HomeMy WebLinkAboutCT 00-13; TABATA PROPERTY; SOIL AND AGRICULTURAL CHEMICAL EVALUATION; 2000-11-10I I I I I I I I I I I I I I I I I I f I I I I
LIMITED SOIL SAMPLING AND
AGRICULTURAL CHEMICAL
EVALUATION
GEOCON
iCHNKtAl
IRCpNMBNIIAU
TB
5-ACRE FORMER TABATA
PROPERTY
CARLSBAD, CALIFORNIA
PREPARED FOR
THE BREHM COMPANIES
SAN DIEGO, CALIFORNIA
NOVEMBER 10, 2000
GEOCON
CONSULTANTS, INC.
ENVIRONMENTAL
Project No. 09017-06-01
November 10, 2000
GEOTECHNICAL MATERIALS
HA^^r)-nFT ryfRFP
The Brehm Companies
5770 Oberiin Drive
San Diego, Califomia 92121-1723
Attention: Mr. Bill Kennedy
Subject: 5-ACRE FORMER TABATA PROPERTY
CARLSBAD, CALIFORNIA
LIMITED SOIL SAMPLING AND AGRICULTURAL CHEMICAL EVALUATION
Dear Mr. Kennedy:
At your request, Geocon Consultants, Inc. (Geocon) has conducted activities at the site. The
approximately 5-acre property is located adjacent to the east of Black Rail Road in Carlsbad,
Califomia. The scope of services for the assessment included limited soil sampling and analyses to
evaluate the potential presence of organochlorine pesticides, organophosphate pesticides, and
organochlorine herbicides in near-surface soil on-site. Geocon also performed a preliminary health risk
screening evaluation to evaluate the potential risk to human health posed by the presence of
organochlorine pesticide residues detected in soil samples collected from the site.
This report presents the details of the assessment and our conclusions and recommendations with
respect to the presence of detectable pesticide residues on the site. Please call us if you have any
questions.
Sincerely,
GEOCON CONSULTANTS, INC.
Christopher S. King
Senior Staff Engineer
CSK:RJK:lek
(3) Addressee
6970 Flanders Drive • San Diego, California 92121-2974 • Telephone (858) 558-6100 • Fax (858) 558-8437
TABLE OF CONTENTS
LIMITED SOIL SAMPLING AND AGRICULTURAL CHEMICAL EVALUATION Page
1. INTRODUCTION
1.1 Site Description
1.2 Existing Conditions and Improvements
1.3 Background
1.4 Purpose and Scope of Services
2. DESCRIPTION OF THE FIELD ACTIVITIES 2
2.1 Agricultural Chemical Evaluation 2
2.1.1 Purpose 2
2.1.2 Soil Sampling Activities 2
2.1.3 Laboratory Testing 3
2.1.4 Results of Laboratory Analyses 3
3. PRELIMINARY HEALTH RISK EVALUATION 4
3.1 Introduction 4
3.2 Site-Specific Exposure Point Concentration for DDT, DDE, DDD, and Dieldrin 4
3.3. Environmental Fate of Organochlorine Pesticides 4
3.4 Routes of Exposure 5
3.5 Potential Human Receptors 5
3.5.1 Residential Land Use 5
3.6 Risk Characterization 5
3.6.1 Soil Pathway 6
3.6.2 Air Pathway 6
4. CONCLUSIONS AND RECOMMENDATIONS 8
4.1 Agricultural Chemical Assessment 8
4.2 Human Health Risk Screening Assessment 8
5. LIMITATIONS 10
Figiire.s:
1. Vicinity Map
2. Site Plan
Tables:
I. Analytical Data Summary - Organochlorine Pesticides
n. Analytical Data Summary - Organochlorine Herbicides
in. Analytical Data Summary - Organophosphate Pesticides
Appendices:
A. Proposal dated September 8, 2000 (revised October 6, 2000)
B. Laboratory Report and Chain-of-Custody Documentation
LIMITED SOIL SAMPLING AND AGRICULTURAL CHEMICAL EVALUATION
1. INTRODUCTION
Geocon Consultants, Inc. (Geocon) has prepared this report at the request of Mr. Bill Kennedy of the
Brehm Companies (Client). The report presents the results of soil sampling activities conducted for
the 5-acre portion of the Tabata property, located adjacent to the east of Black Rail Road in Carlsbad,
Califomia. The report also presents the findings of a preliminary health risk screening evaluation
based on the presence of organochlorine pesticides concentrations detected in surficial soil on-site.
1.1 Site Description
The site consists of approximately 5 acres of former commercial agricultural property. The site is
bounded by former agricultural property to the north and south, a graded property to the east and by
Black Rail Road to the west. The approximate location of the site is depicted on the Vicinity Map
(Figure 1). The approximate limits of the site are shown on the Site Plan (Figure 2).
1.2 Existing Conditions and Improvements
The site consisted of a plowed fallow farm field at the time of the site assessment. A contractor was
watering the on-site soil during the soil sampling activities. Earthwork equipment was observed on the
property to the north of the site.
1.3 Background
Geocon reviewed portions of the following documents, relevant to adjacent property previously
farmed by the Tabata brothers, provided to us by the client:
• Phase I Environmental Site Assessment, GeoSoils Inc., October 6, 1998;
• Agricultural Chemical Residue Survey, Hadley Property, APN 215-080-04, GeoSoils Inc.,
October 8, 1999;
• Carlsbad Zone 20 Specific Plan, Pages III-97 to III-102.
1.4 Purpose and Scope of Services
The purpose of these activities was to assess the potential presence of pesticide residues in soil at the
site and to evaluate possible mitigation action pursuant to current regulatory guidelines. The
guidelines used for the definition of hazardous materials/hazardous wastes are referenced in the
Project No. 09017-06-01 - 1 - November 10, 2000
LIMITED SOIL SAMPLING AND AGRICULTURAL CHEMICAL EVALUATION
1. INTRODUCTION
Geocon Consultants, Inc. (Geocon) has prepared this report at the request of Mr. Bill Kennedy of the
Brehm Companies (Client). The report presents the results of soil sampling activities conducted for the
5-acre portion of the Tabata property, located adjacent to the east of Black Rail Road in Carlsbad,
Califomia. The report also presents the findings of a preliminary health risk screening evaluation
based on the presence of organochlorine pesticides concentrations detected in surficial soil on-site.
1.1 Site Description
The site consists of approximately 5 acres of former commercial agricultural property. The site is
bounded by former agricultural property to the north and south, a graded property to the east and by
Black Rail Road to the west. The approximate location of the site is depicted on the Vicinity Map
(Figure 1). The approximate limits of the site are shown on the Site Plan (Figure 2).
1.2 Existing Conditions and Improvements
The site consisted of a plowed fallow farm field at the time of the site assessment. A confractor was
watering the on-site soil during the soil sampling activities. Earthwork equipment was observed on the
property to the north of the site.
1.3 Background
Geocon reviewed portions of the following documents, relevant to adjacent property previously
farmed by the Tabata brothers, provided to us by the client:
• Phase I Environmental Site Assessment, GeoSoils Inc., October 6, 1998;
• Agricultural Chemical Residue Survey, Hadley Property, APN 215-080-04, GeoSoils Inc^,
October 8, 1999;
• Carlsbad Zone 20 Specific Plan, Pages m-97 to m-102.
1.4 Purpose and Scope of Services
The purpose of these activities was to assess the potential presence of pesticide residues in soil at the
site and to evaluate warrant mitigation action pursuant to current regulatory guidelines. The guidelines
used for the definition of hazardous materials/hazardous wastes are referenced in the California Code
Project No. 09017-06-01 - 1 - November 10, 2000
of Regulations (CCR), Title 22, Division 4.5 and the Zone 20 Specific Plan for Carlsbad. Geocon
performed a scope of services as described in the Geocon proposal dated September 8, 2000 (revised
October 6, 2000), which is included as Appendix A.
2. DESCRIPTION OF THE FIELD ACTIVITIES
The field activities were performed on October 13, 2000, and consisted of collecting soil samples from
five random locations.
2.1 Agricultural Chemical Evaluation
2.1.1 Purpose
The site and surrounding properties have been historically used for agricultural purposes. Previous
studies conducted by others have detected the presence of pesticide residues in soil on neighboring
properties. Based on this experience, the City of Carlsbad Zone 20 Specific Plan requires evaluation
and mitigation for former agricultural sites within their jurisdiction.
According to the County of San Diego Department of Environmental Health (DEH), soil containing
residues resulting from the legal application of pesticides/herbicides is not considered a hazardous
waste, assuming that the soil will not be fransported off-site, will not be freated on-site, and will not
pose a threat to public health of the environment. However, substances including pesticides,
determined by the State of Califomia to be known or suspected carcinogens or to cause reproductive
toxicity, are regulated in accordance with the Safe Drinking Water and Toxic Enforcement Act of
1986, also known as Proposition 65. Since the Client has knowledge that pesticides were applied to the
neighboring properties and probably to the site (albeit through their legal, registered application)
according to Proposition 65, the Client is required to evaluate the extent of potential human exposure
to these pesticides.
