Denver Office 8361 S. Sangre De Cristo Road, Suite 120 Littleton, CO Phone Fax May 28, 2013

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1 Denver Office 8361 S. Sangre De Cristo Road, Suite 120 Littleton, CO Phone Fax May 28, 2013 Mr. Moe Alcaron Denver Public Schools 1350 E. 33 rd Avenue Denver, Colorado SUBJECT: Lead-Based-Paint Inspection 951 Elati Street, Denver, Colorado Denver Public Schools West High School Project # Dear Mr. Alcaron, Enclosed is Farmer & Associates, Inc. (F&A) s Lead-Based-Paint Inspection Report for the Denver Public School s West High School located at 951 Elati Street, Denver, Colorado. If you have any questions or comments concerning this information, please feel free to call me at (303) Sincerely, Jennifer E. Day CO Lead Inspector/Assessor #18118 Branch Manager Farmer & Associates, Inc. Austin Baton Rouge Carrollton Denver Mesquite Richland Hills Tyler

2 LIMITED LEAD-BASED-PAINT INSPECTION Denver Public Schools West High School 951 Elati Street Denver, Colorado Prepared for: Denver Public Schools 1350 E. 33 rd Avenue Denver, Colorado Prepared by: Farmer & Associates, Inc S. Sangre De Cristo Road, Suite 120 Littleton, Colorado May 28, 2013 F&A Project No Austin Baton Rouge Carrollton Denver Mesquite Richland Hills Tyler

3 TABLE OF CONTENTS Page 1.0 EXECUTIVE SUMMARY OBJECTIVE SAMPLING METHODOLOGY XRF RESULTS CONCLUSIONS AND RECOMMENDATIONS LIMITATIONS... 2 APPENDICES: APPENDIX A XRF DATA SHEETS APPENDIX B LICENCES Austin Baton Rouge Carrollton Denver Mesquite Richland Hills Tyler

4 DPS West High School 951 Elati Street, Denver, Colorado May 28, 2013 Page EXECUTIVE SUMMARY Mr. Moe Alcaron authorized Farmer and Associates Inc. (F&A) to conduct a Lead-Based- Paint (LBP) Inspection of Denver Public School (DPS) West High School located at 951 Elati Street, Denver, Colorado. Ms. Jennifer Day of Farmer & Associates, Inc. (F&A) conducted the onsite inspection on May 23, This inspection is being conducted as part of the construction being conducted this summer under DPS Project #2075. Based on the XRF, the following surfaces contained lead-based paint in the areas inspected at a level above the HUD standard of 1.0 milligram per square centimeter of surface area or 0.5% by weight. Beige plaster painted walls in classrooms and hallways throughout the school. Gray metal painted stair rails throughout the school. Brown painted metal radiator 2 nd floor stairway (other radiators tested negative). Orange painted plaster walls in doorway to classroom on first floor. Black painted metal stair rail in halls throughout school. 2.0 OBJECTIVE F&A was contacted to perform a LBP Inspection of DPS West High School located at 951 Elati Street, Denver, Colorado. The purpose of the LBP Inspection was to confirm the presence or absence of LBP for a remodel/painting. 3.0 SAMPLING METHODOLOGY Lead-based paint was analyzed by a Niton hand held x-ray fluorescence (XRF) spectrum analyzer (Serial No ) that produces results for lead content in paint. Calibration checks were conducted at the beginning and end of the inspection and/or every four hours during use. The inspection was conducted in accordance with Housing and Urban Development (HUD) accepted scientific practices, industry standards and regulatory protocols. The HUD standard of 1.0 milligram per square centimeter of surface area was used to determine positive or negative results for lead based paint. 4.0 XRF RESULTS Based on the XRF, the following surfaces contained lead-based paint in the areas inspected at a level above the HUD standard of 1.0 milligram per square centimeter of surface area or 0.5% by weight. Beige plaster painted walls in classrooms and hallways throughout the school. Gray metal painted stair rails throughout the school. Brown painted metal radiator 2 nd floor stairway (other radiators tested negative). Orange painted plaster walls in doorway to classroom on first floor. Austin Baton Rouge Carrollton Denver Mesquite Richland Hills Tyler

