Loading...
The URL can be used to link to this page
Your browser does not support the video tag.
Home
My WebLink
About
CT 12-01; Miles Pacific Subdivision; Property Mitigation Plan; 2014-04-30
ELIZABETH A. POZZEBON DEPARTMENT OF ENVIRONMENTAL HEALTH AMY HARBERT ACTING DIRECTOR ^^^^^ Xim^\0^ 'ACTING ASSISTANT DIRECTOR P 0. BOX 129261, SAN DIEGO, CA 92112-9261 Phone: (858) 565-5173 Fax: (858) 694-3670 www.sdcdeh.org May 21, 2014 Ms. Sarah Morrell Shea Homes Limited Partnership 9990 Mesa Rim Road San Diego, California 92121 Dear Ms. Morrell: VOLUNTARY ASSISTANCE PROGRAM #DEH2013-LSAM-000194 MILES PACIFIC SUBDIVISION C"^ \Z'0\ 2372 AND 2375 PIO PICO DRIVE CARLSBAD, CALIFORNIA 92008 Staff of the County of San Pie^o, Department of Environmental Health (DEH), Site Assessment and Mitigation IPj;5gtaiJT (SAM), reviewed the Property Management Plan (SMP) for the above-referenced property, (^^fhe PMP, dated April 30, 2014, was prepared by GeoSoils, Inc. (GSI), and uploaded to GeoTrackertjrrMay 5, 2014. A 5.4-acre property, located east of lnterstate-5 and north of Las Flores Drive in Carlsbad, California, Is scheduled for redevelopment as a 17-lot residential subdivision. One-and-two story, slab-on-grade construction is planned for the single-family residences. As described in a Phase I environmental site assessment report and a limited Phase II investigation report (GSI, 2011), the property has been used for agricultural purposes since at least 1939. Nurseries are reported to have operated on the premises since the mid-1970s to the present. Greenhouses and canopied growing areas have occupied the property at various times over the last 40 years. A residence was constructed on the property prior to 1953 but has been demolished in anticipation of the proposed residential construction. Soil sampling was performed during the 2011 limited Phase II investigation at the property that involved the collection of 36 soil samples from a maximum depth of 4.5 feet below ground surface (bgs) at randomly-selected locations. Each of the soil samples was analyzed for organochlorine pesticides (OCRs). An additional six soil samples were collected in December 2013 for OCP analysis to further characterize the eastern portion of property where the highest concentrations of OCRs had been previously detected. The OCRs aldrin, 4,4'-DDE, 4,4'-DDT, and toxaphene were detected in the soil samples. The maximum detected concentrations of aldrin, 4,4'-DDE, and 4,4'-DDT were less than 0.5 milligrams per kilogram (mg/kg). None of the detected concentrations of these OCPs exceeded their respective residential California Human Health Screening Levels (CHSSLs). However, toxaphene was detected 29 of the 42 soil samples at concentrations ranging from 0.15 to 18 mg/kg. Toxaphene concentrations detected in 25 samples equaled or exceeded its residential CHHSL of 0.460 mg/kg. "Environmental and public health through leadership, partnership and science" Ms. Sarah Morrell -2- May 21, 2014 Current plans for the 17-lot subdivision include the construction of an access road from Pio Pico Drive. The access road would extend westward and end in a cul-de-sac, with one side-street extending southward and terminating near the southern property line. According to the PMP, the upper two to 3 feet of existing, toxaphene-impacted soil at the property would be removed and stockpiled onsite. GSI estimates that the volume of excavated impacted soil would be 20,000 cubic yards (yd^). Soil with toxaphene concentrations less than its CHHSL ("clean" soil) would then be excavated from proposed front yards and street right-of-ways, resulting in one large (22,000 yd^) excavation with a maximum depth of 21 feet below finished grade of the proposed streets. The toxaphene-impacted soil would then be placed in the large excavation. The "clean" excavated soil would be stockpiled onsite for subsequent use as a minimum 7-foot-thick cap over the toxaphene-impacted soil. Utilities would require an additional two feet of cap material if installed at a depth of greater than 5 feet below finished grade. A geotextile fabric would be placed over the impacted soil as a marker. Confirmation soil samples would then be collected by GSI from each approximately 50 x 50-foot area over the base of the excavation to verify that detected toxaphene concentrations are less than its residential CHHSL. Confirmation samples would also be collected every 100 feet along the sidewalls of the excavation. The stockpiled "clean" soil property would then be placed in the large excavation, followed by surface grading and cap placement. An additional 15 verification soil samples would be collected from the cap surface to a depth of approximately 0.5 foot below finished grade. Finally, according to the Community Health and Safety Plan (CHSP) appended to the PMP, excavation, stockpiling, and grading activities would be performed to minimize con^munity and worker exposure to dust. With respect to dust, the County requires adherence to the Air Pollution Control District's Rule 55 ("Fugitive Dust Control"): "No person shall engage in construction or demolition activity...in a manner that discharges visible dust emission into the atmosphere beyond the property line for a period or periods aggregating more than 3 minutes in any 60-minute period." In addition, the CHSP dust mitigation protocol states that soil on the property would be pre-moistened prior to disturbance. Also, perimeter air monitoring stations would be placed at three locations. Air samples would be collected at the stations prior to initiating earthwork at property to evaluate background conditions. During the initial three-to-four days of excavation and soil handling activities, samples would be collected from the stations and analyzed for toxaphene. Dust meters will also be placed at the stations to measure total dust generated by the construction activities. Subsequent sampling would be performed on a weekly basis until grading activities are completed, but only downwind samples would be submitted for laboratory analysis. The remaining samples would be archived for 30 days. The Property Management Plan (PMP) and appended Community Health and Safety Plan for grading operations at the property are approved. Please call me at (858) 505-6896 if you have any questions concerning this review. Sincerely, CAROL A. FENNER, P.G. #7223 Project Manager Site Assessment and Mitigation Program cc: John Franklin, GSI PROPOSED 1 -07, AND -08 COUNTY OF SAN DIEGO DEPARTMENT OF ENVIRONMENTAL HEALTH LAND AND WATER OUALITY DIVISION SITE ASSESSMENT AND MITIGATION PROGRAM P.O. BOX 129261 SAN DIEGO, CALIFORNIA 92112-9261 W.O. E6649.1-SC APRIL 30, 2014 MAY 0 8 ZOih Geotechnical • Geologic • Coastal • Environmental 5741 Palmer Way • Carlsbad, California 92010 • (760)438-3155 • FAX (760) 931-0915 • www/.geosoiisinc.com April 30, 2014 W.O. E6649.1-SC County of San Diego Department of Environmental Health Land and Water Quality Division Site Assessment and Mitigation Program P.O. 60x129261 San Diego, California 92112-9261 Attention: Ms. Carol Fenner Subject: Property Mitigation Plan, Proposed 17 Lot Subdivision, APNs 156-351-03, -07, and -08, 2373 and 2375 Pio Pico Drive, Carlsbad, San Diego County, California 92010, Voluntary Assistance Case DEH2013-LSAM-000194 Dear Ms. Fenner: At the request and authorization of Shea Homes, and based upon our previous environnnental studies for the subject property (see Appendix A), GeoSoils, Inc. (GSI) has prepared this Property Mitigation Plan (PMP) for organochlorine pesticide impacted soil, utilizing the preliminary grading plansforthe proposed 17-lot subdivision (see Appendix A) on the subject property in Carlsbad, San Diego County, California, hereafter referred to as "the site" (see Figure 1). The scope of our worl< has included a review of the referenced documents in Appendix A, analysis of data, and preparation of this property mitigation plan. PROPOSED DEVELOPMENT The subject site consists of three relatively vacant parcels, and a single story residential building, totaling about 5.4 Acres, located west of Pio Pico Drive and east ofthe Interstate 5 freeway in Carlsbad, San Diego County, California (see Figure 1, Site Location Map). The site is bounded by existing residential development and Pio Pico Drive to the east, by the Interstate 5 freeway to the west, and by existing residential development to the remaining quadrants. The physical address of the site is 2373 and 2375 Pio Pico Drive. According to the 30-scale tentative map prepared by bHA, Inc., site elevations range between approximately 82 to 110 feet NAVD29. Topographically, the site is generally flat- lying to very gently sloping in a southwesterly direction. The overall gradient of the site is on the order of 16:1 (horizontal:vertical [h:v]). Near the western margin of the site, an approximately 33-foot high cut slope descends toward the Interstate 5 freeway. The overall gradient of this slope Is approximately 1.9:1 (h:v). Base Map; TOPO!® ©2003 National Geographic, U.S.G.S San Luis Rey Quadrangle, Ca//fom/a ~ San Diego Co., 7.5 Minute, dated 1997, cunent, 1999. ' SITE I NOT TO SCALE Base Map; Google Maps, Copyright 2014 Google, Map Data Copyright 2014 Google TTils map to copyrtpMad by GODS'* 2014. Mhunlmfti/to eopyornpnduc»illorinyp»rtllm»ol, whtthtrfor penomi mt or nuh, without potmlmlon. AK rlgMs W.O. E6649-SC SiTE LOCATION MAP Figure 1 Based on a review of bHA, Inc. (2012), proposed development will consist of preparing the site for the construction 17 new single-family residences, with associated infrastructure (e.g., underground utilities, streets, sidewalks, etc.). Cut and fill grading techniques will be necessary to achieve the design grades with maximum planned cuts and fills on the order of ±6V2 and ±6 feet respectively. Grade differentials will be accommodated by the construction of graded 2:1 (h:v) or flatter cut and fill slopes and concrete masonry unit (CMU) retaining wall. The maximum heights of graded cut and fill slopes shown on bHA, Inc. are approximately ±6 feet and ±8 feet, respectively. The maximum height of CMU retaining walls is approximately ±5V2 feet. Storm water will be directed into two detention basins near the western margin ofthe site, priorto introduction into the regional system in the existing brow ditch on the cut slope descending to Interstate 5. Sanitary sewerage disposal is anticipated to be tied into the municipal system. Plate 1 has been adapted from the 30-scale Remedial Grading Exhibit, Toxaphene Removal & Replacement, prepared by bHA, Inc. ([bHA] 2012), as a base. BACKGROUND Based upon our review of our update environmental site assessments (GSI; 2014, 2011 a and 2011 b), most ofthe site appears to have been utilized for agriculture from at least 1963 until the present. The type of agriculture was primarily a palm tree nursery. Based upon our current and previous chemical testing of near-surface soils onsite (GSI; 2014, 2011a and b), detectable concentrations of restricted agricultural residues exist within the subject property. Previous analytical test results identified the presence of the organochlorine pesticide toxaphene at concentrations that exceed the California Human Health Screening Levels (CHHSLs) for residential soils. Other pesticides constituents, including Aldrin, DDE, and DDT were identified on the site, but were detected at concentrations below the residential CHHLSs. SUPPLEMENTAL ORGANOCHLORINE SOIL SAMPLING A total of 36 soil samples were obtained in 2011. These are summarized in GSI (2011 a), which, along with GSI (2011 b), were reviewed by the County of San Diego Department of Environmental Health (CSDDEH). At a meeting in October of 2013, CSDDEH indicated that some more sampling was warranted in the eastern margin of the site where the highest concentrations of toxaphene were previously encountered. Thus, the collection of six soil samples from three locations in that area for analysis of organochlorine pesticides was performed, bringing the total to 42 samples. On December 20, 2013, GSI was onsite to collect surficial soil samples for the supplemental chemical analyses within the eastern margin ofthe proposed development. Laboratory testing was conducted to evaluate if analytical test results for organochlorine Shea Homes W.O. E6649.1-SC 2373 and 2375 Pio Pico Dr., Carlsbad . April 30,2014 File:e:\wp12\env\e6600\e6649.1.pmp GcoSoils, InC. Page 3 pesticides concentrations were above CHHSLs levels for residential development in that area. The soil samples were obtained at depths below existing grade of 6 to 12 inches, and 2 feet. The location of these samples is shown on Plate 1. Test holes were excavated utilizing a hand auger. Samples were collected, stored, and transported to a California Department of Health Services (DHS) certified laboratory the next day, typically following quality assurance/quality control procedures (QA/QC) during all soil sampling activities. To minimize the chance of cross-contamination between samples, all sampling equipment was decontaminated prior to use in the following manner: 1. Wash with water and Alconox solution. 2. Rinse twice with distilled water. A Chain-of-Custody record was recorded with the laboratory and Is included in the laboratory report in Appendix B. LABORATORY CHEMICAL TEST RESULTS Initial chemical testing was performed on samples collected in the upper 8 to 10 inches of soil below existing grade, and deeper, as discussed herein. Except for Aldrin, DDE, DDT, and Toxaphene, no constituents of the Chlorinated Pesticides were reported above the laboratory detection limits (i.e., non-detect). In the upper 8 to 12 inches of depth, concentrations of Aldrin ranging from 0.0054 to 0.0056 mg/l<g, DDD ranging from 0.0058 mg/l<g to 1.6 mg/kg, DDT ranging from 0.0021 mg/kg to 1.3 mg/kg, and Toxaphene ranging from 0.160 mg/kg to 18 mg/kg were encountered. For comparison purposes, the California Human Health Screening Levels ([CHHSL] 2005), developed by the California Environmental Protection Agency (Cal/EPA, 2005), uses generally accepted exposure factors to estimate chemical concentrations in soil or soil gas that are below thresholds of concern for risks to human health, including a cancer risk to humans greater than one-in-one million (i.e., 1 x 10-6), and a hazard quotient of 1.0 for non-cancer effects (a hazard quotient of one or less is generally considered "safe"). The CHHSLs are: 0.033 mg/kg for Aldrin, 1.60 mg/kg for DDE and DDT, and 0.460 mg/kg for Toxaphene. Based on the above reported concentrations, soils sampling and laboratory testing were conducted at increasing depths (as discussed above). The results ofthe laboratory data are presented in the following tables. Analytical laboratory data reports are provided in Appendix B. Shea Homes W.O. E6649.1-SC 2373 and 2375 Pio Pico Dr., Carlsbad r- c 'l I April 30,2014 File:e:\wp12\env\e6600\e6649.1.pmp GCOSOllS, IllC. Page 4 SUMMARY OF ANALYTICAL RESULTS -2011 SAMPLES SAMPLE ID DATE COLLECTED DDE mg/kg DDT mg/kg TOXAPHENE mg/kg S-1 @ 8-10" 4-22-11 0.075 ND 1.4* S-1 (ffi 1' 5-20-11 0.019 ND 0.350 S-2 @ 8-10" 4-22-11 0.023 ND ND S-3 @ 8-10" 4-22-11 0.069 0.350 3.4* S-3 (ffi 1' 5-20-11 0.086 0.170 4.9* S-3 @ 2' 5-20-11 0.310 0.550 9.9* S-3 @ 3' 7-9-11 0.055 0.021 0.160 S-4 (ffi 8-10" 4-22-11 0.047 ND 0.460 S-5 @ 8-10" 4-22-11 1.6 0.760 9.0* S-5 @ r 5-20-11 0.250 0.200 2.1* S-5 @ 2' 5-20-11 ND ND ND S-6 (ffi 8-10" 4-22-11 0.0058 ND ND S-7 @ 8-10" 4-22-11 0.380 0.910 10.0* S-7 (ffi 2' 5-20-11 ND ND ND S-8 @ 8-10" 4-22-11 0.320 1.3 15.0* S-8 (ffi 2' 5-20-11 ND ND ND S-9 @ 8-10" 4-22-11 0.220 0.950 9.0* S-9 @ 2' 5-20-11 ND ND ND S-10 @ 8-10" 4-22-11 0.130 0.420 5.4* S-10 (ffi 2' 5-20-11 ND ND ND S-11 (ffi 8-10" 4-22-11 0.160 0.300 4.5* S-11 @ 2' 5-20-11 ND ND 0.150 S-12 @ 8-10" 4-22-11 0.054 0.340 4.6* S-12 @2' 5-20-11 ND ND ND S-13 @ 8-10" 4-22-11 0.280 0.380 4.6* S-13 @ 2' 5-20-11 0.035 ND 0.290 S-14 (ffi 8-10" 4-22-11 0.150 0.160 1.9* S-14 @ 2' 5-20-11 0.009 ND 0.150 S-15 (ffi 8-10" 4-22-11 0.180 0.200 1.9* S-15 (ffi 2' 5-20-11 ND ND ND Shea Homes 2373 and 2375 Pio Pico Dr., Carlsbad File:e:\wp12\env\e6600\e6649.1.pmp GeoSoils, Inc. W.O. E6649.1-SC April 30, 2014 Page 5 SUMMARY OF ANALYTICAL RESULTS - 2011 SAMPLES SAMPLE ID DATE COLLECTED DDE mg/kg DDT mg/kg TOXAPHENE mg/kg S-16 (ffi 8-10" 4-22-11 0.280 0.390 5.1* S-16 (ffi 2' 5-20-11 0.0094 ND ND S-17 (ffi 8-10" 4-22-11 0.066 0.280 4.4* S-17 (ffi 2' 5-20-11 ND ND ND S-18 @ 8-10" 4-22-11 0.180 0.280 3.6* S-18 @ 2' 5-20-11 ND ND ND ected above 0.460 mg/kg (CHHSL threshold) for Toxaphene Parameter not detected atthe indicted reporting limit SUMMARY OF ANALYTICAL RESULTS - 2013 SAMPLES Sample ID Data Collected Aldrin mg/kg 4,4-DDE mg/kg 4,4-DDT mg/kg Toxaphene mg/kg 101 (ffi 6"-12" 12-20-2013 0.0056 0.270 0.450 15.0 101 @ 2' 12-20-2013 ND 0.240 0.16 0.670 102 (ffi 6"-12" 12-20-2013 0.0054 0.370 0.470 18.0 102 (ffi 2' 12-20-2013 ND 0.0092 ND ND 103 (ffi 6"-12" 12-20-2013 ND 0.190 0.280 16.0 103 @ 2' 12-20-2013 ND 0.022 0.015 0.920 CHHLs (Res) 0.033 1.6 1.6 0.46 ESTIMATED IMPACTED VOLUME OF TOXAPHENE Based on the site soil sampling to date, GSI estimates that less than approximately 20,000 cubic yards of soil exists on the site that are impacted with toxphane at concentrations above the CHHSLs of 0.460 micrograms per kilograms (mg/kg). Toxaphene concentrations exceeding the CHHSLs occur at various depths ranging from near the surface to a maximum known depth of 2 to 3 feet below existing ground surface. Based on the data, the estimated volumes are indicated on Plate 1, Soil Sample Location Map, Proposed Location of Toxaphene Affected Soils and Cross Sections of Proposed Location of Toxaphene Affected Soils, included herein. Shea Homes 2373 and 2375 Pio Pico Dr., Carlsbad File:e:\wp12\env\e6600\e6649.1.pmp GeoSoils, Inc. W.O. E6649.1-SC April 30, 2014 Page 6 SURFACE WATER AND GROUNDWATER According to the California Regional Water Quality Control Board - San Diego Region ([CRWQCB,1994), the subject property is located within the El Salto Hydrologic Subarea (HSA 4.21) of the Buena Vista Creek Hydrologic Area (HA 4.20) ofthe Carlsbad Hydrologic Unit (HU 4.00). The Carlsbad Hydrologic Unit falls within Region 9 (San Diego Region) of the State of California Regional Water Quality Control Board (CRWQCB) Hydrologic Basin Planning Area (SA 9.00). Groundwater within this area is designated as having beneficial uses for municipal and domestic supplies, agricultural supply, and potential beneficial use for industrial service supply (CRWQCB, 1994). Surface features normally associated with water wells were not observed during GSI's site reconnaissance. Based upon a review of the California Department of Water Resources Water Data Library (http://www.water.ca.gov/waterdatalibrary/), no water supply wells with available depth to water data are located within a 1-mile radius of the site. However, according to historic groundwater monitoring data available on the State Water Resources Control Board Geotracker website, depth to groundwater in the closest former groundwater monitoring well, located approximately 0.6 mile south of the site, was approximately 12.2 feet below ground surface. Groundwater flow direction was reportedly to the west. Based on topography, which is often indicative, but not always conclusive of groundwater flow direction, the regional groundwater flow direction is estimated to be generally to the west. Please note that many variables influence groundwater depth and flow direction, and the actual depth and direction at the site may be different than the estimates presented. No surface water was observed onsite during GSIs site reconnaissance, nor was any groundwater encounter during our geotechnical investigation of the site (GSI, 2012). GSI estimates that the regional groundwater table below the site is generallly coincident with sea level, or approximately ±82 feet below the lowest existing site elevation. SOIL PARAMETERS Field observations, sieve analysis (ASTM D422-63), and Atterberg Limits testing (ASTM D4318) performed on soils during our subsurface geotechnical evaluation ofthe subject property (GSI, 2012) indicated site soil within the former growing areas may be classified as silty sand near the surface (which will be removed and recompacted during grading), and sandy clay to clayey sand at depth, based upon the Unified Soil Classification System (USCS). Furthermore, the underlying paralic deposits are logged as becoming denser with depth. It is GSI's opinion that these soil types are generally uniform and do not vary significantly in texture and composition. Permeability of these primary soil types (sandy clay and clayey sand), and underlying sediments is typically low. Shea Homes W.O. E6649.1-SC 2373 and 2375 Pio Pico Dr., Carlsbad . April 30, 2014 File:e:\wp12\env\e6600\e6649.1.pmp GcoSoilS, InC. Page 7 PROPOSED ONSITE PESTICIDE MITIGATION Introduction All work will be performed in accordance with the requirements and protocols of the CSDDEH under the supervision of a California licensed engineer or professional geologist. Field activities will be conducted in accordance with a Community Health and Safety Plan (Appendix C) and Site Specific Health and Safety Plan (Appendix D). Location of Toxaphene GSI proposes that during the site grading the toxaphene impacted soil, above the site cleanup level of 0.460 mg/kg (residential CHHSL for toxaphene), will be excavated and stockpiled onsite. A map has been prepared with the estimated depth of toxaphene requiring removal on the property (see Plate 1). The anticipated maximum depth of excavation below existing ground surface ranges up to 3 feet. However, the majority ofthe excavation depth will be 2 feet below the existing ground surface. General Toxaphene Management Approach Subsequent to removal of all surface structures on the site, remedial grading will commence. Prior to the starting of grading, the site will be irrigated to infiltrate water into the soil to be removed. Given the nature of some ofthe site soils and the present condition of irrigation for agriculture activities onsite, soil moisture preparation is anticipated to extend about 2 to 3 feet into the subsurface. This will allow for movement of the soil with minimal dust generation during grading. As grading occurs, additional water will be added to the soil to further minimize dust and allow for the proper moisture for compaction of the fill materials. Based on GSI's experience with mass grading projects, typically, the site will be divided into two or three segments. GSI will recommend that the impacted soil be removed and stockpiled on the Site. Once this impacted soil is removed in this area, the clean soil will be removed to the desired depth. The clean soil is proposed to be stockpiled separately for use as capping. The areas that are proposed for placement of impacted toxaphene at or above the site cleanup level of 0.460 mg/kg are indicated on Plate 1. Cross sections are also provided on Plate 1. Once the excavation has reached the desired depth (as shown on Plate 1), the toxaphene impacted soil will be placed in the base of the excavation. That impacted soil will be placed up to a depth not to exceed 21 feet below the designed finished grade of the street and/or up to a depth of 2 feet below the lowest proposed utility; and, in residential areas, at a depth of at least 7 feet below finish grade. The top of the impacted soil will be covered by Mirafi 140 as a marker. In addition, based on the anticipated highest regional groundwater elevation of about Mean Sea Level (MSL), a minimum soil cap separation of Shea Homes ' W.O. E6649.1-SC 2373 and 2375 Pio Pico Dr., Carlsbad « -i i ^P'"'' ^^^^ File:e:\wp12\env\e6600\e6649.1.pmp GCOSOllS, InC. Page 8 at least 5 feet is easily attained. Once a grading contractor has been selected, GSI will need to review the contractors plan for movement of the impacted soil, and comment as necessary. Based on the approximate volume of 20,000 cubic yards of toxaphene impacted soil above the site cleanup level exist on the property, GSI has anticipated an excavation of approximately 22,000 cubic yards that are available for placement of impacted soil. Based on the planned available excavation, clearly there is sufficient space in these areas to accomplish this and more, should additional impacted soil, although unlikely, be encountered during site grading. GSI proposes to provide observations ofthe toxaphene impacted soil removal. Random representative soil samples will be collected from the base of the excavation in each segment excavated to verify that toxaphene has been removed to the site cleanup levels. Historic soil sample results will be used to guide the excavation depths in advance of verification sampling. Excavation verification sampling will consist of soil samples collected every 5,000 square feet in the impacted area to verify removals have been accomplished per the remedial objectives. GSI estimates about 50 samples will be collected from the removal bottoms, and every 100 feet in the sidewalls, or about another 25 samples. Once the remedial objectives have been achieved no further remedial excavation will occur in those areas. If toxaphene is detected above the site cleanup levels at any location, additional excavation will occur until the toxaphene is removed to the site cleanup level. Additional verification sampling will occur at that location to further confirm removal. All samples will be collected from the excavation surface with a hand auger to a depth of 6 inches, once the target depth is reached as indicated on Plate 1. Samples will be stored into cold storage under chain of custody and transported to a California Department of Health Services (DHS) certified laboratory the next day, following quality assurance/quality control procedures (QA/QC) during all soil sampling activities. All samples will be analyzed for organochorine pesticides by EPA Test Method 8081 A. Once the impacted soil has been removed and all verification samples confirm no further removal is necessary, the removed soil will be properly stockpiled in a designated area and/or placed directly into a excavation area designed for impacted soil placement. The excavation will be expended to the size necessary for placement ofthe impacted soil and required clean fill cap. Plate 1 provides a map ofthe locations where the impacted soil will be placed on the property. At all locations, a clean cap will exist containing no pesticides above the site cleanup levels. An as-built map will be prepared indicating the locations and depth of impacted soil placed on the property and included in a final closure report. Monitoring Program While handling the toxaphene impacted soil during excavation, stockpiling, and backfilling operations, a monitoring program will be in place to control impacted soil migration offsite Shea Homes ~~ W.O. E6649.1-SC 2373 and 2375 Pio Pico Dr., Carlsbad « -i i April 30,2014 File:e:\wp12\env\e6600\e6649.1.pmp GCOSOilS, InC. Page 9 