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1 actual levels we talk about here, for the first <br /> 2 time here in July the State of Wisconsin enacted <br /> 3 a section in the Wisconsin Administrative Code <br /> 4 in the Department of Industry, Labor and Human <br /> 5 Relations. <br /> 6 As a general rule they have different <br /> 7 frequencies involved here= in other words, how <br /> 8 many cycles I put by your building in a second. <br /> 9 So I have 40 hertz or below for drywall <br /> 10 structure, .75 inches that's for particle <br /> 11 velocity for a drywall. We consider that a <br /> 12 modern home. <br /> 13 MS. BISGARD: I wonder if maybe -- I <br /> 14 see a lot of us having trouble seeing what <br /> 15 you' re saying, Maybe you can answer some <br /> 16 questions rather if people have questions in the <br /> 17 audience. <br /> 18 MR, BINGHAM: Can I just say some <br /> 19 really general things then, okay. <br /> 20 MS. BISGARD: Real general. <br /> 21 MR. BINGHAM: And zip right through it. <br /> 22 I 'm trying to say a particle velocity of 12 is <br /> 23 going to give you some rocks falling in tunnels, <br /> 24 underlying rocks falling in tunnels. <br /> 25 Two is a safe blasting level. We're <br /> thy 31 <br /> * * * CAPITOL CITY REPORTERS * * * <br />