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HomeMy WebLinkAboutCT 93-10; Seapointe Resort; Tentative Map (CT) (33)Prepared By: Geocon Environmental Consultants 6970 Flanders Drive San Diego, California 92121-2974 HUMAN HEALTH RISK ASSESSMENT REPORT for Carlsbad Seapointe Resort Carlsbad, California Prepared for: Finova Capital Corporation Phoenix, Arizona Project No. 08605-06-02 February 27, 1995 GEOCON Environmental Consultants Inc. Project No. 08605-06-02 February 27, 1995 HAND DELIVERED Mr. Jeff Owings, Vice President Finova Capital Corporation 1850 North Central Avenue, Mail Station 1107 Phoenix, Arizona 85002-2209 Subject: CARLSBAD SEAPOINTE RESORT CARLSBAD, CALIFORNIA HUMAN HEALTH RISK ASSESSMENT REPORT Dear Mr. Owings: In accordance with the request of Mr. Timothy J. Stripe on behalf of Continental Commercial Corporation, Geocon Environmental Consultants, Inc. (GEC) has performed a human health risk assessment for the proposed Carlsbad Seapointe Resort. The site comprises approximately 2.3 acres between Poinsettia Lane and Palomar Airport Road in Carlsbad, California. GEC understands that Continental Commercial Corporation (hereafter referred to as the "Client"), is the current owner of the site, and has requested that a risk assessment be conducted subsequent to the determination that the known human carcinogens Toxaphene, DDT, and DDT's product of degradation DDE, are present at detectable concentrations in near-surface soil on-site. It is further understood that Finova Capital Corporation will be provided a copy of the report and will rely on the information contained within the report. The accompanying report presents the details of the human health risk assessment performed for the site. If there are any questions concerning the contents of this "Report," or if we may be of further service, please contact the undersigned at your convenience. Vef truly yours, ENVIRONMENTAL CONSULTANTS Andrew Brysonies E. Likins 17030 /saw Steven A. Ward Staff Scientist (1) Addressee (2) Continental Commercial Corporation Attention: Mr. Timothy J. Stripe, Co-President 6970 Flanders Drive San Diego, CA 92121-2974 619558-6100 FAX 619 558-8437 TABLE OF CONTENTS HUMAN HEALTH RISK ASSESSMENT REPORT Page INTRODUCTION 1 Site Identification 2 Review of Previous Reports/Regulations 2 SCOPE OF SERVICES 3 Task I - Soil Sampling and Analysis 3 Task II - Preliminary Quantitative Public Health Risk Assessment 3 LIMITED SOIL SAMPLING AND LABORATORY ANALYSIS 4 Purpose 4 Field Activities 5 Laboratory Testing and Results 5 Discussion of Results of Laboratory Analysis 6 TOXICITY ASSESSMENT, CHEMICAL PROPERTIES AND ROUTE OF EXPOSURE 7 Toxicity Assessment 7 DDT and DDE 7 Toxaphene 8 Chemical Properties 8 Exposure Pathways 9 DDT and DDE 9 Toxaphene 10 Potential Human Receptors 10 ESTIMATION OF POTENTIAL CHRONIC DAILY INTAKES 11 Chemical Concentrations in Soil 12 Particulate Emission Factor 12 Soil-To-Air Volatilization Factor 13 Individual Lifetime Cancer Risk Equation 13 Dermal Contact with Soil 14 POTENTIAL ADVERSE HEALTH EFFECTS 14 SUMMARY OF FINDINGS 16 REPORT LIMITATIONS 17 REFERENCES 19 TABLE OF CONTENTS (concluded) HUMAN HEALTH RISK ASSESSMENT REPORT Figures: 1. Vicinity Map 2. Site Plan Tables: I. Summary of Analytical Laboratory Test Results, EPA Test Method 8080 - Organochlorine Pesticides Appendices: A. Laboratory Report and Chain of Custody Documentation B. Soil-to-Air Volatilization Factor; Particulate Emission Factor (PEF); and Commercial/Industrial Soil - Carcinogenic Effects, Individual Lifetime Cancer Risk Calculations - DDT C. Soil-to-Air Volatilization Factor; Particulate Emission Factor (PEF); and Commercial/Industrial Soil - Carcinogenic Effects, Individual Lifetime Cancer Risk Calculations - DDE D. Soil-to-Air Volatilization Factor; Particulate Emission Factor (PEF); and Commercial/Industrial Soil - Carcinogenic Effects, Cancer Risk from Dermal Intake of Toxaphene in Soil; Individual Lifetime Cancer Risk Calculations - Toxaphene Project 08605-06-02 February 27, 1995 HUMAN HEALTH RISK ASSESSMENT REPORT INTRODUCTION This report presents the results of a human health risk assessment conducted for the proposed Carlsbad Seapointe Resort. The services were performed in accordance with "Change Order No, 001-SAW" executed February 17, 1995. It is understood that Continental Commercial Corporation (i.e., the "Client") is the current owner of the site and has requested that a human health risk assessment be conducted in substantial accordance with the Safe Drinking Water and Toxic Enforcement Act of 1986 (the Act), also known as Proposition 65, promulgated in California Code of Regulations (CCR) Title 22, Section 12000. The Act prohibits a person in the course of doing business from knowingly and intentionally exposing an individual to a chemical, known to the State of California to cause cancer or reproductive toxicity, at a concentration of toxicological significance, without first giving that individual clear and reasonable warning. Estimated potential individual intakes of DDT, DDE, and toxaphene at levels less than those calculated to result in greater than one excess cancer risk in an exposed population of 100,000, assuming lifetime exposure at the level in question, would waive disclosure requirements, according to the Act. - 1 - Project 08605-06-02 February 27, 1995 Site Identification The site consists of approximately 2.3 acres of currently undeveloped land east of Ponto Drive, west of the Atchinson, Topeka, and Santa Fe (AT&SF) railroad right-of-way, and approximately half-way between Palomar Airport Road and Poinsettia Lane in Carlsbad, California. The approximate location of the site is depicted on the Vicinity Map, presented as Figure 1. Review of Previous Reports/Regulations A preliminary site assessment (PSA), including limited soil sampling and laboratory analysis, has been previously performed to estimate the existing potential for the presence of hazardous materials on the subject property. The results of the assessment are presented in the report entitled "Preliminary Site Assessment and Limited Soil Sampling Report, for Carlsbad Seapointe Resort, Carlsbad, California", prepared for Finova Capital Corporation, prepared by Geocon Environmental Consultants, and dated February 22, 1995. On the basis of information presented in the above-referenced report, it was recommended that a quantitative risk assessment be performed for the purpose of establishing if potential exposure to concentrations of the pesticides detected (DDT, DDE and toxaphene) in on-site surficial soil have the potential to produce individual intakes calculated to result in greater than one excess cancer risk in an exposed population of 100,000, assuming lifetime exposure at the level in question. -2- Project 08605-06-02 February 27, 1995 SCOPE OF SERVICESi Task I - Soil Sampling and Analysis 1 • Ten (10) soil samples obtained with a stainless steel hand-auger were collected on the property. The six approximate locations of the hand auger borings are illustrated on the Site Plan (Figure 2). Four soil samples were obtained at the " ground surface (at 0 to 6 inches below the ground surface), four soil samples were obtained at a depth of 2 to 21A feet below the ground surface, and two soil samples " were obtained at a depth of 3 to 3V£ feet below the ground surface. * • Quality control/quality assurance procedures were provided during the field " sampling activities. The stainless steel hand auger utilized to collect the soil t samples was cleaned before and after each sampling effort by washing in an Alconox solution with two subsequent water rinses. The soil samples were i transferred to laboratory-supplied glass jars, capped with teflon-lined lids, labeled, placed in a cooler with ice, and transported to the laboratory. The samples were transferred to the laboratory using chain of custody procedures. * • The soil samples were submitted to APPL, Incorporated, a California-certified environmental laboratory. The samples were subjected to testing for the presence „ of organochlorine pesticides and herbicides following EPA Test Methods 8080 and 8150, respectively. Task II - Preliminary Quantitative Public Health Risk Assessment. Utilizing the results of the laboratory analysis of the soil samples obtained during the field activities (Task I), a quantitative public health risk assessment was prepared. The scope of services performed for the quantitative public health risk assessment are outlined as follows: • The homogenous concentrations of DDT, DDE, and toxaphene present in the near- surface soil was estimated based upon results of laboratory analysis of soil samples. The average soil concentration was determined according to either the level of total concentration at which the compounds were detected or a level of Vfc the laboratory limit of detection when the compound was not detected. -3 - Project 08605-06-02 February 27, 1995 A summary description of the toxicity associated with DDT, DDE and toxaphene was prepared. Potential human exposure pathways from near-surface soil containing DDT, DDE and toxaphene were determined based on physical and chemical properties of these compounds. Site- and chemical-specific soil-to-air