5 DPS West High School 951 Elati Street, Denver, Colorado May 28, 2013 Page 2 Black painted metal stair rail in halls throughout school. Surfaces inspected that did not contain lead include: Brown painted metal radiators in stairways of halls (except 2 nd floor). Maroon painted metal lockers in hallways. Gray painted metal lockers in hallways. Beige painted concrete and drywall walls in classrooms and hallway of new wing (Rooms 225 to 232, 114 to 122). In some instances a null result may be shown. In this case the sample is retaken from the same location because the instrument did not obtain a reading on the first attempt. A null result may occur because the instrument was moved during the sample, or the shutter did not open for any reason. 5.0 CONCLUSIONS AND RECOMMENDATIONS According to OSHA 29 CFR Lead Standard, employers are required to comply with the standard during scraping, sanding, burning, sandblasting, demolition, or any intentional disturbance of surfaces with detectable levels of lead paint. During demolition activities, composite samples should be collected from building materials painted with lead-based paint that are scheduled for disposal. Composite samples should be submitted for Toxicity Characteristic Leachate Procedure (TCLP) analysis to characterize the waste for disposal. The U.S. Environmental Protection Agency s (EPA) Lead Renovation, Repair and Painting Rule (RRP) govern the work of professional remodelers in homes and public buildings where there is lead-based paint. In buildings built before 1978 that are inhabited or frequented by pregnant women or children under seven and are used as residential, multifamily structures or public buildings, these rules apply. They require lead-safe work practices and training for all workers who may come into contact with lead. If lead content is unknown, the worker must sample every component to be impacted during work or a lead inspection must be performed by a certified lead inspector to determine which components contain lead. Any worker who will disturb this surface must be lead trained and practice lead-safe work. 6.0 LIMITATIONS The professional Lead-Based-Paint Inspection service has been performed, our findings obtained and recommendations prepared in accordance with generally accepted principles and practices outlined by local, state, and federal agencies. This warranty is in lieu of all other warranties either expressed or implied. F&A is not responsible for the conclusions, opinions, or recommendations made by others based on our inspection, the field reconnaissance, and/or information derived from this report. Austin Baton Rouge Carrollton Denver Mesquite Richland Hills Tyler

6 DPS West High School 951 Elati Street, Denver, Colorado May 28, 2013 Page 3 It should be noted that any investigation cannot absolutely rule out the existence or presence of LBP at a given facility, especially facilities built prior to This evaluation has been based upon limited available prior subject site history, observable conditions and activities at the site, information provided, and XRF field analysis of samples collected during the site investigation. If you have any questions concerning this report, please do not hesitate to contact our office. F&A appreciates the opportunity to provide you with professional LBP services and hope we can provide assistance in the future. Respectfully, Jennifer E. Day CO Lead Inspector/Assessor #18118 Farmer & Associates, Inc. Austin Baton Rouge Carrollton Denver Mesquite Richland Hills Tyler