via aerial suspension, stormwater run-off, or attachment to equipment leaving the property. GSI proposes to utilize the following controls to minimize the spread of toxaphene offsite: • During excavation and stockpiling activities, copious amounts of water must be applied to the soil prior to and during grading in order to suppress dust particles from becoming air-borne. Additionally, toxaphene impacted soil must not be disturbed if winds exceed about 13 miles per hour (mph). All stockpiled soils must be covered with heavy grade plastic sheets while water suppression is not employed, particularly during non-working hours. • To reduce worker exposure to contaminated dust, all heavy equipment should have closed cabs with positive pressure fans. If open air cabs are used, the full face respirators with NIOSH N100, R100, or PI00 filter cartridges should be used. To ensure that impacted soil is not carried offsite, all vehicles and equipment should be inspected prior to exiting the site. If significant amounts of soil are trapped within the tries or under-carriage of vehicles, the soil should be removed prior to the vehicle exiting the site. During and at the end of each day any soil deposited on Pio Pico Drive, outside the exit ofthe site, will be swept up and returned to the property for onsite management. • If site development is required during rainy periods, care should be taken to minimize the negative effects. The City may recommend that no work be conducted when the potential for rain is above 40 percent. Educated judgment should be used to assess the significance of potential rainfall event and how it might affect the remedial grading activities. If a significant rainfall event is anticipated or occurs during construction operations, necessary measures must be taken to minimize erosion of stockpiles and limit soil erosion from offsite migration. A Storm Water Pollution Prevention Plan (SWPPP) should be prepared for the site. In addition to actions taken to mitigate the spread of toxaphene to the surrounding neighborhood, the following controls should be in place to ensure community safety and compliance with City ordinances: The site will be fenced and gated, limiting access to only those authorized. Equipment operations times will be dictated by the City of Carlsbad Zoning Ordinances. Except to the west, the site is mostly surrounded by residential neighborhoods. It is anticipated that noise may be an issue which will require some level of cooperation between the developer and the surrounding neighborhoods. • Given the size ofthe excavations, they will need to remain open over-night. Proper safety will need to be in place, such as safe side slope and at least one open end to easy access into and out of the exaction. Efforts should be in place to backfill Shea Homes ~ W.O. E6649.1-SC 2373 and 2375 Pio Pico Dr., Carlsbad r- C '1 I April 30,2014 File:e:\wp12\env\e6600\e6649.1.pmp GCOSOilS, InC. Page 10 excavations as soon as possible after completion. If not backfilled, excavations for the entire site should be fenced off to prevent public access at the end of each work day. As an added level of verification following the completion of remedial activities and site grading, representative soil samples will be collected from 15 random locations throughout the site. Soil samples will be collected from the shallow subsurface at depths of 0 to 3 feet below ground surface below the designed finished grade and analyzed for residual pesticides using EPA Test Methods 8081 A. Verification sample results from the surface will be used to evaluate that no pesticides impact above site cleanup levels exist within the fill to be in contact with occupants and construction workers. Final Remediation Summary Report Upon completion of the remedial site grading a summary report will be prepared to document all activities completed onsite. This report will provide a description of how the excavation was completed to remove the toxaphene impact to soil above the site cleanup levels. A map showing the locations of removal verification samples and any re-testing required will be attached to this report. Table and hard copies of all analysis will be included used to evaluate removal to the cleanup levels. To document where impacted soils exist an "As-Built" map will be included in this report with elevations. This map will provide documentation that the impacted soil cap is at least 10 and 7 feet in thickness over impacted soil above the site cleanup level, for street right- of-ways and residential areas, respectively. Included in the report will be any additional cross sections and text necessary to document the removal and placement was in accordance with the approved PMP, as warranted. COMMUNITY HEALTH AND SAFETY PLAN A site specific Community Health and Safety Plan has been prepared for this project and is attached in Appendix C. The area surrounding the subject site is an active urban environment. Traffic and associated site access controls will need to be enforced. It is anticipated that the site will be fenced and access will be limited to authorized personnel only. Based on the contaminants of concern identified at the site, the primary health and safety issue associated with the planned remedial excavation activities underthis PMP will be proper control of dust during site grading activities. The Community Health and Safety Plan provides guidance forthe handling of known and unknown hazards that may be encountered at the site, as well as provide guidance for a safe work environment for the public by: Shea Homes ~ W.O. E6649.1-SC 2373 and 2375 Pio Pico Dr., Carlsbad r- « '1 I April 30,2014 File:e:\wp12\env\e6600\e6649.1.pmp GcoSoilS, InC. Page 11 a) Reducing community exposures to potential hazards and nuisances caused by site work; b) Promoting community awareness of the proposed remediation project; and, c) Monitoring and mitigation potential public hazards and nuisances caused bythe site work that may migrate offsite including dust and noise. SITE SPECIFIC HEALTH AND SAFETY PLAN A Site Specific Health and Safety Plan has been prepared for this project and is also attached in Appendix D. The Health and Safety Plan is to be followed by all GSI employees and subcontractors during the remedial excavation process. It is the intent of the Health and Safety Plan to address risks associated with the site, surrounding area, and proposed activities. The health and safety guidelines in this plan were prepared specifically for this site, it's conditions, and it's purposes and may be amended if conditions change. Prior to commencing work each day, a Daily Safety Meeting will be performed with all employees and subcontractors. The purpose of the meeting will be to inform all employees and subcontractors of proper working procedures, site specific hazards, and emergency procedures. All workers must acknowledge that the Health and Safety Plan was reviewed prior to commencement of daily activities. The Site Specific Health and Safety Plan must be available for review by all employees and subcontractors at the job location at all times. LIMITATIONS GSI has performed the services for this project in accordance with the terms of a specific scope in a contract between GSI and Client, and in general 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 sampled by GSI. The interpretations and recommendations of GSI are based solely on such information and/or information supplied by others. Findings of this assessment based on data provided by others carries no warranty, express or implied, as a result ofthe usage of such data. Shea Homes W.O. E6649.1-SC 2373 and 2375 Pio Pico Dr., Carlsbad r- « '1 I April 30,2014 File:e:\wp12\env\e6600\e6649.1.pmp GCOSOllS, InC. Page 12 It is possible that future assessments may reveal additional data or variations ofthe 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. CLOSURE The opportunity to be of services is appreciated. If you should have any questions, please do not hesitate to contact the undersigned at (760) 438-3155. Respectfully submitted GeoSoils, Inc. John P. Franklin Registered Environmental Property Assessor No. 461992, CEG 1340, CHG 532 PSR/JPF/jh Attachments: Distribution: Appendix A - References Appendix B - Chain-of-Custody Record Appendix C - Community Health and Safety Plan Appendix D - Site Specific Health and Safety Plan Plate 1 - Soil Sample Location Map, Proposed Location of Toxaphene Affected Soils and Cross Sections of Proposed Location of Toxaphene Affected Soils (1) Addressee (as a pdf via Geotracker website) (2) Shea Homes., Attention: Ms. Sarah Morrell Shea Homes 2373 and 2375 Pio Pico Dr., Carlsbad File:e:\w/p12\env\e6600\e6649.1 .pmp GeoSoils, Inc. W.O. E6649.1-SC April 30, 2014 Page 13 APPENDIXA REFERENCES GeoSoils, Inc. APPENDIX A REFERENCES bHA, Inc., 2014, Remedial Grading Exhibit, Toxaphene Removal & Replacement, Carisbad, CA, CTI 2-01/PUD12-08, CDP 12-15, W.O. 901-1224-400, 40-scale plane, dated March 31. , 2012, Tentative Map & Coastal Development Plan CT 12-01/CDP 12-15 for Miles- Pacific subdivision, Carisbad, CA, W.O. 901-1224-400, 100- and 30-scale plans. Sheets 1-3, W.O. 901-1224-400, dated August 29. California Regional Water Quality Control Board, 1995, Water Quality Control Plan forthe San Diego Basin (9), dated September 8. Smucker, Stanford J., 2002, United States Environmental Protection Agency (USEPA), Region IX, Region 9 preliminary remediation goals (PRGs) Table 2002 update, dated November 1. State of California 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 Department of Water Resources, 2013, Water data library (www.well.water.ca.gov/). , 1967, Groundwater Occurrence and Quality, San Diego Region, Bulletin 106-2, Vol. II, Plate 8A, dated June. GeoSoils, Inc. (GSI), 2014, Phase I Environmental Site Assessment and Limited Phase II Soil Evaluation, APN(S) 156-351-03, -07, -08, 2373 and 2375 Pio Pico Drive, Carlsbad, San Diego County, California 92008, W.O. E6649-SC dated January 6. , 2012, Preliminary Geotechnical Evaluation, APN(S) 156-351-03, -07, -08,2373 and 2375 Pio Pico Drive, Carlsbad, San Diego County, California 92008, W.O. E6324-A-SC dated October 31. , 2011a, Limited Phase II Site Characterization, Agricultural Residue Survey, 2373 and 2375 Pio Pico Drive, APN(S) 156-351-03, -07, -08, Carisbad, San Diego County, California 92008, W.O. E6211.1-SC dated August 4. , 2011 b. Phase I Environmental Site Assessment, 2373 and 2375 Pio Pico Drive, APN(S) 156-351-03, -07, -08, Carisbad, San Diego County, California 92008, W.O. E6211-SC, dated March 31. GeoSoils, Inc. Kennedy, M.P., and Tan, SS., 2008, Geologic map ofthe San Diego 30' by 60' quadrangle, California, Map no. 3, scale 1:100,000,California Geologic Sun/ey and U.S. Geologic Survey. Kennedy, M.P., and Tan, S.S., 2005, Geologic map ofthe San Diego 30' by 60' quadrangle, California, regional geologic map series, scale 1:100,000, California Geologic Survey and United States Geological Survey, www.conservation.ca.gov/cgs/rghm/rgm/preliminary_geologic_maps.htm Norris, R.M., and Webb, R.W., 1990, Geology of California, second edition, John Wiley & Sons, Inc. United States Department of Agriculture, Natural Resources Consen/ation Service, 2014, Web Soil Survey, http://websoilsurvey.sc.egov.usda.gov/App/WebSoilSun/ey.aspx, accessed January 2. Shea Homes c -i i Appendix A File:e:\wp12\env\e6600\e6649.1.pmp GcoSoilS, InC. Page 2 APPENDIX B CHAIN-OF-CUSTODY RECORD GeoSoils, Inc. a/science vironmental IL aboratories. Inc. CALSCIENCE WORK ORDER NUMBER: 13-12-1774 The difference is service AtR I SOIL I WATER | MARINE CHEMISTRY Analytical Report For Client GeoSoils, Inc. Client Project Name: Shea-Miles Pacific Attention: John Franklin 5741 Palmer Way Carlsbad, CA 92010-7248 Approved for release on 01/02/2014 by: Richard Villafiania Project Manager CdtdMoe BivlrormMntal LaborrtDriM, Inc. (Calfdanoe) certifiM that ttM moaniHtHan \» i«qiA«d or avaiable. Any (oeBaptiona to NELAC raquiranwniB ara noM ki the caia namUva. TIM original report of auboonbacted analysea, V any, It attached to this report The reauNt In ttris report ara Ibnned to the aampleCs) tested an^ recipient of tMa raport le epedfically prehibited Imn HMldng nwtBiW ciwigea to aaid raport retponeibie, iegaly or othetwise. The client or radpient agrees to Indemnity Calsdenoe tbr any defense to any litigalion which may aiiae. NELAP ID: 03220CA | DoD-ELAP ID: L10-41 | CSDLACID: 10109 j SCAOMD ID: 93LAD830 _ Page 2 of 18 ^jilscience vironmental L aboratories, Inc. C 011 tG n tS Client Project Name: Shea-Miles Pacific Work Order Number: 13-12-1774 1 Work Order Narrative 3 2 Client Sample Data 4 2.1 EPA 8081A Organochlorine Pesticides (Solid) 4 3 Quality Control Sample Data 11 3.1 MS/MSD 11 3.2 LCS/LCSD 13 4 Sample Analysis Summary 15 5 Glossary of Terms and Qualifiers 16 6 Chain of Custody/Sample Receipt Form 17 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 » FAX: (714) 894-7501 Page 3 of 18 ^^Iscience ^ ^ , Work Order Narrative ^ /7 Vironmental ggg, aboratories, Inc. Work Order: 13-12-1774 Page 1 of 1 Condition Upon Receipt: Samples were received under Chain of Custody (COC) on 12/20/13. They were assigned to Work Order 13-12-1774. Unless othenwise noted on the Sample Receiving forms all samples were received in good condition and within the recommended EPA temperature criteria for the methods noted on the COC. The COC and Sample Receiving Documents are integral elements of the analytical report and are presented at the back of the report. Holding Times: All samples were analyzed within prescribed holding times (HT) and/or in accordance with the Calscience Sample Acceptance Policy unless othenA/ise noted in the analytical report and/or comprehensive case narrative, if required. Any parameter identified in 40CFR Part 136.3 Table 11 that is designated as "analyze immediately" with a holding time of <= 15 minutes (40CFR-136.3 Table 11, footnote 4), is considered a "field" test and the reported results will be qualified as being received outside ofthe stated holding time unless received at the laboratory within 15 minutes ofthe collection time. Quality Control: All quality control parameters (QC) were within established control limits except where noted in the QC summary forms or described further within this report. Additional Comments: Air - Sorbent-extracted air methods (EPA T0-4A, EPA TO-10, EPA T0-13A, EPA TO-17): Analytical results are converted from mass/sample basis to mass/volume basis using client-supplied air volumes. New York NELAP air certification does not certify for all reported methods and analytes, reference the accredited items here: http://www.calscience.com/PDF/New_Yorl<.pdf Solid - Unless othenwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are always reported on a wet weight basis. Subcontractor Information: Unless othenwise noted below (or on the subcontract form), no samples were subcontracted. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • FAX: (714) 894-7501 Page 4 of 18 ^ alscience £ji vironmental ^ aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Cartsbad, CA 92010-7248 Preparation: Method: Units: EPA 3545 EPA 8081A ug/kg Project: Shea-Miles Pacific Page 1 of 7 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time QC Batch ID Analyzed 13-1M77M-A izoorts 14:13 8oW GC44 1203113 . 120an3 131223LW Parameter Result RL DF Qualifiers Aldrin 5.6 5.0 1 Alpha-BHC ND 5.0 1 Beta-BHC ND 5.0 1 Chlordane ND 50 1 4,4'-DDD ND 5.0 1 Delta-BHC ND 5.0 1 Dieldrin ND 5.0 1 Endosulfan 1 ND 5.0 1 Endosulfan II ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Endrin ND 5.0 1 Endrin Aldehyde ND 5.0 1 Endrin Ketone ND 5.0 1 Gamma-BHC ND 5.0 1 Heptachlor ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Methoxychlor ND 5.0 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 87 24-168 2,4,5,6-Tetrachloro-m-Xylene 94 25-145 ioi«8-rir?.5':; 1»-12-1774.1^ • - 3 •14:13 . Solid GC44 1203/13 1201/13 . 131223L14 14:31 ^ Parameter Result RL DF Qualifiers 4,4'-DDE 270 100 20 4,4'-DDT 450 100 20 Toxaphene 15000 2000 20 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 119 24-168 2,4,5,6-Tetrachloro-m-Xylene 108 25-145 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 FAX: (714) 894-7501 Page 5 of 18 ^ alscience Sji vironmental ^ aboratories, Inc. Analytical Report GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Carlsbad, CA 92010-7248 Preparation: Method: Units: EPA 3545 EPA 8081A ug/kg Project: Shea-Miles Pacific Page 2 of 7 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time QC Batch ID Analyzed leinr 13-ia^7744A 120(V13 14:23 Sow GC44 1203n3 12n8rt3 131223L14 13:43, ' ^ t ,\ Parameter Result RL DF Qualifiers Aldrin ND 5.0 1 Alpha-BHC ND 5.0 1 Beta-BHC ND 5.0 1 Chlordane ND 50 1 4,4'-DDD ND 5.0 1 4,4'-DDE 24 5.0 1 4,4'-DDT 16 5.0 1 Delta-BHC ND 5.0 1 Dieldrin ND 5.0 1 Endosulfan 1 ND 5.0 1 Endosulfan 11 ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Endrin ND 5.0 1 Endrin Aldehyde ND 5.0 1 Endrin Ketone ND 5.0 1 Gamma-BHC ND 5.0 1 Heptachlor ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Methoxychlor ND 5.0 1 Toxaphene 670 100 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 94 24-168 2,4,5,6-Tetrachloro-m-Xylene 103 25-145 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • FAX: (714) 894-7501 Page 6 of 18 alscience vironmental ^ aboratories, Inc. Analytical Report GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Carlsbad, CA 92010-7248 Preparation: Method: Units: EPA 3545 EPA8081A ug/kg Project: Shea-Miles Pacific Page 3 of 7 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time QC Batch ID Analyzed ia2or-ir , 13-12-1774^ i2aQn3 14al6 8oHd GC44 1203^3 1203113 131223L14 13:67 Parameter Result RL DF Qualifiers Aldrin 5.4 5.0 1 Alpha-BHC ND 5.0 1 Beta-BHC ND 5.0 1 Chlordane ND 50 1 4,4'-DDD ND 5.0 1 Delta-BHC ND 5.0 1 Dieldrin ND 5.0 1 Endosulfan 1 ND 5.0 1 Endosulfan 11 ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Endrin ND 5.0 1 Endrin Aldehyde ND 5.0 1 Endrin Ketone ND 5.0 1 Gamma-BHC ND 5.0 1 Heptachlor ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Methoxychlor ND 5.0 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 89 24-168 2,4,5,6-Tetrachloro-m-Xylene 96 25-145 io2ee:-i2-13-12^774-»A 120Qn3 14:46 SoiM 6044 1203^3 1201I13 1812aL14 18:00 ''ttph;.' Parameter Result RL DF Qualifiers 4,4'-DDE 370 100 20 4,4'-DDT 470 100 20 Toxaphene 18000 2000 20 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 116 24-168 2,4,5,6-Tetrachloro-m-Xylene 104 25-145 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 FAX: (714) 894-7501 Page 7 of 18 ^ alscience S_n vironmental ^ aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Cartsbad, CA 92010-7248 Preparation: Method: Units: EPA 3545 EPA 8081A ug/kg Project: Shea-Miles Pacific Page 4 of 7 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Date/Time QC Batch ID Prepared Analyzed 10292* 13-18.1774^ 120018 14:82 Mid QC44 1203n8 < 1208n8 U1228tW Parameter Result RL DF Qualifiers Aldrin ND 5.0 1 Alpha-BHC ND 5.0 1 Beta-BHC ND 5.0 1 Chlordane ND 50 1 4,4'-DDD ND 5.0 1 4,4'-DDE 9.2 5.0 1 4,4'-DDT ND 5.0 1 Delta-BHC ND 5.0 1 Dieldrin ND 5.0 1 Endosulfan 1 ND 5.0 1 Endosulfan II ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Endrin ND 5.0 1 Endrin Aldehyde ND 5.0 1 Endrin Ketone ND 5.0 1 Gamma-BHC ND 5.0 1 Heptachlor ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Methoxychlor ND 5.0 1 Toxaphene ND 100 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 95 24-168 2,4,5,6-Tefrachloro-m-Xylene 103 25-145 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 FAX: (714) 894-7501 Page 8 of 18 ^alscience vironmental Analytical Report ^ aboratories. Inc. GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Cartsbad, CA 92010-7248 Preparation: Method: Units: EPA 3545 EPA 8081A ug/kg Project: Shea-Miles Pacific Page 5 of 7 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time QC Batch ID Analyzed i03e6"-ir 13-124774«A 12O0n8 16:20 Solid GC4« 1203/18 12«8n8 ' 481228L14 Parameter Result RL DF Qualifiers Aldrin ND 5.0 1 Alpha-BHC ND 5.0 1 Beta-BHC ND 5.0 1 Chlordane ND 50 1 4,4'-DDD ND 5.0 1 Delta-BHC ND 5.0 1 Dieldrin ND 5.0 1 Endosulfan 1 ND 5.0 1 Endosulfan 11 ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Endrin ND 5.0 1 Endrin Aldehyde ND 5.0 1 Endrin Ketone ND 5.0 1 Gamma-BHC ND 5.0 1 Heptachlor ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Methoxychlor ND 5.0 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 99 24-168 2,4,5,6-Tetrachloro-m-Xylene 109 25-145 i03e6''-ir ' 15-12-1774-^A 120QN3 18:20 Solid GC44 I "... 1203M3 120V18|r 181228U4 Parameter Result RL DF Qualifiers 4,4'-DDE 190 100 20 4,4'-DDT 280 100 20 Toxaphene 16000 2000 20 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 132 24-168 2,4,5,6-Tetrachloro-m-Xylene 122 25-145 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 FAX: (714) 894-7501 Page 9 of 18 =^ alscience Sji vironmental L aboratories, Inc. Analytical Report GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Carlsbad, CA 92010-7248 Preparation: Method: Units: EPA 3545 EPA8081A ug/kg Project: Shea-Miles Pacific Page 6 of 7 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Date/Time QC Batch ID Prepared Analyzed lOSQT 13-1M7744A iaaQn3 16:24 Solid GC44 1208n8r' /;'l2aiN8»/' .1131228L14 , • • - %*m,^' I V Parameter Result RL DF Qualifiers Aldrin ND 5.0 1 Alpha-BHC ND 5.0 1 Beta-BHC ND 5.0 1 Chlordane ND 50 1 4,4'-DDD ND 5.0 1 4,4'-DDE 22 5.0 1 4,4'-DDT 15 5,0 1 Delta-BHC ND 5.0 1 Dieldrin ND 5.0 1 Endosulfan 1 ND 5.0 1 Endosulfan II ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Endrin ND 5.0 1 Endrin Aldehyde ND 5.0 1 Endrin Ketone ND 5.0 1 Gamma-BHC ND 5.0 1 Heptachlor ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Methoxychlor ND 5.0 1 Toxaphene 920 100 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 79 24-168 2,4,5,6-Tetrachloro-m-Xylene 85 25-145 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • F/VX: (714) 894-7501 Page 10 of 18 ^alscience ^n vironmental ^ aboratories, Inc. Analytical Report GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Shea-Miles Pacific Page 7 of 7 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Date/Time QC Batch ID Prepared Analyzed IMhod Blank 0W.ia4»7<4«74 N/A Solid GC44 1203n3 ,1804/18 C 181228L14 12KW ; Parameter Result RL DF Qualifiers Aldrin ND 5.0 1 Alpha-BHC ND 5.0 1 Beta-BHC ND 5.0 1 Chlordane ND 50 1 4,4'-DDD ND 5.0 1 4,4'-DDE ND 5.0 1 4,4'-DDT ND 5.0 1 Delta-BHC ND 5.0 1 Dieldrin ND 5.0 1 Endosulfan 1 ND 5.0 1 Endosulfan II ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Endrin ND 5.0 1 Endrin Aldehyde ND 5.0 1 Endrin Ketone ND 5.0 1 Gamma-BHC ND 5.0 1 Heptachlor ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Methoxychlor ND 5.0 1 Toxaphene ND 100 Surroaate Rec. (%) Control Limits Qualifiers Decachlorobiphenyl 86 24-168 2,4,5,6-Tetrachloro-m-Xylene 81 25-145 RL: Reporting Limit. DF: Dilution Factor. MDL: Method Detection Limit. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 * FAX: (714) 894-7501 Page 11 of 18 ^ alscience vironmental ^ aboratories. Inc. Quality Control - Spike/Spike Duplicate GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Cartsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Project: Shea-Miles Pacific Page 1 of 2 Quality Control Sample ID Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number 13-12-1866-3 SoUd GC44 1203/13 1204/1316:16 181223814 Parameter Sample Soike MS MS MSP MSD %Rec. CL RPP RPP CL Qualifiers Cone. Added Cone. %Rec. Cone. %Rec. RPP CL Qualifiers Aldrin ND 25.00 20.61 82 22.74 91 50-135 10 0-25 Alpha-BHC ND 25.00 20.34 81 22.85 91 50-135 12 0-25 Beta-BHC ND 25.00 19.35 77 21.56 86 50-135 11 0-25 4,4'-DDD ND 25.00 21.33 85 23.17 93 50-135 8 0-25 4,4-DDE ND 25.00 21.35 85 22.93 92 50-135 7 0-25 4,4'-DDT ND 25.00 21.26 85 22.94 92 50-135 8 0-25 Delta-BHC ND 25.00 20.78 83 22.89 92 50-135 10 0-25 Dieldrin ND 25.00 21.26 85 23.14 93 50-135 8 0-25 Endosulfan 1 ND 25.00 20.89 84 22.79 91 50-135 9 0-25 Endosulfan II ND 25.00 21.49 86 23.29 93 50-135 8 0-25 Endosulfan Sulfate ND 25.00 20.49 82 21.84 87 50-135 6 0-25 Endrin ND 25.00 19.82 79 21.51 86 50-135 8 0-25 Endrin Aldehyde ND 25.00 20.30 81 22.26 89 50-135 9 0-25 Gamma-BHC ND 25.00 20.22 81 22.56 90 50-135 11 0-25 Heptachlor ND 25.00 20.80 83 22.92 92 50-135 10 0-25 Heptachlor Epoxide ND 25.00 21.62 86 21.85 87 50-135 1 0-25 Methoxychlor ND 25.00 21.05 84 22.49 90 50-135 7 0-25 RPD: Relative Percent Difference. CL: Control Limits 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • F/\X: (714) 894-7501 Page 12 of 18 ^alscience SJI vironmental ^ aboratories, inc. Spike/Spike Duplicate - Surrogate GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Project: Shea-Miles Pacific Date Received: Work Order: Preparation: Method: 12/20/13 13-12-1774 EPA 3545 EPA 8081A Page 2 of 2 Quality Control Sample ID Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number 13-12-1666-3 SoOd GC44 1203/13 1204^816:16 181228SM Parameter Decachlorobiphenyl 2,4,5,6-Tetrachloro-m-Xylene Soike Added MS Cone. MS %Ree. MSD Cone. 25,00 44.85 90 48.11 25.00 49.01 98 51.53 MSD %Ree. 96 103 %Rec. CL Qualifiers 24- 168 25- 145 RPD: Relative Percent Difference. CL: Control Limits 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • FAX: (714) 894-7501 Page 13 of 18 =^ alscience S n vironmental ^ aboratories. Inc. Quality Control - LCS GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Carlsbad, CA 92010-7248 Preparation: Method: EPA 3545 EPA 8081A Project: Shea-Miles Pacific Page 1 of 2 Quality Control Sample ID Matrix Instrument Date Analyzed LCS Batch Number 099-12-837-1874 SoNd 6C44 1204/1812:28 181223L14 Parameter Soike Added Cone. LCS %Ree. Recovered %Rec. CL ME CL Qualifiers Aldrin 25.00 22.02 88 50-135 36-149 Alpha-BHC 25,00 22.62 90 50-135 36-149 Beta-BHC 25.00 21.53 86 50-135 36-149 4,4'-DDD 25.00 21.40 86 50-135 36-149 4,4'-DDE 25.00 21.65 87 50-135 36-149 4,4'-DDT 25.00 20.94 84 50-135 36-149 Delta-BHC 25.00 21.92 88 50-135 36-149 Dieldrin 25.00 21.74 87 50-135 36-149 Endosulfan 1 25.00 21.92 88 50-135 36-149 Endosulfan II 25.00 22.16 89 50-135 36-149 Endosulfan Sulfate 25.00 20.63 83 50-135 36-149 Endrin 25.00 21.86 87 50-135 36-149 Endrin Aldehyde 25.00 20.48 82 50-135 36-149 Gamma-BHC 25.00 22.45 90 50-135 36-149 Heptachlor 25.00 22.34 89 50-135 36-149 Heptachlor Epoxide 25.00 20.09 80 50-135 36-149 Methoxychlor 25.00 20.80 83 50-135 36-149 Total number of LCS compounds: 17 Total number of ME compounds: 0 Total number of ME compounds allov^red: 1 LCS ME CL validation result: Pass RPD: Relative Percent Difference. CL: Control Limits 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • FAX: (714) 894-7501 ^ alscinnca Sji vironmental ^ aboratories. Inc. Page 14 of 18 LCS Only - Surrogate GeoSoils, Inc. Date Received: 12/20/13 5741 Palmer Way Work Order: 13-12-1774 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Project: Shea-Miles Pacific Page 2 of 2 Quality Control Sample ID Matrix Instrument Date Prepared Date /Analyzed LCS/LCSD Batch Number 099-12-637-1874 Solid 6044 1203^3 00:00 1204N312da '181223L14 Parameter Decachlorobiphenyl 2,4,5,6-Tetrachloro-m-Xylene Soike Added 25.00 25.00 LCS Cone. 44.42 47.38 LCS %Rec. 89 95 %Rec. CL 24- 168 25- 145 Qualifiers RPD: Relative Percent Difference. CL: Control Limits 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • FAX: (714) 894-7501 Page 15 of 18 ^alscience Environmental ^^""P'® Analysis Summary Report ^ aboratories, Inc. Work Order: 13-12-1774 Page 1 of 1 Method Extraction Chemist ID instrument Anaivtical Location EPA8081A EPA 3545 842 GC 44 1 Location 1: 7440 Lincoln Way, Garden Grove, CA 92841 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • F/\X: (714) 894-7501 Page 16 of 18 ^alscience ^ ^ , Glossary of Terms and Qualifiers g^jivironmental ' ^ aboratories, Inc. Work Order: 13-12-1774 Page 1 of 1 Qualifiers Definition See applicable analysis comment. < Less than the indicated value. > Greater than the indicated value. 