volatilization factors were predicted utilizing standard default parameter values, presented in U.S. Environmental Protection Agency (EPA) and California Environmental Protection Agency (Cal-EPA) guidance documents, and site- and chemical-specific parameter values. A site-specific paniculate emission factor was determined to estimate potential exposure point concentrations in air using a particulate emission factor equation presented a U.S. EPA guidance document, which utilizes default values contained in the guidance document and site-specific values. Potential chronic daily intakes (GDI) of DDT, DDE and toxaphene were calculated, based upon oral and inhalation routes of exposure, for the potentially exposed worker on-site during construction activities. The chronic daily intakes (GDI) were converted to an incremental risk of an individual developing cancer (Risk) from exposure to DDT, DDE, and toxaphene, utilizing an oral slope factor (SF), by means of the equation: Risk = GDI x SF. The aggregate risk (RiskT) associated with exposure to near-surface soil was computed based upon the calculated risk for DDT, DDE, and toxaphene (RiskJ, by means of the equation: RiskT = E Risk;. LIMITED SOIL SAMPLING AND LABORATORY ANALYSIS Purpose The purpose of the limited soil sampling and laboratory analysis was to evaluate the potential presence of chlorinated pesticides/herbicides in the near-surface soil related to past agricultural activities on the site and/or impacts from agricultural activities on adjacent properties. Analysis -4- Project 08605-06-02 February 27, 1995 was performed to determine the presence of organochlorine pesticides/herbicides, as opposed to organophosphate or carbarnate pesticides/herbicides, because of the relatively greater environmental persistence of organochlorine pesticides/herbicides. Field Activities The field activities were performed by representatives of GEC on January 24, and February 4, 1995. Ten (10) soil samples were collected on the property. Eight (8) soil samples were obtained from hand auger borings Bl, B2, B3, and B4. The approximate locations of the hand auger borings are illustrated on the Site Plan (Figure 2). Samples Bl-1, B2-1, B3-1, and B4-1 were obtained at the ground surface (at 0 to 6 inches below the ground surface) and samples Bl-2, B2- 2, B3-2, and B4-2 were obtained at 2 to 2'A feet below the ground surface, on January 24, 1995. The determination was made, through laboratory analysis, that DDT, DDE, and Toxaphene were present in the soil samples collected at 2 to 2Vz feet. Subsequently, two (2) soil samples were obtained on February 4, 1995, from hand auger borings B5 and B6, at a depth of 3 to 3Vi feet below the ground surface, for the purpose of delineating the vertical extent of the pesticides. Laboratory Testing and Results The soil samples were submitted to APPL, Incorporated and analyzed for the presence of organochlorine pesticides and herbicides following EPA Test Methods 8080 and 8150 to determine the total concentration of pesticides and herbicides in the soil matrix. The results of laboratory -5- Project 08605-06-02 February 27, 1995 analysis of the soil samples is presented in Table I. Copies of the analytical results and chain of custody forms for the laboratory analysis are presented in Appendix A. The organochlorine pesticide toxaphene was detected in the soil samples at total concentrations ranging from 0.76 milligrams per kilogram (mg/kg) in sample Bl-2 (obtained at a depth of 2 to 2 '/£ feet below ground surface) to 2.6 mg/kg in sample Bl-1 (obtained at a depth of 0 to 6 inches below ground surface). The organochlorine pesticide DDT was detected in the soil samples at total concentrations ranging from 0.03 mg/kg in sample Bl-2 to 1.0 mg/kg in sample B4-1. DDE, a product of degradation of DDT, was detected in the soil samples at total concentrations ranging from 0.07 mg/kg in sample B2-1 to 0.10 mg/kg in sample B4-1. The results of the laboratory analysis indicated that organochlorine pesticides/herbicides other than Toxaphene and DDT, DDE and/or DDD were not present at levels greater than the laboratory limit of detection. Discussion of Results of Laboratory Analysis The results of the laboratory tests performed on the ten soil samples indicate that detectable levels of DDT, DDE and toxaphene are present in the soils of the site between the ground surface and a depth of approximately 2V£ feet. The average concentrations of DDT, DDE and toxaphene measured between these depths are 0.0569, 0.0538 and 1.245 mg/kg, respectively. The pesticides DDT, DDE and toxaphene were not detected in the soil samples collected at depths of 3 to 3Vi feet. -6- Project 08605-06-02 February 27, 1995 Toxicrrv ASSESSMENT, CHEMICAL PROPERTIES AND ROUTE OF EXPOSURE Toxicity Assessment The U.S. EPA has estimated that equivalent intakes of DDT or DDE have the same potential to cause cancer in humans, based upon duplicate oral slope factors of 0.34 mg/kg/day (IRIS, 1995). Toxaphene is considered to be approximately three times more toxic than DDT and DDE, based upon a comparison of toxaphene's oral slope factor of 1.1 mg/kg/day (IRIS, 1995). Estimates of human toxicity are based on the extrapolation of dose level and carcinogenic response observed in animals. Human exposure data for DDT and DDE is considered to be inadequate for the determination of a dose-response relationship in humans (ATSDR, 1994a). Studies examining the relationship between oral and inhalation exposure to toxaphene and cancer in humans is not available (ATSDR, 1994b). Additional information concerning DDT, DDE, and toxaphene is presented below. DDT and DDE. The organochlonne pesticide DDT, and its product of degradation DDE, are classified according to the Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65) as chemicals known to the State of California to cause cancer (CCR, 1993) and by the United States Environmental Protection Agency (U.S. EPA) as probable (Group B2) human carcinogens (IRIS, 1995). DDT and DDE are stored most readily in fatty tissues, and stored amounts leave the body very slowly. Levels in fatty tissue may remain either relatively the same over time or even increase with continued exposure. People exposed for a long time to small -7- Project 08605-06-02 February 27, 1995 amounts, such as people who made DDT, had reversible enzymatic changes although there was no sign that DDT caused permanent harmful effects (ATSDR, 1994a). Toxaphene. Toxaphene, also known as chlorinated camphene, is a manufactured insecticide containing over 670 chemicals. Toxaphene, one of the most heavily used insecticides in the U.S. until 1982, is classified according to the Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65) as a chemical known to the State of California to cause cancer (CCR, 1993) and by the U.S. EPA as a probable (Group B2) human carcinogen (IRIS, 1995). Once toxaphene enters the body, it rapidly spreads to all organs. Toxaphene is quickly broken down in the body and excreted in feces and urine, with nearly all the toxaphene eliminated from the body within 24 to 36 hours after absorption. Breathing high levels of toxaphene has been reported to damage the lungs, nervous system, liver, and kidneys, and can cause death. Reportedly, scientists have no information about how low-level exposure for a long time affects humans, and there is presently no evidence that toxaphene has caused cancer in humans (ATSDR, 1994b). Chemical Properties The compounds DDT, DDE and toxaphene possess low water solubilities and high organic carbon partition coefficients (ATSDR, 1994a & 1994b). Consequently these compounds do not readily -8- Project 08605-06-02 February 27, 1995 dissolve in water and tend to remain adsorbed onto soil particles, although they may become airborne adsorbed to paniculate matter. Due to the high absorption potential of DDT, DDE and toxaphene to soils, these compounds are considered to be extremely persistent in soils. Estimates of the half-life for DDT biodegradation in soil range from 2 years to greater than 15 years. The half-life of DDE is estimated to be greater than that of DDT (Lichtenstein and Schulz, 1959). Reportedly, the half-life of toxaphene in soil is approximately 11 years (ATSDR, 1994b). Exposure Pathways An exposure pathway is a mechanism by which an individual is exposed to a chemical. Exposure pathways are determined based on chemical and physical characteristics of the chemical and the potential for human contact to the chemical or media that contains the chemical. DDT and DDE. DDT, DDE and enter the body mainly when a person eats contaminated food, although small amounts of DDT and DDE may also be breathed in and absorbed into the body. Because DDT and DDE attached to particles are usually too large to pass through the lungs into the body after breathing air containing them, these particles are likely to be carried upward in the mucus of the air passages and swallowed. DDT and DDE do not enter the body through -9- Project 08605-06-02 February 27, 1995 the skin very easily (ATSDR, 1994a). Consequently, potential routes of exposure to DDT and DDE include: • Inadvertent ingestion of soil. • Inhalation of fugitive dust. Toxaphene. Similar to DDT and DDE, toxaphene enters