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Home My WebLink AboutSLOUNIFLOW_FS1 Admin iRC3926i Color_2490_001il;4325 Higuera Street, San Luis Obispo, CA, 93401 Re: Facility Environmental Emergency Plan PG&E San Luis Obispo Service Center 2 4325 Higuera St.- San Luis Obispo, CA 93401 August 25, 1999 Mr. Spencer Meyer City of San Luis Obispo Fire Dept 2160 Santa Barbara Ave. San Luis Obispo, CA 93401-5240 Dear Mr. Meyer: ln compliance with section PG&E has reviewed its Facil MIKE KOONTZ Distribution Superviso Enclosures E>\4 ,, I qa-.( BT Safety Code, ) for San Luis 66eh "Obispo Service Center and ent has' prepared in compliance with PART 265, SARA Title lll, 4'82185, A83777,and 22. A copy of this plan has been encies (Fire Department, Police 66265.53. The California Hazardous Material California Code of Regulation are also attached. 2731) required by Business Plans) ln addition, we would like to you e opportunity to visit our facility to familiarize yourself with the site and the contents of this plan. lf there are any questions regarding the enclosed, please contact me at (805) 546-5249 Thank you for your continued cooperation. Sincerely, i. .r i. ,t9r. ( ;:], ,'fu kru'" \,1 ri: l:! "" J ? t[4325 Higuera Street, San Luis Obispo, CA,93401 August25,1999 Mr. Spencer Meyer City of San Luis Obispo Fire Dept. 2160 Santa Barbara Ave. San Luis Obispo, CA 93401-5240 MIKE KOONTZ Distribution Su OL1"+ o f qa,e BP Re: Facility Environmental Emergency Plan PG&E San Luis Obispo Service Center 2 4g2S Higuera St./ San Luis Obispo, CA 93401 Dear Mr. Meyer: ln compliance with section 25505(c) and (d) of the California Health and Safety Code, PG&E has reviewed its Facility Environmental Emergency Plan (FEEP) for San Luis Obispo Service Center and made the necessary changes. This document nas 6een ' prepared in compliance with planning requirements described in 40 CFR PART 265, SARA Title lll, 482185, A83777, and California Code of Regulations Titles 19 and 22. '// i A copy of this plan has been issued to all local emergency assidtance agencies (Fire Department, Police Department and Hospital) in accordance with 22CCR 66265.53. The California Hazardous Materials lnventory Forms (OES Forms 2730 and 2731) required by California Code of Regulations Title 19, Article 4 (Minimum Standards for Business Plans) are also attached. ln addition, we would like to offer you the opportunity to visit our facility to familiarize yourself with the site and the contents of this plan. lf there are any questions regarding the enclosed, please contact me at (805) 546-5249 Thank you for your continued cooperation. Sincerely, It. :j, i. tl ^'fu/ I r rl:L Vo{ - '\ 1. { i: ir . .i:i' 'iI t rTi,l ! ,.fi i^,; Enclosures Water Boards Eof,ruND (i. ElFowN.rR. sV Marrevr RooRtougz cilvlnoNllEff rAl PFof gcTrots Central Goast Regional Water Quality Gontrol Board January 14,2015 Mr. Rik Williams Chevron Environmental Management Company P. O. Box 1332 276fank Farm Road San Luis Obispo, CA 93401 RikWi lliams@chevron. com Dear Mr. Williams S|TE CLEANUP PROGRAM: UNOCAL OLD PIPELINE NO. 2,4325 sAN LU|S OB|SPO, SAN LU|S OBtSpO - CASE CLOSUBE,/ / HIGUERA STREET, This letter confirms the completion of site investigation for the Site Cleanup Program case located at the above-described location. Thank you for your cooperation throughout this investigation. Your willingness and promptness in responding to our inquiries concerning your property are greatly appreciated. Based on the available information in the above-referenced file, and with the provision that the information provided to this agency was accurate and representative of site conditions, no further action related to this case is required. Residual soil and groundwater pollution still exists beneath the site, primarily in the public road right of way, that could pose an unacceptable risk under certain site development conditions, such as site grading, excavation or de-watering. To ensure proper handling of site soil and groundwater, a Soil and Groundwater Management Plan has been posted to the State Water Resources Control Board's GeoTracker website at: https://qeotracker.waterboards.ca.qov/requlators/deliverable documents/2689900040/432 0 %20 S o u th o/o 2 0 H io u er ao/"21Oldo/"2o line%20SGMP%20Final.odf The Central Coast Water Board, San Luis Obispo County Environmental Health Services, and the appropriate local planning and buibing departments must be notified prior to any changes in land use, grading activities, excavation, or dewatering. This notification must include a statement that residual pollution underlies the site. The levels of residual pollution and any associated risks are expected to reduce with time. 995 Aerovi&la Flace, Suito '|01, San Luis Obispo, CA 93d01 | www.satorboards,ca,govlcentralcoast l-lri. Jt,lll-Prt,u*r, Woi t t, r;xarn I Kr-rvur-.nr A. l-laxnrs JH,, ExEcurrvr rrFtcER {l nr,:"cr co nrrc* Mr. Rik Williams -2-January 14,2015 Please contact Alison Jones at (S05) 5424646 or aiones@waterboards.ca.qov or John Robertson at (805) 542-4630 if you have any questions Sincerely, A I i so n J o n es if*-"*t##j-::,lin*:lr":="* for Kenneth A. Harris Executive Officer Attachment: Case Closure Summary cc: Mr. Eric Snelling, Padre Associates esnellinq@PADRE I NC.com Mr. Hal Hannula, City of San Luis Obispo public Works hhannula@slocitv.oro Mr. Joseph Lease, city of san Luis obispo public works Departmentilease@slocitv.org , i, Mr' Aaron LaBarre, County of San Luis Obispo EnvironmJntal Health $ervices alabarre@co. slo. ca. us Mr. Kerry Boyle, City of San Luis Obispo Fire Department kbovle@slocitv.oro TI Pacilic 6as and Etecfric Gampany , Environmental Renrediatiorr -l,iL l' : it,!,, i-..r, !, 't ;.:i,i,; :';, i i:: r' : i'j i .lttlrl April22,201A Corey Walsh California Regional Water Quality Control Board Central Coast Region 895 Aerovista Place, Suite 101 San Luis Obispo, California 93401 Subject: Transmittal of Underground Storage Tank lnvestigation Repoft, Pacific Gas and Electric Company, San Luis Obispa Serurce Center, 4325 S. Higuera Street, San Luis Obispo, California Dear Mr. Walsh Attached isthe Underground Storage Tank lnvestigation Report, Pacific Gas and Electric Company, San Luis Obispo Service Center, 4325 S. Higuera Sfreel San Luis Obispo, California prepared by Stantec Consulting Corporation and dated April.22,2010. The report presents the results of a subsurface investigation that was conducted in the vicinity of the former underground storage tanks at the PG&E San Luis Obispo Service Center. / t Based on the results of this investigation, no further rorf "pp""J" necessary tor. ttri" site at this time. PG&E requests your review and written approval of this report. Please contact me at925.415.6371 or r4sw@pge.com if you have any questions Sincerely, wl^ Robert Saur, PG Remediation Project Manager I cc: d"rry Boyle, City of San Luis Obispo Fire Department 1 I I I Underground Storage Tank lnvestigation Report Pacific Gas and Electric Company San Luis Obispo Service Genter 4325 S. Higuera Street, San Luis Obispo, California PN: 185702213 Stantec J J J J April26,2010 Stantec UNDERGROUND STORAGE TANK INVEST]GATION REPORT PACIFIC GAS AND ELECTRIC COMPANY Limitations and Certifications April26,2010 Limitations and Gertifications This report was prepared in accordance with the scope of work outlined in Stantec Consulting Corporation (Stantec) contract and with generally accepted professional engineering and environmental consulting practices existing at the time this report was prepared and applicable to the location of ihe site. It was prepared for the exclusive use of Pacific Gas and Electric Company. Any re-use of this report by others not identified above shall be at the user's sole risk without liability to Stantec. To the extent that this report is based on information provided to Stantec by third parties, Stantec may have made efforts to verify this third party information, but Stantec cannot guarantee the completeness or accuracy of this information. The opinions expressed and data collected are based on the conditions of the site existing at the time of the field investigation. No other warranties, expressed or implied are made by Stantec. Prepared and Reviewed by: Bill DeBoer Geologic Project Special ist lnformation, conclusions, and recommendations provided by Stantec in this document has been prepared under the supervision of and reviewed by the licensed professional whose signature appears below. Licensed Approver: ruce E. Scarbroug G., #4931 Principal Geologist .J BRT,C€ SCARBROUE*I h&o.4931 lof rt tre i:\pg&e\ust project group b sites\reports\$n lurs obispo\rpt_san luis obrspo-fnl.doc L-1 Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY Table of Contents April 26, 2010 Table of Gontents 1.0 TNTRODUGTION ....... 1-1 1.1 S|TE DESCRTPTION ....^..,.....,.... 1-1 1.2 OBJECTIVE OF THE INVESTIGATION .......,.., 1-1 1.3 WELL SEARCH ......... 1-1 1.4 |NVESTTGATION APPROACH.............. ......1-2 2.0 2.1 2.2 2.3 2.4 FIELD AND LABORATORY METHODS AND PROCEDURES.. PRE-FIELD PREPARATION...,..... 2.1.1 Permits..... 2.1.2 Health and Safety P|an.......... 2.1.3 UndergroundUtilityClearance EXPLORATORY SOIL BORINGS. 2.2.1 Electrical Conductivity (EC) Profiles 2.2.2 Membrane lnterface Probe (MlP) Profiles GROUNDWATER SAMPLING AND ANALYSIS ........ 2.3.1 Groundwater Sampling and Analysis.... BOREHOLE ABANDONMENT AND WASTE MANAGEMENT ...........2-1 ...........2-1 ...........2-1 ...........2-1 ...........2-1 ...........2-1 ...........2-2 ...........2-2 ...........2-2 ...........2-2 ...........2-3 3.0 RESULTS.......... 3.1 SUBSURFACE STRATIGRAPHY AND GROUNDWATER OCCURANCE 3.2 MIP PROFILE RESULTS. 3.3 ANALYTICAL RESULTS. 3.3.1 Quality Assurance and Control Review 4.0 DISCUSSION OF RESULTS AND RECOMMENDATIONS 3-1 3-1 3-1 3-1 3-2 4-1 lms rlpg&e\usl project group b sitesveports\san luis oblspovpt_san lurs obispo_fnl.doc I I Stant€c UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY List of Attachments April26,2010 List of Attachments Table 1 Table2 Figure 1 Figure 2 Appendix A Appendix B Appendix C Appendix D LIST OF TABLES Groundwater Sampling and Analysis Summary Summary of Groundwater Analytical Results LIST OF FIGURES Site Location Map Site Map with Boring Locations I J I J J J J Note: Tables and Figures appear at end of report. LIST OF APPENDICES EDR Well Search Boring Permit EC/MlP Logs Laboratory Analytical Results and Chain-of-Custody Record IItm ilpg&e\ust project group b sitesveports\san luis obispovpt-san luis obispo-fnl.doc Stantee UNDERGROUND STC,RAGE TANK INVESTIGATION RE PACIFIC GAS AND ELECTRIC COMPANY lntroduction Aprll 26, 2010 1.0 lntroduction This Underground Storage Tank (UST) lnvestigation Repr Company (PG&E) and presents the results of a subsurfac former gasoline and diesel USTs at the PG&E San Luis ( Higuera Street in San Luis Obispo, California (the Site; F 1.1 SITE DESCRIPTION The PG&E San Luis Obispo SC is an active facility that provides materials and equipment for electric and gas operations. The Site is an asphalt paved facility located in a mixed industrial and residential area of San Luis Obispo and is comprised of an operations building, fleet services building, various office buildings, a wash rack, a 280-gallon waste oil UST, a 2,000-gallon bio-diesel AST, and two SOO-gallon gasoline ASTs (Figure 2). PG&E historically operated USTs at the Site, including a 4,000-gallon gasoli4e UST installed in 1957, a 6,000-gallon diesel UST installed in '1984, and a S5O-gallon waste oil UST installed in 1988. The gasoline and diesel USTs were removed in 1996 and replaced with the current AST configuration mentioned above. During UST removal, grab groundwater samples were collected from the UST excavation pit and analyzed for total petroleum hydrocarbons as gasoline (TPHg), TPH as diesel (TPHd), and benzene, toluene, ethylbenzene, and xylenes (BTEX). BTEX constituents were detected one groundwater sample at concentrations ranging from 0.7 to 3.2 micrograms per liter (pg/L). The UST removal activities and sampling results were documented in a letter report prepared by Cuesta Geotechnical dated March 25, 1996. ln a letter to PG&E dated March 29, 1996, the San Luis Obispo Environmental Health Department approved the UST closure and required no further action. 1.2 OBJECTIVE OF THE INVESTIGATION The primary objective of this investigation was to assess whether an historical release from the former USTs could have the potential to impact drinking water supply wells located near the Site. Of particular interest were methyl tertiary-butyl ether (MTBE) and other fuel additives, which were not tested foi'during tank removal activities. 1.3 WELL SEARGH A search of commercially available databases was conducted to identify water wells within a one-mile radius of the Site. Stantec contracted with Environmental Data Resources, lnc. (EDR) to conduct the database search and provide a map and listing of wells within a 1-mile search radius from the Site. The EDR report is included in Appendix A. I*_k+ \s l---\:f \ s -F'*< €. ,a-}- =\ NS I I I , i I \*Jh\.a J i tins r \)g&e\usl pro]ecl qroup b srtes\reports\$n lurs obrspo\rpl-san lurs oblspo fnl.doc 1-1 Stantec uNDERGRouruo srcinAcE TANK TNVESTtcATtoN REpoRT PACIFIC GAS AND ELECTRIC COMPANY lntroduction April26,2010 1.0 lntroduction This Underground Storage Tank (UST) lnvestigation Report was prepared for Pacific Gas and Electric Company (PG&E) and presents the results of a subsurface investigation conducted in the vicinity of former gasoline and diesel USTs at the PG&E San Luis Obispo Service Center (SC) located at 4325 S Higuera Street in San Luis Obispo, Galifornia (the Site; Figurel). 