<div class="chunk-title">Sec. 8-41. - Construction standards.</div>
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               An applicant for the construction of a new building shall provide the zoning administrator
               with the necessary calculations to ensure that noise levels within the proposed building
               will not exceed the following standards:
               
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                  (1)
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                  Sleeping quarters (windows are assumed to be open unless other provisions are made
                  for adequate ventilation):
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                  a.
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                  Ldn 55 for more than an accumulation of 60 minutes in any 24 hour period;
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                  b.
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                  Ldn 45 for more than 30 minutes during night-time sleeping hours from 11:00 p.m. to
                  7:00 a.m.; and
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                  c.
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                  Ldn 45 for more than an accumulation of eight hours on any 24-hour period.
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                  (2)
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                  Nonsleeping quarters (all structures) (windows are assumed to be open unless other
                  provisions are made for adequate ventilation):
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                  a.
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                  <span class="ital">Normally acceptable.</span> Ldn 65 for not more than eight hours per 24-hour period.
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                  b.
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                  <span class="ital">Acceptable.</span> Ldn 45 for not more than 30 minutes per 24-hour period.
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                  (3)
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                  Insulation between dwelling units. Floor and dividing walls between attached dwelling
                  units shall have a sound transmission class (STC) of greater that 45.
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               (Ord. of 5-21-2001, art. II, Â§ 4)
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