LEAD-BASED PAINT SCREENING REPORT

LEAD-BASED PAINT SCREENING REPORT FOR: Radnor Elementary School 7000 Radnor Road Bethesda, MD 20817 Prepared For: Ms. Teressa Lloyd Environmental Specialist Montgomery County Public Schools Division of Maintenance 16651 Crabbs Branch Way Rockville, MD 20855 Prepared and Submitted by: Jonathan Coale Maryland Accredited Risk Assessor Certification No. 14299 KCI Technologies Inc. 936 Ridgebrook Road Sparks, Maryland 21152 Date of Report: February 20, 2018

Table of Contents 1.0 Introduction... 1 2.0 Lead Based Paint (LBP) Screening... 1 3.0 Recommendations... 3 4.0 Disclaimer... 4 Attachments Attachment A: Lead Based Paint XRF Datasheet Attachment B: Labeled Floor Plan Attachment C: Photographs KCI Technologies Inc. Page i February 20, 2018

Radnor Elementary School Lead Based Paint Screening Report KCI Job # 1214634185 Reading No. 1.0 Introduction KCI Technologies, Inc. (KCI) was retained by Montgomery County Public Schools (MCPS) (Client), to conduct a Lead-Based Paint Screening of Radnor Elementary School located at 7000 Radnor Rd, Bethesda, MD 20817. The scope of work included a screening of interior and exterior components to determine general prevalence of lead based paint. The survey included 148 XRF readings including 8 calibrations. Wall codes (A, B, C, D) were used to show location of building components. Wall A indicated the front facing wall parallel with the main entrance of the building with wall B being the next wall going clockwise in order, etc. The LBP testing results are included as Attachment A. 2.0 Lead Based Paint (LBP) Screening Jonathan Coale performed the lead based paint screening (Certificate #14299). Mr. Coale performed the screening on February 9, 2018 in order to determine painted surfaces for lead content. The testing for lead content in paints was performed with a Thermo Scientific Niton XLp (model # XLp 300A, serial # 25231, resourced on February 15, 2017) x-ray fluorescence (XRF) Spectrum Analyzer, an instrument that detects lead by reading the fluorescence emanating from a painted surface when exposed to small amounts of radiation. XRF readings are in mg/cm 2, a mass per area reading. LBP is defined as >0.7mg/cm 2 by Maryland Department of Environment and 1.0 mg/cm 2 by the U.S. Environmental Protection Agency (EPA) and the U. S. Dept. of Housing and Urban Development (HUD). The Occupational Safety and Health Administration (OSHA) Lead in Construction Standard (29 CFR 1926.62) defines lead based paint as any detectable amount and guidelines must be followed for any activity which may bring a worker in contact with lead. Therefore a negative classification based on the EPA/HUD definition does not necessarily mean the component is lead free. The LBP action level used is >0.7 mg/cm 2. Based on the testing results, Table 1 summarizes the components that contain lead levels >0.7mg/cm 2 : Room Substrate Table 1: Summary of Positive XRF Readings Component 1 Component 2 Color Wall Code XRF Readings mg/cm² Condition 9 CMU Wall Green C lobby 3.7 Intact 1 10 CMU Wall Tan C Kitchen 2.8 Intact 2 14 Wood Door Casing White B cafe 0.7 Deteriorated 5 21 Wood Closet Shelf White C cafe 1 Intact 3 28 Metal Door Casing White C storage 0.7 Deteriorated 5 31 CMU Wall Tan C storage 2.5 Intact 2 39 Wood Closet Shelf White A cr 11 0.7 Intact 3 40 Wood Closet Shelf White A cr 11 0.9 Intact 3 Picture KCI Technologies Inc. Page 1 February 20, 2018

