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HomeMy WebLinkAbout; Micro-tunneling Jefferson St/Arbuckle Pl; Micro-tunneling Jefferson St/Arbuckle Pl; 2002-01-01O SOIL EVALUATION/COMMUNITY MONITORING PROJECT: CITY OF CARLSBAD MICRO-TUNNELING OPERATION LOCATION: JEFFERSON STREET/ARBUCKLE PLACE CARLSBAD, CALIFORNIA JANUARY, 2002 PREPARED BY: DHK ENGINEERS, INC. (760) 747-9553 SOIL EVALUATION/COMMUNITY MONITORING Jefferson Street/Arbuckle flace JANUARY 2002 1. INTRODUCTION As part of the City of Carlsbad Capital Improvement Program, the Vista Sewer/ Storm Drain Project requires micro-tunneling operations through the City of Carlsbad. The micro-tunneling operation was selected as the construction method of choice due to the relative non-disruptive nature of the construction operation. The traditional method would be to cut-trench and backfill thus disrupting service throughout the City. The primary alignment is via Jefferson Street with several jacking pits located along Jefferson Street. The City of Carlsbad hired Steve Bubalo Construction as the prime contractor for the pipeline project. The initial micro-tunneling operation extended from Jefferson Street & Oaks Avenue to Jefferson Street and Grand Avenue without incident. In early December, the tunneling operator was moved to a jacking pit located at Jefferson Street & Arbuckle Place (2700 block of Jefferson Street). The jacking operation was to proceed south along Jefferson Street to the Grand Avenue terminus. On December 12, 2001, during the tunneling operation the micro-tunneling staff noticed odor. The site safety manager was contacted and ambient air monitoring using a PID was completed. The City of Carlsbad Construction Manager was notified and soil and slurry samples were immediately gathered and sent a local certified laboratory (HP Labs). Tunneling operations were terminated pending laboratory results and further direction from outside consultants. On December 13, 2001, laboratory results were provided indicating relatively low levels of volatile organic compounds and total hydrocarbons. Although the soil and water results were below site assessment levels, and the odor may have been from a localized pocket, it was recommended to complete and implement a Community Health & Safety Plan as a conservative public protection step by the City. The Community Health & Safety Plan will be in accordance with the Department of Environmental Health- Site Assessment Manual (SAM) guidelines. 2. TUNNELING OPERATION On December 17, 2001, the tunneling operation continued with the Community Health & Safety Plan (Appendix A) in place, Contractor H&S training, and additional jacking pit ventilation equipment provided. DHK Engineers provided community ambient air monitoring at 11 perimeter locations using an Organic Vapor Analyzer (OVA) during the entire day. The contractor's Site Safety Supervisor monitored work safety areas during the day. The jacking operation installed approximately 50 feet of pipe (sticks 9-10-11). All soil was trucked to the spoil pile area designated as temporarily storage until a soil characterization is completed. The community monitoring field report is provided in Appendix B. 3. SOIL EVALUATION The soil removed from the tunneling operation was trucked to a City of Carlsbad Stockyard located adjacent to the railroad tracks along the south-end (off of Taramack) of the City of Carlsbad Project. The soil identified as "unknown odor" was isolated from other stockpiles. The special stockpile had a visqueen base and visqueen cover at all times. Prior to final disposition of DHK ENGINEERS, INC J Project No. 3182/3528 SOIL EVALUATION/COMMUNITY MONITORING Jefferson Street/Arbuckle Place JANUARY 2002 the soil, spoil pile sampling will be conducted in accordance with the SAM using EPA 8015 full range analytical methods and Method 8260B. The sample ID is associated with the pipe segment number. Table 1 summaries the results of the soil analysis. Table 1 Soil Pile Analytical Results Pipe ID S-13 S-12 S-9 S-8 S-17 S-15 Total Petroleum Hydrocarbons (TPH) mg/kg (ppm) diesel- EPA- 8015 21.38 54.05 20.56 60.7 ND ND Volatile Organic Compounds - EPA 8260A ND all compounds ND all compounds ND all compounds ND all compounds ND all compounds ND all compounds ND= Non detection Based on the results, soil piles # S-15 and S-17 were given unrestricted use. Soil piles S-13 and S-9 were to be used within any excavation at least 1 foot below grade. Soil piles S-8 and S-12 are to be placed back in the jacking pit area used as sub grade and placed within 2 feet of finished grade. The analytical results, chain-of-custody form area provided Appendix C. DHK ENGINEERS, INC Project No. 3182/3528 o oSOIL EVALUATION/COMMUNITY MONITORING Jefferson Street/Arbuckle Place JANUARY 2002 APPENDIX A COMMUNITY HEALTH & SAFETY PLAN DHK ENGINEERS, INC 3 Project No. 3182/3528 o o PROJECT: CITY OF CARLSBAD MICRO-TUNNELING OPERATION LOCATION: JEFFERSON STREET/ARBUCKLE PLACE CARLSBAD, CALIFORNIA DECEMBER 13, 2001 PREPARED BY: DHK ENGINEERS, INC. (760) 747-9553 COMMUNITY HEALTH & SAFETY PLAN Jefferson Street/ArbuckleMace DECEMBER 2001 1. INTRODUCTION As part of the City of Carlsbad Capital Improvement Program, the Vista Sewer/ Storm Drain Project requires micro-tunneling operations through the City of Carlsbad. The micro-tunneling operation was selected as the construction method of choice due to the relative non-disruptive nature of the construction operation. The traditional method would be to cut-trench and backfill thus disrupting service throughout the City. The primary alignment is via Jefferson Street with several jacking pits located along Jefferson Street. The City of Carlsbad hired Steve Bubalo