Con Edison contact information sheet, Sep 2001

NYC 9/11 Public Portal Document

MONITORING EQUIPMENT: Specify by task, indicate type as necessary. Attach additional sheets as necessary.

INSTRUMENT TASK ACTION LEVELS

Photoionization Detector ()1 (x)2 Parameter: Total Volatile Organics (x)3 Type: Thermo OVM Model 580B PPL () 11.7 eV lamp Level At Concentration () 10.2 eV lamp D Background - 5.0 ppm (x) 10.6 eV lamp C 5.0 ppm to 50 ppm above background B 50 - 500 ppm above background ( ) Not needed

COMMENTS: All JWC field personnel are routinely trained and possess extensive experience in the calibration and proper use of the PID, which will be used at the site. The PID will be calibrated at the start of each workday on-site with the calibration results recorded in the field book. The Thermo OVM Model 580B was factory calibrated in November 1999.

Instrument to be calibrated to Action levels must be sustained for 15 minutes at the breathing zone to justify implementing specific PPL. The above action levels only apply if types of contaminants are unknown. If contaminants are known, contaminant-specific exposure data will be used to determine action levels. Background to TLV for specific compound will justify use of Level D PPL. TLV to compound-specific STEL or 3 x TLV will justify use of Level D PPL for 15 minutes only. If concentrations between TLV and STEL/3 x TLV are maintained for greater than 15 minutes. Level C will be implemented. Level B action levels will be determined on a project-specific basis. Project manager will be notified of any upgrade of PPL.

TASK ACTION LEVELS Flame Ionization Detector ()1 ()2 Parameter: Total Volatile Organics ()3 Type: OVA PPE Level At Concentration D Background - 5.0 ppm C 5.0 ppm to 50 ppm above background B 50 - 500 ppm above background

(x) Not needed

COMMENTS: Action levels must be sustained for 15 minutes at the breathing zone to justify implementing specific PPL. The above action levels only apply if types of contaminants are unknown. If contaminants are known, contaminant-specific exposure data will be used to determine action levels. Background to TLV for specific compound will justify use of Level D PPL. TLV to compound-specific STEL or 3 X TLV will justify use of Level D PPL for 15 minutes only. If concentrations between TLV and STRL or 3 x TLV are maintained for greater than 15 minutes, Level C will be implemented. Level B action levels will be determined on a project-specific basis. Project manager will be notified of any upgrade of PPL.

TASK Detector Tubes 01 02 Contaminant TLV STEL Tube Type ()3 Type: Draeger

(x) Not needed

7 WTC HASP 9

NYC-WTC_000165909