(a) Irrespective and independent of whether or not a source of sound constitutes a violation of any of the provisions of Section 634.04, 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 that 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 POSING AN IMMEDIATE THREAT TO HEALTH AND WELFARE (MEASURED AT FIFTY FEET OR FIFTEEN METERS)*
CONTINUOUS SOUND LEVELS POSING AN IMMEDIATE THREAT TO HEALTH AND WELFARE (MEASURED AT FIFTY FEET OR FIFTEEN METERS)*
Sound Level Limit (dBA) Duration
90 24 hours
93 12 hours
96 6 hours
99 3 hours
102 1.5 hours
105 45 minutes
108 22 minutes
*Use equal energy time-intensity trade-off if level varies; find energy equivalent over twenty-four hours.
TABLE 3.
IMPULSIVE SOUND LEVELS POSING AN IMMEDIATE THREAT TO HEALTH AND WELFARE (MEASURED AT FIFTY FEET OR FIFTEEN METERS)
IMPULSIVE SOUND LEVELS POSING AN IMMEDIATE THREAT TO HEALTH AND WELFARE (MEASURED AT FIFTY FEET OR FIFTEEN METERS)
Sound Level Limit (dB) Number of Repetitions Per
Twenty Four Hour Period
Twenty Four Hour Period
145 1
135 10
125 100
(b) Whoever violates this section is guilty of a misdemeanor of the third 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. 84- 42. Passed 7-16- 84.)