2.1.2 Soil Sampling Activities
The sampling activities were performed by Geocon on October 13, 2000. Five exploratory borings
(B1-B5) were drilled using a stainless steel hand auger at random locations in formerly cultivated
areas (Figure 2). Three soil samples were collected from each boring at depths of approximately 0 to 6
inches, 1 to 1 Vi feet, and 2 to lYi feet below the ground surface. The soil samples were placed in 4-
ounce glass jars and labeled with an identification number.
Project No. 09017-06-01 - 2 - November 10, 2000
2.1.3 Laboratory Testing
The five soil samples collected from borings B1 through B5 from approximately 0 to 6 inches below
the ground were analyzed by a state-certified analytical laboratory for the presence of organochlorine
and organophosphate pesticides following EPA Test Methods 8081 and 8141 and for organochlorine
herbicides following EPA Test Method 8151. Based on the laboratory results from the first sampling
depth and on the apparent depth of mixing of the soil, samples collected from the 2 to 2 'A foot depth
interval from borings Bl through B5 were also analyzed for the same compounds. Samples collected
from the 1 to 1 I/2 foot depth interval were not analyzed.
The laboratory report and chain-of-custody documentation are included as Appendix B. A summary of
the analytical laboratory test results for the detected compounds is presented in Tables I, n, and HI.
2.1.4 Results of Laboratory Analyses
2.1.4.1 Organochlorine Pesticides
The pesticides dieldrin and 4,4'-DDT and its natiu-al degradafion products 4,4'-DDD and 4,4'-DDE
were detected in each of the soil samples collected from borings Bl through B5.
As indicated in Table I, detectable concenfrations of 4,4'-DDT in the samples analyzed ranged from
12.3 micrograms per kilogram (|j,g/kg) to 318.0 |ig/kg. Detectable concenfrations of 4,4'-DDD in the
samples analyzed ranged from 3.4 \ig/kg to 94 jig/kg. Detectable concenfrations of 4,4'-DDE in the
samples analyzed ranged from 12.8 (a,g/kg to 429 [igfkg. Detectable concenfrations of dieldrin ranged
from 1.92 (ig/kg to 37 )j.g/kg.
2.1.4.2 Organochlorine Herbicides
Organochlorine herbicides were not detected in the samples analyzed at concentrations greater than the
respective method detection limits.
2.1.4.3 Organophosphate Pesticides
Organophosphate pesticides were not detected in the samples analyzed at concenfrations greater than
the respective method detection limits.
Project No. 09017-06-01 -3 - November 10, 2000
3. PRELIMINARY HEALTH RISK EVALUATION
3.1 Introduction
A preliminary health risk evaluation was performed in order to evaluate the potential carcinogenic risk
to future residents, assuming exposure to the maximum concenfrations detected. The risk assessment
was performed to satisfy the requirements of the Safe Drinking Water and Toxic Enforcement Act of
1986 (Proposition 65), promulgated m Califomia Code of Regulations (CCR) Title 22, Section 12000.
Screening-level equations from the Califomia Department of Toxic Substances Confrol Preliminary
Endangerment Assessment Guidance Manual, 1994, were used for the preliminary health risk evaluation.
Proposition 65 prohibits a person in the course of doing business from knowingly and intentionally
exposing an individual to a chemical, known to the State of Califomia to cause cancer or reproductive
toxicity, at a concenfration of toxicological significance, without first giving that individual clear and
reasonable waming. An estimated potential individual intake of DDT, DDE, DDD, and dieldrin at a
level less than that calculated to result in greater than one excess cancer risk in an exposed population
of 100,000, assuming lifetime exposure at the level in question, would waive disclosure requirements,
according to Proposition 65.
3.2 Site-Specific Exposure Point Concentration for DDT, DDE, DDD, and Dieldrin
The exposure point concenfrations used in the health risk screening are based on the maximum
concenfration detected in any one ofthe five samples collected. Use of the maximum value rather than an
average value will result in a conservative overestimate ofthe calculated risk.
3.3. Environmental Fate of Organochlorine Pesticides
Organochlorine pesticides, including DDD, DDE, DDT, and dieldrin possess a low water solubility
and a relatively high organic carbon partition coefficient (EPPD, 1994). Consequentiy, these
compounds do not readily dissolve in water and adsorb to soil. The adsorption is sfronger in humic soil
containing high organic carbon content, which is frequently encountered in agricultural land such as
the site. In addition, organochlorine pesticides may become airborne as the particulates onto which
they are adsorbed are emitted into the atmosphere as fugitive dust. Due to the high adsorption
potential, they are very persistent in soil under both aerobic and anaerobic conditions.
Project No. 09017-06-01 - 4 - November 10, 2000
3.4 Routes of Exposure
An exposure pathway is a mechanism by which an individual is exposed to a chemical. Exposure
pathways are determined based on chemical and physical characteristics of the chemical and the
potential for human contact to the chemical or to media that contain the chemical.
Potential routes of exposure to organochlorine pesticides addressed in this preliminary health risk
evaluation include inadvertent ingestion of soil and dust, inhalation of dust particles containing
adsorbed chemicals, and direct dermal (skin) contact with soil.
3.5 Potential Human Receptors
Persons may potentially be exposed to pesticides existing in on-site soil prior to development, during
constmction activities and subsequent to development as residents. For the purpose of the preliminary
human health risk evaluation, focus is placed on the most sensitive target populations. The most
sensitive target populations are those persons who may be exposed for the longest duration and/or at
the highest level. Others considered less sensitive would be adequately addressed through focus on the
most sensitive potential receptors.
3.5.1 Residential Land Use
The most sensitive target population, subsequent to development, would be an occupant ofa future on-
site residence, in consideration of the amount of time that person would be potentially exposed,
including aduhs as well as children. For both the child and adult target populations, they may
inadvertenfiy ingest soil and dust, have direct dermal contact with the soil, and inhale volatiles.
Children considered to be most sensitive receptors are those below the age of seven; children age
seven or greater would spend a significant portion of the day at school and would not be exposed
during this time away from the site. Persons who may work on-site or others who may be exposed for
short durations are considered to be relatively less sensitive.
3.6 Risk Characterization
The screening evaluation calculates a risk for soil and air pathways. Because ofthe expected depth to
groundwater and the absence of existing or planned groundwater use at the site, risk from ingestion of
groundwater is not considered significant and is excluded from this evaluation.
Project No. 09017-06-01 - 5 - November 10, 2000
3.6.1 Soil Pathway
The carcinogenic risk from ingestion of and dermal contact with DDE in soil is calculated from the
equation in Figure 2.3 of the PEA Guidance Manual:
Risk. soil (SFo xCs X (1.57 X 10'*) +(SFo xCs x (1.87 x 10"^) x ABS
Where:
SFo
Cs
ABS
Oral cancer slope factor (mg/kg-day)"' (Reference: US EPA PRGs, 1998)
Concenfration of compound in soil, mg/kg (maximum detected value)
Absorption Factor (no units) (Reference: PEA Guidance Manual, 1994)
The risk calculated is a summation of the incidental soil ingestion exposure for a child and an adult
and the dermal exposure for an adult and a child.
Organochlorine
Pesticide Cs SFo ABS Estimated Risk
DDD 0.094 2.4 X 10'' 0.05 5.65 x 10'^
DDE 0.429 3.4 X 10'' 0.05 3.65 x 10'^
DDT 0.318 3.4 X 10'' 0.05 2.70 X 10''
Dieldrin 0.037 1.6 X lO' 0.05 1.48x10'*
This screening evaluation indicates that the risk from ingesting soil containing these compounds at the
maximum concenfration detected onsite over a 70 year averaging time is approximately one to two
orders of magnitude less than the current acceptable risk threshold of 1 x 10'*. No further evaluation of
risk at this site is warranted.
3.6.2 Air Pathway
The carcinogenic risk from inhalation of soil particles containing DDE is calculated from the equation
in Figure 2.4 of the PEA Guidance Manual:
Riska SFi xCax 0.149
Project No. 09017-06-01 -6 November 10, 2000
Where:
SF,
Ca
Ca
inhalation cancer slope factor, (mg/kg-day)''
Concenfration of compound in air, mg/rn
Cs X (5 X 10'* kg/rn)
Organochlorine Pesticide Cs Ca SFi Estimated Risk
DDD 0.094 4.7 X 10'' 2.4 X 10"' 1.68 X 10''"
DDE 0.429 2.15 X 10'* 3.4 X 10'' 1.09x10''
DDT 0.318 1.59 X 10'* 3.4 X 10'' 8.05 X 10''°
Dieldrin 0.037 1.85 X 10'' 1.6x10' 4.41 X 10'"
Project No. 09017-06-01 November 10, 2000
4.1
4. CONCLUSIONS AND RECOMMENDATIONS
Agricultural Chemical Assessment
Soil samples collected and analyzed for agricultural chemicals exhibited detectable concentrations of
DDD, DDE, DDT, and dieldrin.
A document issued by the EPA entitled Region 9 Preliminary Remediation Goals (PRGs), 1998 was
reviewed to compare the concenfrations of pesticides detected in on-site soil to the respective PRGs
for soil in a residential setting. The EPA has also established generic soil screening levels (SSLs) for
the protection of groundwater. Two different SSLs are listed by the EPA depending on the degree of
dilution and attenuation between the source and a receptor well. The PRGs and SSLs listed by the
EPA for DDD, DDE, and DDT, and dieldrin are presented in the table below.