the body mainly when a person eats contaminated food. And, like DDT and DDE, it adsorbs to particles too large to pass through the lungs into the body after breathing air containing them, these particles are likely to be carried upward in the mucus of the air passages and swallowed. However, unlike DDT and DDE, Toxaphene is absorbed through the skin (ATSDR, 1994b). Consequently, potential routes of exposure to toxaphene include: • Inadvertent ingestion of soil. • Inhalation of fugitive dust. • Direct dermal contact with soil. Potential Human Receptors Proposed development of the subject property includes commercial/industrial improvement. Human exposure to the soils of the site is likely during proposed development activities. The individual with the greatest potential for exposure to DDT, DDE and toxaphene during construction activities is the on-site construction worker. The worker will inadvertently ingest - 10- Project 08605-06-02 February 27, 1995 soil, have direct contact with the soil and inhale fugitive dust on the site. Soil particles will potentially become airborne and respirable from the use of construction equipment for activities such as loading and unloading of soil material, transportation of uncovered soil material, vehicular traffic on unpaved roads, soil material spreading operations, and from wind erosion. ESTIMATION OF POTENTIAL CHRONIC DAILY INTAKES The term "intake" is defined as the amount of a chemical which actually enters the body tissues. The total intake may only be a fraction of die amount of the chemical to which an individual is exposed. The calculation of chronic daily intakes (GDI) of DDT, DDE, and toxaphene is accomplished utilizing chemical-specific soil-to-air volatilization factors and a site-specific paniculate emission factor. The CDI is converted to an incremental risk of an individual developing cancer (Risk) utilizing an oral slope factor (SF), by means of the equation: Risk = CDI x SF. An aggregate risk (RiskT) of developing cancer from the combination of DDT, DDE, and toxaphene is calculated by means of the equation: RiskT = £ Risk;, whereby Risk; = the risk associated with intake of each chemical alone. Each of these equations and accompanying default values were obtained from the "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals)." An explanation of the equations is presented as follows. -11 - Project 08605-06-02 February 27, 1995 The derivations of the chronic daily intakes (GDI), chemical-specific soil-to-air volatilization factors, the site-specific particulate emission factor, the conversion of the GDI to an incremental risk of an individual developing cancer, are presented by chemical for DDT, DDE, and toxaphene in Appendices B, C, and D, respectively. Chemical Concentrations in Soil DDT, DDE and toxaphene were measured in samples obtained at the near-surface (0 to 6 inches in depth) and at 2 to 2 Vz feet in depth, but not at 3 to 3 Vi feet in depth. The average concentration of the pesticides in the soil at near-surface and 2 to 2 V4 feet are utilized in the exposure calculations since it is assumed that the pesticides are fairly homogeneous at this depth on the site. As previously noted, the average concentrations of DDT, DDE and toxaphene detected at this depth are 0.0569, 0.0538 and 1.245 mg/kg, respectively. Particulate Emission Factor The particulate emission factor (PEF) relates the contaminant concentration in soil with the concentration of respirable particles (PM10) in the air due to fugitive dust emissions from surface contamination sites, from wind erosion and on-site activities. The equation is a representative of a surface with "unlimited erosion potential" which is characterized by bare surfaces of finely divided material, such as sandy agricultural soil with a large number of erodible particles. This -12- Project 08605-06-02 February 27, 1995 characterization is applicable to the subject site. A single PEF is calculated for the three pesticides and is presented in Appendices B through D. Soil-To-Air Volatilization Factor The volatilization factor (VF) is used for defining the relationship of contaminants in soil and the volatilized contaminants in air. The VF assumes that the contaminant concentration in the soil is homogenous from the surface soil to the depth of concern and that the contaminated material is not covered by contaminant-free soil material. Chemical-specific VF were calculated for each pesticide and are presented in Appendices B through D. Individual Lifetime Cancer Risk Equation This risk-based equation has been derived in order to reflect the potential risk from exposure to a chemical given a specific pathway, medium, and land-use combination, utilizing oral and inhalation slope factors found in IRIS. Under commercial/industrial land use, risk from the contaminant in soil is assumed to be due to direct ingestion, inhalation of volatiles from the soil, and inhalation of particles from the soil, and is calculated for an adult worker only. For this type of land use, it is assumed for calculating risk that there is a grater potential for use of heavy equipment and related traffic in and around contaminated soils and, thus, greater potential for soils to be disturbed and produce particulate volatile emissions than in most residential land use areas. -13- Project 08605-06-02 February 27, 1995 An individual lifetime cancer risk is calculated for each pesticide and is presented in Appendices B through D. Dermal Contact with Soil As previously stated, it has been determined that dermal exposure is a potential route of exposure to toxaphene. The equations discussed above do not account for dermal exposure in the calculation of risk. An equation to calculate dermal exposure in a residential setting from contact with chemicals in soil is presented in the U.S. EPA "Risk Assessment Guidance for Superfund Volume 1 - Human Health Evaluation Manual (Part A)." An equation to estimate lifetime average daily intake of toxaphene from dermal exposure to soil was derived from this equation, utilizing concentration of toxaphene in soil, an estimate of individual's surface area of skin exposed to soil, a soil-to-skin adherence factor, and potential frequency and duration of exposure. The derivation of the risk associated with dermal exposure to toxaphene in soil is presented in Appendix D. POTENTIAL ADVERSE HEALTH EFFECTS The Safe Drinking Water and Toxic Enforcement Act of 1986 (The Act) states that for chemicals assessed in accordance with The Act, the risk level which represents no significant risk shall be one which is calculated to result in one excess case of cancer in an exposed population of 100,000, assuming lifetime exposure at the level in question. As determined by the equations . 14- Project 08605-06-02 February 27, 1995 presented in Appendices B, C, and D, the individual additional lifetime cancer risk from exposure to on-site soil impacted with DDT, DDE, and toxaphene are as follows: • DDT - 3.43 x • DDE - 3.21 x 10-9 i j • Toxaphene - 6.94 x 10"7 1 • Aggregate Risk - 7.01 x 10"7 -15-m m Project 08605-06-02 February 27, 1995 , SUMMARY OF FINDINGS The quantitative risk assessment presented in this study indicates that adverse chronic health effects are not expected to occur from on-site exposures to DDT, DDE or toxaphene during development of the site. The results of this quantitative risk assessment indicate that the concentration of DDT, DDE and toxaphene in the soils of the site do not pose a significant threat to human health for the proposed site development and, therefore, it is not necessary to provide notice of die presence of these compounds in order to comply with Proposition 65 legislation (CCR, Title 22, Section 12000). It is recommended that environmental counsel be contacted to obtain additional information pertaining to current disclosure requirements of Proposition 65. - 16- Project 08605-06-02 February 27, 1995 REPORT LIMITATIONS This report has been prepared for Continental Commercial Corporation (i.e the "Client). It is understood that Finova Capital Corporation and the United States Army Corps of Engineers will be provided copies of the report and will rely on the information contained within the report. The information contained within this report is not to be transferred to other parties without the written authorization of Geocon Environmental Consultants Incorporated. The client should recognize that the absence of significant indicators that suggest that hazardous materials have impacted the site does not preclude the presence of hazardous materials in areas or soil samples not tested on the property. The client should also recognize that the risk level estimates derived in this health risk assessment are characterized by inherent uncertainties and are dependent on numerous assumptions. The uncertainties are a function of the completeness and accuracy of the data and the mathematical equations used. These equations are based upon assumptions that simplify and approximate actual site conditions. Based upon our current knowledge, conservative assumptions have been utilized where possible. The estimates of health risks provided are, thus, likely to be overestimates of actual health risks incurred. The limitations of this approach should be recognized and the results - 17- Project 08605-06-02 February 27, 1995 of the preliminary health risk assessment should only be used as an indicator of potential site conditions. The information obtained in characterizing the environmental and geotechnical conditions at the site can vary at different times and locations from those obtained during the field investigation and the interpolation or extrapolation of such data results in some degree of uncertainty. Therefore, the soil sampling and laboratory testing should only be deemed conclusive with respect to the information obtained. No guarantee of the results of the assessment is implied within the intent of this report. The services performed were conducted in accordance with the local standard of care in the geographic region at the time the services were rendered. - 18- Project 08605-06-02 February 27, 1995 REFERENCES Agency for Toxic Substances and Disease Registry (ATSDRa). 