7 APPENDIX A XRF DATA SHEETS Austin Baton Rouge Carrollton Denver Mesquite Richland Hills Tyler

8 XRF RESULTS DENVER PUBLIC SCHOOLS - WEST HIGH SCHOOL 951 ELATI STREET, DENVER, COLORADO Reading No Site Floor Room Component Side Substrate Color Condition Results Depth Index PbC Units 1 SHUTTER_CAL 1.25 cps 2 CALIBRATE RED Positive mg / cm ^2 3 CALIBRATE RED Positive mg / cm ^2 4 CALIBRATE RED Positive mg / cm ^2 5 DPS West HS THIRD HALL WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 6 DPS West HS THIRD HALL WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 7 DPS West HS THIRD HALL STAIR RAIL A METAL GRAY INTACT Positive mg / cm ^2 8 DPS West HS THIRD HALL RADIATOR A METAL BROWN INTACT Negative mg / cm ^2 9 DPS West HS THIRD 309 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 10 DPS West HS THIRD 309 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 11 DPS West HS THIRD 309 WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 12 DPS West HS THIRD 308 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 13 DPS West HS THIRD 308 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 14 DPS West HS THIRD 307 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 15 DPS West HS THIRD 307 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 16 DPS West HS THIRD 307 WALL C PLASTER BEIGE INTACT Positive mg / cm ^2 17 DPS West HS THIRD 310 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 18 DPS West HS THIRD 310 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 19 DPS West HS THIRD 310 WALL C PLASTER BEIGE INTACT Positive mg / cm ^2 20 DPS West HS THIRD 306 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 21 DPS West HS THIRD 306 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 22 DPS West HS THIRD 311 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 23 DPS West HS THIRD 311 WALL C PLASTER BEIGE INTACT Positive mg / cm ^2 24 DPS West HS THIRD 305 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 25 DPS West HS THIRD 305 WALL B PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 26 DPS West HS THIRD 305 WALL B PLASTER WHITE INTACT Negative 1 0 mg / cm ^2 27 DPS West HS THIRD 305 WALL A PLASTER WHITE INTACT Negative mg / cm ^2 28 DPS West HS THIRD 312 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 29 DPS West HS THIRD 312 WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 30 DPS West HS THIRD HALL WALL B PLASTER BEIGE INTACT Positive 10 3 mg / cm ^2 31 DPS West HS THIRD HALL WALL B METAL MAROON INTACT Negative 1 0 mg / cm ^2 32 DPS West HS THIRD 322 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 33 DPS West HS THIRD 322 WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 34 DPS West HS THIRD 321 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 35 DPS West HS THIRD 321 WALL B PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 FARMER ASSOCIATES, INC.: MAY 23, 2013

9 XRF RESULTS DENVER PUBLIC SCHOOLS - WEST HIGH SCHOOL 951 ELATI STREET, DENVER, COLORADO Reading No Site Floor Room Component Side Substrate Color Condition Results Depth Index PbC Units 36 DPS West HS THIRD 321 WALL D PLASTER BEIGE INTACT Negative mg / cm ^2 37 DPS West HS THIRD 314 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 38 DPS West HS THIRD 314 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 39 DPS West HS THIRD 315 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 40 DPS West HS THIRD 315 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 41 DPS West HS THIRD 320 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 42 DPS West HS THIRD 320 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 43 DPS West HS THIRD 320 WALL D PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 44 DPS West HS THIRD 319 WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 45 DPS West HS THIRD 319 WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 46 DPS West HS THIRD 319 WALL C PLASTER BEIGE INTACT Positive mg / cm ^2 47 DPS West HS THIRD 316 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 48 DPS West HS THIRD 316 WALL B PLASTER BEIGE INTACT Negative mg / cm ^2 49 DPS West HS THIRD HALL WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 50 DPS West HS THIRD HALL WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 51 DPS West HS THIRD HALL STAIR RAIL A METAL GRAY INTACT Positive mg / cm ^2 52 DPS West HS THIRD HALL RADIATOR A METAL BROWN INTACT Negative mg / cm ^2 53 DPS West HS THIRD HALL WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 54 DPS West HS THIRD HALL WALL B METAL MAROON INTACT Negative 1 0 mg / cm ^2 55 DPS West HS THIRD HALL WALL B CONCRETE BEIGE INTACT Positive mg / cm ^2 56 DPS West HS THIRD HALL WALL B CONCRETE BEIGE INTACT Positive mg / cm ^2 57 DPS West HS THIRD 350 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 58 DPS West HS THIRD 350 WALL B PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 59 DPS West HS THIRD 350 WALL C PLASTER BEIGE INTACT Positive mg / cm ^2 60 DPS West HS THIRD 300 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 61 DPS West HS THIRD 337 WALL A CONCRETE BEIGE INTACT Negative mg / cm ^2 62 DPS West HS THIRD 337 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 63 DPS West HS THIRD 337 WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 64 DPS West HS THIRD 337 WALL D PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 65 DPS West HS THIRD 336 WALL A CONCRETE BEIGE INTACT Negative 1 0 mg / cm ^2 66 DPS West HS THIRD 336 WALL B PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 67 DPS West HS THIRD 336 WALL D PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 68 DPS West HS THIRD 335 WALL A CONCRETE PINK INTACT Negative mg / cm ^2 69 DPS West HS THIRD 335 WALL B PLASTER BLUE INTACT Negative mg / cm ^2 70 DPS West HS THIRD 335 WALL D CONCRETE PINK INTACT Negative 1 0 mg / cm ^2 FARMER ASSOCIATES, INC.: MAY 23, 2013

