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Home My WebLink AboutCT 98-19; Roesch Property Residential Subdivision; Tentative Map (CT) (52)& ASSOCIATES, INC. Professional Teams for Complex Projects Engineering, Planning, Corporate Office: Environmental Sciences and 605 Third Street 760.942.5147 Management Services Encinitas, California 92024 Fax 760.632.0164 June 13, 2001 2980-01 Mr. Tom Farrar Standard Pacific Homes 5750 Fleet Street, Suite 200 Carlsbad, California 92008 Re: Soil Sampling Results, Roesch Property, Carlsbad, CA Dear Mr. Farrar: Pursuant to your request, Dudek & Associates, Inc. (Dudek) conducted a focused Phase I Site Assessment at Standard Pacific Homes La Roesch property in Carlsbad, California. The site assessment involved soil sampling at La Roesch, the results of which are reported herewith. As reported, La Roesch is planned for development and at the time of Dudek's visit there had been some grading and filling activity. Currently, it is approximately a one-acre undeveloped parcel overlain with grass and various shrubs. La Roesch was said to have been used for tomato farming hence the interest in testing the soil. Sample Collection and Analysis Dudek collected a total of five soil samples from the project area as detailed in Figure 1. The samples were collected on May 2, 2001. The locations of the samples were selected randomly and intended to represent the entire area planned for development. Each sample was collected in an eight-ounce glass jar from approximately six inches below land surface. Standard chain-of-custody procedures were followed during delivery to the laboratory. The samples were preserved on ice and hand-delivered to D-Tek Analytical Laboratories of San Diego, CA. All five samples were analyzed for chlorinated pesticides by EPA Method 8080. Table 1 shows the results for chlorinated pesticides that were above the detection limits. A complete report from the laboratory is included in the appendix. Results As shown in Table 1, there were four compounds detected in the 8080 analysis. These four compounds include 4,4'-DDD, 4,4'-DDE, 4,4'-DDT and Dieldrin. All five samples contained at least three of these compounds. The United States Environmental Protection Agency (USEPA) Region DC publishes preliminary remediation goals (PRGs) for contaminants in residential and industrial soils. Residential PRGs were Tom Farrar 2980-01 La Roesch Site Assessment Page 2 considered, as this is the intended use of La Roesch. The PRGs are based on cancer risks of one million to one and for residential are determined considering exposure for 350 days per year for over 30 years. The compounds listed in Table 1, which were above the laboratory's detection limits, have residential PRGs of 2400 ug/kg for ODD, 1700 ug/kg for DDE, 1700 ug/kg for DDT and 30 ug/kg for Dieldrin. None of the compounds in Table 1 were above the residential PRGs. In fact, the concentrations of most of the compounds found in the soil samples from La Roesch were two to three orders of magnitude less than the residential RPGs. Recommendations Based on the soil sample results, there does not appear to be any significant health risks associated with the chlorinated pesticides at La Roesch. No further action is recommended based on the chlorinated pesticides analyses. Concentrations of the detected compounds were not above the residential