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4 FRANKLIN STREET - LEAD TCLP Analysis: 4 Franklin Street, Salem, NIA PERFORMED AT: 4 Franklin Street Salem,MA 01970 PREPARED FOR: Agganis Construction 394 Lincoln Ave Saugus Ma. 01907. OWNER: CASLLC. 4 Franklin Street Salem, MA 01970 PREPARED BY: Titan Lead Testing,LLC MA License#MI/R 1201 Expires 10/15/2020 PO Box 760709 Melrose,MA 02176 Letter of Transmittal December 26,2019 Stavros Ag pinis Agganis Construction 394 Lincoln Ave Saugus Ma. 01907. Dear Stavros Aggainis The lead-based paint TCLP analysis inspection was performed to determine if the concrete walls and ceiling materials to be disposed would be under the limit of the regulatory hazardous limit of 5 ppm. The methodology employs the use of the "Worst Case Scenario' as described in this document. The mathematical approach does not require laboratory analysis to resolve the leach ability of the paint matrix,because it assumes that of the worst case in which all of the paint matrix is leachable.All surfaces evaluated were below the hazardous levels of 5ppm. Please be advised that our evaluation is solely for lead-paint on construction material. A visual site visit on December 13,2019 and an XRF inspection of December 18,2019, were done at 4 Franklin Street,Salem,MA were done. Attached please find XRF lead based paint test results required data for the mathematical analysis. The following summarize type of materials tested for painted surfaces as of the date of the on-site evaluations. 1. CW concrete block 8"x 16"x 8" 2. CW concrete block 4"x 8"x 16" 3. Precast concrete hollow core plank It should be noted that the EPA Renovate,Repair and Painting(RRP) rule does not cover commercial building or residential building where complete demolition is done.Nor does the EPA RRP rule regulate surfaces with lead content less than 1.0 mg/cmZ,as is the case at this location. It is important,however, to check with the local health department and state agencies that may have regulations that could impact the demolition process although the surfaces are not classified as lead-based paint by EPA definitions. Sincerely, John Pesce Master Lead Inspector/Risk Assessor M1201 The TCLP analysis was done for one single analyte,lead, on concrete blocks that comprise walls and ceilings of the structure's materials that potentially will be sent to a landfill. This analysis does not encompass any other evaluation of debris of any other analyte or potentially hazardous materials, such as but not limited to Asbestos,Polychlorinated Biphenyls (PCBs),and Oils & Other Hazardous Materials. The waste stream for the TCLP analysis also did not include Bulk Scrap Metal as defined in 310 CMR 30.010 as: `Bulk Scrap Metal Item means a large item composed of worn out metal or a metal product that has outlived its original use, such as automobile hulks, railroad cars, steel beams from torn down buildings or bridges, and household appliances." Bulk Scrap Metal, is not subject to Section 310 CMR 30.200, or any other provision of 310 CMR 30.000. Screen and Calculate Lead Concentration This method involves using knowledge based on known data to calculate the concentration of lead in the entire quantity of debris. It is best used where the contamination is confined to a distinct layer such as the paint. The full and versions of this method are described: The Full Version r 1. Use field screening to find the components with lead-based paint. 2. Record the dimensions of the lead-based paint coated surfaces and calculate the total painted surface area (in square centimeters)on the components to be removed. 3. Sample the paint on the surface of the components to be removed, and test them at a laboratory to find the average weight percent of lead in the lead-based paint, the average paint thickness (in centimeters), and the average paint density (in milligrams per cubic centimeter). 