10 XRF RESULTS DENVER PUBLIC SCHOOLS - WEST HIGH SCHOOL 951 ELATI STREET, DENVER, COLORADO Reading No Site Floor Room Component Side Substrate Color Condition Results Depth Index PbC Units 71 DPS West HS THIRD HALL WALL D CONCRETE BEIGE INTACT Negative 1 0 mg / cm ^2 72 DPS West HS THIRD HALL WALL D CONCRETE BEIGE INTACT Negative mg / cm ^2 73 DPS West HS THIRD HALL WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 74 DPS West HS THIRD HALL WALL B METAL GRAY INTACT Negative mg / cm ^2 75 DPS West HS THIRD 345 WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 76 DPS West HS THIRD 345 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 77 DPS West HS THIRD 345 WALL A PLASTER ORANGE INTACT Negative mg / cm ^2 78 DPS West HS THIRD 344 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 79 DPS West HS THIRD 343 WALL A PLASTER BEIGE INTACT Positive 10 8 mg / cm ^2 80 DPS West HS THIRD 343 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 81 DPS West HS THIRD 342 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 82 DPS West HS THIRD 342 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 83 DPS West HS THIRD HALL WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 84 DPS West HS THIRD HALL STAIR RAIL B PLASTER GRAY INTACT Positive mg / cm ^2 85 DPS West HS THIRD HALL RADIATOR C METAL BROWN INTACT Negative mg / cm ^2 86 DPS West HS THIRD 341 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 87 DPS West HS THIRD 341 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 88 DPS West HS THIRD 340 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 89 DPS West HS THIRD 339 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 90 DPS West HS THIRD 324 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 91 DPS West HS THIRD 325 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 92 DPS West HS THIRD HALL WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 93 DPS West HS THIRD HALL WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 94 DPS West HS THIRD HALL RADIATOR B METAL BROWN INTACT Negative mg / cm ^2 95 DPS West HS THIRD HALL RADIATOR B METAL BROWN INTACT Negative mg / cm ^2 96 DPS West HS THIRD HALL WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 97 DPS West HS SECOND 217 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 98 DPS West HS SECOND 215 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 99 DPS West HS SECOND 215 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 100 DPS West HS SECOND 215 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 101 DPS West HS SECOND 215 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 102 DPS West HS SECOND 215 WALL B PLASTER ORANGE INTACT Negative 1 0 mg / cm ^2 103 DPS West HS SECOND 219 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 104 DPS West HS SECOND 214 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 105 DPS West HS SECOND 220 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 FARMER ASSOCIATES, INC.: MAY 23, 2013