1 Surrogate compound recovery w^as out of control due to a required sample dilution. Therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. 3 Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of control due to suspected matrix interference. The associated LCS recovery was in control. 4 The MS/MSD RPD was out of control due to suspected matrix interference. 5 The PDS/PDSD or PES/PESD associated with this batch of samples was out of control due to suspected matrix interference. 6 Surrogate recovery below the acceptance limit. 7 Surrogate recovery above the acceptance limit. B Analyte was present in the associated method blank. BU Sample analyzed after holding fime expired. BV Sample received after holding time expired. E Concentration exceeds the calibration range. ET Sample was extracted past end of recommended max. holding time. HD The chromatographic pattern was inconsistent with the profile of the reference fuel standard. HDH The sample chromatographic pattern for TPH matches the chromatographic pattern of the specified standard but heavier hydrocarbons were also present (or detected). HDL The sample chromatographic pattern for TPH matches the chromatographic pattern of the specified standard but lighter hydrocarbons were also present (or detected). J Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. JA Analyte positively identified but quantitafion is an estimate. ME LCS Recovery Percentage is within Marginal Exceedance (ME) Control Limit range (•!•/- 4 SD from the mean). ND Parameter not detected at the indicated reporting limit. Q Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. SG The sample extract was subjected to Silica Gel treatment prior to analysis. X % Recovery and/or RPD out-of-range. Z Analyte presence was not confirmed by second column or GC/MS analysis. Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. Any parameter identified in 40CFR Part 136.3 Table II that is designated as "analyze immediately" with a holding time of <= 15 minutes (40CFR-136.3 Table 11, footnote 4), is considered a "field" test and the reported results will be qualified as being received outside ofthe stated holding time unless received at the laboratory within 15 minutes of the collection time. A calculated total result (Example: Total Pesticides) is the summation of each component concentration and/or, if "J" flags are reported, estimated concentration. Component concentrations showing not detected (ND) are summed into the calculated total result as zero concentrafions. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL: (714) 895-5494 • FAX: (714) 894-7501 Calscience Environmental Laboratories, Inc. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • (714) 895-5494 •B^ other CA office locations: Concord and San Luis Obispo For courier service / sample drop off information, contact sales(Sicalscience.com or call us. WO # / LAB USE ONLY 13-12-1774 CHAIN OF CUSTODY RECORD Date Page_ of LABORATORY CLIENT: ADDRESS CITY /-\ I I I STATET ^IP CLIENT PROJECT NAME / NUMBER; PROJECT CONTACT: lAltj. Ao]\v\ ^vJ^fiH TURI^iAROUNDTIME: P.O. NO.: SAMPLER{S): (PRINT) REQUESTED ANALYSES TURNAROUND TIME • SAME DAY • 24 HR • 48 HR • COELT EPF • 72 HR 3^TANDARD GLOBAL ID SPECIAL INSTRUCTIONS: LAB USE ONLY SAMPLE ID SAMPLING DATE TIME NO. OF CONT. LOG CODE X /0/e •!:"-i2" 2-/ol&. 3' IM-.33 1 IPX 1 i DISTRIBUTION: White with final report. Green and Yellow to Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the Green and Yellow copies respectively. 01/01/12 Revision Page 18 of 18 ^^^^ ^vfmffmmmi WORK ORDER #: 1 3-12-13 @ Cooler of \ SAMPLE RECEIPT FORM CLIENT: QBOeOtL DATE.- 12/2f)/13 TEMPERATURE: Thermometer ID: SC2 (Criteria: 0.0 °C - 6.0 °C, not frozen ex^t sediment/tissue) Temperature 1 .0^ °C-0.2°C (CF) = I .'^ °C dBlank • Sample • Sample(s) outside temperature criteria (PM/APM contacted by: ). • Sample(s) outside temperature criteria but received on ice/chilled on same day of sampling. • Received at ambient temperature, placed on ice for transport by Courier. Ambient Temperature: • Air • Filter Checked by: 671 CUSTODY SEALS INTACT: • Cooler • • No (Not Intact) Not Present • N/A Checked by: 671 • Sample • • No (Not Intact) ^Not Present Checked by: SAMPLE CONDITION: Yes No N/A Chain-Of-Custody (COC) document(s) received with samples • • COC document(s) received complete • • • Collection date/time, matrix, and/or # of containers logged in based on sample labels. • No analysis requested. • Not relinquished. • No date/time relinquished. Sampler's name indicated on COC • • Sample container label(s) consistent with COC • • Sample container(s) intact and good condition • • Proper containers and sufficient volume for analyses requested • • Analyses received within holding time n • Aqueous samples received within 15-minute holding time • pH • Residual Chlorine • Dissolved Sulfides • Dissolved Oxygen • • Proper preservation noted on COC or sample container • • • Unpreserved vials received for Volatiles analysis Volatile analysis container(s) free of headspace • • Tedlar bag(s) free of condensation • • CONTAINER TYPE: Solid: zf4ozCGJ DSozCGJ DieozCGJ DSIeeve ( ) DEnCores® DTerraCores® •_ Aqueous: DVOA DVOAh DVOAnaz •125AGB •125AGBh •125AGBp DIAGB DIAGBnaz DIAGBs • 500AGB •500AGJ •SOOAGJs •250AGB •250CGB •250CGBs DIPB DIPBna •500PB •250PB •250PBn •125PB •125PBznna •100PJ •lOOPJnaz • • • Air: DTedlar® DCanister Other: • Trip Blank Lot#: Labeled/Checked by Container: C: Clear A: Amber P: Plastic G: Glass J: Jar B: Bottle Z: Ziploc/Resealable Bag E: Envelope Reviewed by Preservative: h: HGL n: HNO3 na2:Na2S203 na: NaOH p; HaPO^ s: H2SO4 u; Ultra-pure znna: ZnAC2-^NaOH f: Filtered Scanned by: Tl^ SOP T100_090 (07/31/13) Page 1 of 7 alscience ^environmental ^ aboratories, Inc. June 16, 2011 Bryan Voss GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Subject. Calscience Work Order No.: 11 -06-0692 Client Reference: Miles-Pacific, LP Dear Client: Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 6/9/2011 and analyzed in accordance with the attached chain-of-custody. Calscience Environmental Laboratories certifies that the test results provided in this report meet all NELAC requirements for parameters forwhich accreditation is required or available. Any exceptions to NELAC requirements are noted in the case narrative. The original report of subcontracted analysis, if any, is provided herein, and follows the standard Calscience data package. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety. If you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, Calscience Environmental Laboratories. Inc. Richard Villafania Project Manager NELAP ID: 03220CA • DoD-ELAP ID: Ll 0-41 • CSDLACID: 10109 • SCAQMD ID: 93LA0830 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 2 of 7 ^/sc/ence nvironmental ^ aboratories, Inc. Analytical Report GeoSoils, Inc. Date Received: 06/09/11 5741 Palmer Way Work Order No: 11-06-0692 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 1 of 1 Lab Sample Date/Time Date Pate/Time Client Sample Number Number Collected "^3'"" Instrument Prepared Analyzed Batch IP S-3@3' 11-06-0692-1-A 06/09/11 Solid GC61 06/10/11 06/14/11 110610L16 11:00 20:43 Parameter Result RL DF Qua! Parameter Result RL PF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane NP 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 55 10 Gamma-BHC ND 5.0 1 4,4'-PPT 21 5.0 1 Heptachlor ND 5.0 1 Pelta-BHC NP 5.0 1 Heptachlor Epoxide ND 5.0 1 Pieldrin NP 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 NP 5.0 1 Toxaphene 160 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Pecachlorobiphenyl 70 50-135 2,4,5,6-Tetrachloro-m-Xylene 79 50-135 IVIethod Blank 099-12-637-1,047 N/A Solid GC 61 06/10/11 06/14/11 110610L16 16:40 Parameter Result RL DF Qua! Parameter Result RL PF Qua! Aldrin NP 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC NP 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC NP 5.0 1 Endrin ND 5.0 1 Chlordane NP 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC NP 5.0 1 4,4'-PPT ND 5.0 1 Heptachlor NP 5.0 1 Pelta-BHC ND 5.0 1 Heptachlor Epoxide NP 5.0 1 Dieldrin ND 5.0 1 Methoxychlor NP 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene NP 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits REC (%) Limits Decachlorobiphenyl 70 50-135 2,4,5,6-Tetrachloro-m-Xylene 95 50-135 I KL - Kl IMAM RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL(714) 895-5494 • F/\X: (714) 894-7501 Page 3 of 7 ^ alscience ^ nvironmental Quality Control - Spike/Spike Duplicate ^ aboratories, Inc. GeoSoils, Inc. Date Received: 06/09/11 5741 Palmer Way Work Order No: 11-06-0692 Carlsbad, CA 92010-7248 Preparation EPA 3545 Method: EPA 8081A Project Miles-Pacific, LP Pate Date MS/MSP Batch Quality Control Sample IP Matrix Instrument Prepared Analyzed Number 11-06-0708-9 Solid GC 61 06/10/11 06/14/11 110610S16 Parameter MS %REC MSP %REC %REC CL RPD RPD CL Qualifiers Aldrin 77 70 50-135 10 0-25 Alpha-BHC 80 73 50-135 9 0-25 Beta-BHC 84 78 50-135 7 0-25 4,4'-PPP 82 81 50-135 1 0-25 4,4'-PPE 82 81 50-135 2 0-25 4,4'-PPT 86 79 50-135 9 0-25 Pelta-BHC 82 75 50-135 9 0-25 Pieldrin 78 76 50-135 3 0-25 Endosulfan 1 76 74 50-135 2 0-25 Endosulfan 11 80 79 50-135 1 0-25 Endosulfan Sulfate 75 72 50-135 5 0-25 Endrin 85 80 50-135 6 0-25 Endrin Aldehyde 65 64 50-135 2 0-25 Gamma-BHC 83 77 50-135 7 0-25 Heptachlor 80 75 50-135 6 0-25 Heptachlor Epoxide 70 70 50-135 0 0-25 Methoxychlor 79 71 50-135 11 0-25 RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 4 of 7 ^ alscience S-nvironmental Quality Control - LCS/LCS Duplicate M aboratories, Inc. GeoSoils, Inc. Date Received: N/A 5741 Palmer Way Work Order No: 11-06-0692 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Project: Miles-Pacific, LP Quality Control Sample IP Date Date LCS/LCSD Batch Quality Control Sample IP Matrix Instrument Prepared Analyzed Number 099-12-637-1,047 Solid GC 61 06/10/11 06/14/11 110610L16 Parameter LCS %REC LCSD %REC %REC CL ME CL RPD RPD CL Qualifiers Aldrin 87 91 50-135 36-149 5 0-25 Alpha-BHC 93 94 50-135 36-149 2 0-25 Beta-BHC 97 96 50-135 36-149 1 0-25 4,4'-PPP 94 90 50-135 36-149 4 0-25 4,4'-PPE 95 93 50-135 36-149 3 0-25 4,4'-DDT 99 98 50-135 36-149 1 0-25 Pelta-BHC 93 93 50-135 36-149 0 0-25 Pieldrin 92 90 50-135 36-149 2 0-25 Endosulfan 1 91 90 50-135 36-149 1 0-25 Endosulfan 11 94 92 50-135 36-149 2 0-25 Endosulfan Sulfate 89 88 50-135 36-149 1 0-25 Endrin 101 101 50-135 36-149 1 0-25 Endrin Aldehyde 83 82 50-135 36-149 1 0-25 Gamma-BHC 97 97 50-135 36-149 0 0-25 Heptachlor 94 95 50-135 36-149 1 0-25 Heptachlor Epoxide 79 77 50-135 36-149 2 0-25 Methoxychlor 94 94 50-135 36-149 0 0-25 Total number of LCS compounds : 17 Total number of ME compounds : 0 Total number of ME compounds allowed : LCS ME CL validation result: Pass RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 5 of 7 ~ alscience Bi nvironmental ^. .-r ^ , e = Glossary of Terms and Qualifiers ^ aboratories. Inc. Work Order Number: 11 -06-0692 Qualifier Definition * See applicable analysis comment. < Less than the indicated value. > Greater than the indicated value. 1 Surrogate compound recovery was out of control due to a required sample dilution, therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. 3 Recovery of the Matrix Spike (MS) or Matnx Spike Duplicate (MSD) compound was out of control due to matrix interference. The associated LCS and/or LCSD was in control and, therefore, the sample data was reported without further clarification. 4 The MS/MSD RPD was out of control due to matnx interference. The LCS/LCSD RPD was in control and, therefore, the sample data was reported without further clarification. 5 The PDS/PDSD or PES/PESD associated with this batch of samples was out of control due to a matrix interference effect. The associated batch LCS/LCSD was in control and, hence, the associated sample data was reported without further clarification. 6 Surrogate recovery below the acceptance limit. 7 Surrogate recovery above the acceptance limit. B Analyte was present in the associated method blank. BU Sample analyzed after holding time expired. E Concentration exceeds the calibration range. ET Sample was extracted past end of recommended max. holding time. J Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. ME LCS Recovery Percentage is within LCS ME Control Limit range. ND Parameter not detected at the indicated reporting limit. Q Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. X % Recovery and/or RPD out-of-range. Z Analyte presence was not confirmed by second column or GC/MS analysis. Solid - Unless othenwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Q Calscience Environmental Laboratories, Inc. tef SoCal Laboratory 7440 Lincoln Way Garden Grove, CA 92841-1427 (714)895-5494 Q NorCal Seivice Center 5063 Commercial Circle, Suite H Concord, CA 94520-8577 (925) 689-9022 CHAIN OF CUSTODY RECORD Date \J^-C 9j Za/f Page / of / LABORATORY CLIENT: AODRESS: CITY EJhl \vi^ ix^AY, STATE ZIP TELA , E-MAIL: , TURNAROUND TIME: CLIENT PROJECT NAME / NUMBER: PROJECT CONTACT: AMPLElIrS): (PRINT) ass SAMPLEBI(S): (PRINT) COELT LOG CODE • ••• P.O. NO.: lAB USE ONLY COOLER RECEIPT TEMP= TURNAROUND TIME • SAIWE DAY • 24 HR • 48 HR • 72 HR SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF • . 5 DAYS • 10 DAYS REQUESTED ANALYSES SPECIAL INSTRUCTIONS: 1^\tci}Wj OWN Sc^ii\c t^-Je ^.r' I AR ^ OAmini i^i^ LAB USE ONLY 7 SAMPLE ID FIELD POINT NAME (FOR COELT EDF) SAMPLING DATE TIME MATRIX NO. OF CONT. Q_ CQ o < CO E. > o o < ro 6 X Q. ir.oo 6ai /l:i€' ^i DISTRIBUTION: White virith final report, Green and Yelkiw to Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of fhe green and Yellow copies respectively. 05/01/07 Revision Page 7 of 7 CLIENT: WORK ORDER #: Cooler Lof L DATE. 06/^ /11 SAMPLE RECEIPT FORM TEMPERATURE: Thermometer ID: SCI (Criteria: 0.0°C-6.0 °C, not frozen) / Temperature ^ . ^ °C + 0.5°C(CF) = 2-*^ °C H Blank • Sample • Sampte(s) outside temperature criteria (PM/APM contacted by: ). • Sample(s) outside temperature criteria but received on ice/chilled on same day of sampling. • Received at ambient temperature, placed on ice for transport by Courier. Ambient Temperature: • Air • Filter Initial: CUSTODY SEALS INTACT: • Cooler •_ • Sample • • No (Not Intact) • No (Not Intact) lot Present Not Present • N/A Initial Initial SAMPLE CONDITION: Yes Chain-Of-Custody (COC) document(s) received with samples 1^ COC document(s) received complete E/^ • Collection date/time, matrix, and/or # of containers logged in based on sample labels. • No analysis requested. • Not relinquished. • No date/time relinquished. / Sampler's name indicated on COC H Sample container label(s) consistent with COC E/ Sample container(s) intact and good condition ^ Proper containers and sufficient volume for analyses requested Analyses received within holding time H pH / Res. Chlorine / Diss. Sulfide / Diss. Oxygen received within 24 hours... • Proper preservation noted on COC or sample container • • Unpreserved vials received for Volatiles analysis Volatile analysis container(s) free of headspace • Tedlar bag(s) free of condensation • CONTAINER TYPE: No • ' • • • • • • • • • • N/A • • • • • • • Solid: 04ozCGJ DSozCGJ •16ozCGJ DSIeeve ( ) DEnCores® DTerraCores® D Water: DVOA DVOAh DVOAnaj D125AGB ai25AGBIi D125AGBp DIAGB DIAGBnaz DIAGBs •500AGB D500AGJ DSOOAGJs D250AGB D250CGB D250CGBs DIPB D500PB DSOOPBna D250PB D250PBn D125PB D125PBznna D100PJ DIOOPJnaa D D D Air: DTedlar® DSumma® Other: D Trip Blanic Lot#: Labeled/Checked Container: C: Clear A: Amber P: Plasfic G: Glass J: Jar B: Bottle Z: Ziploc/Resealable Bag E: Envelope Reviewed by: Presen/ative: h: HCL n: HNO3 na2:Na2S203 na: NaOH p: H3PO4 s: HsSO, znna: ZnAc2+NaOH f: Field-filtered Scanned by: T/^/ SOP T100_090 (03/24/11) Page 1 of 19 =^ alscience SZ= nvironmental aboratories. Inc. June 06, 2011 Bryan Voss GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Supplemental Report 1 Additional requested analyses are reported as a stand-alone report. Subject: Calscience Work Order No.: 11 -05-1376 Client Reference: Miles-Pacific, LP Dear Client: Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 5/20/2011 and analyzed in accordance with the attached chain-of-custody. Calscience Environmental Laboratories certifies that the test results provided in this report meet all NELAC requirements for parameters for which accreditation is required or available. Any exceptions to NELAC requirements are noted in the case narrative. The original report of subcontracted analysis, if any, is provided herein, and follows the standard Calscience data package. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety. If you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, Calscience Environmental Laboratories. Inc. Richard Villafania Project Manager NELAP ID: 03220CA • DoD-ELAP ID: Ll 0-41 • CSDLACID: 10109 • SCAQMD ID: 93LA0830 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 2 of 19 alscience iL nvironmental " aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 1 of 8 Lab Sample Pate/Time Pate Date/Time Client Sample Number Number Collected "^^'"^ Instrument Prepared Analyzed Q"^ ^^'^h ID S-IOgZ' 11-05-1376-16rA OS/20/11 Solid GC61 06/31/11 06/01/11 110631L07 10:00 21:46 Parameter Result RL PE Qua! Parameter Result RL DF Qua! Aldrin NP 5.0 1 Endosulfan 11 NP 5.0 1 Alpha-BHC NP 5.0 1 Endosulfan Sulfate NP 5.0 1 Beta-BHC NP 5.0 1 Endrin NP 5,0 1 Chlordane NP 50 1 Endrin Aldehyde NP 5.0 1 4,4'-DDD NP 5.0 1 Endrin Ketone NP 5.0 1 4,4'-DDE NP 5.0 1 Gamma-BHC NP 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor NP 5.0 1 Pelta-BHC ND 5.0 1 Heptachlor Epoxide NP 5.0 1 Pieldrin NP 5.0 1 Methoxychlor NP 5.0 1 Endosulfan 1 NP 5.0 1 Toxaphene NP 100 1 Surroaates: REC (%) Control Qual Surroaates: REC {%) Control Qual Limits REC {%) Limits Pecachlorobiphenyl 75 50-135 2,4,5,6-Tetrachloro-m-Xylene 71 50-135 s-iie2-11-06-1376-18-A 06/20/11 Solid GC61 06/31/11 06A)1/11 110631L07 10:26 21:69 Parameter Result RL PF Qua! Parameter Result E!, DF Qua! Aldrin NP 5.0 1 Endosulfan 11 NP 5.0 1 Alpha-BHC NP 5.0 1 Endosulfan Sulfate NP 5.0 1 Beta-BHC NP 5.0 1 Endrin ND 5.0 1 Chlordane NP 50 1 Endrin Aldehyde ND 5.0 1 4,4'-PPP ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-PPE ND 5.0 1 Gamma-BHC ND 5.0 1 4,4'-PPT ND 5.0 1 Heptachlor ND 5.0 1 Pelta-BHC NP 5.0 1 Heptachlor Epoxide ND 5.0 1 Pieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 NP 5.0 1 Toxaphene 150 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Pecachlorobiphenyl 78 50-135 2,4,5,6-Tetrachloro-m-Xylene 69 50-135 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 3 of 19 ^ alscience Sm^ nvironmental *• aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 2 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected ^^^"^ Instrument Prepared Analyzed QC Batch ID S-12@2-11-05-1376-20rA 06/20/11 Solid GC61 05/31/11 06/01/11 110631L07 S-12@2- 10:40 22:14 Parameter Result RL DF Qual Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin NP 5.0 1 Chlordane NP 50 1 Endrin Aldehyde NP 5.0 1 4,4'-DDD NP 5.0 1 Endrin Ketone NP 5.0 1 4,4'-DDE NP 5.0 1 Gamma-BHC NP 5.0 1 4,4'-PPT NP 5.0 1 Heptachlor NP 5.0 1 Pelta-BHC NP 5.0 1 Heptachlor Epoxide NP 5.0 1 Pieldrin NP 5.0 1 Methoxychlor NP 5.0 1 Endosulfan 1 NP 5.0 1 Toxaphene NP 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 78 50-135 2,4,5,6-Tetrachloro-m-Xylene 72 50-135 8-1382' 11-06-1376-22nA 0600/11 Solid GC61 05/31/11 06rt)1/11 110631L07 8-1382' 11:10 22:28 Parameter Result R!= DF Qual Parameter Result R!, DF Qua! Aldrin NP 5.0 1 Endosulfan 11 NP 5.0 1 Alpha-BHC NP 5.0 1 Endosulfan Sulfate NP 5.0 1 Beta-BHC NP 5,0 1 Endrin NP 5.0 1 Chlordane NP 50 1 Endrin Aldehyde NP 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone NP 5.0 1 4,4'-DDE 35 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5,0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 290 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 79 50-135 2,4,5,6-Tetrachloro-m-Xylene 70 50-135 I r\L - r\i RL - Reporting Limit DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 4 of 19 ^ alscience nvironmental ^ aboratories. Inc. Analytical Report GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Project: Miles-Pacific, LP Date Received: Work Order No: Preparation: Method: Units: 05/20/11 11-05-1376 EPA 3545 EPA 8081A ug/kg Page 3 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected "^^trix Instrument Prepared Analyzed QC Batch ID S-14@2' 11-06-1376-24A 05/20/11 Solid GC61 05/31/11 06/01/11 110631L07 S-14@2' 11:30 22:42 Parameter Result RL PF Qual Parameter Result RL DF Qua! Aldrin NP 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC NP 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC NP 5.0 1 Endrin ND 5.0 1 Chlordane NP 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD NP 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 9.0 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT NP 5.0 1 Heptachlor ND 5.0 1 Delta-BHC NP 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin NP 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 NP 5.0 1 Toxaphene 150 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Surroaates: Limits Limits Decachlorobiphenyl 69 50-135 2,4,5,6-Tetrachloro-m-Xylene 64 50-135 S-3e2' 11-06-1376-27nA 05/20/11 Solid GC51 05/31/11 06/01/11 110631L07 S-3e2' 08:13 22:57 Parameter Result RL DF Qua! Parameter Result Rl, DF Qua! Aldrin NP 5.0 1 Endosulfan II ND 5.0 1 Alpha-BHC NP 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC NP 5.0 1 Endrin ND 5.0 1 Chlordane NP 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD NP 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 310 100 20 Gamma-BHC NP 5.0 1 4,4'-DDT 550 100 20 Heptachlor NP 5.0 1 Delta-BHC NP 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 NP 5.0 1 Toxaphene 9900 2000 20 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Surroaates: Limits Limits Pecachlorobiphenyl 79 50-135 2,4,5,6-Tetrachloro-m-Xylene 76 50-135 I KL - K( RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 5 of 19 fc^ alscience Mm^ nvironmental " aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 4 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected l^^trix Instrument Prepared Analyzed QC Batch ID S-6@2' 11-05-1376-287A 06/^/11 Solid GC51 06/31/11 06/01/11 110531L07 S-6@2' 08:23 23:11 Parameter Result RL DF Qua! Parameter Result RL DE Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 77 50-135 2,4,5,6-Tetrachloro-m-Xylene 75 50-135 8-782' 11-05-1376-30nA 06/20/11 Solid GC51 05/31/11 06/01/11 110631L07 8-782' 08:38 23:26 Parameter Result RL DF Qual Parameter Result R!= DF Qual Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 79 50-135 2,4,5,6-Tetrachloro-m-Xylene 75 50-135 I r^L - r^i RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL(714) 895-5494 • F/\X: (714) 894-7501 Page 6 of 19 ^ alscience mm^ nvironmental aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 5 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected "^^trix Instrument Prepared Analyzed QC Batch ID s-e@2' 11-06-1376-32-A 06/20/11 Solid GC61 05/31/11 06/01/11 110631L07 s-e@2' 09:16 23:40 Parameter Result RL DE Qua! Parameter Result Rl, DE Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 79 50-135 2,4,5,6-Tetrachloro-m-Xylene 75 50-135 8-962' 11-05-1376-34nA 06/20/11 Solid GC61 05/31/11 06rtl1/11 110531L07 8-962' 09:46 23:56 Parameter Result RL DE Qual Parameter Result RL DE Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC NP 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 NP 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 78 50-135 2,4,5,6-Tetrachloro-m-Xylene 73 50-135 I KL - Kl IMAM RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440Lincoln Way, Garden Grove, CA 92841-1427 • TEL(714) 895-5494 • FAX: (714) 894-7501 Page 7 of 19 ~ alscience nvironmental ^ aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carisbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 6 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected "Matrix Instrument Prepared Analyzed QC Batch ID S-15@2' 11-05-1376-36rA 05/20/11 Solid GC51 06/31/11 06/02/11 110631L07 S-15@2' 11:55 00:09 Parameter Result RL DF Qual Parameter Result RL DE Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC NP 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor NP 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide NP 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC 1%) Control Qual Surroaates: Limits Limits Decachlorobiphenyl 60 50-135 2,4,5,6-Tetrachloro-m-Xylene 60 50-135 8-1662' 11-05-1376-3BnA 05/20/11 Solid GC 51 06^1/11 06/02/11 110631 LOT 8-1662' 12:20 00:23 Parameter Result RL DE Qua! Parameter Result R!= DE Qual Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 9.4 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 77 50-135 2,4,5,6-Tetrachloro-m-Xylene 74 50-135 I r^L - r^i RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL(714) 895-5494 • FAX: (714) 894-7501 Page 8 of 19 ^ alscience Sm^ nvironmental aboratories, Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 7 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected "^^trix Instrument Prepared Analyzed QC Batch ID 8-1762' 11-05-1376-407A 05/20/11 Solid GC61 05rai/ii 06/02/11 110531L07 12:40 00:38 Parameter Result RL DF Qual Parameter Result RL DE Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin NP 5.0 1 Chlordane ND 50 1 Endrin Aldehyde NP 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone NP 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC NP 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor NP 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide NP 5.0 1 Dieldrin ND 5.0 1 Methoxychlor NP 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene NP 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 78 50-135 2,4,5,6-Tetrachloro-m-Xylene 77 50-135 8-1862' 11-05-1376-42-A 05^0/11 Solid GC61 05/31/11 06/02/11 110631L07 13:00 00:62 Parameter Result RL DE Qual Parameter Result 5!