PRGs as determined by the EPA. Dudek appreciates the opportunity to assist you. If you have any questions or require further discussion, please contact me at (760) 942-5147. Sincerely, Dudek & Associates, Inc GlehnaB.McMahon Derek M. Reed, P.E. Environmental Engineer i i i i i i i i i i f i i i i ! f f ) f i t ) i i i i f i r i i i f i i i TABLE 1. Chlorinated Pesticides Above Detection Limits (EPA Method 8080) CONCENTRATIONS IN MICROGRAMS PER KILOGRAM Sample ID RS-1 RS-2 RS-3 RS-4 RS-5 Residential PRGs Date Sampled 5/2/01 5/2/01 5/2/01 5/2/01 5/2/01 4,4' - ODD 1.5 1.02 3.04 <0.5 <0.5 2400 4,4' - DDE 3.3 3.6 9.6 10.7 1.6 1700 4,4' - DDT 2.45 1.09 3.87 6.96 0.75 1700 Dieldrin 7.56 8.0 18.8 3.08 1.94 30 Standard Pacific - Roesch Site Assesment June 2001 2980-01 Dudek & Associates, Inc. LOOZ VO 'peqs|JBQ S8LUOH osjped pjepuejs HOS3Od VI SNOI1VOO1 ONIldlAIVS 1IOS ,OS=«L 091 09 0 31VOS OIHdVdO NOI1V001 QN3931 VZ036 VO S09 'ONI 'S3IVIOOSSV D-TEK Analytical Laboratories, Inc. 9020 Kenamar Drive, Suite 205 San Diego, CA 92121 (858)566-4540 FAX (858) 566-4542 DUDEK & ASSOCIATES, INC. 605 Third Street Encinitas, CA 92024 Attn: Mr. Peter Quinlan Date of Report: Sampling Date: Date Sample Received: Date Extracted: Date Analyzed: Analyzed By: Sample Type: Project Name: Method: Units: 5/9/01 5/2/01 5/2/01 5/4/01 May 8, 2001 EA Soil Roesch Standard Pacific EPA 3550/3620/8080 The sample(s) were analyzed with EPA methodology or equivalent methods as specified on the attached "Analyses Results" report. The symbol for "less than" indicates a value below the reportable detection limit. The results of these analyses and the quality control data are enclosed. Ellen Atienza r Operations Manager D-TEK Analytical Laboratories, Inc. 9020 Kenamar Drive, Suite 205 San Diego, CA 92121 (858) 566-4540 FAX (858) 566-4542 DUDEK & ASSOCIATES, INC. 605 Third Street Encinitas, CA 92024 Attn: Mr. Peter Quinlan Date of Report: Sampling Date: Date Sample Received: Date Extracted: Date Analyzed: Analyzed By: Method: Units: Sample Type: Project Name: 5/9/01 5/2/01 5/2/01 5/4/01 May 8, 2001 EA EPA 3550/3620/8080 Soil Roesch Standard Pacific ANALYSIS Aldrin Alpha- BHC Beta - BHC Chlordane (Tech / Tot) 4,4' - ODD 4,4' - DDE 4,4' - DDT Delta - BHC Dieldrin Endosulfan I Endosulfan II Endosulfan Sulfate Endrin Endrin Aldehyde Gamma - BHC (Lindane) Heptachlor Heptachlor Epoxide Methoxychlor Toxaphene Aroclor- 1016 Aroclor- 1221 Aroclor- 1232 Aroclor - 1 242 Arocior- 1248 Aroclor- 1254 Aroclor - 1260 Detection Limits 0.20 0.60 0.60 10.00 0.50 0.50 0.40 0.60 0.30 0.30 0.50 0.40 0.40 0.50 0.30 0.20 0.30 10.00 25.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 Log Number: 01-2276 Sample ID: RS-1 *DF <DL <DL ' <DL <DL 1.50 3.30 2.45 <DL 7.56 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL 01-2277 RS-2 *DF <DL <DL <DL <DL 1.02 3.60 1.09 <DL 8.0 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL Ellen Atienza Operations Manager * DF= Dilution Factor. The detection limits and analyses results were corrected accordingly. D-TEK Analytical Laboratories, Inc. 9020 Kenamar Drive, Suite 205 San Diego, CA 92121 (858)566-4540 FAX (858) 566-4542 DUDEK & ASSOCIATES, INC. 605 Third Street Encinitas, CA 92024 Attn: Mr. Peter Quintan Date of Report: Sampling Date: Date Sample Received: Date Extracted: Date Analyzed: Analyzed By: Method: Units: Sample Type: Project Name: 5/9/01 5/2/01 