11 XRF RESULTS DENVER PUBLIC SCHOOLS - WEST HIGH SCHOOL 951 ELATI STREET, DENVER, COLORADO Reading No Site Floor Room Component Side Substrate Color Condition Results Depth Index PbC Units 106 DPS West HS SECOND 220 WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 107 DPS West HS SECOND 205 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 108 DPS West HS SECOND 206 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 109 DPS West HS SECOND 206 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 110 DPS West HS SECOND 207 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 111 DPS West HS SECOND 207 STAIR RAIL A METAL GRAY INTACT Positive mg / cm ^2 112 DPS West HS SECOND 207 RADIATOR A METAL BROWN INTACT Negative mg / cm ^2 113 DPS West HS SECOND 209 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 114 DPS West HS SECOND 210 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 115 DPS West HS SECOND 211 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 116 DPS West HS SECOND 212 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 117 DPS West HS SECOND HALL WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 118 DPS West HS SECOND HALL WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 119 DPS West HS SECOND HALL WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 120 DPS West HS SECOND HALL WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 121 DPS West HS SECOND HALL WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 122 DPS West HS SECOND HALL WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 123 DPS West HS SECOND HALL WALL A CONCRETE BEIGE INTACT Negative mg / cm ^2 124 DPS West HS SECOND HALL WALL A CONCRETE BEIGE INTACT Negative 1 0 mg / cm ^2 125 DPS West HS SECOND 225 WALL A CONCRETE BEIGE INTACT Negative mg / cm ^2 126 DPS West HS SECOND 225 WALL D CONCRETE BEIGE INTACT Negative 1 0 mg / cm ^2 127 DPS West HS SECOND 226 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 128 DPS West HS SECOND 226 WALL D PLASTER BEIGE INTACT Negative mg / cm ^2 129 DPS West HS SECOND 227 WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 130 DPS West HS SECOND 227 WALL A DRYWALL BEIGE INTACT Negative 1 0 mg / cm ^2 131 DPS West HS SECOND 227 WALL B CONCRETE BEIGE INTACT Negative mg / cm ^2 132 DPS West HS SECOND 227 WALL C DRYWALL BEIGE INTACT Negative 1 0 mg / cm ^2 133 DPS West HS SECOND 229 WALL A CONCRETE BEIGE INTACT Negative 1 0 mg / cm ^2 134 DPS West HS SECOND 229 WALL A DRYWALL BEIGE INTACT Negative mg / cm ^2 135 DPS West HS SECOND 229 WALL C PLASTER BEIGE INTACT Negative mg / cm ^2 136 DPS West HS SECOND 230 WALL A CONCRETE BEIGE INTACT Negative 1 0 mg / cm ^2 137 DPS West HS SECOND 230 WALL D DRYWALL BEIGE INTACT Negative mg / cm ^2 138 DPS West HS SECOND 230 WALL B DRYWALL BEIGE INTACT Negative 1 0 mg / cm ^2 139 DPS West HS SECOND 231 WALL A DRYWALL BROWN INTACT Negative 1 0 mg / cm ^2 140 DPS West HS SECOND 231 WALL D DRYWALL BROWN INTACT Negative 1 0 mg / cm ^2 FARMER ASSOCIATES, INC.: MAY 23, 2013