Radnor Elementary School Lead Based Paint Screening Report KCI Job # 1214634185 Reading No. Room Substrate 41 Wood Closet Table 1: Summary of Positive XRF Readings Component 1 Shelf Support Component 2 Color Wall Code XRF Readings mg/cm² Condition Picture White A cr 11 2.2 Intact 3 42 Wood Closet Casing White A cr 11 1 Intact 6 50 Unknown Wall Cork Board White A 51 Unknown Wall Cork Board White D cr 14 cork cr 14 cork 1.4 Deteriorated 17 1.5 Deteriorated 17 53 Unknown Wall Cork Board Black C Hall 1.7 Intact 4 55 Metal Door Jamb Green C 56 Metal Door Jamb Green C boiler rm boiler rm 0.8 Deteriorated 5 0.9 Deteriorated 5 63 Wood Door Casing Green A cr 2 0.7 Deteriorated 5 66 Wood Closet Shelf White B cr 2 2.3 Intact 3 77 Wood Wall Casing White A Hall 5.9 Intact 7 78 Wood Wall Casing White A Hall 4 Intact 7 81 Metal Closet Casing Green D cr 5 0.7 Intact 6 82 Wood Closet Shelf White D cr 5 1.4 Intact 3 84 Metal Door Casing White A 88 CMU Wall Grey A 89 CMU Wall Grey A office 124 office 124 office 103 0.8 Deteriorated 5 3.1 Intact 8 2.5 Intact 8 90 CMU Wall Grey A Hall 2.9 Intact 8 114 Wood Soffit White A Exterior 1.7 Deteriorated 9, 18 117 Metal Stair Railing Black A Exterior 1.9 Deteriorated 10 118 Metal Window Casing White A Exterior 1.6 Deteriorated 11 119 Metal Window Casing White A Exterior 2.4 Deteriorated 11 122 Metal Door Lintel Green A Exterior 1.7 Deteriorated 12 123 Metal Column Black A Exterior 1.6 Deteriorated 13 124 Metal Window Casing White D Exterior 1.3 Deteriorated 11 125 Metal Window Casing White D Exterior 1.7 Deteriorated 11 126 Metal Pipe Brown D Exterior 2.1 Deteriorated 14 KCI Technologies Inc. Page 2 February 20, 2018

Radnor Elementary School Lead Based Paint Screening Report KCI Job # 1214634185 Reading No. Room Substrate Table 1: Summary of Positive XRF Readings Component 1 Component 2 Color Wall Code XRF Readings mg/cm² Condition 128 Metal Stair Railing Black D Exterior 1.8 Deteriorated 10 132 Metal Window Casing White C Exterior 2.2 Deteriorated 11 133 Wood Portico White C Exterior 2 Intact 15 134 Metal Pipe Brown C Exterior 1.3 Deteriorated 14 135 Metal Pipe Brown C Exterior 1.3 Deteriorated 14 136 Wood Door Header White C Exterior 1.8 Deteriorated 16 143 Wood Window Casing White A Exterior 2.8 Deteriorated 11 Picture 144 Wood Soffit Casing White A Exterior 3.3 Deteriorated 9, 18 Summary of lead containing components identified: Interior: Green CMU wall. Lead content detected at 3.7 mg/cm 2 Tan CMU wall. Lead content detected at 2.8 mg/cm 2 Grey CMU wall. Lead content detected at 2.5-3.1 mg/cm 2 White/Green wood door casings/jamb. Lead content detected at 0.7-1.8 mg/cm 2 White wood closet shelfing components. Lead content detected at 0.7-2.3 mg/cm 2 White and black cork boards. Lead content detected at 1.4-1.7 mg/cm 2 White wood call casings in hallways. Lead content detected at 4.0-5.9 mg/cm 2 Exterior: White wood soffit. Lead content detected at 1.7-3.3 mg/cm 2 Black metal stair railing. Lead content detected at 1.8-1.9 mg/cm 2 White window casing/sash. Lead content detected at 1.3-2.8 mg/cm 2 Green metal door lintel. Lead content detected at 1.7 mg/cm 2 Black metal column. Lead content detected at 1.6 mg/cm 2 Brown metal drain pipe. Lead content detected at 1.3-2.1 mg/cm 2 White wood portico. Lead content detected at 2.0 mg/cm 2 White door header. Lead content detected at 1.8 mg/cm 2 A labeled floor plan with example locations of lead based painted and/or containing components is included as Attachment B. Not all components are represented in the drawing. Photo examples of these components are included in Attachment C. 3.0 Recommendations Primarily the lead in paint on a renovation project is regulated in two (2) ways: 1) airborne lead dust by the U.S. Occupational Safety and Health Administration (OSHA), and 2) lead in waste by the toxicity characteristic leachate procedure (TCLP) by EPA and MDE. KCI Technologies Inc. Page 3 February 20, 2018

Radnor Elementary School Lead Based Paint Screening Report KCI Job # 1214634185 During renovation, it is recommended that the contractor follow OSHA "Lead in Construction" standard, in conjunction with dust control and containment to prevent lead contamination of the surrounding areas, and the use of personal protective clothing to protect worker health and safety during renovation. KCI recommends that the construction waste containing LBP and Lead Containing Materials (LCM) generated during renovation be tested for the toxicity characteristic leachate procedure (TCLP) by EPA and MDE to determine the appropriate disposal method. 4.0 Disclaimer This report has been prepared by KCI Technologies, Inc. exclusively for our Client and their Authorized Representatives. The findings and recommendations presented are based upon discussions with the Client of the present conditions, and may not necessarily indicate future conditions. KCI implies no warranty to the accuracy of information provided to them by the Client or outside agents and transmitted herein. KCI Technologies Inc. Page 4 February 20, 2018