Organochlorine
Pesticide
PRGs
(jig/kg)
Maximum
Concentration
Detected at Site
(^g/kg)
SSLs (ug/kg)
Organochlorine
Pesticide
PRGs
(jig/kg)
Maximum
Concentration
Detected at Site
(^g/kg) DAF20 DAFl
DDD 1,900 94 16,000 800
DDE 1,300 429 54,000 3,000
DDT 1,300 318 32,000 2,000
Dieldrin 28 37 4 0.2
Note:
DAP 20 = Soil screening level considering natural degradation and breakdown processes
DAP 1 = Soil screening level assuming no dilution or attenuation
Based on a comparison of DDD, DDE, and DDT, concentrations detected in the soil samples collected
with the PRGs and SSLs established by the EPA, a significant threat to public health or underlying
groundwater does not appear to exist at the site. The maximum dieldrin concenfration detected on-site
exceeds the PRG and SSLs, however, the estimated risk to human health is substantially less than
1 X 10-6.
4.2 Human Health Risk Screening Assessment
The risk assessment indicates that the incremental risks of cancer in the most sensitive target
populations from exposure to DDD, DDE, DDT and dieldrin present in on-site soil are estimated to be
less than one in 100,000 persons potentially exposed. According to the State of Califomia, it is not
necessary to provide notice of the presence of these compounds in order to comply with Proposition
Project No. 09017-06-01 November 10, 2000
65 legislation (CCR, Title 22, Section 12000) and additional measures to protect human health from
carcinogenic effects are not warranted.
Based on these findings, mitigative measures as described in the Carlsbad Zone 20 Specific Plan do
not appear to be warranted. However, a review of the map provided to Geocon indicates that areas of
cut and fill are planned for the grading of the site. Common grading practices likely to be employed at
the site include the removal of topsoil and recompacting it as fill. This will further reduce the potential
for exposure of these compounds in soil to future residents.
Project No. 09017-06-01 - 9 - November 10, 2000
5. LIMITATIONS
This report has been prepared solely for the Client, in consideration of the Client's requirements.
Other parties may rely on the findings and conclusions of the report for informational purposes only.
However, the Client and other parties who may rely on the findings and conclusions of the report
should recognize that this report is not a comprehensive site characterization and should not be
construed as such. The findings and conclusions in this report are predicated on the services provided.
Therefore, the report should only be deemed conclusive with respect to the information obtained. No
guarantee ofthe results of the study is implied within the intent of this report or any subsequent report,
correspondence or consultation, either express or implied. The services performed were conducted in
accordance with the local standard of care in the geographic region at the time the services were
rendered.
Project No. 09017-06-01 -10- November 10, 2000
COSMOS
SOURCE : 2000 THOMAS BROTHERS MAP
SAN DIEGO COUNTY, CALIFORNIA
REPRODUCED WITH PERMISSION GRANTED BY THOMAS BROTHERS MAPS.
THIS MAP IS COPYRIGHTED BY THOMAS BROS. MAPS. IT IS UNLAWFUL TO COPY
OR REPRODUCE ALL OR ANY PART THEREOF, WHETHER FOR PERSONAL USE OR
RESALE, WITHOUT PERMISSION
4
M NO SCALE
GEOCON
CONSULTANTS, INC.
ENVIRONMENTAL SERVICES
6970 FLANDERS DRIVE - SAN DIEGO, CALIFORNIA 92121 - 2974
PHONE 858 558-6100 - FAX 858 558-8437
CSK / JMW DSK/EOOOO
VICINITY MAP
TABATA FARMS
CARLSBAD, CALIFORNIA
DATE PROJECT NO. 09017 - 06 - 01 FIG. 1
X/H14'lDRAnTNa.llMW/tli:'lABAIAl
I
LJ-
B4
DEPTH (FT) DDD DDE DDT DIELDRIN
0-0.5 10.20 54.00 38.00 4.11
2-2.5 3.40 12.80 12.30 2.44
/ •. 'r
1 1 •
'A
» i
•<
.1
.i
B2
DEPTH (FT) DDD DDE DDT DIELDRIN
0-0.5 60.00 230.00 178.00 32.00
2-2.5 9.60 30.70 31.70 6.37
f; i
!
) 1
t
I .
/
/
1
>
; 7 -1
B5
DEPTH (FT) DDD DDE DDT DIELDRIN
0-0.5 19.00 45.50 45.80 4.48
2-2.5 5.00 28.40 17.20 1.92
'I II STUDY NO. 12
ipn '7(
• w V.
SITE PLAN WITH RESULTS OF SOIL SAMPLING (OaOBER 13, 2000)
TABATA FARMS
CARLSBAD, CALIFORNIA
•
M
scale: 1" = 80'
LEGEND
.APPROX. LOCATION OF BORING
ALL UNITS ARE MICROGRAMS PER
KILOGRAM (ug/kg)
ONLY ANALYTES WITH CONCENTRATIONS
ABOVE REPORTING LIMITS ARE INCLUDED.
ALL OTHER ANALYTES WERE BELOW
DETECTION LIMITS AS STATED IN OFFICIAL
LABORATORY REPORTS
GEOCON
CONSULTANTS, INC.
ENVIRONMENTAL • GEOTECHNICAL • MATERIALS
6970 FLANDKS DRIVE - SAN DIEGO, CAUFORNIA 92121 - 2974
PHONE 858 558-6100 - FAX 858 558-8437
PROJECT NO. 09017-06-01
FIGURE 2
DATE
X/R14/1 DRAFTING/JIMWni 12/TABATA2
TABLE I
ANALYTICAL DATA SUMMARY - ORGANOCHLORINE PESTICIDES
Sample Identification
DL Bl-S Bl-2 B2-S B2-2 B3-S B3-2 B4-S B4-2 B5-S B5-2
4,4'-DDD 0.5 94.0 8.76 60.0 9.6 66.0 5.3 10.2 3.40 19.0 5.0
4,4'-DDE 2.0 429.0 34.5 230.0 30.7 298.0 24.0 54.0 12.8 45.5 28.4
4,4'-DDT 1.6 318.0 30.0 178.0 31.7 249.0 16.0 38.0 12.3 45.8 17.2
Aldrin 0.2 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Alpha-BHC 0.6 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Beta-BHC 0.6 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Gamma-BHC 0.3 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Delta-BHC 0.6 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Alpha-chlordane 0.5 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Gamma-chlordane 0.5 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Dieldrin 0.3 37.0 6.36 32.0 6.37 14.0 2.38 4.11 2.44 4.48 1.92
Endosulfan I 0.3 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Endosulfan II 0.5 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Endosulfan Sulfate 0.5 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Endrin 0.4 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Endrin Aldehyde 0.5 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Endrin Ketone 0.5 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Heptachlor 0.2 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Heptachlor Epoxide 0.3 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Methoxychlor 10.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Toxaphene 25 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
All concentrations presented in
DL = Detection Limit
<DL = Concentration is below
micrograms per kilogram,
the detection limit.
Project No. 09017-06-01 November 10, 2000
TABLE li
ANALYTICAL DATA SUMMARY - ORGANOCHLORINE HERBICIDES
Sample Identification
DL Bl-S Bl-2 B2-S B2-2 B3-S B3-2 B4-S B4-2 B5-S B5-2
2,4,5-T 1.2 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
2,4, DB 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
2,4-D 1.1 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
4-Nifrophenol 1.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Dalapon 0.5 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Dicamba 0.6 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Dichloroprop 0.8 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Dinoseb 1.1 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
MCPA 200.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
MCPP 150.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Pentachlorophenol 1.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Picloram 1.1 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Silvex 1.2 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
All concentrations in micrograms per kilogram.
DL = Detection Limit.
<DL = Concentration is below the detection limit.
Project No. 09017-06-01 November 10, 2000
TABLE Mi
ANALYTICAL DATA SUMMARY - ORGANOPHOSPHATE PESTICIDES
Sample Identification
DL Bl-S Bl-S B2-S B2-2 B3-S B3-2 B4-S B4-2 B5-S B5-2
Azinphos Methyl 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Bolstar 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Coumaphos 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Demeton 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Diazinon 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Dichlorvos 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Disulfoton 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Dursban (Chlorpyrifos) 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Ethylprop 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Fensulfothion 10.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Fenthion 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Gardon (Stirophos) 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Merphos 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Methyl Parathion 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Mevinphos 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Naled 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Phorate 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Ronnel 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Tokuthion 5.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL
Trichloronate 5.0 <DL <DL <DL <DL <DL <DL .<DL <DL <DL <DL
All concentrations presented in micrograms per kilogram.
DL = Detection Limit.
<DL = Concentration is below the detection limit.
Project No. 09017-06-01 November 10, 2000
APPENDIX
GEOCON
CONSULTANTS, INC.
ENVIRONMENTAL • GEOTECHNICAL • MATERIALS
Proposal No. LE-2000-128
September 8, 2000
Second Revision October 6, 2000
VIA FACSIMILE AND U. S. MAIL
Mr. Bill Kennedy
The Brehm Companies
5770 Oberlin Drive
San Diego, Califomia 92121 -1723
Subject: TABATA PROPERTY
CARLSBAD, CALIFORNIA
PROPOSAL - AGRICULTURAL CHEMICAL RESIDUE SURVEY
Dear Mr. Kennedy:
Geocon Consultants, Inc. has prepared this revised proposal to perform limited soil sampling at the site.
