Contract scope specifying locations, methods, and reporting timelines for continuous ambient air monitoring.
NYC-WTC_000140575Folder label: “SCOPES OF WORK IN DOOR AIR & CLEANING”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
A. Scope of Work
Ambient Air Sampling
Location Type 1. High School for Economics & Finance Between 90 & 100 Trinity Place Ambient 2. IS 89 201 Warren Street Ambient 3. PS 234_______________________ 292 Greenwich Street Ambient 4. Stuyvesant High School 345 Chambers Street Ambient
1. Continuous sampling for 8 hours at street level. The exact location will be identified by the NYCDEP on the first day of sampling. Periodic examination of filters to ensure filter does not become overloaded. (Flow rate at 2.5 liters/minute; Minimum sampling volume 1200 liters.)
2. Sample analysis utilizing PCM NIOSH 7400 method. Any levels found to be above 0.01 f/cc must be read utilizing AHERA method.
3. Sampling at the above locations to commence on October 15,2001.
4. The PCM results shall be faxed to the NYC DEP (fax 718 595- 3744) by 9:00 a.m. the day after sample collection. The TEM results shall be faxed to the NYCDEP within 12 hours of the PCM results.
5. Sampling shall continue daily until notification by the NYC DEP to terminate sampling.
6. NYCDEP contact ihformation as follows: R. Radhakrishnan (718) 595-3718 Penny Theodorellys (718) 595-3657
B. Time Frame
At this it is estimated that the duration for the air monitoring is about one month.
C. Cost
The cost estimate for one month operation is about $200,000.
D, Justification The air monitoring request came from OEM and was discussed with our Commissioner who approved this.
NYC-WTC_000140575
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