1994. lexicological Profile for 4,4'-DDT, 4,4'-DDE, 4,4'-DDD. U.S. Public Health Service. TP-93/05. May 1994. Agency for Toxic Substances and Disease Registry (ATSDRb). 1994. Draft Toxicological Profile for Toxaphene. U.S. Public Health Service. August 1994. California Code of Regulations (CCR), 1993. Title 22, Chapter 3, Section 12000. Safe Drinking Water and Toxic Enforcement Act of 1986. State of California Health and Welfare Agency. California Environmental Protection Agency, Department of Toxic Substances Control. 1992. DDT in Soil: Guidance for the Assessment of Health Risk to Humans. July 1992. California Environmental Protection Agency, Department of Toxic Substances Control, Office of Scientific Affairs, Ecological and Human Risk Section. 1995. Geocon Incorporated. 1994. "Geotechnical Investigation for Seapointe Resort, Carlsbad, California." Prepared for Continental Commercial Corporation, Carlsbad, California. December 29, 1994. Geocon Environmental Consultants, Incorporated. 1995. "Preliminary Site Assessment and Limited Soil Sampling Report for Seapointe Resort, Carlsbad, California." Prepared for Finova Capital Corporation, Phoenix, Arizona. February 22, 1995. Lichtenstein, E. and K. Schulz. 1959. Persistence of Some Chlorinated Hydrocarbon Insecticides as Influenced by Soil Types, Rate of Application and Temperature. J. Econ. Entomol., Vol. 52, pp. 124-131. (As cited in ATSDR, 1988). U.S. EPA, 1989. "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part A)." December, 1989. U.S. EPA, 1991. "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals)." December, 1991. U.S. EPA, 1994. "Region IX Preliminary Remediation Goals (PRGs)" Second Half, 1994. U.S. EPA, 1995. Integrated Risk Information System (IRIS). DDT, DDE and Toxaphene Files. February, 1995. U.S. EPA. 1995. Environmental Research Laboratory, Measurements Branch. Athens, Georgia. January, 1995. „ ^ MlOW U \»! \V K..V4- SOURCE: 1994 THOMAS BROTHERS MAP SAN DIEGO COUNTY, CALIFORNIA N NO SCALE REPXOOUCEO vwm nn*ssnn OHAMTTO IY -moows WOTMMS MAPS. THIS MAP IS COrrUKXTSJ ft TMOMAS BHOS. MAPS. IT IS UNLMWVH. TO COPT ON KCPROCUCC AU OR ANY fun THEREOF. WHCTMei TO» PEKaONAL USC ORNE5Al£, \MTHOUT PERMISSION GEOCON ENVIRONMENTAL CONSULTANTS INCORPORATED 6970 FI.ANDF.RS DRIVH-SAN DIFOO, CAMFORNU 92121-2974 PHONE 619 551-6100 - FAX 619 551-S437 VICINITY MAP CARLSBAD SEAPOLNTE RESORT CARLSBAD, CALIFORNIA SAW/RSA DSK/EOOO DATE 2-27-1995 PROJ. NO. 08605 -06-02 FIG. 1 Project No. 08605-06-01 February 27, 1995 TABLE I SUMMARY OF ANALYTICAL LABORATORY TEST RESULTS EPA Test Method 8080 - Organochlorine Pesticides SAMPLE I.D. Bl-1 Bl-2 B2-1 B2-2 B3-1 B3-2 B4-1 B4-2 B5-3 B6-3 TOTAL CONCENTRATION (mg/kg) Toxaphene 2.6 0.76 1.8 ND 1.4 ND 1.9 ND ND ND DDT 0.09 0.03 0.08 ND 0.08 ND 0.10 ND ND ND DDE 0.10 ND 0.07 ND 0.08 ND 0.08 ND ND ND DDT+ DDE 0.19 0.03 0.15 ND 0.16 ND 0.18 ND ND ND EXTRACTABLE " CONCENTRATION fcgA)* Toxaphene ND ND ND NA ND NA ND NA NA NA DDT ND NA NA NA ND NA ND NA NA NA DDE ND NA NA NA 0.26 NA 0.07 NA NA NA DDT+ DDE ND NA NA NA 0.26 NA 0.07 NA NA NA ND - NA - mg/kg - Not detected above laboratory detection limit Not analyzed milligrams per kilogram micrograms per liter *As determined by the Waste Extraction Test (WET) Method APPENDIX A 4203 UUesr Swift T Fresno, Colifornia 93722 T Phone 209.275-2175 T Fox 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 Bl-1 APPL Sample No: R19346-18510S Method 8080 Results (OC1 Pesticides): Sample Date: 01/31/95 Report Date: 02/03/95 Page l of 2 Date Received: 02/01/95 Date Extracted: 02/02/95 Compound Concentration mcr/ka Ouantitation limit mcr/ka Alachlor Aldrin Benef in a-BHC 8-BHC 8-BHC Captan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4' -DDT 2,4' -TDE/DDD 4,4' -DDE 4,4' -DDT 4,4' -TDE/DDD Methoxychlor Nitrofen PCNB Toxaphene * ND » None Detected ND* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.09 ND 0.10 ND ND ND ND ND 2.6 p/_ Tested By cL5-f- Checked By ^Tc^ 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 — T— -Sf^JeJ£*n*^ "V GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/03/95 San Diego, California 92121 Attn: Steven Ward Page 2 of 2 Sample I.D. No: 08605-06-01 Date Received: 02/01/95 Bl-1 APPL Sample No: R19346-18510S • Date Extracted: 02/01/95 Method 8150 Results (Herbicides): Compound Concentration mcr/kg Quant i tat ion limit mg/kg Dicamba ND* 0.04 2,4-D ND 0.20 2,4-DB ND 0.40 2,4-DP (Dichlorprop) ND 0.20 2,4,5-T ND 0.04 2,4,5-TP (Silvex) ND 0.04 Dinoseb (DNBP) ND 0.10 Dalapon ND 2.0 MCPA ND 40 MCPP ND 40 * ND = None Detected Tested By_ Checked By ^a/r* ff_ (nc^dL 4203 ULIesc Suuift r' Fresno. California 93722 T Phone 209.275-2175 T Fax 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 Bl-2 APPL Sample No: R19346-18511S Method 8080 Results (OC1 Pesticides): Sample Date: 01/31/95 Report Date: 02/03/95 Page 1 of 2 Date Received: 02/01/95 Date Extracted: 02/02/95 Compound Concentration ma/ka: Ouantitation limit ma/kc Alachlor Aldrin Benef in a-BHC fi-BHC 5-BHC Cap tan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4' -DDT 2,4' -TDE/DDD 4,4' -DDE 4,4' -DDT 4,4' -TDE/DDD Methoxychlor Nitrofen PCNB Toxaphene J « Estimated value, * ND = None Detected ND* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.03 J ND ND ND ND ND ND ND 0.76 J below detection limit. c\/ ~-i — • iTested By <z£M*-t*J euL Checked By TZLxvvv^L 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 fcr^rrwOv "V GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 Bl-2 APPL Sample NO: R19346-18511S Method 8150 Results (Herbicides): Sample Date: 01/31/95 Report Date: 02/03/95 Page 2 of 2 Date Received: 02/01/95 Date Extracted: 02/01/95 Compound Concentration ma/kg Quantitation limit mg/ka Dicamba 2,4-D 2,4-DB 2,4-DP (Dichlorprop) 2,4,5-T 2,4,5-TP (Silvex) Dinoseb (DNBP) Dalapon MCPA MCPP ND* ND ND ND ND ND ND ND ND ND 0.04 0.20 0.40 0.20 0.04 0.04 0.10 2.0 40 40 * ND = None Detected Tested By Checked By — -__. 4203UUestSujifi: T Fresno, Colifornio 93722 T Phone 209.275-2175 T Pox 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 B2-1 APPL Sample No: R19346-18512S Method 8080 Results (OC1 Pesticides): Sample Date: 01/31/95 Report Date: 02/03/95 Page 1 of 2 Date Received: 02/01/95 Date Extracted: 02/02/95 Compound Concentration mg/kg Ouantitation limit mg/kcr Alachlor Aldrin Benefin a-BHC S-BHC a-BHC Cap tan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4' -DDT 2,4' -TDE/DDD 4,4' -DDE 4, 4 '-DDT 4,4' -TDE/DDD Methoxychlor Nitrofen PCNB Toxaphene * ND = None Detected ND* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.08 ND 0.07 ND ND ND ND ND 1.8 fTested By oh Checked By -fi 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 uZ^TiJlL***^ ^r^A £^L*2«- GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 B2-1 APPL Sample No: R19346-18512S Method 8150 Results (Herbicides); Sample Date: 01/31/95 Report Date: 02/03/95 Page 2 of 2 Date Received: 02/01/95 Date Extracted: 02/01/95 Compound Concentration mcr/kg Ouantitation limit mg/ka Dicamba 2,4-D 2,4-DB 2,4-DP (Dichlorprop) 2,4,5-T 2,4,5-TP (Silvex) Dinoseb (DNBP) Dalapon MCPA MCPP ND* ND ND ND ND ND ND ND ND ND 0.04 0.20 0.40 0.20 0.04 0.04 0.10 2.0 40 40 * ND » None Detected Tested By_ Checked By 4203 UUesc Suiift T Fresno. California 93722 v Phone 209.275-2175 T fox 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 B2-2 APPL Sample No: R19346-18513S Method 8080 Results (OC1 Pesticides): Compound Alachlor Aldrin Benefin a-BHC S-BHC 6-BHC Captan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4'-DDT 2,4'-TDE/DDD 4,4'-DDE 4,4'-DDT 4,4'-TDE/DDD Methoxychlor Nitrofen PCNB Toxaphene * ND = None Detected Sample Date: 01/31/95 Report Date: 02/03/95 Page 1 of 2 Date Received: 02/01/95 Date Extracted: 02/02/95 Concentration ma/kcr ND* ND ND ND ND ND ND ND ND ND ND ND ND ND :ate ND ND > ND ND ND :ide ND ND ND ND ND ND ND ND ND ND ND Ouantitation limit ma/ka 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 Tested By Checked By jcbmc GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/03/95 San Diego, California 92121 Attn: Steven Ward Page 2 of 2 Sample I.D. No: 08605-06-01 Date Received: 02/01/95 B2-2 APPL Sample No: R19346-18513S Date Extracted: 02/01/95 Method 8150 Results (Herbicides): Compound Concentration ma/kg Ouantitation limit