Site control plan table of contents, undated

NYC 9/11 Public Portal Document

Staten Island Landfill Debris Disposal Operation Health and Safety Program

Direct reading instruments and colormetric detector tubes may be used to screen work activities for chemical parameters. While a useful tool for establishing sampling parameters, this types of sampling will not be used to establish negative exposure assessments.

Whole shift monitoring - This typically is based on an 8 hour work shift, since OSHA exposure limits often are based on an 8 hour time-weighted average. The subject work operation involves shifts of 12 hour shifts rather than 8 hours, and will require that exposure samples be collected over a 12 hour period. The interpretation of the data will require that OSHA exposure limits be amended to account for the longer work shift. Additionally, the exposure limits will have to take into account a 7- day workweek, rather than the standard 5-day workweek. Adjustments to exposure limits will be made on a case-by-case basis.

Short duration monitoring - Several chemical parameters have established exposure limits based on 15 or 30-minute exposures. This will require that samples for some parameters be collected during activities that have the greatest potential for exposure during a given work shift. In addition to 15 and 30-minute duration, some chemical parameters have established ceiling limits. Grab samples may be required to be collected to document compliance wth ceiling exposure limits.

Frequency- Due to the number of variables involved with assessing worker exposures specific to this project and the number of site workers, the establishment of comprehensive exposure data for a statistically significant percentage (25%) of the work force will be difficult, and can not feasibly be achieved in a single shift. Initially, exposure monitoring efforts will be concentrated on activities most likely to result in elevated exposures. These classifications include those work groups where employees spend the majority of their work shift handling debris, or otherwise working in close proximity to debris being handled.

4.7.2 Information Management And Dissemination

Air sample data, both perimeter and personnel exposure monitoring, will be summarized and disseminated accordingly. Data may be entered into a data base, which will be updated daily, will be

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