5/2/01 5/4/01 May 8, 2001 EA EPA 3550/3620/8080 Soil Roesch Standard Pacific ANALYSIS Detection Limits Log Number: Sample ID: 01-2278 RS-3 01-2279 RS-4 *DF *DF Aldrin 0.20 Alpha- BHC 0.60 Beta-BHC 0.60 Chlordane (Tech / Tot) 10.00 4,4' - ODD 0.50 4,4' - DDE 0.50 4,4' - DDT 0.40 Delta - BHC 0.60 Dieldrin 0.30 Endosulfan I 0.30 Endosulfan II 0.50 Endosulfan Sulfate 0.40 Endrin 0.40 Endrin Aldehyde 0.50 Gamma - BHC (Lindane) 0.30 Heptachlor 0.20 Heptachlor Epoxide 0.30 Methoxychlor 10.00 Toxaphene 25.00 Aroclor-1016 50.00 Aroclor-1221 50.00 Aroclor - 1232 50.00 Aroclor-1242 50.00 Aroclor - 1248 50.00 Aroclor-1254 50.00 Aroclor -1260 50.00 <DL <DL <DL <DL 3.04 9.60 3.87 <DL 18.8 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL 10.7 6.96 <DL 3.08 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL Ellen Atienza Operations Manager * DF= Dilution Factor. The detection limits and analyses results were corrected accordingly. D-TEK Analytical Laboratories, Inc. 9020 Kenamar Drive, Suite 205 San Diego, CA 92121 (858) 566-4540 FAX (858) 566-4542 DUDEK & ASSOCIATES, INC. 605 Third Street Encinitas CA 92024 Attn: Mr. Peter Quinlan Date of Report: Sampling Date: Date Sample Received: Date Analyzed: Analyzed By: Method: Units: Sample Type: Project Name: 5/9/01 5/2/01 5/2/01 May 8, 2001 EA EPA 3550/3620/8080 Soil Roesch Standard Pacific ANALYSIS Aldrin Alpha- BHC Beta - BHC Chlordane (Tech / Tot) 4,4' - ODD 4,4' - DDE 4,4' - DDT Delta - BHC Dieldrin Endosuifan I Endosuifan II Endosuifan Sulfate Endrin Endrin Aldehyde Gamma - BHC (Lindane) Heptachlor Heptachlor Epoxide Methoxychlor Toxaphene Aroclor- 1016 Aroclor- 1221 Aroclor - 1232 Aroclor - 1242 Aroclor - 1248 Aroclor - 1254 Aroclor - 1260 Detection Log Number: Limits Sample ID: 0.20 0.60 0.60 10.00 0.50 0.50 0.40 0.60 0.30 0.30 0.50 0.40 0.40 0.50 0.30 0.20 0.30 10.00 25.00 50.00 50.00 50.00 50.00 50.00 50.00 50.00 01-2280 RS-5 *DF <DL <DL <DL <DL <DL 1.60 0.75 <DL 1.94 <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL <DL Ellen Atienza' Operations Manager 1 DF= Dilution Factor. The detection limits and analyses results were corrected accordingly. D-TEK Analytical Laboratories, Inc. 9020 Kenamar Drive, Suite 205 San Diego, CA 92121 (858) 566-4540 FAX (858) 566-4542 Date: Attn: Log#: Date Extracted: Date Analyzed: Extraction Method: Analysis Method: METHOD BLANK QUALITY CONTROL DATA REPORT 5/9/01 Mr. Peter Quinlan 01-2276 to 01-2280 5/4/01 May 8,2001 EPA 3550 / 3620 EPA 8080 No target analytes were detected in the method blank. LABORATORY CONTROL STANDARD Compound G-BHC (Lindane) Heptachlor Aldrin Dieldrin Endrin 4,4' DDT PCB #1260 MATRIX SPIKE RESULTS ( Compound G-BHC (Lindane) Heptachlor Aldrin Dieldrin Endrin 4,4 - DDT * QC Limits: Applies to LCS, 01-2276) Spike % Recovery 90 80 86 110 112 111 MS & MSD. % Recovery 110 85 100 113 100 104 95 Spike Dup. % Recovery 94 81 89 112 115 110 QC Limits % * 32-127 34-111 42-122 36-146 30-147 25-160 8-127 MS/MSD RPD % 4 1 3 2 3 1 QUALITY CONTROL TERMINOLOGY LCS - LABORATORY CONTROL SAMPLE. Reported as % recovery of an independent standard carried through all sample preparation procedures to verify method performance. Acceptable range is based on historical laboratory control data and EPA requirements. Any out-of-control QC data is clearly indicated. Spike- environmental sample is matrix spiked with method compounds and % recovery of concentration