Document 102nw5N3oM38BbpMNnK1bVjZd

AR226-2046 Roger J . Zipfel 10/14/99 11:57 PM i To: ec: . Subject: Chart of High levels o f C-8 on B*162 & B-12 4 Roofs PPE FOR ROOF AREAS OB B-124 & B-162 HIGH C-8 LEVELS C-8 IB AIR DATA * B-162 LEVELS - DP TO 4.3 PPB VS. 0.56 PPB AEL * B-124 LEVELS - DP TO 2.75 PPB ALSO HAVE MIST LADER WITH C-8 FROM EXHAUST STACK PPE REQUIREMENTS * B-162 ROOF - BREATHING PROTECTION REQUIRED AT HIGH LOCATIONS * B-124 ROOF - BREATHING AND SKIN PROTECTION REQUIRED FOR EXTENDED (MORE THAN 10 MIN) STAY CAUSE - HIGH EMISSIONS FROM C-8 SCRUBBER EXHAUST SCRUBBER EXHAUST GENERATES MIST ON HUMID OCCASIONS MIST HAS FOAM LIKE APPEARANCE. MIST MAYBE CAUSE OF HIGH SAMPLE RESULTS. AFFECT ON C-8 SCRUBBER FILTER PROJECT * INCREASE COSTS BY $5000 DUE TO EXTRA PPE REQUIREMENTS E1D081904 RJZ014339