Attachment A: Lead Based Paint XRF Datasheet

Index Substrate Component 1 Component 2 Color Wall Code Room XRF Reading (mg/cm^2) Result Condition Address 1 SRM 2579 Red Calibration 1.2 2 SRM 2579 Red Calibration 1.1 3 SRM 2579 Red Calibration 1.2 4 SRM 2570 White Calibration 0 5 Door Green A lobby 0.2 Negative Deteriorated Radnor 6 Metal Door Casing Green A lobby 0.1 Negative Deteriorated Radnor 7 Wood Door Casing Brown A lobby 0.5 Negative Deteriorated Radnor 8 CMU Wall Casing White C lobby 0 Negative Intact Radnor 9 CMU Wall Green C lobby 3.7 Positive Intact Radnor 10 CMU Wall Tan C Kitchen 2.8 Positive Intact Radnor 11 Wood Door Casing Brown C Kitchen 0.4 Negative Deteriorated Radnor 12 Wood Door Casing Green A Kitchen 0.1 Negative Deteriorated Radnor 13 Wood Door Green A Kitchen 0.1 Negative Deteriorated Radnor 14 Wood Door Casing White B cafe 0.7 Positive Deteriorated Radnor 15 Wood Door Casing White B cafe 0.4 Negative Deteriorated Radnor 16 Wood Door Casing White B cafe 0.5 Negative Deteriorated Radnor 17 CMU Wall White A cafe 0.5 Negative Deteriorated Radnor 18 Metal Window Casing White A cafe 0.3 Negative Intact Radnor 19 Metal Window Jamb White A cafe 0.2 Negative Intact Radnor 20 Brick Window Sill White A cafe 0.4 Negative Intact Radnor 21 Wood Closet Shelf White C cafe 1 Positive Intact Radnor 22 Metal Window Casing White C imc 0.2 Negative Intact Radnor 23 Metal Window Casing White C imc 0.3 Negative Intact Radnor 24 Metal Window Casing White C imc 0.2 Negative Intact Radnor 25 Metal Window Shelf White C imc 0.2 Negative Intact Radnor 26 CMU Wall White C imc 0.5 Negative Deteriorated Radnor 27 Metal Door Casing Brown C imc 0.6 Negative Deteriorated Radnor 28 Metal Door Casing Brown C storage 0.7 Positive Deteriorated Radnor 29 Metal Door Casing Brown C storage 0.5 Negative Deteriorated Radnor 30 Metal Column Brown C storage 0.4 Negative Deteriorated Radnor 31 CMU Wall Tan C storage 2.5 Positive Intact Radnor 32 Metal Stair Black C storage 0.1 Negative Intact Radnor 33 Metal Door Casing Brown C Bathroom 0.4 Negative Intact Radnor 34 Metal Window Casing White A Bathroom 0.2 Negative Deteriorated Radnor 35 Metal Window Casing White C cr 11 0.3 Negative Deteriorated Radnor 36 Metal Window Sill White C cr 11 0.3 Negative Deteriorated Radnor 37 CMU Wall White C cr 11 0.2 Negative Intact Radnor 38 Metal Closet Casing Brown A cr 11 0.6 Negative Intact Radnor 39 Wood Closet Shelf White A cr 11 0.7 Positive Intact Radnor 40 Wood Closet Shelf White A cr 11 0.9 Positive Intact Radnor 41 Wood Closet Shelf Support White A cr 11 2.2 Positive Intact Radnor 42 Wood Closet White A cr 11 1 Positive Intact Radnor 43 Wood Closet White A cr 11 0.2 Negative Intact Radnor 44 Wood Closet White A cr 11 0 Negative Intact Radnor 45 Wood Door Jamb Brown A Hall 0.6 Negative Deteriorated Radnor 46 Wood Door Jamb Brown A Hall 0.1 Negative Deteriorated Radnor 47 Metal Door Jamb Green A Hall 0.2 Negative Deteriorated Radnor 48 Metal Door Green A Hall 0.2 Negative Deteriorated Radnor 49 Metal Window Shelf White A cr 14 0.2 Negative Intact Radnor 50 Unknown Wall Cork Board White A cr 14 cork 1.4 Positive Intact Radnor 51 Unknown Wall Cork Board White D cr 14 cork 1.5 Positive Intact Radnor 52 Metal Window Casing White D cr 14 0.1 Negative Intact Radnor 53 Unknown Wall Cork Board Black C Hall 1.7 Positive Intact Radnor 54 Metal Door Red C boiler rm 0.3 Negative Deteriorated Radnor 55 Metal Door Jamb Green C boiler rm 0.8 Positive Deteriorated Radnor 56 Metal Door Jamb Green C boiler rm 0.9 Positive Deteriorated Radnor 57 Metal Stair Railing Black C boiler rm 0.3 Negative Deteriorated Radnor 58 CMU Wall Green A boiler rm 0.1 Negative Intact Radnor 59 Metal Door Green A boiler rm 0.1 Negative Deteriorated Radnor 60 Metal Door Casing Green A boiler rm 0.2 Negative Deteriorated Radnor 61 Concrete Stair Grey A boiler rm 0.4 Negative Deteriorated Radnor 62 Concrete Stair Grey A boiler rm 0.3 Negative Deteriorated Radnor 63 Wood Door Casing Green A cr 2 0.7 Positive Deteriorated Radnor 64 Wood Door Casing Green A cr 2 0.6 Negative Deteriorated Radnor 65 Wood Closet Casing Green B cr 2 0.5 Negative Intact Radnor 66 Wood Closet Shelf White B cr 2 2.3 Positive Intact Radnor 67 Metal Window Casing White A cr 2 0.4 Negative Intact Radnor 68 Concrete Window Sill White A cr 2 0.4 Negative Intact Radnor 69 Concrete Window Sill White A faculty rm 0.3 Negative Intact Radnor 70 Metal Window Casing White A faculty rm 0.2 Negative Intact Radnor

