Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 901 - SOUND EMISSION STANDARDS AND LIMITATIONS FOR PROPERTY-LINE-NOISE-SOURCES
Section 901.102 - Sound Emitted to Class A Land
Current through Register Vol. 48, No. 38, September 20, 2024
a) Except as elsewhere provided in this Part, a person must not cause or allow the emission of sound during daytime hours from any property-line noise source located on any Class A, B or C land to any receiving Class A land that exceeds any allowable octave band sound pressure level specified in the following table, when measured at any point within the receiving Class A land. Sound pressure levels must be measured at least 25 feet from the property-line noise source.
|
Octave Band Center Frequency (Hertz) |
Allowable Octave Band Sound Pressure Levels (dB) of Sound Emitted to any Receiving Class A Land from |
||
|
Class C Land |
Class B Land |
Class A Land |
|
|
31.5 |
75 |
72 |
72 |
|
63 |
74 |
71 |
71 |
|
125 |
69 |
65 |
65 |
|
250 |
64 |
57 |
57 |
|
500 |
58 |
51 |
51 |
|
1000 |
52 |
45 |
45 |
|
2000 |
47 |
39 |
39 |
|
4000 |
43 |
34 |
34 |
|
8000 |
40 |
32 |
32 |
b) Except as provided elsewhere in this Part, person must not cause or allow the emission of sound during nighttime hours from any property-line noise source located on any Class A, B or C land to any receiving Class A land that exceeds any allowable octave band sound pressure level specified in the following table, when measured at any point within the receiving Class A land. Sound pressure levels must be measured at least 25 feet from the property-line noise source.
|
Octave Band Center Frequency (Hertz) |
Allowable Octave Band Sound Pressure Levels (dB) of Sound Emitted to any Receiving Class A Land from |
||
|
Class C Land |
Class B Land |
Class A Land |
|
|
31.5 |
69 |
63 |
63 |
|
63 |
67 |
61 |
61 |
|
125 |
62 |
55 |
55 |
|
250 |
54 |
47 |
47 |
|
500 |
47 |
40 |
40 |
|
1000 |
41 |
35 |
35 |
|
2000 |
36 |
30 |
30 |
|
4000 |
32 |
25 |
25 |
|
8000 |
32 |
25 |
25 |