= DE Qua! Aldrin ND 5.0 1 Endosulfan II NP 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate NP 5.0 1 Beta-BHC ND 5.0 1 Endrin NP 5.0 1 Chlordane ND 50 1 Endrin Aldehyde NP 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone NP 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC NP 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor NP 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 81 50-135 2,4,5,6-Tetrachloro-m-Xylene 75 50-135 I rtL - rti RL - Reporting Limit DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL(714) 895-5494 • FAX: (714) 894-7501 Page 9 of 19 iJ^ alscience nvironmental ^ aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 8 of 8 Client Sample Number Lab Sample Number Date/Time Collected Date Date/Time Matrix Instrument prepared Analyzed QC Batch ID IVIethod Blank 099-12-537-1,041 N/A Solid GC 61 06/31/11 06/01/11 17:53 110531L07 Parameter Result RL DE Qua! Parameter Result RL Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 Alpha-BHC ND 5.0 1 Endosulfan Sulfate NP 5.0 Beta-BHC ND 5.0 1 Endrin NP 5.0 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 4,4'-DDE ND 5.0 1 Gamma-BHC ND 5.0 4,4'-DDT NP 5.0 1 Heptachlor ND 5.0 Delta-BHC NP 5.0 1 Heptachlor Epoxide ND 5.0 Dieldrin NP 5.0 1 Methoxychlor ND 5.0 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 Surroaates: REC (%) Control Qual Surroaates: REC (%1 Control Limits REC (%1 Limits Decachlorobiphenyl 100 50-135 2,4,5,6-Tetrachloro-m-Xylene 105 50-135 DE Qual Qual I KL - K' IMAM RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 10 of 19 ^ alscience £_nvironmental Quality Control - Spike/Spike Duplicate ^ aboratories. Inc. GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Project Miles-Pacific, LP Quality Control Sample ID Matrix Instrument Pate Prepared Pate Analyzed MS/MSP Batch Number s-1262' Solid GC 51 05/31/11 06/01/11 110531807 Parameter MS %REC MSP %REC %REC CL RPP RPP CL Qualifiers Aldrin 79 75 50-135 5 0-25 Alpha-BHC 82 77 50-135 5 0-25 Beta-BHC 84 80 50-135 5 0-25 4,4'-DDD 80 76 50-135 5 0-25 4,4'-DDE 89 85 50-135 5 0-25 4,4'-DPT 93 87 50-135 7 0-25 Pelta-BHC 89 85 50-135 5 0-25 Pieldrin 81 76 50-135 6 0-25 Endosulfan 1 79 75 50-135 5 0-25 Endosulfan 11 87 82 50-135 5 0-25 Endosulfan Sulfate 81 77 50-135 6 0-25 Endrin 91 85 50-135 6 0-25 Endrin Aldehyde 64 58 50-135 10 0-25 Gamma-BHC 83 78 50-135 6 0-25 Heptachlor 83 79 50-135 5 0-25 Heptachlor Epoxide 68 66 50-135 3 0-25 Methoxychlor 87 81 50-135 7 0-25 I T\ru - r\ RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 11 of 19 ~ alscience S^nvironmental Quality Control - LCS/LCS Duplicate Mm aboratories. Inc. GeoSoils, Inc. Date Received: N/A 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Project: Miles-Pacific, LP Date Oate LCS/LCSD Batch Quality Control Sample IP Matrix Instrument Prepared Analyzed Number 099-12-637-1,041 Solid GC 51 05/31/11 06/01/11 110631LOT Parameter LCS %REC LCSD %REC %REC CL ME CL RPP RPD CL Qualifiers Aldrin 94 94 50-135 36-149 0 0-25 Alpha-BHC 96 95 50-135 36-149 0 0-25 Beta-BHC 99 98 50-135 36-149 1 0-25 4,4'-PPP 95 93 50-135 36-149 2 0-25 4,4'-PDE 99 99 50-135 36-149 0 0-25 4,4'-DDT 109 108 50-135 36-149 1 0-25 Delta-BHC 96 95 50-135 36-149 1 0-25 Dieldrin 93 94 50-135 36-149 1 0-25 Endosulfan 1 91 91 50-135 36-149 1 0-25 Endosulfan II 101 101 50-135 36-149 0 0-25 Endosulfan Sulfate 95 95 50-135 36-149 0 0-25 Endrin 100 102 50-135 36-149 2 0-25 Endrin Aldehyde 73 78 50-135 36-149 6 0-25 Gamma-BHC 99 98 50-135 36-149 1 0-25 Heptachlor 97 96 50-135 36-149 0 0-25 Heptachlor Epoxide 82 80 50-135 36-149 2 0-25 Methoxychlor 104 102 50-135 36-149 1 0-25 Total number of LCS compounds : 17 Total number of ME compounds : 0 Total number of ME compounds allowed : LCS ME CL validation result: Pass g T\ru - r IMAM RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 12 of 19 ~ alscience £_nvironmental ^ ^ , *• = Glossary of Terms and Qualifiers Sm aboratories. Inc. Work Order Number: 11-05-1376 Qualifier Definition * See applicable analysis comment. < Less than the indicated value. > Greater than the indicated value. 1 Surrogate compound recovery was out of control due to a required sample dilution, therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. 3 Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of control due to matrix interference. The associated LCS and/or LCSD was in control and, therefore, the sample data was reported without further clarification. 4 The MS/MSD RPD was out of control due to matrix interference. The LCS/LCSD RPD was in control and, therefore, the sample data was reported without further clarification. 5 The PDS/PDSD or PES/PESD associated with this batch of samples was out of control due to a matrix interference effect. The associated batch LCS/LCSD was in control and, hence, the associated sample data was reported without further clarification. 6 Surrogate recovery below the acceptance limit. 7 Surrogate recovery above the acceptance limit. B Analyte was present in the associated method blank. BU Sample analyzed after holding time expired. E Concentration exceeds the calibration range. ET Sample was extracted past end of recommended max. holding time. J Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. ME LCS Recovery Percentage is within LCS ME Control Limit range. ND Parameter not detected at the indicated reporting limit. Q Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. X % Recovery and/or RPD out-of-range. Z Analyte presence was not confirmed by second column or GC/MS analysis. Solid - Unless othenwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. IUAM 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • F/\X: (714) 894-7501 Calscience Environmental Laboratories, Inc. ^^SoCal Laboratory 7440 Lincoln Wav 7440 Lincoln Way Garden Grove, CA 92841-1427 (714) 895-5494 NorCal Service Center 5063 Commercial Circle, Suite H Concord, CA 94520-8577 (925) 689-9022 CHAIN OF CUSTODY RECORD Date. Page_ JL .of_ LABORATORY CLIENT:^, CLIENT PROJECT NAME / NUMBER: P.O. NO.: ^ar/, /- sc ADDRESS: _ A / PROJECT CONTACT: LAB USE ONLY (^ - DQ [i&a CITY ^ , ) / STATE ZIP QjMha <L Cc, 0~ZOit^ 0Akxni pn/^\> /nnikif^ LAB USE ONLY (^ - DQ [i&a l-yiX>)f38'l!/<^ to\^Q^feoe,o/6.^^.co^ SAMPLER(S). (PRINT) .^OELT LOG CODE • ••• COOLER RECEiPT TEMP= "C TURNAROUND TIME: ' • SAME DAY • 24 HR • 48 HR • 72 HR • 5 DAYS • 10 DAYS REQUESTED ANALYSES SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) n RWQCB REPORTING FORMS • COELT EDF ("1 (6) Hdl TPH (d) or (C7-C36) or (C7-C44) ( )Hdi BTEX/MTBE(8260B) VOCs(8260B) VXs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pesticides (8181 A) PCBs (8082) PNAs(8310)or(8270C) T22 Metals (6010B/747X) Cr(VI)[7196Aor 7199 or 218.61 VXs (TO-14A)or(TO-15) CO 1 Sl X Q. 1— SPECIAL INSTRUCTIONS: U*v- cv**^(i Pllr- Pct^rtJ t 2. . ^rOJtCO^d *X^^ 'oai<u^ \ OAri Z (6) Hdl TPH (d) or (C7-C36) or (C7-C44) ( )Hdi BTEX/MTBE(8260B) VOCs(8260B) VXs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pesticides (8181 A) PCBs (8082) PNAs(8310)or(8270C) T22 Metals (6010B/747X) Cr(VI)[7196Aor 7199 or 218.61 VXs (TO-14A)or(TO-15) CO 1 Sl X Q. 1— LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EOF) SAMPLING MATRIX NO. OF CONT. (6) Hdl TPH (d) or (C7-C36) or (C7-C44) ( )Hdi BTEX/MTBE(8260B) VOCs(8260B) VXs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pesticides (8181 A) PCBs (8082) PNAs(8310)or(8270C) T22 Metals (6010B/747X) Cr(VI)[7196Aor 7199 or 218.61 VXs (TO-14A)or(TO-15) CO 1 Sl X Q. 1— LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EOF) DATE TIME MATRIX NO. OF CONT. (6) Hdl TPH (d) or (C7-C36) or (C7-C44) ( )Hdi BTEX/MTBE(8260B) VOCs(8260B) VXs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pesticides (8181 A) PCBs (8082) PNAs(8310)or(8270C) T22 Metals (6010B/747X) Cr(VI)[7196Aor 7199 or 218.61 VXs (TO-14A)or(TO-15) CO 1 Sl X Q. 1— i 1 1 1 ! 1^ \ -\— f If s-7 P 1 Sr ^tco \ ci\ic> 1 e as' ID'. IS / 5-12, e os' 1 ft? /r.oo \ Date: / / Time: . by: (Signature/Affiliau6n) DatJ Relinquished by: (Signature) Received Time: DISTRIBUTION: White with final report. Green and Yellow to Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision Calsgience Environmental Laboratories, Inc. ATSoCal Laboratory rn NorCal Service Center rr 7440 Lincoln Way 5063 Commercial Circle, Suite H ^ Garden Grove, CA 92841-1427 Concord, CA 94520-8577 (714) 895-5494 (925) 689-9022 CHAIN OF CUSTODY RECORD Date 2^1 11 Page ^ of ^ LABORATORY CLIENT ADDRESS: CITY STATE ZIP TEL: E-MAIL: CLIENT PROJECT NAME / NUMBER: PROJECT CONTACT: SAMPLER(S): (PRINT) COELT LOG CODE • ••• P.O. NO.: E62Jk LAB USE ONLY COOLER RECEIPT TEMP= TURNAROUND TIME: • SAME DAY • 24 HR • 48 HR • 72 HR • 5 DAYS • 10 DAYS REQUESTED ANALYSES SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF • SPECIAL INSTRUCTIONS: \^uu^ -A>-^ £iiMu>^d P^e> lain c/ 2 • LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EDF) SAMPLING DATE TIME MATRIX NO. OF CONT. Q. a? o. <1> 8 o < (O > CO 6 t. X Q. II 1 20 1 X 6-IS (g 0.5: 5/g> X 6- tu e 0.5 X S4 7 CM O <^ STI 40) oo .8 Reilnqui^trej^ by: (Signature) Receivedyky: nature/Affiliation) Date: 5, Time: 4^ Received by: (Signatilfe/Affiliation; Relinquished by: (Signature) Received by: (Signatuie/AffiliMlbn) Date:/ , DaWh ^ Time: DISTRIBUTION: White virith final report, Green and Yellow to Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision Calscience Environmental Laboratories, Inc. SoCal Laboratory 7440 Lincoln Way Garden Grove, CA 92841-1427 (714) 895-5494 LABORATORY CLIENT: ADDRESS: Q NorCal Service Center 5063 Commercial Circle, SuNe H Concord, CA 94520-8577 (925) 689-9022 CHAIN OF CUSTODY RECORD Date 57, Page. CITY STATE ZIP TEL: E-MAIL: TURNAROUND TIME: • SAIVIE DAY •24HR •48HR • 72 HR • 5 DAYS • 10 DAYS SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF fl s X OL h-TPH (d)or(C7-C36)or(C7-C44) I )Hdi BTEX/MTBE (8260B) VOCs(8260B) VOCs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pestiddes (8181A) PCBs (8082) PNAs (8310)or(8270C) T22 Metals (6010B/747X) Cr(Vl)[7196Aor 7199 or 218.6] Si O g, CO O TPHfa^[T0-3|+ SPECIAL INSTRUCTIONS: s X OL h-TPH (d)or(C7-C36)or(C7-C44) I )Hdi BTEX/MTBE (8260B) VOCs(8260B) VOCs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pestiddes (8181A) PCBs (8082) PNAs (8310)or(8270C) T22 Metals (6010B/747X) Cr(Vl)[7196Aor 7199 or 218.6] Si O g, CO O TPHfa^[T0-3|+ LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EDF) SAMPLING MATRIX NO. OF CONT. s X OL h-TPH (d)or(C7-C36)or(C7-C44) I )Hdi BTEX/MTBE (8260B) VOCs(8260B) VOCs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pestiddes (8181A) PCBs (8082) PNAs (8310)or(8270C) T22 Metals (6010B/747X) Cr(Vl)[7196Aor 7199 or 218.6] Si O g, CO O TPHfa^[T0-3|+ LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EDF) DATE TIME MATRIX NO. OF CONT. s X OL h-TPH (d)or(C7-C36)or(C7-C44) I )Hdi BTEX/MTBE (8260B) VOCs(8260B) VOCs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pestiddes (8181A) PCBs (8082) PNAs (8310)or(8270C) T22 Metals (6010B/747X) Cr(Vl)[7196Aor 7199 or 218.6] Si O g, CO O TPHfa^[T0-3|+ ii> 1 X \y lCi\il tt ^-11^2,' 10'.2S I X ^HZP1' io:3sr 1 X 1 K y ll".o5 1 ll\\t> 1 ^-^ \l\70 1 1 >c \v.S> 1 CLIENT PROJECT NAME / NUMBER: PROJECT CONTACT: SAMPLER(^: (PRINT) /g^V.W l/<ys COELT LOG CODE • ••• P.O. NO,: LAB USE ONLY COOLER RECEIPT TEMP=_ REQUESTED ANALYSES anature/Affili^tion; Received tff , (Signature/Affiliation) / ai3n) Date:. Date:/ / Time: Time g o> §•0 o Relinquished by: (Signature) Received by; (Signature/Affiliaion) Time: DISTRIBUTION: V\/hite with final report, Green and Yellow to Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision Calscience Environmental Laboratories, Inc. r/SoCal Laboratory rj NorCal Service Center 7440 Lincoln Way 5063 Commercial Circie, Suite H Garden Grove, CA 92841-1427 Concord, 94520-8577 (714) 895-5494 (925) 689-9022 CHAIN OF CUSTODY RECORD Date 5/2D/li Page ^ of S" LABORATORY CLIENT: ADDRESS: CITY STATE ZIP TEL: E-MAIL: TURNAROUND TIME: • SAME DAY • 24 HR • 48 HR • 72 HR 0 5 DAYS • 10 DAYS CLIENT PROJECT NAME / NUMBER: PROJECT CONTACT: SAMPLERiS): (PRINT) COELT LOG CODE • ••• P.O. NO.: ^6ZIU- UB USE ONLY COOLER RECEIPT TEMP= °C REQUESTED ANALYSES SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF Fl X Q. 1— TPH(d)or(C7-C36)or(C7-C44) I )Hdi (80928) 381W/X318 VOCs(8260B) VOCs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pesticides (8181 A) PCBs (8082) PNAs (8310) or (8270C) T22 Metals (6010B/747X) Cr(Vl)[7196Aor 7199 or 218.6] VOCs (TO-14A)or(TO-15) TPH (a)rro-3i+ SPECIAL INSTRUCTIONS: X Q. 1— TPH(d)or(C7-C36)or(C7-C44) I )Hdi (80928) 381W/X318 VOCs(8260B) VOCs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pesticides (8181 A) PCBs (8082) PNAs (8310) or (8270C) T22 Metals (6010B/747X) Cr(Vl)[7196Aor 7199 or 218.6] VOCs (TO-14A)or(TO-15) TPH (a)rro-3i+ LAB USE ONLY SAiVIPLE ID FIELD POINT NAME (FOR COELT EDF) SAMPLING MATRIX NO. OF CONT. X Q. 1— TPH(d)or(C7-C36)or(C7-C44) I )Hdi (80928) 381W/X318 VOCs(8260B) VOCs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pesticides (8181 A) PCBs (8082) PNAs (8310) or (8270C) T22 Metals (6010B/747X) Cr(Vl)[7196Aor 7199 or 218.6] VOCs (TO-14A)or(TO-15) TPH (a)rro-3i+ LAB USE ONLY SAiVIPLE ID FIELD POINT NAME (FOR COELT EDF) DATE TIME MATRIX NO. OF CONT. X Q. 1— TPH(d)or(C7-C36)or(C7-C44) I )Hdi (80928) 381W/X318 VOCs(8260B) VOCs+Oxys(8260B) Encore Prep (5035) SVOCs (8270C) Pesticides (8181 A) PCBs (8082) PNAs (8310) or (8270C) T22 Metals (6010B/747X) Cr(Vl)[7196Aor 7199 or 218.6] VOCs (TO-14A)or(TO-15) TPH (a)rro-3i+ 5-1 p 2' 5/2) / s< 1 I X ^ ) 1 1 QUS 1 n } / X ^'ib P. 1' / / X at A a "0 5 0) S CD Relinquished by: (Signatun Received DatSf Time: Time: DISTRIBUTION: White with final report, Green and Yellow to Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision Q Cajscience Environmental Laboratories, Inc. Q NorCal Service Center 5063 Commercial Circle, SuHe H Concord. CA 94520-8577 (925) 689-9022 SoCal Laboratory 7440 Lincoln Way Garden Grove, CA 92841-1427 (714) 895-5494 CHAIN OF CUSTODY RECORD Date Page_ ^ of =51 LABORATORY CLIENT: ADDRESS: CITY 6^ STATE ZIP TEL: E-MAIL: TURNAROUND TIME: • SAME DAY • 24 HR • 48 HR • 72 HR • 5 DAYS • 10 DAYS CLIENT PROJECTNAME / NUMBER COELT LOG CODE • ••• P.O. NO.: LAB USE ONLY COOLER RECEIPT TEMP« REQUESTED ANALYSES SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF • . SPECIAL INSTRUCTIONS: LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EDF) SAMPLING DATE TIME MATRIX NO OF CONT. 3: Q. o > 6 7!> X I2M7 IZ'.ZO I-(JO DISTRIBUTION: White with final report, Green and Yellow to Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision CLIENT: Page 18 of 19 WORK ORDER #: 11 -05- CZ] H S Cooler / of I SAMPLE RECEIPT FORM DATE. 05/U)/11 TEMPERATURE: Thermometer ID: SCI (Criteria: 0.0°C - 6.0°C, not frozen) X Temperature °C + 0.5°C (CF) = t^. °C l3^lank • Sample • Sample(s) outside temperature criteria (PM/APM contacted by: ). • Sample(s) outside temperature criteria but received on ice/chilled on same day of sampling. • Received at ambient temperature, placed on ice for transport by Courier. Ambient Temperature: • Air • Filter Initial: CUSTODY SEALS INTACT: • Cooler • • Sample • ._ a No (Not Intact) • No (Not Intact) Not Present J^ot Present • N/A itial: Alj Initial Initial SAMPLE CONDITION: Ves No N/A Chain-Of-Custody (COC) document(s) received with samples • • COC document(s) received complete 0' • • • Collection date/time, matrix, and/or # of containers logged in based on sample labels. • No analysis requested. • Not relinquished. • No date/time relinquished. Sampler's name indicated on COC • Sample container label(s) consistent with COC • • Sample container(s) intact and good condition • • Proper containers and sufficient volume for analyses requested [/ • • Analyses received within holding time : .jzr • • pH / Res. Chlorine / Diss. Sulfide / Diss. Oxygen received within 24 hours. . • • Proper preservation noted on COC or sample container • • • Unpreserved vials received for Volatiles analysis Volatile analysis container(s) free of headspace • • Tedlar bag(s) free of condensation • • CONTAINER TYPE: Solid: zf4ozCGJ DSozCGJ DieozCGJ DSIeeve ( ) DEnCores® DTerraCores® D Water: DVOA DVOAh DVOAnaj D125AGB D125AGBh D125AGBp DIAGB DIAGBnaz DIAGBs D500AGB D500AGJ D500AGJs D250AGB D250CGB D250CGBs DIPB D500PB D500PBna D250PB D250PBn D125PB D125PBznna D100PJ DlOOPJnaj D D D Air: DTedlar® DSumma® Other: D Trip Blank Lot#: Labeled/Checked by: \};}^ Container: C: Clear A: Amber P: Plastic G: Glass J: Jar B: Bottle Z: Ziploc/Resealable Bag E: Envelope Reviewed by: C^^^ Preservative: h: HCL n: HNO3 naztNajSzOs na: NaOH p: H3PO4 s: H2SO4 znna: ZnAc2+Na0H f: Field-filtered Scanned by: ^ SOP T100_090 (03/24/11) Page 19 of 19 •L-rf^irmfirrffrn lme. WORK ORDER #: 11 -05- [3 [11 @ 0 SAMPLE ANOMALY FORM SAMPLES - CONTAINERS & LABELS: • Sample(s)/Container(s) NOT RECEIVED but listed on COC • Sample(s)/Container(s) received but NOT LISTED on COC • Holding time expired - list sample ID(s) and test • Insufficient quantities for analysis - list test • Improper container(s) used - list test • Improper preservative used - list test • No preservative noted on COC or label - list test & notify lab • Sample labels illegible - note test/container type IzTsample label(s) do not match COC - Note in comments [Z^Sample ID • Date and/or Time Collected • Project Information • # of Container(s) • Analysis • Sample container(s) compromised - Note in comments • Water present in sample container • Broken • Sample container(s) not labeled • Air sample contalner(s) compromised - Note in comments • Flat • Very low in volume • Leaking (Not transferred - duplicate bag submitted) • Leaking (transferred into Calscience Tedlar® Bag*) • Leaking (transferred into Client's Tedlar® Bag*) • Other: Comments: HEADSPACE - Containers with Bubble > 6mm or inch: Sample # Container ID<S) « of Vials Received Sample # Container ID(s) # of Vials Received Sample # Container ID(s) tn of Cont. received Analysis Comments: *Transferred at Client's request. Initial /Date: ^-L 05 SOPT100_090 (09/17/10) _^ Page 1 of 19 ~ alscience Sm= nvironmental Mm aboratories, Inc. May 26, 2011 Bryan Voss GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Subject: Calscience Work Order No.: 11 -05-1376 Client Reference: Miles-Pacific, LP Dear Client: Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 5/20/2011 and analyzed in accordance with the attached chaln-of-custody. Calscience Environmental Laboratories certifies that the test results provided in this report meet all NELAC requirements for parameters for which accreditation is required or available. Any exceptions to NELAC requirements are noted in the case narrative. The original report of subcontracted analysis, if any, is provided herein, and follows the standard Calscience data package. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety. If you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, Calscience Environmental Laboratories. Inc. Richard Villafania Project Manager NELAP ID: 03220CA • DoD-ELAP ID: L10-41 • CSDLACID: 10109 • SCAQMD ID: 93LA0830 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 • ^ alscience nvironmental aboratories. Inc. Analytical Report Page 2 of 19 GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carisbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 1 of 8 Client Sample Number Lab Sample Number Date/Time Collected Matrix Date Instrument Prepared Date/Time Analyzed QC Batch ID s-iei' 11-06-1376-1^ 05/20/11 Solid GC61 06/23/11 05/24/11 110623L12 s-iei' 08:00 17:37 Parameter Result RL DF Qual Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 19 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 350 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Surroaates: Limits Limits Decachlorobiphenyl 88 50-135 2,4,5,6-Tetrachloro-m-Xylene 85 50-135 s-agr 11-05-1376-2-A 05/a)/11 Solid GC 61 06/23/11 05/24/11 110623L12 s-agr 08:10 17:61 Parameter Result RL DF Qual Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5,0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 86 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 170 50 10 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 4900 1000 10 Surrogates: REC (%1 Control Qual Surroaates: REC (%) Control Qual Surrogates: REC (%1 Limits Limits Decachlorobiphenyl 89 50-135 2,4,5,6-Tetrachloro-m-Xylene 87 50-135 I KL - Kl RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL(714) 895-5494 • FAX: (714) 894-7501 Page 3 of 19 ^ alscience Sm^ nvironmental aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carisbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 2 of 8 Client Sample Number Lab Sample Number Date/Time Collected Matrix Date Date/Time Instrument Prepared Analyzed Batch ID s-6ei-11-06-1376-3-A 06/20/11 08:20 Solid GC 61 06/23/11 06/24/11 18:06 110623L12 Parameter Result RL DF Qua! Parameter Result R!L DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5,0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 250 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 200 50 10 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 2100 1000 10 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Surroaates: Limits Limits Decachlorobiphenyl 77 50-135 2,4,5,6-Tetrachloro-m-Xylene 78 50-135 S-7e0.6' 11-06-1376-4-A 06/20/11 Solid GC61 06/23/11 05/26/11 110623L12 S-7e0.6' 08:30 10:66 Parameter Result RL DF Qua! Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan II ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 380 250 50 Gamma-BHC ND 5.0 1 4,4'-DDT 910 250 50 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 10000 5000 50 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Surroaates: Limits Limits Decachlorobiphenyl 69 50-135 2,4,5,6-Tetrachloro-m-Xylene 58 50-135 I KL - Kl RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 4 of 19 _ alscience nvironmental aboratories. Inc. Analytical Report GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Project: Miles-Pacific, LP Date Received: Work Order No: Preparation: Method: Units: 05/20/11 11-05-1376 EPA 3545 EPA 8081A ug/kg Page 3 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected ^^^"^ Instrument Prepared Analyzed QC Batch ID S-8@0.6' 11-06-1376-6-A 06/20/11 Solid GC61 06/23/11 06/24/11 110623L12 09:00 18:36 Parameter Result RL DF Qua! Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 320 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 1300 500 100 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 15000 1000 10 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 71 50-135 2,4,5,6-Tetrachloro-m-Xylene 69 50-135 S-9e0.6' 11-06-1376-6^ 06/20/11 Solid GC61 06/23/11 06/24/11 110623L12 09:30 18:60 Parameter Result RL DF Qual Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan II ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 220 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 950 250 50 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 9000 1000 10 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 79 50-135 2,4,5,6-Tetrachloro-m-Xylene 82 50-135 I r\L. - n RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL(714) 895-5494 • FAX: (714) 894-7501 Page 5 of 19 ^ alscience Mm^ nvironmental " aboratories. Inc. Analytical Report GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Project: Miles-Pacific, LP Date Received: Work Order No: Preparation: Method: Units: 05/20/11 11-05-1376 EPA 3545 EPA 8081A ug/kg Page 4 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected "^^'^ix Instrument Prepared Analyzed QQ ^^tch ID S-10@0.6-11-06-1376-7^ 0600/11 Solid GC61 06/23/11 06/24/11 110623L12 09:60 19:04 Parameter Result RL DF Qua! Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 130 100 20 Gamma-BHC ND 5.0 1 4,4'-DDT 420 100 20 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 5400 2000 20 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 68 50-135 2,4,5,6-Tetrachloro-m-Xylene 69 50-135 s-iieo.6' 11-06-1376-e-A 06/20/11 Solid GC61 06/23/11 06/24/11 110623L12 10:16 19:18 Parameter Result RL DF Qua! Parameter Result R!, DF Qua! Aldrin ND 5.0 1 Endosulfan II ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 160 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 300 50 10 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 4500 1000 10 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 50 50-135 2,4,5,6-Tetrachloro-m-Xylene 50 50-135 I - Kl RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 6 of 19 ^ alscience ML nvironmental " aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carisbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 5 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected ^^^"^ Instrument Prepared Analyzed QQ ^a'^h ID S-12e0.6' 11-06-1376-9-A 06/2U)/11 Solid GC61 05^3/11 06/24/11 110623L12 10:30 19:33 Parameter Result RL DF Qua! Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 54 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 340 50 10 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 4600 1000 10 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 84 50-135 2,4,5,6-Tetrachloro-m-Xylene 88 50-135 S-13e0.6-11-06-1376-10^ 06/20/11 Solid GC61 06/23/11 06/24/11 110623L12 11:00 19:47 Parameter Result RL DF Qua! Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 280 100 20 Gamma-BHC ND 5.0 1 4,4'-DDT 380 100 20 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 4600 2000 20 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 61 50-135 2,4,5,6-Tetrachloro-m-Xylene 72 50-135 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 7 of 19 ^ alscience nvironmental ^ aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 6 of 8 Client Sample Number Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected ^^^"^ Instrument Prepared Analyzed QQ Batch ID S-14@0.6' 11-05-1376-11-A 06/20/11 Solid GC61 05/23/11 06/24/11 110623L12 11:16 20:01 Parameter Result RL DF Qua! Parameter Result RL DE Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 150 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 160 50 10 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 1900 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits REC (%) Limits Qual Decachlorobiphenyl 75 50-135 2,4,5,6-Tetrachloro-m-Xylene 83 50-135 S-16S0.6-11-06-1376-12nA 06/20/11 Solid GC 61 06/23/11 06/24/11 110623L12 11:46 20:16 Parameter Result RL DF Qual Parameter Result RL DF Qual Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 Beta-BHC ND 5.0 1 Endrin ND 5.0 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 4,4'-DDE 180 50 10 Gamma-BHC ND 5.0 4,4'-DDT 200 50 10 Heptachlor ND 5.0 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 Endosulfan 1 ND 5.0 1 Toxaphene 1900 100 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits REC (%) Limits Qual Decachlorobiphenyl 77 50-135 2,4,5,6-Tetrachloro-m-Xylene 81 50-135 RL - Reporting Limit , DF - Dilution Factor . Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 8 of 19 ^ alscience &L nvironmental *• aboratories. Inc. Analytical Report GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Project: Miles-Pacific, LP Date Received: Work Order No: Preparation: Method: Units: 05/20/11 11-05-1376 EPA 3545 EPA 8081A ug/kg Page 7 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected ^^^"^ Instrument Prepared Analyzed QC Batch ID S-16e0.6' 11-06-1376-13rA 06/20/11 Solid GC61 0603/11 06/24/11 110623L12 12:16 20:30 Parameter Result RL DF Qua] Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 280 100 20 Gamma-BHC ND 5.0 1 4,4'-DDT 390 100 20 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 5100 2000 20 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 77 50-135 2,4,5,6-Tetrachloro-m-Xylene 83 50-135 S-17e0.6' 11-06-1376-14-A 0600/11 Solid GC61 06O3M1 06/24/11 110623L12 12:30 20:46 Parameter Result RL DF Qua! Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 66 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 280 50 10 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 4400 1000 10 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 70 50-135 2,4,5,6-Tetrachloro-m-Xylene 75 50-135 nmAkA RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 9 of 19 alscience nvironmental aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 8 of 8 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected Instrument Prepared Analyzed QC Batch ID S-18e0.6' 11-06-1376-164 06/20/11 Solid GC61 0603/11 06/24/11 110623L12 12:46 20:69 Parameter Result RL DF Qua! Parameter Result R!= DE Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 180 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 280 50 10 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 3600 1000 10 Surroaates: REC (%) Control Qual Surroaates: REC (%1 Control Qual Limits Limits Decachlorobiphenyl 77 50-135 2,4,5,6-Tetrachloro-m-Xylene 76 50-135 Method Blank 099-12-637-1,029 N/A Solid GC 61 0603/11 06/24/11 110623L12 16:26 Parameter Result RL DF Qual Parameter Result RL DE Qua! Aldrin ND 5.0 1 Endosulfan II ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 94 50-135 2,4,5,6-Tetrachloro-m-Xylene 97 50-135 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 10 of 19 ^ alscience ^jivironmental Quality Control - Spike/Spike Duplicate ^ aboratories. Inc. GeoSoils, Inc. Date Received: 05/20/11 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation Method: EPA 3545 EPA 8081A Proiect Miles-Pacific, LP Quality Control Sample ID Matrix Instalment Date Prepared Date Analyzed MS/MSD Batch Number s-igi-Solid GC 61 0603/11 0604/11 110623S12 Parameter MS %REC MSD %REC %REC CL RPD RPDCL Qualifiers Aldrin 69 67 50-135 2 0-25 Alpha-BHC 69 67 50-135 4 0-25 Beta-BHC 73 62 50-135 16 0-25 4,4'-DDD 104 92 50-135 12 0-25 4,4'-DDE 77 85 50-135 5 0-25 4,4'-DDT 184 195 50-135 6 0-25 3 Delta-BHC 66 64 50-135 4 0-25 Dieldrin 100 101 50-135 2 0-25 Endosulfan 1 85 85 50-135 0 0-25 Endosulfan 11 165 171 50-135 4 0-25 3 Endosulfan Sulfate 126 132 50-135 5 0-25 Endrin 107 108 50-135 1 0-25 Endrin Aldehyde 119 122 50-135 2 0-25 Gamma-BHC 71 67 50-135 6 0-25 Heptachlor 71 68 50-135 3 0-25 Heptachlor Epoxide 66 67 50-135 0 0-25 Methoxychlor 102 103 50-135 1 0-25 RPD - Relative Percent Difference , CL - Conlrol Limit 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . F/^: (714) 894-7501 Page 11 of 19 ^ alscience S^nvironmental Quality Control - LCS/LCS Duplicate A* aboratories. Inc. GeoSoils, Inc. Date Received: N/A 5741 Palmer Way Work Order No: 11-05-1376 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Project: Miles-Pacific, LP Quality Control Sample ID Matrix Instmment Date Prepared Date Analyzed LCS/LCSD Batch Number 099-12-637-1,029 Solid GC 61 06/23/11 0604/11 110623L12 Parameter LCS %REC LCSD %REC %REC CL ME CL RPD RPD CL Qualifiers Aldrin 65 66 50-135 36-149 1 0-25 Alpha-BHC 65 65 50-135 36-149 0 0-25 Beta-BHC 68 68 50-135 36-149 1 0-25 4,4'-DDD 68 68 50-135 36-149 0 0-25 4,4'-DDE 69 70 50-135 36-149 1 0-25 4,4'-DDT 72 73 50-135 36-149 1 0-25 Delta-BHC 62 62 50-135 36-149 0 0-25 Dieldrin 64 65 50-135 36-149 1 0-25 Endosulfan 1 66 66 50-135 36-149 1 0-25 Endosulfan 11 75 76 50-135 36-149 1 0-25 Endosulfan Sulfate 71 71 50-135 36-149 1 0-25 Endrin 69 70 50-135 36-149 2 0-25 Endrin Aldehyde 55 57 50-135 36-149 3 0-25 Gamma-BHC 67 67 50-135 36-149 1 0-25 Heptachlor 66 67 50-135 36-149 1 0-25 Heptachlor Epoxide 56 57 50-135 36-149 1 0-25 Methoxychlor 70 70 50-135 36-149 0 0-25 Total number of LCS compounds : 17 Total number of ME compounds : 0 Total number of ME compounds allowed : LCS ME CL validation result: Pass M T\ru - r RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 12 of 19 ~ alscience Sm nvironmental ^, j i-r-^= Glossary of Terms and Qualifiers ^ aboratories. Inc. Work Order Number: 11-05-1376 Qualifier Definition * See applicable analysis comment. < Less than the indicated value. > Greater than the indicated value. 1 Surrogate compound recovery was out of control due to a required sample dilution, therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. 3 Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of control due to matrix interference. The associated LCS and/or LCSD was in control and, therefore, the sample data was reported without further clarification. 4 The MS/MSD RPD was out of control due to matrix interference. The LCS/LCSD RPD was in control and, therefore, the sample data was reported without further clarification. 5 The PDS/PDSD or PES/PESD associated with this batch of samples was out of control due to a matrix interference effect. The associated batch LCS/LCSD was in control and, hence, the associated sample data was reported without further clarification. 6 Surrogate recovery below the acceptance limit. 7 Surrogate recovery above the acceptance limit. B Analyte was present in the associated method blank. BU Sample analyzed after holding time expired. E Concentration exceeds the calibration range. ET Sample was extracted past end of recommended max. holding time. J Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. ME LCS Recovery Percentage is within LCS ME Control Limit range. ND Parameter not detected at the indicated reporting limit. Q Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. X % Recovery and/or RPD out-of-range. Z Analyte presence was not confirmed by second column or GC/MS analysis. Solid - Unless othenwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Q Calscience Environmental Laboratories, Inc. ^ySoCal Laboratory ri NorCal Service Center Mm^ 7440 Lincoln Way 5063 Commercial Circle, Suite H ^ Garden Grove, CA 92841-1427 Concord, CA 94520-8577 CHAIN OF CUSTODY RECORD (714) 895-5494 (925) 689-9022 Date Page_ .of LABORATORY CLIENT ADDRESS: CITY STATE ZIP URNAROUND TIME: CLIENT PROJECT NAME / NUMBER: PROJECT CONTACT SAMPLER(S): (PRINT) COELT LOG CODE • ••• P.O. NO.: LAB USE ONLY OEF-DO a S-S COOLER RECEIPT TEMP= -"C TURNAROUND TIME: • SAME DAY • 24 HR • 48 HR • 72 HR • 5 DAYS • 10 DAYS REQUESTED ANALYSES SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF • . SPECIAL INSTRUCTIONS: LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EDF) \ c*V 2.. SAMPLING DATE TIME MATRIX NO. OF CONT. 2 CQ O <o CM OO tn I- CO o to CX £ Q. LU oo' CN o s k— O i > o CO E CJ) s-1 o I '20 eo S-^ d D.S ' s-ti e as ID'. IS 1 O r>- I <o STJ 4 fl) ft? Reij BaWflJijishei Received by: (Signature/Affiliation) Date: Date: / / Time: Time: . Received by: ffiigiunure/Affiflation) by: (Signature/Z^ffiliavon) uatej/ >• DaiJt ^ o 2 <-w O O a CD Relinquished by: (Signature) Received Time; DISTRIBUTION: White with final report, Green and Yellow to Clieni. Piease note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision 4L. Calsgience Environmental Laboratories, Inc. jer Al^Cal Laboratory r] NorCal Service Center ( ) 7440 Lincoln Way 5063 Commercial Circle, Suite H B ^ Garden Grove, CA 92841-1427 Concord, CA 94520-8577 (714) 895-5494 (925) 689-9022 CHAIN OF CUSTODY RECORD Date ;^^/// Page I? of LABORATORY CLIENT ADDRESS: CITY STATE ZIP TEL: E-MAIL: CUENT PROJECT NAME / NUMBER: PROJECT CONTACT: SAMPLER(S): (PRINT) COELT LOG CODE • ••• P.O NO: i£62Jk LABUSEONLY COOLER RECEIPT TEMP= TURNAROUND TIME: • SAME DAY •24HR • 48 HR • 72 HR • 5 DAYS QIO DAYS REQUESTED ANALYSES SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF • SPECIAL INSTRUCTIONS: \^oi;<'4xj>'^ CiiAju^^d -JtAT pa^e> I a/) c/ 2- LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EDF) SAMPLING DATE TIME NO. OF CONT. Q. 8 CO o CO oo 5? O + o o > i5? CL CO oo .r—' CM b cn cn o < CO cn E. O CO Sl • •• '--^ 5/a> X 1^ eo izur If l2\io y X 54 J CM O t^ O) Rellnqui^tiej^ by: (Signature) Receivedyby: (Signature/Affiliation) Date: Time: 4^ O) -n oo oa —^ OCD Received by: (Signatilfe/Affiliation; bate:/ , Daw! ' Relinquished by: (Signature) Received by: (Signature/Affili^n) 'II Time: DISTRIBUTION: While with final report, Green and Yellow fo Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision Q Calscience Environmental Laboratories, Inc. m SoCal Laboratory Q NorCal Sewice Center Sr_ ' 7440 Lincoln Way 5063 Commercial Circle, Suite H £^ Garden Grove, CA 92841-1427 Concord, CA 94520-8577 CHAIN OF CUSTODY RECORD Date (714) 895-5494 (925) 689-9022 Page_ .of_ LABORATORY CLIENT: CUENT PROJECT NAME / NUMBER: P.O. NO,: ADDRESS: PROJECT CONTACT: LAB USE ONLY CITY STATE ZIP PROJECT CONTACT: LAB USE ONLY CITY STATE ZIP SAMPLER(|): (PRINT) ^ COELT LOG CODE • ••• COOLER RECEIPT TEMP= °C TEL: E-MAIL: SAMPLER(|): (PRINT) ^ COELT LOG CODE • ••• COOLER RECEIPT TEMP= °C TURNAROUND TIME: • SAME DAY •24HR •48HR • 72 HR • 5 DAYS DIO DAYS REQUESTED ANALYSES SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF • . SPECIAL INSTRUCTIONS: CO 6 t. "35 (ft DISTRIBUTION: White with final report, Green and Yellow to Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision o o> c^ 2 "0 1^ CD .o OO Calscience Environmental Laboratories, inc. \^ SoCal Laboratory Q ' 7440 Lincoln Way Garden Grove, CA 92841-1427 (714) 895-5494 NorCal Service Center 5063 Commercial Circie, Suite H Concord. CA 94520-8577 (925) 689-9022 CHAIN OF CUSTODY RECORD Date c5/2fc>//^ Page, .of_ ADDRESS: CITY STATE ZIP TEL: E-MAIL: TURNAROUND TIME: • SAME DAY • 24 HR • 48HR •72HR • 5 DAYS GIO DAYS SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) n RWQCB REPORTING FORMS • COELT EDF l~l SPECIAL INSTRUCTIONS: LABORATORY CLIENT: CLIENT PROJECT NAME / NUMBER: PROJECT CONTACT: u, A>vi AMPLER^g) SAMPLER^): (PRINT) COELT LOG CODE • ••• P.O. NO.: LAB USE ONLY COOLER RECEIPT TEMP= JC REQUESTED ANALYSES LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EDF) SAMPLING DATE TIME MATRIX NO. OF CONT. m o CO CM CO in CO o 1£5 CL CL O O O T— o CO in S o o> > o CO 6 "55 5Ao 2 5/^ s< I QltS 5^ X Received by: (Signature/Affiliation) 9,^1 k. W[ri^c Affiliation) / Received by: (Siginture/Affiliation) / by: (Signature/AffiliatiM) Date: , y Time: Datir Time: Relinquished by: (Signatun Received Time: DISTRIBUTION: White with final report. Green and Yellow to Qient. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision Q Calscience Environmental Laboratories, Inc SoCal Laboratoiy 7440 Lincoln Way Garden Grove, CA 92841-1427 (714) 895-5494 NorCal Senrice Center 5063 Commercial Circle, Suite H Concord, CA 94520-8577 (925) 689-9022 CHAIN OF CUSTODY RECORD Date Page_ £ of =51 LABORATORY CLIENT: ADDRESS: CITY STATE ZIP TEL E-MAIL: CLIENT PROJECTNAME / NUMBER: COELT LOG CODE • ••• P.O. NO.: LAB USE ONLY COOLER RECEIPT TEMP* TURNAROUND TIME: • SAME DAY •24HR • 48 HR • 72 HR • 5 DAYS QIO DAYS REQUESTED ANALYSES SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF • . SPECIAL INSTRUCTIONS: LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EDF) SAMPLING DATE TIME MATRIX NO OF CONT. CL CO X \2\m r f'fS^i' Relinquished by: (Signature) ed by: (SigBature/Afriliation) Date: Time: MA Received by/ (Sigr{ature/Affilia|ion) Time Relinquished by: (Signature' Received by: (Signature/Illation) Time: DISTRIBUTION: White with final report, Green and Yellow to Client. Please note that pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision Page 18 of 19 CLIENT: GfH^U^C, WORK ORDER #: 11 -05- CH B S Cooler j of J_ DATE; 05/U)/11 SAMPLE RECEIPT FORM TEMPERATURE: Thermometer ID: SCI (Criteria: 0.0°C-6.0°C, not frozen) X Temperature __2^._(_°C + 0.5°C (CF) 1^. °C [/Blank • Sample(s) outside temperature criteria (PM/APM contacted by: ). • Sample • Sample(s) outside temperature criteria but received on ice/chilled on same day of sampling. • Received at ambient temperature, placed on ice for transport by Courier. Ambient Temperature: • Air • Filter Initial: "ZI CUSTODY SEALS INTACT: • Cooler • • Sample • • No (Not Intact) • No (Not Intact) Not Present la^Jot Present • N/A Initial initial :iiL SAMPLE CONDITION: Yes Chain-Of-Custody (COC) document(s) received with samples JZ^ No • N/A • COC document(s) received complete 0 • • • Collection date/time, matrix, and/or # of containers logged in based on sample labels. • No analysis requested. • Not relinquished. • No date/time relinquished. Sampler's name indicated on COC • Sample container label(s) consistent with COC • vf • Sample container(s) intact and good condition • • Proper containers and sufficient volume for analyses requested • • Analyses received within holding time .~ • • pH / Res. Chlorine / Diss. Sulfide / Diss. Oxygen received within 24 hours.. • • Proper preservation noted on COC or sample container • • • Unpreserved vials received for Volatiles analysis Volatile analysis container(s) free of headspace • • Tedlar bag(s) free of condensation • • CONTAINER TYPE: Solid: zr4ozCGJ DSozCGJ DieozCGJ DSIeeve ( ) DEnCores® DTerraCores® D Water: DVOA DVOAh DVOAnaj D125AGB D125AGBh D125AGBp DIAGB DIAGBnaj DIAGBs D500AGB D500AGJ DSOOAGJs D250AGB D250CGB D250CGBs DIPB D500PB D500PBna D250PB D250PBn D125PB D125PBznna D100PJ DlOOPJnaj D • D DTedlar® DSumma® Other: D Air: Trip Blank Lot#:_ Labeled/Checked by: Container: C: Clear A: /^ber P: Plastic G: Glass J: Jar B: Bottle 2: Ziploc/Resealable Bag E: Envelope Reviewed by: Preservative: h: HCL n: HNO3 na2-.Na2S203 na: NaOH p: H3PO4 s: H2SO4 znna: ZnAC2+Na0H f: Field-filtered Scanned by: ^ SOP T100_090 (03/24/11) Page 19 of 19 WORK ORDER #: 11 -05-0 [l] B0 SAMPLE ANOMALY FORM SAMPLES - CONTAINERS & LABELS: • Sample(s)/Container(s) NOT RECEIVED but listed on COC • Sample(s)/Contalner(s) received but NOT LISTED on COC • Holding time expired - list sample ID(s) and test • Insufficient quantities for analysis - list test • Improper container(s) used - list test • Improper preservative used - list test • No preservative noted on COC or label - list test & notify lab • Sample labels illegible - note test/container type [Sample label(s) do not match COC - Note in comments 0lSample ID • Date and/or Time Collected • Project Information • # of Container(s) • Analysis • Sample container(s) compromised - Note in comments • Water present in sample container • Broken • Sample container(s) not labeled • Air sample container(s) compromised - Note in comments • Flat • Very low in volume • Leaking (Not transferred - duplicate bag submitted) • Leaking (transferred into Calscience Tedlar® Bag*) • Leaking (transferred into Client's Tedlar® Bag*) • Other: Comments: HEADSPACE - Containers witii Bubble > 6mm or Vt. incfi: Sample # Container ID(») # of Vials Received Sample # Container lD(s) # of Vials Received Sample # Container ID(s) # of Cont. received Analysis Comments: *Transferred at Client's request. Initial /Date: ^-L 05 SOP T100_090 (09/17/10) Page 1 of 10 'alscience ^^nvironmental Sm aboratories. Inc. April 29, 2011 Bryan Voss GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Subject: Calscience Work Order No.: 11-04-1497 Client Reference: Miles-Pacific, LP Dear Client: Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 4/22/2011 and analyzed in accordance with the attached chain-of-custody. Calscience Environmental Laboratories certifies that the test results provided in this report meet all NELAC requirements for parameters for which accreditation is required or available. Any exceptions to NELAC requirements are noted in the case narrative. The original report of subcontracted analysis, if any, is provided herein, and follows the Standard Calscience data package. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety. If you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, Calscience Environmental Laboratories. Inc. Richard Villafania Project Manager NELAP ID: 03220CA • DoD-ELAP ID: L10-41 • CSDLACID: 10109 • SCAQMD ID: 93LA0830 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 2 of 10 ^ alscience nvironmental ^ aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 04/22/11 5741 Palmer Way Work Order No: 11-04-1497 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 1 of 4 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time Analyzed QC Batch ID S-1@8-10" 11-04-1497-1-A 04/22/11 11:36 Solid 6C 61 04/26/11 04/26/11 14:66 110426L04 Parameter Result RL DF Qual Parameter Result RL DE Qua! Aldrin ND 5.0 1 Endosulfan II ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 75 25 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 1400 100 1 Surroaates: REC (%) Control Qual Surroaates: REC {%) Control Qual Limits Limits Decachlorobiphenyl 78 50-135 2,4,5,6-Tetrachloro-m-Xylene 89 50-135 S-2@B-10" 11-04-1497-2-A 04/22/11 Solid GC51 04/26/11 04/26/11 110426L04 11:46 16:11 Parameter Result RL DF Qual Parameter Result RL DF Qual Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 23 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 89 50-135 2,4,5,6-Tetrachloro-m-Xylene 96 50-135 I - Kl RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 3 of 10 ^/science m- nvironmental ^ aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 04/22/11 5741 Palmer Way Work Order No: 11-04-1497 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 2 of 4 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected ^^"^ Instrument Prepared Analyzed Batch ID S-3@8-10" 11-04-1497-3-A 04/22/11 Solid GC61 04/26/11 04/26/11 110426L04 11:64 15:26 Parameter Result RL DF Qua! Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 69 50 10 Gamma-BHC ND 5.0 1 4,4'-DDT 350 50 10 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 3400 1000 10 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 74 50-135 2,4,5,6-Tetrachloro-m-Xylene 77 50-135 S-4@8-10" 11-04-1497-4-A 04/22/11 Solid GC61 04/26/11 04/26/11 110426L04 12:06 16:40 Parameter Result RL DF Qual Parameter Result Rl, DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE 47 10 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene 460 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 91 50-135 2,4,5,6-Tetrach loro-m-Xylene 97 50-135 I - IM RL - Reporting Limit DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 Page 4 of 10 ^Iscience nvironmental aboratories. Inc. Analytical Report GeoSoils, Inc. 5741 Palmer Way Carlsbad, CA 92010-7248 Project: Miles-Pacific, LP Date Received: Work Order No: Preparation: Method: Units: 04/22/11 11-04-1497 EPA 3545 EPA 8081A ug/kg Page 3 of 4 Lab Sample Dale/Time Date Date/Time Client Sample Number Number Collected ^^^^''^ Instrument Prepared Analyzed QC Batch ID S-S@8-10" 11-04-14g7-S-A 04/22/11 Solid GC61 04/26/11 04^6/11 110426L04 12:15 17:63 Parameter Result RL DF Qua! Parameter Result RL DF Qual Aldrin ND 50 10 Endosulfan 11 ND 50 10 Alpha-BHC ND 50 10 Endosulfan Sulfate ND 50 10 Beta-BHC ND 50 10 Endrin ND 50 10 Chlordane ND 500 10 Endrin Aldehyde ND 50 10 4,4'-DDD ND 50 10 Endrin Ketone ND 50 10 4,4'-DDE 1600 500 100 Gamma-BHC ND 50 10 4,4'-DDT 760 500 100 Heptachlor ND 50 10 Delta-BHC ND 50 10 Heptachlor Epoxide ND 50 10 Dieldrin ND 50 10 Methoxychlor ND 50 10 Endosulfan 1 ND 50 10 Toxaphene 9000 1000 10 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 110 50-135 2,4,5,6-Tetrachloro-m-Xylene 104 50-135 S-6@8-10" 11-04-1497-6-A 04/22/11 Solid GC51 04/26/11 04/26/11 110426L04 12:30 16:08 110426L04 Parameter Result RL DF Qua! Parameter Result RL DF Qual Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5,0 Beta-BHC ND 5.0 1 Endrin ND 5.0 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 4,4'-DDE 5.8 5.0 1 Gamma-BHC ND 5.0 •] 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC (%) Control Qual Surroaates: REC (%) Control Qual Limits REC (%) Limits Decachlorobiphenyl 94 50-135 2,4,5,6-Tetrachloro-m-Xylene 106 50-135 I r\L - r^i RL - Reporting Limit , DF - Dilution Factor . Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL(714) 895-5494 • FAX: (714) 894-7501 Page 5 of 10 ^ alscience St^ nvironmental " aboratories. Inc. Analytical Report GeoSoils, Inc. Date Received: 04/22/11 5741 Palmer Way Work Order No: 11-04-1497 Carlsbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Units: ug/kg Project: Miles-Pacific, LP Page 4 of 4 Lab Sample Date/Time Date Date/Time Client Sample Number Number Collected ^^"^ Instrument Prepared Analyzed ^^tch ID Method Blank 099-12-537-1,020 N/A Solid GC 61 04/26/11 04/26/11 110426L04 099-12-537-1,020 14:42 Parameter Result RL DF Qua! Parameter Result RL DF Qua! Aldrin ND 5.0 1 Endosulfan 11 ND 5.0 1 Alpha-BHC ND 5.0 1 Endosulfan Sulfate ND 5.0 1 Beta-BHC ND 5.0 1 Endrin ND 5.0 1 Chlordane ND 50 1 Endrin Aldehyde ND 5.0 1 4,4'-DDD ND 5.0 1 Endrin Ketone ND 5.0 1 4,4'-DDE ND 5.0 1 Gamma-BHC ND 5.0 1 4,4'-DDT ND 5.0 1 Heptachlor ND 5.0 1 Delta-BHC ND 5.0 1 Heptachlor Epoxide ND 5.0 1 Dieldrin ND 5.0 1 Methoxychlor ND 5.0 1 Endosulfan 1 ND 5.0 1 Toxaphene ND 100 1 Surroaates: REC 1%) Control Qual Surroaates: REC (%) Control Qual Limits Limits Decachlorobiphenyl 71 50-135 2,4,5,6-Tetrachloro-m-Xylene 88 50-135 I KL - Kl RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL(714) 895-5494 • FAX: (714) 894-7501 Page 6 of 10 ^ alscience £_nvironmental Quality Control - Spike/Spike Duplicate Mm aboratories. Inc. GeoSoils, Inc. Date Received: 04/22/11 5741 Palmer Way Work Order No: 11-04-1497 Carlsbad, CA 92010-7248 Preparation Method: EPA 3545 EPA 8081A Project Miles-Pacific, LP Quality Control Sample ID Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number S-3@8-10" Solid GC 51 04/26/11 04/26/11 110426S04 Parameter MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers Aldrin 106 104 50-135 2 0-25 Alpha-BHC 103 101 50-135 1 0-25 Beta-BHC 106 109 50-135 2 0-25 4,4'-DDD 184 209 50-135 13 0-25 3 4,4'-DDE 77 147 50-135 18 0-25 3 4,4'-DDT 0 36 50-135 14 0-25 3 Delta-BHC 112 117 50-135 4 0-25 Dieldrin 301 334 50-135 10 0-25 3 Endosulfan 1 180 191 50-135 6 0-25 3 Endosulfan II 314 347 50-135 10 0-25 3 Endosulfan Sulfate 478 526 50-135 10 0-25 3 Endrin 350 278 50-135 23 0-25 3 Endrin Aldehyde 376 448 50-135 17 0-25 3 Gamma-BHC 108 108 50-135 0 0-25 Heptachlor 102 99 50-135 3 0-25 Heptachlor Epoxide 101 105 50-135 4 0-25 Methoxychlor 263 265 50-135 0 0-25 3 I n,ru - r^ rmAkA RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 7 of 10 ^ alscience ^environmental Quality Control - LCS/LCS Duplicate Sm aboratories. Inc. GeoSoils, Inc. Date Received: N/A 5741 Palmer Way Work Order No: 11-04-1497 Carisbad, CA 92010-7248 Preparation: EPA 3545 Method: EPA 8081A Project: Miles-Pacific, LP Quality Control Sample ID Matrix Instrument Date Prepared Date Analyzed LCS/LCSD Batch Number 099-12-537-1,020 Solid GC 51 04/26/11 04/26/11 110426L04 Parameter LCS %REC LCSD %REC %REC CL ME CL RPD RPD CL Qualifiers Aldrin 85 76 50-135 36-149 11 0-25 Alpha-BHC 88 78 50-135 36-149 11 0-25 Beta-BHC 89 79 50-135 36-149 12 0-25 4,4'-DDD 86 73 50-135 36-149 16 0-25 4,4'-DDE 91 78 50-135 36-149 16 0-25 4,4'-DDT 90 78 50-135 36-149 14 0-25 Delta-BHC 85 75 50-135 36-149 13 0-25 Dieldrin 84 73 50-135 36-149 13 0-25 Endosulfan 1 82 72 50-135 36-149 13 0-25 Endosulfan 11 79 68 50-135 36-149 15 0-25 Endosulfan Sulfate 80 69 50-135 36-149 15 0-25 Endrin 83 74 50-135 36-149 12 0-25 Endrin Aldehyde 59 50 50-135 36-149 15 0-25 Gamma-BHC 90 80 50-135 36-149 12 0-25 Heptachlor 87 77 50-135 36-149 12 0-25 Heptachlor Epoxide 71 61 50-135 36-149 15 0-25 Methoxychlor 84 73 50-135 36-149 15 0-25 Total number of LCS compounds : 17 Total number of ME compounds : 0 Total number of ME compounds allowed : LCS ME CL validation result: Pass a T\ru - r RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA 92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 8 of 10 '~ alscience Si nvironmental ^, ^ , r § Glossary of Terms and Qualifiers w aboratories. Inc. Work Order Number: 11-04-1497 Qualifier Definition * See applicable analysis comment. < Less than the indicated value. > Greater than the indicated value. 1 Surrogate compound recovery was out of control due to a required sample dilution, therefore, the sample data was reported without further clarification. 2 Surrogate compound recovery was out of control due to matrix interference. The associated method blank surrogate spike compound was in control and, therefore, the sample data was reported without further clarification. 3 Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of control due to matrix interference. The associated LCS and/or LCSD was in control and, therefore, the sample data was reported without further clarification. 4 The MS/MSD RPD was out of control due to matrix interference. The LCS/LCSD RPD was in control and, therefore, the sample data was reported without further clarification. 5 The PDS/PDSD or PES/PESD associated with this batch of samples was out of control due to a matrix interference effect. The associated batch LCS/LCSD was in control and, hence, the associated sample data was reported without further clarification. B Analyte was present in the associated method blank. BU Sample analyzed after holding time expired. E Concentration exceeds the calibration range. ET Sample was extracted past end of recommended max. holding time. J Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. ME LCS Recovery Percentage is within LCS ME Control Limit range. ND Parameter not detected at the indicated reporting limit. Q Spike recovery and RPD control limits do not apply resulting from the parameter concentration in the sample exceeding the spike concentration by a factor of four or greater. X % Recovery and/or RPD out-of-range. Z Analyte presence was not confirmed by second column or GC/MS analysis. Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. All QC results are reported on a wet weight basis. 7440 Lincoln Way, Garden Grove, CA 92841-1427 • TEL:(714) 895-5494 • FAX: (714) 894-7501 clence Environmental Laboratories, Inc. SoCal Laboratory 7440 Lincoln Way Ganlen Grove, CA 92841-1427 (714) 895-5494 NorCal Service Center 5063 Commercial Circle, Suite H Concord, CA 94520-8577 (925) 689-9022 CHAIN OF CUSTODY RECORD Date ^^^/y Page_ of LABORATORY CLIENT: ADDRESS: CITY STATE ZIP TURNAROUND TIME: / T CLIENT PROJECT NAME / NUMBER: 'kOJECT CONTACT: PROJECT CONTACT: SAMPLER^): (PRINT) COELT LOG CODE • ••• P.O. NO: LABUSEONLY m B - B a gi COOLER RECEIPT TEMP= TURNAROUND TIME; • SAME DAY •24HR • 48 HR • 72 HR ^^^gPA DAYS • 10 DAYS REQUESTED ANALYSES SPECIAL REQUIREMENTS (ADDITIONAL COSTS MAY APPLY) • RWQCB REPORTING FORMS • COELT EDF • . SPECIAL INSTRUCTIONS: LAB USE ONLY SAMPLE ID FIELD POINT NAME (FOR COELT EDF) SAMPLING DATE TIME NO OF CONT. Q_ CO o. a. ti> o CD CM OO CO 6 t. X Q. s 00 f Sal <>~H S 8-10'' p:o5 r tjiyy^S^inatuf^^ Oate: >y: (Signature/Affiliation^ Received by: (SIgnature/AffilisQion) ^t4HC "Date! Time: ^afe? * Time: Time: O) OtD OJ. CP oS o DISTRIBUTION: White with final report, Green and Yellow to ClienL Please note thaf pages 1 and 2 of 2 of our T/Cs are printed on the reverse side of the green and Yellow copies respectively. 