Based upon information obtained from the City of Carlsbad, the subject site may have been used for
commercial agricultural purposes, and is therefore requiring that an Agricultural Chemical Residue
Survey be performed. The site is approximately 5 acres located adjacent to the east of Black Rail Road,
Carlsbad, Califomia. The County of San Diego Assessor's Parcel Number is 215-040-04.
PURPOSE AND SCOPE OF SERVICES
Based on a review of a portion of the City of Carlsbad's Zone 20 Plan, the following scope of work will
be performed to evaluate the potential presence of organochlorine pesticides, organophosphate
pesticides, and chlorinated herbicides in near-surface soil at the subject site:
Task I - Pre-Field Activities
Prepare a Health and Safety Plan for the use of Geocon employees during the field activities. The Heahh
and Safety Plan would recommend levels of personal protective equipment during the field activities and
would outline general health and safety considerations.
6970 Flanders Drive • San Diego, California 92121-2974 • Telephone (858) 558-6100 • Fox |858) 558-8437
Task II - Field Activities
• Collect soil samples at five random locations on the site. The samples would be collected at depths
of approximately 0 to 6 inches, 1 to VA feet, and 2 to lYi feet below the existing ground surface.
The samples would be collected using a hand auger, fransferred to laboratory-supplied glass jars,
capped with Teflon-lined lids, labeled, placed in a cooler with ice, and transported to a Califomia
Department of Health Services (CDOHS)-certified analytical laboratory.
• Subject the 5 soil samples collected from approximately 0 to 6 inches feet below the existing ground
surface to analyses for organochlorine pesticides following United States Environmental Protection
Agency (EPA) Test Method 8081, for organochlorine herbicides following EPA Test Method 8151,
and for organophosphate pesticides by EPA Test Method 8141. Samples collected from
approximately 1 to VA and 2 to IVz feet below the ground surface will be held for potential future
testing, pending the results of the initial analyses.
• Backfill the resulting hand-augered borings with the soil cuttings generated.
Task III - Report Preparation
Prepare a report summarizing the findings of the soil sampling and laboratory testing. A figure showing
the locations of the samples, the results of the laboratory analyses, and the resuhs of the quality
assurance/quality control procedures will be included in the report.
PROPOSED FEE
Geocon proposes to perform the scope of services outlined herein on a "lump sum" basis for a fee of .
The fee is based on the anticipated conditions presented herein. The fee also assumes the laboratory test
results would be provided on a standard tiirn-around-time basis of approximately seven to ten working
days. If different conditions are identified or as additional information is obtamed, it may become
necessary to revise the scope of services and associated fee.
The fee is valid for a period of 60 days from the date of this proposal. The fee includes the submittal of
two copies of the final report. Drafts or additional copies may be requested for an additional
administrative fee. Geocon anticipates that a fmal report would be completed and submitted whhin
approximately three weeks of authorization to proceed.
One invoice would be submitted with the final report. Consuhation services rendered after the issuance
ofthe report would be billed on a "time and materials" basis and would be additive to the "lump sum"
fee.
Proposal No. LE-2000-128 -2- September 8, 2000
Second Revision October 6, 2000
EXECUTION OF CONTRACT
Please carefully review the contents of this proposal, the enclosed Schedule of Fees for Environmental
Services, and the enclosed Terms for Environmental Engineering Services. If they meet with your
approval, execute both copies of the Terms for Environmental Engineering Services and retum both
copies to our office. We will then sign the documents and retum one fully executed copy to you.
Please note that it is necessary to initial each page, indicate your project representative or designated
agent on the first sheet of the Terms for Environmental Engineering Services, and indicate the address
where all notices and communications should be sent.
Please call us if you have any questions.
Sincerely,
GEOCON CONSULTANTS, INC.
ofrqh,CEG 1527
logi^t
RJK:lek
(2) Addressee
Enclosures: TEES; Schedule of Fees
Proposal No. LE-2000-128 -3- September 8, 2000
Second Revision October 6, 2000
APPENDIX
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858)566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Project Name:
Log Number:
10/20/00
10/13/00
10/13/00
10/13,16,17/00
October 16 and 18,2000
EA
Soil
09017-06-01
00-4324 to 00-4338
The sample(s) were analyzed with EPA methodology or equivalent methods as specified on the
attached "Analyses Results" report. The symbol for "less than" indicates a value below the
reportable detection limit.
The results of these analyses and the quality control data are enclosed.
Ellen Atienza
Operations Manager
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Method:
Units:
Analyzed By:
Sample Type:
Project Name:
Log Number:
10/20/00
10/13/00
10/13/00
10/16/00
October 16,2000
EPA 3550/3620/8081
Ug/kg
EA
Soil
09017-06-01
00-4324
Detection
Limit
Log Number:
Sample ID:
00-4324
Bl-S
ANALVSIS *DF
4,4' - DDD 5.0 94 10
4,4' - DDE 20 429 40
4,4' - DDT 16 318 40
Aldrin 0.2 <DL
Alpha- BHC 0.6 <DL
Beta - BHC 0.6 <DL
Gamma -BHC 0.3 <DL
Delta - BHC 0.6 <DL
Alpha-chlordane 0.5 <DL
Gamma-chlordane 0.5 <DL
Dieldrin 3.0 37 10
Endosulfan I 0.3 <DL
Endosulfan II 0.5 <DL
Endosulfan Sulfate 0.4 <DL
Endrin 0.4 <DL
Endrin Aldehyde 0.5 <DL
Endrin Ketone 0.5 <DL
Heptachlor 0.2 <DL
Heptachlor Epoxide 0.3 <DL
Methoxychlor 10 <DL
Toxaphene 25 <DL
Ellen Atienza
Operations Manager
• DF= Dilution Factor. The detection limits and analyses results were corrected accordingly.
D-TEK Analytical Laboratones, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Method:
Units:
Analyzed By:
Sample Type:
Project Name:
Log Number:
10/20/00
10/13/00
10/13/00
10/16/00
October 16, 2000
EPA 3550/3620/8081
lig/kg
EA
Soil
09017-06-01
00-4327
Detection
Limit
Log Number:
Sample ID:
00-4327
B2-S
ANALYSIS *DF
4,4' - DDD 5.0 60 10
4,4' - DDE 5.0 230 10
4,4' - DDT 4.0 178 10
Aldrin 0.2 <DL
Alpha- BHC 0.6 <DL
Beta - BHC 0.6 <DL
Gamma -BHC 0.3 <DL
Delta - BHC 0.6 <DL
Alpha-chlordane 0.5 <DL
Gamma-chlordane 0.5 <DL
Dieldrin 3.0 32 10
Endosulfan I 0.3 <DL
Endosulfan II 0.5 <DL
Endosulfan Sulfate 0.4 <DL
Endrin 0.4 <DL
Endrin Aldehyde 0.5 <DL
Endrin Ketone 0.5 <DL
Heptachlor 0.2 <DL
Heptachlor Epoxide 0.3 <DL
Methoxychlor 10 <DL
Toxaphene 25 <DL
Ellen Atienza
Operations Manager
• DF= Dilution Factor. The detection limits and analyses results were corrected accordingly.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Method:
Units:
Analyzed By:
Sample Type:
Project Name:
Log Number:
10/20/00
10/13/00
10/13/00
10/16/00
October 16,2000
EPA 3550/3620/8081
Ug/kg
EA
Soil
09017-06-01
00-4330
Detection
Limit
Log Number:
Sample ID:
00-4330
B3-S
ANALYSIS *DF
4,4' - DDD 5.0 66.0 10
4,4' - DDE 10.0 298 20
4,4' - DDT 8.0 249 20
Aldrin 0.2 <DL
Alpha- BHC 0.6 <DL
Beta - BHC 0.6 <DL
Gamma -BHC 0.3 <DL
Delta - BHC 0.6 <DL
Alpha-chlordane 0.5 <DL
Gamma-chlordane 0.5 <DL
Dieldrin 0.3 14.0
Endosulfan 1 0.3 <DL
Endosulfan 11 0.5 <DL
Endosulfan Sulfate 0.4 <DL
Endrin 0.4 <DL
Endrin Aldehyde 0.5 <DL
Endrin Ketone 0.5 <DL
Heptachlor 0.2 <DL
Heptachlor Epoxide 0.3 <DL
Methoxychlor 10 <DL
Toxaphene 25 <DL
Ellen Atienza
Operations Manager
* DF= Dilution Factor. The detection limits and analyses results were corrected accordingly.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Method:
Units:
Analyzed By:
Sample Type:
Project Name:
Log Number:
ANALYSIS
Detection
Limit
10/20/00
10/13/00
10/13/00
10/16/00
October 16, 2000
EPA 3550/3620/8081
lig/kg
EA
Soil
09017-06-01
00-4333
Log Number:
Sample ID:
00-4333
B4-S
"DF
4,4' - DDD 0.5
4,4' - DDE 2.5
4,4' - DDT 2.0
Aldrin 0.2
Alpha- BHC 0.6
Beta - BHC 0.6
Gamma - BHC 0.3
Delta - BHC 0.6
Alpha-chlordane 0.5
Gainma-chlordane 0.5
Dieldrin 0.3
Endosulfan I 0.3
Endosulfan II 0.5
Endosulfan Sulfate 0.4
Endrin 0.4
Endrin Aldehyde 0.5
Endrin Ketone 0.5
Heptachlor 0.2
Heptachlor Epoxide 0.3
Methoxychlor 10
Toxaphene 25
10.2
54.0
38.0
<DL
<DL
<DL
<DL
<DL
<DL
<DL
4.11
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
5
5
Ellen Atienza — '
Operations Manager
* DF= Dilution Factor. The detection limits and analyses results were corrected accordingly.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Method:
Units:
Analyzed By:
Sample Type:
Project Name:
Log Number:
10/20/00
10/13/00
10/13/00
10/16/00
October 16,2000
EPA 3550/3620/8081
Pg/kg
EA
Soil
09017-06-01
00-4336
Detection
Limit
Log Number:
Sample ID:
00-4336
B5-S
ANALYSIS *DF
4,4' - DDD 2.5 19.0 5
4,4' - DDE 2.5 45.5 5
4,4' - DDT 2.0 45.8 5
Aldrin 0.2 <DL
Alpha- BHC 0.6 <DL
Beta - BHC 0.6 <DL
Gamma - BHC 0.3 <DL
Delta - BHC 0.6 <DL
Alpha-chlordane 0.5 <DL
Gamma-chlordane 0.5 <DL
Dieldrin 0.3 4.48
Endosulfan 1 0.3 <DL
Endosulfan 11 0.5 <DL
Endosulfan Sulfate 0.4 <DL
Endrin 0.4 <DL
Endrin Aldehyde 0.5 <DL
Endrin Ketone 0.5 <DL
Heptachlor 0.2 <DL
Heptachlor Epoxide 0.3 <DL
Methoxychlor 10 <DL
Toxaphene 25 <DL
Ellen Atienza
Operations Manager
* DF= Dilution Factor . The detection limits and analyses results were corrected accordingly.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Method:
Units:
Analyzed By:
Sample Type:
10/20/00
10/13/00
10/13/00
10/17/00
October 18,2000
EPA 8151/8151
>g/kg
EA
Soil
Project Name: 09017-06-01
Log Number: 00-4324, 00-4327 and 00-4330
Detection Log Number: 00-4324 00-4327 00-4330
ANALYSIS Limit Sample ID: Bl-S B2-S B3-S
2,4,5 - T 1.2 <D.L. <D.L. <D.L.
