HomeMy WebLinkAboutCT 98-18; Carnation Property; Tentative Map (CT) (31)E
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- AGRICULTURAL CHEMICAL RESIDUE SURVEY
| CARNATION PROPERTY, ARM 215-070-08,
CITY OF CARLSBAD, SAN DIEGO COUNTY, CALIFORNIA 92009
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FOR
RYLAND HOMES
I 15373 INNOVATION DRIVE, SUITE 300
SAN DIEGO, CALIFORNIA 92128
• W.O. E2759-SC OCTOBER 11, 1999
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Geotechnical • Geologic • Environmental
5741 Palmer Way • Carlsbad, California 92008 • (760)438-3155 • FAX (760) 931-0915
October 11,1999
W.O. E2759-SC
Ryland Homes
15373 Innovation Drive, Suite 300
San Diego, California 92128
Attention: Mr. Jim McMenamin
Subject: Agricultural Chemical Residue Survey, Carnation Property, APN 215-070-08,
Establishment Number H38425, City of Carlsbad, San Diego County,
California 92009
INTRODUCTION
In accordance with your request and authorization, GeoSoils, Inc. (GSI) is pleased to
submit the following agricultural chemical residue survey on the subject property in the City
of Carlsbad. The purpose of this survey was to evaluate the potential presence of restricted
agricultural residue contamination on the subject site. This survey is submitted to fulfill the
requirement of the City of Carlsbad's Standard Agricultural Area Mitigation Condition (for
agricultural sites). As a part of the mitigation condition, this report should be presented to
the San Diego County Department of Environmental Health Site Assessment (EHS)
Voluntary Assistance Program for review and comment.
The overall area of the subject parcel is 10.1 acres. The land use history of the subject
property has been provided in detail in the Phase I Environmental Site Assessment report
(GSI, 1998b); therefore, only a brief description is provided in the summary below.
SUMMARY
Based upon the information obtained during the course of this study, as well as information
provided in the referenced texts, GeoSoils, Inc. presents the following summary of findings,
conclusions, and recommendations:
• Based upon our field reconnaissance of the property and interviews, as well as
review of readily available historical maps and photographs from 1891 to 1989, the
subject property was developed for agricultural purposes from at least 1967 to the
present. United States Geological Survey (USGS) topographic maps from 1891 and
1898 note no development onsite or in the site vicinity. Greenhouse activity is first
visible on the subject property in 1974.
• Based upon our September 20 and 21,1999 site work, the property is occupied by
an abandoned flower nursery. As noted in the Phase I Environmental Site
Assessment report on the site (GSI, 1998b), structures on the site consist of
dilapidated greenhouses, storage and packing facilities, an office with attached
poison storage room, and what appears to have been temporary living quarters.
Stockpiles of materials were observed on the site, which included construction
materials, demolition waste materials, agricultural waste materials, and earth
materials; however, demolition waste materials (i.e., lumber, plastic sheeting, PVC
piping) and agricultural waste materials (i.e., waste vegetation), previously
stockpiled near the northern site entrance, have been removed. Also observed on
the site were two abandoned vehicles and assorted vehicle parts, two buckets of
what appeared to be waste oil, a trailer mounted spray tank, a flatbed trailer, and
four (4) above-ground tanks. One of the tanks appeared to be an empty fuel tank
that was placed near the south site entrance. There were no signs of surface
discoloration around the tank. Stockpiled empty plastic bags of (fertilizers-dry
grade) potassium nitrate, ammonium nitrate, and calcium nitrate were observed
near three (3) plastic tanks that were utilized to add fertilizers to the irrigation
system. In addition, containers of Dimethoate 2.67 (insecticide) and Daconil 2787
(insecticide) were observed near the irrigation tanks and in the poison storage area
of the main compound. The abandoned vehicles, the waste oil buckets, and the
poison storage area, located in the southeastern portion of the property, are
underlain by a concrete slab. Minor, localized concrete discoloration was
associated with the vehicles. Heavier concrete staining was noted near the waste
oil buckets.
As a part of the referenced Phase IESA (GSI, 1998b), Mr. Bruce Vandemer, CPA for
the nursery operator (Mrs. Victoria Fernandez) was interviewed. In addition, Ms.
Elena Castrellon, Mrs. Fernandez's daughter, was interviewed. Both parties
provided information regarding the agricultural use of the property. This information
included that: the property under the Fernandez ownership had always been used
to grow carnations; in prior years (over four years ago), methyl bromide had been
used on the plants on a regular basis. The chemicals were applied by a contractor
and not stored on the property. The only chemicals stored and used regularly on
the property were fertilizers (ammonium nitrate, potassium nitrate, and calcium
nitrate), which are stored in the above-ground plastic tanks on the site, then applied
to the plants via the site irrigation system. To the best of their knowledge, above
ground or underground fuel storage tanks were never utilized on the subject
property.
A binder containing Material Safety Data Sheets (MSDS) was found in the
abandoned office desk. The binder, compiled by Western Farm Service, Inc.
provided a table of contents (dated 1995) referencing 56 separate agricultural
chemicals (i.e., fertilizers, insecticides, herbicides, and fungicides). The list included
(but was not limited to) Brom-O-Gas, Daconil 2787, Diazinon AG 500, Dimethoate
2.67, Dipel 2X, Dursban T/O, Orthene TT&O, Pentac WP, Roundup, Rozol, Terraclor
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75 WP, and Vydate L. These agricultural chemicals do not appear to be highly
persistent in nature, with half-lives in soil reported to range from one (1) to one
hundred (100)days (Mackey, Shiu, and Ma, 1997) and one (1) day to one hundred
twenty (120) days (Oregon State University, 1996). Brom-O-Gas (i.e., Chloropicrin),
Triforine EC, and Vydate L (i.e., Oxamyl) are Restricted Use Pesticide (RUP), with
an EPAToxicity Classification of I (i.e., highly toxic). Diazinon is also designated as
a RUP; however, it's EPA Toxicity Classification is listed as II or III (moderately to
slightly toxic). General Use Pesticides (i.e., GUP) include Daconil, Dimethoate,
Dithane, Dursban (i.e., Chloropyrifos), Roundup (i.e., Glyphosate), Orthene, Subdue
(i.e., Metalaxyl), and Metaldehyde. GUPs are rated with an EPA Toxicity
Classification II or III (Oregon State University, 1996).
To evaluate the potential for restricted agricultural chemical residues onsite, surficial
soil samples were collected from depths of Vz foot and 11/2 feet within the ten (10)
acres planned for grading. To provide a representative sampling of earth materials
within the subject parcel, a total of twenty (20) samples were collected from ten (10),
one-acre grids. Soil samples collected from a depth of 1/2 foot were tested for
Chlorinated Pesticides and PCB's (EPA test method 8080), Organophosphorous
Pesticides (EPA test method 8140), and Chlorinated Herbicides (EPA test method
8150). Samples collected at a depth of 11/2 feet were tested for Chlorinated
Pesticides and PCB's (EPA test method 8080). Initially, samples from the 1 1/2-foot
depth were archived in the event that relatively high concentrations
Organophosphorous Pesticides and/or Chlorinated Herbicides were detected in the
1/2-foot samples. Sample locations are shown on the enclosed Site Map, Plate 1 .
Test results for Chlorinated Pesticides and PCB's (EPA test method 8080) reported
concentrations of DDT, ODD, DDE (i.e., DDT^, ), Dieldrin, Endosulfan I and II, and
Toxaphene above the laboratory detection limits. No other constituents of the test
suite were detected. Concentrations of DDT/DDD/DDE (i.e., DDT^^) were detected
in all twenty (20) samples collected from the subject property, ranging from 0.0007
mg/kg to 0.99 mg/kg (ARS-1 @ 1/2'). For comparison purposes, regulatory action
levels for hazardous waste criteria (i.e., Total Threshold Limit Concentration - TTLC)
for DDTfTota,) is 1 .0 mg/kg.
Concentrations of Dieldrin (0.0009 mg/kg to 0.0035 mg/kg) were detected in three
(3) of the ten (10) samples collected from the 1/2-foot interval. Concentrations of
Dieldrin (0.0037 mg/kg to 0.01 mg/kg) were detected in two (2) of nine (9) samples
collected from the 11/2-foot interval. Regulatory action levels for hazardous waste
criteria (i.e., TTLC) for Dieldrin is 8.0 mg/kg.
Concentrations of Endosulfan I and II (0.0009 mg/kg to 0.009 mg/kg) were detected
in five (5) of the ten (10) samples collected from the 1/2-foot interval. Endosulfan I
was detected in one (1) of ten (10) samples collected from the 1- and 11/2-foot
interval at a concentration of 0.0017 mg/kg. There appears to be no specific
regulatory action level for hazardous waste criteria (i.e., TTLC) for Endosulfan.
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Concentrations of Toxaphene (0.059 mg/kg to 0.619 mg/kg) were detected in eight
(8) of the ten (10) samples collected from the 1/2-foot interval. Concentrations of
Toxaphene (0.066 mg/kg to 0.361 mg/kg) were detected in five (5) of nine (9)
samples collected from the 11/2-foot interval. In addition, Toxaphene was detected
at a concentration of 0.313 mg/kg in a sample collected at a depth of 1 foot (due to
excavation refusal on hard formation). Regulatory action levels for hazardous waste
criteria (i.e., TTLC) for Toxaphene is 5.0 mg/kg.
GSI has used existing regulatory data as a screening tool for the detected
concentrations of pesticides and other contaminants within the property.
Preliminary Remedial Goals (PRGs), which combine existing USEPA and CALEPA
toxicity values with generally accepted exposure factors to estimate concentrations
in residential soil that do not represent a cancer risk to humans greater than one-in-
one million (i.e., 1 x 10'6), are 1.7 mg/kg for DDT^a,), 0.0028 mg/kg for Dieldrin,
330.0 mg/kg for Endosulfan, and 0.4 mg/kg for Toxaphene. Concentrations of
DDTgota!), Dieldrin, and Endosulfan were also found to be less than the criteria
established as a potential risk to human health (Smucker, 1998). Detected
concentrations of DDT^^ onsite are at least 11/2 times lower than the PRG criteria.
Detected concentrations of Dieldrin and Endosulfan onsite are at least 2Va times and
over 100 times lower than the PRG criteria, respectively. Detected concentrations
of Toxaphene in 95 percent of the samples collected onsite are lower than the PRG
criteria. Other than the above, no detectable levels of other potentially hazardous
agricultural pesticides were reported in soil samples collected within the subject
property. Data collected indicate that concentrations of pesticides detected
generally decrease with depth. All chemical laboratory test results are presented
in Appendix B.
Laboratory testing indicated no detectable concentrations from the
Organophosphorous Pesticides (EPA test method 8140) suite.
Laboratory analyzes found concentrations of 2,4,DB in three (3) samples (0.0089
mg/kg to 0.013 mg/kg) and Pentachlorophenol in three (3) samples (0.0016 mg/kg
to 00.0061 mg/kg) tested in the Chlorinated Herbicides (EPA test method 8150)
suite. The PRG level for 2,4,DB is 440.0 mg/kg and 2.5 mg/kg for
Pentachlorophenol. Detected concentrations of 2,4,DB and Pentachlorophenol
onsite are over 100 times lower than the PRG criteria. No other constituents of this
suite of tests were detected in soil samples collected onsite.
To evaluate the potential for petroleum contamination within the subject property,
five (5) soil samples were collected from the driveway/traffic areas of the property.
Samples collected from a depth of 0 to 1 foot were tested for Total Recoverable
Petroleum Hydrocarbons-TRPH (EPA test method 418.1). Two (2) of the samples
were also tested for Semi-Volatile Organic Compounds (EPA test method 8270).
Detected concentrations of TRPH were reported to range from less than 10.0 mg/kg
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to 12.1 mg/kg. Based upon the laboratory test results, no remedial earthwork is
recommended.
Except for bis (2-Ethylhexyl) phthalate detected in one sample (DS-5), there were
no detectable concentrations of constituents in the Semi-Volatile Organic
Compound test suite (EPA test method 8270) reported. Phthalate are plasticizers
which are used to soften plastic. Bis (2-Ethylhexyl) phthalate is often associated
with plastic sampling equipment and/or plastic containers, and is commonly a
laboratory contaminant. Review of laboratory test results as a whole do not suggest
any other related contaminants. It is GSI's opinion, therefore, that since Phthalates
are not typical working chemicals in the flower nursery industry, and since this
sample was collected outside the working area of the flower nursery (i.e., near the
southwestern site boundary with a public street), the sample concentration is not
representative of onsite conditions. Sample locations are shown on the enclosed
Site Map, Plate 1.