Construction as the prime contractor for the pipeline project. The initial micro -tunneling operation extended from Jefferson Street & Oaks Avenue to Jefferson Street and Grand Avenue without incident. In early December, the tunneling operator was moved to a jacking pit located at Jefferson Street & Arbuckle Place (2700 block of Jefferson Street). The jacking operation was to proceed south along Jefferson Street to the Grand Avenue terminus. On December 12, 2001, during the tunneling operation the micro-tunneling staff noticed odor. The site safety manager was contacted and ambient air monitoring using a PID was completed. The City of Carlsbad Construction Manager was notified and soil and slurry samples were immediately gathered and sent a local certified laboratory (HP Labs). Tunneling operations were terminated pending laboratory results and further direction from outside consultants. On December 13, 2001, laboratory results were provided indicating relatively low levels of volatile organic compounds and total hydrocarbons. Although the soil and water results were below site assessment levels, and the odor may have been from a localized pocket, it was recommended to complete and implement a Community Health & Safety Plan as a conservative public protection step by the City. The Community Health & Safety Plan will be in accordance with the Department of Environmental Health- Site Assessment Manual (SAM) guidelines. 2. SITE LOCATION AND CONTACT INFORMATION LOCATION: Jefferson Street & Arbuckle Place (2700 block of Jefferson Street), Carlsbad, CA 92008 OWNER: City of Carlsbad - Mark Sullivan (760) 720-9723 telephone, (760) 525-8652 cell CONTRACTOR: Steve Bubalo Construction Company- Phil Kang (760) 720-1657 telephone, (626) 255-8520 cell Elmore Pipe- Art McCoia (818) 398-5076 HOURS OF CONSTRUCTION: 0700-1900 duration 4-6 weeks (December 1, 2001-January 15, 2002) DHK ENGINEERS, INC ] Project No. 3182/3528 oCOMMUNITY HEALTH & SAFETY PLAN Jefferson Street/Arbuckle Place DECEMBER 2001 3. PLOT PLAN The tunneling pit and soil separation facility is located in close proximity of residential and commercial. The jacking pit is within 50 feet of a business (2777 Jefferson Street) and the soil separation is within 25 feet of the closet resident (750 Arbuckle Place). Figure 1 illustrates the potential receptors in the immediate area. Local traffic along Jefferson Street is within 10 feet of the jacking pit. 4. EVALUATION OF POTENITAL PUBLIC EXPOSURE TO HAZARDS The City of Carlsbad as part of the pre-design effort evaluated the potential exposure to the receptors including noise, dust and physical hazards. In review of the alignment along Jefferson Street, no identified UST facilities were within the zone of influence. Due to noise, dust and physical hazards, micro tunneling was selected as the most environmentally "friendly" construction technique. Little soil disruption would be required and the noise locations would be centralized allowing sound attenuation provisions to be implemented. The jacking pit operations has primarily two areas which the soil / slurry is exposed to the environment. The jacking pit pushes a 20-foot segment of pipe through the opening bore by the jacking device. Slurry is used to convey the soil from the tunnel to the soil separation unit. The slurry is dewatered and the soil is removed and disposed, and the water reused in the boring operation. During each pipe segment set-up, the slurry lines are uncoupled and re-attached. During the re- attachment process some of the slurry water is discharged to the jacking pit sump. If hydrocarbons were present, the hydrocarbons would potentially off-gas within the jacking pit area. Worker awareness and adequate personnel protective equipment is required by OSHA. The worker safety requirements are not part of the PLAN. The jacking pit floor is approximately 10 feet below street elevation and the public could be exposed if vapors were present in sufficient quantity as to fill the pit. The slurry separation area removes the soil from the boring slurry. If the slurry comes into contact with the contaminated soil, the potential exists of conveying the contamination via to the slurry to the soil separation facility. The slurry separation facility is adjacent to southwest corner of Jefferson Street and Arbuckle Place. The slurry separation facility is partially shrouded by a sound blanket to abate the noise. 4. MONITORING EQUIPMENT The City/Contractor will provide an on-site site safety supervisor. The Site Safety Supervisor (SSS) will be equipped with a Photo lonization Detector (PID) for monitoring VOC and hydrocarbon related compounds. The PID will be calibrated daily and the calibration recorded. Prior to start of work, the SSS will conduct a perimeter survey. Upon start-up and within the first 60-minutes, the SSS will conduct a follow-up survey. A survey will be completed once an hour throughout the day for project documentation. DHK ENGINEERS, INC ? Project No. 3182/3528 COMMUNITY HEALTH & SAFETY PLAN Jefferson Street/Arbuckle Hace DECEMBER 2001 The pit perimeter will be monitored during the slurry line re-attachment process. The SSS will have the authority to stop traffic along Jefferson Street if jacking pit vapors are present. The records will be maintained and made available for on-site review at the request of Department of Environmental Health or other regulatory agencies. 