2,4, DB 5.0 <D.L. <D.L. <D.L.
2,4, - D 1.1 <D.L. <D.L. <D.L.
4 - Nitrophenol 1.0 <D.L. <D.L. <D.L.
Dalapon 0.5 <D.L. <D.L. <D.L.
Dicamba 0.6 <D.L. <D.L. <D.L.
Dichloroprop 0.8 <D.L. <D.L. <D.L.
Dinoseb 1.1 <D.L. <D.L. <D.L.
MCPA 200.0 <D.L. <D.L. <D.L.
MCPP 150.0 <D.L. <D.L. <D.L.
Pentachlorophenol 1.0 <D.L. <D.L. <D.L.
Picloram 1.1 <D.L. <D.L. <D.L. '
Silvex 1.2 <D.L. <D.L. <D.L.
Ellen Atienza
Operations Manager
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
10/20/00
10/13/00
10/13/00
10/17/00
Date Analyzed: October 18,2000
Method: EPA 8151/8151
Units: >g/kg
Analyzed By: EA
Sample Type: Soil
Project Name: 09017-06-01
Log Number: 00-4333 and 00-4336
Detection Log Number: 00-4333 00-433(
ANALYSIS Limit Sample ID: B4-S B5-S
2,4,5 - T 1.2 <D.L. <D.L.
2,4, DB 5.0 <D.L. <D.L.
2,4, - D 1.1 <D.L. <D.L.
4 - Nitrophenol 1.0 <D.L. <D.L.
Dalapon 0.5 <D.L. <D.L.
Dicamba 0.6 <D.L. <D.L.
Dichloroprop 0.8 <D.L. <D.L.
Dinoseb 1.1 <D.L. <D.L.
MCPA 200.0 <D.L. <D.L.
MCPP 150.0 <D.L. <D.L.
Pentachlorophenol 1.0 <D.L. <D.L.
Picloram 1.1 <D.L. <D.L.
Silvex 1.2 <D.L. <D.L.
Ellen Atienza
Operations Man'ager
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858)566-4540 FAX (858) 566-4542
QUALITY CONTROL DATA REPORT
Date:
Attn:
Log#
Date Extracted:
Date Analyzed:
Extraction Method:
Analysis Method:
10/20/00
Mr. Ron Kofron
00-4324, 00-4327, 00-4330, 00-4333 and 00-4336
10/17/00
October 18,2000
EPA 8151
EPA 8151
Method Blank
NO TARGET ANALYTES WERE DETECTED IN THE METHOD BLANK.
LABORATORY CONTROL STANDARD
COMPOUND % RECOVERY DUP % RECOVERY % RPD
2,4-D
2,4,5 - TP (SILVEX)
2,4,5 - T
80
113
94
78
105
85
3
7
10
DUALITY CONTROL TERIVIINOLOGY
LCS - LABORATORY CONTROL SAMPLE. Reported as % recovery of an independent standard carried through all
sample preparation procedures to verify method performance. Acceptable range is based on historical laboratory control data
and EPA requirements. Any out-of-control QC data is clearly indicated.
SPIKE- environmental sample is matrix spiked with method compounds and % recovery of concentration spiked into sample is
calculated. Reported as % recovery. Acceptable range for "Normal Matrix Sample" is based on historical laboratory control
data. Any out-of-control QC data is clearly indicated.
SURROGATES- Compounds representative of a group of compounds. Surrogates are spiked into environmental samples and
% recovery of concentration spiked is calculated and reported. Acceptable range varies depending on sample matrix and
analysis method. Any out-of-control QC data is clearly indicated.
1
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
SURROGATE RECOVERIES
(DCAA)
Log # Percent Recovery:
Method Blank 93%
00-4324 106%
00-4327 128%
00-4330 108%
00-4333 64%
00-4336 68%
LCS 103%
LCS DUP 103%
QC Limits: 50 to 170%
Ellen Atienza
Operations Manager
QUALITY CONTROL TERMINOLOGY
LCS - LABORATORY CONTROL SAMPLE. Reported as % recovery of an independent standard carried through all
sample preparation procedures to verify method performance. Acceptable range is based on historical laboratory control data
and EPA requirements. Any out-of-control QC data is clearly indicated.
SPIKE- environmental sample is matrix spiked with method compounds and % recovery of concentration spiked into sample is
calculated. Reported as % recovery. Acceptable range for "Normal Matrix Sample" is based on historical laboratory control
data. Any out-of-control QC data is clearly indicated.
SURROGATES- Compounds representative of a group of compounds. Surrogates are spiked into environmental samples and
% recovery of concentration spiked is calculated and reported. Acceptable range varies depending on sample matrix and
analysis method. Any out-of-control QC data is clearly indicated.
2
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Method:
Units:
Sample Type:
Project Name:
Log Number:
10/20/00
10/13/00
10/13/00
10/13/00
October 18, 2000
EA
EPA 8141/8141
Mg/kg
Soil
09017-06-01
00-4324 and 00-4327
ANALYSES RESULTS
Analysis Detection Limit Log Number: 00-4324 00-4327
Sample ID: Bl-S *DF B2-S
Azinphos Methyl 5.0 <DL <DL
Bolstar 5.0 <DL <DL
Coumaphos 5.0 <DL <DL
Demeton 5.0 <DL <DL
Diazinon 5.0 <DL <DL
Dichlorvos 5.0 <DL <DL
Disulfoton 5.0 <DL <DL
Dursban (Chlorpyrifos) 5.0 <DL <DL
Ethoprop 5.0 <DL <DL
Fensulfothion 10.0 <DL <DL
Fenthion 5.0 <DL <DL
Gardona (Stirophos) 5.0 <DL <DL
Merphos 5.0 <DL <DL
Methyl Parathion 5.0 <DL <DL
Mevinphos 5.0 <DL <DL
Naled 5.0 <DL <DL
Phorate 5.0 <DL <DL
Ronnel 5.0 <DL <DL
Tokuthion 5.0 <DL <DL
Trichloronate 5.0 <DL <DL
*DF
Ellen Atienza
Operations Manager
* DF= Dilution Factor. The detection limits and analyses results were corrected accordingly.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Method:
Units:
Sample Type:
Project Name:
Log Number:
10/20/00
10/13/00
10/13/00
10/13/00
October 18, 2000
EA
EPA 8141/8141
• Ug/kg
Soil
09017-06-01
00-4330 and 00-4333
ANALYSES RESULTS
Analysis Detection Limit Log Number: 00-4330 00-4333 Analysis
Sample ID: B3-S *DF B4-S
Azinphos Methyl 5.0 <DL <DL
Bolstar 5.0 <DL <DL
Coumaphos 5.0 <DL <DL
Demeton 5.0 <DL <DL
Diazinon 5.0 <DL <DL
Dichlorvos 5.0 <DL <DL
Disulfoton 5.0 <DL <DL
Dursban (Chlorpyrifos) 5.0 <DL <DL
Ethoprop 5.0 <DL <DL
Fensulfothion 10.0 <DL <DL
Fenthion 5.0 <DL <DL
Gardona (Stirophos) 5.0 <DL <DL
Merphos 5.0 <DL <DL
Methyl Parathion 5.0 <DL <DL
Mevinphos 5.0 <DL <DL
Naled 5.0 <DL <DL
Phorate 5.0 <DL <DL
Ronnel 5.0 <DL <DL
Tokuthion 5.0 <DL <DL
Trichloronate 5.0 <DL <DL
"DF
Ellen Atienz;
Operations Manager
* DF= Dilution Factor. The detection limits and analyses results were corrected accordingly.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Method:
Units:
Sample Type:
Project Name:
Log Number:
10/20/00
10/13/00
10/13/00
10/13/00
October 18, 2000
EA
EPA 8141/8141
•Ug/kg
Soil
09017-06-01
00-4336
ANALYSES RESULTS
Analysis Detection Limit Log Number
Sample ID:
00-4336
B5-S "DF
Azinphos Methyl
Bolstar
Coumaphos
Demeton
Diazinon
Dichlorvos
Disulfoton
Dursban (Chlorpyrifos)
Ethoprop
Fensulfothion
Fenthion
Gardona (Stirophos)
Merphos
Methyl Parathion
Mevinphos
Naled
Phorate
Ronnel
Tokuthion
Trichloronate
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
10.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
Ellen Atienza
Operations Manager
* DF= Dilution Factor. The detection limits and analyses results were corrected accordingly.