1.1 SITE DESCRIPTION The PG&E San Luis Obispo SC is an active facility that provides materials and equipment for electric and gas operations. The Site is an asphalt paved facility located in a rnixed industrial and residential area of San Luis Obispo and is comprised of an operations building, fleet services building, various office buildings, a wash rack, a 280-gallon waste oil UST, a 2,00O-gallon bio-diesel AST, and two SOO-gallon gasoline ASTs (Figure 2). PG&E historically operated USTs at the Site, including a +,OOO-/gatton gasolin6 UST installed in '1957, a 6,000-gallon diesel UST installed in 1984, and a S5O-gallon waste oil UST installed in '1988. The gasoline and diesel USTs were removed in 1996 and replaced with the current AST configuration mentioned above. During UST removal, grab groundwater samples were collected from the UST excavation pit and analyzed for total petroleum hydrocarbons as gasoline (TPHg), TPH as diesel (TPHd), and benzene, toluene, ethylbenzene, and xylenes (BTEX). BTEX constituents were detected one groundwater sample at concentrations ranging from 0.7 lo 3.2 micrograms per liter (pg/L). The UST removal activities and sampling results were documented in a letter report prepared by Cuesta Geotechnical dated March 25, 1996. ln a letter to PG&E dated March 29, 1996, the San Luis Obispo Environmental Health Department approved the UST closure and required no further action. 1.2 OBJECTIVE OF THE INVESTIGATION The primary objective of this investigation was to assess whether an historical release from the former USTs could have the potential to impact drinking water supply wells located near the Site. Of particular interest were methyl tertiary-butyl ether (MTBE) and other fuel additives, which were not tested for during tank removal activities. 1.3 WELL SEARGH A search of commercially available databases was conducted to identify water wells within a one-mile radius of the Site. Stantec contracted with Environmental Data Resources, lnc. (EDR) to conduct the database search and provide a map and listing of wells within a 1-mile search radius from the Site. The EDR report is included in Appendix A. tm i:\pg&e\ust project group b sitesveports\san luis obispo\rplsan Iuis obispo-_fnl.doc 1-1 Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY lntroduction April26,2010 Nine water wells were identified within the 1-mile search radius. A search radius map illustrating the well locations relative to the Site and a listing of available well information are included in Appendix A. Two wells were identified with %-mile of the Site and are listed below. tl An historic water supply well used by the San Luis Obispo SC is located in the northeast corner of the property. This well was taken out of service approximately 10 to 12 years ago when the Site was incorporated into City limits and connected to City water supply systems. The water collection tank and associated piping were removed at that time and the well is no longer in use; and, tr An unused well is located in the northwest corner of the property, along the northern property boundary. The owner of this well is unknown and its' purposes unclear. This well was not on the EDR list, but was confirmed by site personnel. 1.4 INVESTIGATIONAPPROAGH To meet the investigation objectives, Stantec developed and conducted a targeted subsurface investigation consisting of the following elements: tr Advanced soil borings around the former USTs location using a GeoProbe@ direct-push rig equipped with a downhole soil conductivity (EC) sensor and membrane interface probe (MlP) to evaluate subsurface lithology and qualitatively screen for the presence of volatile organic compounds (VOCs) in subsurface media, and, fl Collected and analyzed depth-specific groundwater samples for the presence of petroleum hydrocarbons and VOCs, including MTBE and other fuel oxygenates. tms r:\pg&e\ust proJect group b sites\reports\san lurs obrspovpl-san luis obispo-fnl.doc 1-2 Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY Field and Laboratory Methods and Procedures April26,2010 2.0 Field and Laboratory Methods and Procedures This section describes the field and laboratory methods and procedures employed during the investigation. 2.1 PRE.FIELD PREPARATION 2.1.1 Permits A permit was obtained from the San Luis Obispo County Environmental Health Department (County) to advance the soil borings at the Site. A copy of the County permit is included in Appendix B. 2.1.2 Health and Safety Plan A site-specific Health and Safety Plan (HASP) was prepared to address potential chemical and physical hazards associated with the proposed investigation activities. A copy of the HASP was kept on-site at all times while work was occurring. 2.1.3 Underground UtilityGlearance The proposed soil boring locations were marked in the field and Stantec contacted Underground Service Alert (USA) to identify buried utilities prior to beginning intrusive field work. ln addition, Stantec contracted a private underground utility locator (Cruz Brothers) to identify potential subsurface obstructions and underground utilities at the proposed boring locations. 2.2 EXPLORATORY SOIL BORINGS On March 29 and 30, 2010, Stantec contracted with Vironex to advance four direct-push exploratory soil borings (SLO-1 through SLO-4) around the former USTs and fuel island at the locations shown on Figure 2. All work was performed under the direct supervision of a Stantec geologist. At each location, the upper 5 feet were advanced using a hand auger to verify the absence of buried utiliiies. Vironex then used a GeoProbe@ 6600 rig io advance ihe ECIMlP probe to qualitatively screen the subsurface for the presence of VOCs. The exploratory soil borings were advanced to a maximum depth of 39.55 feet below ground surface (ft-bgs; Table 1), Copies of the EC/MIP logs are included in Appendix C. tms rlpg&e\usl prolect group b sitesveports\sn lurs obispovpt_san luis obispo fnl.doc 2-1 Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIG COMPANY Field and Laboratory Methods and Procedures April26,2010 ) 2.2.1 ElectricalGonductivity(EC)Profiles The EC sensor provides a real-time continuous measurement of soil conductivity. Soil conductivity is the ability of the soil to transmit electrical current. Geologic materials exhibit varying conductivities based on mineralogy and particle size. Electrical conductivity is generally inversely proportional to particle size. That is, silts and clays typically exhibit higher conductivity values than sands and gravels. Thus, electrical conductivity measurements yield lithologic information that is useful in differentiating permeable zones (e.9., sand and gravels) from less-permeable clay and silt-rich zones. 2.2.2 Membrane Interface Probe (MlP) Profiles The MIP is a real-time sensor that qualitatively screens for the presence of VOCs in the subsurface. VOCs present in the subsurface permeate across a heated permeable membrane and an inert carrier gas then sweeps the back side of the membrane carrying the VOCs to the surface where they are analyzed in a mobile laboratory equipped with gas chromatography detectors. The MIP gas chromatography detectors include a flame-ionization detector (FlD), a photo-ionization detector (PlD), and an electron capture detector (ECD). The FID is sensitive to a wide range of straight chain hydrocarbons, including methane. The PID is more sensitive to double bond hydrocarbons and aromatic VOCs, including BTEX. The ECD typically detects chlorinated hydrocarbons. The MIP and GC chromatography equipment used for this investigation does not provide chemical speciation or media- specific concentration data, but is an excellent screening level tool for identifying the presence of VOCs in subsurface media (soil, groundwater, and soil gas). 2.3 GROUNDWATER SAMPLING AND ANALYSIS Once the exploratory borings were advanced to total depth and the ECIMlP logs reviewed, grab groundwater samples were collected for chemical analysis as described below. A summary of the groundwater sampling conducted is provided in Table 1. 2.3.1 Groundwater Sampling and Analysis On March 30 and 31,2010, grab groundwater sampling was attempted at all four locations. Samples were successfully coilected from three of these locations and submitted to the laboratory for chemical analysis. Prior to sample collection, the MIP log was reviewed to identify coarser-grained units for groundwater sampling and identify zones potentially impacted by VOCs. Groundwater samples were collected from depths of 15 and 20 ft-bgs. Groundwater sampling was first attempted using a Hydropunch@ groundwater sampling tool with a sacrificial steel tip. Several attempts using this method in both shallow and deep intervals failed to produce sufficient groundwater volume for collection. As a result, temporary wells were installed at each location by advancing the MacroCore@ sampling tool to 15 or 2A ft-bgs and installing 3/o-inch tms i:\pg&e\usl project group b sites\reporls\san luis obispovpt_.san lurs obrspo-fnl.doc z-z Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY Field and Laboratory Methods and Procedures April26, 2010 polyvinyl chloride (PVC) casing in the open borehole. Groundwater was allowed to flow into these wells over several hours until sufficient volume had accumulated and samples were collected using a peristaltic pump with new, clean tubing. Table 1 displays the sampling intervals attempted and the method used for each. The groundwater samples were transferred directly from the tubing into laboratory-supplied sample containers. Care was taken when transferring the water from the bailer to the containers to avoid turbulence as much as possible. Sample containers were labeled and immediately placed in a cooler containing ice. A completed chain-of-custody (COC) form accompanied all samples submitted to the analytical laboratory. Groundwater samples were submitted to Calscience and analyzed for TPHg, TPHd, and VOCs, including MTBE and other fuel oxygenates by U.S. Environmental Protection Agency (US EPA) Methods 8015M and 82608. 2.4 BOREHOLE ABANDONMENT AND WASTE MANAGEMENT ln accordance with the County requirements, following completion of all drilling and sampling activities, boreholes were backfilled with Type l-ll cement grout, placed from total depth to ground surface with a tremie pipe. The borings were completed at ground surface to match existing surface conditions. Alldecontamination fluids and soilcuttings generated during the investigation were stored in sealed 10- gallon drums and labeled with the generation date and nature of contents. Disposal of the investigation- derived wastes will be conducted by PG&E in accordance with federal, state, and local regulations. tms ilpg&e\usl prolect group b sitesveports\so luis obispo\rpt-san luis obispo-fnl.doc z-5 Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY Results April26,2O10 3.0 Results 3.1 SUBSURFACE STRATIGRAPHY AND GROUNDWATER OCCURANCE Based on the EC logs, the area of investigation is underlain by soils interpreted as an interbedded heterogeneous sequence of sands, silty sands, silts, and clays of varying thickness. Soil layers greater than a few feet thick exhibiting conductivity values of less than 50 milli-Siemens per meter or mS/M (interpreted to be composed predominantly of sand) were encountered within the upper 40 ft-bgs in all borings. These sand layers are interbedded with layers characterized by higher conductivity values (greater than 50 mS/M) and interpreted to be finer-grained sediments (silts and clays). Groundwater was encountered and groundwater samples were collected within the upper 20 ft-bgs at boring locations SLO-1, SLO-2, and SLO-4. Groundwater sampling was attempted in SLO-3 within the upper 17.5 ft-bgs and in SLO-2 at 20 to 24 ft-bgs and 32 to 36 ft-bgs, but free-draining groundwater was not encountered within these intervals. 3.2 MIP PROFILE RESULTS The MIP sensors (FlD and PID) indicated possible low levelVOC impacts at boring SLO-2 from 1O to 1B ft-bgs. All other MIP borings showed no evidence of volatile fuel hydrocarbon impacts to the subsurface 3.3 ANALYTICAL RESULTS Groundwater analytical results are summarized on Table 2. Results were compared to the Maximum Gontaminant Levels or MCLs established for drinking water by the California Department of Public Health (CDPH), which are enforceable regulatory drinking water standards. There are two types of MCLs, primary and secondary. Secondary MCLs are established for aesthetic reasons such as taste, odor or color, and are not health-based standards. Primary MCLs are health-protective standards that must be met by public water systems. Groundwater data were screened against primary MCLs. For chemicals lacking an MCL, the CDPH Drinking Water Notification Level or DWNL (formerly referred to as "action levels") was used for comparison. Notification levels are health-based advisory levels established by CDPH for chemicals in drinking water that lack MCLs. For comparison purposes, MCLs and DWNLs are included on Table 2. Complete laboratory analytical reports and COC records are provided in Appendix D. A total of three grab groundwater samples were chemically analyzed during this investigation. TPHd was detected above the laboratory reporting limit in all three samples at concentrations ranging from 150 to 220 VglL. At Stantec's request, the laboratory re-analyzed the samples for TPHd after subjecting the samples to a silica gel pretreatment procedure (EPA Method 3630C). This procedure uses silica gel to remove non-petroleum organic matter (polar constituents) prior to analysis. Re-analysis following the silica gel cleanup revealed no detectable TPHd in all three samples, indicating the low level positive lms i:\pg&e\ust project group b sites\reporls\san luis obispo\rpt-san luis obispo-fnl.doc 3-1 l I Stantec U N DERGROU N D STORAGE TAN K INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY Results April26, 2010 results in the initial analysis is likely related to the presence of non-petroleum related organic matter within the C10 to C4O range. Toluene and MTBE were detected in the groundwater sample from boring SLO-2 at concentrations of 1.3 pg/L and 1.2 pg/L, respectively. No other petroleum hydrocarbons or fuel constituents were detected in any of the samples. 