AUTHORITY: Implementing Section 25 and authorized by Section 27 of the Environmental Protection Act [415 ILCS 5/25 and 27].
SOURCE: Originally filed as Part 2 of Chapter 8: Noise Pollution, effective August 10, 1973; amended at 2 Ill. Reg. 27, p. 223, effective June 26, 1978; amended at 5 Ill. Reg. 6371, effective June 1, 1981; amended at 5 Ill. Reg. 8533, effective August 10, 1981; amended at 6 Ill. Reg. 10960, effective September 1, 1982; codified at 7 Ill. Reg. 13646; amended at 7 Ill. Reg. 14519, effective October 17, 1983; amended in R83-35 at 8 Ill. Reg. 18893, effective September 25, 1984; amended in R83-33, 26, 29, 30 and R83-34 at 9 Ill. Reg. 1405, effective January 17, 1985; Section 901.105(f)(1), (2) and (3) recodified to Sections 901.110, 901.111 and 901.112 at 9 Ill. Reg. 7147; amended in R83-25, 31 and 32 at 9 Ill. Reg. 7149, effective May 7, 1985; amended in R83-7 at 11 Ill. Reg. 3136, effective January 28, 1987; amended in R04-11 at 28 Ill. Reg. 11910, effective July 30, 2004; amended in R03-9 at 30 Ill. Reg. 5533, effective March 10, 2006; amended in R06-11 at 31 Ill. Reg. 1984, effective January 12, 2007; amended in R14-22 at 39 Ill. Reg. 16264, effective December 2, 2015; amended in R18-19 at 42 Ill. Reg. 20453, effective November 1, 2018.
Section 901.101 Classification of Land According to Use
a) The land use classification system for applying the numeric sound standards of this Part is based on the Land-Based Classification Standards (LBCS) (Jeer, Sanjay; 2001; Land-Based Classification Standards; online at https://www.planning.org/lbcs; American Planning Association: Chicago, Illinois). The LBCS applicable to this Part is in Appendix B.
b) Class A land includes all land used as specified by LBCS Codes 1000 through 1340, 2410 through 2455, 5200 through 5230, 5500, 6100 through 6145, 6222, 6510 through 6530, and 6568 through 6600.
c) Class B land includes all land used as specified by LBCS Codes 2100 through 2336, 2500 through 2720, 3500 through 3600, 4220 through 4243, 5100 through 5160, 5300 through 5390, 5400, 6147, 6210 through 6221, 6300 through 6320, 6400 through 6430, 6560 through 6567, 6700 through 6830, and 7100 through 7380.
d) Class C land includes all land used as specified by LBCS Codes 3100 through 3440, 4120 through 4180, 4210 through 4212, 4300 through 4347, 7400 through 7450, 8000 through 8500, and 9100 through 9520.
e) A parcel or tract of land used as specified by LBCS Code 9100, 9400, or 5500, when adjacent to Class B or C land, may be classified similarly by action of a municipal government with zoning jurisdiction over that land. Despite any subsequent changes in actual land use, land so classified retains the B or C classification until the municipal government removes the classification adopted by it.
(Source: Amended at 42 Ill. Reg. 20453, effective November 1, 2018)
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)