I
I
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
Date:
Attn:
Log#:
Date Extracted:
Date Analyzed:
Extraction Method:
Analysis Method:
Method Blank
QUALITY CONTROL DATA REPORT
10/20/00
Mr. Ron Kofron
00-4324,00-4327,00-4330, 00-4333 and 00-4336
10/13/00
October 18,2000
EPA 8141
EPA 8141
No target analytes were detected in the method blank.
Laboratory Control Sample
Compound
Diazinon
Dursban (Chlorpyrifos)
Gardona (Stirophos)
Methyl Parathion
% Recovery
98
93
104
DUP % Recovery
91
101
100
107
%RPD
3
3
7
3
SURROGATE RECOVERIES
(Tributylphosphate)
Log# Percent Recovery:
Method Blank
00-4324
00-4327
00-4330
00-4333
00-4336
92%
73%
104%
103%
90%
113%
QC Limits: 50 to 170%
Ellen Atienza
Operations Manager
QUALITY CONTROL TERMINOLOGY
LCS - LABORATORY CONTROL SAMPLE. Reported as % recovery of an independent standard carried through all
sample preparation procedures to verify method performance. Acceptable range is based on historical laboratory control data
and EPA requirements. Any out-of-control QC data is clearly indicated.
Spike- environmental sample is matrix spiked with method compounds and % recovery of concentration spiked into sample is
calculated. Reported as % recovery. Acceptable range for "Normal Matrix Sample" is based on historical laboratory control
data. Any out-of-control QC data is clearly indicated.
Surrogates- Compounds representative of a group of compounds. Surrogates are spiked into environmental samples and %
recovery of concentration spiked is calculated and reported. Acceptable range varies depending on sample matrix and analysis
method. Any out-of-control QC data is clearly indicated.
Pase 1
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
QUALITY CONTROL DATA REPORT
Date: 10/20/00
Attn: Mr. Ron Kofron
Log#: 00-4324, 00-4327,00-4330,00-4333 and 00-4336
Date Extracted: 10/16/00
Date Analyzed: October 16,2000
Extraction Method: EPA 3550 / 3620
Analysis Method: EPA 8081
METHOD BLANK
No target analytes were detected in the method blank.
LABORATORY CONTROL STANDARD
Compound % Recovery DUP % Recovery % RPD QC Limits %
G-BHC(Lindane) 109 111 2 32-127
Heptachlor 101 104 3 34-111
Aldrin 108 no 2 42-122
Dieldrin 99 101 2 36-146
Endrin 103 104 1 30-147
4,4' DDT 75 77 3 25-160
PCB(1260) 108 108 0 29-131
SURROGATE RECOVERIES
(Tetrachloro-M-Xylene)
Log# Percent Recovery:
00-4324 92%
00-4327 88%
00-4330 110%
00-4333 104%
00-4336 112%
LCS 112%
LCS DUP 114% QC Limits: 43 to 169%
Ellen Atienza ^—
Operations Manager
QUALITY CONTROL TERMINOLOGY
LCS - LABORATORY CONTROL SAMPLE. Reported as % recovery of an independent standard carried through all sample
preparation procedures to verify method performance. Acceptable range is based on historical laboratory control data and EPA
requirements. Any out-of-control QC data is clearly indicated.
Spike- environmental sample is matrix spiked with method compounds and % recovery of concentration spiked into sample is calculated.
Reported as % recovery. Acceptable range for "Normal Matrix Sample" is based on historical laboratory control data. Any out-of-control
QC data is clearly indicated.
Surrogates- Compounds representative of a group of compounds. Surrogates are spiked into environmental samples and % recovery of
concentration spiked is calculated and reported. Acceptable range varies depending on sample matrix and analysis method. Any out-of-
control QC data is clearly indicated.
^.T^IPI^naipiial LHVirat
9020 Kenamar Drive, Suite 205
SAN DIEGO, CA 92121 "CITAIN'O'FGUISTODY "
D-TEK LOG #:
13
TO #:
- ALL SAMPLES ARE SUBJECT TO TERMS AND CONDITIONS ON REVERSE SIDE
Ch4tnofCustodyFonn.xls 2IW%
9020 Kenamar Drive, Suite 205
SAN DIEGO, CA 92121
(858) 566-4540, FAX (858) 566-4542
at^
CHAIN OF CUSTODY DATE
D-TEK LOG #:
PAGE
TO
CUSTOMER INFORMATION PROJECT INFORMATION ANALYSIS REQUEST
ANY CONTACWERSON: PROJECT NAME/NUMBER
PROJECT MANAGER: BILLING INFORMATION
>: J ^ . CITY, ZIP
D-TEK LOG # SAMPLE # / SAMPLE IDENTIFICATION
SAMPLE
DATE
SAMPLE
TIME
SAMPLE
MATRIX
CONTAIN
TYPE
OF
C
O
N
T
A
N
E
R
S
I
ol
3^
SAMPLE INTEGRITY
1. RELINQUISHED BY
MEETS HOLDING TIME 7 Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N
CORRECT CONTAINERS 7 Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N
2. RELINQUISHED BY 3. RELINQUISHED BY SAMPLE RECEIPT SPECIAL INSTRUCTIONS
DATE AND TIME: DATE AND TIME: DATE AND TIME: RECEIVED IN ICE? YES^JO
SIGNATUR SIGNATURE: SIGNATURE: TAPE SEAL INTACT Y/N NA
PRINTED NAME PRINTED NAME: PRINTED NAME PRESERVATIVE YESflJONA
1. RECEIVED BY
DATE AND TIME:
SIGNATURE
2. RECEIVED BY 3. RECEIVED BY PRECAUTIONS:
DATE AND TIME: DATE AND TIME
PRINTED HM,
SIGNATURE: SIGNATURE,
PRINTED NAME: PRINTED NAME
- ALL SAMPLES ARE SUBJECT TO TERMS AND CONDITIONS ON REVERSE SIDE -
Ch4in of Custody Form,xls W%%
Nov 03 00 12:56p P-2
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log#:
11/3/00
10/13/00
10/13/00
10/27/00 and 10/31/00
October 27 and November 1,2000
EA
Soil
EPA 3550/3620/8081, EPA 3550/8141 and
EPA 8151/8151
[ig/kg
09017-06-01
00-4326,00-4329,00-4332,00-4335 and 00-4338
The sample(s) were analyzed with EPA methodology or equivalent methods as specified on the
attached "Analyses Results" report. The symbol for "less than" indicates a value below the
reportable detection limit
The results of these analyses and the quality control data are enclosed.
Ellen Atienza
Operations Manager
Mov 03 00 12:5Gp p. 3
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log #:
11/3/00
10/13/00
10/13/00
10/31/00
November 1,2000
EA
Soil
EPA 8151/8151
Ug/kg
09017-06-01
00-4326, 00-4329 and 00-4332
ANALYSIS
Detection
Limit
Log Number:
Sample ID:
00-4326
Bl-2
00-4329
B2-2
Ellen Atienza
Operations Manager
7^
00-4332
B3-2
2,4,5-T 1.2 O.L. <D.L. <D.L.
2,4, DB 5.0 <D.L. <D.L. <D.L.
2,4, - D 1.1 <D.L. <D.L. <D.L.
4 - Nitrophenol 1.0 <D.L. <D.L. <D.L.
Dalapon 0.5 <D.L. <D.L. <D.L.
Dicamba 0.6 <D,L. <D.L. <D.L.
Dichloroprop 0.8 <D.L. <D.L. <D.L.
Dinoseb l.l <D.L. <D.L. <D.L.
MCPA 200.0 <D.L. <D.L. <D.L.
MCPP 150.0 <D.L. <D.L. <D.L.
Pentachlorophenol 1.0 <D.L. <D.L. <D.L.