• Laboratory testing for Total Lead (EPA test method 6010) was also completed. Two
(2) samples from the driveway/traffic areas and seven (7) samples from within the
greenhouses were analyzed. Concentrations were reported to range from 19.6
mg/kg to 33.9 mg/kg. The TTLC level for Lead is 1,000 mg/kg. The PRG criteria for
Lead (Cal-Modified PRG) is 130 mg/kg. Based upon the test data, no remedial
earthwork is recommended.
• The regulatory action levels for hazardous waste criteria (TTLC), the Preliminary
Remediation Goals (PRGs) for chemical residues (detected and non-detected
onsite), and the chemical laboratory detection limits (presented in Appendix B) were
compared. In summary, detection limits utilized by the testing laboratory were
overall at least equal to the PRG levels for all constituents, with the majority at least
4 times below the PRG levels. It should be noted that PRG levels were not available
for all analytes tested; however, based upon the majority of readily available
regulatory limits, it appears likely that detection limits utilized by the laboratory are
suitable for this evaluation.
Based upon comparison of regulatory site screening values (i.e., Preliminary
Remedial Goals), it appears that remedial measures are required to mitigate certain
residue concentrations of DDT^,) and concentrations of Toxaphene detected
within the property.
• Surface signs of water wells were not observed onsite during our site
reconnaissance. State of California regional groundwater maps from 1967 indicate
that no permitted water wells exist within the site. In addition, the Ground Water Site
Inventory (GWSI) database (dated March, 1998) by the United States Geological
Society (USGS) noted no water wells within a mile radius of the subject property.
Data provided in in-house geotechnical reports on properties located in the area
indicate that groundwater was not encountered within 25 feet of the pre-
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development surfaces. Based upon our experience in the project area, beneficial
use groundwater is not anticipated to be encountered within a depth of 50 feet.
"Perched" groundwater, where relatively impermeable fill and/or sediments underlie
relatively permeable fill and/or sediments filled with water may be encountered at
shallower depths onsite, especially during the rainy season.
Based upon the characteristic immobility of pesticides, the overall density of terrace
deposits and bedrock underlying the subject property, as well as the estimated
depth to beneficial use groundwater (i.e., greater than 50 feet), the likelihood is low
that pesticide residues detected in the upper 1 1/2 feet of earth materials within the
subject site have affected groundwater.
Based upon the scope of work completed, GSI concludes that the concentrations of the
majority of potentially hazardous agricultural chemicals detected in earth materials on the
subject property are sufficiently below Preliminary Remedial Goals (PRGs) so as not to
represent a risk to human health. For the majority of reported concentrations, remedial
earthwork is not recommended or required. Remedial earthwork is recommended,
however, to mitigate two (2), one-acre grid areas with reported concentrations of DDT^,^,
and Toxaphene above Preliminary Remedial Goals (PRGs), which potentially represent a
risk to human health. GSI's recommendation for burial of affected soils are to significantly
limit the overall impact chemical residues of the buried soils have on surface waters,
groundwater(s), and/or human health, both on the subject property and the immediate
area. Based upon the information obtained during the course of the assessment, GSI
presents the following recommendations:
Surficial soils with concentrations of DDTf,^ and Toxaphene greater than the
Preliminary Remedial Goal criteria should not be placed within ten (10) feet of finish
pad grade(s) within five (5) feet of street subgrade to mitigate the potential for
human contact. Soils requiring remediation should not be placed in canyon
bottoms or below subdrains, where there is potential contact with perched
groundwater. Affected soils should be buried within the property boundary only,
and placed so as not to adversely affect surface water.
Based upon existing test data, remedial measures are needed to locally mitigate
some residue concentrations of DDT^^ and Toxaphene detected within the
property. Based upon existing data, GSI estimates that the upper one (1) foot of
soils from two (2) one-acre grids (i.e., two acres) onsite should require remediation.
Specifically, remedial earthwork is recommended in the area covering all or a
portion of Lots 14 through 23 (See Plate 1). The estimated quantity of soils
requiring remediation is on the order of 3,225 cubic yards (yds3). Remediation
measures may include excavation and stockpile for use as backfill in paved street
areas at a depth of at least five (5) feet, or excavation and disposal offsite. GSI
recommends that this office, or other licenced environmental professional
consultant, observed the remedial earthwork within the property boundary.
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• Review of the Site Map (Plate 1) indicates that there are 54,000 ± square feet of
paved street proposed within "A," "B," and "C" Streets. Considering a burial depth
of at least five (5) feet, the depth of remedial earthwork is estimated to be on the
order of seven (7) feet below finish grade. Calculations indicate that there is
sufficient area within the site boundary to bury all affected soil within asphalt-paved
streets.
• Due to the large amount of structures and associated debris from dilapidated
greenhouses scattered within the property, pre-demolition and demolition
operations should be monitored by a representative of this office. Storage
containers with petroleum products and agricultural chemicals should be removed
from the site and disposed of following regulatory guidelines.
• Removals and burial should be monitored by a representative of this office.
Sampling should be conducted at a minimum of two (2) locations during grading
(after removal of the affected earth materials onsite) to verify that all affected earth
materials have been removed and buried. The specific areas of verification
sampling for each tract are provided above and in the Recommendations section
of this report. If detectable concentrations of restricted pesticides are encountered
above the PRG criteria, additional removal would occur until earth materials with
concentrations lower than PRG criteria are encountered.
• Removal of the concrete slabs in the handling and storage compound areas should
also be observed by a representative of this office, to evaluate if petroleum staining
detected on the surface has leeched through to the subgrade. Dependant upon
actual field conditions, sampling may be conducted after removal of the concrete
to evaluate discoloration (if any) that may affect the underlying earth materials.
Stained concrete should be property disposed of offsite, following proper disposal
guidelines.
• Based upon the information collected by GSI during this survey, further studies or
action, other than the above, are not proposed from an environmental viewpoint, at
this time.
This investigation does not address or evaluate the potential for pesticide residue
contamination on any of the surrounding properties which have been historically utilized
for agricultural purposes during the same period. The conclusions and recommendations
provided in this report are based upon current regulatory guidelines for pesticide
contaminated soils due to legal application. Due to the dynamic nature of environmental
issues concerning the land use changes, there is some potential for future regulatory
requirements to be enacted that may affect the property.
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If you have any questions pertaining to this report or we may be of further service, please
do not hesitate to contact this office. We appreciate the opportunity to be of service to you.
Respectfully submitted,
GeoSoils, Inc.Reviewed by:
Edward P. Lump
Director of Environmental Se
REA-1 2565, RG 5795, CEG
David W. Skelly
Civil Engineer, RCE
)hn P. Franklin
lanager, REA-1 1675, CEG 1341
EPL/DWS/JPF/mo
Distribution: (3) Addressee
(1) Department of EnvironrrrentaflHealth, Attention: Mr. Nasser Sionit, Ph.D.
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TABLE OF CONTENTS
INTRODUCTION 1
Purpose and Scope 1
Limitations and Exceptions 1
Terms and Conditions 1
SITE DESCRIPTION AND RECONNAISSANCE OBSERVATIONS 3
Site/Project Description 3
Proposed Development 4
Hydrogeology 4
Summary of Discussions With Persons Familiar With Site 4
Material Safety Data Sheets 5
SCOPE OF WORK - AGRICULTURAL CHEMICAL RESIDUE SURVEY 6
Preliminary Chemical Test Results 7
CONCLUSIONS AND RECOMMENDATIONS 12
Conclusions 12
Recommendations 15
LIMITATIONS 17
FIGURES:
Figure 1 - Site Location Map 2
ATTACHMENTS:
Appendix A - References Rear of Text
Appendix B - Laboratory Data Rear of Text
Plate 1 - Sample Location Map Rear of Text in Pocket
GeoSoils, Inc.
AGRICULTURAL CHEMICAL RESIDUE SURVEY
CARNATION PROPERTY, APN 215-070-08, ESIABL/SHMENT NUMBER H38425
CITY OF CARLSBAD, SAN DIEGO COUNTY, CALIFORNIA 92009
INTRODUCTION
Purpose and Scope
In accordance with our proposal and Client's (Ryland Homes) authorization, GeoSoils, Inc.
(GSI) is pleased to submit this agricultural chemical residue survey covering the subject
property, the location of which is illustrated in Figure 1. The purpose of this study was to
evaluate the potential presence of restricted agricultural chemical residues in soils on the
subject site from the permitted application of pesticides and/or herbicides historically to
crops.
The scope of work included:
1. A review of the subject property's geologic, hydrogeologic, and environmental
setting (Appendix A);
2. Completion of an agricultural chemical residue survey on the subject property
(Laboratory Data - Appendix B); and,
3. Preparation of this report which relates the findings of these studies and presents
GSI's conclusions and recommendations.
Limitations and Exceptions
This study does not include any of the following:
• Subsurface geotechnical evaluation of the subject property (GSI, 1998b);
• Groundwater sampling and analyses; and,
• Consideration of possible future contamination of the subject property from
adjacent or surrounding facilities or properties.
Terms and Conditions
This report is intended for the use of the Client (Ryland Homes). The contents should not
be relied upon by any party other than the aforementioned without the express written
consent of GSI. Exceptions to this include the San Diego County Department of
Environmental Health - Site Assessment Division (who will provide voluntary review of this
report) and the City of Carlsbad (who requires this survey as a Standard Agricultural Area
Mitigation Condition for agricultural sites).
GeoSoils, Inc.
Base Map: Encinitas Quadrangle, California—San Diego Co., 7.5 Minute Series (Topographic),
1968 (photo revised 1975), by USGS, 1"r2000'
sS»4lf£«*^
Base Map: The Thomas Guide, San Diego County Street Guide and Directory, 1998 Edition, by
Thomas Bros. Maps, page 1127, 1"=1/2 mile
R«produo«d with permission granted by thoma* Bros. Map*.Thia map la eopyrlghtotf by Thomaa Broa. Miipa. H ta unlawfulto copy or raproduc* aM or any part thereof, wtwttwr Wparaonal uaa or raaato, without parmiaaion. AM rlghta raaarved.W.O.
E2759-SC
SITE LOCATION MAP
Figure 1
This report does not consider possible future contamination of the subject property from
adjacent or surrounding facilities or properties. All judgements concerning adjoining
properties apply only to conditions observed during the time of the on-site reconnaissance.
SITE DESCRIPTION AND RECONNAISSANCE OBSERVATIONS
Site/Project Description
The 10-acre property is located in the southern area of Carlsbad, west of El Camino Real
(S-11), south of Palomar Airport Road (S-12), and east of the San Diego Freeway (I-5).
Access to the site, located north of the Aviara development, is via Black Rail Road off Alga
Road (Figure 1). Black Rail Road, which comprises the eastern property boundary, is
recently improved. A chain-link fence surrounds the property, with two (2) entrances
along the eastern edge.
The property is currently occupied by an abandoned flower nursery. As noted in the Phase
I Environmental Site Assessment report on the site (GSI, 1998b), structures on the site
consist of dilapidated greenhouses, storage and packing facilities, an office with attached
poison storage room, and what appear to have been temporary living quarters. Stockpiles
of materials were observed on the site, which included construction materials, demolition
waste materials, agricultural waste materials, and earth materials; however, demolition
waste materials (i.e., lumber, plastic sheeting, PVC piping) and agricultural waste materials
(i.e., waste vegetation), previously stockpiled near the northern site entrance, have been
removed.
Also observed on the site were two (2) abandoned vehicles and assorted vehicle parts, two
(2) buckets of what appeared to be waste oil, a trailer mounted spray tank, a flatbed trailer,
and four (4) above-ground tanks. One of the tanks (an empty fuel tank ?), appeared to
have been placed near the south site entrance. There were no signs of surface
discoloration around the tank, and there were no obvious signs holes.