12 XRF RESULTS DENVER PUBLIC SCHOOLS - WEST HIGH SCHOOL 951 ELATI STREET, DENVER, COLORADO Reading No Site Floor Room Component Side Substrate Color Condition Results Depth Index PbC Units 141 DPS West HS SECOND 232 WALL A DRYWALL BEIGE INTACT Negative 1 0 mg / cm ^2 142 DPS West HS SECOND 232 WALL D DRYWALL BEIGE INTACT Negative 1 0 mg / cm ^2 143 DPS West HS SECOND HALL WALL B PLASTER BEIGE INTACT Negative mg / cm ^2 144 DPS West HS SECOND HALL WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 145 DPS West HS SECOND HALL WALL D METAL GRAY INTACT Negative 1 0 mg / cm ^2 146 DPS West HS SECOND 239 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 147 DPS West HS SECOND 238 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 148 DPS West HS SECOND 237 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 149 DPS West HS SECOND 236 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 150 DPS West HS SECOND 235 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 151 DPS West HS SECOND 234 WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 152 DPS West HS SECOND 234 STAIR RAIL A METAL GRAY INTACT Positive mg / cm ^2 153 DPS West HS SECOND 234 RADIATOR A METAL BROWN INTACT Positive mg / cm ^2 154 DPS West HS FIRST 126 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 155 DPS West HS FIRST 127 WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 156 DPS West HS FIRST 127 WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 157 DPS West HS FIRST HALL WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 158 DPS West HS FIRST HALL WALL D PLASTER ORANGE INTACT Positive mg / cm ^2 159 DPS West HS FIRST HALL WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 160 DPS West HS FIRST 122 WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 161 DPS West HS FIRST 122 WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 162 DPS West HS FIRST 120 WALL A DRYWALL BEIGE INTACT Negative 1 0 mg / cm ^2 163 DPS West HS FIRST 120 WALL A DRYWALL BEIGE INTACT Negative 1 0 mg / cm ^2 164 DPS West HS FIRST 120 WALL C CONCRETE BEIGE INTACT Negative mg / cm ^2 165 DPS West HS FIRST 119 WALL A DRYWALL BEIGE INTACT Negative 1 0 mg / cm ^2 166 DPS West HS FIRST 119 WALL A CONCRETE BEIGE INTACT Negative mg / cm ^2 167 DPS West HS FIRST HALL WALL B PLASTER BEIGE INTACT Negative mg / cm ^2 168 DPS West HS FIRST 114 WALL A CONCRETE BEIGE INTACT Negative 1 0 mg / cm ^2 169 DPS West HS FIRST 114 WALL D DRYWALL BEIGE INTACT Negative 1 0 mg / cm ^2 170 DPS West HS FIRST 129 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 171 DPS West HS FIRST HALL WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 172 DPS West HS FIRST HALL WALL B METAL GRAY INTACT Negative mg / cm ^2 173 DPS West HS FIRST 100 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 174 DPS West HS FIRST 101 WALL A PLASTER BEIGE INTACT Negative mg / cm ^2 175 DPS West HS FIRST 101 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 FARMER ASSOCIATES, INC.: MAY 23, 2013

13 XRF RESULTS DENVER PUBLIC SCHOOLS - WEST HIGH SCHOOL 951 ELATI STREET, DENVER, COLORADO Reading No Site Floor Room Component Side Substrate Color Condition Results Depth Index PbC Units 176 DPS West HS FIRST 110 WALL A PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 177 DPS West HS FIRST 110 WALL D PLASTER BEIGE INTACT Negative 1 0 mg / cm ^2 178 DPS West HS FIRST 110 WALL D PLASTER BEIGE INTACT Positive mg / cm ^2 179 DPS West HS FIRST 109 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 180 DPS West HS FIRST 108 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 181 DPS West HS FIRST 107 WALL A PLASTER BEIGE INTACT Positive mg / cm ^2 182 DPS West HS FIRST HALL WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 183 DPS West HS FIRST 103 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 184 DPS West HS FIRST 104 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 185 DPS West HS FIRST 105 WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 186 DPS West HS FIRST HALL WALL B PLASTER BEIGE INTACT Positive mg / cm ^2 187 DPS West HS FIRST HALL WALL B METAL GRAY INTACT Negative mg / cm ^2 188 DPS West HS FIRST HALL STAIR RAIL B METAL BLACK INTACT Positive mg / cm ^ cps 190 CALIBRATE RED Positive mg / cm ^2 191 CALIBRATE RED Positive mg / cm ^2 192 CALIBRATE RED Positive mg / cm ^2 KEY CALIBRATE POSITIVE NEGATIVE NULL FARMER ASSOCIATES, INC.: MAY 23, 2013

14 APPENDIX B LICENCES Austin Baton Rouge Carrollton Denver Mesquite Richland Hills Tyler

Table 1. Air Sampling Results (ng/m 3 ) for Building D (100 and 200, Mako Shark) at MHS Malibu High School Malibu, California

Table 1. Air Sampling Results (ng/m 3 ) for Building D (100 and 200, Mako Shark) at MHS Malibu High School Malibu, California Table 1. Air Results (ng/m 3 ) for Building D (100 and 200, Mako Shark) at MHS Placard ID (August Lights Off Lights On (December 28, Summer 2015 Summer 2016 Summer 2017 101A 101 (west) 101B 101 (east)