mg/kg Dicamba ND* 0.04 2,4-D ND 0.20 2,4-DB ND 0.40 2,4-DP (Dichlorprop) ND 0.20 2,4,5-T ND 0.04 2,4,5-TP (Silvex) ND 0.04 Dinoseb (DNBP) ND 0.10 Dalapon ND 2.0 MCPA ND 40 MCPP ND 40 * ND = None Detected Tested By_ Checked By_ 4203 West Sujift v Fresno. Colifornio 93722 T Phone 209.275-2175 T Fox 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 B3-1 APPL Sample No: R19346-18514S Method 8080 Results (OC1 Pesticides): Sample Date: 01/31/95 Report Date: 02/03/95 Page 1 of 2 Date Received: 02/01/95 Date Extracted: 02/02/95 Compound Concentration mcr/ka Ouantitation limit mcr/kcr Alachlor Aldrin Benef in a-BHC S-BHC 6-BHC Captan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4' -DDT 2,4' -TDE/DDD 4,4' -DDE 4,4' -DDT 4,4' -TDE/DDD Methoxychlor Nitrofen PCNB Toxaphene * ND » None Detected ND* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.08 ND 0.08 ND ND ND ND ND 1.4 ^Tested By____GC Checked By "/; 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 li^-t+^J auPh-t^jb*^ 1\^u CJO&XK GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/03/95 San Diego, California 92121 Attn: Steven Ward Page 2 of 2 Sample I.D. No: 08605-06-01 B3-1 APPL Sample No: R19346-18514S Date Received: 02/01/95 Date Extracted: 02/01/95 Method 8150 Results (Herbicides): Compound Concentration mcr/kcr Ouantitation limit Dicamba 2,4-D 2,4-DB 2,4-DP (Dichlorprop) 2,4,5-T 2,4,5-TP (Silvex) Dinoseb (DNBP) Dalapon MCPA MCPP ND* ND ND ND ND ND ND ND ND ND 0.04 0.20 0.40 0.20 0.04 0.04 0.10 2.0 40 40 * ND « None Detected Tested By_ Checked By 4203 West Swift T Fresno. California 93722 T Phone 209.275-2175 T fax 209.275-M22 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 B3-2 APPL Sample No: R19346-18515S Method 8080 Results (OC1 Pesticides): Compound Alachlor Aldrin Benefin a-BHC S-BHC 6-BHC Captan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4'-DDT 2,4'-TDE/DDD 4,4'-DDE 4,4'-DDT 4,4'-TDE/DDD Methoxychlor Nitrofen PCNB Toxaphene Sample Date: 01/31/95 Report Date: 02/03/95 Page 1 of 2 Date Received: 02/01/95 Date Extracted: 02/02/95 Concentration mq/kcr ND* ND ND ND ND ND ND L ND ND ND ND ND ND ND iate ND ND ! ND ND ND :ide ND ND ND ND ND ND ND ND ND ND ND Ouantitation limit mcr/kcr 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 ND None Detected Tested By_ Checked By_ GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/03/95 San Diego, California 92121 Attn: Steven Ward Page 2 of 2 Sample I.D. No: 08605-06-01 Date Received: 02/01/95 B3-2 APPL Sample No: R19346-18515S Date Extracted: 02/01/95 Method 8150 Results (Herbicides): Compound Concentration mg/ka Ouantitation limit mcr/kg Dicamba ND* 0.04 2,4-D ND 0.20 2,4-DB ND 0.40 2,4-DP (Dichlorprop) ND 0.20 2,4,5-T ND 0.04 2,4,5-TP (Silvex) ND 0.04 Dinoseb (DNBP) ND 0.10 Dalapon ND 2.0 MCPA ND 40 MCPP ND 40 * ND = None Detected Tested By_ Checked By 4203 LUest Suuift v Fresno. Colifornio 93722 T Phone 209.275-2175 T Fox 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 B4-1 APPL Sample No: R19346-18516S Method 8080 Results (OC1 Pesticides): Sample Date: 01/31/95 Report Date: 02/03/95 Page 1 of 2 Date Received: 02/01/95 Date Extracted: 02/02/95 Compound Concentration ma/ka Quantitation limit mcr/ka Alachlor Aldrin Benefin a-BHC fi-BHC a-BHC Cap tan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4' -DDT 2,4' -TDE/DDD 4,4' -DDE 4,4' -DDT 4,4' -TDE/DDD Methoxychlor Nitrofen PCNB Toxaphene * ND = None Detected ND* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.10 ND 0.08 ND ND ND ND ND 1.9 /}/ Tested By rL(U Checked By ^~rhsv 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 — - _ A A— — *-i •» Mm >-C*r~l eLiLL+rU**^ ~rLts LJ&O~JQ\ GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/03/95 San Diego, California 92121 Attn: Steven Ward Page 2 of 2 Sample I.D. No: 08605-06-01 Date Received: 02/01/95 B4-1 APPL Sample No: R19346-18516S Date Extracted: 02/01/95 Method 8150 Results (Herbicides): Compound Concentration ma/kg Ouantitation limit mg/kg Dicamba ND* 0.04 2,4-D ND 0.20 2,4-DB ND 0.40 2,4-DP (Dichlorprop) ND 0.20 2,4,5-T ND 0.04 2,4,5-TP (Silvex) ND 0.04 Dinoseb (DNBP) ND 0.10 Dalapon ND 2.0 MCPA ND 40 MCPP ND 40 * ND = None Detected Tested By_ Checked By 4203 UUest Sujift f Fresno, Colifornio 93722 T Phone 209.275-2175 T Fox 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 B4-2 APPL Sample No: R19346-18517S Method 8080 Results (OC1 Pesticides); Compound Alachlor Aldrin Benefin a-BHC S-BHC 5-BHC Captan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4'-DDT 2,4'-TDE/DDD 4,4'-DDE 4,4'-DDT 4,4'-TDE/DDD Me thoxychlor Nitrofen PCNB Toxaphene Sample Date: 01/31/95 Report Date: 02/03/95 Page 1 of 2 Date Received: 02/01/95 Date Extracted: 02/02/95 Concentration mcr/kcr ND* ND ND ND ND ND ND ND ND ND ND ND ND ND 'ate ND ND i ND ND ND :ide ND ND ND ND ND ND ND ND ND ND ND Ouantitation limit ma/ka 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 * ND = None Detected Tested By_ Checked By_ GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 B4-2 APPL Sample No: R19346-18517S Sample Date: 01/31/95 Report Date: 02/03/95 Page 2 of 2 Date Received: 02/01/95 Date Extracted: 02/01/95 Method 8150 Results (Herbicides): Compound Concentration mcr/kq Ouantitation limit_mg/ka Dicamba 2,4-D 2,4-DB 2,4-DP (Dichlorprop) 2,4,5-T 2,4,5-TP (Silvex) Dinoseb (DNBP) Dalapon MCPA MCPP ND* ND ND ND ND ND ND ND ND ND 0.04 0.20 0.40 0.20 0.04 .0.04 0.10 2.0 40 40 * ND = None Detected Tested By_ Checked By ^ll\/r*ft,^ll\ 4203UUescSujift v Fresno. Colifbrnio 93722 v Phone 209.275-2175 v Fox 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 Blank for samples taken 01/31/95 APPL Sample No: R19346-950202S Method 8080 Results (OC1 Pesticides) Compound Concentration mg/ka Alachlor Aldrin Benefin a-BHC fi-BHC 5-BHC Captan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4'-DDT 2,4'-TDE 4,4'-DDE 4,4'-DDT 4,4'-TDE Methoxychlor Nitrofen PCNB Toxaphene * ND - None Detected ND* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Sample Date: NA Report Date: 02/03/95 Page 1 of 5 Date Received: NA Date Extracted: 02/02/95 Detection limit mg/kg 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 Checked By_ "GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Project ID No: 08605-06-01 APPL Spike ID: R19346 18510S-18517S 18511SA Concentration Units: mg/kg SPIKES Report Date: 02/03/95 Page 2 of 4 Method Analysis Date Amt in Amt Percent Sample Spiked Results Recovery RPD 8080 8080 8080 8080 8080 8080 Lindane Heptachlor Aldrin Dieldrin Endrin 4,4'-DDT 02/02/95 02/02/95 02/02/95 02/02/95 02/02/95 02/02/95 0.00 0.00 0.00 0.00 0.00 0.00 0.0667 0.0667 0.0667 0.167 0.167 0.167 0.0411 0.0375 0.0320 0.0846 0.0882 0.0883 61.3 56.2 48.0 50.7 52.8 52.9 19 41 49 49 48 70 APPL Spike ID: R19346 18510S-18517S 18511SB Method Analysis Date Amt in Amt Percent Sample Spiked Results Recovery RPD 8080 8080 8080 8080 8080 8080 Lindane Heptachlor Aldrin Dieldrin Endrin 4,4'-DDT 02/02/95 02/02/95 02/02/95 02/02/95 02/02/95 02/02/95 0.00 0.00 0.00 0.00 0.00 0.00 0.0667 0.0667 0.0667 0.167 0.167 0.167 0.0498 0.0569 0.0526 0.140 0.144 0.184 74.7 85.3 78.8 83.8 86.2 110 19 41 49 49 48 70 Comments: Percent recoveries are all in control. Spike A recoveries are lower causing slightly elevated RPD. See Laboratory Control Spike (LCS). Checked By •GEOCON Environmental Consultants, 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Inc.Report Date: 02/03/95 Page 3 of 5 Project ID No: 08605-06-01 APPL Spike ID: R19346 18510S-18517S 950202SLCS Concentration Units: mg/kg LABORATORY CONTROL SPIKE Method Analysis Date Amt in Amt Percent Sample Spiked Results Recovery 8080 8080 8080 8080 8080 8080 Lindane Heptachlor Aldrin Dieldrin Endrin 4, 4 '-DDT 02/02/95 02/02/95 02/02/95 02/02/95 02/02/95 02/02/95 0.00 0.00 0.00 0.00 0.00 0.00 0.0667 0.0667 0.0667 0.167 0.167 0.167 0.0505 0.0589 0.0548 0.143 0.145 0.141 75.7 88.3 82.2 85.6 86.8 84.4 Comments: Checked By GEOCON Environmental Consultants, Inc. Sample Date: NA 6970 Flanders Drive Report Date: 02/03/95 San Diego, California 92121 Attn: Steven Ward Page 4 of 5 Sample I.D. No: 08605-06-01 Date Received: NA Blank for samples taken 01/31/95 APPL Sample No: R19346-950201S Date Extracted: 02/01/95 Method 8150 Results (Herbicides): Compound Concentration mq/kcr Quantitation limit mg/kcr Dicamba ND* 0.04 2,4-D ND 0.20 2,4-DB ND 0.40 2,4-DP (Dichlorprop) ND 0.20 2,4,5-T ND 0.04 2,4,5-TP (Silvex) ND 0.04 Dinoseb (DNBP) ND 0.10 Dalapon ND 2.0 MCPA ND 40 MCPP ND 40 * ND - None Detected Checked By 'GEOCON Environmental Consultants, 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Inc.Report Date: 02/03/95 Page 5 of 5 Project ID No: 08605-06-01 APPL Spike ID: R19346 18510S-18517S 18510SA Concentration Units: mg/kg SPIKES Method Analysis Date Amt in Amt Percent Sanrole Spiked Results Recovery RPD 8150 8150 8150 8150 8150 Dicamba 2,4-DP 2,4-D Silvex 2,4,5-T 02/01/95 02/01/95 02/01/95 02/01/95 02/01/95 0.0 0.0 0.0 0.0 0.0 0.200 0.400 0.200 0.200 0.200 0.172 0.537 0.269 0.199 0.221 86.0 134 135 99.5 111 1.2 5.0 5.0 1.5 2.2 APPL Spike ID: R19346 18510S-18517S 18510SB Method Analysis Date Amt in Sample, Amt Spiked Results Percent Recovery RPD 8150 8150 8150 8150 8150 Dicamba 2,4-DP 2,4-D Silvex 2,4,5-T 02/01/95 02/01/95 02/01/95 02/01/95 02/01/95 0.0 0.0 0.0 0.0 0.0 0.200 0.400 0.200 0.200 0.200 0.174 0.511 0.256 0.196 0.226 87.0 128 128 98.0 113 1.2 5.0 5.0 1.5 2.2 Comments: Checked By " Y-}c/3"*io^ ^^" ^RLjjfFftdvanced Technolt ^jjjj ~~ ^^Laboratories IS 10 E. 33r<l Siregl^^ Signal Hill. CA 90807 ^"\. (310) 9SKM045 • FAX (310) 989 Client: - " • »» •• II 11 II •• • m . . __ __ CHAIN OF CUSTODY RECORD PS «- _J 76> Batch *: P.O.»: FOR LABORATORY USE ONLY: DO.