TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE H: NOISE
CHAPTER I: POLLUTION CONTROL BOARD
PART 901 SOUND EMISSION STANDARDS AND LIMITATIONS FOR PROPERTY-LINE-NOISE-SOURCES
SECTION 901.102 SOUND EMITTED TO CLASS A LAND


 

Section 901.102  Sound Emitted to Class A Land

 

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

 

(Source:  Amended at 42 Ill. Reg. 20453, effective November 1, 2018)