Stockpiled empty plastic bags of (fertilizers-dry grade) potassium nitrate, ammonium
nitrate, and calcium nitrate were observed near three (3) plastic tanks that appeared to be
used to add fertilizers to the irrigation system. In addition, empty containers of Dimethoate
2.67 (insecticide) were observed near the irrigation tanks in the northerly area of the main
compound. Containers of Daconil 2787 (insecticide) were observed within the poison
storage area of the main compound building. The abandoned vehicles, the waste oil
buckets, and the poison storage area, located in the southeastern portion of the property,
are underlain by a concrete slab. Minor, localized concrete discoloration was associated
with the vehicles. Heavier concrete staining was noted near the waste oil buckets.
Ryland Homes W.O. E2759-SC
Carnation Property October 11,1999
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Proposed Development
Based upon the tentative tract map (by Hunsaker & Associates, Inc.) of the Carnation
Property, the proposed development consists of thirty two(32) single-family residential lots
and interior roadways "A," "B," and "C" Streets. It is our understanding that typical cut and
fill grading is proposed to generate the planned property on only 10 acres of the site. City
of Carlsbad municipal utilities are proposed.
Hvdrogeology
The property lies within the Bataquitos Hydrologic Subarea (HSA 904.51) of the San
Marcos Hydrologic Area (HA 904.50) of the Carlsbad Hydrologic Unit (HU 904.00) within
the San Diego Region (State RWQCB, 1994). Carlsbad falls within Region 9 (San Diego)
of the State Regional Water Quality Control Board (RWQCB). Existing beneficial uses of
groundwater within this HSA are municipal and domestic supply, agricultural supply, and
industrial service supply. Overall, the local groundwater flow appears be in a westerly
direction.
Surface signs of water wells were not observed onsite during our site reconnaissance.
Regional groundwater maps (State of California, 1967) indicate no permitted water wells
exist within the site. In addition, the Ground Water Site Inventory (GWSI) database (dated
March, 1998) by the United States Geological Society (USGS) reported no water wells
within a mile radius of the subject property. Data provided in in-house geotechnical reports
on properties located in the area indicate that overall, groundwater was not encountered
within 25 feet of the pre-development surfaces. Based upon our experience in the project
area, beneficial use groundwater is not anticipated to be encountered within a depth of 50
feet. "Perched" groundwater, where relatively impermeable fill and/or sediments underlie
relatively permeable fill and/or sediments filled with water may be encountered at shallower
depths onsite, especially during the rainy season. There was no surface water observed
within the property boundary, or in the immediate vicinity. Groundwater was not
encountered in any of the geotechnical test pits excavated on the site (GSI, 1998a).
Summary of Discussions With Persons Familiar With Site
As a part of the previous Phase I ESA (GSI, 1998b), Mr. Bruce Vandemer (CPA for the
nursery operator, Mrs. Victoria Fernandez) was interviewed by telephone. Mr. Vandemer
indicated that Mrs. Fernandez had owned the property since 1979. The property under the
Fernandez ownership had always been used for agricultural purposes to grow flowers;
and, to the best of his knowledge, the property had only been used for agricultural
purposes prior to the Fernandez ownership. Mr. Vandemer was not aware of the
agricultural chemicals that were used on the site, but did know that above-ground storage
tanks existed on the site and that one had recently been relocated on the site. Mr.
Vandemer stated that Mrs. Fernandez was not available for interview, but her daughter
could be contacted.
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Carnation Property October 11,1999
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Ms. Elena Castrellon, Mrs. Fernandez's daughter, was also previously interviewed (GSI,
1998b). Ms. Castrellon confirmed that the property has always been used under her
family's ownership for the growth of carnation flowers. She stated that in prior years (over
four years ago), methyl bromide had been used on the plants. A contractor was hired
periodically (about every four to five years) to spray the plants. Mrs. Castrellon indicated
that the methyl bromide was never stored on the property - the contractor brought the
chemicals onto the property at the time of application.
Mrs. Castrellon noted that the only chemicals stored and used regularly on the property
were fertilizers (ammonium nitrate, potassium nitrate, and calcium nitrate). These
chemicals are stored in the above-ground storage tanks on the site, then applied to the
plants via the site sprinkler system.
Material Safety Data Sheets
A binder containing Material Safety Data Sheets (MSDS) was found in the office of the
nursery. The binder, compiled by Western Farm Service, Inc. provided a table of contents
(dated 1995) for 56 separate agricultural chemicals (i.e., fertilizers, insecticides, herbicides,
and fungicides). The list included (but was not limited to) Brom-O-Gas, Daconil 2787,
Diazinon AG 500, Dimethoate 2.67, Dipel 2X, Dursban T/O, Orthene TT&O, Pentac WP,
Roundup, Rozol, Terraclor 75 WP, and Vydate L. These agricultural chemicals do not
appear to be highly persistent in nature, with half-lives in soil reported to range from one
(1) to one hundred (100) days (Mackey, Shiu, and Ma, 1997).
The United States Environmental Protection Agency (USEPA), in cooperation with Oregon
State University, provides information on pesticides via the National Pesticide
Telecommunication Network (NPTN). Specifically, the Extension Toxicology Network
(EXTOXNET) database provides pertinent information about pesticides (i.e., pesticide
profiles), including regulatory status, toxicological effects, ecological effects, environmental
fate, physical properties, and exposure guidelines. Based upon the information, these
agricultural chemicals listed in the binder are either General Use Pesticides (GUP) or
Restricted Use Pesticides (RUP). This classification appears to be based upon toxicity,
which ranges from EPA Class I (highly toxic) to EPA Class IV (practically nontoxic). Brom-
O-Gas (i.e., Chloropicrin), Triforine EC, and Vydate L (i.e., Oxamyl) are Restricted Use
Pesticide (RUP), with an EPA Toxicity Classification of I (i.e., highly toxic). Diazinon is also
designated as a RUP; however, it's EPA Toxicity Classification is listed as II or III
(moderately to slightly toxic). General Use Pesticides (i.e., GUP) include Daconil,
Dimethoate, Dithane, Dursban (i.e., Chloropyrifos), Roundup (i.e., Glyphosate), Orthene,
Subdue (i.e., Metalaxyl), and Metaldehyde. GUPs are rated with EPA Toxicity Classification
II or III (Oregon State University, 1996). The reported Half-Life of these chemicals, which
are listed slighlty to moderately persistent in nature, range from one (1) day to one hundred
twenty (120) days (Oregon State University, 1996).
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SCOPE OF WORK - AGRICULTURAL CHEMICAL RESIDUE SURVEY
The restricted agricultural chemical residue survey consisted of twenty (20) soil samples
collected from existing earth materials onsite. Due to the recently active nature of
agricultural activities onsite, as well as the existence of chemical storage areas and
abandoned equipment, five (5) additional soil samples were collected from vehicle
passage areas (i.e., driveways) within the main compound and within the most recently
active greenhouses. It should be noted that the poison storage area and equipment
repair/storage areas are underlain by a concrete slab; therefore, samples were not
collected directly from these areas.
Overall, the ten (10) acres of property proposed for development was divided into a one-
acre grid pattern, with two (2) samples collected within each grid. Soil samples were
collected from a depth of Vz foot and 11/2 feet at a random location within each grid. Soils
samples from vehicle passage ways within the compound and greenhouses were collected
at a depth of 0 to 1 foot. Holes were excavated using a small diameter, stainless steel
hand auger. Samples were collected by a licenced geologist on September 20 and 21,
1999, properly stored and transported to a California Department of Health Services (DHS)
certified laboratory the same day, following proper procedures. A Chain-of-Custody record
was recorded within the laboratory.
Based upon a list of 18 Hazardous Agricultural Substances generated by the San Diego
County Department of Environmental Health Services (EHS), chemical testing included the
following substances:
• Soil samples tested for Chlorinated Pesticides and RGB's, utilizing EPA test method
8080.
• Soil samples tested for Organophosphorous Pesticides, utilizing EPA test method
8140.
• Soil samples tested for Chlorinated Herbicides, utilizing EPA test method 8150.
• Soil samples tested for Total Recoverable Petroleum Hydrocarbons, utilizing EPA
test method 418.1.
• Soil samples tested for Total Lead compounds utilizing EPA test method 6010.
• Soil samples tested for Semi-Volatile Organic Compounds utilizing EPA test method
8270.
Based upon our experience with similar farmlands in Carlsbad, the majority of
contaminants detected fall within the Chlorinated Pesticides suite (EPA test method 8080).
This suite of contaminants are known for their persistence in nature, and include pesticides
such as DDT, Dieldrin, and Toxaphene. Since the County of San Diego EHS does not
recognize test results from composite samples, the chemical laboratory conducted discrete
chemical analysis of the samples.
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Initially, GSI requested the chemical laboratory to test all samples collected from the 1/2-foot
interval individually for the three agricultural chemical suites of tests presented above (i.e.,
EPA 8080, 81 40, & 81 50). Samples collected from the 1 1/2-foot interval would be tested for
contaminants by EPA test method 8080 only. These samples were archived for additional
discrete testing in the event the 1/2-foot interval samples detect concentrations of
contaminants from the other two suites of test methods (i.e., EPA test methods 8140 and
8150). This testing format typically allows for detection of individual contaminants,
eliminating needless repetition. Testing of select samples collected from the equipment
passage areas consisted of Total Recoverable Petroleum Hydrocarbons (TRPH), Total
Lead compounds, and Semi-Volatile Organic Compounds. Select samples collected from
within the greenhouses were also tested for Total Lead.
Holes were excavated using a four (4) inch diameter hand auger. The stainless steel hand
auger was washed in a tri-sodium phosphate (TSP) solution and rinsed with clear water.
The auger was final rinsed with distilled water prior to each test hole. Soils encountered
in our holes consisted of dry to slightly moist, loose to dense, red brown to brown silty
sands and clayey sands. At a depth of 1 to 11/2 feet, medium dense to dense and well
cemented terrace deposits were encountered in the sample test excavations onsite.
Samples were collected, stored and transported to a California Department of Health
Services (DHS) certified laboratory the same day, following proper procedures. A Chain-
of-Custody document, recorded with the laboratory, is included in Appendix B.
Preliminary Chemical Test Results
Based upon the laboratory test results, concentrations of DDT/DDD/DDE (i.e., DDT^^)
were detected in all twenty (20) samples collected from the subject property, ranging from
0.0007 milligrams per kilogram (mg/kg) to 0.99 mg/kg. For comparison purposes,
regulatory action levels for hazardous waste criteria (i.e., TTLC) for DDT^^ is 1 .0 mg/kg.
Concentrations of Toxaphene (0.059 mg/kg to 0.619 mg/kg) were detected in eight (8) of
the ten (10) samples collected from the 1/2-foot interval. Concentrations of Toxaphene
(0.066 mg/kg to 0.361 mg/kg) were detected in five (5) of the nine (9) samples collected
from the 1 1/2-foot interval. In addition, Toxaphene was detected at a concentration of 0.31 3
mg/kg in a sample collected at a depth of 1 foot, due to excavation refusal on hard
sandstone formation. Regulatory action levels for hazardous waste criteria (i.e., TTLC) for
Toxaphene is 5.0 mg/kg.
Concentrations of Dieldrin (0.0009 mg/kg to 0.0035 mg/kg) were detected in three (3) of
the ten (1 0) samples collected from the 1/2-foot interval. Concentrations of Dieldrin (0.0037
mg/kg to 0.01 mg/kg) were detected in two (2) of the ten (10) samples collected from the
1 to 11/2-foot interval. Regulatory action levels for hazardous waste criteria (i.e., TTLC) for
Dieldrin is 8.0 mg/kg.
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Concentrations of Endosulfan I and II (0.0009 mg/kg to 0.009 mg/kg) were detected in five
(5) of the ten (10) samples collected from the 1/2-foot interval. Endosulfan I was detected
in one (1) often (10) samples collected from the 1 and 11/2-foot interval at a concentration
of 0.0017 mg/kg. There appears to be no specific regulatory action level for hazardous
waste criteria (i.e., TTLC) for Endosulfan.
Provided below (Table 1) are test results, as well as criteria limits for the preliminary
estimate of risk to human health (i.e., Preliminary Remedial Goals). Test results are
provided in Appendix B.
