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NYC-WTC_000234660
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NYC 9/11 Public Portal Document
PS 150 M - 334 GREENWICH STREET SUMMARY LEAD-IN-DUST-WIPE SAMPLE Date # of Sample Lead Concentration (pg/ft") 11/29/01 60 Laboratory analysis indicated that one (1) dust wipe collected on the floor area (+ 4 blanks) contained >40 ng/ft" of lead from the following location: • 2"^ floor girl’s toilet = 103.2 ug/ft^
Laboratory analysis indicated that five (5) dust wipe collected on the window wells contained >250 ug/ft^ of lead from the following locations: • Rooms 501 (2"'* window) = 521.2 ug/ft* • 502 (2"‘‘ window) = 1274.7 ug/tf • 403 (4“’ window) = 947 ug/ft^ • 3 floor corridor (6* window) = 1627.8 ug/ft^ ■ r‘ floor foyer (5* window^) = 1570.4 ug/ft^
Lead concentration in the blanks were below the detection limit.______________ 11/30/01 59 Laboratory analysis indicated that one (1) dust wipe collected on tlie window well ( + 6 blanks) contained >250 ug/f? of lead from the following location: (after cleanup) • Cafeteria window sill = 456.2 ug/ft^
Lead concentration in all other dust wipe samples collected was less than all applicable standards for lead in dust on floor and windowsills. Lead concentration in the blanks were below the detection limit._____________ 12/01/01 4 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in the blank was below the detection limit_______________ 01/21/02 4 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in the blank was below the detection limit 01/29/02 4 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in the blank was below the detection limit_______________ 02/04/02 4 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in tlie blank was below the detection limit_______________ 02/05/02 7 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in tlie blank was below the detection limit_______________ 02/11/02 4 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in the blank was below the detection limit_______________ 02/18/02 4 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in the blank was below the detection limit_______________ 02/25/02 4 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in the blank was below the detection limit._______________ 03/04/02 4 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in the blank was below the detection limit._______________ 03/11/02 4 Lead concentration in all dust wipe samples collected was less than all applicable (+1 Blank) standards for lead in dust on floor and windowsills. Lead concentration in the blank was below the detection limit.
CITY_21MC100_003291889
NYC-WTC_000234660
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NYC-WTC_000234660Source: NYC Law Department, mirrored locally
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