Burlington High School 52 Institute Road Burlington, Vermont Indoor Air Sampling Summary for PCBs Sampling Results Summary for Buildings A and B Date Sampled: September 2-3, 2020 Laboratory Report Received: September 10, 2020 Field Sample No. Sample Description Results Building A A-106-25 A-Glock-31 A-205A-32 A-203-33 A-ER-East-34 A-103-35 A-Gym-46 A-318-13 A-Café-15 A-Café-HF-54 A-312E-11 A-Aud-14 A-304-12 A-415-08 B-103-09 B-104B-17 B-103C-23 B-209-16 B-202-38 C-102-10 Chorus Girls’ Locker Room Custodial Break Room Aviation Shop Weight Room Auto Body Gymnasium Wood Shop Cafeteria Cafeteria Kitchen Auditorium Office On Top Program Building B Library IT Library Office Foreign Language Classroom Art Room Building C Education Classroom 102 260 ng/m3 14 ng/m3 170 ng/m3 81 ng/m3 12 ng/m3 38 ng/m3 1.1 ng/m3 38 ng/m3 8.2 ng/m3 4 ng/m3 12 ng/m3 17 ng/m3 24 ng/m3 22 ng/m3 47 ng/m3 27 ng/m3 270 ng/m3 110 ng/m3 100 ng/m3 130 ng/m3 A and B Building Laboratory Results link: https://www.bsdvt.org/wpcontent/uploads/2020/09/rlm_20I0221-Contest_Final-FINAL-09-10-20-1536.pdf A-E Building diagram of sample locations and results: https://www.bsdvt.org/wpcontent/uploads/2020/09/rlm_Burlington_Sample-Results_Diagram_20200914.pdf Burlington High School 52 Institute Road Burlington, Vermont Indoor Air Sampling Summary for PCBs Sampling Results Summary for C, D and E Buildings Date Sampled: September 2-3, 2020 Laboratory Report Received: September 14, 2020 Field Sample No. C-110-37 C-113-22 C-113-53 HF C-205-24 C-211-36 C-208-39 D-102-05 D-106-04 D-200-01 D-203-02 D-203-HF-49 D-206-03 E-104-42 E-201-40 E-206-47 E-206-HF-52 E-301-44 E-304-41 E-304-43 (Dup) E-310-45 EXT – FH-27 EXT- EH-29 Blank - 20 Blank - 55 Sample Description Building C Education Classroom 110 Education Classroom 113 Education Classroom 113 Education Classroom 205 Education Classroom 211 Education Classroom 208 Building D Education Classroom 102 Home Economics Education Classroom 200 Education Classroom 203 Education Classroom 203 Education Classroom 206 Building E Science Classroom 104 Science Classroom 201 Science Classroom 206 Science Classroom 206 Science Classroom 301 Science Classroom 304 Science Classroom 304 Staff Room Exterior & Blanks Exterior Ambient Exterior Ambient Blank Blank Results 130 ng/m3 95 ng/m3 38 ng/m3 86 ng/m3 60 ng/m3 78 ng/m3 150 ng/m3 300 ng/m3 140 ng/m3 89 ng/m3 11 ng/m3 82 ng/m3 67 ng/m3 70 ng/m3 58 ng/m3 16 ng/m3 54 ng/m3 100 ng/m3 110 ng/m3 78 ng/m3 ND ND ND ND C, D and E Building Laboratory Results link: https://www.bsdvt.org/wp-content/uploads/2020/09/C-Dand-E-Building-Laboratory-Results.pdf A-E Building diagram of sample locations and results: https://www.bsdvt.org/wpcontent/uploads/2020/09/rlm_Burlington_Sample-Results_Diagram_20200914.pdf Burlington High School 52 Institute Road Burlington, Vermont Indoor Air Sampling Summary for PCBs Sampling Results Summary for Building F Date Sampled: September 2-3, 2020 Report Received: September 9, 2020 Field Sample No. F-312-06 F-312-Dup-07 F-312-HF-51 F-304-18 F-309-26 F-205-30 F-210-28 F-214-21 F-103-19 Sample Description Building F Child Care Center – Room F-312 Child Care Center – Room F-312 Child Care Center – Room F-312 Health Sciences – Room F-304 Criminal Justice – Room F-309 Metals Shop Jewelry – Room F-205 Welding Shop – Room F-210 Construction Trades Shop – Room F-214 Automotive Shop – Rom F-103 Results 720 ng/m3 640 ng/m3 160 ng/m3 400 ng/m3 760 ng/m3 1300 ng/m3 5800 ng/m3 5300 ng/m3 1900 ng/m3 F Building Laboratory Results link https://www.bsdvt.org/wp-content/uploads/2020/09/20I0220Contest_Final-FINAL-09-09-20-1606.pdf F Building diagram of sample locations and results https://www.bsdvt.org/wpcontent/uploads/2020/09/rlm_Building-F-from-Appendix-D_rlm_revised_Burlington_Proposed-SamplingLoca.._.pdf EPA Advisory concentrations Website: https://19january2017snapshot.epa.gov/pcbs/exposure-levels-evaluating-polychlorinated-biphenyls-pcbsindoor-schoolair_.html#:~:text=EPA%20recommends%20that%20the%20concentrations%20of%20PCBs%20in,can%20 be%20calculated%20if%20sufficient%20data%20are%20available