TABLE 1
SUMMARY OF CHEMICAL TEST RESULTS
EPA TEST METHOD 8080
SAMPLE
LOCATION
ARS-1 @ Vi'
ARS-1 @1V2'
ARS-2 @ 1/2'
ARS-2@11/2'
ARS-3 @ Vi'
ARS-3@1'
ARS-4 @ 1/2'
ARS-4@1V2'
ARS-5 @ V*
ARS-5@11/2'
ARS-6 @ 1/2'
ARS-6@1</2'
ARS-7 @ y2'
ARS-7@1V2'
ARS-8 @ V*
ARS-8 @ 1 Vi
ARS-9 @ 1/2'
ARS-9@1'/2'
ARS-1 0@'/2'
TOXAPHENE(iti»*g5
0.619
0.188
0.361
0.361
0.163
0.313
0.168
0.117
0.201
<DL
<DL
<DL
0.059
0.066
0.208
<DL
0.233
0.185
<DL
PRO"*(mg/kg)
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
0.40
fr8?Il)
(mg/fcg)
0.99
0.122
0.275
0.234
0.11
0.174
0.115
0.099
0.216
0.0061
0.0048
0.00081
0.12
0.054
0.213
0.0058
0.166
0.193
0.0038
&9*9)
1.7/2.4
1.7/2.4
1.7/2.4
1 .7/2.4
1 .7/2.4
1 .7/2.4
1.7/2.4
1.7/2.4
1.7/2.4
1.7/2.4
1.7/2.4
1 .7/2.4
1.7/2.4
1 .7/2.4
1.7/2.4
1 .7/2.4
1.7/2.4
1.7/2.4
1.7/2.4
£NWAN
(ing/kg)
0.0014
<DL
0.0013
0.0017
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.0048
<DL
0.0011 & 0.009
<DL
0.0009 &
0.0087
<DL
<DL
Pfl<3«>
(mg/kg)
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
330.0
DIELDRIN
(mg/kg*
<DL
<DL
<DL
<DL
<DL
<DL
0.0035
0.0037
0.0047
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.0009
0.01
<DL
PR6<*>
(mg/Kfl)
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
0.028
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SAMPLE
LOCATION
ARS-10@11/2'
TOXAPHENE(mg/kgj
<DL
PRG «>
(ing/Kg)
0.40
(r8?AL)
{mg/kg)
0.0007
bRQW
(mg/kg)
1 .7/2.4
"WBM"1
(mg/kg)
<DL
PRG (q)
(mg/kg)
330.0
DIELDRIN
(mg/kg)
<DL
PRO w
(mg/ttg)
0.028
PRG(1) - Preliminary Remedial Goals - Toxaphene (Smucker, 1998)
PRG (2) - Preliminary Remedial Goals - DDT/DDE/DDD (Smucker, 1998)
PRG (3) - Preliminary Remedial Goals - Endosulfan (Smucker, 1998)
PRG (4) - Preliminary Remedial Goals - Dieldrin (Smucker, 1998)
<DL - Less Than Laboratory Detection Limits
Laboratory test results were reported as "less than detection limits" for Organophosphorus
Pesticides (EPA test method 8140). A summary of test results are provided in Table 2
below. Test results are provided in Appendix B.
TABLE 2
SUMMARY OF CHEMICAL TEST RESULTS
EPA TEST METHODS 8140
SAMPLE
LOCATION
ARS-1 @ Vz'
ARS-2 @ Vz'
ARS-3 @ Vz
ARS-4 @ Vz
ARS-5 @ Vz
ARS-6 @ Vz
ARS-7 @ Vz
ARS-8 @ Vz
ARS-9 @ Vz
ARS-1 0@Vz
ORGANOPHOSPHORUS
PESTICIDES
(mg/kg)
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL - Less Than Laboratory Detection Limits
Laboratory analyzes reported concentrations of 2.4.DB in three (3) samples (0.0089 mg/kg
to 0.013 mg/kg) and Pentachlorophenol in three (3) samples (0.0016 mg/kg to 00.0061
mg/kg) tested in the Chlorinated Herbicides (EPA test method 8150) suite. The PRG level
for 2,4,DB is 440.0 mg/kg and 2.5 mg/kg for Pentachlorophenol. Detected concentrations
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of 2,4,DB and Pentachlorophenol onsite are over 100 times lower than the PRG criteria. No
other constituents of this suite of test were detected in soil samples collected onsite. A
summary of test results are provided in Table 3 below. Test results are provided in
Appendix B.
Of the ten (10) samples collected from the 1/2-foot interval, seven (7) samples from within
the greenhouses were analyzed for Total Lead (EPA test method 6010). Concentrations
were reported to range from 19.6 mg/kg to 33.9 mg/kg. For comparison purposes, the
TTLC level for Lead is 1,000 mg/kg. The PRG level for Lead (Cal-Modified PRG) is 130
mg/kg.
TABLE 3
SUMMARY OF CHEMICAL TEST RESULTS
EPA TEST METHODS 8150 and TOTAL LEAD
SAMPLE
LOCATION
ARS-1 @ Vz'
ARS-2 @ Vz'
ARS-3 @ Vz
ARS-4 @ 1/2'
ARS-5 @ Vz
ARS-6 @ Vz'
ARS-7 @ Vz
ARS-8 @ Vz
ARS-9 @ Vz
ARS-1 0@Vz
P6NTACHUORGPH6NOL
(rng/kg)
0.0016
0.0061
<DL
0.002
<DL
<DL
<DL
<DL
<DL
<DL
PRG »>
(mg/kg)
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2,4, DB
{mg/kg)
<DL
0.013
<DL
0.0095
0.0089
<DL
<DL
<DL
<DL
<DL
PRQP)
(mg/kg)
440.0
440.0
440.0
440.0
440.0
440.0
440.0
440.0
440.0
440.0
TOTAL
LEAD
(mg/kg)
26.0
25.7
NT'3'
NT
19.6
24.7
31.5
33.3
NT
33.9
PRG(1) - Preliminary Remedial Goals - Pentachlorophenol (Smucker, 1998)
PRG (2) - Preliminary Remedial Goals - 2,4, DB (Smucker, 1998)
<DL - Less Than Laboratory Detection Limits
NT(3)-Not Tested
To evaluate the potential for petroleum contamination within the subject property, five (5)
soil samples were collected from the driveway/traffic areas of the property. Samples,
collected from a depth of 0 to 1 foot were tested for Total Recoverable Petroleum
Hydrocarbons-TRPH (EPA test method 418.1). Two (2) of the samples were also tested
for Semi-Volatile Organic Compounds (EPA test method 8270).
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Detected concentrations of TRPH were reported to range from less than 10.0 mg/kg to 12.1
mg/kg. Based upon the laboratory test results, no remedial earthwork is needed. Except
for bis (2-Ethylhexyl) phthalate, detected in one sample, there were no detectable
concentrations of Semi-Volatile Organic Compounds reported. It is our understanding that
phthalates are a fairly common laboratory contaminant. Phthalates are typically used as
a plasticizer, which is not characteristic of flower operations. It is GSI's opinion that since
this sample was collected outside the working area of the flower nursery and located near
the southwestern site boundary with a public street, the sample concentrations is not
representative of onsite conditions. Sample locations are shown on the enclosed Site Map,
Plate 1.
Laboratory testing for Total Lead (EPA test method 6010) was also completed. Two (2)
samples from the driveway/traffic areas were analyzed. Concentrations were reported to
be 27.0 mg/kg and 30.0 mg/kg. The TTLC level for Lead is 1,000 mg/kg. The PRG level for
Lead (Cal-Modified PRG) is 130 mg/kg. A summary of test results are provided in Table
4 below. Test results are provided in Appendix B.
TABLE 4
SUMMARY OF CHEMICAL TEST RESULTS
EPA TEST METHOD 8270. TRPH. and TOTAL LEAD
SAMPLE
LOCATION
DS-1 @ 1/2'
DS-2 @ 1/2'
DS-3 @ Vz
DS-4 @ 1/2'
DS-5 @ Vz'
EPA TEST METHOD 8270
(mg/kg}
NT(2)
NT(2)
<DL'1'
NT(2)
<DL
TRPH
{mg/kg)
<10.0
10.0
12.1
<10.0
<10.0
TOTAL
LEAD
{mg/kg}
NT<2'
NT"2'
27.0
NT(2)
30.0
<DL - Less Than Laboratory Detection Limits
<DL(1) - Except bis (2-Ethylhexyl) phthalate at a concentration of 225.0 mg/kg
NT(2)-Not Tested
By rule of thumb, if the TTLC regulatory level is exceeded on a substance, a CCR
(California Code of Regulations) WET (Waste Extraction Test) extraction should be
conducted to evaluate the Soluble Threshold Limit Concentration (STLC). If the regulatory
level for STLC of a substance is exceeded, then it is considered a hazardous toxic waste.
It should be noted however, that human health based risk concentration levels, which are
typically lower than hazardous waste criteria concentrations, will more than likely be the
default factor regarding the depth and amount of remedial grading needed to mitigate
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concentrations of pesticides detected onsite. Remedial grading may include (but not
limited to) removal and burial of impacted earth materials at locations and depths with
which will effectively eliminate future human contact, as well as eliminate potential impacts
to surface water and groundwater. Guidelines for remedial earthwork is discussed in detail
in a later section of this report.
Residue concentrations of DDT^), Dieldrin, Endosulfan and Toxaphene detected in soil
samples were also compared to the Preliminary Remedial Goals (PRGs) for residential soil
concentrations (Smucker, 1998). PRG tables combine existing USEPA and CALEPA
toxicity values with generally accepted exposure factors to estimate concentrations in soil
that do not represent a cancer risk to humans greater than one-in-one million (i.e., 1 x 10~6).
Exposure pathways considered include ingestion, inhalation and dermal absorption.
Chemical concentrations presented in the PRG tables, therefore, can be directly compared
to the residue concentrations detected in soils within the property. The PRG tables may
be used initially in lieu of a health based risk assessment to determine the need for further
evaluation of sites with concentrations of known cancer-causing contaminants (i.e., site
screening).
CONCLUSIONS AND RECOMMENDATIONS
Conclusions
Based upon the information obtained during the course of this study, as well as information
provided in the referenced texts, GSI presents the following summary of findings,
conclusions, and recommendations:
• Test results for Chlorinated Pesticides and PCB's (EPA test method 8080) reported
concentrations of DDT, ODD, DDE (i.e., DDT^^), Dieldrin, Endosulfan I and II, and
Toxaphene above the laboratory detection limits. No other constituents of the test
suite were detected. Concentrations of DDT/DDD/DDE (i.e., DDT^^) were detected
in all twenty (20) samples collected from the subject property, ranging from 0.0007
mg/kg to 0.99 mg/kg (ARS-1 @ Vfe'). For comparison purposes, regulatory action
levels for hazardous waste criteria (i.e., TTLC) for DDT^^is 1.0 mg/kg.
Concentrations of Dieldrin (0.0009 mg/kg to 0.0035 mg/kg) were detected in three
(3) of the ten (10) samples collected from the 1/2-foot interval. Concentrations of
Dieldrin (0.0037 mg/kg to 0.01 mg/kg) were detected in two (2) of nine (9) samples
collected from the 11/2-foot interval. Regulatory action levels for hazardous waste
criteria (i.e., TTLC) for Dieldrin is 8.0 mg/kg.
Concentrations of Endosulfan I and II (0.0009 mg/kg to 0.009 mg/kg) were detected
in five (5) of the ten (10) samples collected from the 1/2-foot interval. Endosulfan I
was detected in one (1) of ten (10) samples collected from the 1 and 11/2-foot
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interval at a concentration of 0.0017 mg/kg. There appears to be no specific
regulatory action level for hazardous waste criteria (i.e., TTLC of Toxaphene (0.059
mg/kg to 0.619 mg/kg) were detected in eight (8) of the ten (10) samples collected
from the 1/2-foot interval. Concentrations of Toxaphene (0.066 mg/kg to 0.361
mg/kg) were detected in five (5) of nine (9) samples collected from the 11/2-foot
interval. In addition, Toxaphene was detected at a concentration of 0.313 mg/kg in
a sample collected at a depth of 1 foot (due to excavation refusal on hard
formation). Regulatory action levels for hazardous waste criteria (i.e., TTLC) for
Toxaphene is 5.0 mg/kg.
• GSI has used existing regulatory data as a screening tool for the detected
concentrations of pesticides and other contaminants within the property.