05/01/07 Revision Mmnvlronmorft&l M^aboratoriea, inc. CLIENT: <C^BO SplL^ Page 10 of 10 WORK ORDER #: 11 -04- Q] la S SAMPLE RECEIPT FORM Cooler V of \ DATE. 04/02/11 TEMPERATURE: Thermometer ID: SC1 (Criteria: 0.0°C-6.0°C, not frozen) Temperature L»:^ °C + 0.5 °C (CF) = 1 . °C Q^ank • Sample D Sample(s) outside temperature criteria (PM/APM contacted by: ). D Sample(s) outside temperature criteria but received on ice/chilled on same day of sampling. • Received at ambient temperature, placed on ice for transport by Courier. Ambient Temperature: D Air D Filter Initial CUSTODY SEALS INTACT: • Cooler • • Sample • • No (Not Intact) • No (Not Intact) 0'^t Present ca^Not Present • N/A ual:^^ initial: Initial: "H^ SAMPLE CONDITION: Yes No N/A Chain-Of-Custody (COC) document(s) received with samples • • COC document(s) received complete 0^ • • D Collection date/time, matrix, and/or # of containers logged in based on sample labels. D No analysis requested. D Not relinquished. D No date/time relinquished. Sampler's name indicated on COC vT • • Sample container label(s) consistent with COC VT • • Sample container(s) intact and good condition • • Proper containers and sufficient volume for analyses requested ET^ • • Analyses received within holding time 0^ • • pH / Res. Chlorine / Diss. Sulfide / Diss. Oxygen received within 24 hours... • • Proper preservation noted on COC or sample container • • D Unpreserved vials received for Volatiles analysis Volatile analysis container{s) free of headspace • • 0^ Tedlar bag(s) free of condensation • • 0^ CONTAINER TYPE: Solid: 2l4ozCGJ D8ozCGJ D16ozCGJ DSIeeve ( ) DEnCores® DTerraCores® D Water: DVOA DVOAh DVOAnaa D125AGB D125AGBh ai25AGBp DIAGB DIAGBnaz DIAGBs •500AGB D500AGJ D500AGJs D250AGB D250CGB D250CGBs DIPB D500PB D500PBna D250PB D250PBn ai25PB D125PBznna D100PJ DlOOPJnaj D D D Air: DTedlar® DSumma® Other: D Trip Blank Lot#: Labeled/Checked by: .'T^A^ Container: C: Clear A: Amber P: Plastic G: Glass J; Jar B: Bottle Z: Ziploc/Resealable Bag E: Envelope Reviewed by: Preservative: h: HCL n: HNO3 najiNajSsOs na: NaOH p: H3PO4 s: HjSO^ znna: ZnAc2+NaOH f: Field-filtered Scanned by: SOP T1C0_090 (03/24/11) APPENDIX C COMMUNITY HEALTH AND SAFETY PLAN GeoSoils, Inc. COMMUNITY HEALTH AND SAFETY PLAN Site Identification The subject site ("the site") is approximately 5.4 acres, located within the City of Carlsbad, California (see Figure 1, Site Location Map). The site Is bounded by existing residential development and Pio Pico Drive to the east, by the Interstate 5 freeway to the west, and by existing residential development to the remaining quadrants. The physical address of the site is 2373 and 2375 Pio Pico Drive. According to the 30-scale tentative map prepared by BHA, Inc., site elevations range between approximately 82 to 110 feet NAVD29. Topographically, the site Is generally flat-lying to very gently sloping in a southwesterly direction. The overall gradient ofthe site is on the order of 16:1 (horizontal: vertical [h:v]). Near the western margin of the site, an approximately 33-foot high cut slope descends toward the Interstate 5 freeway. The overall gradient of this slope is approximately 1.9:1 (h:v). Existing onsite structures include canopies for the currently operating tree nursery. Based on a review of bHA, Inc. (2012), proposed development will consist of preparing the site forthe construction 17 new single-family residences, with associated infrastructure (e.g., underground utilities, streets, sidewalks, etc.). Cut and fill grading techniques will be necessary to achieve the design grades with maximum planned cuts and fills on the order of ±6V2 and ±6 feet respectively. Grade differentials will be accommodated by the construction of graded 2:1 (h:v) or flatter cut and fill slopes and concrete masonry unit (CMU) retaining wall. The maximum heights of permanent graded cut and fill slopes shown on bHA, Inc. are approximately ±6 feet and ±8 feet, respectively. The maximum height of CMU retaining walls is approximately ±572 feet. Storm water will be directed into two detention basins near the western margin of the site, prior to introduction into the regional system in the existing brow ditch on the cut slope descending to Interstate 5. Sanitary sewerage disposal is anticipated to be tied into the municipal system. GSI anticipates that the proposed residences will be one- to two-stories and consist of wood-frame and/or masonry construction with concrete slab-on-grade floors. GSI assumes that the residential structures will be relatively lightly loaded, typical of this type of development. Assessor parcel numbers (APNs) associated with the site are 156-351-03, -07, and -08. The site is listed as an open case with the San Diego County Department of Environmental Health (Case #DEH2013-LSAM-000194). The site has been proposed to be redeveloped as a 17-lot residential subdivision. Evaluation of Potential Public Exposure to Hazards The site consists of approximately 5.4 acres of land which has been predominantly used for agricultural purposes since at least 1963. Since 2011, several subsurface pesticide investigations have been conducted on the site resulting in the collection of a total of 42 soil samples for the analysis of residual pesticides. Pesticide analysis identified localities GeoSoils, Inc. where the presence of toxaphene at concentrations that exceed the California Human Health Screening Levels (CHHSLs) for residential soils existed. Other pesticide constituents, including Aldrin, 4-DDE, and 4,4-DDT were detected at concentrations below action levels indicated bythe CHHSLs. Based on the results ofthe investigations, soil impacted with toxaphene at concentrations above the CHHSLs existed from the surface to a maximum depth of ±3.0 feet below ground surface. However, a majority of the toxaphene impacted soil exists from the surface to a maximum depth of ±2 feet below the ground surface. The depth of migration of the pesticides appeared to be primarily due to agricultural activities over time. Soil encountered during the investigations generally consisted of brown to yellow brown sandy clay to clayey at depth, and was generally moist to wet. The proposed property developer (Shea Homes) plans to excavate and stockpile onsite soil with toxaphene concentrations above the site cleanup levels discussed above. All soils with toxaphene concentrations above the site cleanup level, will be placed in an excavation created onsite and have a minimum cover of 10 and 7 feet, in street right-of-way and residential areas, respectively, to avoid contact with utilities, workers, and residents. This soil will generally be placed well above 5 feet from the highest anticipated groundwater level. Grading of the site will involve heavy earth-moving equipment to excavate the impacted soil and deposit these soils within specifically placed excavations. Clean imported fill material will cover the impacted soil and compacted upon which improvements can be safely placed. The excavation and movement of toxaphene impacted soil will pose an exposure concern. Specifically, the exposure of toxaphene through inhalation, dermal contact, and ingestion or airborne dust particles would pose the greatest public health concern. Additionally, noise and hazards associated with large moving equipment will also presented by earth grading operations. Based on the site's location within a predominantly residential area, proper protocols will need to be in place during the remedial activities to reduce exposure to potential health hazards. Contaminant Characteristics Toxaphene was the only pesticide found at the site at concentrations that exceeded State and Federal screening levels. All other pesticides were found to be significantly below levels which pose as a human exposure concern (CHHSLs). Therefore, this study will focus on the characteristics and occurrence of toxaphene impacted soil. Toxaphene is non-combustible, highly toxic when ingested in sufficient concentrations, and has a strong bond to soil grains. Based on onsite analytical testing, toxaphene is not water soluble and, therefore, does not migrate or represent a concern for groundwater contamination. Toxaphene does not diffuse in air; therefore, if buried, contaminant vapor migration is not a concern. Community and Health Safety Plan . W.O. E6649.1-SC File:e:\wp12\env\e6600\e6649.1.pmp GcoSoilS, InC. Page 2 The Occupational Safety & Health Administration (OSHA) recommended a maximum average amount of air exposure of toxaphene to workers to not exceed 0.5 micrograms per cubic meter of air (mg/m3) per 8-hour workday over a 40-hour work week. The National Institute of Occupational Safety & Health (NIOSH) currently does not have a recommended limit for up to a 10-hour workday over a 40-hour workweek. According to the International Agency for Research on Cancer (lARC), toxaphene is classified as Group 28 carcinogen (possibly carcinogenic to humans [lARC, 2009]). The National Toxicology Program (NTP) has determined that toxaphene is reasonably anticipated to be a human carcinogen (NTP, 2005), and the United States Environmental Protection Agency (US EPA) has classified toxaphene as a B2 carcinogen (probable human carcinogenic [IRIS, 2010]). The American Conference of Governmental Industrial Hygienists (ACGIH) has classified toxaphene as an A3 carcinogen (confirmed animal carcinogen with unknown relevance to humans [ACGIH, 2009]). The U.S. Department of Agriculture (USDA) prohibited all uses of toxaphene in 1990. In 1982, however, the US EPA cancelled the registration of toxaphene for use as a pesticide, except for use on livestock, in emergency situations. According to Agency for Toxic Substance and Disease Registry (ATSDR), no studies are available on the effects of acute inhalation exposure to toxaphene in humans or animals (ATSDR, 1996). Acute oral exposure to toxaphene in humans results in Central Nervous System (CNS) stimulation, with the major effect begin convulsive seizures. The dose necessary to induce nonfatal convolutions in humans is approximately 10 milligrams per kilogram body weight per day (mg/kg/day [ATSDR, 1996]). Animal studies have reported effects on the liver, kidney, and CNS from acute oral exposure to toxaphene. Additionally, animal studies have reported development effects, including behavior effects and immunosuppression, in offsprings of rats exposed orally to toxaphene. Several studies have reported no reproductive effects from oral exposure to toxaphene in rats (ASTDR, 1996). Methods of Exposure The primary onsite source of contamination was the legal application of agricultural pesticides. The secondary source of contamination is the soil grains that the pesticides have bound to. The primary mode of transportation is wind and earth-moving operations during proposed grading. Additionally, a less likely mode of transportation is bioaccumulation of pesticides in plant material such as edible fruit and vegetables. The direct exposure to toxaphene impacted soil through ingestion, inhalation, and dermal contact is the main human health concern. Activities that involve the handling of impacted soil, such as gardening and home improvements that involve excavation work, may result in exposure. Bioaccumulation results in the uptake of chemical pesticides into edible fruits and vegetables, and is not known to occur onsite. The burial of the impacted soil to a depth of 12 feet below ground surface, or fill depths as directed by the site civil engineer to avoid contact with utilities, beneath soil containing Community and Health Safety Plan r* c * t W.O. E6649.1-SC File:e:\wp12\env\e6600\e6649.1.pmp GCOSOllS, InC. Page 3 pesticide-Impacted soil at non-detect to below the site cleanup levels, would eliminate the risk of plant uptake and human contact of toxaphene at concentrations above the CHHSLs. Inhalation of airborne dust is another route for exposure to toxaphene. The US EPA Integrated Risk Information System has not published a reference concentration for toxaphene for chronic inhalation exposure. Due to the chemical characteristics of toxaphene vapor intrusion, leaching, and groundwater impacts are not applicable concerns onsite. Monitoring To date, GSI is unaware of any monitoring devices that detect toxaphene concentrations in real time. Air samples can l^e collected the glass fiber filter method; however, samples would require analysis at an offsite fixed laboratory and would be of little to no use in the field. Therefore, GSI does not recommend air monitoring. Perimeter Air Monitoring There are currently no regulatory action levels for short term community exposure to airborne organochlorine pesticides such as toxaphene. The United States Environmental Protection Agency (US EPA) has developed Regional Screening Levels (RSLs), which were developed to replace and update the information in the document entitled Region 9 Preliminary Remediation Goals (PRG) 2002 Update, dated November 1,2002, and revised November 2010. The designated RSL values are for airborne contaminants in a residential land use scenario. These designated values, however, assume that the resident is exposed to airborne concentrations of the contaminant for 24 hours a day, 7 days a week, and 365 days a year. Accordingly, the RSL values would be very conservative to use for the anticipated shortterm exposures associated with organochlorine pesticide bearing soil dust generated from the proposed excavation and disposal activities. Based on other studies completed in the area, GeoSoils, Inc. (GSI) has calculated an airborne contaminant concentration limit or modified RSL for toxaphene based on a more realistic exposure scenario of 8 hours a day, 7 days a week, and a maximum of 20 days of exposure, which in GSI's opinion is acceptable conservative for exposure scenarios. Attachment A presents the RSL calculations. This limited-term exposure scenario assumes excavation, grading, and soil disposal activities associated with the disposal of toxaphene impacted soil are completed within a total of 20 days of work. The modified Site-specific RSL was calculated using the above-referenced Site-specific assumptions and the RSL formula used by the US EPA. This formula is used for the calculation of RSLs for airborne concentrations of contaminants corresponding to a typical de minimis theoretical excess lifetime cancer risk of one in a million (1 E-06). This Site-specific RSL value is presented on the following table: Community and Health Safety Plan r' c -i i W.O. E6649.1-SC File:e:\w/p12\env\e6600\e6649.1.pmp GCOSOllS, InC. Page 4 Modified Single Toxaphene RSL (ug/m^ Modified Cumulative Toxaphene RSL (ug/m^* 12.1 6.05 *The final RSL was further adjusted by dividing the RSL by a factor of two to account for cumulative cancer risks. RSL = Regional Screening Level ug/m3 = Micrograms per cubic meter Perimeter air monitoring will be conducted at the Site utilizing low-volume sampling pumps, calibrated to a daily flow rate of approximately one liter per minute. The low-volume sampling pump will pump air through a filter/solid sorbenttube, which will be analyzed for toxaphene in accordance with the National Institute of Occupational Safety and Health (NIOSH) Method 5600 (Attachment B). Analytical laboratory testing will be conducted at a California State-certified laboratory within 24 hours of obtaining the sample. Prior to conducting excavation and soil disposal activities at the Site, GSI will collect perimeter air monitoring samples at three locations based on predominant wind patterns at the Site. Samples will be obtained at the south, north, and east perimeters of the Site to evaluate background airborne concentrations of toxaphene in general accordance with NIOSH Method 5600. The approximate locations ofthe proposed air monitoring stations are depicted on Plate 1. During the initial three or four days of excavation and soil disposal activities, perimeter air monitoring samples will be collected from the designated locations. The air samples will be analyzed for toxaphene in general accordance with NIOSH test method 5600 to assess potential exposure to the surrounding community. In addition, dust meters will also be placed at the air monitoring stations to measure total dust generated from the construction activities. Based on the results of the air monitoring for toxaphene and the total dust readings during the initial days of excavation and soil disposal activities, an environmental scientist will evaluate the collected data, and statistically assess whether or not there is a correlation between concentrations of toxaphene and total dust measurements. If a direct correlation is established, and action level fortoxaphene will be established based on the relationship of the total dust measured as total particulate concentrations in air to toxaphene concentrations. The established action level will be total dust measurement at which toxaphene concentrations are below the modified RSL. As the excavation and disposal operations proceed, GSI will collect dust meter readings at the metering stations every hour during earthwork operations. The results of the dust meter readings will be compared to the established action levels and the National Ambient Air Quality Standards (NAAQS) for particulate matter (PM10) of 150 ug/m3. The locations of the dust meters, the time of sampling, and range of measured concentrations will be Community and Health Safety Plan File:e:\wp12\env\e6600\e6649.1.pmp GeoSoils, Inc. W.O. E6649.1-SC Page 5 recorded in a daily log by GSI field personnel. It total dust readings exceed the lowest of the established action levels or NAAQS standards, dust suppression efforts at the Site will be increased or construction operations will be stopped. The SAM Project Manager will be notified of air sampling exceedances the next business day. The notifications will include the action taken to abate the exceedance and follow-up sampling will be conducted and reported to ensure abatement activities were successful. Perimeter air sampling will be conducted at the three proposed locations on a weekly basis to assess the relationship between total dust and toxaphene. In addition, wind direction and speed monitoring will be conducted and documented using a portable apparatus. The perimeter air monitoring will be performed until confirmation samples indicate that the mitigation criteria have been met and the placement of a clean soil cap overlying the toxaphene impacted soil has been constructed. Following the initial three days of quantitative air sampling and laboratory analysis, the subsequent weekly air sampling would continue to be conducted from all six air monitoring stations, however, only the downwind air monitoring stations would be submitted for laboratory analysis, provided the wind direction remains relatively consistent during the sampling period. The weekly air samples collected from the other locations (the crosswind or upwind samples) will be placed on hold and maintained at zero degrees Celsius atthe laboratory for 30 days. Should public complaints regarding potential exposure be received and need to be further addressed, these samples should then remain valid for 30 days following collection. If possible, the dust concentration from quantitive sampling events will also be reported by the laboratory. GSI will meet with the developer and grading contractor to discuss the soil disposal plan, air monitoring, sequencing, and duration of work. If any information changes that may impact perimeter air monitoring, the DEH will be contacted and an additional addendum to the Community Health and Safety Plan will be submitted to the DEH for approval. Confirmation Sampling In areas of concern, once excavated to the planned dimensions, confirmation soil samples will be collected from the base ofthe excavations at an approximate frequency of one for every 50- by 50- foot area. Confirmation soil samples will also be collected from the sidewalls ofthe excavations at an approximate frequency of every 100 linear feet. Mass grading will not continue until test results indicate that the constituents of concern are below residential CHSSLs (the cleanup goal). The confirmation samples will be collected directly into laboratory-provided sampling jars, properly labeled, and placed in a chilled cooler for transport to the laboratory under chain- of-custody protocol. The samples will be analyzed for organochlorine pesticides (USEPA Test Method 8081 A, using a 24-hr rush turnaround. Community and Health Safety Plan ~ W.O. E6649.1-SC File:e:\wp12\env\e6600\e6649.1.pmp GCOSOllS, InC. Page 6 Engineering Controls The following engineering controls will be utilized in order to reduce the risk of human exposure to toxaphene contaminated soil during remedial activities: Dust During excavation and stockpiling activities, copious amounts of water must be applied to the soil in order to suppress dust particles from becoming air-borne. Additionally, toxaphene impacted soil must not be disturbed if winds exceed 13 miles per hour (mph). All stockpiled soils must be covered with heavy grade plastic sheets while water suppression is not employed, particularly during non-working hours. Adequate watering of the site for dust suppression purposes should address County Air Pollution Control District (ACPD) Rule 55, as indicated above. Water should minimally be sprayed prior to daily work activities, and during excavation/loading and placement activities. Watering equipment will be continuously available to provide proper dust control. Site Security The site will be fenced and gated, limiting access to only those authorized to be onsite. Noise Equipment operation times will be dictated by the City of Carlsbad, Zoning Ordinances. The site is surrounding by residential neighborhoods. It is anticipated that noise may be an issue which will require some level of cooperation between the developer and the surrounding neighborhoods, as on any construction project. Open Excavations Given the size ofthe potential excavations, it will be required to have them remain open over-night. As a result, safety for entering an exaction due to illegal entry is a concern after hours. Every effort will be made to backfill excavations at the end of each workday, but for those that remain open, proper fencing and flagging of the excavation will occur after operating hours. In addition, proper slopes will be maintained as well as one open end for ease of entry and exit from the excavations. Soil Management To ensure that impacted soil is not carried offsite, all vehicles and equipment should be inspected prior to exiting the site. If significant amounts of soil are trapped within the tires or under-carriage of vehicles, the soil should be removed prior to the vehicle exiting the site. During and at the end of each day, any soil deposited on Pio Pico Dhve outside the exit of the site should be swept up and returned to the site for proper management. Community and Health Safety Plan _ W.O. E6649.1-SC File:e:\wp12\env\e6600\e6649.1.pmp GCOSoilS, InC. Page 7 Best Management Practices If site development is required during rainy periods, care should be taken to minimize the negative effects. Typically, the City has recommended that no work be conducted when the potential for rain is above 40 percent. Reasonable judgment should be used to determine the significance of the potential rainfall event and how it might affect the remedial grading activities. If a significant rainfall event is anticipated or occurs during construction operations, necessary measures must be taken to minimize erosion of stockpiles and limit soil erosion from offsite migration. As is the standard during construction, the developer will retain a consultant to produce a Storm Water Pollution Prevention Plan (SWPPP), which will include the overall project. In the event of a runoff- producing precipitation event, the Best Management Practices (BMPs) that would be employed during remedial excavation and grading operations should be placed on the perimeter of the entire site, and are shown on Plate 1. Since combinations of BMPs would already be in place for the overall project (i.e., diversion ditches, fiber rolls, etc.), and considering that during proposed mitigation, the excavations would be well below grade, the BMPs would consist of silt fences and/or filter roll barriers used in conjunction with the site SWPPP, which would also include routine protection of storm drain inlets with filter fabric and sand/gravel bag barriers. Site Safety Officer The designated project superintendent chosen by Shea Homes will serve as the Site Safety Officer. GSI will assist the Site Safety Officer in areas where they are unfamiliar with site safety. The job ofthe Site Safety Officer will be to monitor dust control and ensure that the site is only accessed by authorized personnel. In the event of an emergency, the Site Safety Officer will have the authority to shut down site activities and the knowledge to notify the appropriate emergency responders. Emergency Planning Toxaphene is non-flammable and does not represent a fire or explosion concern. In the event of an emergency where site activities are halted, necessary measures must be taken to ensure that contaminated soil does not leave the site. All stockpiles must be covered and trenches must be fenced. If in the event of an emergency, the Site Safety Officer must notify the following agencies or individuals: City of Carlsbad Engineering Inspector: (760) 438-4178 City of Carlsbad Fire Department: 911 or (760) 931-2141 San Diego Department of Environmental Health: Carol Fenner - (858) 505-6896 Community and Health Safety Plan . W.O. E6649.1-SC File:e:\wp12\env\e6600\e6649.1.pmp GcoSoilS, InC. Page 8 Public Notification Prior to the implementation of the proposed work, public notices will be mailed or hand-delivered to neighboring residences contiguous to the subject property. The notices will identify the proposed work, days and hours of operation, and an estimated schedule of the project. Details will include: Site Safety Officer's and GSI's contact information, identification of potential concerns including dust and noise; a brief description of planned activities, and the Proposition 65 Warning of the potential exposure to chemicals known or suspected by the State of California to cause cancer. Notices will also be placed on the fence surrounding the site's perimeter immediately prior to start of construction activities. GSI will prepare a Public notification Letter for distribution to the neighbors using the example provided in the most recent San Diego County Department of Environmental Health Site Assessment and Mitigation Manual. Traffic Control Plan The site is located within a residential area of Carlsbad. The main roadway to access the site (Pio Pico Drive) consist of a two-lane paved road with no parking allowed on the shoulder. Additionally, there are no sidewalks along Pio Pico Drive. Trucks and all other vehicles should be aware of the following precautions: The maximum speed limit on 2-lane residential roads is 25 miles per hour (mph). Large trucks should limit their speed to 20 mph to account for their longer stopping distance; Due to the lack of sidewalks, residents may be walking in the street. Drivers of trucks and other vehicles must be alert at all times. Community and Health Safety Plan _ W.O. E6649.1-SC File:e:\wp12\env\e6600\e6649.1.pmp GeoSoilS, InC. Page 9 ATTACHMENT A REGIONAL SCREENING LEVEL CALCULATIONS FOR AIRBORNE TOXAPHENE Equation Used to Calculate Modified Screening Levels in Air for Monitoring Community Inhalation Exposure During Site Soil Excavation and Disposal The following standard equation for calculating inhalation cancer risk (US EPA, 1989) was used to calculate the modified Regional Screening Level (RSL) for residential receptors. TCR = iJihR X X FDE xEFxED BWxAT CSF Where: TCR InhR Cair FDE EF ED BW AT CSF,, = target cancer risk (unit less) = adult inhalation rate (m^day) = concentration in air, modified RSL (mg/m^) = fraction of day exposed (unit less) = exposure frequency (days/year) = exposure duration (year) = adult body weight (kg) = average time for a carcinogen (days) = inhalation cancer slope factor (mg/kg/day)"^ The following equation for toxaphene assumes a target cancer risk of 1 E-06, and assumes standard adult residential exposure of 8 hours per day. FDE = 8/24 or 0.33. The duration of construction activity (EF) is assumed to be 20 days, within a single year (ED). 