4. Estimate the mass (in kilograms)of the components to be removed. Traditional engineering and/or demolition industry methods may be used. 5. Determine the mass-concentration of lead in the debris as follows: Volume of lead-based = Painted surface area in x Average paint paint in cubic centimeters centimeters squared thickness in centimeters Mass of lead-based paint = Average paint density in x Volume of lead- in milligrams milligrams per cubic based centimeter paint in cubic centimeters Mass of lead in the lead = Average weight percent of x Mass of lead-based' based lead in the lead-based paint paint in milligrams paint in milligrams Mass-concentration of lead = Mass of lead in the lead-based paint in in the structure in milligrams divided by the Estimated mass of the milligrams per structure in kilograms kilogram The 100 milligrams per kilogram value used above represents the lowest possible mass analysis concentration which could leach out greater than 5.0 milligrams per liter in a TC LP test. This is due to the 20:1 dilution ratio of the TCLP test protocol,and also assumes that 100% of the lead in the sample will leach out. Although in reality 100% of the lead would rarely leach out this assumption must be made in the place of actual TC LP results. This "worst-case" assumption adds a"safety factor"to compensate for errors in the data or in calculating the mass of the structure. If the initial test results show that the average weight percent of lead in the lead-based paint, the average paint thickness, or the average paint density varies widely from one part of the structure to another, it may be better to do separate "mass of lead-based paint" or "mass of lead in the lead-based paint" calculations for each part of the structure with similar values. The individual results for the different parts of the structure could then be summed before dividing by the mass of the entire structure. A simpler alternative is to use the highest numbers in each category for the calculation on the entire structure.If the calculation passes the 100 milligrams per kilogram test even with the highest values,there is no need to go through the additional effort to weight the different portions of the structure in this manner,since the result can only be lower. In order to determine the TCLP, the relative density of the concrete masonry unit(CMU) and that of the precast concrete hollow ceiling must be calculated empirically since the blocks have voids (cells) and is not of uniform consistency. Basis: CMU(8"x16"x8")dimensions 20.3cm x 40.6cm x 20.3cm= 16,731.7cm3 Weight of the CMU= 14,968.5g Density 14,968.5g/16,731.7cm3 =0.895g/cm3 CMU (4"xl6"x8") dimensions 10.2cm x 40.6cm x 20.3cm= 8,406.6cm3 Weight of the CMU= 11793.4g Density 11793.4g/8,406.6cm3= 1.403g/cm3 Precast concrete hollow ceiling for a 30.5cm x 20.3cm x 30.5cm= 18,884.1cm3 Weight of the precast ceiling=28,122.7g Density 28,122.7g/l8,884.1cm3 = 1.49 g/cm3 4 Franklin Street, Salem, MA; TCLP Mass Balance for Lead Worst Case I Component Thick Area Volume Relative Mass XRF* Area Mass TTLC TCLP cm cm2 Cm Densit rams m /Cm2 cm2 m mppm CMU 8"xl6"x8" 20.3 1.0 20.3 0.895 18.2 0.71 1.00 0.71 1 39.0 1.95 CMU 4"x16"W') 10.2 1.0 10.3 1.403 14.51 0.71 1.00 0.71 49.0 2.45 Concrete ceiling 20.3 1.0 20.3 1.49 30.2 0.31 1.00 0.31 10.3 0.52 * = total lead content on both sides of the surface mg/cm 2; see Table I TTLC = Concentration of lead in construction debris in parts per million TCLP= Toxic Characteristic Leche Proceedure; Hazardous if TCLP is equal to or above 5.0 PPM TCLP=TTLC/20; 20 is the dilution factor 4 Franklin Street, Salem, MA Table 1: XRF Readings on CMU in mg/cm2, Area A Side B Side C Side D Side Ceilin Interior Wall Bay 1 0.25 0.25 0.21 0.20 Interior Ceiling Bay 1 0.31 Interior Wall Bay 2 0.26 0.24 0.26 0.21 Interior Ceiling Bay 2 0.31 Interior Wall Bay 3 0.26 0.30 0.30 0.25 Interior Ceiling Bay 3 0.30 Interior Wall Bay 4 0.30 0.40 0.36 0.35 Interior Ceiling Bay 4 0.30 Interior Wall Bay 5 0.22 0.25 0.22 0.26 Interior Ceiling Bay 5 0.30 Interior Wall Bay 6 0.24 0.26 10.21 0.26 Interior Ceilin Bay 6 0.30 Interior Wall Bay 7 0.26 0.25 0.26 0.25 Interior Ceiling Bay 7 0.30 Interior Wall Bay 8 0.20 0.00 0.20 0.21 Interior Ceiling Bay 8 Metal Interior Wall Bay 9 0.21 0.23 10.020 0.23 Interior Ceiling Bay 9 Metal Interior Wall Ba 10 0.00 0.00 0.00 0.00 Interior Ceiling Bay 10 1 1 Metal Testing was done by Titan Lead Testing, LLC using an x-ray fluorescence(XRF) analyzer manufactured by Heuresis Corporation. 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