Preliminary Remedial Goals (PRGs), which combine existing USEPA and CALEPA
toxicity values with generally accepted exposure factors to estimate concentrations
in residential soil that do not represent a cancer risk to humans greater than one-in-
one million (i.e., 1 x 10~6), are 1.7 mg/kg for DDT^^, 0.0028 mg/kg for Dieldrin,
330.0 mg/kg for Endosulfan, and 0.4 mg/kg for Toxaphene. Concentrations of
DDTp-ota,), Dieldrin, and Endosulfan were also found to be less than the criteria
established as a potential risk to human health (Smucker, 1998). Detected
concentrations of DDT^) onsite are at least Vk times lower than the PRG criteria.
Detected concentrations of Dieldrin and Endosulfan onsite are at least 21/2 times and
over 100 times lower than the PRG criteria, respectively. Detected concentrations
of Toxaphene in 95 percent of the samples collected onsite are lower than the PRG
criteria. Other than the above, no detectable levels of other potentially hazardous
agricultural pesticides were reported in soil samples collected within the subject
property. Data collected indicate that concentrations of pesticides detected
generally decrease with depth. All chemical laboratory test results are presented
in Appendix B.
• Laboratory testing indicated no detectable concentrations from the
Organophosphorous Pesticides (EPA test method 8140) suite.
• Laboratory analyzes found concentrations of 2,4,DB in three (3) samples (0.0089
mg/kg to 0.013 mg/kg) and Pentachlorophenol in three (3) samples (0.0016 mg/kg
to 00.0061 mg/kg) tested in the Chlorinated Herbicides (EPA test method 8150)
suite. The PRG level for 2,4,DB is 440.0 mg/kg and 2.5 mg/kg for
Pentachlorophenol. Detected concentrations of 2,4,DB and Pentachlorophenol
onsite are over 100 times lower than the PRG criteria. No other constituents of this
suite of test were detected in soil samples collected onsite.
• To evaluate the potential for petroleum contamination within the subject property,
five (5) soil samples were collected from the driveway/traffic areas of the property.
Samples, collected from a depth of 0 to 1 foot were tested for Total Recoverable
Petroleum Hydrocarbons-TRPH (EPA test method 418.1). Two (2) of the samples
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were also tested for Semi-Volatile Organic Compounds (EPA test method 8270).
Detected concentrations of TRPH were reported to range from less than 1 0.0 mg/kg
to 12.1 mg/kg. Based upon the laboratory test results, no remedial earthwork is
recommended.
Except for bis (2-Ethylhexyl) phthalate detected in one sample (DS-5), there were
no detectable concentrations of constituents in the Semi-Volatile Organic
Compound test suite (EPA test method 8270) reported. Phthalate are plasticizers
which are used to soften plastic. Bis (2-Ethylhexyl) phthalate is often associated
with plastic sampling equipment and/or plastic containers, and is commonly a
laboratory contaminant. Review of laboratory test results as a whole do not suggest
any other related contaminants. It is GSI's opinion, therefore, that since Phthalates
are not typical working chemicals in the flower nursery industry, and since this
sample was collected outside the working area of the flower nursery (i.e., near the
southwestern site boundary with a public street), the sample concentration is not
representative of onsite conditions. Sample locations are shown on the enclosed
Site Map, Plate 1 .
• Laboratory testing for Total Lead (EPA test method 601 0) was also completed. Two
(2) samples from the driveway/traffic areas and seven (7) samples from within the
greenhouses were analyzed. Concentrations were reported to range from 19.6
mg/kg to 33.9 mg/kg. The TTLC level for Lead is 1 ,000 mg/kg. The PRG criteria for
Lead (Cal-Modified PRG) is 130 mg/kg. Based on the test data, no remedial
earthwork is recommended.
• The regulatory action levels for hazardous waste criteria (TTLC), the Preliminary
Remediation Goals (PRGs) for chemical residues (detected and non-detected
onsite), and the chemical laboratory detection limits (presented in Appendix B) were
compared. In summary, detection limits utilized by the testing laboratory were
overall at least equal to the PRG levels for all constituents, with the majority at least
4 times below the PRG levels. It should be noted that PRG levels were not available
for all analytes tested; however, based upon the majority of readily available
regulatory limits, it appears likely that detection limits utilized by the laboratory are
suitable for this evaluation.
Based upon comparison of regulatory site screening values (i.e., Preliminary
Remedial Goals), it appears that remedial measures are required to mitigate certain
residue concentrations of DDT^,^ and Toxaphene detected within the property.
• Surface signs of water wells were not observed onsite during our site
reconnaissance. State of California regional groundwater maps from 1967 indicate
that no permitted water wells exist within the site. In addition, the Ground Water Site
Inventory (GWSI) database (dated March, 1998) by the United States Geological
Society (USGS) noted no water wells within a mile radius of the subject property.
Ryland Homes W.O. E2759-SC
Carnation Property October 1 1 , 1 999
File: e:\wp7\env\e2700\e2759.acr Page 14
GeoSoils, Inc.
Data provided in in-house geotechnical reports on properties located in the area
indicate that overall, groundwater was not encountered within 25 feet of the pre-
development surfaces. Based upon our experience in the project area, beneficial
use groundwater is not anticipated to be encountered within a depth of 50 feet.
"Perched" groundwater, where relatively impermeable fill and/or sediments underlie
relatively permeable fill and/or sediments filled with water may be encountered at
shallower depths onsite, especially during the rainy season.
• Based upon the characteristic immobility of pesticides, the overall density of terrace
deposits and bedrock underlying the subject property, as well as the estimated
depth to beneficial use groundwater (i.e., greater than 50 feet), the likelihood is low
that pesticide residues detected in the upper 1 Vz feet of earth materials within the
subject site have affected groundwater.
Recommendations
Based upon the scope of work completed, GSI concludes that the concentrations of the
majority of potentially hazardous agricultural chemicals detected in earth materials on the
subject property are sufficiently below Preliminary Remedial Goals (PRGs) so as not to
represent a risk to human health. For the majority of reported concentrations, remedial
earthwork is not recommended or required. Remedial earthwork is recommended,
however, to mitigate two (2), one-acre grid areas with reported concentrations of DDT^^
and Toxaphene above Preliminary Remedial Goals (PRGs), which potentially represent a
risk to human health. GSI's recommendation for burial of affected soils are to significantly
limit the overall impact chemical residues of the buried soils have on surface waters,
ground water(s), and/or human health, both on the subject property and the immediate
area. Based upon the information obtained during the course of the assessment, GSI
presents the following recommendations:
• Surficial soils with concentrations of DDT^^ and Toxaphene greater than the
Preliminary Remedial Goal criteria should not be placed within ten (10) feet of finish
pad grade(s) within five (5) feet of street subgrade to mitigate the potential for
human contact. Soils requiring remediation should not be placed in canyon
bottoms or below subdrains, where there is potential contact with perched
groundwater. Affected soils should be buried within the property boundary only,
and placed so as not to adversely affect surface water.
• Based upon existing test data, remedial measures are needed to locally mitigate
some residue concentrations of DDT^^ and Toxaphene detected within the
property. Based upon existing data, GSI estimates that the upper one (1) foot of
soils from two (2) one-acre grids (i.e., two acres) onsite should require remediation.
Specifically, remedial earthwork is recommended in the area covering all of or a
portion of Lots 14 through 23 (see Plate 1). The estimated quantity of soils requiring
remediation is on the order of 3,225 cubic yards (yds3). Remediation measures may
Ryland Homes W.O. E2759-SC
Carnation Property October 1 1 , 1 999
File: e:\wp7\env\e2700\e2759.acr Page 1 5
GeoSoils, Inc.
include, but not limited to excavation and stockpile for use as backfill in paved street
areas at a depth of at least five (5) feet, or excavation and stockpile for use as fill
materials in building areas or open space areas at a depth of at least ten (10) feet,
which may require over-excavation to generate disposal areas; and, excavation and
disposal offsite. GSI recommends that this office, or another licensed
environmental professional consultant, observed the remedial earthwork within the
property boundary.
Review of the Site Map (Plate 1) indicates that there are 54,000 ± square feet of
paved street proposed within "A," "B," and "C" Streets. Considering a burial depth
of at least five (5) feet, the depth of remedial earthwork is estimated to be on the
order of seven (7) feet below finish grade. Calculations indicate that there is
sufficient area within the site boundary to bury all affected soil within asphalt-paved
streets.
Due to the large amount of structures and associated debris from dilapidated
greenhouses scattered within the property, pre-demolition and demolition
operations should be monitored by a representative of this office. Storage
containers with petroleum products and agricultural chemicals should be removed
from the site and disposed of following regulatory guidelines.
Removals and burial should be monitored by a representative of this office.
Sampling should be conducted at a minimum of two (2) locations during grading
(after removal of the affected earth materials onsite) to verify that all affected earth
materials have been removed and buried. The specific areas of verification
sampling for each tract are provided above and in the Recommendations section
of this report. If detectable concentrations of restricted pesticides are encountered
above the PRG criteria, additional removal would occur until earth materials with
concentrations lower than the PRG criteria are encountered.
Removal of the concrete slabs in the handling and storage compound areas should
also be observed by a representative of this office, to evaluate if petroleum staining
detected on the surface has leeched through to the subgrade. Dependant upon
actual field conditions, sampling may be conducted after removal of the concrete
to evaluate discoloration (if any) that may affect the underlying earth materials.
Stained concrete should be property disposed of offsite, following proper disposal
guidelines.
Based upon the information collected by GSI during this survey, further studies or
action, other than the above, are not proposed from an environmental viewpoint, at
this time.
Ryland Homes W.O. E2759-SC
Carnation Property October 11,1999
File: e:\wp7\env\e2700\e2759.acr Page 16
GeoSoils, Inc.
The Client should understand that the final survey report will likely be reviewed by a local
regulatory oversight agency, such as the San Diego County Department of Health
Services. Actual mitigation requirements (if any) will be provided based upon their review
comments. Consultation with a qualified environmental lawyer (in California) should be
considered regarding public disclosures and other environmental issues.
LIMITATIONS
GSI has performed the services for this project in accordance with the terms of a contract
between GSI and Client and in accordance with current professional standards for
investigations of this type. The conclusions presented in this report are based on the
information collected during the study, the present understanding of the site conditions,
and professional judgment.
Please note, subsurface and hazardous waste/toxic substance conditions may vary from
those provided in historical documents reviewed by GSI. The interpretations and
recommendations of GSI are based solely on such information and/or information supplied
by Client. Findings of this assessment based on data provided by others carries no
warranty, expressed or implied, as a result of the usage of such data.
It is possible that future assessments may reveal additional data or variations of the current
data which may require the current conclusions and recommendations to be reevaluated.
As a result, GSI makes no warranty, either express or implied, as to its findings, opinions,
recommendations, specifications, or professional advice except that they were
promulgated after being prepared in accordance with generally accepted standards of care
and diligence normally practiced by recognized consulting firms performing services of a
similar nature.
The information in this report is relevant to the date of the site work and should not be
relied on to represent conditions at any later date. Facts, conditions, and acceptable risk
factors change with time, accordingly, this report should be viewed within this context.
Ryland Homes W.O. E2759-SC
Carnation Property October 11,1999
File: e:\wp7\env\e2700\e2759.acr Page 17
GeoSoils, Inc.
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APPENDIX A
REFERENCES
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APPENDIX A
REFERENCES
California, State of, Environmental Protection Agency, 1992, "Supplemental Guidance for
Human Health Multimedia Risk Assessments of Hazardous Waste Sites and
Permitted Facilities," chapter 8, "DDT in Soil" Guidance for the assessment of health
risk to humans, dated July.
California Regional Water Quality Control Board, San Diego Region, Water quality control
plan, San Diego Basin (9), dated Septembers (Approved 1995).
County of San Diego, Environmental Health Services, 1996, Site assessment and
mitigation (SA/M), manual.
GeoSoils, Inc., 1999, Preliminary Summary of Agricultural Chemical Residue Survey,
Carnation Property, City of Carlsbad, California, W.O. E2759-SC, dated September
28.
GeoSoils, lnc.,1998a, Preliminary Geotechnical Investigation, 10-Acre
"Carnation/Fernandez" Property, City of Carlsbad, California, W.O. 2588-A-SC,
dated December 3.
, 1998b, Phase I Environmental Site Assessment, Carnation/Ferandez Property, City
of Carlsbad, San Diego County, California 92009, W.O. E2588-SC, by GeoSoils,
Inc., dated December 8.
Mackay, D., Shiu, W., Ma, K., 1997, Illustrated Handbook of Physical-Chemical Properties
and Environmental Fate for Organic Chemicals, volume V, Pesticide Chemicals,
Lewis Publishers, CRC Press LLC.