* 40^1)-^ Logged By: Dale: Time: Method of Transport Walk-in D Courier O UPS D FED. EXP. K ATL D Sample Condition Upon Receipt CHILLED YD N D CONTAINER INTACT YD N D SEALED YD ND 1 OF SPLS MATCH COC YD NG SEAL INTACT YD ND * HAZARDOUS FEE YD ND PRESERVED YD N D HEAOSPACE(VOA) YD N D CONTR.LOTI COOLER TEMP 'C (26) Address: (^O TU«^U^<S \"> / . J^-^VV. -$-^C- City ^.N Project Name:,-- » i i <r i Project #:Co'bb^J be^pom-f1 O&&OE ^.sbfld^^^tf^^.,, — - - fleDraiuished by : IS^IMUO «><i Pnni«« NW»I ^1*^15 (=&. rt i^kacii RB( ^ . Slate C_/V Zip Code 47P/P TEL:<d1 > 55B -6»oos** t , .—i •• "iFAX:( ^\(\ ) <$!:>$, ~ S '3 / Sampler: (P'inl8d Na™) (Signature) > "~r^ A — O/ceived by: isigiuko wd pi«ud N«n«i 'l~~ r^-<t~^r~-_TT> At t-Vf Dale: I.-'X I Cf~^ Time: r» • ^T'J x— i.^^\^V— v^J*ti-Vt— rJJl_^ C--Af « 1 -* ' * T — ' .? • ? ' G-^^^ Received by: (sign<u»w<ipiini«iN>>ru| Date: Time: Relinquished by : (signwii. ^ PIMM NM») ,»/»y £.,**/*** Received by: (simM* •* fiwrf MM..) « — 7'"? /Lf^//ti / * fl , i /V$ KCilHUt&/tlfrj „ , . ^ Time: t/\ - 1 >f~<^>^-*i <CAjjPref-\ / / r^'*xUJ>~fJi£A4T^ **t—(—qi /o.^iij ^ Un n sa dis r '1 hereby authorize ATL to perform the work indicated below: ess otherwise Project Mgr /Submitter: >ques(ed, all <^_t \ I J \ ^2 / CiK~mplos w'lll h« X?TCv'fr\ VSO-fC Dais: I l3\llD Dosed 60 days . **'** "am* liter receipt. /^U)i/u. /$ W&sJ/ SHIP TO LAB: 1ES1 Ml , DAM CLIEN1 ID 1 T E MI ) :L 5 I- 7lc — n"'D LA8 USE ONLY: Batch »: Lab No. SHIP T (SUB CON TEST Signature OLAB: SHIP TO LAB:IRACT) (SUBCONIRACn TEST AIL* ATL* DATE DATE ClfiNTID CLCNTIO Sample Description Sample I.D. Bl- 1 Ri'7- &^- R'9'^ B3-r*— • \L P D-> W-f Laboraiory Standard Ottter lli.i .rn T- Date 'A< '/^/NA/ */3t '/?) ^l'A/y^/ Time «-»^ /^5f >.'o7j ?-'^ 9:?/j >->f >:^f 7-^( T»T A Overnight „ EmergencyTAT: A- < 24 hr B" Next workday rv,,,.ni.,,-,r T,,,10^. n^Prnr- W WOC c= Special Inslfuciions/Commenis:' p /J i, 'J-UO' ^ J X»l rSet 'an-tlysis ftSiAlfs wi]/ be to«i'/ab/e Z-G'RS'-A Fax "^'xJ K-ard copy of re-S^/Vs ^owv/J. be -a.p/>f toa^ec/ A^>AP. pleesc re"Tw.rr\ cooler a^v.d b/ne. /cfc "/^ 6e<5ct)'^\ Circle or Add / /£>/ //////////r-»^m% /^^^/^////ff/W/Ww///& . X ^ «. «^ ~. »v> •H. ^ Critical 2 Workdays n Urgentu= 3 Workdays % =-! X f / / CIRCLE / / APPROPRIATE / MATRIX / MATRIX '*/§/$/ /$/§//W/////M/w/////////™ loufine ' '*' starts B«.m. 'WoTkdays S±P£-ST" lit,. P r.;. , | !lr T .ffvtl-.r ' O m-.^" P Pl-^tj- M MRlr'l 3D Conlainer(s] #Type - 0' . .. - z O (-<>rx LUMiu (X 0. Q A/QC HTNE LJ BWQCB D WIP 111 NAVY GCT n OTHER REMARKS Preservatives: H=Hcl N=HNO3 S=H*SO« C=4'C 7 :?n</(r )> O NaOM T-Mo.-R O. 4203 UUest Sujift T Fresno. Californio 93722 T Phone 209.275-2175 T Fox 209.275-4422 GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/10/95 San Diego, California 92121 Attn: Steven Ward Page 1 of 1 Sample I.D. No: 08605-06-01 Bl-1 APPL Sample No: R19346-18510S Date Received: 02/01/95 Date Extracted: 02/09/95 California Code of Regulations Title 22 Article 11 Section 66700 Waste Extraction Test (WET) for Extractable Concentration (EC) Method 8080 Results (OC1 Pesticides); Compound Concentration ua/L Quantitation limit ua/L 2,4'-DDT 2,4'-TDE/DDD 4,4'-DDE 4,4'-DDT 4,4'-TDE/DDD Toxaphene ND* ND ND ND ND ND 0.05 0.05 0.05 0.05 0.05 1.0 * ND = None Detected Tested By Checked By 4203 UUest Sujift v Fresno. California 93722 T Phone 209.275-2175 T Fox 209.275-4422 GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/10/95 San Diego, California 92121 Attn: Steven Ward Page 1 of 1 Sample I.D. No: 08605-06-01 Bl-2 APPL Sample No: R19346-18511S Date Received: 02/01/95 Date Extracted: 02/09/95 California Code of Regulations Title 22 Article 11 Section 66700 Waste Extraction Test (WET) for Extractable Concentration (EC) Method 8080 Results (OC1 Pesticides): Compound Concentration /zg/L Ouantitation limit /zg/L Toxaphene ND* 1.0 * ND « None Detected Tested By__ Checked By_ J /l/fr- \ 4203 UJest Sujift T Fresno. California 93722 T Phone 209.275-2175 T For 209.275-4422 GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/10/95 San Diego, California 92121 Attn: Steven Ward Page 1 of 1 Sample I.D. No: 08605-06-01 B2-1 APPL Sample No: R19346-18512S Date Received: 02/01/95 Date Extracted: 02/09/95 California Code of Regulations Title 22 Article 11 Section 66700 Waste Extraction Test (WET) for Extractable Concentration (EC) Method 8080 Results (OC1 Pesticides): Compound Concentration ftg/L Ouantitation limit ptg/L Toxaphene ND* 1.0 * ND - None Detected Tested By_ Checked By s'sZ' ^6 4203 West Swift T Fresno. California 93722 T Phone 209.275-2175 T Fax 209.275-4422 GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/10/95 San Diego, California 92121 Attn: Steven Ward Page 1 of 1 Sample I.D. No: 08605-06-01 Date Received: 02/01/95 B3-1 APPL Sample No: R19346-18514S Date Extracted: 02/09/95 California Code of Regulations Title 22 Article 11 Section 66700 Waste Extraction Test (WET) for Extractable Concentration (EC) Method 8080 Results (OC1 Pesticides): Compound Concentration ag/L Ouantitation limit 2,4'-DDT ND* 0.05 2,4'-TDE/DDD ND 0.05 4,4'-DDE 0.26 0.05 4,4'-DDT ND 0.05 4,4'-TDE/DDD ND 0.05 Toxaphene ND 1.0 * ND = None Detected Tested By_ Checked By_ 4203 West Sujift T Fresno. California 93722 v Phone 209.275-2175 T Fax 209.275-^422 GEOCON Environmental Consultants, Inc. Sample Date: 01/31/95 6970 Flanders Drive Report Date: 02/10/95 San Diego, California 92121 Attn: Steven Ward Page 1 of 1 Sample I.D. No: 08605-06-01 B4-1 APPL Sample No: R19346-18516S Date Received: 02/01/95 Date Extracted: 02/09/95 California Code of Regulations Title 22 Article 11 Section 66700 Waste Extraction Test (WET) for Extractable Concentration (EC) Method 8080 Results (OC1 Pesticides): Compound Concentration ua/L Quantitation limit uq/L 2,4'-DDT 2,4'-TDE/DDD 4,4'-DDE 4,4'-DDT 4,4'-TDE/DDD Toxaphene ND* ND 0.07 ND ND ND 0..05 0.05 0.05 0.05 0.05 1.0 * ND = None Detected Tested By_ Checked By 4203 ULJest Suuft T Fresno, California 93722 T Phone 209.275-2175 T Fax 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 Blank for samples taken 01/31/95 APPL Sample No: R19346-950209S Sample Date: NA Report Date: 02/10/95 Page 1 of 2 Date Received: NA Date Extracted: 02/09/95 California Code of Regulations Title 22 Article 11 Section 66700 Waste Extraction Test (WET) for Extractable Concentration (EC) Method 8080 Results (OC1 Pesticides): Compound Concentration gg/L Ouantitation limit gg/L 2,4'-DDT 2,4'-TDE/DDD 4,4'-DDE 4,4'-DDT 4,4'-TDE/DDD Toxaphene ND ND ND ND ND ND 0.05 0.05 0.05 0.05 0.05 1.0 * ND = None Detected Checked By GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Project ID No: 08605-06-01 APPL Spike ID: R19346 18510S-18517S 18516SMS Concentration Units: mg/kg MATRIX SPIKE Report Date: 02/03/95 Page 2 of 2 Method 8080 8080 8080 8080 8080 8080 8080 Analysis Lindane Heptachlor Aldrin Dieldrin Endrin 4, 4 '-DDT Toxaphene — » • ^f Date 02/09/95 02/09/95 02/09/95 02/09/95 02/09/95 02/09/95 02/09/95 Amt in Sainple 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Amt Spiked 0.50 0.50 0.50 1.25 1.25 1.25 10.0 Results 0.426 0.388 0.415 1.03 0.853 0.625 11.0 Percent Recovery 85.2 77.6 83.0 82.4 68.2 50.0 110 Comments: Checked By 4203 West Scuifc v Fresno. California 93722 T Phone 209.275-2175 T fax. 209.275-4422 GEOCON Environmental Consultants, Inc. Sample Date: 02/04/95 6970 Flanders Drive Report Date: 02/10/95 San Diego, California 92121 Attn: Steven Ward Page 1 of 2 Sample I.D. No: 08605-06-01 B5-3 APPL Sample No: R19386-18794S Method 8060 Results (OC1 Pesticides); Date Received: 02/06/95 Date Extracted: 02/07/95 Compound Concentration mq/ka Alachlor Aldrin Benef in a-BHC fi-BHC 6-BHC Cap tan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4 -DDT 2,4 -TDE/DDD 4,4 -DDE 4,4 -DDT 4,4 -TDE/DDD Methoxychlor Nitrofen PCNB Toxaphene ND* ND ND ND ND ND ND ND ND ND . ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Ouantitation limit mg/kg 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 * ND = None Detected Tested By_ Checked By_ GEOCON Environmental Consultants, Inc. Sample Date: 02/04/95 6970 Flanders Drive Report Date: 02/10/95 San Diego, California 92121 Attn: Steven Ward Page 2 of 2 Sample I.D. No: 08605-06-01 Date Received: 02/06/95 B5-3 APPL Sample No: R19386-18794S Date Extracted: 02/08/95 Method 8150 Results (Herbicides); Compound Concentration ma/kg Quant it at ion limit ing/kg Dicamba ND* 0.04 2,4-D ND 0.20 2,4-DB ND 0.40 2,4-DP (Dichlorprop) ND 0.20 2,4,5-T ND 0.04 2,4,5-TP (Silvex) ND 0.04 Dinoseb (DNBP) ND 0.10 Dalapon ND 2.0 MCPA ND 40 MCPP ND 40 * ND - None Detected Tested By Checked By & 4203 ULJest Sujift r Fresno, California 93722 T Phone 209.275-2175 r Fox 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 B6-3 APPL Sample No: R19386-18795S Method 8080 Results (OC1 Pesticides): Compound Alachlor Aldrin Benefin Qf-BHC 6-BHC 6-BHC Captan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4'-DDT 2,4'-TDE/DDD 4,4'-DDE 4,4'-DDT 4,4'-TDE/DDD Methoxychlor Nitrofen PCNB Toxaphene * ND * None Detected Tested By_ Checked By_ Sample Date: 02/04/95 Report Date: 02/10/95 Page 1 of 2 Date Received: 02/06/95 Date Extracted: 02/07/95 Concentration ma/ka ND* ND ND ND ND ND ND L ND ND ND ND ND ND ND :ate ND ND • ND ND ND :ide ND ND ND ND ND ND ND ND ND ND ND Quantitatpion limit ma/kg 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 GEOCON Environmental Consultants, Inc. Sample Date: 02/04/95 6970 Flanders Drive Report Date: 02/10/95 San Diego, California 92121 Attn: Steven Ward Page 2 of 2 Sample I.D. No: 08605-06-01 Date Received: 02/06/95 B6-3 APPL Sample No: R19386-18794S Date Extracted: 02/08/95 Method 8150 Results (Herbicides)j Compound Concentration mcr/kcr Quantisation limit mcr/kg Dicamba ND* 0.04 2,4-D ND 0.20 2,4-DB ND 0.40 2,4-DP (Dichlorprop) ND 0.20 2,4,5-T ND 0.04 2,4,5-TP (Silvex) ND 0.04 Dinoseb (DNBP) ND 0.10 Dalapon ND 2.0 MCPA ND 40 MCPP ND 40 * ND = None Detected Tested By Checked By 4203 Uliest Sujift T Fresno. Colifomio 93722 T Phone 209.275-2175 T Fox 209.275-4422 GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.E. No: 08605-06-01 Blank for samples taken 02/04/95 APPL Sample No: R19386-950207S Sample Date: NA Report Date: 02/10/95 Page 1 of 5 Date Received: NA Date Extracted: 02/07/95 Method 8080 Results LOCI Pesticides): Compound Concentration ma/ka Detection limit ma/ka Alachlor Aldrin Benefin a-BHC fi-BHC 6-BHC Captan Carbophenothion Chlordane Dicofol Dieldrin DMPA Endosulfan I Endosulfan II Endosulfan sulfate Endrin Endrin aldehyde Endrin ketone Heptachlor Heptachlor epoxide Lindane 2,4'-DDT 2,4'-TDE 4,4'-DDE 4,4'-DDT 4,4'-TDE Me thoxychlor Nitrofen PCNB Toxaphene * ND = None Detected ND* ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 0.05 1.0 Checked By •Pc "GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Project ID No: 08605-06-01 APPL Spike ID: R19386 18794S-18795S 18830SA Concentration Units: mg/kg SPIKES Report Date: 02/10/95 Page 2 of 5 Method Analysis Date Amt in Amt Percent Sample Spiked Results Recovery RPD 8080 8080 8080 8080 8080 8080 Lindane Heptachlor Aldrin Dieldrin Endrin 4, 4 '-DDT 02/07/95 02/07/95 02/07/95 02/07/95 02/07/95 02/07/95 0.00 0.00 0.00 0.00 0.00 0.894 0.0667 0.0667 0.0667 0.167 0.167 0.167 0.0472 0.0381 0.0332 0.0971 0.103 0.838 70.8 57.1 49.8 58.1 61. "7 **** 57 16 12 24 28 26 APPL Spike ID: R19386 18794S-18795S 18830SB Method Analysis Date Amt in Samole Amt Spiked Results Percent Recovery RPD 8080 8080 8080 8080 8080 8080 Lindane Heptachlor Aldrin Dieldrin Endrin 4,4'-DDT 02/07/95 02/07/95 02/07/95 02/07/95 02/07/95 02/07/95 0.00 0.00 0.00 0.00 0.00 0.894 0.0667 0.0667 0.0667 0.167 0.167 0.167 0.0850 0.0446 0.0375 0.123 0.136 1.09 127 66.9 56.2 73.6 81.4 151 57 16 12 24 28 26 Comments: Poor 4,4'-DDT recovery and high RPD due to matrix interference. See Laboratory Control Spike (LCS950207S) Checked By "GEOCON Environmental Consultants, 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Inc.Report Date: 02/10/95 Page 3 of 5 Project ID No: 08605-06-01 APPL Spike ID: R19386 18794S-18795S 950207SLCS Concentration Units: mg/kg LABORATORY CONTROL SPIKE Method 8080 8080 8080 8080 8080 8080 Analysis Date Amt in Amt Percent Sample .. Spiked Results Recovery Lindane Heptachlor Aldrin Dieldrin Endrin 4,4'-DDT 02/07/95 02/07/95 02/07/95 02/07/95 02/07/95 02/07/95 0.00 0.00 0.00 0.00 0.00 0.00 0.0667 0.0667 0.0667 0.167 0.167 0.167 0.0515 0.0611 0.0575 0.138 0.143 0.105 77.2 91.6 86.2 82.6 85.6 62.9 Comments: Checked By GEOCON Environmental Consultants, Inc. 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Sample I.D. No: 08605-06-01 Blank for samples taken 02/04/95 APPL Sample No: R19386-950208S Sample Date: NA Report Date: 02/10/95 Page 4 of 5 Date Received: NA Date Extracted: 02/08/95 Method 8150 Results (Herbicides): Compound Concentration mg/kcr Ouantitation limit ma/kg Dicamba 2,4-D 2,4-DB 2,4-DP (Dichlorprop) 2,4,5-T 2,4,5-TP (Silvex) Dinoseb (DNBP) Dalapon MCPA MCPP ND* ND ND ND ND ND ND ND ND ND 0.04 0.20 0.40 0.20 0.04 0.04 0.10 2.0 40 40 * ND = None Detected Checked By V GEOCON Environmental Consultants, 6970 Flanders Drive San Diego, California 92121 Attn: Steven Ward Inc.Report Date: 02/10/95 Page 5 of 5 Project ID No: 08605-06-01 APPL Spike ID: R19386 18794S-18795S 18794SA Concentration Units: mg/kg SPIKES Method 8150 8150 8150 8150 8150 Analvsis Dicamba 2,4-DP 2,4-D Silvex 2,4, 5-T APPL Spike ID: R19386 Method 8150 8150 8150 8150 8150 Analysis Dicamba 2,4-DP 2,4-D Silvex 2, 4, 5-T Date 02/08/95 02/08/95 02/08/95 02/08/95 02/08/95 18794S- Date 02/08/95 02/08/95 02/08/95 02/08/95 02/08/95 Amt in Sample 0.0 0.0 0.0 0.0 0.0 18795S Amt in Sample 0.0 0.0 0.0 0.0 0.0 Amt Spiked 0.200 0.400 0.200 0.200 0.200 19794SB Amt Sniked 0.200 0.400 0.200 0.200 0.200 Results 0.176 0.505 0.248 0.236 0.241 Results 0.154 0.467 0.250 0.226 0.229 Percent Recoverv 88.0 126 124 118 120 Percent Recovery 77.0 117 125 113 114 " RPD 13 7.8 0.8 4.3 5.1 RPD 13 7.8 0.8 4.3 5.1 Comments: Checked By CHAIN-OF-CUSTODY RECORD Date . fccb'Mg'V fl+page.of <o<\~)b Dr. Project: Sg Sampler (sign Analysis Requested Ooo O CP 0 Lo CP nersNo. of conComments Sample No.Dale 2-4-^5" Time Location ice Geocon J36i3L Z-H-^5" Storage/Shipping Info.:vi-a Fedey;z Total No. of containers RELINQUISHED BY RECEIVED BY RELINQUISHED BY RECEIVED BY RELINQUISHED BY Eg^JVED BY Signature Signature Signature Printed Name Printed Namis Printed Name Printed NameAwt Company Company Compan Time Dale Trune Dale /Time Date Time Company &Time APPENDIX B p H SOIL-TO-AIR VOLATILIZATION FACTOR DDT VF(m3/kg) = (LS x V x DH) x (3.14 x a x TV* A (2 x Dei x Pa x K^IO'3 kg/g) where: Parameter Definition Value VF volatilization factor (m'/kg) # LS length of side of contaminated area (m) 176 m** V wind speed in mixing zone (m/s) 2.25 m/s* DH diffusion height (m) 2 m* A area of contamination (cm2) 9.312 x 107** T exposure interval (s) 7.9 x 10s* D.I effective diffusivity (cnr/s) D^P,3-33/?,2) = .00329 Pa air filled soil porosity (unitless) Pt-9B = .284 D; diffusivity in air (cnr/s) 0.041* P, total soil porosity (unitless) l-^Ae.) = .434 fi soil bulk density (g/cm3) 1.5 g/cm3* C, true soil density or particle density (g/cm3) 2.65 g/cm3* 6 soil moisture content (cm3-water/g-soil) 0.1* K,, soil/air partition coefficient (g soil/cm3 air) (H/KJ x 41 = 2.3712 x 10'8 H Henry's law constant (atm-nvVmol) 4.5E'5S P. true soil density or paniculate density (g/cm3' 2.65 g/cm3* Kd soil-water partition coefficient (cm3/g) K,,,. x OC = 77809 KO,. organic carbon partition coefficient (cnrVg) log'1(6.59)$ OC organic carbon content of soil (fraction) 0.02* a = ajP, = f.00329)f.284) P, + [(Q.X1-PJ/KJ -284 + [(2.65)(l-.284)/2.3712 x la8] 1.1677xlO-n VF = fl76y2.25V2W3.14V 1.1677 x 1Q-UV7.9 x IQ'W2 (9.312 x 107)(2)(.00329)(.284)(2.3712 x 10'8)(10-3) VF = 3.267 x 107 # = Volatilization factor equation obtained from "Region IX Preliminary Remediation Goals (PRGs)" Second Half, 1994. * = Default values obtained from "Region IX Preliminary Remediation Goals (PRGs)" Second Half, 1994. $ = Chemical-specific values obtained from U.S. EPA Environmental Research Lab, Athens, Georgia, 1995. ** - Site-specific values PEF(m3/kg) = where: Parameter PEF LS V DH A 0.036 G Umu, F(x) PARTICULATE EMISSION FACTOR (PEF) 1000 g/kgLS x V x DH x 3600 s/hr x A 0.036 x (1-G) x x F(x) Definition funits^) paniculate emission factor (m3/kg) width of contaminated area (m) wind speed in mixing zone (m/s) diffusion height (m) area of contamination (m2) respirable fraction (g/m2-hr) fraction of vegetative cover (unitless) mean annual wind speed (m/s) equivalent threshold value of wind speed at 10 m (m/s) function dependent on Um/Ut (unitless) Value 176 m** 2.25 m/s* 2m* 9312 m2** 0.036 g/irf-hr* 0** 4.5 m/s* 12.8 mg/s* 0.0497* PEF = fl76¥2.25¥2V3600¥lQQQ^ (9312)(.036)(1)(4.5/12.8)3(.0497) PEF = 3.94 x 10' m3/kg © ** _ Particulate emission factor (PEV) equation obtained from "Risk Assessment Guidance for Superrund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk- based Preliminary Remediation Goals." Default values obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals." Site-specific values obtained from "Tentative Map for Seapointe Resort," prepared by O'Day Consultants, dated March 14, 1994. COMMERCIAL/INDUSTRIAL SOIL - CARCINOGENIC EFFECTS INDIVIDUAL LIFETIME CANCER RISK DDT RISK = SF. x C x IP"* kg/me x EF x ED x IR... + SF: x C x EF x ED x IR,:. x (1/VF + 1/PEF) BW x AT x 365 BW x AT x 365 where: Parameters Definition (units) Value Risk excess individual lifetime cancer risk — @ C chemical concentration in soil (mg/kg) .0569** SF; inhalation cancer slope factor (mg/kg-day)"1 .34* SF0 oral cancer slope factor (mg/kg-day)"1 .34* BW adult body weight (kg) 70* AT averaging time (yr) 70* EF exposure frequency (days/yr) 250* ED exposure duration (yr) 25* soil ingestion rate (mg/day) 50* workday inhalation rate (nWday) 20* VF soil-to-air volatilization factor (nrVday) 3.267 x 107 PEF particulate emission factor (nvVkg) 3.94 x 109 RISK = r(.34)(.05698)(10"<i)('250)(25)(50)1 + r(.34)(.0569)(250)(25¥2Q) (1/3.267 x 1Q7 + 1/3.94 x IP9)! (70)(70)(365) RISK = 3.43 x 10"9 @ = Risk equation obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals)." * = IRIS, 1995 * = Default values obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals." ** = Site-specific values obtained from soil sampling and laboratory analysis. APPENDIX C *P \m C «• t SOIL-TO-AIR VOLATILIZATION FACTOR DDE VF(m3/kg) = where: Parameter VF LS V DH A T C.e H P, K, K^ OC (LS x V x DH) A Definition (3.14xaxTV/2 (2 x Dei x P, x K^IO'3 kg/g) volatilization factor (mVkg) length of side of contaminated area (m) wind speed in mixing zone (m/s) diffusion height (m) area of contamination (cm2) exposure interval (s) effective diffusivity (cnr/s) air filled soil porosity (unitless) diffusivity in air (cnr/s) total soil porosity (unitless) soil bulk density (g/cm3) true soil density or particle density (g/cm3) soil moisture content (cm3-water/g-soil) soil/air partition coefficient (g soil/cm3 air) Henry's law constant (atm-m3/mol) true soil density or particulate density (g/cm3) soil-water partition coefficient (cm3/g) organic carbon partition coefficient (cm3/g) organic carbon content of soil (fraction) Value # 176 m** 2.25 m/s* 2m* 9.312 x 107** 7.9 x 108* Di(Pa 3-33/Pf) = .00361 Pt-9fi = .284 0.045s l-(fi/e.) = .434 1.5 g/cm3* 2.65 g/cm3* 0.1* (H/KJ x 41 = 4.1327 x 10-' 8.8E-" 2.65 g/cm3* K, x OC = 87303 log'1(6.64)J 0.02* D.;p,(.Q0361)(.284) P, + [(Q.X1-PJ/KJ .284 + [(2.65)(I-.284)/4.1327 x Itf9] 2.233 x 10-12 VF = (1761(2.251(2)^3.14V2.233 x 1Q-':V7.9 x 10*)11P- (9.312 x 10T)(2)(.00361)(.284)(4.1327 x 10-9)(10-3) VF = 7.470 x 107 # = Volatilization factor equation obtained from "Region IX Preliminary Remediation Goals (PRGs)" Second Half, 1994. * = Default values obtained from "Region IX Preliminary Remediation Goals (PRGs)" Second Half, 1994. $ = Chemical-specific values obtained from U.S. EPA Environmental Research Lab, Athens, Georgia, 1995. PEF(m3/kg) = where: Parameter PEF LS V DH A 0.036 G U. F(x) PARTICULATE EMISSION FACTOR (PEF) 1000 g/kgLS x V x DH x 3600 s/hr x A 0.036 x (1-G) x (U../U,)3 x F(x) Definition (units') particulate emission factor (m3/kg) width of contaminated area (m) wind speed in mixing zone (mis) diffusion height (m) area of contamination (m2) respirable fraction (g/m2-hr) fraction of vegetative cover (unitless) mean annual wind speed (m/s) equivalent threshold value of wind speed at 10 m (m/s) function dependent on Um/Ut (unitless) Value @ 176 m** 2.25 m/s* 2m* 9312 m2** 0. 0** 4.5 m/s* 12.8 mg/s* 0.0497* PEF = d76V2.25¥2V3600)flQOO) (9312)(.036)(1)(4.5/12.8)3(.0497) PEF = 3.94 x 109 m3/kg ** — Particulate emission factor (PEV) equation obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk- based Preliminary Remediation Goals." Default values obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals." Site-specific values obtained from "Tentative Map for Seapointe Resort," prepared by O'Day Consultants, dated March 14, 1994. COMMERCIAL/INDUSTRIAL SOIL - CARCINOGENIC EFFECTS INDIVIDUAL LIFETIME CANCER RISK DDE RISK = SF. x C x IP"6 x EF x ED x IR..., + SE x C x EF x ED x IR.;. x (1/VF + 1/PEF) BW x AT x 365 BW x AT x 365 where: Parameters Definition (units) Value Risk excess individual lifetime cancer risk C chemical concentration in soil (mg/kg) .0538** SF; inhalation cancer slope factor (mg/kg-day)"1 .34* SF0 oral cancer slope factor(mg/kg-day)'' .34* BW adult body weight (kg) 70* AT averaging time (yr) 70* EF exposure frequency (days/yr) 250* ED exposure duration (yr) 25* soil ingestion rate (mg/day) 50* workday inhalation rate (m3/day) 20* VF soil-to-air volatilization factor (nrVday) 7.470 x 107 PEF paniculate emission factor (m3/day) 3.94 x 109 RISK = IY.34¥.0538¥1Q-<>¥250)(25X50)1 + r(.34X.Q5381(250¥25X20) (1/7.47 x 107 + 1/3.94 x 10*11 (70)(70)(365) RISK = 3.21 x 10"9 = Risk equation obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals)." IRIS, 1995 = Default values obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals." = Site-specific values obtained from soil sampling and laboratory analysis. APPENDIX D VF (mVkg) = where: Parameter SOIL-TO-AIR VOLATILIZATION FACTOR TOXAPHENE G.UxaxT)"2(LS x V x DH) x A (2 x Dei x Pa x Definition kg/g) Value VF LS V DH A T Dei P. DI P! fi 6.e K» H P. JSk<t *"Q0oc a = volatilization factor (m3/kg) length of side of contaminated area (m) wind speed in mixing zone (m/s) diffusion height (m) area of contamination (cm2) exposure interval (s) effective diffusivity (cnvVs) air filled soil porosity (unitless) diffusivity in air (cnr/s) total soil porosity (unitless) soil bulk density (g/cm3) true soil density or particle density (g/cm3) soil moisture content (cm3-water/g-soil) soil/air partition coefficient (g soil/cm3 air) Henry's law constant (atm-m3/mol) true soil density or particulate density (g/cm5 soil-water partition coefficient (cm3/g) organic carbon partition coefficient (cm3/g) organic carbon content of soil (fraction) D.= P- = (9.31 17 x # 176 m** 2.25 m/s* 2m* 9.312 x 107** 7.9 x 10s* D,(P,3-33/Pf) = 9.312 x 1O4 P.-GB = .284 1.1 6E-* 1-05/Q.) = .434 1.5 g/cm3* 2.65 g/cm3* 0.1* (H/KJ x 41 = 4.9098 x 10^ 4.89E'31 2.65 g/cm3* K« x OC = 408.35 10^(4.3 1)$ 0.02* 10-4¥.284) P. + [(eJd-PJ/KJ .284 + [(2.65)(l-.284)/4.9098 x 1Q4] 6.8426 x lO'8 VF = fl76¥2.25V2)f(3.14¥6.8426 x 10'8¥7.9 x IP8)!"2 (9.312 x 107)(2)(9.3117 x 10'4)(.284)(4.9098 x 10-4)(10°) VF = 4.267 x 105 # = Volatilization factor equation obtained from "Region IX Preliminary Remediation Goals (PRGs)" Second Half, 1994. * = Default values obtained from "Region IX Preliminary Remediation Goals (PRGs)" Second Half, 1994. $ = Chemical-specific values obtained from U.S. EPA Environmental Research Lab, Athens, Georgia, 1995. ** - Site-specific values PEF(m3/kg) = where: Parameter PEF LS V DH A 0.036 G Umu, F(x) PARTICULATE EMISSION FACTOR (PEF) 1000 g/kgLS x V x DH x 3600 s/hr x A 0.036 x (1-G) x (Um/U,)3 x F(x) Definition (units) participate emission factor (m3/kg) width of contaminated area (m) wind speed in mixing zone (m/s) diffusion height (m) area of contamination (m2) respirable fraction (g/m2-hr) fraction of vegetative cover (unitless) mean annual wind speed (m/s) equivalent threshold value of wind speed at 10 m (m/s) function dependent on Um/Ut (unitless) Valu 176 m** 2.25 m/s* 2m* 9312m2** 0.036 g/niMir* 0** 4.5 m/s* 12.8 mg/s* 0.0497* PEF = fl76V2.25¥2V3600Vl(XX» (9312)(.036)(1)(4.5/12.8)3(.0497) PEF =3.94 x 10' m3/kg ** Paniculate emission factor (PEV) equation obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk- based Preliminary Remediation Goals." Default values obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals." Site-specific values obtained from "Tentative Map for Seapointe Resort," prepared by O'Day Consultants, dated March 14, 1994. CANCER RISK FROM DERMAL INTAKE OF TOXAPHENE IN SOIL RISKD = INTAKE (mg/kg/day) x q* = CS x CF x SA x ABS x EF x ED x q* BWx AT where: Parameters Definition RISKD cancer risk from dermal exposure (unitless) Intake average daily dose of toxaphene (mg/kg-day) CS toxaphene concentration in soil (mg/kg) CF conversion factor (mg/kg) SA surface area of skin exposed to soil (cm2 skin/day) AF adherence factor of soil to skin (mg soil/cm2 skin) ABS fraction of soil-borne toxaphene absorbed (unitless) EF exposure frequency (days/year) ED exposure duration (years) BW body weight (kg) AT averaging time q* dermal cancer slope factor (mg/kg/day)'1 Value @ 1.245 mg/kg** 10-* kg/mg* 360 cm2 skin/day* 0.1 mg soil/cm2 skins 0.1* 250 days/year* 25 years* 70kg* 70 years* 1.1* RISKD . 1¥0. 1V25) (70)(70) 2.29 x 10'7 mg/kg/day x 1.1 (mg/kg/day)-1 2.3 X 10-7 @ ** _ * = Intake equation obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part A)" Default values obtained from California Environmental Protection Agency, Office of Scientific Affairs, Ecological and Human Risk Section. Default values obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part A)" Site-specific values obtained from soil sampling and laboratory analysis. IRIS, 1995. COMMERCIAL/INDUSTRIAL SOIL - CARCINOGENIC EFFECTS INDIVIDUAL LIFETIME CANCER RISK TOXAPHENE RISK = SF. x C x IP"* x EF x ED x IR.^. + SE x C x EF x ED x IR.:r x H/VF + 1/PEF~> BW x AT x 365 BW x AT x 365 where: Parameters Risk C SF; SF8 BW AT EF ED IR^a IR* VF PEF RISKD RISK = ffl. RISK TOTAL RISK Definition excess individual lifetime cancer risk chemical concentration in soil (mg/kg) inhalation cancer slope factor (mg/kg-day)"1 oral cancer slope factor (mg/kg-day)'1 adult body weight (kg) averaging time (yr) exposure frequency (days/yr) exposure duration (yr) soil ingestion rate (mg/day) workday inhalation rate (m3/day) soil-to-air volatilization factor (nrVkg) particulate emission factor (nrVkg) cancer risk from dermal exposure (unitless) ,1V1.245V10-6)(250)(25¥50)1 + \(l . 1¥1 .245)(250V25¥20) (1/4.267 x (70)(70)(365) 4.64 x 10-7 RISK + RISKD Value -@ 1.245** 1.1* 1.1* 70* 70* 250* 25* 50* 20* 4.267 x 103 3.94 x 109 2.3 X lO'7 105 + 1/3.94 x 10»)1 ** 4.64 x ID"7 + 2.3 X 10-7 6.94 x 10"7 = Risk equation obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals)." IRIS, 1995 = Default values obtained from "Risk Assessment Guidance for Superfund: Volume 1 - Human Health Evaluation Manual (Part B, Development of Risk-based Preliminary Remediation Goals." = Site-specific values obtained from soil sampling and laboratory analysis.