1x10" 20^x C . ^x0.33 x 35^XUT m- yr 10kgx 25,550dm's 1.12 mg kg x den- Solving for C^i, results in a modified RSL for toxaphene of 12.1 E-03 mg/m^ or 12.1 ug/m^ References: USEPA, 1989, Risk assessment guidance for superfund (RAGS), volume 1: Human Health Evaluation Manual (Part A), Interim Final, USEPA. Washington DC, EPA/540/1- 89/002. Community and Health Safety Plan File:e:\wp12\env\e6600\e6649.1.pmp GeoSoils, Inc. W.G. E6649.1-SC Page 10 RSL formula confirmation with current USEPA PSLsfor residential air (latest version dated April 2012). CHEMICAL CANCER RISK OAIR (ug/m') OAIH (ug/m') INHRATE (m7day) FRACTION OF DAY EXPOSED EXPOSURE FREQUENCY Toxaphene 9.99E-07 7.60E-03 7.60E-06 20 1 350 Modified RSLs - Residential Air RSLs adjusted for 35-day exposure frequency, 8 hours of exposure per day, and 1-year exposure duration. CHEMICAL CANCER RISK OAIH (ug/m*) OAIH {uglnf) INHRATE (m»/day) FRACTION OF DAY EXPOSED EXPOSURE FREQUENCY Toxaphene 1 .OOE-06 12.1 12.1 E-03 20 0.33 20 Community and Health Safety Plan File:e:\wp12\env\e6600\e6649.1.pmp GeoSoils, Inc. W.O. E6649.1-SC Page 11 ATTACHMENT B NIOSH TEST METHOD 5600 GeoSoils, Inc. ORGANOPHOSPHORUS PESTICIDES 5600 Formula: Table 1 MW: Table 1 CAS: Table 1 RTECS: Table 1 METHOD: 5600, Issue 1 EVALUATION: FULL Issue 1: 15 August 1994 OSHA : Table 2 NIOSH: Table 2 ACGIH: Table 2 PROPERTIES: Table 3 SYNONYMS: Table 4 SAMPLING MEASUREMENT SAMPLER: FILTER/SOLID SORBENT TUBE (QVS-2 tube: TECHNIQUE: GC, FLAME PHOTOMETRIC DETECTION 13-mm quartz filter; XAD-2, 270 mg/140 mg) (FPD) FLOW RATE: 0.2 to 1 L/min ANALYTE: organophosphorus pesticides. Table 1 VOL-MIN: 12 L EXTRACTION: 2-mL 90% toluene/10% acetone solution -MAX: 240 L; 60 L (Malathion, Ronnel) INJECTION SHIPMENT: cap both ends of tube VOLUME: 1-2 pL SAMPLE TEMPERATURE STABILITY: at least 10 days at 25 °C -INJECTION: 240 °C at least 30 days at 0 °C -DETECTOR: 180 "C to 215 °C (follow manufacturer's recommendation) BLANKS: 2 to 10 field blanks per set -COLUMN: Table 6 CARRIER GAS: He at 15 psi (104 kPa) ACCURACY COLUMN: fused silica capillary column; Table 6 RANGE STUDIED: Table 5, Column A DETECTOR: FPD (phosphorus mode) ACCURACY: Table 5, Column B CALIBRATION: standard solutions of organophosphorus compounds in toluene BIAS: Table 5, Column C RANGE: Table 8, Column C OVERALL PRECISION (S.^): Table 5, Column D ESTIMATED LOD: Table 8, Column F PRECISION (S,): Table 5, Column E PRECISION (S,): They cover a range of 1/10 to 2 times the OSHA PELs. This method also is applicable to STEL measurements using 12-L samples. This method may be applicable to the determination of other organophosphorus compounds after evaluation for desorption efficiency, sample capacity, sample stability, and precision and accuracy. OTHER METHODS: This method may be used to replace previous organophosphorus pesticide methods. See Table 10 for partial listing. The OVS-2 tube is similar in concept to the device of Hill and Arnold [11], but offers greater convenience and low/er flow resistance. INTERFERENCES: Several organophosphates may co-elute with either target analyte or internal standard causing integration errors. These include other pesticides (see Table 7), and the following: tributyl phosphate (plasticizer), tris-(2-butoxy ethyl) phosphate (plasticizer used in some rubber stoppers), tricresyl phosphate (petroleum oil additive, hydraulic fluid, plasticizer, flame-retardant, and solvent), and triphenyl phosphate (plasticizer and flame-retardant in plastics, lacquers, and roofing paper). NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 2 of 20 REAGENTS: 1. Organophosphorus analytes listed in Table 1. and (optional) triphenyl phosphate, analytical standard grade.* 2. Toluene, pesticide analytical grade.* 3. Acetone, ACS reagent grade or better.* 4. Desorbing solution. Add 50 mL acetone to a 500-mL volumetric flask. Dilute to volume with toluene. NOTE: For optional internal standard, add 1 mL of a 5 mg/mL solution of triphenyl phosphate in toluene to 500 mL desorbing solution. 5. Organophosphorus stock solutions, 10 mg/mL. Prepare individual standard stock solutions of each pesticide of interest in 90/10 toluene/acetone (V/V). All pesticides in Table 1 were found to be soluble to at least 10 mg/mL. 6. Spiking solutions for calibration (step 9) and media fortification (steps 10, 11). NOTE: Spiking solutions may contain more than one analyte. a. Spiking solution SS-1: Dilute the volume of Stock solution indicated in column F of Table 11 to 10 mL with toluene or 90/10 toluene/acetone. b. Spiking solution SS-2: Dilute 1 mL of SS- 1 solution with toluene in a 10-mL volumetric flask. 7. Purified gases: Helium, hydrogen, nitrogen, dry air, and oxygen, (if required by detector). * See Special Precautions EQUIPMENT: 6. 7. 8. 9. Sampler: glass tube, 11-mm ID x 13-mm OD X 50 mm long, with the outlet end drawn to a 6-mm o.d. x 25 mm long tube. The enlarged part of the tube contains a 270-mg front section of 20/60 mesh XAD-2 sorbent or equivalent held in place by a 9 to 10-mm o.d. quartz fiber filter and polytetrafluoroethylene (PTFE) retaining ring. The front section is separated from the back section of 140 mg XAD-2 sorbent or equivalent with a short plug of polyurethane foam. The back section is held in place by a long plug of polyurethane foam. The tube is available commercially as the OVS-2 sampler. See Figure 2. NOTE: Some OVS-2 tubes contain glass fiber filters, as specified in the OSHA methods (see Table 10). These tubes, however, did not perform as well for the more polar analytes (amides, phosphoramides, and sulfoxides; see Table 9). Low or erratic recoveries for Malathion may be encountered with glass fiber filters. Personal sampling pump, 0.2 to 1 L/min. with flexible connecting tubing, preferably silicon, polyethylene, or PTFE tubing. Vials, 4-mL with PTFE-lined cap; 2-mL GC autosampler vials with PTFE-lined crimp caps. Gas chromatograph, flame photometric detector with 525-nm bandpass filter for phosphorus mode, integrator, and column (Table 6). Syringes, 5-mL and 100-, 50-, and 10-mL for making standard solutions and GC injections. Volumetric flasks, 500-, 10-, and 2-mL. Tweezers. GC vial crimper. Small ultrasonic cleaning bath. SPECIAL PRECAUTIONS: Organophosphorus compounds are highly toxic. Special care must be taken to avoid inhalation or skin contact through the wearing of gloves and suitable clothing when handling pure material [13-17]. Toluene is flammable and toxic. Acetone is highly flammable. Prepare all samples in a well ventilated hood. SAMPLING: 1. Calibrate each personal sampling pump with a representative sampler in line. 2. Connect the sampler to personal sampling pump with flexible tubing. The sampler should be placed vertically with the large end down, in the worker's breathing zone in such a manner that it does not impede work performance. [4, 12] Sample at an accurately known flowrate between 0.2 and 1 L/min for a total sample size of 12 to 240 L. NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 3 of 20 4. Cap both ends of the sampler with plastic caps and pack securely for shipment. SAMPLE PREPARATION: 5. Remove cap from large end and remove PTFE retainer ring; transfer filter and front XAD-2 section to a 4-mL vial. Transfer the short polyurethane foam plug along with back-up XAD-2 section to a second 4-mL vial. 6. Add 2 mL of desorbing solvent to each vial using a 5-mL syringe or 2-mL pipette. Cap each vial. 7. Allow to stand 30 minutes, immerse vials approximately 15 mm in an ultrasonic bath for 30 minutes. Alternatively, place the vials in a shaker or tumbler for 1 hour. 8. Transfer 1 to 1.5 mL from each 4-mL vial to a clean 2-mL GC vial, cap and label. CALIBRATION AND QUALITY CONTROL: 9. Calibrate daily with at least six working standards covering the analytical range of the method for individual analytes. a. Add known amounts of calibration spiking solution (SS-1 or SS-2 according to schedule in Table 11) to desorbing solution in 2-mL volumetric flasks and dilute to the mark. NOTE: If an internal standard is included in the desorbing solution, then exactly 2 mL of desorbing solution in a volumetric flask must be concentrated slightly under a gentle stream of nitrogen in order to accommodate the specified volume of the spiking solutions. After adding the spiking solutions to the slightly concentrated desorbing solution, dilute to the 2-mL mark with toluene or 90/10 toluene/acetone. b. Include a calibration blank of unspiked desorbing solution. c. Analyze together with field samples, field blanks, and laboratory control samples (steps 12 and 13). d. Prepare calibration graph (peak area vs. |jg analyte), or if internal standard (IS) is used (peak area of analyte/peak area of IS vs. |jg analyte). 10. Prepare Laboratory Control Samples (LCS) with each sample set, in duplicate. a. Remove cap from large end of sampler tube. Apply 30 |JL of spiking solution SS-1 to face of quartz fiber filter. Cap and allow to stand for a minimum of 1 hour. Preferably, these should be prepared as soon as samples arrive and should be stored with the field samples unfil analyzed. b. Include an unspiked sampler as a media blank. c. Analyze along with field samples and blanks, and liquid calibration standards (steps 12 through 16). 11. When extending application of this method to other organophosphorus compounds, the following minimal desorpfion efficiency (DE) test may be performed as follows: a. Determine the NIOSH REL, OSHA PEL, or ACGIH TLV in mg/m ^ b. Prepare spiking solufion SS-1 (refer to Table 11, or use the following formulae, which are specific for the calculafion of the weight of analyte to add to 10 mL toluene/acetone 90:10). For REL > 1 mg/m ^ (assuming 12-L collecfion vol.), let W = REL x 4 m ^ For REL < 1 mg/m^ (assuming 120-L collecfion vol.), let W = REL x 40 m ^ where W = weight (mg) of analyte to dissolve into 10 mL of desorbing solvent. Let [SS-1] = W/10 mL where [SS-1] = concentration of spiking solution SS-1 in mg/mL. Let [SS-2] = [SS-1] x 0.1 where [SS-2] = concentration of spiking solufion SS-2. d. Prepare three tubes at each of five levels plus three media blanks. Concentrafion at each level may be calculated using formulae in entry 20, part 11 of Table 11. i. Remove plasfic cap from large end of sampler, apply appropriate volume of spiking solution to face of quartz fiber filter following schedule in part 1 of Table 11. ii. Cap and allow sampler to stand overnight. e. Prepare tubes for analysis (Steps 5 through 8). f Analyze with liquid standards (Steps 12 and 13). NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 4 of 20 g. Prepare a graph of desorpfion efficiency (DE) vs. |jg of analyte. h. Acceptable desorption criteria for 6 replicates is >75% average recovery with a standard deviafion of <±9%. MEASUREMENT: 12. Set gas chromatograph according to manufacturer's recommendafions and to condifions listed in Table 6 and on page 5600-1. Inject sample aliquot manually using solvent flush technique or with autosampler. See Table 7 for retention times of selected analytes. NOTE: If peak area is greater than the linear range of the working standards, dilute with desorijing solution or with desorbing solufion (containing internal standard) and reanalyze. Apply the appropriate dilufion factor in calculafions. 13. Measure peak area of analyte and of internal standard. CALCULATIONS: 14. Determine the mass in pg (corrected for DE) of respective analyte found in the sample front (W ,) and back (W^,) sorbent sections, and in the media blank front (B ,) and back (BJ sorbent secfions. NOTE: The filter is combined with the front section. If W t, > W/10, report breakthrough and possible sample loss. 15. Calculate concentrafion, C, of analyte in the air volume sampled, V (L): CONFIRMATION: 16. Whenever an analyte is detected, and its idenfity is uncertain, confirmafion may be achieved by analysis on a second column of different polarity. If primary analysis was performed using a non-polar or weakly polar column (DB-1 or DB-5), confirmation should be accomplished by reanalysis on a polar column (DB-1701 or DB-210). See Table 7 for approximate retenfion fimes for each column type. Fewer analytes co-elute on DB-210 than on DB-1701. Relafive retenfion fimes are more convenient for the identificafion of unknown analytes. If Parathion is not used as the retention time reference compound, then another related compound such as tributyl phosphate, Ronnel, or triphenyl phosphate may be subsfituted. EVALUATION OF METHOD: This method was evaluated over the ranges specified in Table 5 at 25 °C using 240-L air samples. Sampler tubes were tested at 15% and 80% relafive humidity and at 10 °C and 30 °C. In these tests, test atmospheres were not generated; instead, analytes were fortified on the face of the sampler filters. This was followed by pulling condifioned air at 1 L/min. for 4 hours. No difference in sampler performance was noted at any of these temperature/humidity combinafions. Evaluafions of sampler precision and stability were conducted at 30 °C and 15% relafive humidity. Overall sampling and measurement precisions, bias, accuracy, and average percent recovery after long-term storage are presented in Table 5. No breakthrough was detected after 12 hours of sampling at 1 L/min with a sampler fortified with the equivalent of 4x the NIOSH REL. Malathion and Ronnel were tested at 1/40 x REL, Sulprofos at 1/20 x REL (See Table 5, note 4). All criteria [9] were met. NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 5 of 20 REFERENCES: [I] Sweet, D.V, Ed., Registry of Toxic Effects of Chemical Substances, DHHS (NIOSH) Publ. No. 87- 114 (1987). [2] Merck Index. 11th ed., S. Budavari, Ed., Merck and Co., Rahway, NJ (1989). [3] Farm Chemicals Handbook. Meister Publishing Co., Willoughby, OH (1991). [4] OSHA Stopgap Methods for individual organophosphorus pesticides (Refer to by compound name). Carcinogen and Pesficide Branch, OSHA Analytical Laboratory, Salt Lake City, UT. [5] NIOSH Recommendafions for Occupational Safety and Health, DHHS (NIOSH) Publ. No. 92-100 (1992). [6] NIOSH Pocket Guide to Chemical Hazards, U.S. Dept. of Health and Human Services, (NIOSH) Publ. No. 90-117 (1990). [7] NIOSH Manual of Analytical Methods, 2nd ed., v. 1, P & CAM 158; v. 3, S208, S209, S210, S285, S295, and S370; v. 5, P & CAM 295; v. 6, P & CAM 336, S280, S296, and S299, U.S. Dept. Health, Educafion, and Welfare, (NIOSH) Publ. 77-157-C (1977). [8] NIOSH Manual of Analytical Methods, 3rd. ed.. Methods 2503, 2504, 5012, and 5514, U.S. Dept. of Health and Human Services, (NIOSH) Publ. 84-100 (1984) [9] Backup Data Report for Organophosphorus Pesticides, prepared under NIOSH Contract 200-88- 2618 (unpublished, 1992). [10] J & W Catalog of High Resolufion Chromatography Products, 1991. [II] Hill, Robert H., Jr., and James E. Amold. A Personal Air Sampler for Pesficides, Arch. Environ. Contam. Toxicol., fi, 621-628 (1979). [12] OSHA Method 62, OSHA Analytical Methods Manual, Carcinogen and Pesticide Branch, OSHA Analytical Laboratory, Salt Lake City, UT. [13] Criteria for a Recommended Standard...Occupational Exposure to Malathion, U.S. Dept. Health, Education, and Welfare, (NIOSH) Publ. 76-205 (1976). [14] Criteria for a Recommended Standard...Occupafional Exposure to Parathion, U.S. Dept. Health, Educafion, and Welfare, (NIOSH) Publ. 76-190 (1976). [15] Criteria for a Recommended Standard...Occupafional Exposure to Methyl Parathion, U.S. Dept. Health, Education, and Welfare, (NIOSH) Publ. 77-106 (1976). [16] Criteria for a Recommended Standard...Occupafional Exposure During the Manufacture and Formulafion of Pesticides, U.S. Dept. Health, Education, and Welfare, (NIOSH) Publ. 78-174 (1978). [17] Occupafional Exposure to Pesficides...Report to the Federal Working Group on Pest Management from the Task Group on Occupafional Exposure to Pesticides; Federal Working Group on Pest Management, Washington, DC, January 1974, U.S. Govt. Prinfing Office: 1975 0-551-026. [18] 1993-1994 Threshold Limit Values for Chemical Substances and Physical Agents, American Conference of Governmental Industrial Hygienists, Cincinnati, OH (1993). METHOD WRITTEN BY: John M. Reynolds and Don C. Wickman, DataChem Laboratories, Salt Lake City, UT. NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 6 of 20 Table 1. Formula and Registry Numbers Compound MVyd) Empirical Structural (alphabetically) (Daltons) Formula FoQAffl* fttecs'^' 1. /\zinphos methyl 317.32 C10H12N3O3PS2 (CH30)2P(=S)SCH 2(C7H4N3O)86-50-0TE1925000 2. Chlorpyrifos 350.58 CgHi.CljNOjPS (C2H5O)2P(=S)O(C5HN)Cl32921-88-2TF6300000 3. Diazinon 304.34 C12H21N2O3PS (C2H50)2P(=S)0(C 4HN2)(CH3)CH(CH 3)2333-41 -5 TF3325000 4. Dicrotophos 237.19 CgHieNOgP (CH30)2P(=0)OC(CH 3)=CHC(=0)N(CH 3)2141-66-2 TC3850000 5. Disulfoton 274.39 C8H19O2PS3 (C2H5O)2P(=S)S(CH2)2SC2Hg298-04-4TD9275000 6. Ethion 384.46 C9H22O4P2S4 [(C2H5O)2P(=S)S]2CH^63-12-2TE4550000 7. Ethoprop 242.33 C8H.|g02PS2 (C3H7S)2P(=0)OC 2H513194-48-4 TE4025000 8. Fenamiphos 303.36 C.aH^^NOjPS (CH3)2CHNHP(=0)(0[C2H5])0(C6H3)(CH3)SCH3 22224-92-6 TB3675000 9. Fonofos 246.32 C10H15OPS2 C2H5OP(C2H5)(=S)S(C6H5)944-22-9TA5950000 10. Malathion 330.35 C10H19O6PS2 (CH30)2P(=S)SCH[C(=0)OC 2H5]CH2C(=0)OC2H5 121-75-5 WM8400000 11. Methamidophos 141.12 C2H8NO2PS CH3OP(=O)(NH2)SCH3l0265-92-6TB4970000 12. Methyl parathion 263.20 CsH.oNOsPS (CH30)2P(=S)0(C 6H4)NO2298-00-0TG0175000 13. Mevinphos (E) 224.15 CyHisOeP (CH30)2P(=0)OC(CH3)=CHC(=0)OCH ^98-01-1 GQ5250100 Mevinphos (E & Z) 7786-34-7 <^'"GQ5250000 14. Monocrotophos (Z) 223.17 C^H.^NOgP (CH30)2P(=0)OC(CH3)=CHC(=0)NHCH ^19-44-8 TC4981100 Monocrotophos (E) 6923-22-4'^'"TC4375000 15. Parathion 291.26 C.oH.^NO^PS (C2H5O)2P(=S)O(C6H4)NO256-38-2TF4550000 16. Phorate 260.36 C7H17O2PS3 (C2H5O)2P(=S)SCH2SC2H^98-02-2TD9450000 17. Ronnel 321.54 C8H8CIP3PS (CH30)2P(=S)0(C 6H2)Cl3299-84-3 TG0525000 18. Sulprofos 322.43 C.12H19O2PS3 C2H50P(S[C3H7])(=S)0(C6H4)SCH 335400-43-2 TE4165000 19. Terbufos 288.42 C9H21O2PS3 (C2H50)2P(=S)SCH 2SC(CH 3)313071 -79-9 TD7740000 NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 7 of 20 (1) Molecular weights calculated from the empirical formula using 1979 lUPAC Atomic Weights of the Elements. (2) RTECS = NIOSH Registry of Toxic Effects of Chemical Substances [1]. (3) Merck Index [2]. (4) Farm Chemicals Handbook [3]. NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 8 of 20 Table 2. Toxicity and Maximum Exposure Limits Compound STEL (alphabefically) LD50, mg/Kg' ,(1) OSHA PEL'" NIOSH REL' mg/m^ (ppm) (5) ACGIH TLV ma/mftiq/m^ 1. Azinphos methyl 2. Chlorpyrifos 0.6<'' 3. Diazinon 4. Dicrotophos 5. Disulfoton 6. Ethion 7. Ethoprop 8. Fenamiphos 9. Fonofos 10. Malathion 11. Methamidophos 12. Methyl parathion 13. Mevinphos 0.27'^' 14. Monocrotophos (skin) 15. Parathion 16. Phorate 0 2 <^'^' 17. Ronnel 18. Sulprofos 19. Terbufos 11 f 145 250 m, 285 f 16 f, 21 m 2.3 f, 6.8 m 27 f, 65 m 61.5'^» 10 3 f, 13 m<" 1000 f, 1375 m 25 m, 27 f 14 m, 24 f 3.7 f, 6.1 m 17 m,20 f 3.6 f, 13 m 1.1 f, 2.3 m 1250 m, 2630 f 227 1.6-4.5 m, 9.0 f 0.2 0.2 0.1 0.25 0.1 0.4 0.1 0.1 10 0.2 0.1 0.25 0.1 0.05 10 1 0.2 (0.015) 0.2 (skin) 0.2 (0.014) 0.2 (skin) 0.1 (0.008) 0.1 (skin) 0.25 (0.026) 0.25 (skin) 0.1 (0.009) 0.1<" (skin) 0.4 (0.025) 0.4 (skin) 0.1 (0.008) 0.1 (Skin) 0.1 (0.010) 0.1 (skin) 10 (0.740) 10 (skin) 0.2 (0.019) 0.2 (Skin) 0.1 (0.011) 0.1 (skin) 0.25 (0.027) 0.25*^' 0.05 (0.004) 0.1 (skin) 0.05 (0.005) 0.05 (skin) 10 (0.760) 10 (skin) 1 (0.076) 1<^' (skin) (1) Rat-oral; from Merck Index, unless otherwise noted, f = female, m = male [2]. (2) Farm Chemicals Handbook [3]. (3) RTECS [1]. (4) OSHA Final Rule, 1989 (unenforceable, 1992); only Malathion and Parathion had previous PELs. (5) NIOSH Recommendafions for Occupational Safety and Health [5]. (6) ACGIH [18], NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 9 of 20 Table 3. Physical Propertie^^' Liquid Density Compound Solubility in Water (alphabetically) at 20 °C) (g/mL) MP (°C) BP °C (mm Hg) Vapor Pressure Pascal mm Hg (S). °C(mq/L 25 20 1. Azinphos methyl 1.44 73-74 unstable >200 0.00018 1.35x10-^ 20(3) 30<" 2. Chlorpyrifos none found 41-42 — 0.0025 1.87x10' 3. Diazinon 1.116-1.118 liquid decomp. >120 0.019 1.4x10^ 40 4. Dicrotophos 1.216 liquid 400 (760) none found miscible 5. Disulfoton 1.144 Oil — 0.024 LSxIO"* neariy insol. 0.0074 5.4x10"' 20(3) insol.'" 6. Ethion 1.220 -12 to-13 — 0.0002 1.5x10"^ slighfiy sol. 7. Ethoprop 1.094 Oil — 0.047 3.5x10^ 750 8. Fenamiphos none found 49 — 0.00012 9x10"^ 20(3) 329 9. Fonofos 1.16 liquid — none found 13'^' 10. Malathion 1.23 2.9 156 (0.7)''' 0.005 4x10' 30"' 145 11. Methamidophos 1.31 54. — 0.04 3x10-^ readily sol. 0.0023 1.7x10' 20(3) — 12. Methyl parathion 1.358 37-38 0.0002 1.5x10"® 20(3) 50 13. Mevinphos 1.25 20.6'" 325 (760) '" 0.4 3x10"^ 20'" miscible 0.29 2.2x10"^ 20(7) — 14. Monocrotophos none found 54-55'^' — 0.0009 7x10"® NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 20 26 30 20 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 10 of 20 miscible 15. Parathion 1.26 6 20(6) 20 20(3) 10(8) 16. Phorate 1.156 liquid 50 17. Ronnel sp. gr=1.48'^' 41 40 @ 25 °C 18. Sulprofos 1.20 liquid 20(3) neariy insol.'" 19. Terbufos 1.105 -29.2 10-15 375 (760) 118-120(2.0)'" 0.11 210 (0.1) (6) 0.005 3.78x10"' 0.00089 6.7x10"® 0.11 8.4x10^ 20 0.1 8.x10^ 25 <0.0001 <10"® none found (1) From Merck Index, unless othenA/ise noted [2]. °C for commercial mixture. (2) NIOSH 2nd Edifion Method for Ronnel, S299 [7]. (EPN, Malathion, Parathion) [8]. (3) Farm Chemicals Handbook [3]. specific analyte Method) [4]. (4) NIOSH 3rd Edifion Method 2503 for Mevinphos [8]. (5) 54-55 °C for pure material, 25-30 (6) NIOSH 3rd Edifion Method 5012 (7) OSHA Stopgap Methods (See (8) NIOSH Pocket Guide [6]. NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 11 of 20 Table 4. Synonyms Compound'^' (alphabefically) Other name .