Oregon State University, 1995-1996 revisions, The Extension Toxicology Network
(EXTOXNET), electronic files in cooperative effort with Univ. Of Calif .-Davis,
Michigan State Univ., Cornell Univ., and Univ. Of Idaho.
i
Smucker, Stanford J., United States Environmental Protection Agency (USEPA), Region
IX, Region 9 Preliminary Remediation Goals (PRGs) 1998, expires May 1,1999.
State of California, 1967, Department of Water Resources, Bulletin 106-2, Groundwater
occurrence and quality: San Diego Region, vol. II: plates, dated June.
Waxman, Michael F., 1998, Agrochemical and Pesticide Safety Handbook, Lewis
Publishers, CRC Press LLC.
GeoSoils, Inc.
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- APPENDIX B
LABORATORY DATA
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D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date of Report: 9/27 and 10/5 and 8/99
Sampling Date: 9/21/99
Date Sample Received: 9/21/99
Date Extracted: 9/22 and 23/99
Date Analyzed: September 23,28 and
October 4 and 6,1999
Analyzed By: EA
Sample Type: Soil
Project Name: E2759-SC
Log Number: 99-2764 to 99-2783
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 Aticnza
Operations Manager
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SAN DIEGO, CA 92121
(858) 566-4540, FAX (858) 566-4542
CHAIN OF CUSTODY
D-TEK LOG #:
PAGE
TO #:
OF
CUSTOMER INFORMATION PROJECT INFORMATION ANALYSIS REQUEST
COMPANY:CONTACT PERSON:
PROJECT MANAGER.
U>Viyf
PROJECT
BILLING INFORMATION
BILL TO:
^
*""'
ADDRESS:
D-TEK LOG*SAMPLE #7 SAMPLE IDENTIFICATION
SAMPLE SAMPLE;
TIME ':\-
SAMPLE
MATRIX
CONTAIN
#
OF
C
O
N
T
A
1
N
E
R
S
/O
en
\,X
QQ- ,N V \
V V
N-V \v Vv V \
V*.\
IVJVi \
-Ucr
SAMPLE INTEGRITY
MEETS HOLDING TIME?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 ?Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N
. RELINQUISHED BY:2. RELINQUISHED BY;3. RELINQUISHED BY;SAMPLfe RECEIPT SPECIAL INJStRUCtlORS
DATE AND TIME:'DATE AND TIME:RECEIVED IN ICE? YES/NO
SIGNATURE:
^
SIGNATURE:SIGNATURE:TAPE SEAL INTACT Y/N NA
PRINTED NAME:Vj y . , ,PRINTED NAME:PRINTED NAME:PRESERVATIVE YES/NO NA
. RECEiVEO BY;2. RECEIVED BY:3; RECEIVED :BY:PRECAUTIONS:
DATE AND T^DATE AND TIME:DATE AND TIME:
SIGNATURE:SIGNATURE:
PRINTED NAMEM XT .PRINTED NAME:PRINTED NAME:| (A KM 5c\V*>
- ALL SAMPLES ARE SUBJECT TO TERMS AND CONDITIONS ON REVERSE SIDE -
Chain of Custody Form.xU 2/8/9S
II 11 II II Illlfl II IJ II 11 tl IJ li IJ II llfl II
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SAN DIEGO, CA 92121
(858) 566-4540, FAX (858) 566-1542
CHAIN OF CUSTODY DATE:
D-TEK LOG #:
PAGE
TO #:
J&^\_OF <J^±.
CUSTOMER INFORMATION PROJECT INFORMATION :' ANALYSIS: REiUESti::
CONTACT PERSON:
e.
PROJECT MANAGER:BILLING INFORMATION
**
ADDRESS:
D-TEK LOG #SAMPLE # 1 SAMPLE IDENTIFICAflON
SAMPLE SAMPLE
TIME ;
SAMPLE CONTAIN
#
OF
C
O
N
T
A cP
oe
r
)
VJ-zl
v-v
X xr
X
V
; \
SAMPLE INTEGRITY
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 ?Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N Y/N
. RELINQUISHED BY:fc RELlNQtilSHea BY:RELiN<5UlSHEO BV:SAMPLE ^RECEIPT
DATE AND TIM DATE AND TIME:'DATE AND TIME:RECEIVED IN ICE? YES/NO
SIGNATURE:SIGNATURE:SIGNATURE:TAPE SEAL INTACT Y/N NA
PRINTED NAME:PRINTED NAME:PRINTED NAME:PRESERVATIVE YES/NO NA
. RECEIVED BY:2. RECEIVED BY:3, RECEIVED BY:PRECAUTIONS:
DATE ANDTIM5:- 5\'C( C\^ \DATE AND TIME:DATE AND TIME:
SIGNATURE:SIGNATURE:
RINTED NAM PRINTED NAME:PRINTED NAME:
\- ALL SAMPLES ARE SUBJECT TO TERMS AND CONDITIONS ON REVERSE SIDE-
Chain of Custody Form.xls 2/M*
II 11 II II I I I I I I II II II II II 1J llll If tl fl |1
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858)566-4540 FAX (858) 566-4542
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date of Report:
Sampling Date:
Date Sample Received:
Date Analyzed:
Analyzed By:
Sample Type:
Project Name:
Log Number:
10/5/99
9/21/99
9/21/99
October 4,1999
EA
Soil
E2759-SC
99-2764,99-2766,99-2772,99-2774,
99-2776,99-2778 and 99-2782
ANALYSES RESULTS
Log#:Sample ID:
Analysis:
Prep/Analysis Method:
Units:
Total Lead
EPA 6010
mg/kg
99-2764
99-2766
99-2772
99-2774
99-2776
99-2778
99-2782
ARS-1@
ARS-2@:
ARS- 5 @:
ARS- 6 @
ARS- 7 @:
ARS- 8 @
ARS-10 (2
26.0
25.7
19.6
24.7
31.5
33.3
33.9
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
QUALITY CONTROL DATA REPORT
Date: 10/5/99
Attn: Mr. Ed Lump
Log #: 99-2764,99-2766,99-2772,99-2774,
99-2776,99-2778 and 99-2782
Date Analyzed: October 4,1999
Analysis Prep/Analysis LCS Spike Duplicate
Method % Recovery % Recovery % RPD
Total Lead EPA 6010 89 114 3
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 80 % -120 % recovery.
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 75 % -125% recovery.
% Recovery = (Spike Sample Result - Sample Result) *100/Spike Concentration.
RPD (Relative % Difference) = (Spiked Sample - Spike Duplicate) * 100 / Average Result.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta -BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB - 1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.025
0.02
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2764
ARS - 1 @ %' *DF
<DL
0.600 50
0.390 50
<DL
<DL
<DL
<DL
<DL
<DL
0.0014
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.619
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
Ellen
Operations Manager
1 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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - DDD
4,4' - DDE
4,4' -DDT
Aldrin
Alpha- BHC
Beta -BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB -1221
PCB -1232
PCB - 1242
PCB -1248
PCB -1254
PCB - 1260
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.005
0.004
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2765
ARS - 1 @ 1 Vi' *DF
<DL
0.071 10
0.051 10
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.188
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<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
GEOSOILS
5741 Palmer Way
Carlsbad, CA.9200S
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta -BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB - 1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
( fj-^^-^-*'** -*
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.01
0.008
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2766
ARS - 2 @ '/,' *DF
<DL
0.19 20
0.085 20
<DL
<DL
<DL
<DL
<DL
<DL
0.0013
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.361
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta-BHC
Gamma - BHC
Delta - BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB - 1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.01
0.008
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2767
ARS-2@1'/,' *DF
<DL
0.154 20
0.08 20
<DL
<DL
<DL
<DL
<DL
<DL
0.0017
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.361
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - DDD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta -BHC
Gamma - BHC
Delta - BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB -1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.005
0.004
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2768
ARS - 3 @ Vi' *DF
<DL
0.083 10
0.027 10
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.163
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
Ellen Atienzar
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta -BHC
Gamma - BHC
Delta - BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB -1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.01
0.008
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2769
ARS - 3 @ 1' (Refusal) *DF
<DL
0.132 20
0.042 20
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.313
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
Ellen Atienza p-"
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta-BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB - 1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB -1254
PCB - 1260
frfei^
Detection
Limit
0.0005
0.01
0.008
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Log Number:
Sample ID:
99-2770
ARS - 4 @ '/i' *DF
<DL
0.068 20
0.047 20
<DL
<DL
<DL
<DL
<DL
0.0035
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.168
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
Ellen Atienza '
Operations Manager
1 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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta - BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB - 1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
C/^xo2X*i-. •-
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
rag/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.005
0.004
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2771
ARS-4@l'/j' *DF
<DL
0.061 10
0.038 10
<DL
<DL
<DL
<DL
<DL
0.0037
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.117
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
Ellen Atienza Y
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta -BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB -1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
(ri> dQ~*^-j
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
rag/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.02
0.016
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2772
ARS - 5 @ W *DF
<DL
0.144 40
0.072 40
<DL
<DL
<DL
<DL
<DL
0.0047
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.201
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
Ellen Atienza "y
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' -DDE
4,4' -DDT
Aldrin
Alpha- BHC
Beta -BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB -1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.0005
0.0004
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
S
99-2773
ARS - 5 @ 1 W
<DL
0.0031
0.003
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
99-2774
ARS-6@'/,'
<DL
0.004
0.00082
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
Enefi Atienza
Operations Manager
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta -BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB -1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
Detection
Limit
0.0005
0.0005
0.0004
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
ing/kg
9/22/99
9/23/99
Log Number:
Sample ID:
99-2775
ARS - 6 @ 1 %'
<DL
0.00081
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
99-2779
ARS-8®!1/*'
<DL
0.0032
0.0026
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta - BHC
Gamma -BHC
Delta - BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB - 1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.005
0.004
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
••— ^
99-2776
ARS - 7 @ %' *DF
<DL
0.071 10
0.049 10
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.0048
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.059
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
Ellen Atienza y
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta - BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB -1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
9&^
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
nig/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.0025
0.002
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2777
ARS - 7 @ 1 '/i' *DF
<DL
0.031 5
0.023 5
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.066
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - ODD
4,4' -DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta-BHC
Gamma - BHC
Delta -BHC
Dleldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB-1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB -1260
8?ft^
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.025
0.02
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2778
ARS-8@'/2' *DF
<DL
0.130 50
0.083 50
<DL
<DL
<DL
<DL
<DL
<DL
0.0011
0.009
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.208
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - DDD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta -BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB -1221
PCB - 1232
PCB - 1242
PCB -1248
PCB - 1254
PCB - 1260
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.02
0.016
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
s
99-2780
ARS-9@V4' *DF
<DL
0.094 40
0.072 40
<DL
<DL
<DL
<DL
<DL
0.0009
0.0009
0.0087
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.233
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - DDD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta - BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB - 1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
Detection
Limit
0.0005
0.01
0.008
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
/
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Log Number:
Sample ID:
99-2781
ARS - 9 @ 1 1A' *DF
<DL
0.117 20
0.076 20
<DL
<DL
<DL
<DL
<DL
0.01
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
0.185
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<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
GEOSOILS
5741 Palmer Way
Carlsbad, CA. 92008
Attn: Mr. Ed Lump
Date Of Report:
Date Sample Received:
Time Sample Received:
Sampling Date :
Analyzed By :
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
ANALYSIS
4,4' - DDD
4,4' - DDE
4,4' - DDT
Aldrin
Alpha- BHC
Beta - BHC
Gamma - BHC
Delta -BHC
Dieldrin
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Heptachlor
Heptachlor Epoxide
Methoxychlor
Toxaphene
Chlordane (Tech / Total)
PCB- 1016
PCB -1221
PCB - 1232
PCB - 1242
PCB - 1248
PCB - 1254
PCB - 1260
o>
9/27/99
9/21/99
3:20 PM
9/21/99
EA
Soil
EPA 3550/3620/8080
mg/kg
9/22/99
9/23/99
Detection Log Number:
Limit Sample ID:
0.0005
0.0005
0.0004
0.0002
0.0006
0.0006
0.0003
0.0006
0.0003
0.0003
0.0005
0.0004
0.0004
0.0005
0.0005
0.0002
0.0003
0.01
0.025
0.01
0.05
0.05
0.05
0.05
0.05
0.05
0.05
99-2782
ARS - 10 @ Vi'
<DL
0.0018
0.002
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
99-2783
ARS-10@l'/a'
<DL
0.0007
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
Ellen
Operations Manager
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
9/27/99
Mr. Ed Lump
99-2764 to 99-2783
9/22/99
September 23,1999
EPA 3550/3620
EPA 8080
No target analytes were detected in the method blank.
