NYC-WTC_000234627

NYC 9/11 Public Portal Document STUYVESANT HIGH SCHOOL. LEAD-IN-WIPE-DUST MERCURY PCB’S FIBERGLASS | HYDROCARBONS DIOXINS WIPE SAMPLE METALS SAMPLE Date # of Tead Lead WVercury Concentration | Range of Range of Its Indoor Outdoor Tndoor Plenum | Indoor Outdoor Sample | Cone. On | Cone. On Conc. (3 samples per | Indoor Cone. | Outdoor Cone. | (10 I Reading: Readi Surfaces Cone. Readings Reading Floor Window (mg/m*) day) (11 samples (1 sample day) | per day) (2 samples | (1 sample | Range of Conc. | (1 sample (2 samples (1 sample (git) Sill (wg/em2) per day) per day) per day) (2 samples per | per day) per day) per day) (ng/ft) day) (ng/m’) (mg/m') (mg/m’) (ng/m?) 118.01 18 Swimming Below No silica found No silica found Fiber Pool 46.1 Guidanee above detection above detection deleted on 14 Cafet, 45.8 Level limit_on 6 samples | limit samples. 1019.01 No silica found No silica found above detection above detection limit on 10 limit samples, 10:20:01 5 All five area samples and field blanks results are below the OSILA Action Level of 30 agi’ 1.24.01 21 Relow Below 9" Hoor Hallway [No silica found No fiberglass was Guidanee Guidanee 0.017 mgm above detection detected on 15 Level Level limit samples. 125.01 No silica found No silica found above detection above detection Limit Jimit W3 101 7 Below Below No silica found No silica found Non detected Guidanee Guidance above detection above defection Level Level limit limit 1-07-01 17 Below Below Non Detected Guidanee Guidance Level Level Hhex-Ol Tlexane = None defected | 0.00049 to 0.00019 | 0.0014 \luminum Below limit of 0.125 ppm above limits = 0.,001-0,002 | detection {above of detection Chromium defection 0.0002, limit) Th14.01 7 Below Below Below reporting Non Deected Texane None detected [0.001410 0.0014 0.087 Below Timitol [Chromium Gtidanee Guidance limit of 2 ug-sample 0.184 ppm above limits detection 41.0005 Level Level (above of detection Iron 0.004 detection limit) Te1S01 Room 635 — 0.023 | No silica found mgm above detection (Above Detection imu Linnt) 116/01 0.000191 to No silica found No silica found 0.0902 above detection above detection limit limit CITY_21MC100_003292950 NYC-WTC_000234631