(2) 1. /Azinphos methyl Guthion* S-[(4-oxo-1,2,3-benzotriazin-3(4H)-yl)methyl] ester '" 2. Chlorpyrifos Dursban* 0-(3,5,6-trichloro-2-pyridinyl) ester '" 3. Diazinon Spectracide* 0-[6-methyl-2-(1-methylethyl)-4-pyrimidinyl] ester '" 4. Dicrotophos Bidrin* 3-(dimethylamino)-1-methyl-3-oxo-1-propenyl dimethyl ester cis-3-hydroxy-N,N-dimethylcrotonamide '" 5. Disulfoton Di-Syston* S-[2-(ethylthio)ethyl] ester <" 6. Ethion 0,0,0',0'-tetraethyl ester'" S,S'-methylenediphosphorodithioate '"' 7. Ethoprop Prophos* 8. Fenamiphos Nemacur*,Phenamiphos '^' 3- methyl-4-(methylthio)phenyl ester '" 4- (methylthio)-m-tolyl ethyl ester '"' 9. Fonofos Dyfonate* ester'" ester'" 10. Malathion diethyl ester'" Cythion* 0,0-dimethylphosphorodithioate '" 11. Methamidophos Monitor* 12. Methyl parathion Parathion Methyl 0-(4-nitrophenyl) ester'" 13. Mevinphos Phosdrin* (1) CAS Name Phosphorodithioic acid, 0,0-dimethyl Phosphorothioic acid, 0,0-diethyl Phosphorothioic acid, 0,0-diethyl Phosphoric acid, (3) Phosphoric acid, dimethyl ester, ester with Phosphorodithioix acid, 0,0-diethyl Phosphorodithioic acid, S,S'-methylene 0,0,0',0'-Tetraethyl Phosphorodithioic acid, 0-ethyl S,S-dipropyl ester '" (l-Methylethyl)phosphoramidic acid, ethyl Phosphoramidic acid, isopropyl-. Ethyl phosphonodithioic acid, 0-ethyl S-phenyl Phosphonodithioic acid, ethyl-, 0-ethyl S-phenyl [(Dimethoxyphosphinothioyl)thio]butanedioic acid Succinic acid, mercapto-, diethyl ester, S-ester with Phosphoramidothioic acid, 0,S-dimethyl ester '" Phosphorothioic acid, 0,0-dimethyl 3-[(Dimethyoxyphosphinyl)oxy]-2-butenoic acid. NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 12 of 20 methyl ester (3) phosphate'''' 14. Monocrotophos Azodrin* [1-methyl-3-(methylamino)-3-oxo-1-propenyl] ester '" (E)-3-hydroxy-N-methylcrotonamide '" 15. Parathion Ethyl Parathion'^' ester'" 16. Phorate Thimet* S-[(ethylthio)methyl] ester'" 17 Ronnel Fenchlorphos'^' 0-(2,4,5-trichlorophenyl) ester'" 18. Sulprofos Bolstar* 0-[4-(methylthio)phenyl] S-propyl ester '" 19. Terbufos Counter* S-[[(1,1-dimethylethyl)thio]methyl] ester '" Crotonic acid, 3-hydroxy-, methyl ester dimethyl Phosphoric acid, dimethyl Phosphoric acid, dimethyl ester, ester with Phosphorothioic acid, 0,0-diethyl 0-(4-nitrophenyl) Phosphorodithioic acid, 0,0-diethyl Phosphorothioic acid, 0,0-dimethyl Phosphorodithioic acid, 0-ethyl Phosphorodithioic acid, 0,0-diethyl (1) Common name as given in Farm Chemicals Handbook [3]. (2) *=Trade name (Trademark or Registered Name) as given in Farm Chemicals Handbook [3]. (3) Merck Index [2]. (4) RTECS [1] or alternate CAS name in Merck Index [2]. NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 13 of 20 Table 5. Method Evaluatiori" A. B. CDB3. Compound Ranae Studied'^' Accuracv Bias Precision % Recovery (alphabetically) mg/m^ mg/sample Ave. R@i«^^iS^ment$S;30 days 25 °C (0 °C) 1. /\zinphos methyl 0.02-0.4 0.0048-0.096 ± 0.178 -0.038 (-0.120 - +0.028) 0.070 0.030 97 (105) 2. Chlorpyrifos 0.02-0.4 0.0048-0.096 ± 0.163 -0.027 (-0.054 - +0.017) 0.068 0.018 92 (90) 3. Diazinon 0.01-0.2 0.0024-0.048 ±0.162 -0.032 (-0.057 - -0.005) 0.065 0.020 94 (93) 4. Dicrotophos 0.025-0.5 0.006-0.120 ±0.169 -0.037 (-0.102 - -0.032) 0.066 0.025 89 (92) 5. Disulfoton 0.01-0.2 0.0024-0.048 ± 0.196 -0.064 (-0.081 - -0.032) 0.066 0.024 87 (89) 6. Ethion 0.04-0.8 0.0096-0.192 ± 0.165 -0.029 (-0.056 - -0.003) 0.068 0.018 96 (95) 7. Ethoprop'" 0.01-0.2 0.0024-0.048 ± 0.157 -0.025 (-0.058 - +0.025) 0.066 0.024 97 (93) 8. Fenamiphos 0.01-0.2 0.0024-0.048 ± 0.155 -0.029 (-0.066 - +0.002) 0.063 0.022 94 (96) 9. Fonofos 0.01-0.2 0.0024-0.048 ± 0.168 -0.036 (-0.076 - +0.008) 0.066 0.023 95 (92) 10. Malathion'" 0.025-0.5 0.006-0.120 ± 0.172 -0.038 (-0.064 - -0.014) 0.067 0.019 93 (93) 11. Methamidophos'" 0.02-0.4 0.0048-0.096 ± 0.156 -0.018 (-0.046 - +0.011) 0.069 0.026 88 (95) 12. Methyl parathion 0.02-0.4 0.0048-0.096 ± 0.160 -0.034 (-0.082 - +0.016) 0.063 0.018 95 (95) 13. Mevinphos 0.01-0.2 0.0024-0.048 ± 0.176 -0.042 (-0.061 - -0.004) 0.067 0.028 89 (91) 14. Monocrotophos 0.025-0.5 0.006-0.120 ± 0.185 -0.043 (-0.047 - -0.020) 0.071 0.026 88 (92) 15. Parathion 0.005-0.1 0.0012-0.024 ± 0.163 -0.021 (-0.045 - +0.011) 0.071 0.019 92 (92) NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 14 of 20 16. Phorate 0.005-0.1 0.0012-0.024 ± 0.202 -0.070 (-0.097 --0.047) 0.066 0.025 91 (91) 17. Ronnel'" 0.025-0.5 0.006-0.120 ±0.172 -0.040 (-0.076 -+0.021) 0.066 0.018 95 (94) 18. Sulprofos'" 0.01-0.2 0.0024-0.048 ± 0.181 -0.047 (-0.054 --0.031) 0.067 0.017 94 (94) 19. Terbufos'" 0.01-0.2 0.0024-0.048 ±0.188 -0.054 (-0.091 --0.024) 0.067 0.022 92 (91) (1) NIOSH Back-up Data Report [9] (2) The ranges studied were 1/10 to 2x the NIOSH REL (except as noted) sampling at 1 L/min for 4 hours. (3) No NIOSH REL or OSHA PEL available; used 0.1 mg/m ^ (4) Malathion and Ronnel were studied at 1/400 to 1/20 the NIOSH REL, Sulprofos at 1/200 to 1/10 the NIOSH REL. (5) No NIOSH REL or OSHA PEL available; used 0.2 mg/m \ NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 15 of 20 Table 6. Recommended Gas Chromatographic Columns and Condition^' Parameter Wide Bore Fused Silica Capillary Column Stafionary Phase DB-1 Polarity non-polar Length (meters) 30 l.D. (millimeters) 0.32 Film thickness (mm) 0.25 Injecfion (vol., mode) 1 jjL, SPL Oven Temperatures Inifial (°C) 100 Final (°C) 275 Max. Recommended (°C) 325 Program (°C/min.) 3.0 Carrier Gas (Helium) Head pressure (p.s.i.) 15 DB-5 weakly polar 30 0.32 1,0 1 pL, DIR 125 275 325 4.0 DB-1701 mod. polar 30 0.32 1.0 1 |JL, DIR 125 275 280 4.0 15 15 DB-210 mod. polar 30 0.32 0.25 1 |JL, SPL 100 250 240/260 3.0 15 (1) (2) (3) (4) (5) (6) Actual conditions may vary depending on column and analytical objectives. The condifions given above are those corresponding to the RT data in Table 7. DB-1, 100% methyl silicone; DB-5, 5% phenyl, 95% methyl silicone; DB-1701, 14% cyanopropylphenyl, 86% methyl silicone; DB-210, 50% trifluoropropyl, 50% methyl silicone. Other phase types may also work well. Thinner films give faster separations at lower temperatures promoting analyte stability. Use 2-mm i.d. injecfion port lines for 0.5-|JL injecfion and 4-mm i.d. injecfion port liners for 1-to-2-|jL injecfions with 0.32-mm i.d. capillary columns. SPL = splifiess mode, inifial oven temperature 5-10 °C < BP of desorpfion solvent; DIR = direct mode, initial oven temperature 5-10 °C > BP of desorpfion solvent. In both modes, split-vent off time should be 60 sec for 1-2 |jL injecfions with 4-mm ID injection port liners, and 20-30 sec for 0.5-|JL injecfions with 2-mm ID injecfion port liners. Use 2-mm ID injection port liners for 0.5-|JL injection and 4-mm ID injecfion port liners for 1-2 pL injecfions with 0.32-mm ID capillary columns. J & W Scientific Catalog, p. 21. [10] NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 16 of 20 Table 7. Approximate Retention Times of Selected Organophosphorous Compounds' Compound y RT on DB-1) Caoillarv Column'^' (t Compound y RT on DB-1) DB-1 DB-5 DB-1701 DB-210 (t Compound y RT on DB-1) RT RRT<^' Elution RT, RT, RT, min T, X<'' min min min 1. TEPP 3.71 0.128 111 5.47 7.18<^' 7.88 2. Triethyl phosphorothioate 4.37 0.151 113 6.34 7.14('> 4.93 3. Methamidophos 5.12 0.177 115 7.64 13.61 12.03 4. Dichlorvos 5.81 0.200 117 8.24 10.67 10.54 5. Mevinphos 10.45 0.360 131 12.92 16.69 19.20 6. Ethoprop 17.15 0.592 151 19.09 21.52 20.10 7. Naled 17.61 0.608 153 no data 23.17(C) 21.46*^' 8. Dicrotophos 18.00 0.621 154 19.94 25.84'^' 31.43 9. Monocrotophos 18.27 0.630 155 20.12 28.11 23.09*'^' 31.60 10. Sulfotepp 19.06 0.658 157 no data 28.11 23.09*'^' 21.11 11. Phorate 19.18 0.662 158 20.94 23.10**^' 18.92 12. Dimethoate 19.44 0.671 158 21.84 no data 29.33*" 13. Demeton-S 20.15 0.695 160 21.70 25.06*°' 24.97 14. Dioxathion 21.30 0.735 164 23.04 26.33*''' 23.46 15. Fonofos 22.04 0.760 166 23.57 25.87<^' 22.20 16. Terbufos 22.22 0.767 168 23.80 25.02<°' 21 52(H) 17. Disulfoton 23.09 0.797 169 24.19 26.43"'' 22.78 18. Diazinon 23.37 0.806 170 23.75 25.00<°' 20.99 19. Methyl parathion 25.37 0.875 176 26.48 31.37 33.21 20. Oxydemeton methyl 26.(5) 0.90 179 no data no data no data 21. Ronnel 26.86 0.927 181 27.39 29.30 26.27 22. Pirimiphos methyl 28.13 0.971 184 27.90 29.72 26.77 23. Malathion 28.53 0.984 186 28.33 31.78*'^' 33.08*-" 24. Fenthion 28.74 0.992 186 28,93 31.78*°' 29.35*" 25. Parathion 28.98 1.000 187 29.10'^' 33.28 35.60 26. Chlorpyrifos 29.11 1.004 187 29. lO*'^' 30.79 27.72 27. Crufomate 29.64 1.023 189 29.54 34.00 35.34 28. Isofenphos 31.91 1.101 196 31.17 33.81 33.02*-" 29. Tetrachlorvinphos 33.26 1.148 200 32.60 35.96 37.01 30. Fenamiphos 34.09 1.176 202 33.03 37.14 38.95 31. Merphos 35.19 1.214 206 no data 30.57 23.89 32. Fensulfothion 36.61 1.263 210 35.78 42.41 46.98 33. Ethion 37.88 1.307 214 36.30 39.30 37.96 34. Sulprofos 38.49 1.328 216 36.96 39.54 37.11 35. Triphenyl phosphate 40.88 1.411 223 39.06 no data no data 36. EPN 42.64 1.471 228 41.06 47.83 47.13 37. Azinphos methyl 44.16 1.524 232 43.67 no elufion 49.24 38. Leptophos 45.12 1.557 235 43.91 47.38 41.68 39. Azinphos ethyl 46.55 1.606 240 46.50 47.43 50.40 40. Coumaphos 49.31 1.702 248 50.10 67.86 60.88 (1) (2) (3) (4) (5) Actual retention fimes (RT) will vary with individual columns and chromatographic condifions. See Table 9 for chromatographic performance notes. Capillary Column conditions given in Table 6. Data from Backup Data Report [9], Sets of co-elufing or nearly co-elufing peaks are idenfified by letters: (A), (B), (C), (D), (E), (F), (G), (H), (1), and (J) Retenfion times relafive to Parathion. Elufion temperature (°C) for DB-1 column (see Table 6 for column conditions.) Elufion temperatures are provided for convenience in selecting approximate GC oven temperatures for isothermal analyses of single or several closely eluting analytes. Broad, tailing peak. NlOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 17 of 20 Table 8. Applicable Working Range and Estimated LOD A. B. F. G. Applicable Working Range Estimated LOD Compound Sensitivity*^' (alphabetically) REL/LOD Atmospherid^' Sample' ,(4) mglm" ppm (3) Margin of Instrument**' Instruiaritttpfa^t^hericf" |jg/sample ng on column ng on co(igyBBmp1g/m" 1. /kzinphos methyl 0.02-0.6 0.0015-0.046 2.4 to 72 1.2-36 0.06 0.12 0.0012 167 2. Chlorpyrifos 0.02-0.6 0.0014-0.042 2.4 to 72 1.2-36 0.02 0.04 0.0004 500 3. Diazinon 0.01-0.3 0.0008-0.024 1.2 to 36 0.6-18 0.02 0.04 0.0004 250 4. Dicrotophos 0.025-0.75 0.0026-0.077 3.0 to 90 1.5-45 0.1 0.2 0.002 125 5. Disulfoton 0.01-0.3 0.0009-0.027 1.2 to 36 0.6-18 0.02 0.04 0.0004 250 6. Ethion 0.04-1.2 0.0025-0.076 4.8 to 144 2.4-72 0.02 0.04 0.0004 1000 7. Ethoprop 0.01-0.3 0.0010-0.030 1.2 to 36 0.6-18 0.02 0.04 0.0004 (7) 8. Fenamiphos 0.01-0.3 0.0008-0.024 1.2 to 36 0.6-18 0.07 0.14 0.0014 71 9. Fonofos 0.01-0.3 0.0010-0.030 1.2 to 36 0.6-18 0.02 0.04 0.0004 250 12. to 360*^' 6.-180*^' 10. Malathion 1.0-30 0.074-2.2 12. to 360*^' 6.-180*^' 0.05 0.1 0.001 10,000 11. Methamidophos 0.02-0.6 0.0035-0.10 2.4 to 72 1.2-36 0.3 0.6 0.005 (7) 12. Methyl parathion 0.02-0.6 0.0019-0.056 2.4 to 72 1.2-36 0.02 0.04 0.0004 500 13. Mevinphos 0.01-0.3 0.0011-0.033 1.2 to 36 0.6-18 0.06 0.12 0.0012 83 14. Monocrotophos 0.025-0.75 0.0027-0,082 3.0 to 90 1.5-45 0.2 0.4 0.004 63 15. Parathion 0.005-0.15 0.0004-0.013 0.6 to 18 0.3-9 0.02 0,04 0.0004 125 16. Phorate 0.005-0.15 0.0005-0.014 0.6 to 18 0.3-9 0.02 0.04 0.0004 125 NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 18 of 20 17. Ronnel 1.0-30 0,076-2.3 12. to 360*^' 6.-180*^' 0.02 0.04 0.0004 25,000 18. Sulprofos 0.1-3.0 0.0076-0.23 12. to 360 6.-180 0.03 0.06 0.0005 2000 19. Terbufos 0.01-0.3 0.0008-0.026 1.2 to 36 0.6-18 0.02 0.04 0.0004 (7) (1) To cover range of 1/10 to 3x NIOSH REL. (2) REL in mg/m' (Table 2) - Atmospheric LOD (Column G, Table 8). (3) Calculated for 25 °C and 760 mm Hg (NTP). (4) Calculated for a collection volume of 120 L (2 h (g 1 L/min, 4 h (g 0.5 L/min, or 10 h (g 0.2 L/min). (5) Calculated for a collection volume of 12 L (12 min @ 1 L/min, 24 min @ 0.5 L/min, or 1 h @ 0.2 L/min). (6) Desorbing sample in 2.0 mL solvent and injecfing 1 \JL into gas chromatograph. (7) No REL NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 19 of 20 Table 9. Notes on Analytical Characteristics of Organophosphorous Compoundii' Analytical Characteristics Compound (Alphabetically) A B C Chemical Desorpfion Gas and Physical and Solufion Chromatography 1. /\zinphos methyl (Guthion*) 3,5,6 2. Azinphos ethyl (Guthion ethyl) 5 3. Chlorpyrifos (Dursban*) 4. Coumaphos (Co-Ral*) 5 5. Crufomate (Ruelene*) 1 1,4 1 6. Demeton (Systox*) 2,6 5 3 7. Diazinon (Spectracide*) 8. Dichlorvos (DDVP, Vapona*) 7 4 9. Dicrotophos (Bidrin*) 10. Dimethoate (Cygon*) 1 1,4 1 11. Dioxathion (Delnav*) 12. Disulfoton (Di-Syston*) 2 2 13. EPN (Santox*) 5 14. Ethion 15. Ethoprop (Prophos*) 16. Fenamiphos (Nemacur*) 1 1,4 1 17. Fensulfothion (Dasanit*) 3 4 18. Fenthion (Baytex*) 5 19. Fonofos (Dyfonate*) 20. Isofenphos (Oftanol*) 1 1 1 21. Leptophos (Phosvel*) 5 5 22. Malathion (Cythion*) 23. Merphos (Folex*) 4 5 2 24. Methamidophos (Monitor*) 1 1,3,4 1,4 25. Methyl parathion (Parathion methyl) 26. Mevinphos (Phosdrin*) 6,7 3,4 27. Monocrotophos (Azodrin*) 1 1,2,4 1 28. Naled (Dibrom*) 5 5 2 29. Oxydemeton methyl (Metasystox-R) 3 1,5 1,2 30. Parathion (Ethyl parathion) 31. Phorate (Thimet*) 2,7 2 32. Pirimiphos methyl (Actellic*) 4 33. Ronnel (Fenchlorphos) 34. Sulfotepp (TEDP) 35. Sulprofos (Bolstar*) 36. TEPP 7 5 4 37. Terbufos (Counter*) 2 2 38. Tetrachlorvinphos (Gardona*) 39. Tributyl phosphate 7 40. Triphenyl phosphate 7 * _ Trade name. Registered name, or Trademark (Farm Chemicals Handbook [3]). (1) Observations made during selecfion and validation of selected analytes [9]; refer to notes on the NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 20 of 20 Table 9 (Continued) - Notes on ANALYTICAL CHARACTERISTICS A. CHEMICAL AND PHYSICAL 1. Amide or phosphoramide, some slightly acidic, very polar chemically. 2. AlkyI thioether, easily oxidized to sulfone and sulfoxide. 3. Sulfoxides, easily oxidized to sulfone. Also very polar chemically. 4. Phosphite, easily air oxidized to phosphate (Merphos -> DEF). 5. Vicinal dibromide, easily debrominated (Naled Dichlorvos). 6. Two or more isomers commonly exist (e.g. Demeton-0 and Demeton-S; cis- and trans- mevinphos). 7. Relafively volafile, can be lost if media or vials are left uncapped for even a short period of fime. General: Organophosphorous compounds are easily destroyed at mildly alkaline condifions (pH > 8). Loses can occur for trace levels of compounds on alkaline glass surfaces. Glassware should be neutralized after washing, if alkaline detergent is used. B. DESORPTION AND SOLUTION 1. Solubility of concentrated solufions in toluene enhanced by the addifion of 1% methanol or 10% acetone. Solubility in hexane very unfavorable even for dilute solufions. 2. Changing from 100% toluene to 90/10 toluene/acetone, desorption from glass fiber filters improved from 62% to 98%, desorpfion from quartz fiber filters improved from 30% to 101%. 3. Changing from glass fiber filters to quartz fiber filters, desorpfion in toluene improved from 16% to 88% and desorpfion in 90/10 toluene/acetone improved from 70% to 99%. 4. These compounds are more chemically polar than the other listed organophosphorous compounds; desorpfion from XAD-2 or from glass or quartz fiber filters in hexane was incomplete or non-existent. Desorpfion in toluene was adequate except as noted in 2 and 3 above. The use of toluene containing 10% acetone improved recoveries for all analytes to satisfactory levels. 5. The desorpfion characteristics of these compounds were not evaluated. General: a. The presence of acidic hydrogen or double bonded oxygen anywhere in the molecular structure greafiy decreases solubility in non-polar solvents and increases the difficulty of desorption from polar surfaces and sorbents. b. While glass fiber filters and toluene desorbant were adequate for most compounds in preliminary tests, the method was given wider applicafion for the more polar compounds by the use of quartz fiber filters and 90/10 toluene/acetone desorbant. c. Solvents with lower boiling points (e.g., methylene chloride, chloroform, methyl-t-butyl ether, and ethyl acetate) had good desorption power nearing equivalent to 90/10 toluene acetone, but rendered less satisfactory gas chromatographic responses for the analytes. This effect may be due to better analyte mass-transfer from the injecfion port to the capillary column with higher boiling solvents using splitless or direct injection techniques. C. GAS CHROMATOGRAPHY 1. Poor chromatography may be encountered with dirty or undeactivated columns or injecfion ports. Clean quartz wool plugs stuffed in the injecfion port liner are better than silanized glass wool at reducing losses within the injecfion port. 2. Mulfiple, shifted, irregular, or severely tailing peaks may be observed In the chromatogram if degradation or oxidafion of the analytes occur prior to injection, within the injection port, or during chromatographic separafion on-column. 3. Mulfiple peaks may be observed due to presence of isomers. 4. Short elufion fime, compound may co-elute with solvent if oven temperature is too high. 5. Long elufion time, compound may be lost if run fime is too short, column or injection port is too cool, or split-vent-valve opens too soon when injected in splitless or direct injection mode. 6. Azinphos methyl did not elute from DB-1701 even though /Azinphos ethyl did elute. 7. Potenfial internal standards: Triphenyl phosphate is more favorable if mulfiple analytes are expected because it is less volatile and elutes in an area of the chromatogram having fewer competing analytes. NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 21 of 20 Table 10. Other Methods of Analysis for Organophosphorous Compounds in Air Document Method Number Organophosphorous Compound(s) Hill & Arnold*^' NMAM, 2nd ed, <^' NMAM, 3rd ed. (3) OSHA*" OSHA Stopgap'" Chlorpyrifos, Demeton-0, Demeton-S, Diazinon, Dimethoate, Malathion, Paraoxon, and Parathion V. 1 P&CAM 158 Parathion V. 5 P&CAM 295 Dichlorvos (DDVP) V. 6 P&CAM 336 TEPP V. 3 S208 Tributyl phosphate V. 3 S 209 Triorthocresyl phosphate V. 3 S 210 Triphenyl phosphate V. 6 S280 Demeton V. 3 S285 EPN V. 3 S295 Parathion V. 6 S 296 Mevinphos V. 6 S299 Ronnel V. 3 S 370 Malathion 2503 2504 5012 5514 62 Each method is separate and unnumbered. Refer to by name. Mevinphos TEPP EPN, Malathion, and Parathion Demeton Chlorpyrifos, Diazinon, Parathion, DDVP, and Malathion Azinphos ethyl Azinphos methyl Coumaphos Crufomate Demeton Dicrotophos Dioxathion Disulfoton EPN Ethion Ethoprop Fenamiphos Fensulfothion Fenthion Fonofos Isofenphos Leptophos Methamidophos Methyl dematon Methyl parathion Mevinphos Monocrotophos Oxydemeton methyl Phorate Pirimiphos methyl Sulprofos TEDP (sulfotepp) TEPP Terbufos (1) Hill and Arnold [11] (2) NMAM, 2nd ed. [7] (3) NMAM, 3rd ed. [8] (4) OSHA Analytical Methods Manual [12] (5) OSHA Stopgap Methods [4] NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 22 of 20 Table 11. Preparation of Spiked Media and Liquid Calibration Standards Spiked Concentrafion A. B. C. D. E. Solutions Spiking Levels (Fraction of REL) *^' I. Spiking of Media or Liquid 1/30X 1/IOx 1/3x lx 3x REL REL REL REL REL 1. Spiking Solufion to use: SS-2 SS-2 SS-1 SS-1 SS-1 Dilute this 2. Preferred Syringe Size: 50 pL 50 pL 50 pL 50 pL 100 pL volume (m 3. Spiking Volume *^' to use: 10 pL 30 pL 10 pL 30 pL 90 pL 10 mg/mL Total pg spiked*^' to prepare Total pg spiked*^' of solufion 1. Azinphos methyl 0.8 2.4 8 24 72 0.8 2. Chlorpyrifos 0.8 2.4 8 24 72 0.8 3. Diazinon 0.4 1.2 4 12 36 0.4 4. Dicrotophos 1.0 3 10 30 90 1,0 5. Disulfoton 0.4 1.2 4 12 36 0.4 6. Ethion 1.6 4.8 16 48 144 1.6 7, Ethoprop 0.4 1.2 4 12 36 0.4 8. Fenamiphos 0.4 1.2 4 12 36 0.4 9, Fonofos 0.4 1.2 4 12 36 0.4 10. Malathion*^' 4 12 40 120 360 4.0 11. Methamidophos 0.8 2.4 8 24 72 0.8 12. Methyl parathion 0.8 2.4 8 24 72 0.8 13. Mevinphos 0.4 1.2 4 12 36 0.4 14. Monocrotophos 1.0 3 10 30 90 1.0 15. Parathion 0.2 0.6 2 6 18 0.2 16. Phorate 0.2 0.6 2 6 18 0.2 17. Ronnel*^' 4 12 40 120 360 4.0 18. Sulprofos 4 12 40 120 360 4.0 19. Terbufos 0.4 1.2 4 12 36 0.4 20. General (for 120L) <'''^' x/30 x/10 x/3 x 3x 4y (1) (2) (3) (4) (5) For a collecfion volume of 120 L. Range corresponds to values within column C, Table 8. For liquid calibrafion standard preparations, add specified volume to 2 mL desorpfion solution in 2-mL volumetric flask. For laboratory control samples spiked at the REL, apply volume specified in column D to front secfion of sampler; in duplicate. For Desorpfion Efficiency determinafion, apply specified volume to front section of sampler; do each of five levels in triplicate. Total pg per sample, for spiked media, or per 2 mL desorpfion solufion for liquid calibration standards. Where x, pg/sample = REL, pg/L x 120 L/sample; and y, mg/mL = REL, mg/m ^ x 4 m^/mL. For all REL > 1 mg/m ^, use 1/10 x REL in the calculafions (assumes that collecfion volume in these cases would be 12 L instead of 120 L). NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 23 of 20 NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 24 of 20 6mm 50mm FIGURE 2. OVS-2 SAMPLER 13mn Til . \ \ 1— PTFE Retainer Ring \ '— Quartz Fiber Filter *— 270mg XAD-2 Front Section Polyurethane Foam Plug 140ng XAD-2 Back Section Polyurethane Foam Plug Glass Sampling Tube NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 ORGANOPHOSPHORUS PESTICIDES: METHOD 5600, Issue 1, dated 15 August 1994 - Page 25 of 20 NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94 APPENDIX D SITE SPECIFIC HEALTH AND SAFETY PLAN GeoSoils, Inc. SPECIFIC SITE HEALTH AND SAFETY PLAN FOR PROPOSED GRADING, PROPOSED 17-LOT SUBDIVISION APNS 156-351-03, -07, AND -08, 2373 AND 2375 PIO PICO DRIVE CARLSBAD, SAN DIEGO COUNTY, CALIFORNIA 92010 EMERGENCY NOTIFICATION REFERENCE Emergency Response - Flre/Police/Ambulance 911 Hospital - Tri-City Medical Center (760) 724-8411 Address: 4002 Vista Way, Oceanside, California Directions: Take El Camino Real north. Proceed to Vista Way (under the Highway 78 overpass). Proceed east on West Vista Way then to the entrance of Tri-City Medical Center, on the north side of West Vista Way and Highway 78. Location of the hospital site in the Thomas Guide for San Diego County is page 1107, coordinates Bl. Poison Control Center (619) 543-6000 1-800-876-4766 County of San Diego Department of Health Services Department of Environmental Health Land and Water Quality Division (858) 505-6700 Client Ms. Sarah Morrell (858) 526-6554 (760) 715-1584 Operations Consultant Mr. John Franklin, GeoSoils, Inc (760) 438-3155 (760) 250-5835 Standard Procedure for Reporting Emergencies Provide the following information when calling for assistance in an emergency situation: 1. Name, phone number, and location of person making call 2. Number of persons exposed or injured 3. Nature of emergency 4. Actions already taken 5. Remain on the phone unless instructed otherwise. GeoSoils, Inc. INTRODUCTION This Community Health and Safety Plan (CHSP) has been developed specifically for the assessment activities including the excavation of elevated levels of pesticide in soil, to be performed on 2373 and 2375 Pio Pico Drive, in Carlsbad, San Diego County, California. It addresses potential public health concerns and provides guidelines to reduce the potential for exposures and/or injuries to the surrounding public from the activities to be performed at the subject site. This H&S Plan is designed to be specific with regard to the proposed onsite activities and the potential for encounters with hazardous materials and hazardous situations. However, due to potential variations of anticipated conditions at the site, it should be noted that unforeseen situations could arise during the performance of the environmental services that would necessitate a deviation from this CHSP. Thus, provisions will be made to allow modifications to the CHSP when appropriate. SITE LOCATION The subject site consists of three relatively vacant parcels, and a single story residential building, totaling about 5.4 Acres, located west of Pio Pico Drive and east ofthe Interstate 5 freeway in Carlsbad, San Diego County, California (see Figure 1, Site Location Map). The site is bounded by existing residential development and Pio Pico Drive to the east, by the Interstate 5 freeway to the west, and by existing residential development to the remaining quadrants. POTENTIAL ENVIRONMENTAL EFFECTS Potential chemical, physical, and operational hazards identified by GSI and described in this document are not anticipated to cause any unsafe or unhealthy environmental effects. Should conditions be encountered that require protective measures other than those outlined forthis project, onsite activities will be suspended or modified until the appropriate control methods can be implemented. LIMITED PUBLIC NOTIFICATION The limited public notification program will consist of informing affected entities, as identified by representatives ofthe consultant and the client, ofthe dates and nature ofthe proposed activities. Specific Site Health and Safety Plan . W.O. E6649.1-SC File:e:\wp12\env\e6600\e6649,1.pmp GcoSoilS, InC. Page 2 Base Map: TOPO!® ©2003 National Geographic, U.S.G.S San Luis Rey Quadrangle, Califomia ~ San Diego Co., 7.5 Minute, dated 1997, cunrent, 1999. SITE a«in;„ Nuartni v Base Map: Google Maps, Copyright 2014 Google, Map Data Copyright 2014 Google '9 NOT TO SCALE This map Is copyrtgMed by Google 2014. tt Is unlawful to copy or reproduce all or any part tharaof, u/twOiar for parsonal use or resale, without permission. AH rights reserved. N W.O. E6649-SC SITE LOCATION MAP Figure 1 OVERVIEW OF POTENTIAL HAZARDS Toxaphene is the contaminant of concern at the site. Potential chemical, physical, and operational hazards identified by the consultant and described in this document are not anticipated to cause any unsafe or unhealthy environmental effects to the public. The public will be excluded from the area of the soil removal activities. Symptoms of overexposure to soil affected by toxaphene usually occur after a lengthy exposure. The concentrations required to produce the symptoms of an overexposure generally depend upon the type of exposure (ingestion, inhalation, or skin contact), the duration of each exposure and/or number of exposures, and the concentration. Routes of Exposure Inhalation, ingestion, skin absorption, and skin and/or eye contact. Symptoms Symptoms of overexposure may include but are not limited to eye, nose and respiratory system irritation, giddiness, headache, nausea, staggered gait (walking style), fatigue, anorexia (loss of appetite), lassitude (weakness, exhaustion), dermatitis (inflammation of the skin), bone marrow depression (blood cell production depression), and abdominal pain. Hazard Control There will be no eating, drinking, or smoking during remedial grading ofthe contaminated soils. During grading operations, personal protection (i.e., clothing) is not required, unless contaminated soils are being handled by individuals. Based upon previous laboratory test results and the chemical nature of subject agricultural residues, contamination onsite appears to be non-volatile; nonetheless, air monitoring is proposed. Other hazards/annoyances that could develop during the field operations include noise created by the operation of heavy equipment, such as a scraper, dozer, backhoe, or track hoe, and the chance of fire or explosion. The potential for the presence of explosive vapors or a fire from these soil excavation activities is considered minimal. Fire protection shall be provided by at least a 20-pound ABC-type portable fire extinguisher readily available to trained personnel onsite, and located within 10 feet of spark-producing operations. Personnel shall also be familiar with the procedures for summoning emergency assistance from the fire department. Smoking, open flames, or other ignition sources will not be permitted within 25 feet ofthe work area. Noise hazards are often created around large equipment (e.g., scrapers, dozers, backhoes and drill rigs) that generate excessive noise. The effects of noise can include: personnel Specific Site Health and Safety Plan . W.O. E6649.1-SC File:e:\wp12\env\e6600\e6649.1,pmp GcoSoilS, InC. Page 4 being startled, annoyed, or distracted; physical damage to the ear, pain, and temporary or permanent hearing loss; communication interference that may cause increased potential hazards due to the inability to warn of danger and proper safety precautions to be taken. Despite the identification of these potential hazards, it is not anticipated that noise levels will exceed existing safety standards. The operational safety hazards that could exist on the site including being hit by equipment, falling objects, falling in holes or ditches, and slippery surfaces. Heavy power equipment shall be operated by experienced and certified (where applicable) operators and shall be located and operated in a safe manner. When heavy equipment is moved on or off the site, a spotter shall assist the driver in watching for and locating above ground obstacles, pedestrian traffic, vehicular traffic, and other hazards. SITE OPERATING PROCEDURES Procedures for the conduct of site visitors during the performance of the soil removal/remedial excavation and associated activities at Rancho Costera have been established to reduce the possibility of injury resulting from exposures to the hazards of concern. These procedures require the cooperation of all onsite personnel and visitors during the project and will be strictly enforced by the Site Manager/Safety Officer. No one shall be allowed to enter the site without the required authorization from either Mr. Darius Fatakia, Project Manager, or the consultant (GSI). Onsite personnel and visitors will also be required to check in with the Site Manager/Safety Officer when entering the site and check out when leaving the site. EMERGENCY RESPONSE/PLANNING Prior to beginning field activities, the Project Manager and the Site Manager/Safety Officer shall plan emergency procedures. Initial planning includes establishing an alarm system (e.g., horn) and the best means for evacuation from work areas in the event of a catastrophic event (e.g., explosion, fire, etc.). Onsite personnel shall also be informed of the location of the telephones and other communication devices located onsite. Specific Site Health and Safety Plan , W.O. E6649,1-SC File:e:\wp12\env\e6600\e6649.1,pmp GcoSoilS, InC. Page 5