LABORATORY CONTROL STANDARD
Compound % Recovery QC Limits % *
G-BHC(Lindane)
Heptachlor
Aldrin
Dieldrin
Endrin
4,4' DDT
PCB(1260)
MATRIX SPIKE RESULTS (99-2734)
101
109
107
115
123
102
95
32-127
34-111
42-122
36-146
30-147
25-160
8-127
Compound Spike
% Recovery
Spike Dup.
% Recovery
MS/MSD
RPD %
G-BHC (Lindane)
Heptachlor
Aldrin
Dieldrin
Endrin
4,4 - DDT
75
80
82
115
123
102
77
82
85
77
101
87
1
2
4
79
103
91
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.
il
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
SURROGATE RECOVERIES
(Tetrachloro-M-Xylene)
Log#Percent Recovery;
Method Blank
99-2764
99-2765
99-2766
99-2767
99-2768
99-2769
99-2770
99-2771
99-2772
99-2773
99-2774
99-2775
99-2776
99-2777
99-2778
99-2779
99-2780
99-2781
99-2782
99-2783
99-2783 MS
99-2783 MSD
LCS
84%
90%
83%
83%
80%
66%
83%
85%
79%
84%
80%
81%
81%
83%
81%
88%
82%
80%
84%
83%
83%
82%
84%
107%
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.
Page 2
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received:
Analyzed By:
Sample Type:
Method :
Unit:
Date Extracted:
Date Analyzed:
Analysis
Dichlorvos
Mevinphos
Demeton-O
Ethoprop
Naled
Phorate
Demeton-S
Diazinon
Disulfoton
Methyl Parathion
Ronnel
Fenthion
Chlorpyrifos
Trichlornate
Gardona
Tokuthion
Merphos
Fensulfothion
Bolstar
Azinphos Methyl
Coumaphos
\j£) f ) *-~ s.
Detection
Limit
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.01
0.005
0.005
0.005
^
10/5/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 3550/8140
mg/kg
9/22/99
9/28/99
Log Number:
Sample ID:
99-2764
ARS - 1 @ W *DF
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
99-2766
ARS - 2 @ W *DF
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received:
Analyzed By:
Sample Type:
Method :
Unit:
Date Extracted:
Date Analyzed:
Analysis
Dichlorvos
Mevinphos
Demeton-O
Ethoprop
Naled
Phorate
Demeton-S
Diazinon
Disulfoton
Methyl Parathion
Ronnel
Fenthion
Chlorpyrifos
Trichlornate
Gardona
Tokuthion
Merphos
Fensulfothion
Bolstar
Azinphos Methyl
Coumaphos
Detection
Limit
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.01
0.005
0.005
0.005
10/5/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 3550/8140
mg/kg
9/22/99
9/28/99
Log Number:
Sample ID:
99-2768
ARS - 3 @ '/*'
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
99-2770
*DF ARS - 4 @ %' *DF
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received:
Analyzed By:
Sample Type:
Method :
Unit:
Date Extracted:
Date Analyzed:
Analysis
Dichlorvos
Mevinphos
Demeton-O
Ethoprop
Naled
Phorate
Demeton-S
Diazinon
Disulfoton
Methyl Parathion
Ronnel
Fenthion
Chlorpyrifos
Trichlornate
Gardona
Tokuthion
Merphos
Fensulfothion
Bolstar
Azinphos Methyl
Coumaphos
Detection
Limit
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.01
0.005
0.005
0.005
10/5/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 3550/8140
rag/kg
9/22/99
9/28/99
Log Number:
Sample ID:
99-2772
ARS - 5 @ '/
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
99-2774
i' *DF ARS-6@'/2' *DF
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received:
Analyzed By:
Sample Type:
Method :
Unit:
Date Extracted:
Date Analyzed:
Analysis
Dichlorvos
Mevinphos
Demeton-O
Ethoprop
Naled
Phorate
Demeton-S
Diazinon
Disulfoton
Methyl Parathion
Ronnel
Fenthion
Chlorpyrifos
Trichlornate
Gardona
Tokuthion
Merphos
Fensulfothion
Bolstar
Azinphos Methyl
Coumaphos
Xjly"""*^ p
Detection
Limit
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.01
0.005
0.005
0.005
10/5/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 3550/8140
mg/kg
9/22/99
9/28/99
Log Number:
Sample ID:
99-2776
ARS - 7 @ '/2' *DF
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
99-2778
ARS - 8 @ W *DF
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
0.12
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received:
Analyzed By:
Sample Type:
Method :
Unit:
Date Extracted:
Date Analyzed:
Analysis
Dichlorvos
Mevinphos
Demeton-O
Ethoprop
Naled
Phorate
Demeton-S
Diazinon
Disulfoton
Methyl Parathion
Ronnel
Fenthion
Chlorpyrifos
Trichlornate
Gardona
Tokuthion
Merphos
Fensulfothion
Bolstar
Azinphos Methyl
Coumaphos
Detection
Limit
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.01
0.005
0.005
0.005
10/5/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 3550/8140
mg/kg
9/22/99
9/28/99
Log Number:
Sample ID:
99-2780
ARS -9@V.
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
99-2782
i' *DF ARS-10@'/z' *DF
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
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
QUALITY CONTROL DATA REPORT
Date: 10/5/99
Attn: Mr. Ed Lump
Log#: 99-2764,99-2766,99-2768,99-2770,99-2772,99-2774,
99-2776,99-2778,99-2780 and 99-2782
Date Extracted: 9/22/99
Date Analyzed: September 28,1999
Extraction Method: EPA 3550
Analysis Method: EPA 8140
Method Blank
No target analytes were detected in the method blank.
Laboratory Control Sample % Recovery
Diazinon 90
Gardona (Stirophos) 119
Methyl Parathion 100
Mevinphos 91
Naled 108
Matrix Spike Results (99-2731)
Compound Spike Spike Dup MS/MSD
% Recovery % Recovery RPD %
Diazinon 84 86 2
Dichlorvos 85 86 1
Dursban (Chlorpyrifos) 90 80 2
Methyl Parathion 86 83 4
Naled 90 92 1
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.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
SURROGATE RECOVERIES
(TRIBUTYLPHOSPHATE)
Log# Percent Recovery;
Method Blank 140%
99-2764 76%
99-2766 70%
99-2768 82%
99-2770 76%
99-2772 84%
99-2774 86%
99-2776 80%
99-2778 70%
99-2780 120%
99-2782 116%
99-2731 MS 104%
99-2731 MSB 98%
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.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received
Analyzed By:
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
Analysis
2,4,5 -T
2,4, DB
2,4, -D
Dalapon
Dicamba
Dichloroprop
Dinoseb
MCPA
MCPP
Pentachlorophenol
Silvex
Detection
Limit
0.0012
0.005
0.0011
0.0005
0.0006
0.0008
0.0011
0.20
0.15
0.001
0.0012
10/8/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 8150
mg/kg
9/23/99
10/6/99
Log Number:
Sample ID:
99-2764
ARS - 1 @ VS
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
0.0016
<D.L.
99-2766
' *DF ARS-2@y2' *DF
<D.L.
0.013
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
0.0061
<D.L.
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received
Analyzed By:
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
Analysis
2,4,5 -T
2,4, DB
2,4, -D
Dalapon
Dicamba
Dichloroprop
Dinoseb
MCPA
MCPP
Pentachlorophenol
Silvex
:
Detection
Limit
0.0012
0.005
0.0011
0.0005
0.0006
0.0008
0.0011
0.20
0.15
0.001
0.0012
10/8/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 8150
mg/kg
9/23/99
10/6/99
Log Number:
Sample ID:
99-2768
ARS - 3 @ V
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
99-2770
V *DF ARS-4@%' *DF
<D.L.
0.0095
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
0.002
<D.L.
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received:
Analyzed By:
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
Detection
Analysis Limit
10/8/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 8150
mg/kg
9/23/99
10/6/99
Log Number: 99-2772 99-2774
Sample ID: ARS-S®1/*' *DF ARS-6@V2* *DF
2,4,5 - T 0.0012
2,4, DB 0.005
2,4, - D 0.0011
Dalapon 0.0005
Dicamba 0.0006
Dichloroprop 0.0008
Dinoseb 0.0011
MCPA 0.20
MCPP 0.15
Pentachlorophenol 0.001
Silvex 0.0012
<D.L.
0.0089
<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.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received
Analyzed By:
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
Analysis
2,4,5 -T
2,4, DB
2,4, -D
Dalapon
Dicamba
Dichloroprop
Dinoseb
MCPA
MCPP
Pentachlorophenol
Silvex
Detection
Limit
0.0012
0.005
0.0011
0.0005
0.0006
0.0008
0.0011
0.20
0.15
0.001
0.0012
10/8/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 8150
rag/kg
9/23/99
10/6/99
Log Number:
Sample ID:
99-2776
ARS - 7 @ V
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
99-2778
V *DF ARS-8@>/z' *DF
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
Ellen Atienza v
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date Of Report:
Sampling Date:
Date Sample Received:
Time Sample Received
Analyzed By:
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
Analysis
2,4,5 -T
2,4, DB
2,4, -D
Dalapon
Dicamba
Dichloroprop
Dinoseb
MCPA
MCPP
Pentachlorophenol
Silvex
:
Detection
Limit
0.0012
0.005
0.0011
0.0005
0.0006
0.0008
0.0011
0.20
0.15
0.001
0.0012
10/8/99
9/21/99
9/21/99
3:20 PM
EA
Soil
EPA 8150
rag/kg
9/23/99
10/6/99
Log Number:
Sample ID:
99-2780
ARS - 9 @ V
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
<D.L.
99-2782
V *DF ARS-IO®1/!5 *DF
<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
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
QUALITY CONTROL DATA REPORT
Date: 10/8/99
Attn: Mr. Ed Lump
Log # 99-2764,99-2766,99-2768,99-2770,99-2772,99-2774,
99-2776,99-2778,99-2780 and 99-2782
Date Extracted: 9/23/99
Date Analyzed: October 6,1999
Extraction Method: EPA 8150
Analysis Method: EPA 8150
Method Blank
NO TARGET ANALYTES WERE DETECTED IN THE METHOD BLANK.
LABORATORY CONTROL STANDARD
COMPOUND % RECOVERY
2,4 - D 88
2,4,5 - TP (SILVEX) 84
2,4,5 - T 88
MATRIX SPIKE RESULTS (99-2782)
COMPOUND SPIKE SPIKE DUP
% RECOVERY % RECOVERY RPD %
2,4-D 62 64 3
2,4,5,-TP (SILVEX) 77 80 4
2,4,5-T 66 67 1
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.
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 92%
99-2764 81%
99-2766 56%
99-2768 70%
99-2770 84%
99-2772 76%
99-2774 74%
99-2776 64%
99-2778 62%
99-2780 72%
99-2782 72%
99-2782 MS 78%
99-2782 MSD 80%
LCS 100%
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.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date of Report: 10/5/99
Sampling Date: 9/20/99
Date Sample Received: 9/20/99
Time Sample Received: 3:35 PM
Date Extracted: 9/22 and 27/99
Date Analyzed: September 23 and October 4,1999
Analyzed By: DC, EA and JV
Sample Type: Soil
Project Name: E2759-SC
Log Numbers: 99-2743 to 99-2747
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
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date of Report:
Sampling Date:
Date Sample Received:
Date Extracted:
Date Analyzed:
Analyzed By:
Sample Type:
Project Name:
Log Numbers:
10/5/99
9/20/99
9/20/99
9/27/99
October 4,1999
EA and JV
Soil
E2759-SC
99-2743 to 99-2747
ANALYSES RESULTS
Log Number:
Analysis:
Prep/Analysis
Method:
Units:
Sample ID:
TRPH
EPA 418.1
rag/kg
Total Lead
EPA 6010
mg/kg
99-2743
99-2744
99-2745
99-2746
99-2747
DS-1 @ 0-1'
DS-2 @ 0-1'
DS-3 @ 0-1'
DS-4 @ 0-1'
DS-5 ® 0-1'
<10.0
10.0
12.1
<10.0
<10.0
27.0
30.0
Ellen Atienza
Operations Manager
TRPH - Total Recoverable Petroleum Hydrocarbon
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:
QUALITY CONTROL DATA REPORT
10/5/99
Mr. Ed Lump
99-2743 to 99-2747
September 27,1999
October 4,1999
Analysis Prep/Analysis
Method
LCS
% Recovery
Spike
% Recovery
Duplicate
%RPD
TRPH
Total Lead
EPA 418.1
EPA 6010
102
89
94
114
4
3
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 80 % -120 % recovery.
