. Accuracy is verified through the following:
1. U.S. EPA and State certification of results;
2. Participation in inter-laboratory round robin program;
3. The quality control officer on a weekly basis submits "Blind" samples for analysis.
These are prepared from National Bureau of Standards specifications of EPA
reference standards; and
4. Verification of results with an alternative method.
3.4 Site Safety Plan
The Site Safety Plan prepared for the initial hydrogeologic assessment work is still in force and
will be adhered to during the work under this Workplan.
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Project Number 1812BK04
Seotember 22 2003
4.0 LIMITA TIONS AND REPORT CERTlFICA TlON
This report has been prepared by E2C under the professional supervision of the registered
professional whose seal and signature appear herein. The conclusions of this report are based
solely on the Scope of Services outlined and the sources of information referenced in this report.
Any additional information that becomes available concerning the Site should be submitted to E2C
so that our conclusions may be reviewed and modified, if necessary. This report was prepared
for the sole use of Mr. Frank Hobin and/or agent(s) and the RWQCS.
E2C performed this investigation in accordance with the generally accepted standards of care
existing in California at this time. It should be recognized that definition and evaluation of geologic
conditions is a difficult and inexact science. Judgments leading to conclusions and
recommendations are generally made with limited knowledge of subsurface conditions present.
No warranty, expressed or implied, is made.
William A. Lawson, R.G.
Senior Geologist
. ~eIi wed Q
)/f il.l . ~--'
lip GO~I~in, R.G. #4779
Principal Hydrogeologist
Reg. Exp 11/30/04
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Project Number 1812BK04
September 22. 2003
ATTACHMENTS
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Attachments
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20 feet
SP SP
40 feet ?-
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60 feet
80 feel
100 feel
120 feet
140 feet
160 feet
180 feet
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SP 20 feel
P
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SP with gravel
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SP/SM SP/SM
60 feet
SP/GP SP/GP -?
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former UST
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SP/SM
EXPLANATION
SP/SM
B-8 - Soil Boring Location
MW-1 - Monitoring Well Location
VES-A/B - VE Well Boring Location
MUCL - Clayey Silt
SM - Silty Sand
SP/SM - Sand, Silty Sand
SP - Sand
SP/GP - Sand, Gravelly Sand,
Sandy Gravel
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. SP/GP
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SP
SCALE 1" = 30 feet
E2C Remediation, LLC
5300 Woodmere Dr., Suite 105
Bakersfield, California 93313
Telephone: (661) 831-6906
Facsimile: (661) 831-6234
FORMER NIAGARA CAR WASH
1701 STINE ROAD
BAKERSFIELD, CA
CROSS-SECTION C-C'
100 feet
120 feet
140 feet
160 feet
180 feet
FIGURE
5A
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E2C Remediation
5300 Woodmere Dr., Suite 105
Bakersfield, California 93313
Telephone: (661) 831-6906
Facsimile: (661) 831-6234
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FORMER NIAGARA CAR WASH
1701 Stine Road
Bakersfield, California
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LEGEND
A Groundwater
't' Monitoring Well
)0( Soil Vapor
)OJ.. Extraction Well
.
1997 Soil Boring
,'jC\/JS-1í.s
~ 1997 Hand Auger
B-6 Boring
e:> 1999 Soil Boring
. 2003 Soil Boring
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SCALE: 1 II = 40 feet
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FIGURE
SITE PLAN WITH PROPOSED MONITORING WELLS
1