I think you meant to say built "before" 1979. I was at one of those public meetings. And actually, this is their strategy to save money. And I think it is probably wrong headed.
Yes, the light balasts before this date usually did contain PCBs and they are getting airborne. But to just deal with this and not the fact that about 30% of latex paints before this contained them, most of the old caulks did, many plastics and more, my concern is they are going to remove the balasts, declare the problem over, and leave some schools still with high PCB levels from other sources.
In a message dated 1/10/2011 1:02:15 PM Eastern Standard Time, PREDDEN**At_Symbol_Here**SPC.EDU writes:
Am I crazy thinking this is overkill, that you automatically need a complete lighting retrofit if the school was built after 1979?
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