spiked into sample is calculated. Reported as % recovery. Acceptable range for "Normal Matrix Sample" is based on historical laboratory control data. Any out-of-control QC data is clearly indicated. Surrogates- Compounds representative of a group of compounds. Surrogates are spiked into environmental samples and % recovery of concentration spiked is calculated and reported. Acceptable range varies depending on sample matrix and analysis method. Any out-of-control QC data is clearly indicated. Page 1 of 2 D-TEK Analytical Laboratories, Inc. 9020 Kenamar Drive, Suite 205 San Diego, CA 92121 (858) 566-4540 FAX (858) 566-4542 SURROGATE RECOVERIES (Tetrachloro-M-Xylene) Log # Percent Recovery: Method Blank 104 01-2276 83 01-2277 90 01-2278 92 01-2279 95 01-2280 89 LCS 99 01-2276 MS 84 01-2276MSD 84 QC Limits: 43 to 169% Ellen Atienza Operations Manager QUALITY CONTROL TERMINOLOGY LCS - LABORATORY CONTROL SAMPLE. Reported as % recovery of an independent standard carried through all sample preparation procedures to verify method performance. Acceptable range is based on historical laboratory control data and EPA requirements. Any out-of-control QC data is clearly indicated. Spike- environmental sample is matrix spiked with method compounds and % recovery of concentration spiked into sample is calculated. Reported as % recovery. Acceptable range for "Normal Matrix Sample" is based on historical laboratory control data. Any out-of-control QC data is clearly indicated. Surrogates- Compounds representative of a group of compounds. Surrogates are spiked into environmental samples and % recovery of concentration spiked is calculated and reported. Acceptable range varies depending on sample matrix and analysis method. Any out-of-control QC data is clearly indicated. Page 2 of 2 f I II it 11 II I I f 1 f 1 II II II II II II CHAIN-OF-CUSTODY RECORD AND ANALYSIS REQUEST FORM I 1 1 ft 1 f 1 PROJECT NAME PROJECT NO. SAMPLER(S) fc>fc "2^\ 8>O — O 464& Send Results and Invoice To: Peter Quinlan Dudek & Associates, Inc. 605 TWrd Street Encinitas, CA 92024 Tel: 619/942-5147 Fax: 619/632-0164 Laboratory Attn: Shipment Method: Page \ i ' Of \ SAMPLER'S SIGNATURE- v. ^ N^^.^^ 5^_iir^yvvu^r-^ NOTE: All samples are preserved on ice in coolers. / LAB ID 0\-^.T)(c- 0 / v 2 Z"7 7 01 -?A7? 0/~«?£7<? *!-PPSo \\\\\ ^x 'x SAMPLE ID Ks- i ts-z fcS-H n ^* ^^ r^ P"sA^ C3 \\x ^x\ \ \ \ j\x SAMPLE COLLECTION Date 92-jol 5^2- 5 3- <Z 1. ol ol ol 3 zioi_ x^ \ XAV\ Time 14 '-IV iM'.^o It Ho 14:50 i8;o-b \ \ \ V ^X^ V MATRIX Soil X, v^ X V, ^ / / v\\ X Ground- water \ .S\/ , / ^ SurfaceWater •T**' ^ \ \ \X FILTRATION IN FIELD YES / / \ \ \ HO ¥ > •v V ^ X V TOTAL NUMBER OF CONTAINERS PER ANALYSIS: SAMPLE CONTAINERS (INCLUDE PRESERVATION) rfi / 1 \ 1 I \ Sx,\\ " (^) \vx\ •——"-"•\\\ x ' v — x >X \ \ X•^ \\ ANALYSES REQUESTED vl o V < V Nl V •— — vX A\\ / \ V ' \V \\\ XX x (\\\\ (X \ V XA X1 TOTAL NUMBER OF CONTAINERS: X" \ \ \ ^/ SPECIAL INSTRUCTIONS — ~- — —___.. '\ \ ^X \x"x^ \ X \\\ \v_ \ 'sj) Relinquished ByiS^l^^jrYVyV^ \/s. Company: f^U.cl-* l<.^> »^S£O£_ Date: Cj 2-1 C> 1 Time: //[ ' *jO I V ' Relinquished By: Company: Date: Time: Received By: f2.L $-c<-> Date: ^ /C^/ I Received By: Date: -«T^-MJV-V Company: B^T~E:fc L^Jfj-t^ Time: / "? ', 3 C) Company: Time: Sample Receipt: -^*\ No. of containers correct •3 Received good condition/cold X1 Conforms to COC document