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Quality Assurance Project Plan (QAPP) 6th and Jackson Moscow, Idaho Phase II Extension – Addendum I Prepared for: City of Moscow 206 East 3rd Street Moscow, ID 83843 Prepared by: TerraGraphics Environmental Engineering, Inc. 121 South Jackson Street Moscow, ID 83843 www.terragraphics.com October 18, 2013 ---PAGE BREAK--- Quality Assurance Project Plan 6th and Jackson Moscow Phase II Extension Addendum I ii Title and Approval Sheet Quality Assurance Project Plan Addendum I for 6th and Jackson Moscow Prepared by: TerraGraphics Environmental Engineering, Inc. Effective Date: October 18, 2013 Approved by: Date: TERRAGRAPHICS - PROJECT MANAGER Robin Nimmer Date: CITY OF MOSCOW ECONOMIC DEVELOPMENT SPECIALIST Jeffrey B. Jones Date: U.S. ENVIRONMENTAL PROTECTION AGENCY – PROJECT MANAGER Terri Griffiths Date: U.S. ENVIRONMENTAL PROTECTION AGENCY – REGIONAL QA MANAGER Gina Grepo-Grove ---PAGE BREAK--- Quality Assurance Project Plan 6th and Jackson Moscow Phase II Extension Addendum I iii Table of Contents Section 1.0 Introduction 1 Section 2.0 Soil Borings/Samples 1 Section 3.0 Project Timetable 2 Section 4.0 References and Resources Used 3 List of Figures Figure 1. Decision Units and Anticipated Boring Locations. 4 List of Tables Table 1. Recommended Container Types, Number of Containers, Preservation, and Holding Times for Samples 2 ---PAGE BREAK--- Quality Assurance Project Plan 6th and Jackson Moscow Phase II Extension Addendum I iv Acronyms and Abbreviations DDT DU Decision Unit ESA Environmental Site Assessment IDAPA Idaho Department of Administrative Procedures Act QAPP Quality Assurance Project Plan RATL Remedial Action Target Level RSL Regional Screening Level SU Sample Unit TerraGraphics TerraGraphics Environmental Engineering, Inc. Tetra Tech Tetra Tech, Inc. µg/m3 microgram per cubic meter USEPA U.S. Environmental Protection Agency ---PAGE BREAK--- Quality Assurance Project Plan 6th and Jackson Moscow Phase II Extension Addendum I 1 Section 1.0 Introduction Tetra Tech, Inc. (Tetra Tech) conducted a Phase II Environmental Site Assessment (ESA) at 317 West 6th Street (6th and Jackson), Moscow (Tetra Tech, 2013). Tetra Tech divided the site into three DUs and further divided two of the units into Sample Units (SUs). They collected surface soil samples and analyzed for metals, pesticides, and herbicides. Of the three DUs, the Central Site Bulk Chemical Storage and Railroad Spur DU, which had two SUs (S2-SS2-01 and S2-SS2- 02), exceeded the Remedial Action Target Level (RATL) Scenario 1 for (DDT) in SU1 and Dieldrin in SU2. Based on results from the Phase II ESA Tetra Tech recommended additional site assessment activities to characterize the vertical extent of the contaminated soil from DU2 for disposal purposes. The purpose of this Quality Assurance Project Plan (QAPP) addendum is to update the original QAPP (TerraGraphics, 2012) for the additional sampling activities and to comply with the U.S. Environmental Protection Agency’s (USEPA) requirements for QAPPs (USEPA, 2001). This work is being conducted as part of the City of Moscow Brownfields Coalition Assessment Project. The goal is to characterize the vertical extent of the soil contamination to evaluate the depth for excavation. This addendum includes revisions to specific sections of the original QAPP as detailed below. All other sections in the original QAPP have remained unchanged because either the content or purpose is still applicable to these additional site assessment activities. Section 2.0 Soil Borings/Samples Tetra Tech’s Central Site Bulk Chemical Storage and Railroad Spur DU is divided into four new Sampling Units (SUs). In keeping with the same nomenclature, these SUs are named S2-SS2-A, S2-SS2-B, S2-SS2-C, and S2-SS2-D. TerraGraphics will advance five soil borings to a depth of 4 feet per SA using a direct push drill rig. A composite sample will be collected from each of the following depths for each SU: 1. 0-6 inch depth interval (surface) = 4 samples total 2. 6-12 inch depth interval = 4 samples total 3. 12-18 inch depth interval = 4 samples total 4. 18-24 inch depth interval = 4 samples total 5. 24-30 inch depth interval = 4 samples total 6. 30-36 inch depth interval = 4 samples total 7. 36-48 inch depth interval = 4 samples total Because soil recovery in a boring is typically not 100%, the field crew will document the estimated depth of the sample. A maximum of 24 samples will be submitted to the laboratory. The field crew will deliver samples to Anatek Labs in Moscow, ID. The laboratory will analyze the soil samples for Dieldrin and DDT using USEPA Method 8081A (USEPA, 1996) (Table The laboratory will ---PAGE BREAK--- Quality Assurance Project Plan 6th and Jackson Moscow Phase II Extension Addendum I 2 conduct sample extraction on the samples from the all intervals to preserve holding times, but only the 0-6 inch depth will be analyzed. If the 0-6 inch sample exceeds the RATL-1 subsequent samples will be analyzed until concentrations are below the RATL. Table 1. Recommended Container Types, Number of Containers, Preservation, and Holding Times for Samples Source Analytes (USEPA Method) Number of Containers Sample Size/ Container Preservation Analysis Holding Time Soil Dieldrin and DDT (8081A)1 24 4-ounce clear glass jar with Teflon® lid Cool to 4°C 14 Days (non- extracted) Notes: 1. USEPA Method 8081A (USEPA, 1996) Section 3.0 Project Timetable QAPP Addendum preparation and approval: September/October 2013 Coordination with Analytical Laboratory: September/October 2013 Site utility locates: October 2013 Field work: October 2013 Laboratory Analysis: October/November 2013 Data Review: November/December 2013 Report Preparation: November/December 2013 Issue Draft Report: November/December 2013 Report Finalization: November/December 2013 ---PAGE BREAK--- Quality Assurance Project Plan 6th and Jackson Moscow Phase II Extension Addendum I 3 Section 4.0 References and Resources Used Idaho Administrative Procedures Act (IDAPA), 2012, IDAPA 58.01.24. Application of Risk Based Corrective Action at Petroleum Release Sites. March. TerraGraphics and STRATA, 2012. Quality Assurance Project Plan (QAPP) 317 West 6th Street Moscow, Idaho Phase II Environmental Site Assessment. February. Tetra Tech, Inc. (Tetra Tech), 2013. Final Phase II Environmental Site Assessment 317 West 6th Street Moscow, Idaho. May. U.S. Environmental Protection Agency (USEPA), 2001.EPA Requirements for Quality Assurance Project Plans. EPA QA-R5. March. USEPA, 1996. Method 8081A Organochlorine Pesticides by Gas Chromatography. Revision 1. December. USEPA, 2013. Regional Screening Levels for Chemical Contaminants at Superfund Sites. http://www.epa.gov/region9/superfund/prg/ ---PAGE BREAK--- Key Soil Borings Project No. 12002 Scale: N.T.S. Requestor: REN Drafter: REN City of Moscow Brownfields: 317 W. 6th Street Figure 1. Proposed Sample Locations Date: 9/23/13 6th Street