NYC-WTC_000231976

NYC 9/11 Public Portal Document

Section 2 - Ambient Air Monitoring Program Revision No.: 0 130 Liberty Street Deconstruction Plan Date: September 7, 2005 Lower Manhattan Development Corporation

11.0 ELECTRONIC DATA MANAGEMENT AND REPORTING 11.1 Data Management

11.1.1 Real-Time Data

Real-time data (i.e., PMio and PM2.5) will be downloaded daily from data loggers using cellular telephone modems on each monitor. Ten-minute averages from each station will be transmitted to a central station. Daily plots of real-time data will be generated. Twenty-four hour averages of PMio and PM2.5 will be calculated using these data and included on the daily summaries posted on the LMDC website. Graphical presentation of PMio and PM2.5 data will be provided on a weekly basis. The gaseous mercury results will be noted on a form during the collection of data. These results will be hand-entered into the central station and included on the daily summaries posted on the LMDC website. The data from the meteorological station units will be recorded on a dedicated data logger, and telemetered back via cellular modems to the central computer.

11.1.2 Fixed Laboratory Data

Laboratory data will be received as hard copy and electronic data deliverables (EDD). EDDs associated with fixed laboratory analyses will be in Excel format. A spreadsheet will be provided to each laboratory for completion and to allow easy compilation of the data by TRC from all laboratories. The spreadsheet will provide results of the target parameters compared to the Target Air Quality Levels, 3x the Target Air Quality Levels, and the USEPA Site-Specific Trigger Levels. The laboratory will calculate all results using sample volumes provided by the Environmental Consultant.

A cumulative average will be generated after the first week of sampling. Results will subsequently be compared and rolled into this cumulative average. Daily summaries of all results will be posed on the LMDC’s website.

The spreadsheets associated with dioxin/furan results will include speciated results for each dioxin/furan congener, the TEEs used, and the TEQ. The spreadsheets associated with PAH results will include speciated results for each target PAH, the BAP-factors used, and the BAP- equivalent concentration. The spreadsheets associated with PCB results will include the results for individual Aroclors as well as the result for total PCBs.

Authorized personnel from USEPA Region 2, NYCDEC, NYSDEC and NYSDOL will also be provided direct access to the website where all air monitoring data will be posted. In addition, once the air monitoring data has been subject to QA/QC review validated results will also be posted on the website in a dedicated location for direct access by the general public.

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