Picloram 1.1 <D.L. <D.L. <D.L.
Silvex 1.2 <D.L. <D.L. <D.L.
Mov 03 00 12:5Gp p.4
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Dicgo, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Dicgo, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log #:
11/3/00
10/13/00
10/13/00
10/31/00
November 1,2000
EA
Soil
EPA 8151/8151
}j,g/kg
09017-06-01
00-4335 and 00-4338
ANALYSIS
Detection
Limit
Log Number:
Sample ID:
00-4335
B4-2
2,4,5-T
2,4, DB
2,4, - D
4 - Nitrophenol
Dalapon
Dicamba
Dichloroprop
Dinoseb
MCPA
MCPP
Pentachlorophenol
Picloram
Silvex
1.2
5.0
1.1
1.0
0.5
0.6
0.8
1.1
200.0
150.0
1.0
1.1
1.2
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
Ellen Atienza
Operations Manager
00-4338
B5-2
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
Mov 03 00 12:57p p.5
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SanDiegcCA 92121
(858) 566-4540 FAX (858) 566-4542
QUALITY CONTROL DATA REPORT
Date: 11/3/00
Attn- Mr. Ron Kofron
Log '# 00-4326, 00-4329, 00-4332, 00-4335 and 00-4338
Date Extracted: 10/31/00
Date Analyzed: November 1,2000
Extraction Method: EPA 8151
Analysis Method: EPA 8151
Method Blank
NO TARGET ANALYTES WERE DETECTED IN THE METHOD BLANK.
LABORATORY CONTROL STANDARD ^
COMPOUND % RECOVERY DUP % RECOVERY % RPD
2,4-U I
2,4,5 - TP (SILVEX) 130 HI »
2,4,5-T 118 ^29 9
9TIA1.1TY CONTROL TERMINOLOGY
irs I ABORATORV CONTROL SAMPLE. Reported as % recovery of an independent standard carried through nil
sample preparation procedures to verity method performance. Acceptable range is based on historical laboratory control data
and EPA requirements. Any out-of-conirolQC data is clearly mdicated. •,. •.„ o„..i.-lc
SPIKE- environmental sample is matrix spiked with method compounds and % recovery ot concentrafor, spiked into samp c ,s
cSSed Reported as % recove^,^ Acceptable range for "NoTT>al Matrix Sample" .s based on h>stor>cal laboratory control
data Any oiit-of-control QC data is clearly indicated. o„„„i„, „,H
SURROGATES- Compounds representative ofa group of compounds. Surrogates are spiked into environmental samples and
% recovery of concentration spiked is calculated and reported. Acceplable range vanes depending on sample matrix and
ana!ysi.s method. Any out-of-control QC data is clearly indicated.
Mov 03 00 12:57p P-G
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
SURl^OGATE RECOVERIES
(DCAA)
Log # Percent Recovery:
Method Blank 116%
00-4326 94%
00-4329 78%
00-4332 88%
00-4335 66%
00-4338 88%
LCS 124%
LCS DUP 128%
QC Limits: 50 to 170%
Ellen Atienza
Operations Manager
QUALITY CONTROL TERMINOLOGY
LCS - LABORATORY CONTROL SAMPLE. Reported as % recovery of an independent standai d can ied through all
sample preparation procedures to verily method performance. Acceptable range is based on historical laboratoo' control data
and EPA requirements. Any out-ot-contrcl QC data is clearly indicated.
SPIKE- environmental sample is matrix spiked with method compounds and % recovery of concentration spiked inlo sample is
calculated, Reported as % recovery. Acceptable range for "Normal Matrix Sample" is based on historical laboratory contiol
data. Any out-of-control QC data is clearly indicated.
SURROGA TES- Compounds representative of a group of compounds. Surrogates are spiked into environmental samples and
% recovery of concentration spiked is calculated and reported. Acceptable range varies depending on sample matrix and
analysis method. Any out-of-control QC data is clearly indicated.
2
Mov 03 00 12:57p p.7
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SanDiegcCA 92121
(858)566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log#:
11/3/00
10/13/00
10/13/00
10/27/00
November 1,2000
EA
Soil
EPA 3550/8141
(ig/kg
09017-06-01
00-4326 and 00-4329
ANALYSES RESULTS
Analysis Detection Limit Log Number : 00-4326 00-4329
Sample ID: Bl-2 *DF B2-2 *DF
Azinphos Methyl 5.0 <DL <DL
Bolstar 5.0 <DL <DL
Coumaphos 5.0 <DL <DL
Demeton 5.0 <DL <DL
Diazinon 5.0 <DL <DL
Dichlorvos 5.0 <DL <DL
Disulfoton 5.0 <DL <DL
Dursban (Chlorpyrifos) 5.0 <DL <DL
Ethoprop 5.0 <DL <DL
Fensulfothion 10.0 <DL <DL
Fenthion 5.0 <DL <DL
Gardona (Stirophos) 5.0 <DL <DL
Merphos 5.0 <DL <DL
Methyl Parathion 5.0 <DL <DL
Mevinphos 5.0 <DL <DL
Naled 5.0 <DL <DL
Phorate 5.0 <DL <DL
Ronnel 5.0 <DL <DL
Tokuthion 5.0 <DL <DL
Trichloronate 5.0 <DL <DL
Ellen Atienza c^^
Operations Manager
* D1-- Dilution l-'actor. The delccfion limits and analyses results were coiTected accordingly.
Mov 03 00 12:57p p. a
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SanDiegcCA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diegc CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log#:
Analysis
11/3/00
10/13/00
10/13/00
10/27/00
November 1,2000
EA
Soil
EPA 3550/8141
Hg/kg
09017-06-01
00-4332 and 00-4335
ANALYSES RESULTS
Azinphos Methyl
Bolstar
Coumaphos
Demeton
Diazinon
Dichlorvos
Disulfoton
Dursban (Chlorpyrifos)
Ethoprop
Fensulfothion
Fenthion
Gardona (Stirophos)
Merphos
Methyl Parathion
Mevinphos
Naled
Phorate
Ronnel
Tokuthion
Trichloronate
tion Limit Log Number:
Sample ID:
00-4332
B3-2 *DF
00-4335
B4-2
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
10.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
5.0 <DL <DL
"DF
Ellen Atienza ^Jy^
Operations Manager
* DP- Dilution Factor. Thc detection limits and analyses results were corrected accordingly,
Mov 03 00 12:5ap p.9
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SanDiegcCA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log#:
Analysis
11/3/00
10/13/00
10/13/00
10/27/00
November 1,2000
EA
Soil
EPA 3550/8141
Ug/kg
09017-06-01
00-4338
ANALYSES RESULTS
Azinphos Methyl
Bolstar
Coumaphos
Demeton
Diazinon
Dichlorvos
Disulfoton
Dursban (Chlorpyrifos)
Ethoprop
Fensulfothion
Fenthion
Gardona (Stirophos)
Merphos
Methyl Parathion
Mevinphos
Naled
Phorate
Ronnel
Tokuthion
Trichloronate
tion Limit Log Number: 00-4338
Sample ID: B5-2
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
10.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
5.0 <DL
*DF
Ellen Atienza
Operations Manager
•DF= Dilution Factor. The detection limits and analyses results were corrected accordingly.
Mov 03 00 12:58p p. 10
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SanDiego, CA 92121
(858) 566-4540 FAX (858) 566-4542
Date:
Attn:
Log#:
Date Extracted:
Date Analyzed:
Extraction Method:
Analysis Method:
Method Blank
QUALITY CONTROL DATA REPORT
11/3/00
Mr. Ron Kofron
00-4326, 00-4329, 00-4332,00-4335 and 00-4338
10/27/00
November 1,2000
EPA 8141
EPA 8141
No target
Laboratory Control Sample
analytes were detected in the method blank.
Compound % Recovery DUP % Recovery %RPD
Diazinon 92 117 24
Dursban (Chlorpyrifos) 104 124 18
Gardona (Stirophos) 82 98 18
Methyl Parathion 112 138 21
SURROGATE RECOVERIES
Log#
(Tributylphosphate)
Percent Recovery:
Method Blank
00-4326
00-4329
00-4332
00-4335
00-4338
QC Limits: 50 to 170%
88%
108%
110%
132%
120%
106%
Ellen Atienz^
Operations Manager
QUAUTY CONTROL TERMINOLOGY
LCS - LABORATORY CONTROL SAMPLE, Reported as % recovery of an independent standard carried through all
sample«preparation procedures to verify method performance. Acceptable range is based on historical laboratory conlrol data
and EPA requirements. Any out-of-control QC data is clearly indicated.
Spike- environmental sample is matrix spiked with method compounds and % recovery of concentration spiked into sample is
calculated. Reported as % recover^'. Acceptable range for "Normal Matrix Sample" is based on historical laboratory control
data. Any out-of-control QC data is clearly indicated.
Surrogates- Compounds representative of a group of compounds. Surrogates are spiked into environmental samples and %
recoveo' of concentration spiked is calculated and reported. Acceptable range varies depending on sample matrix and analysis
method. Any out-of-control QC data is clearly indicated.
