634.06   IMMEDIATE THREATS TO HEALTH AND WELFARE.
   (a)   No person shall operate, cause to be operated, or permit on public or private property, any source of continuous and/or impulsive sound in such a manner as to create a sound level which exceeds the limits set forth in Table 2 or Table 3 when measured at a distance of fifty feet or fifteen meters from such source.
TABLE 2
CONTINUOUS SOUND LEVELS WHICH POSE AN IMMEDIATE
THREAT TO HEALTH AND WELFARE (MEASURED AT 50 FEET OR 15 METERS)*
Sound Level Limit (dBA)
Duration
90
24 hrs.
93
12 hrs.
96
6 hrs.
99
3 hrs.
102
1.5 hrs.
105
45 min.
108
22 min.
*Use equal energy time-intensity trade-off if level varies; find energy equivalent over twenty-four hours.
 
 
TABLE 3
IMPULSIVE SOUND LEVELS WHICH POSE AN IMMEDIATE
THREAT TO HEALTH AND WELFARE (MEASURED AT 50 FEET OR 15 METERS)
Sound Level Limit (dB)
Number of Repetitions per 24-Hour Period
145
1
135
10
125
100
 
   (b)   Whoever violates this section is guilty of a misdemeanor of the fourth degree. A separate offense shall be deemed committed each day during or on which a violation occurs or continues. Punishment shall be as provided in Section 698.02.
(Ord. 199-79. Passed 12-3-79.)