Index Substrate Component 1 Component 2 Color Wall Code Room XRF Reading (mg/cm^2) Result Condition Address 71 Metal Door Casing Green A faculty rm 0.2 Negative Deteriorated Radnor 72 Wood Door Casing Green A faculty rm 0.1 Negative Deteriorated Radnor 73 Wood Closet Casing Green B faculty rm 0.1 Negative Intact Radnor 74 Wood Closet Casing Green B faculty rm 0.2 Negative Intact Radnor 75 Wood Closet Shelf Green B faculty rm 0.1 Negative Intact Radnor 76 Wood Closet Shelf Green B faculty rm 0.1 Negative Intact Radnor 77 Wood Wall Casing White A Hall 5.9 Positive Intact Radnor 78 Wood Wall Casing White A Hall 4 Positive Intact Radnor 79 CMU Wall White A cr 5 0.2 Negative Intact Radnor 80 CMU Wall White D cr 5 0.1 Negative Intact Radnor 81 Metal Closet Casing Green D cr 5 0.7 Positive Intact Radnor 82 Wood Closet Shelf White D cr 5 1.4 Positive Intact Radnor 83 Drywall Wall Shelf White A cr 5 0.2 Negative Intact Radnor 84 Metal Door Casing White A office 124 0.8 Positive Deteriorated Radnor 85 Metal Window Casing White C office 124 0.4 Negative Intact Radnor 86 Metal Radiator Casing White C office 124 0.6 Negative Intact Radnor 87 Metal Radiator Casing White C office 124 0.3 Negative Intact Radnor 88 CMU Wall Grey A office 124 3.1 Positive Intact Radnor 89 CMU Wall Grey A office 103 2.5 Positive Intact Radnor 90 CMU Wall Grey A Hall 2.9 Positive Intact Radnor 91 CMU Wall White A cr 15 0.1 Negative Intact Radnor 92 Metal Door Jamb White A cr 15 0.5 Negative Deteriorated Radnor 93 Wood Wall Shelf White A cr 15 0.1 Negative Intact Radnor 94 Wood Wall Shelf White A cr 15 0.2 Negative Intact Radnor 95 Metal Window Casing White A cr 15 0.3 Negative Intact Radnor 96 Metal Window Casing White A cr 15 0.2 Negative Intact Radnor 97 Wood Wall Shelf White A storage 0.2 Negative Intact Radnor 98 Wood Wall Shelf White A storage 0.4 Negative Intact Radnor 99 Wood Wall Shelf White A storage 0.3 Negative Intact Radnor 100 CMU Wall White A cr 16 0 Negative Intact Radnor 101 CMU Wall White B cr 16 0.1 Negative Intact Radnor 102 CMU Wall White D cr 16 0.1 Negative Intact Radnor 103 Metal Window Casing White C cr 16 0.3 Negative Deteriorated Radnor 104 Metal Window Sill White C cr 16 0.3 Negative Deteriorated Radnor 105 CMU Wall White C cr 16 0.2 Negative Intact Radnor 106 Metal Closet Casing Brown A cr 16 0.6 Negative Intact Radnor 107 Wood Closet Shelf White A cr 16 0.2 Negative Intact Radnor 108 Wood Closet White A cr 16 0 Negative Intact Radnor 109 Wood Wall Shelf White C cr 18 0.1 Negative Intact Radnor 110 Wood Wall Shelf White C cr 18 0.2 Negative Intact Radnor 111 Metal Window Casing White C cr 18 0.3 Negative Intact Radnor 112 Metal Door Casing Green A Exterior 0.1 Negative Deteriorated Radnor 113 Metal Door Green A Exterior 0.1 Negative Deteriorated Radnor 114 Wood Soffit White A Exterior 1.7 Positive Deteriorated Radnor 115 Metal Stair Railing Black A Exterior 0.2 Negative Deteriorated Radnor 116 Metal Stair Railing Black A Exterior 0.1 Negative Deteriorated Radnor 117 Metal Stair Railing Black A Exterior 1.9 Positive Deteriorated Radnor 118 Metal Window Sash White A Exterior 1.6 Positive Deteriorated Radnor 119 Metal Window Casing White A Exterior 2.4 Positive Deteriorated Radnor 120 Metal Door Casing Green A Exterior 0.2 Negative Deteriorated Radnor 121 Metal Door Green A Exterior 0.1 Negative Deteriorated Radnor 122 Metal Door Lintel Green A Exterior 1.7 Positive Deteriorated Radnor 123 Metal Column Black A Exterior 1.6 Positive Deteriorated Radnor 124 Metal Window Casing White D Exterior 1.3 Positive Deteriorated Radnor 125 Metal Window Casing White D Exterior 1.7 Positive Deteriorated Radnor 126 Metal Drain Pipe Brown D Exterior 2.1 Positive Deteriorated Radnor 127 Metal Stair Railing Black D Exterior 0.2 Negative Deteriorated Radnor 128 Metal Stair Railing Black D Exterior 1.8 Positive Deteriorated Radnor 129 Metal Door Casing Green D Exterior 0.3 Negative Deteriorated Radnor 130 Metal Door Casing Green D Exterior 0.2 Negative Intact Radnor 131 Metal Door Casing Green C Exterior 0.4 Negative Intact Radnor 132 Metal Window Casing White C Exterior 2.2 Positive Deteriorated Radnor 133 Wood Portico White C Exterior 2 Positive Deteriorated Radnor 134 Metal Drain Pipe Brown C Exterior 1.3 Positive Deteriorated Radnor 135 Metal Drain Pipe Brown C Exterior 1.3 Positive Deteriorated Radnor 136 Wood Door Header White C Exterior 1.8 Positive Deteriorated Radnor