5. CONTROL METHODS a. Site Security: The construction site will be fenced to restrict access around the jacking pit and slurry separation facility. Local traffic will be restricted to the fullest extent possible. b. Vapors/Odors: Vapor monitoring will the generation of VOC latent air. Air dispersion fans will be located within the jacking pit. The slurry separation facility is partially enclosed by a sound blanket. The soil will removed from the site and stock piled in a secure location downwind of receptors. c. Dust: The construction process minimizes the potential dust generation and dispersion. The soil (moist condition) is trucked to a stockpile area and covered with visqueen. The equipment is washed down each evening prior to departing the site. d. Noise: A noise assessment, sound attenuation and site certification is in place in accordance with the City Contract specifications. e. Open Excavation: The jacking pit is approximately 15' wide by 30' long by 10' deep located in the southbound lane of Jefferson Street. The jacking pit was installed in early December and is properly secured. f. Stockpiled Soil: The soil removed from the tunneling operation is trucked to a City of Carlsbad Stockyard located adjacent to the railroad tracks along the south-end (off of Taramack)of the City of Carlsbad Project. The soil identified as "unknown chemical odor" will be isolated from other stockpiles. The special stockpile will have a visqueen base and visqueen cover at all times. Prior to final disposition of the soil, spoil pile sampling will be conducted in accordance with the SAM using EPA 8015 full range analytical methods. 6. SITE SAFETY MANAGER City of Carlsbad - Mark Sullivan (760) 720-9723 telephone, (760) 525-8652 cell Contractor: Steve Bubalo Construction Company- - Elmore Pipe- DHK ENGINEERS, INC 3 Project No. 3182/3528 o oCOMMUNITY HEALTH & SAFETY PLAN Jefferson Street/Arbuckle Place DECEMBER 2001 7. EMERGENCY PLANNING The construction site is equipped with several cellular phones with fire department contact numbers: 911 In the event of a large vapor release or liquid pooling, the tunneling operation will immediately stop. Traffic along Jefferson Street will be halted and the Contractor shall go door to door within one block notifying the residences or business owners of the potential threat. The SSS will contact the fire department. 8. PUBLIC NOTIFICATION Prior to the construction of the jacking pit, the Contractor notified the surrounding area of the construction project and provided each residence and business a point of contact. A revised Public Notification Form will be developed and distributed to the surrounding residents and local businesses. The PUBLIC NOTICE will be mounted on the project perimeter along each fence. DHK ENGINEERS, INC 4 Project No. 3182/3528 o oSOI t EVALUATION/COMMUNITY MONITORING Jefferson Street/Arbuckle Place JANUARY 2002 APPENDIX B COMMUNITY AMBIENT AIR MONITORING DHK ENGINEERS, INC 4 Project No. 3182/3528 CITY OF CARLSBAD - MICRO-TUNNELING FIELD REPORT COMMUNITY HEALTH & SAFETY MONITORING Datefj^KLi^ 7x>n | On Site:o&T3O Units: -CTO/VL *. ji^WeJimj^ Location # 1 2 3 4 5 6 7 8 9 10 11 Test #1 0830o.o o.oo.o o -c>o >iO- o £)• O Ou 0 <3< O O-O O-O ~TT;UKyc Location # 1 2 3 4 5 6 7 8 9 10 11 Test #8 1510 A, A /•) , A /5 • 1 O -O £ • 1 Q 'r\ '"2~ ft < r> 0, 0 6-0 Weather Conditions Offsite: l^ff-o : GXjux^ <i.Wic^ i^M^^Co-^^ Field Personnel: K'K^Q / r^j6u«-s/^ 'Instrumentation: OI//4 Regulatory Visitors: NJtf-Nb" ^U*^J2,4"o^4^ : ~ Zo-Zfpo*. Test #2 1125 C~> .0 o, or> r> n.D &Oo.o O- O0,O O.O O.(D ft.O Test #3 1225 Ci >& O.C5 rj .O | O -2» rvooo A- O O-D 0.2^ Test #4 1245 O >C5 O-i 0-0 o.o O-ll 0.2- ^ . G r>.."^> O -2-. O-O O.C, Test #5 1310 n.O n,4- O- 6n.CiO-^ Q. 10-0 CO-? >o<^ ^.Test #9 1540 A.o fS G C) -O <D-Do 4^ r-> /L- (O- C> o r> & ,\ 0-0 Test #10 1610 n • o ft oft O1^o.D A •£> A . 2>»i n,C) 0.0 0.0 Test #11 1720o> o^ AA-I n V L) * 'r> - O 0 ,2. S*) .?o.o 0- 0o - \ Test #12 1755 6. o rv (5> O -<9 O- n 0. 1 ^ / n <o 0.0 o-OO-O Test #6 1430 O- () n -ft n.O (3,0 ±' 0-2. O- 2. rt -3 A, ^ rt -2^ Test #7 1450 &•& f\~\ O*rt- , ) A- 2- 0-2, 6- Ir\ -Zs o-O 0-0 xu— OPP" s^' Test #13 1825 O.O fi .C"> A,. 0 ^"). o A, f A -O 0- O 0.0 0.0o.n Test #14 1850 A. O O- O O. 0n. 0 A, / Q- 6 a- O n.On. o 0-0 o o FIELD NOTES: DECEMBER 17, 2001 T-d- £?SO-Q O#>"P-I I /53-0- y<f 4«H (23 (Wa^^ rJ^JU^P CD , / CA^-Q-g. /\re+j^\ &Cfr_j-. O o JOB_ DHK ENGINEER 1851 Skyhill Place ESCONDIDO, CA 92026 (760) 747-9553 SHEET NO CALCULATED BY_ CHECKED BY _ SCALE DATE. DATE. o oSOIL EVALUATION/COMMUNITY MONITORING Jefferson Street/Arbuckle Place JANUARY 2002 APPENDIX C SOIL ANALYTICAL DATA DHK ENGINEERS, INC 5 Project No. 3182/3528 o HERE'S INFORMATION yOU REQUESTEcl Date and Time: To: Company: Fax No.: From: Company: Phone No.: Fax No.: No. of Pages: Tuesday, January 01 , 2002 Mark Sullivan, Rick Wright City of Carlsbad (760) 720-1079 Donald King DHK Engineers, Inc. (760) 747-9553 (760) 747-9553 1, including cover Message: Mark and Rick: Per our discussions, we received the laboratory results from the six soil samples taken on December 20, 2001. Piles S-8 and S-12 are to be placed back in jacking pit within 2 feet of surface. Both piles are greater than 50-ppm diesel but less than 100-ppm (Method EPA-8015M). Piles S-13 and S-9 are to be placed within an excavation anywhere on the project- > 1 foot below surface. Both piles are between 25-ppm and 50-ppm. Piles S-15 and S-17 are unrestricted as both were non-detects! ALL SAMPLES WERE NON-DETECT FOR ALL CHEMICALS EPA- 8260B! (Excellent!) I'll summarize the laboratory results, community monitoring and other project related information in a letter report format for your files. Thanks, Donald King dking@nctimes.net alscience o nvironmental „ aboratories, Inc. December 28, 2001 Don King DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Subject: Calscience Work Order No.: 01 -12-1126 Client Reference: DHK122001-31 Dear Client: Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 12/20/01 and analyzed in accordance with the attached chain-of-custody. Unless otherwise noted, all analytical testing was accomplished in accordance with the guidelines established in our Quality Assurance Program Manual, applicable standard operating procedures, and other related documentation. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety. If you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, ince Environmental Michael[J. Crisostomo Laboratories, Inc. Quality Assurance Manager Robert Stearns Project Manager 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714)894-7501 alscience o o nvironmental aboratories, Inc.ANALYTICAL REPORT DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Attn: Don King RE: DHK122001-31 Comment(s): All concentrations Analyte Date Sampled: Date Received: Date Extracted: Date Analyzed: Work Order No.: Method: Page 1 of 3 are reported in mg/kg (ppm) as diesel. Concentration 12/20/01 12/20/01 12/22/01 12/23/01 01-12-1126 EPA 801 5M Reportable Limit Sample Number: S-13 <C12 C13-C22 C23-C44 Total TPH <C44 Surrogates: Decachlorobiphenyl ND 21.38 ND 21.38 REC(%) 137 Control Limits 45-149 Sample Number: S-12 <C12 C13-C22 C23-C44 Total TPH <C44 Surrogates: Decachlorobiphenyl 5.55 48.50 ND 54.05 REC(%) 128 Control Limits 45-149 Sample Number: S-9 <C12 C13-C22 C23-C44 Total TPH <C44 Surrogates: Decachlorobiphenyl ND 20.56 ND 20.56 REC(%) 133 Control Limits 45-149 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714)894-7501 ,alscience o o nvironmental aboratories, Inc.ANALYTICAL REPORT DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Attn: Don King RE: DHK122001-31 Comment(s): All concentrations Analyte Date Sampled: Date Received: Date Extracted: Date Analyzed: Work Order No.: Method: Page 2 of 3 are reported in mg/kg (ppm) as diesel. Concentration 12/20/01 12/20/01 12/22/01 12/23/01 01-12-1126 EPA 801 5M Reportable Limit Sample Number: S-8 <C12 C13-C22 C23-C44 Total TPH <C44 Surrogates: Decachlorobiphenyl 5.50 55.20 ND 60.7 REC(%) 130 Control Limits 45-149 Sample Number: S-17 <C12 C13-C22 C23-C44 Total TPH <C44 Surrogates: Decachlorobiphenyl ND ND ND ND REC(%) 123 Control Limits 45-149 Sample Number: S-15 <C12 C13-C22 C23-C44 Total TPH <C44 Surrogates: Decachlorobiphenyl ND ND ND ND REC(%) 129 Control Limits 45-149 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714) 894-7501 ,alscience o nvironmental m aboratories, Inc.ANALYTICAL REPORT DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Attn: Don King RE: DHK122001-31 Comment(s): All concentrations are Analyte Sample Number: Method Blank <C12 C13-C22 C23-C44 Total TPH <C44 Surrogates: Decachlorobiphenyl reported Date Sampled: Date Received: Date Extracted: Date Analyzed: Work Order No.: Method: Page 3 of 3 in mg/kg (ppm) as diesel. Concentration ND ND ND ND REC(%) 112 N/A N/A 12/22/01 12/23/01 01-12-1126 EPA 801 5M Reportable Limit 5 Control Limits 45-149 ND denotes not detected at indicated reportable limit. Each sample was received by CEL chilled, intact, and with chain-of-custody attached. 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714)894-7501 s—alscience o o ANALYTICAL REPORT nvironmental aboratories, Inc. DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Client Sample Number :S-13 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-Chlorotoluene 4-Chlorotoluene Dibromochloromethane 1 ,2-Dibromo-3-Chloropropane 1 ,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 1 ,3-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 Surrogates: Dibromofluoromethane 1 ,4-Bromofluorobenzene Lab Sample Number 01-12-1126-1 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 REG (%) 92 97 EL DF 50 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 10 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 Control Limits 80-120 74-121 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg Qual Date Received: Work Order No: Preparation: Method: Date Collected Matrix 12/20/01 Solid Parameter 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene c-1 ,3-Dichloropropene t-1 ,3-Dichloropropene Ethylbenzene 2-Hexanone Isopropylbenzene p-lsopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1 ,1 ,1 ,2-Tetrachloroethane 1 ,1 ,2,2-Tetrachloroe thane Tetrachloroethene Toluene 1 ,2,3-Trichlorobenzene 1 ,2,4-Trichlorobenzene 1 ,1 ,1-Tri chloroethane 1 ,1 ,2-Trichloroethane Trichloroethene Trichlorofluoromethane 1 ,2,3-Trichloropropane 1 ,2,4-Trimethylbenzene 1 ,3,5-Trimethylbenzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrogates: Toluene-d8 12/20/01 01-12-1126 N/A EPA 8260B Page 1 of 7 Date Prepared N/A 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 REG (%) 97 Date Analyzed 12/21/01 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 5.0 50 5.0 5.0 5.0 50 5.0 5.0 5.0 5.0 Control Limits 81-117 QC Batch ID 122101AS DF Qual 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 1 1 1 1 1 1 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714)894-7501 .a/science o o ANALYTICAL REPORT nvironmental aboratories, Inc. DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Client Sample Number S-12 ^arameter Acetone Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroe thane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene Dibromochloromethane 1 ,2-Dibromo-3-Chloropropane 1 ,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 1 ,3-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 Surrogates: Dibromofluoromethane 1 ,4-Bromofluorobenzene Lab Sample Number 01-12-1126-2 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 REG (%) 92 97 EL 50 5.0 5.0 5.0 5.0 5.0 5.0 50 5.0 5.0 5.0 50 5.0 5.0 5.0 5.0 5.0 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 80-120 74-121 BE 