Page I
Nov 03 00 12:58p p. 1 1
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SanDiegcCA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diegc CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log#:
11/3/00
10/13/00
10/13/00
10/27/00
October 27,2000
EA
Soil
EPA 3550/3620/8081
ktg/kg
09017-06-01
00-4326
Detection
Limit
Log Number:
Sample ID:
00-4326
Bl-2
ANALYSIS
4,4' - DDD 0.5 8.76
4,4' - DDE 2.0 34.5
4,4' - DDT 1.6 30.0
Aldrin 0,2 <DL
Alpha- BHC 0.6 <DL
Beta - BHC 0.6 <UL
Gamma -BHC 0.3 <DL
Delta - BHC 0.6 <DL
Alpha-chlordane 0.5 <DL
Gamma-chlordane 0.5 <DL
Dieldrin 0.3 6.36
Endosulfan 1 0.3 <DL
Endosulfan II 0.5 <DL
Endosulfan Sulfate 0.5 <DL
Endrin 04 <DL
Endrin Aldehyde 0.5 <DL
Endrin Ketone 0.5 <DL
Heptachlor 0.2 <DL
Heptachlor Epoxide 0.3 <DL
Methoxychlor 10 <DL
Toxaphene 25 <DL
'DF
Ellen Atienza
Operations Manager
• DK= Dilution Factor, The detection liinits and analyses results were corrected accordingly.
Mov 03 00 12:5gp p. 12
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diegc CA 92121
(858)566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log#:
11/3/00
10/13/00
10/13/00
10/27/00
October 27,2000
EA
Soil
EPA 3550/3620/8081
^g/kg
09017-06-01
00-4329
Detection
Limit
Log Number:
Sample ID:
00-4329
B2-2
ANALYSIS
4,4' - DDD 0.5 9.6
4,4' - DDE 2.0 30.7
4,4' - DDT 1.6 31.7
Aldrin 0.2 <DL
Alpha- BHC 0.6 <DL
Beta - BHC 0.6 <DL
Gamma - BHC 0.3 <DL
Delta - BHC 0.6 <DL
Alpha-chlordane 0.5 <DL
Gamma-chlordane 0.5 <DL
Dieldrin 0.3 6.37
Endosulfan 1 0.3 <DL
Endosulfan 11 0.5 <DL
Endosulfan Sulfate 0.5 <DL
Endrin 0.4 <DL
Endrin Aldehyde 0.5 <DL
Endrin Ketone 0.5 <DL
Heptachlor 0.2 <DL
Heptachlor Epoxide 0.3 <DL
Methoxychlor 10 <DL
Toxaphene 25 <DL
Ellen Atienza
Operations Manager
* DF= Dilution Factor, The detection limits and analyses results were corrected accordingly.
Mov 03 00 12:59p p. 13
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SanDiegcCA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log #:
11/3/00
10/13/00
10/13/00
10/27/00
October 27,2000
EA
Soil
EPA 3550/3620/8081
tig/kg
09017-06-01
00-4332
Detection
Limit
Log Number:
Sample ID:
00-4332
B3-2
ANALYSIS
4,4' - DDD 0.5 5.3
4,4' - DDE 1.0 24.0
4,4' - DDT 0.8 16.0
Aldrin 0.2 <DL
Alpha- BHC 0.6 <DL
Beta - BHC 0.6 <DL
Gamma - BHC 0.3 <DL
Delta - BHC 0.6 <DL
Alpha-chlordane 0.5 <DL
Gamma-chlordane 0.5 <DL
Dieldrin 3.0 2.38
Endosulfan 1 0.3 <DL
Endosulfan 11 0.5 <DL
Endosulfan Sulfate 0.5 <DL
Endrin 0.4 <DL
Endrin Aldehyde 0.5 <DL
Endrin Ketone 0.5 <DL
Heptachlor 0.2 <DL
Heptachlor Epoxide 0.3 <DL
Methoxychlor 10 <DL
Toxaphene 25 <DL
Ellen Atienza
Operations Manager
• DI-= Dilution Factor, The detection limits and analyses results were corrected accordingly.
Mov 03 00 12:59p p. 14
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SanDiegcCA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
San Diego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log#:
11/3/00
10/13/00
10/13/00
10/27/00
October 27,2000
EA
Soil
EPA 3550/3620/8081
^ig/kg
09017-06-01
00-4335
Detection
Limit
Log Number:
Sample ID:
00-4335
B4-2
ANALYSIS
4,4' - DDD 0.5 3.40
4,4' - DDE 2.0 12.8
4,4' - DDT 1.6 12.3
Aldrin 0.2 <DL
Alpha- BHC 0.6 <DL
Beta - BHC 0.6 <DL
Gamma - BHC 0.3 <DL
Delta - BHC 0.6 <DL
Alpha-chlordane 0.5 <DL
Gamma-chlordane 0.5 <DL
Dieldrin 0.3 2.44
Endosulfan 1 0.3 <DL
Endosulfan 11 0.5 <DL
Endosulfan Sulfate 0.5 <DL
Endrin 0.4 <DL
Endrin Aldehyde 0.5 <DL
Endrin Ketone 0.5 <DL
Heptachlor 0.2 <DL
Heptachlor Epoxide 0.3 <DL
Methoxychlor 10 <DL
Toxaphene 25 <DL
*DF
Ellen Atienza
Operations Manager
* DF- Dilution Factor, The detection limits and analyses resulls were corrected accordingly.
Mov 03 00 12:53p p. 15
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOCON ENVIRONMENTAL CONSULTANTS, INC.
6970 Flanders Drive
SanDiego, CA 92121
Attn: Mr. Ron Kofron
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Method:
Units:
Project Number:
Log#:
11/3/00
10/13/00
10/13/00
10/27/00
October 27,2000
EA
Soil
EPA 3550/3620/8081
09017-06-01
00-4338
Detection
Limit
Log Number:
Sample ID:
00-4338
B5-2
ANALYSIS
4,4' - DDD 0.5 5.0
4,4' - DDE 2.0 28.4
4,4' - DDT 1.6 17.2
Aldrin 0.2 <DL
Alpha- BHC 0.6 <DL
Beta - BHC 0.6 <DL
Gamma - BHC 0.3 <DL
Delta - BHC 0.6 <DL
Alpha-chlordane 0.5 <DL
Gamma-ch 1 ordane 0.5 <DL
Dieldrin 0.3 1.92
Endosulfan 1 0.3 <DL
Endosulfan 11 0.5 <DL
Endosulfan Sulfate 0.5 <DL
Endrin 04 <DL
Endrin Aldehyde 0.5 <DL
Endrin Ketone 0.5 <DL
Heptachlor 0.2 <DL
Heptachlor Epoxide 0.3 <DL
Methoxychlor 10 <DL
Toxaphene 25 <DL
Ellen Atienza /
Operations Manager
* DF= Dilution Factor, The detection limits and analyses results were corrected accordingly.
Mov 03 00 01:00p p. 16
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diegc CA 92121
(858) 566-4540 FAX (858) 566-4542
QUALITY CONTROL DATA REPORT
Date: 11/3/00
Attn: Mr. Ron Kofron
Log #: 00-4326, 00-4329,00-4332, 00-4335 and 00-4338
Date Extracted: 10/27/00
Date Analyzed: October 27,2000
Extraction Method: EPA 3550 / 3620
Analysis Method: EPA 8081
METHOD BLANK
No target analytes were detected in the method blank.
LABORATORY CONTROL STANDARD
Compound % Recovery DUP % Recovery % RPD QC Limits %
G-BHC(Liiidane) 98 100 2 32-127
Heptachlor 109 110 1 34-111
Aldrin 86 88 2 42-122
Dieldrin 77 82 6 36-146
Endrin 99 104 5 30-147
4,4' DDT 86 90 5 25-160
SURROGATE RECOVERIES
(Tetrachloro-M-Xylene)
Log# Percent Recovery:
Method Blank 112%
00-4326 74%
00-4329 79%
00-4332 85%
00-4335 89%
00-4338 85%
LCS 124% -
LCS DUP 125% QC Limits: 43 to 169%
Ellen Atienza
Operations Manager
QUALITY CON TROL TERMINOLOGY
LCS-LABORATORV^CONTROL SAMPLE. Reported as % recovery of an independent standard carried through all sample
preparation procedures to verify method perfomiance. Acceptable range is based on historical laboratory control data and EPA
requirements. Any out-of-control QC data is clearly indicated.
Spike- environmental sample is matrix spiked with metiiod compounds and % recoveo' of concentration spiked into sample is calculated.
Reported as % recovery. Acceptable range for "Normal Matrix Sample" is based on historical laboratory control data. Any out-of-control
QC data is clearly indicated.
Surrogates- Compounds representative of a group of compounds. Surrogates ore spiked into environmental samples and % recovery of
concentration spiked is calculated and reported. Acceptable range varies depending on sample matrix and analysis method. Any out-of-
contrul QC dala is clearly indicated.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SAN DIEGO, CA S»;ili1
(858) 566-4540, FAX (8bB) 566-4542
CUSTOMER INFORMATION
CHAIN OF CUSTODY DATE:/^-t? <X3 PAGE_]__OF 1^
D-TEK LOG #:
- ALL SAMPLES ARE SUBJECT TO TERMS AND CONDITIONS ON REVERSE SIDE Chain ot Cudody Form jl» 2/lW
CO D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
Q- SAN DIEGO. CA 92121 CHAIN OF CUSTODY