Index Substrate Component 1 Component 2 Color Wall Code Room XRF Reading (mg/cm^2) Result Condition Address 137 Wood Wall Brown A Exterior 0.2 Negative Deteriorated Radnor 138 Metal Door Brown A Exterior 0.1 Negative Deteriorated Radnor 139 Metal Door Casing Brown A Exterior 0.1 Negative Deteriorated Radnor 140 Metal Wall Grey A Exterior 0.1 Negative Intact Radnor 141 Metal Door Grey A Exterior 0.1 Negative Deteriorated Radnor 142 Metal Stair Railing Black A Exterior 0.1 Negative Deteriorated Radnor 143 Wood Window Casing White A Exterior 2.8 Positive Deteriorated Radnor 144 Wood Soffit White A Exterior 3.3 Positive Deteriorated Radnor 145 SRM 2579 Red Calibration 0.9 146 SRM 2579 Red Calibration 1 147 SRM 2579 Red Calibration 1 148 SRM 2570 White Calibration 0

Attachment B: Labeled Floor Plan

Attachment C: Photographs

Picture 1: Green CMU Wall Picture 2: Tan CMU Wall Picture 3: Closet Shelving Components Picture 4: Black Tack Board

Picture 5: Door Casing/Jamb Picture 6: Door Casing/Jamb Picture 7: Wall Casings Picture 8: Grey CMU Walls

Picture 9: Soffit Picture 10: Stair Railing Picture 11: Window Casing/Sash Picture 12: Door Lintel

Picture 13: Column Picture 14: Gutter Drain Picture 15: Portico Picture 16: Door Header

Picture 17: White Tack Board Picture 18: Soffit