16 shared non-person entities · 1 shared topics · similarity 0.994
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NYC-WTC_000195796
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NYC 9/11 Public Portal Document
Sampling and Analytical Procedures for Lead, PAHs, Dioxin, Fibrous Glass, Silica, and Mercury
1. Sampling for lead, PAHs, dioxin, fibrous glass, crystalline silica and mercury shall be performed by the wipe sampling technician. A completed chain of custody must accompany all samples. A unique sample number shall be assigned to each sample. A complete written description and/or diagram shall clearly identify each sampling location.
2. Post cleaning air samples for fibrous glass and silica shall be collected concurrently with the asbestos clearance air sampling procedures specified herein. Five samples for fibrous glass and one sample for silica shall be collected in each apartment.
3. Wipe samples shall be collected before and after cleaning for lead, mercury, dioxin, and PAHs.
Prior to the cleaning activities, three wipe samples shall be collected for each of these parameters in each apartment. The sampling locations shall be a wall, a bare floor, and a counter or tabletop.
After cleaning activities, three wipe samples shall be collected for each of these parameters in each apartment. The sampling locations shall be a wall, a bare floor, and a counter or tabletop; preferably at the same location as the pre-cleaning samples.
4. The required sampling and analytical procedures are specified in Table 1.
Table 1: Sampling and Analytical Methods Parameter Description Sampling Methodology Analytical Method Lead Wipe samples HUD Appendix 13.1 EPA Method SW-846-6010B PAHs Wipe samples ASTM D6661-01 ASTM-6661-01 EPA SW-846-8270C Dioxin Wipe samples ASTM 6661-01 ASTM 6661-01 EPA Method SW-846-8290 Fibrous Glass Air samples NIOSH 7400 NIOSH 7400, Counting Method “B” Crystalline Silica Air samples NIOSH 7500 NIOSH 7500 (XRD)_______ Mercury Wipe samples HUDAppendix 13.1 EPA Method SW-846 7471A
Asbestos Air Sample Collection and Analysis
1. All asbestos air samples collected during clean-up activities shall be analyzed via TEM, The method of analysis and sampling methodologies shall be in accordance with the applicable sections of Title 15, Chapter 1 of the Rules of the City of New York, and AHERA.
2. A turnaround time of 24 hours is required for all samples. Failure to do so will result in nonpayment.
3. Asbestos clearance air samples shall be analyzed in accordance with the NIOSH 7400 Method, and analyzed by PCM followed by TEM. The laboratory shall report a PCMe value of all fibers greater than 5 microns in length. Therefore, the lab shall report PCM, TEM and PCMe values for each sample. 3 of 5 CITY_21MC100_003205008
NYC-WTC_000195798
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NYC-WTC_000195798Source: NYC Law Department, mirrored locally
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16 shared non-person entities · 1 shared topics · similarity 0.990
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