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 1 1 1 1 1 1 1 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg Qual Date Received: Work Order No: Preparation: Method: Date Collected Matrix 12/20/01 Solid Parameter 1 ,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene c-1 ,3-Dichloropropene t-1 ,3-Dichloropropene Ethylbenzene 2-Hexanone Isopropylbenzene p-lsopropyltoluene 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-Trichloroethane Trichloroethene Trichlorofluoromethane 1 ,2,3-Trichloropropane 1 ,2,4-Trimethyl benzene 1 ,3,5-Trimethylbenzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyi-t-Butyl Ether (MTBE) Surrogates: Toluene-d8 12/20/01 01-12-1126 N/A EPA 8260B Page 2 of 7 Date Prepared N/A 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 REG (%) 97 Date Analyzed 12/21/01 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 5.0 50 5.0 5.0 5.0 50 5.0 5.0 5.0 5.0 Control Limits 81-117 QC Batch ID . 1221 01 AS DF Qual 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 1 1 1 1 1 1 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714)894-7501 alscience o o ANALYTICAL REPORT nvironmental aboratories, Inc. DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Client Sample Number S-9 Parameter Acetone Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butyl benzene sec-Butylbenzene lert-Butyl benzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroe thane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene Dibromochloromethane 1 ,2-Dibromo-3-Chloropropane 1 ,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 1 ,3-Dichlorobenzene 1 ,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroethane 1 ,2-Dichloroe thane 1 , 1 -Dichloroethene c-1 ,2-Dichloroethene t-1 ,2-Dichloroethene 1 ,2-Dichloropropane Surrogates: Dibromofluoromethane 1 ,4-Bromofluorobenzene Lab Sample Number 01-12-1126-3 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 REG (%) 92 98 RL 50 5.0 5.0 5.0 5.0 5.0 5.0 50 5.0 5.0 5.0 50 5.0 5.0 5.0 5.0 5.0 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 80-120 74-121 BE 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 1 1 1 1 1 1 1 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg Qual Date Received: Work Order No: Preparation: Method: Date Collected Matrix 12/20/01 Solid Parameter 1 ,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene c-1 ,3-Dichloropropene t-1 ,3-Dichloropropene Ethylbenzene 2-Hexanone Isopropylbenzene p-lsopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propyl benzene 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-Trichloroethane Trichloroethene Trichlorofluoromethane 1 ,2,3-Trichloropropane 1 ,2,4-Trimethylbenzene 1 ,3,5-Trimethylbenzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrogates: Toluene-d8 12/20/01 01-12-1126 N/A EPA 8260B Page 3 of 7 Date Prepared N/A 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 REG (%) 96 Date Analyzed QC Batch ID 12/21/01 122101AS RL DF Qual 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 50 1 50 1 50 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 10 1 5.0 1 5.0 1 • 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 5.0 1 Control Qual Limits 81-117 Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714)894-7501 ,alscience o o ANALYTICAL REPORT '< nvironmental aboratories, Inc. DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Client Sample Number S-8 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-Chlorotoluene 4-Chlorotoluene Dibromochloromethane 1 ,2-Dibromo-3-Chloropropane 1 ,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 1 ,3-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 Surrogates: Dibromofluoromethane 1 ,4-Bromofluorobenzene Lab Sample Number 01-12-1126-4" : 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 REG (%) 90 97 EL DF 50 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 10 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 Control Limits 80-120 74-121 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg Qual Date Received: Work Order No: Preparation: Method: Date Collected Matrix 12/20/01 Solid Parameter 1 ,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene c-1 ,3-Dichloropropene t-1 ,3-Dichloropropene Ethylbenzene 2-Hexanone Isopropylbenzene p-lsopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1,1,1 ,2-Tetrachloroethane 1 ,1 ,2,2-Tetrachloroe thane Tetrachloroethene Toluene 1 ,2,3-Trichlorobenzene 1 ,2,4-Tri Chlorobenzene 1 ,1 ,1-Trichloroethane 1 ,1 ,2-Trichloroe thane Trichloroethene Trichlorofluoromethane 1 ,2,3-Trichloropropane 1 ,2,4-Trimethyl benzene 1 ,3,5-Trimethylbenzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrogates: Toluene-d8 12/20/01 01-12-1126 N/A EPA 8260B Page 4 of 7 Date Prepared N/A 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 REG (%) 96 Date Analyzed •• QC Batch ID 12/21/01 122101AS; RL DF Qual 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 50 1 50 1 50 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 10 1 5.0 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 5.0 1 Control Qual Limits 81-117 Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 alscience o o ANALYTICAL REPORT nvironmental aboratories, Inc. DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Client Sample Number S-17 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-Chlorotoluene 4-Chlorotoluene Dibromochloromethane 1 ,2-Dibromo-3-Chloropropane 1 ,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 1 ,3-Dichlorobenzene 1 ,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroe thane 1 ,2-Dichloroethane 1,1-Dichloroethene c-1 ,2-Dichloroethene t-1 ,2-Dichloroethene 1 ,2-Dichloropropane Surrogates: Dibromofluoromethane 1 ,4-Bromofluorobenzene Lab Sample