3.3.1 Quality Assurance and Control Review Field- and laboratory-based quality assurance/quality control (OAJOC) measures were implemented during this investigation to ensure that the data are valid and are of adequate quality for their intended purpose. Field QA/QC samples included a trip blank sample. A blind duplicate sample was not collected due to insufficient water volume in the boreholes. All downhole sampling equipment was thoroughly decontaminated between sampling locations to minimize potential cross-contamination. Laboratory QA/QC measures were consistent with those required by the analytical methods and included matrix spike/matrix spike duplicate samples, method blanks, surrogate spikes, and laboratory control samples. No target analytes were detected in the trip blank sample. Based on Stantec's review of the field and laboratory QA/OC results, the data collected during this investigation are considered valid and useable for their intended purpose. lms r:\pg&e\ust project group b sites\reports\sn luis obispo\rpl-san lurs obispo-fnl doc 3-2 Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY Discussion of Results and Recommendations April26,2010 l J 4.0 Discussion of Results and Recommendations MIP results revealed evidence of low level volatile fuel hydrocarbon impacts to the subsurface at a single MIP boring location advanced around the former USTs. Laboratory testing results for groundwater samples revealed only minor concentrations of toluene and MTBE in a single groundwater sample. Concentrations reported in the sample were below their respective MCLs. Results of this investigation are consistent with data collected at the time of UST removal in 1996. Based on current investigation findings and the previous source removal and investigation findings, Stantec concludes that that no significant leakage from the former USTs occurred. Minor residual fuel hydrocarbons in shallow groundwater are localized, at concentrations below drinking water standards, and do not pose a threat to surrounding water supply wells. Accordingly, no further investigation appears necessary at this time. lms ilpg&e\ust project group b srtes\reports\sn luis obispovpl_san lurs obispo fnl.doc 4-1 I I Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY I TI\BLES Underground Storage Tank lnvestigation Report PG&E San Luis Obispo SC San Luis Obispo, California PN: 1857021223 April 26, 2010 J J J Table 1 Groundwater Sampling and Analysis Summary PG&E San Luis Obispo SC, 4325 S. Higuera Street, San Luis Obispo, California Analysis TPHg, TPHd, VOCs TPHg, TPHd, VOCs TPHg, TPHd, VOCs Groundwater Sample slo-1-15 slo-1-15 (drv) (dry) (drv) sLo-4-20 Sampling Method Temporary well Temporarywell Hydropunch Hydropunch Temporary well Temporarywell Sample lnterval (ft bss) 0-1 5 0-1 5 20-24 32-36 0-17.5 0-20 Total Depth of Boring (ft bgs) 38.1 39.55 19.9 23.05 Boring lD SLO-1 SLO-2 SLO.3 SLO-4 Nofes ft bgs - feet below ground surface TPHg - total petroleum hydrocarbons as gasoline (EPA method 80158) TPHd - total petroleum hydrocarbons as diesel (EPA method 80158) VOCs - volatile organic compounds (EPA method 82608) Page 1 of 1 Notes gg/L - micrograms per liter ft bgs - feet below ground surface ND - not detected, various reporting limits <50 - chemical not detected above the indicated laboratory reporting limit EPA - Environmental Protection Agency VOCs - volatile organic compounds MTBE - methylt-butyl ether TPH-g - total petroleum hydrocarbons as gasoline TPH-d - total petroleum hydrocarbons as diesel Bolded values exceed reporting Iimit Primary MCL - Primary Maximum Contaminant Level as established in 22 CCRS64431 NE - not established . - Sample re-anallzed for TPHd after silica gel clean-up, resultant shown as second number Table 2 Summary of Groundwater Analytical Results PG&E San Luis Obispo Service Genter 4325 S. Higuera Street, San Luis Obispo, California EPA Method 82608 Other Oxygenates ND ND ND ND Other VOCs ND ND ND ND MTBE <1.0 1.2 <1.0 <1 0 13 Total Xylenes <1.0 <1.0 <1.0 <1 0 1,750 Ethylbenzene <1.0 <'1 .0 <'1.0 <1.0 300 Toluene <'1.0 1.3 <1.0 <1.0 150 Benzene <0.50 <0.50 <0.50 <0.50 1.0 TPH.d I 60/<50. 1 50/<50. 220t<50* NE TPH-g <50 <50 <50 NE Sample Depth (ft bssl tc 15 )n Drinking Water Standards; Primary MCL Sample Data 3t31t2010 3t34t2010 3t30t2010 SampblD sLo-1-15 slo-2-15 sLo-4-20 TRIP BLANK Boring lD SLO-1 SLO-2 SLO-4 Page 1 of 1 I I Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY FIGURES Underground Storage Tank lnvestigation Report PG&E San Luis Obispo SC San Luis Obispo, California PN: 1857021223 April 26, 2010 I J l .l ,.l 'I l SITE LOGATION 6 rt 1n 0 1 000 0 1 000 2000 SCALE IN MILE 3000 4000 5000 6000 7000 CALIFORNIA SCALE ll.l FEET of the U.S. Geological Su and Microsofl TerraService OpenclS Map Server FIGURE: 1 PACIFIC GAS AND ELECTRIC COMPANY SAN LUIS OBISPO SERVICE CENTER 4325 SOUTH HIGUERA STREET SAN LUIS OBISPO, CA FOR: SITE LOCATION MAP DATE: 04t12110 APPROVED BY: BES/AR JOB NUMBER: '1 85702213.200.0003 DRAVVN BY: RRR CHECKED BY: AR % Stmk 57 Lafayette Circle, 2nd Floor Lafayette Calitornia PHONE: (925) 299-9300 FAX;(925) 299-9302 .^',^ R eitasdwdlr^6drs.M:\PG&E\PG&E - UST*l 12, 2010 at 1o:o4lLayout: FIGURE: 2 ,. il T -.'- & .& '4,.<t.',. ","t t\ t I I I t I I I I I I I ,l!rf-\.l \.'gt .s, I I r{F f'at, fi.t"' Pg....s -r1 t< l,'*: \ I I I , il I I.l "l I ,l :l ,t I I I 1 qtl \ \ .\rt': .l' ,/: t.w,\ \} .\d itt /d *t tu &"b O)asLo"'1sLo-2a df-, -.t"1r t!z 5 JJ tlJI O 4?1 t* 4a "t$ aslo-4t o slo-3 JCR{q' !.' /I'l I I ,l-t'f I I I I I I I I I I I q 4.o .t f {' 'jl-'f I .r..-'l {, t r +:..1 :.f. ,*, r,., , I ,l t " 1"!1 /_i.'l4L+--:=!*+_+: -\.r+t-5('i LEGEND: . SLO.1 BORING LOCATION 80 APPROXIMAI E FORMER US'IS AND FUEL ISLAND LocAI-IoN APPROXIMATE PG&E PTTOPERTY BOUNDARY APPROXIMA'IE SOAI,E IN FEET 160 % ,.t!;tlaij:-i. 57 Lafayelte Ci.cle, 2nd Floor Lafayette CaIfornia pH()Nf, (925) 2S9.9300 FAX (925) 299.9302 PACIFIC GAS AND ELECTRIC COI\ilPANY SAN LUIS OBISPO SERVICE CENTER 4325 SOUTH HIGUERA STREET SAN LUIS OBISPO. CA FOR JOB NUI",IBER 185702213 200 0003 DRAWN BY RRR CHECKED BY ARA/VD SITE MAP WTH BORING LOCATIONS APPROVED BY I]ES DATE 44t12t10F-IJS] i rcup uis ObiI;II.EPATI {13 sites dwqlroggasclrlApr l2 2010 at -t I I Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY I 1 APPENDIX A EDR Well Search Underground Storage Tank lnvestigation Report PG&E San Luis Obispo SC San Luis Obispo, California PN: 1857021223 April 26, 2010 j J J 1 "l SAN LUIS OBISPO SC 4325 S HIGUERA ST SAN LUIS OBISPO, CA 93401 lnquiry Number: 0231 8425.5r September 16, 2008 The EDR Radius Map" Report with GeoGheck@ l I .i .l 440 Wheelers Farms Road Milford, CT 06461 Toll Free: 800.352.0050 www.edrnet.conr@r"Rt Enuironmentat Data Resources tnc FORM.NULL.IIXP I PHYSICAL SETTING SOURCE ilAP - 02318425.5r @ + ,s 'tb '4' t 0 1tl 1n I Uhr7\ri countYBourdrry N MeJorRorde . Conbuaun r Eerthquekr Frult Un.. @ E nhqudo.plo.nt r,Rlchu5or!rut r @ WrbrW.Ir O PuHlcw.brErpplyWollr a Clljlbr ot MultpL loonr oroundu,.br Flow Dlrrctlon lnd.bmlnrb Groundwrbr Flow et locrton Groundwebr Flow Verl.. .t locedon Clo...t Hydrog.ologbd D.b Oll, grror rolebdwrlh I(O C!r) GE a i I .) SITE NAME: SAN LUIS OBISPO SC ADDRESS: 4325 S HIGUERA ST sAN LUIS OBISPO CA 93401 IAT/LONG: 35.2401 I 120.6771 CUENT: Paclllc Gas & Elecflc CONTACT: RObSAUT INQUIRY#: 02318425.5IDATE: Soptcrbff 16,2008 10:15am o I I GEOCHECK@. PHYSICAL SETTING SOURCE MAP FINDINGS Map lD Direction Distance Elevation Database EDR lD Number 1 NE 0 - 1/8 Mile Higher Water System lnformation : Prime Station Code: 30S/12E-10K02 M FRDS Number: 4000696001 District Number: 70 Water Type: Surface Water Source LaULong: 351428.0 12M030.0 Source Name: WELL 01 System Number: 4000696 System Name: PG&E SERVICE CENTER Organization That Operates System: Not Reported Pop Served: Unknown, Small SYstem Area Served: Not Reported User lD: County: Station Type: Well Status: Precision: CA WELLS '17483 40c San Luis Obispo ROAD.4315 SOUTH HIGUERA STREE Active Raw 1,000 Feet (10 Seconds) Connections: Unknown, Small System A2 NW 114 - 1l2Mile Lower Site lD: Groundwater Flow: Shallow Water Depth: Deep Water Depth: Average Water Depth: Date: NOT FOUND NW 18 19 Not Reported 01t24t1992 AQUIFLOW 5403 B3 NNW 1l2 - 1Mile Lower Water System lnformation: Prime Station Code: 31S/12E-10D02 M User lD: FRDS Number: 401000S002 County: District Number: 06 Station TYPe: WaterType: Well/Groundwaier Well Status: Source LaULong: 351448.3 12M049.4 Precision: Source Name: CALLE JOAQUIN/DENNYS WELL System Number: 4010009 System Name: SAN LUIS OBISPO WATER DEPARTMENT Organization That Operates System: P O BOX 8100 sAN LU|S OB|SPO, CA 93401-8100 Pop Served: 42500 Connections: Area Served: SAN LUIS OBISPO cAWELLS 17806 TAP San Luis Obispo WELL/AMBNT/MUN/INTAKE Active Raw 1,000 Feet (10 Seconds) 12500 A4 NW 1/2 - 1 Mile Lower Site lD: Groundwater Flow: Shallow Water Depth: Deep Water Depth: Average Water Depth: Date: 529 ESE 2 8.7 Not Reported 07 t0711987 AQUIFLOW 5407 "i TC02318425.5r Page A-12 I I I System Number: 4010009 System Name: SAN LUIS OBISPO WATER DEPARTMENT Organization That Operates System: P O BOX 8100 sAN LUIS OBISPO, CA 93401-8100 Pop Served: 42500 Connections: Area Served: SAN LUIS OBISPO Sample Collected: 0811712004 00:00:00 Findings: Chemical: TOTAL ORGANIC CARBON (TOC) Sample Collecied: 1213112002 00:00:00 Findings: Chemical: TOTAL ORGANIC CARBON (TOC) 12500 3.6 MG/L 3.7 MG/L GEOCHECK@. PHYSICAL SETTING SOURCE MAP FINDINGS -J J J J fCO2318425.5r Page A-14 PHYSICAL SETTING SOURCE RECORDS SEARCHED TOPOGR.APHIC INFORMATION USGS 7.5' Digital Elevation Model (DEM) Source: United States Geologic Survey EDR acquired the USGS 7.5' Digital Elevation Model in 2002 and updated it in 2006. The 7.5 minute DEM corresponds to the USGS 1:24,O00- and 1:25,000-scale topographic quadrangle maps. The DEM provides elevation data with consistent elevation units and projection. HYDROLOG]C INFORMATION Flood Zone Data: This data, available in select counties across the country, was obtained by EDR in 1999 from the Federal Emergency Management Agency (FEMA). Data depicts 100-year and 500-year flood zones as defined by FEMA. NWI: Naiional Wetlands lnventory. This data, available in select counties across the country, was obtained by EDR in 2002 and 2005 from the U.S. Fish and Wildlife Service. HYDROGEOLOGIC INFORMATION AQUIFLOWR lnformation System Source: EDR proprietary database of groundwater flow information EDR has developed the AQUIFLOW lnformation System (AlS) to provide data on the general direction of groundwater flow at specific points. EDR has reviewed reports submitted to regulatory authorities at select sites and has extracted the date of the report, hydrogeologically determined groundwater flow direction and depth io water table information. GEOLOGIC Geologic Age and Rock Stratigraphic Unit Source: P.G. Schruben, R.E. Arndt and W.J. Bawiec, Geology of the Conterminous U.S. at 1:2,500,000 Scale - A digital representation of the 1974 P.B. King and H.M. Beikman Map, USGS Digital Data Series DDS - 11 (1994). STATSGO: State Soil Geographic Database Source: Department of Agriculture, Natural Resources conservation Services The U.S. Department of Agriculture's (USDA) Natural Resources Conservation Service (NRCS) leads the national Conservation Soil Survey (NCSS) and is responsible for collecting, storing, maintaining and distributing soil survey information for privately owned lands in the United States. A soil map in a soil survey is a representation of soil patterns in a landscape. Soil maps for STATSGO are compiled by generalizing more detailed (SSURGO) soil survey maps. SSURGO: Soil Survey Geographic Database Source: Department of Agriculture, Natural Resources Conservation Services (NRCS) Telephone: 800672-5559 SSURGO is the most detailed level of mapping done by the Natural Resources Conservation Services, mapping scales generally range from 1:12,000 to 1:63,360. Field mapping methods using national standards are used to construct the soil maps in the Soil Survey Geographic (SSURGO) database. SSURGO digitizing duplicates the original soil survey maps. This level of mapping is designed for use by landowners, townships and county natural resource planning and management. LOCAL/ REGIONAL WAT FEDERAL WATER WELLS PWS: Public Water Systems Source: EPA/Office of Drinking Water Telephone: 202-564-37 50 Public Water System data from the Federal Reporting Data System. A PWS is any water system which provides water to at least 25 people for at least 60 days annually. PWSS provide water from wells, rivers and other sources. fC02318425.5r Page4-16 I PHYSICAL SETTING SOURCE RECORDS SEARCHED -t INFORMATION @ 2008 Tele Atlas North America, lnc. All rights reserved. This material is proprietary and the subject of copyright protection and other intellectual property rights owned by or licensed to Tele Atlas North America, lnc. The use of this material is subject to the terms of a license agreement. You will be held liable for any unauthorized copying or disclosure of this material. J TC0231M25.5r PageA-18 EDR* Environmental Data Resources lnc EDR - HTSTORTCAL SOURCE(S) ORDER FORM Pacific Gas & Electric Rob Saur Account # 6929626 SAN LUIS OBISPO SC 4325 S HIGUERA ST SAN LUIS OBISPO, CA 93401 SAN LUIS OBISPO CountY Lat./Long. 35.24010 I 120.67710 EDR lnquiry # 023'18425.5r