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 75 % -125% recovery.
% Recovery = (Spike Sample Result - Sample Result) *100/Spike Concentration.
RPD (Relative % Difference) = (Spiked Sample - Spike Duplicate) * 100 / Average Result.
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
GEOSOILS
5741 Palmer Way
Carlsbad, CA 92008
Attn: Mr. Ed Lump
Date of Report:
Sampling Date:
Date Sample Received:
Analyzed By:
Sample Type:
Method:
Unit:
Date Extracted:
Date Analyzed:
10/5/99
9/20/99
9/20/99
DC
Soil
EPA 3550/8270
rag/kg
9/22/99
9/23/99
Analysis
1 ,2,4,5-Tetrachlorobenzene
1,2- Dichlorobenzene
1 ,2-Diphenylhydrazine
1 ,2,4-Trichlorobenzene
1,3 -Dichlorobenzene
1 ,4-Dichlorobenzene
1 -Chloronaphthalene
1 -Naphthylamine
2,3 ,4,6-Tetrachlorophenol
2,4,5-Trichlorophenol
2,4,6-Trichlorophenol
2,4-Dichlorophenol
2,4-Dimethylphenol
2,4-Dinitrotoluene
2,4-Dinitrophenol
2,6-Dichlorophenol
2,6-Dinitrotoluene
2-Chloronaphthalene
2-Chlorophenol
2-Methylnaphthalene
Detection
Limits
.250
.0475
.250
.0475
.0475
.110
.250
.250
.250
.250
.0675
.0675
.0675
.143
1.050
.250
.0475
.0475
.0825
.250
Log Number: 99-2745
Sample ID: DS-3 @ 0-1'
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
99-2747
DS-5 @ 0-1'
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
Analysis
2-Methylphenol
2-Methyl-4,6-Dinitrophenol
2-Naphthylamine
2-Nitroaniline
2-Nitrophenol
2-Picoline
3,3 '-Dichlorobenzidine
3 -Methylcholoanthrene
3-Nitroaniline
4,4'-DDD
4,4'-DDE
4,4'-DDT
4-Aminobiphenyl
4-Bromophenyl Phenyl Ether
4-Chloroaniline
4-Chlorophenyl-phenyl Ether
4-Chloro-3 -methy Iphenol
4-Methylphenol
4-Nitroaniline
4-Nitrophenol
7,12-Dimethylbenz (a) Anthracene
Acenaphthene
Acenaphthylene
Acetophenone
Aldrin
alpha BHC
Aniline
Anthracene
a-,a-Dimethylphenethylamine
Benzidine
Benzoic Acid
Benzo (A) anthracene
Benzo (A) pyrene
Benzo (B) fluoranthene
Benzo (G,H,I) perylene
Benzo (K) fluoranthene
Benzyl Alcohol
Detection
Limits
.250
.600
.250
.250
.090
.250
.413
.250
.250
.070
.140
.118
.250
.0475
.250
.105
.075
.250
.250
.060
.250
.0475
.0875
.250
.0475
.250
.250
.0475
.250
1.100
1.250
.195
.0625
.120
.102
.0625
.500
Log Number: 99-2745
Sample ID: DS-3 @ 0-1'
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
99-2747
DS-5 @ 0-1'
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
Analysis
beta BHC
Nitrobenzene
N-Nitrosodimethylamine
bis (2-chloroethyl) ether
bis (2-Chloroethoxy) methane
bis (2-Chloroisopropyl) ether
bis (2-Ethylhexyl)phthalate
Butyl Benzyl Phthalate
Chlordane
Chrysene
delta BHC
Dibenzofuran
Dibenzo (A,H) Anthracene
Dibenz (A,J) Acridine
Dieldrin
Diethyl Phthalate
Dimethyl Phthalate
Diphenylamine
Di-n-butylphthalate
Di-n-Octylphthalate
Endosulfan I
Endosulfan II
Endosulfan Sulfate
Endrin
Endrin Aldehyde
Endrin Ketone
Ethyl Methanesulfonate
Fluoranthene
Fluorene
gamma BHC
Heptachlor
Heptachlor Epoxide
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
Indeno (1,2,3-CD) Pyrene
Detection
Limits
.105
.0475
.250
.143
.133
.143
.0625
.0625
.250
.0625
.250
.250
.0625
.250
.0625
.0475
.040
.250
.0625
.0625
.250
.250
.140
.250
.250
.250
.250
.055
.0475
.0775
.0475
.055
.0475
.0225
.250
.040
.0925
Log Number: 99-2745
Sample ID: DS-3 @ 0-1'
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
99-2747
DS-5 @ 0-1'
<DL
<DL
<DL
<DL
<DL
<DL
0.225
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858) 566-4540 FAX (858) 566-4542
Analysis
Isophorone
Methoxychlor
Methyl Methanesulfonate
N-Nitrosodiphenylamine
Naphthalene
N-Nitrosodi-N-Propylamine
N-Nitrosopiperidine
N-Nitroso-Di-N-Butylamine
PCB 1016
PCB 1221
PCB 1232
PCB 1242
PCB 1248
PCB-1254
PCB-1260
Pentachlorobenzene
Pentachloronitrobenzene
Pentachlorophenol
Phenacetin
Phenanthrene
Phenol
Pronamide
Pyrene
p-Dimethylaminoazobenzene
Toxaphene
Detection
Limits
.055
.250
.250
.0475
.040
.250
.250
.250
.250
.750
.250
.250
.250
.900
.250
.250
.250
.090
.250
.135
.037
.250
.047
.250
.250
Log Number: 99-2745
Sample ID: DS-3 @ 0-1'
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
99-2747
DS-5 @ 0-1'
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
<DL
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
QUALITY CONTROL DATA REPORT
Date:
Attn:
Log#:
10/5/99
Mr. Ed Lump
99-2745 and 99-2747
Date Extracted:
Date Analyzed:
Extraction Method:
Analysis Method:
9/22/99
September 23,1999
3550
8270
METHOD BLANK
No Target Analytes were found in the Method Blank.
""" LCS Recoveries
1,4-Dichlorobenzene
N-Nitroso-di-n-propylamine
1 ,2,4-TrichIorobenzene
Acenaphthene
2,4-Dinitrotoluene
Pyrene
Phenol
2-ChlorophenoI
4-Chloro-3-Methylphenol
4-NitrophenoI
Pentachlorophenol
%
Recovery
72.52
95.80
81.46
88.86
74.01
86.27
74.33
75.71
82.95
45.91
73.25
QC
Limits % **
36-105
41-116
39-98
46-118
24-120
26-127
12-110
27-123
23-117
10-133
9-118
Dup. %
Rec.
71.42
92.75
82.40
88.12
74.48
92.93
71.83
73.51
80.64
45.16
73.55
RPD
%
1.54
3.24
1.16
.83
.62
7.44
3.42
2.95
2.82
1.65
.40
Maximum
RPD%
28
38
28
31
38
31
42
40
42
50
50
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
San Diego, CA 92121
(858)566-4540 FAX (858) 566-4542
SURROGATE RECOVERIES
Acid Extractable Surrogate Recoveries
Log#
99-2745
99-2747
LCS
LCS DUP
Method Blank
2-Fluorophenol
81.3%
79.1%
89.9%
84.9%
88.1%
Phenol-d5
70.3%
69.8%
85.9%
83.0%
80.6%
2,4,6-Tribromophenol
73.6%
83.5%
77.2%
77.3%
78.4%
QC Limits 21-105%10-107%10-123%
B/N Surrogates Recoveries
Log#
99-2745
99-2747
LCS
LCS DUP
Method Blank
Nitrobenzene-d5
65.5%
69.7%
80.3%
79.3%
76.4%
2-Fluorobiphenyl
76.2%
81.5%
83.7%
84.3%
84.3%
Terphenyl-dl4
134.3%
126.1%
118.1%
95.7%
126.9%
QC Limits 35-114%43-116%33-141%
Ellen Atienza
Operations Manager
D-TEK Analytical Laboratories, Inc.
9020 Kenamar Drive, Suite 205
SAN DIEGO, CA 92121
(858) 566^540, FAX (858) 566-4542
CHAIN OF CUSTODY DATE PAGE I I_| _ OF J _
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CUSTOMER INFORMATION
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97-274^
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SPECIAL INSTRUCTIONS
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- ALL SAMPLES ARE SUBJECT TO TERMS AND CONDITIONS ON REVERSE SIDE -
ChainofCustodyFwm.xls 2/1/91
D-TEK POLICIES
Fee Schedule Criteria / Discounts: Fees are established from our fixed list prices, with the exception of
non-routine analyses requiring supplemental research, method development, extensive QA/QC reporting
data, not-routine detection limits, or additional materials. Fixed prices are applied to routine analyses and
reporting formats. The prices for non-routine analyses are assessed on a "time and materials" basis.
Expedited turnaround times for sample analyses may be arranged with advanced notice. Surcharges are
applied to the prices of analyses requiring expedited turnaround times.
Discounts are extended for projects involving large numbers of samples, or on a contractual arrangement.
Please call our office for price quotations.
Turnaround Time: Standard turnaround time is five to seven (5-7) working days for verbal results, with a
written report following within three (3) working days. Expedited turnaround times may be arranged with
advanced notice and ate subject to a surcharge. Samples received after 5:00 PM on regular working days
are considered as being received at 8:00 AM on the next working day and turnaround time begins at that
point.
Surcharges: Standard turnaround time (TAT) is five to seven (5-7) working days. On expedited
turnaround times the following surcharge factors apply: Three (3) day TAT (X) 1.2, Two (2) day TAT
(X) 1.5, One (1) day TAT (X) 2.0 and Same Day TAT (X) 2.5.
Holding Times: Holding times are carefully monitored at D-TEK since this is a vital part of Quality
Control procedures. D-TEK will make every effort to perform analyses within the applicable holding
times established by the Environmental Protection Agency (EPA) or equivalent methodology. We reserve
the right to apply a surcharge to prices if the sample holding time dictates sample processing within a
specified time that would otherwise not be performed within our standard turnaround time.
Payment: Payment for pre-approved accounts is net 30 days from the date of invoice. On all analyses that
are done on other than pre-approved accounts, payment must accompany the sample at the time of the
sample delivery unless credit is approved by D-TEK. Cash, checks, money order or Visa / MasterCard are
acceptable forms of payment. D-TEK has a forty dollar ($40) minimum laboratory/data generation fee per
visit. Without pre-approved credit, no analyses will begin until payment is received in full.
Sample Archiving: After thirty (30) calendar days, samples will be disposed of or returned to customer.
D-TEK will not be held responsible for reanalysis of samples after this time. Samples stored after 30
calendar days are subject to an archiving fee of $5.00 per sample per month. Samples received with
instructions to only ''hold" or "store" are subject to an archiving fee commencing on the date of receipt.
However, if analytical work is performed within the thirty (30) days, the archiving fee is suspended until
another thirty (30) days have passed.
Hazardous Samples: Hazardous samples will be returned to the client. Samples that D-TEK deems as
"hazardous" or difficult to dispose of are subject to a disposal fee per sample.
Reporting Results: Analyses are reported in wet weight values. Dry weight values may be obtained when
percent total solids is performed at an additional cost.
Overtime Services; Time-and-a-half charges will apply for hours worked 5:00 PM to 12:00 AM Monday
through Friday and 8:00 AM through 5:00 PM on Saturday and 8:00 AM to 5:00 PM on Sunday. Triple
time will be charged for hours from 12:00 AM to 8:00 AM on Saturday and 5:00 PM to 12:00 AM on
Sunday.
Sample Collection: D-TEK does not accept any liability with regard to the collection, preservation
technique, or transportation method of samples by clients.
Policies, 2/8/99