Number 01-12-1126-5 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 REG (%) 90 96 RL 50 5.0 5.0 5.0 5.0 5.0 5.0 50 5.0 5.0 5.0 50 5.0 5.0 5.0 5.0 5.0 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 80-120 74-121 DF 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 1 1 1 1 1 1 1 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg Qual Date Received: Work Order No: Preparation: Method: Date Collected Matrix 12/20/01 Solid Parameter 1 ,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene c-1 ,3-Dichloropropene t-1 ,3-Dichloropropene Ethylbenzene 2-Hexanone Isopropylbenzene p-lsopropyltoluene Methylene Chloride 4-Methyl-2-Pentanone Naphthalene n-Propylbenzene Styrene 1,1,1 ,2-Tetrachloroethane 1 ,1 ,2,2-Tetra chloroethane Tetrachloroethene Toluene 1 ,2,3-Trichlorobenzene 1 ,2,4-Trichlorobenzene 1,1,1-Trichloroethane 1 ,1 ,2-Trichloroethane Trichloroethene Trichlorofluoromethane 1 ,2,3-Trichloropropane 1 ,2,4-Trimethyl benzene 1 ,3,5-Trimethylbenzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrogates: Toluene-d8 12/20/01 01-12-1126 . N/A EPA 8260B Page 5 of 7 Date Prepared N/A 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 REG (%) 96 Date Analyzed 12/21/01 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 5.0 50 5.0 5.0 5.0 50 5.0 5.0 5.0 5.0 Control Limits 81-117 QC Batch ID 1221 01 AS DF Qual 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 1 1 1 1 1 1 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714) 894-7501 _ ^alscience Environmental laboratories, o Inc. O ANALYTICAL REPORT DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Client Sample Number S-15 Parameter Acetone Benzene Sromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene :ert-Butyl benzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene Dibromochloromethane 1 ,2-Dibromo-3-Chloropropane 1 ,2-Dibromoe thane Dibromomethane 1 ,2-Dichlorobenzene 1 ,3-Dichlorobenzene 1 ,4-Dichlorobenzene Dichlorodifluoromethane 1,1-Dichloroe thane 1 ,2-Dichloroethane 1,1-Dichloroethene c-1 ,2-Dichloroethene t-1 ,2-Dichloroethene 1 ,2-Dichloropropane Surrogates: Dibromofluoromethane 1 ,4-Bromofluorobenzene Lab Sample Number 01-12-1126-6 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 (%) 92 100 RL DF 50 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 10 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 Control Limits 80-120 74-121 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg Qual Date Received: Work Order No: Preparation: Method: Date Collected Matrix 12/20/01 Solid Parameter 1,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene c-1 ,3-Dichloropropene t-1 ,3-Dichloropropene Ethylbenzene 2-Hexanone Isopropylbenzene p-lsopropyltoluene 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-Trichloroethane Trichloroethene Trichlorofluoromethane 1 ,2,3-Trichloropropane 1 ,2,4-Trimethyl benzene 1 ,3,5-Trimethyl benzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrogates: Toluene-d8 12/20/01 01-12-1126 N/A EPA 8260B Page 6 of 7 Date Prepared N/A 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 REC (%) 97 Date Analyzed; QC Batch ID 12/21/01 122101AS RL DF Qual 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 50 1 50 1 50 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 5.0 1 10 1 5.0 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 50 1 5.0 1 5.0 1 5.0 1 5.0 1 Control Qual Limits 81-117 Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714)894-7501 ,alscience o o ANALYTICAL REPORT nvironmental aboratories, Inc. DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 2200 1-31 Client Sample Number Method Blank Parameter Acetone Benzene Bromobenzene Bromochloromethane Bromodichloromethane Bromoform Bromomethane 2-Butanone n-Butylbenzene sec-Butylbenzene tert-Butylbenzene Carbon Disulfide Carbon Tetrachloride Chlorobenzene Chloroe thane Chloroform Chloromethane 2-Chlorotoluene 4-Chlorotoluene Dibromochloromethane 1 ,2-Dibromo-3-Chloropropane 1 ,2-Dibromoethane Dibromomethane 1 ,2-Dichlorobenzene 1 ,3-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 Surrogates: Dibromofluoromethane 1 ,4-Bromofluorobenzene Lab Sample Number 099-10-005-2,312 Result ND ND ND ND ND ND 5.2 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 (%) 95 96 RL 50 5.0 5.0 5.0 5.0 5.0 5.0 50 5.0 5.0 5.0 50 5.0 5.0 5.0 5.0 5.0 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 80-120 74-121 BE 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 1 1 1 1 1 1 1 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg Qual Date Received: Work Order No: Preparation: Method: Date Collected Matrix N/A Solid Parameter 1 ,3-Dichloropropane 2,2-Dichloropropane 1,1-Dichloropropene c-1 ,3-Dichloropropene t-1 ,3-Dichloropropene Ethylbenzene 2-Hexanone Isopropylbenzene p-lsopropyltoluene 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-Trichloroe thane 1 ,1 ,2-Trichloroethane Trichloroethene Trichlorofluoromethane 1 ,2,3-Trichloropropane 1 ,2,4-Trimethylbenzene 1 ,3,5-Trimethyl benzene Vinyl Acetate Vinyl Chloride p/m-Xylene o-Xylene Methyl-t-Butyl Ether (MTBE) Surrogates: Toluene-d8 12/20/01 01-12-1126 N/A EPA 8260B Page 7 of 7 Date Prepared N/A 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 REC (%) 96 Date Analyzed 12/21/01 EL 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 5.0 50 5.0 5.0 5.0 50 5.0 5.0 5.0 5.0 Control Limits 81-117 QC Batch ID 122101AS DF Qual 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 1 1 1 1 1 1 Qual Units ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg ug/kg RL - Reporting Limit , DF - Dilution Factor , Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714) 894-7501 ,alscience o nvironmental aboratories, Inc. Quality Control - Spike/Spike Duplicate DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Quality Control Sample ID 01 -1 2-0808-20 , .1 ; ; .".