Should you wish to change or add to your order, fax this form to your EDR account executive Rob Proctor Ph: 1 -800-352-0050 Fax: 1 -800-231 -6802 Reports - EDR Sanborn Map@5"rr.h/Print _ EDR Fire lnsurance Map Abstract - EDR Multi-Tenant Retail Facility@ Report _ EDR City Directory Abstract _ EDR Aerial Photo Decade Package _ USGS Aerial 5 Package _ USGS Aerial 3 Package _ EDR Historical Topographic Maps _ Paper Current USGS Topo (7.5 min.) _ Environmental Lien Search _ Chain of Title Search _ NJ MacRaes lndustrial Directory Report _ EDR Telephone lnterview Shipping: Email - Express, Next Day Delivery _ Express, Second Day Delivery _ Express, Next day Delivery Express, Second Day Delivery U.S. Mail Customer Account Customer Account RUSH SERVICE IS AVAILABLE Acct # Acct # Thank you I --1 I I I I Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY APPENDIX B Boring Permit Underground Storage Tank lnvestigation Report PG&E San Luis Obispo SC San Luis Obispo, California PN: 1857021223 April 26, 2010 J I J _l J "t I ,62l26lZALA:. A9in 4 '89578142Ll.ENVHEALTH I u ENVIRONMENTAL HEALTH SERV]CES ,Facsimile Cover theet From: February'28,2014 Vironex Fax Nunbcrl 925''299-9302 C/O Bnrco Scerborough Cindy Rafrigan - AdmlniEtntive Aseistant $ubject WellSiteAqprovqlfor.Z0l0'MW0lE-019 Number of pages includino gover paqe: 2 tsoFl 7Fl;8544 - Gln{Y,Fattisan Fnlr: (sos) 7814211 , ,,, ,, i,rrfi.i,fi,^,:1y?,rn,j!i?',"i'lll?6rnt"Fiili'li?flr1lii'"llilTon, , r,,,, r :PAGE.SIIa?, Date: To: J J .h.i .. ..:.,.,'r,ntllrTi:.l.illlliti.l1!r riIJtDltt..l i:,'/ , ,,, l. ..'t,1, 62/26/2ALA A3:14 8A578L42LL ENVHEALTH PAGE NzIA2 couNTV OF SAN LUIS OlslsPo- - PUELIC HEALTH DEPARTMENT Envltoniloit'l Health Servlces Ese sterrq waY r e'Q' e9l Jflf 6"n tui" €iblsPo' CA93406"1409- . pnonei(ibsizer'gs'i+ FAX: (805) 781'4211 I MONITORING IJI'ELL PERMIT APPLICATION' Name of Wellowner Name of ProPertY Owner Maillng Address of ProPertY gwner Name of Drllling Gontractor Drilling CompanY Name Business Address No. Phone No. C-5/ LiFonse No. Phone No. Proposed Wellsite Address Assasso/e Paroel No'05.1Lrt,4OO2 - TownshlP GPSParcelsize (aores)lrr OoastalZonal ls tha Parcel sarved wat€r bY a public water agenaY? Yes n No n City or Area ofcourrlY $&.-- Banga Coordinates ls the proposei wefr roiateo ilfitf,'ln N- city limits? Yes E ruo El w Drilling,Metlodof WellPWellTyng _ --q.olt,testingCathodic Protodion Sparging Testurctf tPrtti$& ngtrItrY AalL.,ba{,JA(x- Construdion Repair/ModifY 3 u.tat4 Annular SealDePth Proposed DePth Ngrnber of Wells Agency requiring Fr.Gaslng Diameter well-reason fof Conttactof to S l 1 I I -l I Stantec UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY I I APPENDIX C EC/MIP Logs Underground Storage Tank lnvestigation Report PG&E San Luis Obispo SC San Luis Obispo, California PN: 1857021223 April 26,2010 I _t J .l J : : : : :F:a' io ro<) () 150 x i ?: too5viioaSEtF: so $t€ILO-li 0ili:tl 350 = *'soov6 $$zsou= E Szoooo)o9.I F rso l6 i $ 'ooEE 50 T'3 o 30 20 15 '10 6 0- d) 5ti6 E& c)o6 z t E o)oco CL anq,tx(! =otr t E oaEoo-y'ox,x(lt E o o_ c)'{) a ro o orot\l N Depth (ft) ot()Nc\l Depth (ft) oloNC\l Depth (ft) oloc\l e{ Depth (ft) rO otooro(f)(f,\i$ o|r)atf,cD(r)$rt olr)oto(Y) (f) t <l 1.60E+05 1 40E+05 1.20E+05 1.00E+05 8.00E+04 6.00E+04 4.o0E+o4 2.00E+04 0.00E+00 8.00E+04 7.OOE+O4 6.00E+04 5.00E+04 4.00E+04 3.00E+04 2.00E+04 '1 .00E+04 0.00E+00 5 00E+05 4.50E+05 4,00E+05 3.59[+05 3.00E+05 2.53[+05 2.0OE+05 1.50E+05 1.00E+05 5.00E+04 0.008+00 0 =€?F,FEE6aJ4 E3 iFtr,sa =.8ogEErOlo I 0)e 350 f; g:oo Ec BHzsoti6 =,J!, E annE=ZUU?;I E 150lo-l6 o>5 d 100 =g8g 50urE oo0 350 300 254 200 150 100 50 roolcto :"o:o:-1 t E o)thco CL6 o)tx(! =o(J ru u)ro I I I dl lli n [1 I ,Jl \l,h,ll T t T I r t il \i I I I t rll I lF't t,L I I llj l' It Ir rr I I v I I I n I ,l i .Ll lh II l. -. I A I t I t U I I I !t rll I I Fr lr t rl L il I llJ l' 'lt I Ir fr I I v I I I I tJ I I lF t l,u, I I llr t U I I rvl lf ll il I a|(Jo|()(o(f)\r\flr)c) *o B { e !0t t{ 6 c;({) GrFroF Eeo.oa =-(9 rF IoJo o EGz EDF 'co m P Efies ^'ET:: XO .t (\l N c()-lrtlr)o* s a'ai $ # su INSru-' $ x3[\g? Fi - lti -l !:;Ai.+" F$i aho)tt cia) G c6 =E E{t 6, c ooc UJ aat o d,o)ft! !tE tgI U;o oz rironex,&&5292 Pacheco Boulevard Pacheco, CA 94553 P:(925) 521-1490 F:(925) 521-1491 wunv.vironex.conr Boring Name: SLO-2 Notes: Hand auger to 5' bgs. Encountered rcfusal at 39.55' bgs. Total Depth (ft):39.55 GWDepth (ft): D.pah of GW PE$ed by CIH Job lnformetion ECD i/tAX -Conductivity mS/M Conduc{ivity Response (Milli-Siemens/Irl) N) l\) (t(no(,to(.'tc)ooooooo - PID MA( -Conduc{ivity mS/lvl Conductivig Response (Milli-Siemens/M) o 0 5 10 15 - FID ft/ry( -Conduclivity mS/M Conducfivity Response (Milli-Siemens/M) o aEnnuu&UP|rsFPSI " ----PrdeTempmtu€MAx'C Probe TemP (Ce) (ro(t OOOO 10 15 N) N) ('('logrocttoc)oc)oc>o r l.J N) C\)(ro(Jto(r<)oooooo 0 5 0 5 0 5 _24(J o 3zs 202A20 10 15 oo!d e25 oo 10 15 oo =oE e25 30 35 40 45 30 35 40 45 30 35 40 45 30 35 40 45 NN(do('lo(to Nitrogen Pessure (PSl)FID (Max Response mV)PID (Max Reeponse mV)ECD (Max Response mV) 9!t'..:.Pi$!,)!,)ifooc)(,oolo('lo(Jloooooooooommmmmmmmmm++++++++++ooooooooooo'Acnoror('('(tor(' 9lr':.:.Nt\r!r!rfooo('lo(ro(toooooooooornmrnmmmmrnm+++++++++ooooooooooa(Jr(Jr(Jr(t(Jr(Jr(Jr 9!,l:':'1.rlu9!JF!!nooo(Jro(no(nc(noooooocfooc)oommmmmrnrnmmmm+++++++++++ooooooooooooa('r('r('(Jr(.'l(Jr(Jloru Name: I - 5 ) : D s 4 a -3= ? E -..9 I> > e dtr 5 .- ="T - ? .B 5 = J l t 4 e L t - D .d .r- I G - f!> -- I t F.- t {.- -{ - f - I I I L 5 ] E- - r- e f L - !t 1l -.-- { - - iE rlronex -l$lr**ffio 5292 Pacheco Boulevard Pae}eco, CA 94553 P:(925) 521-1490 F:(925) 521-1494 www.vironex.com Boring Name: slo-3 Notes: Hand augerto 5'bgs. Encountered refusal at 19.9'bgs. Depth (ft): ie.sTotal GW Depth (ft): Ordh of GW Prcvidod by Clbd STANTEC ECD Mru( -GondudivitymS/MConductMity Response (Milli-$iemenslM) > I :+- I:f_: <i_ =-T .+ =- -r =t_- : .q ! €-- < < < 150' --PlD M$( -Condudivity mS/M Conducfivity Response (Mil li-Siernens/M) N)so)@eilid;oooooooooo 0 > E I- r a a .q ,r > c - s !r- v - \ € - - < 15 20 mon l\tai 2g 2ol o t s:i t - FID MAX -Conductivity mS/M Conductivity Response (Milli$iernensn\t) N)AO)@C)1\}SCt@oc>oooooooo 0 15 20 --"*-..-Pt€gre PSI '..- -^ Probs Temperstu€ MAX 'C Probe Temp (C') (Jlo JJ N)SO)@Ot$SO)@oooooc)oooo C>a (Jl oo 00 5555 10101010 00E Uo 0o oo 15 20 15 20 9'!r:.:.rr!$9.r!t$Fooo(Jlo(i,ootoooooooooooommmrnmmmmmm++++++++++ooooC)oooooo5('lur(nCn(n(ncn(n !5!'lo(noooommm+++ooos55 lJJolom+oA mv) 9Sn:-..lul\)J,ooo('ro('roooC)oooommmmmrnm+++++++oooooooOdSAAAS p.'ls!r199):{ooooooooooooooc)c)mmmmmmrnrn++++++++OOOOOOOOodr('l(,lor(turu NN(!o(J)o(Jro ? -.\ > '- + I .= - < < i l 1,.- I I I I I li I 25 ECD (Max Response mV) 25 PID (Max Response 25 FID (Max Response mV) 25 Nitrogen Pressure {PSl) rironex"''h*o#' 5292 Pacheco Boulevard Pacheco, CA 94553 P:(925) 521-1490 F:(925) 521-1494 rvww.vironex-com Boring Name: SLO-4 Total Depth (ft); 23.05 Notes: Hand augerto 5'bgs. Encountered refusal at 23.05' bgs. Threads broke offtop of probe, lost probe.GWDepth (ft): Dc!& of GTTYPF!ffcd by Clinl Client iob inior#ation ECD MA)( -ConductivitymS/MConduclivity Response (Milli-Siernensftt) rN, N)50)@ONSO)@C)ooocfoooc)o(fo -PlD MA)( -Conduclivity mSlM Conductivity Response (Milli-Siemens/M) rr1\) NAO)@O1$50)@Oc)oc)oooooooo 0 15 20 MIP -FlD l&N( -Conductivity mS/M Conductiviry Response (Milli-Siemens/l.,]) JJN) N)50)@ONAOT@Oooooooooooo 0 15 > - > - l€ _7 I L >[ -= : , E20 15 ELisrauraPrKE PSI " -'-* ProbeTempsaturcMAX 'C Probe Temp (C") :31 (J|oo(Jr oO 555E 10101010 0 15 20 0 15 20 0o0oo oNoaooNobbbbbbbbbooooooooommmmmmmmm+++++++++ooooooooooassSssas g oro 5 9:'NPlqP):roooooooc)oooooooommmmmmmrn++++++++ooooC)oooo(n(n(n(n(J]inol biusooooommmtn++++oooo(rcn('(' 9N|.9)ocloooooornmmm++++ooooOAAS troom+oA NNOooc)('Io b { , \E- < : 5€ 4 - G: r < I f L I { -= !> - = I' =t - - <c E 25 ECD (Max Response mV) 25 PID (Max Response mV) 25 FID (Max Response mV1 25 Nitrogen Pressure (PSl) I I I "t I Stant€c UNDERGROUND STORAGE TANK INVESTIGATION REPORT PACIFIC GAS AND ELECTRIC COMPANY APPENDIX D Laboratory Analytical Results and C hai n -of-G ustody Records Underground Storage Tank lnvestigation Report PG&E San Luis Obispo SC San Luis Obispo, California PN: 1857021223 April 26, 2010 _t J J J J Page 1 of 31 alscience ental aboratories, lnc. April 12, 2010 Bill Debore Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Subject. Calscience Work Order No.: Client Reference: 10-04-0213 PG&E SLO / 1857021223.240.0002 Dear Client Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 41312010 and analyzed in accordance with the attached chain-of-custody. Unless othenrvise noted, all analytical testing was accomplished in accordance with the guidelines established in our Quality Systems Manual, applicable standard operating procedures, and other related documentation. 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. lf you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, L.-. Calscience Envi ronmental Laboratories, lnc. Danielle Gonsman Project Manager CSDLAC lD: 10109CA-ELAP lD: 1230 .NELAP lD: 03220CA SCAQMD lD: 93140830 FAX: (714) 894-75017440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' I I Page 3 of 31 alscience nvironmental aboratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No: Preparation: Method: 04t03t10 10-04-0213 EPA 3510C EPA 80158 (M) Page 2 of 2Project: PG&E SLO / 1857021223.200.0002 Lab Sample Date/Time Collected Matrix Date Date/Time lnstrument Prepared Analped QC Batch lDClientNumber Parameter TPH as Diesel Surrooates: Decachlorobiphenyl Result ND REC (%) 92 Number RL 50 Control Limits 6&140 DF Qual Units ug/L Qual 099-12€30-1,474 N/A Aqueous GC 49 0410611-0 0410711O 100406801A 03:28Method Blank I-t i-l IJ RL - Reporting Limit , DF - Dilution Faclor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 5 of 31 alscience nvironmental aboratories, Inc. Analytical Report I Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No: Preparation: Method: 04t03t10 10-04-0213 EPA 5O3OB EPA 80158 (M) Page 1 of2Project: PG&E SLO / 1857021223.200.0002 Lab Sample Date/Time Collected Matrix Date Dateffime lnstrument Prepared Analped QC Batch lDClientNumber Parameter TPH as Gasoline Surroqates: 1,4-Bromofluorobenzene Result ND REC (%) 79 Number RL 50 Control Limits 38-1U DF Qual Units 1 ug/L Qual 03/30/10 16:40 04n5/10 15:tl8sLo-2-15 1004{)213-lO 100/O5B01Aqueous GC 18 04t05110 sLo4-20 104,44213-2-D OgBl/1o Aqueous GC 18 04105110 14:50 o4tost10 16:24 100rOSB01 Parameter TPH as Gasoline Surrogates: 1,4-Bromofluorobenzene Result ND REC (%) 78 RL 50 Control Limits 3&134 DF Qual 1 Units ug/L Qual sLo-1-15 1044{2133€03/31/10 '|-7:15 Aqueous GC 18 04105110 04n5n0 1O0rO5BOl 17l.01 Parameter TPH as Gasoline Surroqates: 1,4-Bromofluorobenzene Result ND REC (%) 79 RL 50 Control Limits 3*134 DF Qual 1 Units uglL Qual SLO-WasteWater 10{4.021340 O3B1/10 Aqueous GC 18 04105110 18:10 04/05/10 17:37 100'm5B01 Parameter TPH as Gasoline Surrooates: 1,4-Bromofl uorobenzene Result ND REC (%) 75 RL 50 Control Limits 38-134 DF Qual 1 Units ug/L Qual I -J -J RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 7 of 31 alscience nvironmental aboratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No Preparation: Method: 04t03t10 10-04-0213 EPA 5O3OB EPA 80158 (M) Page 1 of 1Project: PG&E SLO / 1857021223200.0002 Lab Sample Number Date/Time Date Dateffime Matrix lnstrument Prepared Analped QC Batch lDClient Parameter TPH as Gasoline Surrooates: 1,4-Bromofl uoroberzene Result ND REC (%) 100 RL 0.50 Control Limits 42-126 DF Qual Units mg/kg Qual og/31/10 Solid Gc 4 04103110 18:00 04to4t10 O3:.44 SLO.Waste Soil 1044-0213€-A 100'O3801 Method Blank 099-12-2793,563 N/A Solid GC 4 04/03/10 04/03/10 12:54 100't03801 Parameter TPH as Gasoline Surrooates: 1,4-Bromofl uorobenzene - Fl D Result ND REC (%) 78 RL 0.50 Control Limits 42-126 DF Qual 1 Units mg/kg Qual RL - Reporting Limit DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA9284'l-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 9 of 31 alscience nvironmental aboratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO / 1857021223.200.0002 Date Received: Work Order No: Preparation: Method: Units: 04t03t10 10-04-0213 EPA 5O3OB EPA 82608 ug/L Page 2 of 6 Lab Sample Dateffime Collected Date Date/Time AnallzedClientNumber Dibromofluoromethane Toluene-d8 Matrix lnstrument QC Batch lD QualParameter Acetone Berzene Bromobenzene Bromochloromethane Bromodichloromeihane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carlcon Disulfide Carbon Tetrachloride Chloroberzene Chloroethane Chloroform Chloromethane 24hlorotoluene 4€hlorotoluene Dibromochloromethane 1,2- Dibromo-3-Chloropropane 1 ,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 1 ,$Dichlorobenzene 1 ,4-Dichlorobenzene Di chlo rodif luoromethane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene c-1 ,2-Dichloroethene t-1 ,2-Dichloroethene 1,2-Dichloropropane Surrogates: Result ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND REC (%) RL DF QuaI 50 1 0.50 1 1.0 1 1.0 1 1.0 1 1.0 1 10 1 10 1 1.0 1 1.0 1 1.0 1 10 1 0.50 1 1.0 1 5.0 1 1.0 1 10 1 1.0 1 1.0 1 1.0 1 5.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 0.50 1 1.0 1 1.0 1 1.0 1 1.0 1 Conkol Qual Limits 8A-132 8G120 Parameter 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene c-1,3-Dichloropropene t-1,$Dichloropropene Ethylbenzene 2-Hexanone lsopropylbenzene p-lsopropyltoluene Meihylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1, 1, 1,2-Tetrachloroethane 1, 1,2,2 -f etr achloroethane Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene 1, 1,1 -Trichloroethane 1, 1,2-Trichloro-1,2,2-Trif luoroethane 1,1,2-Trichloroethane Trichloroethene Trichlorof luoromethane 1,2,3-Trichloropropane 1,2,#Trimethylbenzene 1,3,$Trimethylberzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-tButyl Ether (MTBE) Surroqates: Result RL DF ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 0.50 1 ND 0.50 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 NDlO1 NDlO1 NDlO1 ND 1.0 1 ND '1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 'l NDlO1 ND 5.