Document 0r9ameX4kvy11yQgY7p5zZRM

* i> * All Aberdeen Employees ivniravvNv Communication From: Dale: Subject: A. H. Sather April 2, 1985 VCM EMISSION/EXPOSURE REDUCTION A VBIA There has been some confusion about the procedures to be followed when readings are observed on the plant VCM fixed point monitor systems* I have attached a table which should clarify our respon sibilities in this very important area. It is important to note that these procedures are designed to satisfy our internal needs in terms of reducing VCM emissions and employee exposure, while at e time ensure our compliance with EPA and OSHA regulations. Any reading on a fixed point monitor, no matter how small, should be located and secured. The specific action steps outlined on the attached sheet are provided to ensure an appropriate response to high ambient concentrations of VCM. If you have any questions, please see your supervisor or me. A. H. Sather c: JF, JWW, DEPARTMENT HEADS, ALL SUPERVISORS VAB.0001215189 Condition 3 consecutive readings over 3 ppm for a single point or 1 reading over 10 ppm. 3 consecutive readings over 5 ppm for a single point. A known release of VCM or 3 consecutive readings over 10 ppm on any GC (eg. points 3, 4, 5 on the new unit GC) Actions Required 1) Clear the immediate area of all personnel. 2) Locate the source of the VCM leak. 3) Initiate action to elimi nate the source of VCM. 4) Re-admit personnel to the work area without use of respirators only after ambient VCM concentra tions are below the 3 ppm action level. 1) The four action steps given above must be accomplished. 2) These conditions are defined as an "EPA leak" and a leak form must be completed by Operations and/or Lab personnel (depending on which GC) 1) Sound the vapor release alarm. 2) Clear the area of all personnel. 3) Initiate action to locate and eliminate the source of VCM. 4) Complete documentation of "EPA leak". 5) Re-admit personnel to the work area without use of approved respirators only after ambient VCM concen trations are below the action level. k VAB.0001215190