-l^. , ;w -, Date Received: Work Order No: Preparation: Method: Date Matrix Instrument Prepared Solid GC15 12/22/01 12/20/01 01-12-1126 Ext. + D/l TPH - Carbon Range Date MS/MSD Batch Analyzed Number 12/23/01 ;;,,01, 122205ms Parameter TPH as Diesel MS %REC 106 MSP %REC 97 %REC CL 49-139 RPD RPDCL 0-28 Qualifiers 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 alscience nvironmental aboratories, Inc. o o Quality Control - Laboratory Control Sample DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Quality Control Sample ID Matrix 098-03-002-1,527 Solid 3arameter TPH as Diesel Date Received: Work Order No: Preparation: Method: Instrument Date Analyzed GC15 12/23/01 Cone Added Cone Recovered 400 380 12/20/01 01-12-1126 Ext. + D/l TPH - Carbon Range Lab File ID LCS Batch Number 008F0101 01122205sa %Rec %Rec CL Qualifiers 94 65-124 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714) 894-7501 alscience o nvironmental aboratories, Inc. Quality Control - Spike/Spike Duplicate DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Quality Control Sample ID S-13 Date Received: Work Order No: Preparation: Method: Date Matrix Instrument Prepared Solid GC/MS M N/A 12/20/01 01-12-1126 N/A EPA 8260B Date MS/MSD Batch Analyzed Number 12/21/01 0112112601 Parameter MS %REC MSP %REC %REC CL RPD RPDCL Benzene Carbon Tetrachloride Chlorobenzene 1,2-Dichlorobenzene 1,1-Dichloroethene Toluene Trichloroethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) 121 108 124 121 122 123 132 115 108 99 92 101 101 99 100 110 94 88 72-127 70-130 72-131 70-130 69-127 75-124 60-137 70-130 80-120 20 16 21 18 21 20 19 20 20 0-25 0-25 0-25 0-25 0-25 0-25 0-25 0-25 0-25 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714)895-5494 • FAX: (714)894-7501 a/science o o nvironmental aboratories, Inc. Quality Control - LCS/LCS Duplicate DHK Engineers 1851 Skyhill Place Escondido, CA 92026-0000 Project: DHK1 22001 -31 Quality Control Sample ID 099-10-005:2;312 Parameter Benzene Carbon Tetrachloride Chlorobenzene 1 ,2-Dichlorobenzene 1,1-Dichloroethene Toluene Trichloroethene Vinyl Chloride Methyl-t-Butyl Ether (MTBE) Tert-Butyl Alcohol (TBA) Diisopropyl Ether (DIPE) Ethyl-t-Butyl Ether (ETBE) Tert-Amyl-Methyl Ether (TAME) Date Received: Work Order No: Preparation: Method: Matrix '** '<fr "Solid , ,- Instrument ^GC/MS M Date Date Prepared Analyzed N/A . ,^|tet2/2;r/offlij^'. LCS %REC LCSD %REC %REC CL RPD 101 96 102 101 100 102 102 95 85 87 99 97 97 98 95 98 99 96 98 97 92 88 102 98 98 99 72-127 70-130 72-131 70-130 69-127 75-124 60-137 79-118 80-120 60-140 60-140 60-140 60-140 3 1 4 2 4 4 4 3 3 16 1 1 2 12/20/01 01-12-1126 N//* EPA 8260E LCS/LCSD Batch Number 122101AS; 4:; RPDCL Qualifiers 0-25 0-25 0-25 0-25 0-25 0-25 0-25 0-25 0-25 0-25 0-25 0-25 0-25 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714)894-7501 Qa/sc/ence GLOSSARY OF TERMS ANDvaUALIFIERS nvironmental aboratories, Inc. Work Order Number: 01 -12-1126 Qualifier Definition ND Not detected at indicated reporting limit. 7440 Lincoln Way, Garden Grove, CA 92841-1432 • TEL: (714) 895-5494 • FAX: (714)894-7501 o o n vtrr>r> mc-n t» •' at>oratorii2-~t. inc. WORK ORDER #: [71 H - [7| [71 [ I -- ] 1 -- _T ! -- , L___ — i >,.. Cooler j of SAMPLE RECEIPT FORM CLIENT: \4!P.Q Q DATE:. CM TEMPERATURE - SAMPLES RECEIVED BY: CALSCIENCE COURIER: Chilled, cooler with temperature blank provided. Chilled, cook r without temperature blank. vx Chilled and placed in cooler with wet ice. Ambient and placed in cooler with wet ice. Ambient temperature. _/z_ °C Temperature blank. LABORATORY (Other than Calscience Courier): "C Temperature blank, "C IR thermometer. Ambient temperature. lr.it.al. CUSTODY SEAL INTACT: Sample(s): Cooler: Mo (Not Intact)Not Applicable (N/A): «-^ initial: SAMPLE CONDITION: Chain-Of-Custody docurnent(s) received with samples Sample container label(s) consistent with custody papers.... Sample container(s) intact and good condition - Correct containers for analyses requested Proper preservation noted on sample label(s) VOA vial(s) free of headspace - Tedlar bag(s) free of condensation - COMMENTS: Chain of Custody Record Date:. I I 148 S. VinewSDd-Str-EscsfKMo, CA 92029 • ph 760.735.3208 • fax 760.735.2469 I I 432 N. Cedros Ave., Solana Beach, CA 92075 • ph 858.793.0401 • fax 858.793.0404 |~] 2373 208th Street Unit F-1, Torrance, CA 90501 • ph 310.782.2929 • fax 310.782.2798 HPL Project # Outside Lab: Client Project # "f^ rfoVL C_g» Location: Project Manager Sample Receipt Intact: D Yes D No Seal Intact: n Yes D NO n N/A Cold: D Yes D No N/A (Received on Site) inquis'hed by: ^Signature) ^Signature constitutes authorization to 'proceed with analysis and acceptance of condition on back Sample disposal instruction:I I Disposal @ $2.00 each | | Return to client | I P/c/<up 12/19/01 13:57 FAX 61953656 . 3D .U SECTIONS: SITE INVESTIGATION TECHNIQUES A. Sampling Protocol for Stockpiled Soil 1. Stockpiled soil that is designated tor disposal to a permitted hazardous waste or specified waste facility, or to a treatment/recycling facility, must be sampled and analyzed in accordance with the receiving facility's requirements. These facilities may havu different requirements than those presented below. Copies of all laboratory data and hazardous waste manifests, or other transportation documents generated for the soil treatment or disposal, must be submitted to DEH to demonstrate the proper handling and disposal of contaminated soil. 2. DEH will not accept composite soil samples for characterizing contaminated soil stockpiles. Only discrete samples will be accepted, because of the losses of volatile contaminants during sample handling and the dilution of non-volatile contaminants. 