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 0.50 1 NO 1.0 1 ND 1.0 1 ND 1.0 1 REC (%) Control Limits 131 N-141 104 76-120 Qual 106 96 1,2- Dichloroethane-d 4 1,4-Bromof luorobenzene J 03/31/10 Aqueous GC/MS CC 04lOSl1O 14:50 04t0st't0 13:42 1044{2't3-2-A 100'105L01SLO-4'20 RL - Reporting Limit DF - Dilution Faclor Qual - Qualifiets 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 11 of31 alscience nvironmental aboratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 ' Project: PG&E SLO / 1857021223.200.0002 Date Received: Work Order No Preparation: Method: Units: 04t03t10 10-04-0213 EPA 5O3OB EPA 82608 ug/L Page 4 of 6 Client Number Dibromofluoromethane ToluenedS Parameter Acetone Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylberzene tert-Butylberzene Carbon Disulfide Carbon Tetrachloride Chloroberzene Chloroethane Chloroform Chloromethane 2€hlorotoluene 4-Chlorotoluene Dibromochloromethane 1,2- Dibromo-3-Chloropropane 1 ,2-Dibromoethane Dibromomethane 1,2-Dichlorobenzene 'l,SDichlorobenzene 1 ,4-Dichlorobenzene Dichlorod if luorometha ne 1,1-Dichloroethane 1 ,2-Dichloroethane 1 ,1-Dichloroethene c-1 ,2-Dichloroethene t1 ,2-Dichloroethene 1 ,2-Dichloropropane Surrogates: Result RL ND 50 ND 0.50 ND 1.0 ND 1.0 ND 1.0 2.6 1.0 ND 10 ND 10 ND 1,0 ND 1.0 ND 1,0 ND 10 ND o.50 ND 1.0 ND 5.0 ND 1,0 ND 10 ND 1.0 ND ,I.O 2,3 1.0 ND 5.0 ND 1.0 ND 1.0 ND 1.0 ND 1.0 ND 1.0 ND 1.0 ND 1.0 ND 0.50 ND 1.0 ND ,1 .O ND 1.0 ND 1.0 REC (%) Control Limits 97 8G132 'to1 80-120 Parameter 1 ,SDichloropropane 2,2-Dichloropropane 1 ,1-Dichloropropene c-1,3-Dichloropropene t-1 ,3-Dichloropropene Ethylbenzene 2-Hexanone lsopropylbenzene p-lsopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1 ,1 ,1 ,2-Tetrachloroethane 1, 1,2,2-T etr achlo roetha ne Tetrachloroethene Toluene 1,2,3-Trichloroberzene 1,2,4-Trichloroberzene 1, 1, 1 -Trichloroethane 1, 1,2-Trichloro-1,2,2-Trif luoroethane 1, 1,2-Trichloroethane Trichloroethene Trichlorof luoromethane 1,2,3-Trichloropropane 1,2,+Trimethylbenzene 1,3,$T ri methylbenzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-tButyl Ether (MTBE) Surroqates: DF 1 1 I I 1 1 'l 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I 1 ,| 1 1 1 1 1 Qual Qual Lab Sample Date/Time Matrix lnstrument Date Prepared Date/Time QC Batch lD Result RL DF Qual ND 1.0 1 ND 1.0 1 ND '1.0 1 ND 0.50 1 ND 0.50 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 NDlO1 NDlO1 NDlO1 ND 1.0 1 ND '1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 NDlO1 ND 5.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 0.50 1 ND '1.0 1 ND 1.0 1 ND '1.0 1 REC (%) Control Qual Limits 126 80-141 105 76-120 1 ,2-Dichloroethaned4 1,4-Bromof luorobenzene 03t31t'to 18:10 04/05110 .t0005L01 16:43 SLO-Waste Water 1044{2134-A Aqueous GC/MS CC 04105110 RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden crove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 13 of 31 alscience nvironmental aboratories, Inc, Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO I 1857021223.200.0002 Date Received: Work Order No: Preparation: Method: Units: 04t03t10 10-04-0213 EPA 5O3OB EPA 82608 ug/L Page 6 of 6 Lab Sample Dateffime Matrix lnstrument Date Prepared Date/Time Anallzed QC Batch IDClientNumber Dibromofluoromethane ToluenedB Parameter Acetone Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2€hlorotoluene 4€hlorotoluene Dibromochloromethane '1,2- Dibromo3-Ch loropropane 1,2-Dibrornoethane Dibromomethane 1 ,2-Dichlorobenzene 1,$Dichlorobenzene 1,#Dichlorobenzene Di chlo rodif luorometha ne 1 ,1-Dichloroethane 1 ,2-Dichloroethane 1 ,1-Dichloroethene c-1 ,2-Dichloroethene t-'1,2-Dichloroethene '1,2-Dichloropropane Surrooates: Parameter 1 ,$Dichloropropane 2,2-Dichloropropane 1 ,1-Dichloropropene c-1,3-Dichloropropene t-1 ,SDichloropropene Ethylbenzene 2-Hexanone lsopropylbenzene p-l sopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1 ,1 ,1 ,2-Tetrachloroethane '1, 1,2,2-Tetrachloroethane Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene 1,'1, 1 -Trichloroethane 1, 1,2-Trichloro-1,2,2-Trifluoroethane 1, 1,2-Trichloroethane Trichloroethene Trichlorofl uoromethane 1,2,3-Trichloropropane 1,2,4-Trimethylbenzene 1,3,5-T rimethylbenzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrooates: Result RL DF ND 1.0 1 ND 1.0 1 ND 1.0 I ND 0.50 1 ND 0.50 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 NDlO1 NDlO1 NDlO1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND101 ND 1.0 1 ND 1.0 1 NDlO1 ND 5.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 0.50 1 ND 1,0 1 ND 1.0 1 ND 1.0 1 REC (%) Control Limits 122 80-141 102 76-12A Result RL 50 0.50 1.0 1.0 1.0 1.0 10 10 1.0 1.0 1.0 10 0.50 1.0 5.0 1.0 10 1.0 1.0 1.0 5.0 1.0 1.0 1.0 '1.0 '1.0 1.0 1.0 0.50 1.0 1.0 1.0 1.0 Control Limits 80-132 BG12O DF Qual 1 1 1 1 1 1 I I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Qual Qual ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 104 99 REC (%)Qual 1,2-Dichloroethane-d4 '1,4-Bromof luorobenzene NIA Aqueous GC/MS CC 04105110 04t0511.0 10040SL01 12:12 Method Blank 099-14{01347 RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers I I 7440 Lincoln Way, Garden crove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714) 894-7501 Page 15 of31 L ) { ascrence -E-nvironmental=-: - aboratories, lnc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO / 1857021223.200.0002 Date Received: Work Order No Preparation: Method: Units: 04t03t10 10-04-0213 EPA 5O3OB EPA 82608 ug/kg Page 2 of 2 Lab Sample Date/Time Date Prepared Date/Time Analrzed QC Batch lDMatrix lnstrumentClientNumber Dibromofluoromethane Toluene-d8 Parameter Acetone Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon Disulfide Carbon Tetrachloride Chlorobenz ene Chloroethane Chloroform Chloromethane 2€hlorotoluene 44hlorotoluene Dibromochloromethane 1,2-DibromolChloropropane 1,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 1 ,$Dichlorobenzene 1 ,4-Dichlorobenzene Dichlorodif luoromethane 1 ,1 -Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene c-1 ,2-Dichloroethene t-1 ,2-Dichloroethene 1 ,2-Dichloropropane Surrogates; Parameter 1 ,$Dichloropropane 2,2-Dichloropropane 1 ,1-Dichloropropene c-1,3-Dichloropropene t-1 ,$Dichloropropene Ethylbenzene 2-Hexanone lsopropylbenzene p-l sopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1 ,'l , '1 ,2-Tetrachloroethane 1,1,2,2 -T etr achlo roetha ne Tetrachloroethene Toluene 1,2,3-Tric hlo robenzene 1,2,4-Trichlo robenzene 1,1,1 -Trichloroethane 1,1,2-Trichloroethane 1, 1,2-Trichloro-1,2,2-Trif luoroethane Trichloroethene 1,2,3-Tric hloropropane 1,2,4-Trimethylbenzene Trichlorofluoromethane 1,3,$Trimethylbenzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surroqates: Result RL DF ND 5.0 1 ND 5.0 1 ND 5.0 1 ND 5.0 1 ND 5.0 1 ND 5.0 1 ND501 ND 5.0 1 ND 5.0 1 ND501 ND501 ND501 ND 5.0 1 ND 5.0 1 ND 5.0 1 ND 5.0 1 ND 5.0 1 ND 5.0 1 NDlO1 ND 5.0 1 ND 5.0 1 ND 5.0 1 ND501 ND 5.0 1 ND 5.0 1 ND 5,0 1 ND501 ND 5.0 1 ND501 ND 5.0 1 ND 5.0 1 ND 5.0 1 ND 5.0 1 REC f/o) Conkol Limits 106 58-160 94 66-126 Result RL 120 5.0 5.0 5.0 5.0 5.0 25 50 5.0 5.0 5.0 50 5.0 5.0 5.0 5.0 25 5.0 5.0 5.0 10 5.0 5.0 5.0 5.0 5.0 5.0 5,0 5.0 5.0 5.0 5.0 5.0 Control Limits 71-137 87-111 DF Qual Qual ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 104 '100 QualREc (%)Qual 1,2-Dichloroethane-d4 1,4-Bromofluorobenzene j 0'U0ry10 12:17 Method Blank 100.105L01099-12-7963,057 N/A Solid GC/MS W 04ng1o RL - Reporting Limit , DF - Dilution Faclor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA92841-1427 ' TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 17 ol31 alscience aboratories, lnc. Quality Control - Spike/Spike Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Proiect PG&E SLO / 1857021223.200.0002 Date Received: Work Order No Preparation: Method: 04t03t10 10-04-0213 EPA 5O3OB EPA 80158 (M) DateDate Prepared Analped MS/MSD Batch NumberQuality Control Sample lD Matrix lnstrument ${,44.2',tA-'.|Aqueous GC 18 o4t05t10 04tost10 100405s01 Parameter MS o6REC MSD %REC o6REC CL RPD RPD CL Qualifierc TPH as Gasoline 68-122 0-189796 RPD - Relative Percent Difference . CL - Control Limit 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 Page 19 of31 -{j!1""i"n"" -f;:nvironmental fu ahoratories, Inc. Quality Control - Spike/Spike Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Proiect PG&E SLO / 1857021223.200.0002 Date Received: Work Order No: Preparation: Method: 04t03t10 10-04-0213 EPA 5O3OB EPA 82608 Quality Conirol Sample lD Matrix lnstrument Date Prepared Date Analyzed MS/MSD Batch Number sLo-2.15 Aqueous GC/MS CC 04/05/10 0u05t10 100405s01 Parameter MS oAREC MSD o6REC o6REC CL RPD RPD CL Qualifiers Berzene Carbon Tetrachloride Chlorobenzene 1 ,2-Dibromoethane 1 ,2-Dichlorobenzene 1 ,1-Dichloroethene Ethylbenzene Toluene Trichloroethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) Ted-Bu$l Alcohol (TBA) Diisopropyl Ether (DIPE) Ethylt-Butyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAM E) Ethanol 96 159 '101 113 102 106 117 1U 116 88 106 88 78 98 116 55 o', 1s5 98 109 98 102 112 1M 119 87 105 86 77 98 119 46 72-120 63-1 35 80-1 20 8G120 8G,120 60-132 78-120 74-122 69120 5&130 72-126 72-126 71-137 74-128 76124 35-167 o-20 o-20 0-20 0-20 o-20 o-24 o-20 o-20 o-20 0-20 o-21 o-20 o-23 o-20 0-20 o-48 1 3 3 3 4 4 t 1 2 1 1 2 2 1 2 17 3 RPD - Relative Percent Difference , CL - Conhol Limit 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 Page21 of31 I I alscience aboratories, Inc. Quality Control - LCS/LCS Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO / 1857021223.200.0002 Date Received: Work Order No Preparation: Method: N/A 10-04-0213 EPA 35508 EPA 80158 (M) Date Date LCS/LCSD Batch NumberQuality Conhol Sa ID Parameter TPH c Diesel Matrix lnstrument LCS O6REC 107 LCSD O6REC 06REC CL 75-123 RPD RPD CL Qualifiers 0-123104 099-12-2753,375 GC 49 04t06t10 ,t00405804Solid04to5t10 RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 Page 23 of 31 alscience aboratories, Inc. Quality Gontrol - LCS/LCS Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO I 1857021223.200.0002 Date Received: Work Order No Preparation: Method: N/A 10-04-0213 EPA 5O3OB EPA 80158 (M) Date Date LCS/LCSD Batch NumberControlle lD Matrix lnstrument Pre LCS 06REC 97 LCSD O6RECParameter TPH as Gasoline 06REC CL 78-120 RPD RPD CL 0-10 Qualifiers oo 2 099-124364,591 GC 18 04t05t1004t05t10 100lt()5801 RPD - Relative Percent Difference . CL - Control Limit 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-7501 Page 25 of 31 alscience aboratories, Inc, Quality Control - LCSILCS Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO / 1857021223.200.0002 Date Received: Work Order No Preparation: Method: N/A 10-04-0213 EPA 5O3OB EPA 8260B Quality Control Sample lD Matrix lnstrument Date Prepared Date Analyzed LCS/LCSD Batch Number 099-14.001.947 Aqueous GC/MS CC o4t05r10 04105110 100405L01 Parameter Benzene Carbon Tetrachloride Chlorobenzene 1 ,2-Dibromoethane '1 ,2-Dichlorobenzene 1 , 1-Dichloroethene Ethylberuene Toluene Trichloroethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) Ted-Butyl Alcohol (TBA) Diisopropyl Ether (DIPE) Ethyl-tButyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAM E) Ethanol LCS O6REC LCSD O6REC O6REC CL Qualifiers Total numberof LCS compounds : 16 Total numberof ME compounds : 1 Total number of ME compounds allowed LCS ME CLvalidation result : Pass 86 135 88 98 90 89 98 90 101 80 99 85 71 92 112 64 89 137 95 105 96 94 105 96 '105 80 104 93 74 96 118 58 80-122 6&140 80-1 20 80-121 8G.120 72-132 80-126 au121 8G.123 67-133 75-123 7+123 71-131 7c.124 8G123 61 -1 39 ME CL 73-129 56-152 73-127 73-128 73-127 62-142 72-134 73-128 73-130 ffi-144 67-131 67-131 61-141 ffi-132 73-130 4€'-152 RPD 3 2 I 7 o E 7 7 3 0 5 I 4 4 5 I RPD CL u20 o-20 0-20 o-20 0-20 o-25 o-20 G,20 G20 G20 o-20 o-20 o-24 o-20 o-20 o-27 ME RPD - Relative Percent Ditference , CL - Control Limit It ,.,\l 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 Page27 of31 1 alscience aboratories, Inc Work Order Number: 10-04-0213 Glossary of Terms and Qualifiers Qualifier ME ND o Definition See applicable analysis comment. Less than the indicated value. Greater than the indicated value. Surrogate compound recovery was out of control due to a required sample dilution, therefore, the sample data was reported without further clarification. 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. 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. The MS/MSD RPD was out of controldue to matrix interference. The LCS/LCSD RPD was in control and, therefore, the sample data was reported without further clarification. 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. Analyte was present in the associated method blank. Concentration exceeds the calibration range. Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. LCS Recovery Percentage is within LCS ME Control Limit range. Parameter not detected at the indicated reporting limit. 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. % Recovery andlor RPD out-of-range. Analyte presence was not confirmed by second column or GC/MS analysis. Solid - Unless othenrvise indicated, solid sample data is reported on a wet weight basis, not corrected for % moisture. 2 3 4 5 B E J X z I l j 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 02t 5 Ptrts129 Df 31 ##;${ **m##thitr} }} P F *sIl-#:#.I*s,fi#tr ttfiltft#'.9#&*ffif,n K"ifs,il'tisl{ rft}.