April 13, March 2011 Darby Creek Surface Water Sampling Results Page Property, Willits, California. Dear Ms. Goebel:

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1 April 13, 2011 Ms. Janice M. Goebel California Regional Water Quality Control Board North Coast Region 5550 Skylane Blvd., Suite A Santa Rosa, CA Subject: March 2011 Darby Creek Surface Water Sampling Results Page Property, Willits, California Dear Ms. Goebel: This letter has been prepared to provide the Regional Water Quality Control Board North Coast Region (RWQCB) with the analytical results of the March 2011 surface water sampling conducted at the Page Property (Figure 1). Pursuant to Monitoring and Reporting Program R (dated November 24, 2009), surface water samples (PPSW 01, PPSW 02, PPSW 03, PPSW 05, and PPSW 06R) were collected from Darby Creek on March 1, 2011 and analyzed for hexavalent chromium by EPA Method 7199, as shown on Figure 2. Hexavalent chromium was not detected above the reporting limit ( milligrams per liter [mg/l]) in the routine surface water samples collected during the March 2011 sampling event. The data are summarized on Table 1. Table 1 also provides the historical results of data collected within the previous 12 months. The March 2011 surface water field data collection sheet and the subject laboratory analytical report are included as Appendices A and B, respectively. Appropriate quality control sampling 1 was conducted as described in the attached data validation report (Appendix C). Where validation results indicated bias or poor quality, data qualifiers were assigned to the respective analytical data. Data validation flags assigned during validation are defined in Appendix C. 1 QC sampling included a duplicate sample collected at PPSW 03. PP Monthly SW Ltr_Rpt March 2011

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3 March 2011 Darby Creek Surface Water Sampling Results, Page Property April 13, 2011 Page 3 of 3 Table Table 1 Summary of Surface Water Analytical Results Figures Figure 1 Figure 2 Site Location Map Surface Water Sampling Locations Appendices Appendix A Appendix B Appendix C Field Data Summary Sheet Analytical Laboratory Report Data Validation Report

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5 Notes: U TABLE 1 SUMMARY OF SURFACE WATER ANALYTICAL RESULTS Page Property Mendocino County, California Sample Location Sample Date Hexavalent Chromium (EPA 7199) PPSW 01 4/1/2010 < /17/2010 < /14/2010 < /2/2010 < Jo 12/2/2010 < Jo+ 1/4/2011 < /1/2011 < /1/2011 < PPSW 02 4/1/2010 < /17/2010 < /14/2010 < /2/2010 < Jo 12/2/2010 < Jo 1/4/ /1/2011 < /1/2011 < PPSW 03 4/1/2010 < /17/2010 < /14/2010 < /2/2010 < Jo 12/2/2010 < Jo 1/4/ /1/ /1/2011 < PPSW 05 4/1/2010 < /17/2010 < /14/2010 < /2/2010 < Jo 12/2/2010 < Jo+ 1/4/ /1/ /1/2011 < PPSW 06R 4/1/2010 < /17/2010 < /14/2010 < /2/2010 < Jo 12/2/2010 < Jo 1/4/ /1/2011 < /1/2011 < The analyte was analyzed for, but was not detected above the adjusted sample quantitation limit (i.e., RL and MDL) due to contamination from an outside source such as laboratory contamination. Jo An estimated value for this compound was reported by the laboratory below the method reporting limit shown. There is a lower confidence in the accuracy of the estimated value reported by the laboratory and the qualified data is represented as below the laboratory reporting limit (<RL Jo). + The result is biased high. mg/l milligrams per liter. Page 1 of 1

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9 APPENDIX A FIELD DATA SUMMARY SHEET

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11 APPENDIX B ANALYTICAL LABORATORY REPORT

12 alscience nvironmental aboratories, Inc. Page 1 of 9 March 09, 2011 Terry James Jacobson James & Associates 9083 Foothills Blvd., Suite 370 Roseville, CA P Subject: Calscience Work Order No.: Client Reference: Willits Trust / March Darby Creek Dear Client: Enclosed is an analytical report for the above-referenced project. The samples included in this report were received 3/2/2011 and analyzed in accordance with the attached chain-of-custody. Calscience Environmental Laboratories certifies that the test results provided in this report meet all NELAC requirements for parameters for which accreditation is required or available. Any exceptions to NELAC requirements are noted in the case narrative. The original report of subcontracted analysis, if any, is provided herein, and follows the standard Calscience data package. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety. If you have any questions regarding this report, please do not hesitate to contact the undersigned. Sincerely, Calscience Environmental Laboratories, Inc. Virendra Patel Project Manager.. NELAP ID: 03220CA DoD-ELAP ID: L10-41 CSDLAC ID: SCAQMD ID: 93LA Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