3. All stockpiled soil associated with an unauthorized release, spill, or other release that is not intended to be transported affsite to a permitted facility, or has not been previously characterized through in situ sampling, must be sampled in accordance with the protocol outlined below. Tills protocol provides a uniform approach for demonstrating the contaminant level within a soil mass. Prior approval must be obtained from DEH and the RWQCB for off-site transport or reuse on-site of any soil associated with an unauthorized release, spill, or other release, including soil taken from areas of the site outside of the spill or release. 4. Procedures in EPA Publication SW-846 provide a method for determining the mean concentration of a given contaminant within a soil mass and the appropriate number of samples necessary to calculate this mean to within a specified confidence level. Initial sampling should generate a minimum number of samples/analyses as described below. Additional sample analyses may be required to meet the confidence levels given in SW846; therefore, archiving of samples may be appropriate. Archived samples must be appropriately preserved and analyzed within the maximum holding time specified In SW-846. The minimum number of discrete samples initially required is given below: • Stockpiles less than 10 cubic yards: a minimum of two (2) samples must be collected, one from each half of the stockpile. Select sample points randomly within each half. • Stockpiles from 10-20 cubic yards: a minimum of three (3) samples must be collected, one from each third of the stockpile. Select sample points randomly within each third. • Stockpiles from 20-100 cubic yards: a minimum of four (4) samples must be collected, one from each quarter of the stockpile. Select sample points randomly within each quarter. • Stockpiles from 100-500 cubic yards: a minimum of one (1) sample for each 25 cubic yards or portion must be collected (e.g., ft 130-cubic yard stockpile would require 6 samples). Section the stockpile into 25 cubic vard portions and obtain a minimum ofone (1) sample from each 25 cubic yard portion. Select sample points randomly within each 25 cubic yard portion of the stockpile. SAM Manual ' 1.20.2000 Page 5-45 12/19/01 13:37 FAX 619S3656 •' SECTION 5: SITE INVESTIGATION TECHNIQUES -SD E1002 « Stockpiles over 500 cubic yards: contact DEH for guidance on the minimum samples necessary. 5. Random sample points must be selected from locations on a three-dimensional grid. The presence of materials such as boulders, debris, etc., may make strict application of this requirement impractical. In such cases, it is appropriate to obtain the sample as close as possible to the randomly selected point without altering the spirit of the random selection process. For hydrocarbon contaminants, sample collection in cither metal tubes or glass jars is acceptable, provided every effort is made to minimize the loss of volatile constituents. Metal tubes are preferred, since thoy will minimize aeration of the samples. Containers should be completely filled, capped, and placed on ice immediately. 6. Stockpiled soil is assumed to have a non-homogeneous distribution of contaminants. If a stockpile previously characterized by this protocol is split for any reason (such as to excise a portion expected to be highly contaminated from a non- or lesser-contaminated portion), the remaining mass must be re-sampled as a new stockpile per the previously described protocol to establish its mean contaminant concentration. Note that it is not necessary to consider each individual stockpile separately. At the discretion of the consultant, stockpiles expected to contain similar contaminant conditions can be considered part of the same soil mass for die purpose of SW-846 sampling. 7. Information on stockpiled soil evaluation must be submitted to DEH and must include the following: An estimate of the volume of contaminated soil involved A description of the contaminant (e.g., gasoline, diesel, aviation fuel) A description of the sampling methodology and the sample location/selection process A plot plan detailing ihe stockpile and sample locations A copy of all sample results, chain of custody documents, and QA/QC supporting dam A one-page summary of the laboratory results for the stockpile sampling Statistical calculations for ail stockpiles greater than 20 cubic yards. Note: A Stockpile Statistics Worksheet (Table 5-8) and Tabulated Values of Students 't5 (Table 5-9) are provided as an aid in completing those calculations. • A statement by the RP or by a registered professional (e.g., RG. RCE, Registered Environmental Health Specialist, or equivalent) certifying the level of contamination as determined using the SW-846 statistical process. 8. Data generated by field instrument methodologies such as photo-ionization and flame ionization Selectors are not acceptable for quantifying contaminant concentrations. Ii B. Sampling Protocol for Containerized Soil The RP or consultant often chooses to manage soil by placing it in containers (e.g., storage bins, 55-gallon drums) for security or aesthetic reasons. The characterization of soil placed in storage bins will typically follow the same sampling protocol as described above for stockpiled soil. However, the characterization of soil placed hi drums may require the review of boring logs and site sampling/analytical data, as well as the collection of soil samples from selected drums. Please contact me DEH caseworker For specific direction concerning the characterization of soil stored in drums.y Page S-46 1.20.2000 SAM Manual