$?f;ili ilIil1il SDSg #: 513876442 lll il]Ililil ililil#H iShip To: iSAMPLE RECEIVING icEL iz+ao urrucoLN wAY |GARDEN GROVE, CA 92841 COD: $0.00 Reference: STANTEC, ERI, BTS Delivery I nstructions : Signature Type: SIGNATURE REOUIRED RDEN GROVE RC 2843A ilt r | ilililt iltililtl]Iillilil til 80538628 Print Date:14:46 PM! Package 1 of 1 ,senO: :Labeli Tpi Friniei::i : :i E printRtt LABEL INSTRUCTIONS: Do not copy or reprint this label for additional shipments - each package must have a unique barcode. STEP 1 - Use the "Send Label to Printef'bufton on this page to print the shipping label on a laser or inkjet printer. STEP 2 - Fold this page in half. STEP 3 - Securely attach this label to your package, do not cover the barcode. STEP 4 - Request an on-call pickup for your package, if you do not have scheduled daily pickup service or Drop-off your package atthe nearest GSO drop box. Locate nearest GSo dropbox localions using this iink. ADDITIONAL OPTIONS: ?:trnl?tl , TERMS AND CONDITIONS: By giving us your shipment to deliver, you agree to all the service terms and conditions described in this section. our liability for loss or damage to any package is limited to your actual damages or $100 whichever is less, unless you pay for and declare a higher authorized value. lf you declare a higher value and pay the additional charge, our liability will be th'e - lesser of your declared value or the actual value of your loss or damage- [n any event, we will not be liable foi any damage, whether direct, incidenlal, special or consequential, in excess ofthe declared value of a shipment whether or not we had knowledge that such damage might be incurred including but not limited to loss of income or profit. We will not be liable for your acts or omissions, including but nol limited to improper or insuflicient packaging, securing, marking or addressing. Also, we will not be liable lf you orthe recipientviolates any of the terms of ouragreement. We will not be liable for loss, damage or delay caused by events we cannot control, including but not limited to acts of God, perils of the air, weather conditions, ait of public enemies, war, strikes, or clvil commotlon. The highest declared value for our GSO Priorily Letter or GSO Priority Package is $500. For other shipments the highest declared value is $10,000 unless your package contains items of 'extrao.rdinary value", in whlch case the highest declared value we allow is $500. ltems of "extraordinary value" include, but or not limiied to, artwork, jewelry, furs, precious metals, tickets, negotiable instruments and other items wiih intrinsic value. .l ii l! hi5h::r:,,....,::,,:r:: http:l/app.gso.com/Shippinglapplabeldetail.aspx?x=drHngZoxMo/o2f2VvJfBAa6Z3SsC3Df... 4l2l\0l0 I ) I 1 I Page 31 of31 WORK ORDER *= 10'04'ItrF" o z I o SAMPLE ANOMALY FORM SAMPLES. CONTAINERS & LABELS: y'sampte(s)/Entaine(s) NOT RECEIVED but listed on COC D Sample(s)/Gontainer(s) received but NOT LISTED on GOC ! Holding time expired - list sample lD(s) and test I lnsufficient quantities for analysis - list test I lmproper container(s) used - list test n lmproper preservative used - list test I No preservative noted on COC or label- list test & notify lab I Sample labels illegible - note tesUcontainer type n Simple label(s) do not match COC - Note in comments n Sample lD n Date and/or Time Collected n Proiect lnformation n # of Container(s) I Analysis n Sample container(s) compromised - Note in comments [J Water present in sample container n Broken n Without Label(s) tr Air sample container(s) compromisEd - Note in comments n Flat nVery low in volume n Leaking (Not transferred - duplicate bag submitted) n Leaking (transferred into Galscience TedhP Bag") n Leaking (transferred into Glient's Tedtar@ Bag*) n Other: Gomments: G6) O;esJ bofffr- *t noor.nnl brd- .h.rierJ on HEADSPACE - Containers with Bubble > 6mm or % inch: Sample #Cont|insr lo(s) # of Vials Rocelvad Sample *Containor lo(s)# of Vials Recaived Sample #Container lD{s) # of Conl. rscolvsd Analysle Gomments: lnitial/ Date*Transferred at Client's request. I , l I .J (Mt2g,l1 Page 2 of 11 alscience nvironmental ahoratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-61 50 Date Received: Work Order No Preparation: Method: 04t03t10 10-04-0213 EPA 3510C EPA 80158 (M) Page 1 of 3Project: PG&E SLO / 1857021223.200.0002 Lab Sample Dateffime Collected Date Date/Time lnstrument Prepared Analyzed QC Batch lDNumber Comment(s): Parameter TPH as Diesel Surrooates: Decachlorobiphenyl Matrix -The sample chromatographic paftem for TPH does not match the chromatographic pattern of the specified standard. Quantitation of the unknown hydrocarbon(s) in the sample was based upon the specified standard 'Result RL DF Qual Units 150 50 REC (%) Control Limits 101 6&140 ug/L Qual 03F0/10 16:40 04t0711O 10040680lA 04:1510{4{213-1€sLo-2-15 Aqueous GC 49 04108110 sLo-2-15 10{)4{213-1€O3FO/10 Aqueous GC 49 ONOB|IO 16:40 04t12t10 17:33 100.O0801S Comment(s): Parameter TPH as Diesel Surroqates: Decachlorobiphenyl -The sample extract urlas subjected to Silica Gel treatment priorto analysis. Result RL DF Qual ND501 REC (%) Control Limits Qual 94 68-140 Units ug/L sLo4-20 10444213-24 O3B1t1o Aqueous GC 49 04/06/10 14:5O o4n7t10 04:29 100't06801A Comment(s): Parameter TPH as Diesel Surrooates: Decachlorobiphenyl -The sample chromatographic pattern for TPH does not match the chromatographic pattem of the specified standard. Quantitation of the unknown hydrocarbon(s) in the sample r,tras based upon the specified standard- Result RL DF Qual Units 22O 50 1 ug/L REC (%) Control Limits Qual 90 68-140 RL - Reporting Limit , DF - Dilution Factor Qual - Qualiflers 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 4 ol 11 alscience nvironmental aboratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No: Preparation: Method: 04t03t10 10-04-0213 EPA 3510C EPA 80158 (M) Page 3 of 3Project: PG&E SLO / 1857021223.200.0002 Lab Sample Dateffime Collected Date Dateffime Matrix lnstrument Prepared Analyzed QC Batch lDNumber Parameter TPH as Diesel Surrooates: Decachlorobiphenyl Number Result RL ND 50 REC (%) C,ontrol Limits 86 6&140 DF Qual Units ug/L Qual 099-i2igo-1,478 N/A Aqueous GC 49 0/t/06/10 ut1u10 16:.48Method Blank 100406801S I *J J RL - Reporting Limit , DF - Dilution Faclor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1 427 . TEL:(714) 895-5494 ' FAX: (714) 894-7501 I -t I Page6of11 -L_glscience --=nvironmentalL aboratories, lnc, Quality Gontrol - LCS/LCS Duplicate I Date Received: Work Order No: Preparation: Method: N/A 10-04-0213 EPA 3510C EPA 80158 (M) Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO / 1857021223.200.0002 Date Date LCS/LCSD Batch Control Sa le lD Makix lnstrument Parameter TPH as Diesel LCS 06REC 110 LCSD O6REC 110 O6REC CL RPD 7*117 0 RPD CL 0-13 Qualifiers 099-12€30-1,478 Aqueous 04n?J10 100lo6801SGC 49 o4to6t10 I.l I l RPD - Relative Percent Difference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA9284'l-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 I-EL__JEE -T - Calscience Environmental Laboratories, lnc.CHAIN OF CUSTODY ou,u 3/3tl--l Socal Laboratory - 7MO Lincoln Way Garden Grove, CA 92E41 -1 427 (714) 89s-5494 fl'l Nor0al Service Center " 5063 Commercial Circle, Suite H Concord, CA94520-8577 (925) 689-9022 ffi Hts trJfi &tE tr$ ffi ffi ffi H$ Eti ii$t* ood I I I *lToE b; CLF /o2Time: Time: o dF o + dF o()o q @ N ooo ts o @o - o ><F. -f\ Eato o(0 -9.6 o 6t F L2-3. ta P.O. NO-: :m (JoFN@ o o o6 CL Date: , 7/a/to Date: , t t(/)/to Dat6: ./ c!@o@ o CDoo- co€ 6opo 6oo- oo N€ 6(J(> ar> @oob o0 .Lo oocul 6o@NcO o@ 6coo xo .t,E)) {+ cno@N@;(Jo )q ri' X 4 x /\ I o d!o@Ng trj cctF =xIUFco Jtal q o/ a!3 I F )\ 4' r { K A +() F.C) o <o o C) o E -ILF CLIENT PROJECT NAME / NUMBER: paL 9- st n COELT LOG CODESAMPLER(S): (PRINT) CONTACT: truxl RECIUESTED ANALYSES t,2 e o =o-l- { X X X K x 'ff^"uk OF NO. CONT. F 3 w e i n MATRDI Ut/ vJ d U \) uJ LfuReceived by: (Sig Receivecl by: (signature/Attiliatron) llLto trr.l 0 ,2 i{' t?ro t goD It{r)nlo ,./ TIMEDATE \ a SAMPLING 3koln tlu l,o \ I (FOR COELT EDF) FIELD POINT NAME <L C'- 'A- rs s/^o - 4-ro 1LC.-I-Lf- c,LA -r"laJL.rrulon 4L;9"'-- SAMPLE ID lLo-uas/e "so;l by: (Signature) (Signature) 2 5 b Rellnquished er: {signature) TABORATORY CLIENT: <lr;rt'l-p c- STATE ZIP IIADDRESS: Esxrre onv lzq nR n*'fkqffi{\fls onvs flro onvs TI'RNAROUND TIME: SPECIAL INSTRUCTIONS: 86'tt[o P6"camPl'z \ w, plrrzS?t\ dcd €00 rtL b hc,L preset've| 40 n 4rt6*t '+mbaj A vot's €1.0- l.t'-f har I [coslrror I SPECIAL REOUIREMENTS (ADDITIONAL flnwoce REPoRTTNG FoRMs 1 ? fo-rA /o.t,-t 4 4 5 IN? Etu Eptub Or I DISIRIBUTION; White with final report, Green and Yellow to Client. Please note that pages 1 and 2 of 2 of our TlCs are printed on the reverse side ofthe Green and Yellow copies respectively. 10101to7 WORK ORDER *:1A'04'o Page 10 of 11 Cooler I ol I DArE; 04 /3 / 10 fixte, GLIENT:gfarvtee b SAMPLE RECEIPT FORM I (Criteria: 0.0 oc - 6,0 oC, not frozen), oG(cr) = b .4 oC dat"nL L Sample(s) outside temperature criteria (PM/APM contacted by:-). tr Sample(s) outside temperature criteria but received on ice/chilled on same day of sampling. D Received at ambient temperature, placed on ice for transport by Courier. Ambient Temperature: tr Air tr Filter D Metals Only tr PCBs Only n Sample RE: Thermometer lD: SC J- . q oC+o.S lnitial: '/S- TEMPERATU Temperature /wot Present /Not Present YLT'N N/A CUSTODY SEALS INTACT: tr Sample lnitial: lnitial: U No (Not lntact) tr No (Not lntact) tr Cooler tr D I -J Chain-Of-Custody COC document(s) SAMPLE GONDITION: (coc)s)with samples........ complete E Collection date/time, matrix, and/or # of containers logged in based on sample labels' fl No anatysis requested. D Not relinquished. D 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,.' Proper preservation noted on COC or sample container... E Unpreserved vials received for Volatiles analysis Volatile analysis container(s) free of headspace Tedlar bag(s) free of condensation... ,,.... CONTAINER TYPE: Yes ,E.t { tr tr n tr tr n tr tr { N/A tr tr No tr I ! { d n d { { d tr tr tr tr n n Sofid: .dqozCCl trSozCGJ tr16ozCGJ trsleeve (-) trEnoores@ ETerraCores@ D- water: trvoA Wuoon trVoAnaz tr12sAGB nl2sAGBh tr125AGBp tr1AGB DlAGBnazDlAGBs trbooAGB kuoooo, tr5ooAGJs tr2soAGB trzsoccB tr25ocGBs nlpB trsooPB trb00PBna tr250P8 tr250PBn tr125P8 El2SPBznna tr100PJ tr100PJnaz tr_ Air: tlTedlar@ ESumma@ Other:Trip Blank Lot#:04t0-2t C Labeled/Ghecked bv: Container: C: Clear At Amber P: Plastic G: Glass J: Jar B: Bottle Z; Ziploc/Resealable Bag E: Envelope ReVieWed by: preservatve: h: HCL n: HNO3 na2:Na2S2O3 na: NaOH p: HsPOt s: HzSOI znna: ZnAcz+NaOH f; Field'filtered SCanned by: Page 11 ol 11 I WORK ORDER *: 1 0-04-Eftiltr- -1 I I I I J Jri o ,o SAMPLE ANOMALY FORM SAMPLES. CONTAINERS & LABELS:Comments: /Samptels)/gn$lne(s) NoT REGE tvED but tisted on coG ?6' Dh*'l bo#b *t pa-intl tr Sample(s)/Container(s) received but NOT LISTED on COC tr Holding time expired - list sample lD(s) and test n lnsufficient quantities for analysis - list test n lmproper container(s) used - list test n lmproper preservative used - list test D No preservative noted on COC or label- list test & notify lab I Sample labels illegible - note tesVcontainer type n Sample label(s) do not match COC - Note in comments n Sample lD n Date and/or Time CollEcted n Project lnformation n # of Container(s) I Analysis n Sample container(s) compromised - Note in comments n Water present in sample container flBroken tr Without Label(s) n Air sample container(s) compromised - Note in comments tl Flat nVery low in volume n Leaking (Not transferred - duplicate bag submitted) fl Leaking (transferred into Galscience Tedlar@ Bag*) n Leaking (transferred into Client's Tedtar@ Bag") but- .h,c'iezl on HEADSPACE - Gontainers with Bubble > 6mm or % inch: Gomments: Sample #Conlainor lD(s) # ot Vials Recofuad Sample #Containor lo(s)# of Vials Rocoived Sample #Containsr lD(s) * o, Conl. recelvgd Analyslg "Transferred at Client's request.lnitial/ 00_090 (ulN1 P€pl$fiI 11 l I ) f {}#f} \,01,X'**mt{t**rr*rl { ffirsewhrtr}}} }F #{$Q*$:tZr"**g# t*r*rUf "fl##.*fip.fit 021 b ng ilil #: 513876442 coD $0.00 ililllI Iilfiil1ilil]r SDS oRc D RDEN GROVE 92843A^ i7440 LINCOLN WAY :GARDEN GROVE, CA 92841 Reference: STANTEC, ERI, BTS Delivery lnstructions Signature Type: SIGNATURE REOUIRED ' .s-ehd :Label. To: Ptinter.:. ',.E pnntrut lll I | illtlll |ililil]Iililil til 8053862E Package 1 ol 1 LABEL INSTRUCTIONS: Do not copy or reprint this label for additional shipments - each package must have a unique barcode. STEP 1 - Use the "Send Labelto Printel'button on this page to print the shipping label on a laser or inkjet printer. STEP 2 - Fold this page in half. STEP 3 - Securely attach this label to your package, do not cover the barcode. STEP 4- Request an on-call pickup foryourpackage, ifyou do not have soheduled daily pickup service or Drop-offyour package atthe nearest GSO drop box. Locate nearest GSO dropbox localions using this link. ADDITIONAL OPTIONS: TERMS AND CONDITIONS: By giving us your shipment to deliver, you agree to all the service terms and conditions described in this sectlon, our liability for loss or damage to any package is limited to your actual damages or $100 whichever is less, unless you pay for and declare a higherauthorized value. lf you declare a highervalue and pay the additional charge, our liabilitywlll 6etiie - lesser of your declared value or the actual value of your loss or damage. ln any event, we will not be liable foi any damage, whether direct, incidental, special or consequential, in excess of the declared value of a shipment whether or not we had knowledge that such damage might be incurred including but not limited to loss of income or profit. We will not be liable for your acls or omissions, including but not limited to improper or insufficient packaging, securing, marking or addressing. Also, we will not be liable lf you or the reclpient violates any of the terms of our agreement. We will not be liable for loss, damage or delay caused by events we cannot control, including but not limited to acts of God, perils of the air, weather conditions, act of public enemies, war, strikes, or clvil commotlon. The highest declared value for our GSo Priorily Letter or GSO Priority Package is $500. For other shipments the highest declared value is $10,000 unless your package oontains items of "extraordinary value", in whlch case the highest declared value we allow is $500. ltems of "extraordinary value" include, but or not limited to, artwork, jewelry, furs, precious metals, tickets, negotiable instruments and other iterns wifh intrinsic value. - : :l- irilhttp.l/app,gso.com/Shipping/applabeldetail.aspx?x=drHngZorNIo/o2f2VvJf8Aa6Z3SsC3Df... 412/ZOIO Page 7 of 11 alscience aboratories, Inc. Work Order Number: 10-04-0213 Glossary of Terms and Qualifiers Qualifier ME ND o 1 Definition See applicable analysis comment. Less than the indicated value. Greater than the indicated value. Surrogate compound recovery was out of control due to a required sample dilution, therefore, the sample data was reported without further clarification. 