13 Page 2 of 9 alscience nvironmental aboratories, Inc. Analytical Report Jacobson James & Associates Date Received: 03/02/ Foothills Blvd., Suite 370 Work Order No: Roseville, CA Preparation: N/A Method: EPA 7199 Project: Willits Trust / March Darby Creek Page 1 of 2 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time Analyzed PPSW-PPSW-1-AF A 03/01/11 Aqueous IC 12 N/A 03/02/11 11:43 11:07 QC Batch ID L01 Parameter Result RL DF Qual Units Chromium, Hexavalent ND mg/l PPSW-PPSW-2-AF A 03/01/11 Aqueous IC 12 N/A 03/02/11 11:48 11: L01 Parameter Result RL DF Qual Units Chromium, Hexavalent ND mg/l PPSW-PPSW-3-AF A 03/01/11 Aqueous IC 12 N/A 03/02/11 11:59 11: L01 Parameter Result RL DF Qual Units Chromium, Hexavalent ND mg/l PPSW-PPSW-3-BF A 03/01/11 Aqueous IC 12 N/A 03/02/11 11:59 11: L01 Parameter Result RL DF Qual Units Chromium, Hexavalent ND mg/l PPSW-PPSW-5-AF A 03/01/11 Aqueous IC 12 N/A 03/02/11 12:14 11: L01 Parameter Result RL DF Qual Units Chromium, Hexavalent ND mg/l PPSW-PPSW-6R-AF A 03/01/11 Aqueous IC 12 N/A 03/02/11 12:08 11: L01 Parameter Result RL DF Qual Units Chromium, Hexavalent ND mg/l RL - Reporting Limit, DF - Dilution Factor, Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

14 Page 3 of 9 alscience nvironmental aboratories, Inc. Analytical Report Jacobson James & Associates Date Received: 03/02/ Foothills Blvd., Suite 370 Work Order No: Roseville, CA Preparation: N/A Method: EPA 7199 Project: Willits Trust / March Darby Creek Page 2 of 2 Client Sample Number Lab Sample Number Date/Time Collected Matrix Instrument Date Prepared Date/Time Analyzed Method Blank ,841 N/A Aqueous IC 12 N/A 03/02/11 09:32 QC Batch ID L01 Parameter Result RL DF Qual Units Chromium, Hexavalent ND mg/l RL - Reporting Limit, DF - Dilution Factor, Qual - Qualifiers 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

15 Page 4 of 9 alscience nvironmental aboratories, Inc. Jacobson James & Associates 9083 Foothills Blvd., Suite 370 Roseville, CA Quality Control - Spike/Spike Duplicate Date Received: 03/02/11 Work Order No: Preparation: N/A Method: EPA 7199 Project Willits Trust / March Darby Creek Quality Control Sample ID Matrix Instrument Date Prepared Date Analyzed MS/MSD Batch Number PPSW-PPSW-2-AF Aqueous IC 12 N/A 03/02/ S01 Parameter MS %REC MSD %REC %REC CL RPD RPD CL Qualifiers Chromium, Hexavalent RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

16 Page 5 of 9 alscience nvironmental aboratories, Inc. Jacobson James & Associates 9083 Foothills Blvd., Suite 370 Roseville, CA Quality Control - LCS/LCS Duplicate Date Received: N/A Work Order No: Preparation: N/A Method: EPA 7199 Project: Willits Trust / March Darby Creek Quality Control Sample ID Matrix Instrument Date Prepared Date Analyzed LCS/LCSD Batch Number ,841 Aqueous IC 12 N/A 03/02/ L01 Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers Chromium, Hexavalent RPD - Relative Percent Difference, CL - Control Limit 7440 Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

17 Page 6 of 9 alscience nvironmental aboratories, Inc. Glossary of Terms and Qualifiers Work Order Number: Qualifier * < > B BU E ET J ME ND Q X Z 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 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. Sample analyzed after holding time expired. Concentration exceeds the calibration range. Sample was extracted past end of recommended max. holding time. 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. All QC results are reported on a wet weight basis Lincoln Way, Garden Grove, CA TEL:(714) FAX: (714)

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21 APPENDIX C DATA VALIDATION REPORT

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