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    User name Jack

    Log entry time 13:40:58 on April 14, 2007

    Entry number 199017

    keyword=VESDA alerts

    The VESDAs were displaying elevated levels. The AHU and beam entrance tunnel heads had their ALERT LEDs lit. We reset the VESDAs and made an access to the hall. There did seem to be a very slight haze. Ed claimed the vacuum pumps were running ok. We did not see anything obviously wrong. The only other thought Ed had was it might be somehow connected to the increase in the outside humidity or rain. He felt it was a bit humid in the hall. Ed would know, he is a pretty sensitive kind of guy. If the VESDAs go up again, follow the instructions posted above them.