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. Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of controldue to matrix interference. The associated LCS and/or LCSD was in controland, therefore, the sample data was reported without further clarification. 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. 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. Analyte was present in the associated method blank. Concentration exceeds the calibration range. Analyte was detected at a concentration below the reporting limit and above the laboratory method detection limit. Reported value is estimated. LCS Recovery Percentage is within LCS ME Control Limit range. Parameter not detected at the indicated reporting limit. 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. % Recovery and/or RPD out-of-range. 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. I I I 2 3 4 5 B E J X z .i l .J -J 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-75A1 Page5of11 -l alscience ahoratories, lnc. Quality Control - LCS/LCS Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No Preparation: Method: N/A 10-04-0213 EPA 351 0C EPA 80158 (M) Project: PG&E SLO / 1857021223.200.0002 Date Date LCSILCSD Batch NumberQuality Control Ie lD Parameter TPH as Diesel Matrix lnstrument LCS O6REC LCSD O6REC 114 1@ O6REC CL 7*117 RPD RPD CL QUAI|fiCTS 0-'13 099-12€30-1,474 o4n7ho 100/06801AGC 49 04/06/10 RPD - Relative Percent Difference , CL - Conhol Limit "J 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 Page3ofl1 alscience nvironmental ahoratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No Preparation: Method: 04103110 10-04-0213 EPA 3510C EPA 80158 (M) Project:PG&E SLO / 1857021223.200.0002 Page 2 of 3 Lab Sample Number Date/Time Date Date/Time Matrix lnstrument Prepared Analyzed QC Batch lD Client Comment(s): Parameter TPH as Diesel Surroqates: Decachlorobiphenyl -The sample extract was subjected to Silica Gel treatment priorto analysis. Result RL DF Qual ND501 REC (%) Control Limits Qual 89 6&140 Units ug/L og/31/10 Aqueous GC 49 0tU06/10 14:50 04112110 100406801S 17i4910444,213-25sLo4-20 sLo-'t-15 10{)4{}213€O 03/91/10 Aqueous GC 49 0/U05110 '17:15 04to7t10 04:tls 100.106801A -The sample chromatographic pattem forTPH does not match the chromatographic pattem of the specified standard. of the unknown hydrocarbon(s) in the sample was based upon the specified standard. Result RL DF Qual Units QuantitationComment(s): Parameter TPH as Diesel Surroqates: Decachlorobiphenyl 160 50 REC (%) Control Limits 93 6&140 ug/L Qual slo-1-15 100442133€ o"rql#o Aqueous Gc 49 0'v06/10 04t1?/10 18:04 ,100'l()6801s Comment(s): Parameter TPH as Diesel Surrooates: Decachlorobiphenyl -The sample extract was subjected to Silica Gel treatment priorto analysis' Result RL DF Qual ND501 REC (%) Control Limits Qual a2 68-140 Units ug/L Method Blank 099-12'330-1,474 N/A Aqueous GC 49 O4lO8l1O O4n7n0 1001166801A 03:28 Parameter TPH as Diesel Surrooates: Decachlorobiphenyl Result RL ND 50 REC (o/o) Control Limits 92 68-140 DF Qual Units ug/L Qual RL - Reporting Limit , DF -Factor , Qual -Qualifiers 7440 Lincoln Way, Garden Grove, CAg2841-1427 ' TEL:(714) 895-5494 ' FAX: (714)894-7501 I alscience aboratories, Inc, April 13,2010 Bill Debore Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Subject: Calscience Work Order No.: Glient Reference: Page 1 of 11 Supplemental Report 1 Additional requested analyses are reported as a stand-alone report. 10-04-0213 PG&E SLO / 1857021223.200.0002 I I Dear Client Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 41312010 and analyzed in accordance with the attached chain-of-custody. Unless othenruise noted, all analytical testing was accomplished in accordance with the guidelines established in our Quality Systems Manual, applicable standard operating procedures, and other related documentation. 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. lf you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, L*- Calscience Envi ronmental Laboratories, lnc. Danielle Gonsman Project Manager CSDLAC lD: 10109CA-ELAP lD: 1230 .NELAP ID: O322OCA SCAQMD lD: 93140830 FAX: (714) 894-7501 .J 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' "{#Is" woRK oRDER *:10-04' Page 30 of 31 Cooler / of I DArE; 04 /3/10CLIENT- gfarvtee o I b SAMPLE RECEIPT FORM 1 (Criteria: 0.0 oC - 6.0 oC, not frozen), oG(cr) = b ,4 oC detunL EsamPle ! sample(s) outside temperature criteria (PM/APM contacted by: ). fl Sample(s) outside temperature criteria but received on ice/chilled on same day of sampling. tr Received at ambient temperature, ptaced on ice for transport by Courier' Ambient Temperature: E Air tr Filter tr Metals Only tr PCBs Only RE: Thermometer lD: SC "2- . q oG+0.5 lnitial: t/C TEMPERATU Temperature lnitial: Yt lnitial: Yt N N/A CUSTODY SEALS INTAGT: /ttot Present /Not Present El No (Not lntact) tr No (Not lntact)U Sample tr- tr Cooler tr SAMPLE CONDITION:Yes No tr tr N/A tr n Chain-Of-CustodY COC document(s) (coc)s)with samples f, f t n d / /d { tr complete E Collection date/time, matrix, andlor # of containers logged in based on sample labels' E No analysis requested. El Not relinquished. E 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 sutficient volume for analyses requested Analyses received within holding time,.' Proper preservation noted on COC or sample container' fl Unpreserved vials received for Volatiles analysis Volatile analysis container(s) free of headspace' Tedlar bag(s) free of condensation' ', . ' CONTAINER TYPE: n { n tr tr tr n n tr n tr tr n tr u { Solid: CqozCCl tr8ozCGJ tr16ozCGJ trsleeve (-) trEngores@ E1TerraCores@ btwater: trvoA zvoAh trVoAnaz tr12sAcB tr12sAGBh tr125AGBp DlAGB trlAGBnaz tr1AGBs t, trbooAGB ilsoonc.t tr5ooAGJs tr250AGB tr250ccB tr25oCGBs tr1PB tr500PB tr5OOPBna tr250P8 D250PBn tr125P8 tr12sPBznna tr100PJ tr1oOPJnaz Air: ETedlar@ trSumma@ Other:Trip Blank Lot#:0q A23 c LabetedlGhecked by: c:Clear A:Amber P Plastic G Glass J:Jar B:Bottle t.ZiploclResealable Bag E:Envelope Reviewed by: Container: Preservatlve:h:HCL n:HNOg na2:Na2S203 na NaOH p:HePo,r s:HzSOr znna:ZnAc2+NaOH f:Field-filtered Scanned by: l .l I -J J,*-llufrr o!t -o c.o Joo m J -o J Jo J .-1.o -r A'cto-A'F}o =.o -o -J P !s,igea68e5c=Hot LodEo F.6 iS 9.Pa(oN@! -!,AN--t tr BqHAJ.:5 co c)o9 oEL@CiO rrP'^ 3 6',6lr 5 l EA3 F6 6'c) Hag@: osF-{'a c o I c)I z o'T oc U) -..|oo (/ G- E l'l- I M ri*!€dffiifiltft ffiffif*'E rkfr*i LffiMffiffiESEil$!*nfiffffiffi 6#tr it6r-...t TPH (s) [TO-3]+_ c oI 3 !q VOCs (T0-14A) or [t0-15) C(Vl) [il96A or 7199 or 218.61 T22 Mehls (601081147X) Fft F !p zo tr.:' N-, \cFl"\' \t PNAs (831 0) or (8270C)e9NSt(> o 0, (}' 1: PCBs (8082) Peslicides (8081A) SVOcs (8270c) Encore Prep (5035) 0rygenates (82608) V0Cs (82608) ttvH\b/,A,x-\x. BTEX/ MTBE (82608)or (_) TPH !Dr",,qel tr0(s'f1 )I\Ykt'TPH (d) or (C7-C36) or (C7-C44) otr mz{ !n emo{ =m zc3tpmn D F,$" Y\ c J c)omI 5oooom a =1'-mna^T4zJJ T Trf n moc m v,{ mg z r a ma rxkx TPH (s)ft(s-rtNx\ n9.\Elt.-3N 9*aa'${4,P 4v\\{_\'6\ vooo?'oo. ET .t< (t (6a 0) \\Er\> t= IA'4o:ft" tr {1r 7ooo ooo- a(oJ!)4 6 6'EioI N o,t G n n r{, sat)qJ C>a P- o a 3!trzo_i m E -lm ,o SSo Ut -. s l€ 'Tto7oomq mI-n .TI Firo !Iz1 m ( I a) 1lrm c] -/.\ \J i >\ , =? (A r-.1., C) 'Et J.' <l J\l-C) : I ,l -,^) 1-<) I .T N(-.il A AY- S o , E s h t F @oA -lon vA I se #t 0 -- ni sr:bLn 5 a\ ? -s (J'' e5o Jl-$'rt)d.nq,l 5'.o.c 6 =oo,rG: U) (l1 0)d d N! at+ -.1m N 0 qoAmovt oIndutfr 2frmosS ?q =!T nNs-v T5@rt -\,ils *9 I Ol c, U' tr og lt, a.o marvmocvm mz{ato(f aoz r ooa-la .tt 1' 3 x =oo @vm1'onJzo -Yl on3Q noo mq mo.Tl l \\s. s s s ('e sj l-\ c\>\ \s 5-S$5J-= ;ra q >l 3 s5 .\ \\ $<r qq (r\ (^r j ,\ ss .ssP ssI z, $'q a-o mo r J\ e EI >. - t- oF-z6> ?E o=@Jo4:6O-6=36Dz €<D<(of,(o=@o*€oa =ro-5 rufro- ilEsso?EO -.r dbg@o DfdoE# =og{ oo3ailq (D' (D d(D 66oo =o 6) d(Da l!)ao G=o€ooEit' 6 @Eoo E'o rJ{i li l [-',i' i i I-i,lr;{:, x filt'ti : I,lrl, I I o 6 o{ }; I t,lli., Let6woli6EH'u'"0' Page 26 of 31 alscience aboratories, Inc. Quality Control - LCS/LCS Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No Preparation: Method: N/A 10-04-0213 EPA 5O3OB EPA 8260B Project: PG&E SLO / 1857021223.200.0002 Quality Control Sample lD Matrix lnstrument Date Prepared Date Analyzed LCS/LCSD Batch Number 099-12-7963,057 Solid GC/MSW 04/05/10 o4to5t10 100405L01 Parameter Benzene Carbon Tetrachloride Chlorobenzene 1,2-Dibromoeihane 1 ,2-Dichlorobenzene 1 ,1-Dichloroethene Ethylbenzene Toluene Trichloroethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) Terl-Butyl Alcohol (TBA) Diisopropyl Ether (DIPE) Ethyl-t-Butyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAM E) Ethanol LCS O6REC LCSD OAREC O6REC CL RPD CL Qualifiers Total numberof LCS compounds : 16 Total numberof ME compounds : 0 Total number of ME compounds allowed LCS ME CL validation result : Pass 99 107 97 102 95 85 97 98 100 93 94 90 92 98 100 76 98 110 96 96 93 87 96 97 100 94 u 86 96 90 94 80 8S.1 15 6&134 83-1 19 8G120 57-135 72-120 80-120 67-127 88-112 57-129 7G124 31-145 74-128 77-125 81-123 44-152 ME CL ao-120 57-145 77-125 73-127 44-148 M-128 73-127 57-137 u-116 45-141 68-'132 12-164 65-137 69-133 74-130 26-170 RPD 1 2 2 6 3 2 0 1 1 0 11 5 o 7 E G11 o-14 G,9 0-20 G.10 0-10 o-20 G.10 o.9 G16 G.12 o-23 &10 G,9 G10 o24 ,[h[^; Percent Ditference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714) 894-75A1 ._ -i Page 24 ol 31 L:g!science -E=nvironmental fu ahoratories, Inc. Quality Control - LCS/LCS Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO / 1857021223.200.0002 Date Received: Work Order No Preparation: Method: N/A 10-04-0213 EPA 5O3OB EPA 80158 (M) Date Date LCS/LCSD Batch NumberControl Parameter TPH as Gasoline ID Matrix lnstrument LCS O6REC LCSD %REC 399102 O6REC CL 7U124 RPD RPD CL 0-18 Qualifiers 099-12-2793,563 04/03/10GC404103r10 100'm3801Solid RPD - Relative Percent Difference , CL - Conhol Limit 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 Page22 of 31 alscience aboratories, lnc. Quality Gontrol - LCS/LCS Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No Preparation: Method: N/A 10-04-0213 EPA 3510C EPA 80158 (M) Project: PG&E SLO / 1857021223.200.0002 Date Date LCS/LCSD Batch NumberQuality Control ID Parameter TPH as Diesel Matrix Ana LCS 06REC 114 LCSD O6REC 109 O6REC CL RPD 7*117 E RPD CL 0-'13 Qualifiers 099-12330-1,474 GC 49 04/06/10 04to7110 100406801A RPD - Relative Percent Dlfference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 Page 20 of 31 alscience ahoratories, lnc, Quality Control - Spike/Spike Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Proiect PG&E SLO / 1857021223.200.0002 Date Received: Work Order No Preparation: Method: 04t03t10 10-04-0213 EPA 5O3OB EPA 82608 Quality Control Sample lD Matrix lnstrument Date Prepared Date Analped MSiMSD Batch Number SLO-Waste Soil Solid GC/MS W 04t05t10 04to5t10 100405s01 Parameter Berzene Carbon Tetrachloride Chlorobenzene 1 ,2-Dibromoethane '1,2-Dichlorobenzene 1,1-Dichloroethene Ethylberzene Toluene Trichloroethene Vinyl Chloride Methyl-t-Brltyl Ether (MTBE) Ted-Butyl Alcohol (TBA) Diisopropyl Ether (DIPE) Ethyl-t-Butyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAME) Ethanol MS o6REC MSD o6REC oAREC CL RPD RPD CL Qualifiers 10 26 29 11 46 4 39 21 22 3 4 10 12 0 J 27 102 101 89 ot 72 89 86 97 105 1M 80 1M 97 87 89 110 92 77 67 83 45 85 58 78 85 102 83 94 87 87 87 84 40-142 37-139 43-127 7G.130 4G.160 1&178 70-1n 44-128 47-131 29-161 42-1ffi 61-1 09 7:J.'133 73-132 82-120 39-117 0-18 o-20 o-26 0-30 0-36 o-25 0-30 0-1 5 0-19 o42 o-34 o47 o-25 o-25 o-25 0-99 4 4 4 3,4 4 4 RPD - Relative Percent Difference . CL - Control Limit 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (7M)e94-7501 Page 18 of31 alscience aboratories, lnc. Quality Control - Spike/Spike Duplicate Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Proiect PG&E SLO / 1857021223.200.0002 Date Received: Work Order No Preparation: Method: 04t03t10 10-04-0213 EPA 5O3OB EPA 801sB (M) DateDate Prepared Analped MS/MSD Batch NumberQuality Control Sample lD Matrix lnstrument 1043-23M-22 Solid GC4 o4t03t'10 0u03t10 100403s01 Parameter TPH as Gasoline MS o6REC MSD o6REC oiREC CL RPD RPD CL Qualifiers '105 48-114 0 0-23105 RPD - Relative Percent Difference , CL - Control Limit l 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 Page 16 of31 alscience nvironmental Quality Control - Spike/Spike Duplicate aboratories, lnc. l l Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Proiect PG&E SLO / 1857021223200.0002 Date Received: Work Order No Preparation: Method: 04t03t10 10-04-0213 EPA 35508 EPA 80158 (M) I J DateDate Prepared Analyzed MS/MSD Batch NumberQuality Control Sample lD Matrix lnstrument 1043-,t933-20 Solid GC 4f)04/05/10 ou06/10 100405s04 Parameter MS o6REC MSD o6REC o6REC CL RPD RPD CL Qualifiers TPH as Diesel 113 110 64-1 30 5 0-15 l i ,.j RPD - Relative Percent Dilference , CL - Control Limit 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 . FAX: (714)894-7501 Page 14 of 31 alscience nvironmental aboratories, Inc, Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO / 1857021223.200.0002 Date Received: Work Order No: Preparation: Method: Units: 04t03t10 10-04-0213 EPA 5O3OB EPA 82608 ug/kg Page 1 of 2 Lab Sample Dateffime Collected Date Date/Time Client Number Dibromofluoromethane Toluene{8 Matrix lnstrument QC Batch lD QualParameter Acetone Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2€hlorotoluene 4-Chlorotoluene Dib romochlorornethane 1,2-Dibromo-SOhloropropane 1 ,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 1 ,$Dichlorobenzene 1 ,4-Dichlorobenzene Dichlorodifluoromethane 1 ,1-Dichloroethane '1 ,2-Dichloroethane 1 ,1-Dichloroethene c-1 ,2-Dichloroethene t-1 ,2-Dichloroethene 1 ,2-Dichloropropane Surrooates: Result RL ND 12O ND 5,0 ND 5.0 ND 5.0 ND 5.0 ND 5.0 ND 25 ND 50 ND 5.0 ND 5.0 ND 5.0 ND 50 ND 5.0 ND 5.0 ND 5.0 ND 5.0 ND 25 ND 5.0 ND 5.0 ND 5.0 ND 10 ND 5.0 ND 5.0 ND 5,0 ND 5.0 ND 5.0 ND 5.0 ND 5.0 ND 5.0 ND 5,0 ND 5.0 ND 5.0 ND 5.0 REC (%) Control Limits 108 71-137 102 87-111 Parameter 1 ,3-Dichloropropane 2,2-Dichloropropane 1 ,1-Dichloropropene c-1,3-Dichloropropene t-1 ,SDichloropropene Ethylbenzene 2-Hexanone lsopropylbenzene p-lsopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1,1,1,2-T etr achloroethane 1,1,2,2 -T etr achlo roetha ne Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene 1, 1,1 -Trichloroethane 1, 1,Z-Trichloroethane 1, 1,Z-Trichloro-1,2,2-Trif luoroethane Trichloroethene 1,2,3-Trichloropropane 1,2,4-Trimethylbenzene Tri chlorof luoromethane 1,3,$Trimethylbevene Vinyl Acetate Vinyl Chloride p/rn-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrogates: DF Qual Result ND ND ND ND ND ND ND ND ND NO ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND REC (%) RL 5.0 5.0 5.0 5.0 5.0 5.0 50 5.0 5.0 50 50 50 5.0 5.0 5.0 5.0 5.0 5.0 10 5.0 5.0 5.0 50 5.0 5.0 5.0 50 5.0 50 5.0 5.0 5.0 5.0 Control Limits 58-160 66-'t26 Qual Qual 1,2-Dichloroethaned4 1,4-Bromof luorobenzene 107 93 o3t31t10 18:00 04/05/10 13:35 100'O5L0110{)4{213.5-ASLO-Waste Soil Solid GC/MS W o4t05110 RL - Reporting Limit , DF - Dilulion Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 12of31 alscience nvironmental aboratories, lnc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO / 1857021223.200.0002 Date Received: Work Order No: Preparation: Method: Units: 04t03t10 1 0-04-02 1 3 EPA 5O3OB EPA 82608 ug/L Page 5 of 6 Lab Sample Date/Time Matrix lnstrument Parameter 1 ,SDichloropropane 2,2-Dichloropropane 1 ,1-Dichloropropene c-1,3-Dichloropropene t-1 ,SDichloropropene Ethylberzene 2-Hexanone lsopropylbenzene p-lsopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1 ,1 ,1 ,Z-Telrachloroethane 1, 1,2,2 -T et achlo roetha ne Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene 1, 1,1 -Trichloroethane 1, 1,2-Trichloro-1,2,2-Trifluoroethane 1, 1,2-Trichloroethane Trichloroethene Tri chlorofl uoromethane '1,2,3-Trichloropropane 1,2,4-Trimethylbenzene l,3,FTrimethylbenzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrooates: 1,2-Dichloroethaned4 1,4-Bromofluorobenzene Date Prepared Date/Time QC Batch lDClientNumber Dibromofluoromethane ToluenedS Parameter Acetone Berzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4€hlorotoluene Dibromochloromethane 1,2-DibromolChloropropane 1 ,2-Dibrornoethane Dibromomethane I ,2-Dichlorobenzene 1,3-Dichlorobenzene 1 ,4-Dichlorobenzene Di chlorod if luorometha ne 1,1-Dichloroethane 1,2-Dichloroethane 1 ,1-Dichloroethene c-1 ,2-Dichloroethene t-1 ,2-Dichloroethene 'l ,2-Dichloropropane Surrogates: Result RL 0.50 1.0 1.O 1.0 1.0 10 10 1.0 1.0 1.0 10 0.50 1.0 5.0 1.0 10 1.0 1.0 1.0 5.0 1.0 1.0 '1.0 1.0 1.0 1.0 1.0 0.50 1.0 1.0 1.0 1.0 Control Limits 80-132 80-'120 DF 1 1 1 1 I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I I Qual Qual Result RL DF ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 0.s0 1 ND 0.50 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 NDlO1 NDlO1 NDlO1 ND 1.0 1 ND 1.0 'l ND 1.0 1 ND 1.0 1 ND 1.0 I ND 1.0 I ND 1.0 1 NO 1.O 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 NDlO1 ND 5.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 0.50 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 REC (06) Control Limits 129 ffi-141 109 76-120 Qual ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 109 96 REC (0/6)Qual 03/30/10 16:00 0ryo5/10 12:.42 100'105L01Aqueous GC/MS CC 04105110TRIP BI-ANK 10{402136.8 RL - Reporting Limit , DF - Dilulion Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA92841-1427 ' TEL:(714) 895-5494 ' FAX: (714)894-7501 Page '10 of 31 =fr_3lscience E-nvironmental =-: - aboratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No: Preparation: Method: Units: 04t03t10 10-04-0213 EPA 5O3OB EPA 82608 ug/L Page 3 of 6Project: PG&E SLO / 1857021223.200.0002 Lab Sample Date/Time Qual Makix 1,2-Dichloroethane'd4 1,4-Bromof luorobenzene Date lnstrument prepared Dateffime QC Batch lDClientNumber Dibromofluoromethane Toluene-dB Parameter Acetone Benzene Bromoberzene Bromochloronethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon Disulfide Carbon Tetrachloride Chloroberzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4€hlorotoluene Dibromochloromethane 1,2- Dibrome.SChloropropane 1 ,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 'l ,SDichlorobenzene 1 ,4-Dichlorobenzene Dichlo rod if luorometha ne 1 ,1-Dichloroethane 1 ,2-Dichloroethane 1 ,1-Dichloroethene c-1 ,2-Dichloroethene t-1 ,2-Dichloroethene 1 ,2-Dichloropropane Surrooates: Result RL DF ND501 ND 0.50 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 NDlO1 NDlO1 ND 1.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND O.50 1 ND 1,0 1 ND 5.0 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 ND 10 1 ND 5.0 1 ND 1.0 I ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 0.50 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 REC (%) Conkol Limits 103 ffi-132 99 80-120 Parameter 1 ,$Dichloropropane 2,2-Dichloropropane 1 ,1-Dichloropropene c-1,3-Dichloropropene t-l,SDichloropropene Ethylbemene 2-Hexanone lsopropylberzene p-lsopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1, 1, 1,Z-Tetrachloroethane 1,1,2,2 -f etr achlo roetha ne Tetrachloroethene Toluene 1,2,3-Trichlorobenzene 1,2,4-Trichlorobenzene 1, 1,1 -Trichloroethane 1, 1,2-Trichloro-1,2,2-Trifluoroethane 1, 1,2-Trichloroethane Trichloroethene Tri chlorof luorometha ne 1,2,3-Trichloropropane 1,2, 4-Tri methylbenzene 1,3,$Trimethylbemene Vinyl Acetate Vinyl Chloride p/rn-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrogates: Result RL DF ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 0.50 1 ND 0.50 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.O 1 NDlO1 ND101 ND101 ND 1.0 1 ND '1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 NDlO1 ND 5.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 0.50 1 ND 1.0 I ND 1.0 1 ND 1.0 1 REC (o/o) Control Limits 126 80-141 106 76-120 Qual Qual Qual 03/31/10 Aqueous GC/MS CC 04lOSl10 '17i15 04/05/10 16:13 1044{)2't33-Aslo-1-15 100405L01 RL - Reporting Limit , DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA92841-1427 ' TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 8 of 31 alscience nvironmental ahoratories, lnc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Receivedr Work Order No Preparation: Method: Units: 04t03t10 10-04-0213 EPA 5O3OB EPA 8260B ug/L Page 1 of6Project: PG&E SLO / 1857021223.200.0002 Lab Sample Dateffime Matrix lnstrument Parameter l,SDichloropropane 2,2-Dichloropropane 1,1-Dichloropropene c-1,3- Dichloropropene t-l,SDichloropropene Ethylbenzene 2-Hexanone lsopropylbenzene p-l sopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1 ,1 , 1 ,2-Tetrachloroethane 1,1,2,2-T elr achloroethane Tetrachloroethene Toluene 1,2,3-T richloroberzene 1,2,4-Trichloroberzene 1, 1,1 -Trichloroethane 1, 1,2-Trichloro-1,2,2-Trifluoroethane 1,1,2-Trichloroethane Trichloroethene Tri chlorofl uoromethane 1,2,3-Trichloropropane 1,2,4-Trimethylbenzene 1,3,$Trimethylberzene Vinyl Acehte Vinyl Chloride p/nrXylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surroqates: 1,2-Dichloroethaned4 1,4-Bromof luorobenzene Date Dateffime Analwed QC Batch lDClientNumber Dibromofluoromethane TolueneiS Parameter Acetone Elenzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2€hlorotoluene 4€hlorotoluene Di bromochlorornethane 1,2- DibromolChloropropane 1 ,2-Dibronrcethane Dibrornomethane 1 ,2-Dichlorobenzene 1 ,$Dichlorobenzene 1 ,4-Dichlorobenzene Di chlorodif luoromethane 'l ,1-Dichloroethane 1 ,2-Dichloroethane 1 ,1 -Dichloroethene c-1 ,2-Dichloroethene t-1 ,2-Dichloroethene 1 ,2-Dichloropropane Surrogates: Result RL DF Qual ND501 ND 0.50 1 ND 1.0 1 ND 1.0 1 ND 1.0 I ND 1.0 1 NDlO1 ND101 ND 1.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 0.50 1 ND 1.0 1 ND 5.0 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 5.0 1 ND 1.0 'l ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 ND 0.50 1 ND 1.0 1 ND 1.0 1 ND '1 .0 1 ND 1.0 1 REc (%) Control Qual Limits 109 ffi-132 100 80-120 Result RL DF ND 1.0 1 ND 1.O 1 ND 1.0 1 ND 0.50 1 ND 0.50 1 ND 1.0 1 NDlO1 ND 1.0 I ND '1.0 I ND ,IO 1 ND101 ND ,IO 1 ND 1.0 1 ND 1.O 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 1.3 1.0 1 ND 1.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 1.0 1 ND 1.0 1 ND 10 'l ND 5.0 1 ND 1.0 1 ND 1.0 1 NDlO1 ND 0.50 1 ND 1.0 1 ND 1.0 1 1.2 1.0 1 REc (%) Control Limits 130 ffi-141 105 76-120 Qual Qual I I j ) 03/30/10 16:40 0405/10 100405L01 13t12 Aqueous GC/MS CC 04105t'l01044{.2't3-1-AsLo-2-15 RL - Reporting Limit , DF - Dilution Faclor , Qual - Qualifiers l *J 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 6 of 31 alscience nvironmental aboratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No Preparation: Method: 04t03t10 10-04-0213 EPA 5O3OB EPA 80158 (M) Page 2 of 2Project: PG&E SLO / 1857021223.200.0002 Lab Sample Date/Time Collected Date Date/Time Makix lnstrument Prepared Analged QC Batch lD Number Parameter TPH as Gasolirre Surroqates: 1,4-Bromof luoroberzene Result ND REC (o/o) 75 RL 50 Control Limits 3A-134 DF Qual Units ug/L Qual o3BOliO Aqueous GC 18 041051'10 16:00 04t05t10 '15:12 TRIP BI.ANK 10{4{)213€"A 100iOSBO1 Method Blank 099-124:t64,S91 N/A Aqueous GC 18 04105110 04t05t10 09:09 100'005801 Parameter TPH as Gasolire Surrooates: '1,4-Bromofl uoroberzene Result ND REc (%) 78 RL 50 Control Limits 38-1U DF Qual Units ug/L Qual RL - Reporting Limit , DF - Dilution Faclor Qual - Qualiliers 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501 Page 4 of 31 alscience nvironmental aboratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Project: PG&E SLO / 1857021223.200.0002 Date Received: Work Order No Preparation: Method: 04t03t10 10-04-0213 EPA 35508 EPA 80158 (M) Page 1. of 1 Lab Sample Date/Time Date Dateffime Matrix lnstrument Prepared Analged QC Batch lDClientNumber Comment(s): Parameter TPH as Diesel Surrooates: Decachlorobiphenyl Nu -The sample chromatographic pattern for TPH does not match the chromatographic pattern of the specified standard. Quantitation of the unknolvn hydrocarbon(s) in the sample \ /ras based upon the specified standard. Result RL DF Qual Units , 42O 5.0 1 mg/kg REC (o/o) Control Limiis Qual 115 61-145 03/31/10 18:00 04n6n0 05:52SLO-Waste Soil 10{4{213€"A 10011()5804Solid cC 49 04/05/10 Method Blank 099-12.275A,375 N/A Solid GC 49 04105110 04t06t10 01:26 100'105804 Parameter TPH as Diesel Surroqates: Decachlorobiphenyl Result ND REC (o/) 108 RL 5.0 Control Limits 61-145 DF Qual Qual Units mS/l1g RL - Reporting Limit DF - Dilution Factor Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714) 894-7501 Page 2 of 31 _+ fl.3!science L E-nvironmentalE-- aboratories, Inc. Analytical Report Stantec 3017 Kilgore Road, Suite 100 Rancho Cordova, CA 95670-6150 Date Received: Work Order No Preparation: Method: 04t03t10 10-04-0213 EPA 3510C EPA 80158 (M) Pagel of2Project: PG&E SLO / 1857021223.200.0002 Lab Sample Number Date/Time Collected Date Date/Time Matrix lnstrument Prepared Analped QC Batch lDClientNumber Parameter TPH as Diesel Surroqates: Decachlorobiphenyl Result 150 REC (%) 101 RL 50 Control Limits 68-1 40 DF Qual Units ug/L Qual 03/30/10 Aqueous GC 49 04/06/10 16:4O 04n7t10 04:15sLo-2-15 10{)4{213-1G 100lo6801A .! J sLo4.20 10{,4{,213-2€O3E1/10 Aqueous GC 49 04106110 14:50 o4n7n0 O4i29 100/l()6801A Parameter TPH as Diesel Surrogates: Decachlorobiphenyl Result 220 REC (%) 90 RL 50 Control Limits 6&140 OF Qual Units ug/L Qual sLo-l-15 10{)4{)213.3{)03/31/10 '|.7:15 Aqueous GC 49 04lOGl1O O4n7l10 1001196801A04:8 Ihrameter TPH as Diesel Surrooates: Decachlorobiphenyl Result 160 REC (0/6) 93 RL 50 Control Limits 68.'t40 DE Qual Units ug/L Qual I I ! SLO-WasteWater 10{4{2134G 03131/10 Aqueous GC 49 04106110 18:10 04t07t10 05:00 100/OGB01A Comment(s)r Parameter TPH as Diesel Surroqates: Decachlorobiphenyl -The sample chromatographic pattem of the unknown hydrocarbon(s) in the Result 44f,0 REC (0/6) 90 for TPH does not match the chromatographic paftern of the specified standard. Quantitation sample rnras based upon the specified standard. RL DF Qual Units 100 2 uglL Control Limits Qual 6&140 lJ I J RL - Reporling Limit , DF - Dilulion Factor , Qual - Qualmers l ..i 7440 Lincoln Way, Garden Grove, CA92841-1427 . TEL:(714) 895-5494 ' FAX: (714)894-7501