Marion City Zoning Code

ARTICLE XV

Performance Standards

§ 625-57 Purpose.

This chapter permits specific uses in specified districts, and these performance standards are designed to limit, restrict, and prohibit the effects of those uses outside their premises or district. No structure, land, or water shall hereafter be used except in compliance with the district regulations and with the following performance standards.

§ 625-58 Sound.

The volume of sound inherently and recurrently generated shall not exceed the following standards at any point along the boundaries of the zone in which the use is located:

Objectionable sounds of an intermittent nature shall be controlled so as not to become a nuisance to adjacent uses.

Maximum sound-pressure levels shall be measured with a sound-level meter and associated octave band analyzer conforming to standards prescribed by the American Standards Association and shall not exceed the values for octave bands lying within the several frequency limits given in the following table after the application of appropriate corrections:

	B-1 and B-2 Districts
	Frequency Ranges Containing Standard Octave Bands in Cycles Per Second	Octave Band Sound-Pressure Level in Decibels
	0 to 74	72
	75 to 149	67
	150 to 299	59
	300 to 599	52
	600 to 1,199	46
	1,200 to 2,399	40
	2,400 to 4,800	34
	Above 4,800	32

	Type of Operation or Noise	Correction in Decibels
	Daytime operation only	+5
	Noise of impulsive character (e.g., hammering)	-5
	Noise of periodic character (e.g., hum or screech)	-5

	Manufacturing District
	Frequency Ranges Containing Standard Octave Bands in Cycles Per Second	Octave Band Sound-Pressure Level in Decibels
	0 to 74	79
	75 to 149	64
	150 to 299	66
	300 to 599	59
	600 to 1,199	53
	1,200 to 2,399	47
	2,400 to 4,800	41
	Above 4,800	39

	Type of Operation or Noise	Correction in Decibels
	Daytime operation only	+5
	Noise of impulsive character (e.g., hammering)	-5
	Noise of periodic character (e.g., hum or screech)	-5

§ 625-59 Vibration.

An operation which creates vibrations that can be measured without instruments, e.g., heavy drop forges and heavy hydraulic surges, shall be set back:

In all B Districts a distance of not less than 500 feet from all lot lines, except where a lot line abuts a M District in which case no setback is required.

In an M District, a distance of not less than 500 feet from the district boundaries.

§ 625-60 Radioactivity.

No operation shall be permitted which causes radioactivity in violation of Title 10, Chapter 1, Part 20, Code of Federal Regulations, Standards for Protection Against Radiation, dated June 16, 1957, or any subsequent revisions or amendments.

§ 625-61 Odor.

In all B Districts, no emission of odorous gas or other odorous matter in such quantity as to be readily detectable at any point along lot lines without use of instruments shall be permitted.

In an M District, no emission of odorous gas or other odorous matter in such quantity as to be readily detectable at any point along district boundaries without use of instruments and a public nuisance or hazard beyond lot lines shall be permitted.

§ 625-62 Toxic or noxious matter.

No discharge beyond lot lines of any toxic or noxious matter in such quantity as to be detrimental to or endanger the public health, safety, comfort, or welfare, or cause injury or damage to property or business, shall be permitted.

§ 625-63 Glare.

No direct or reflected glare from any M District shall be detectable from any R District boundary.

§ 625-64 Heat.

No direct or reflected heat from any M District shall be detectable from any R or B District boundary.

§ 625-65 Dust.

No solid or liquid particles shall be emitted in concentrations exceeding 0.3 grain per cubic foot of the conveying gas or air.

§ 625-66 Fly ash.

No emission of fly ash in excess of the quantity specified in the following table shall be permitted:

	Heat in Fuel Burned (British thermal units per hour)	Fly Ash Rate of Emission (pounds per hour)
	1,000,000	1
	100,000,000	100
	400,000,000	330
	1,000,000,000	750
	2,000,000,000	1,365
	3,000,000,000	1,850
	4,000,000,000	2,260
	5,000,000,000	2,640
	6,000,000,000	2,950
	7,000,000,000	3,200
	8,000,000,000	3,410
	10,000,000,000	3,750

For heat content between any two consecutive heat contents given in the table, the fly ash limitation shall be as determined by interpolation.

§ 625-67 Smoke.

No emission of smoke from any source, as measured on the Ringelmann Chart published by the United States Bureau of Mines, shall be permitted in excess of:

In all B Districts, a density described as Ringelmann No. 2, provided that a density equal to Ringelmann No. 3 may be emitted for not more than three minutes in any 15 consecutive minutes.

In the M District, a density described as Ringelmann No. 3.

Marion City Zoning Code

ARTICLE XV

Performance Standards

§ 625-57 Purpose.

§ 625-58 Sound.

The volume of sound inherently and recurrently generated shall not exceed the following standards at any point along the boundaries of the zone in which the use is located:

Objectionable sounds of an intermittent nature shall be controlled so as not to become a nuisance to adjacent uses.

	B-1 and B-2 Districts
	Frequency Ranges Containing Standard Octave Bands in Cycles Per Second	Octave Band Sound-Pressure Level in Decibels
	0 to 74	72
	75 to 149	67
	150 to 299	59
	300 to 599	52
	600 to 1,199	46
	1,200 to 2,399	40
	2,400 to 4,800	34
	Above 4,800	32

	Type of Operation or Noise	Correction in Decibels
	Daytime operation only	+5
	Noise of impulsive character (e.g., hammering)	-5
	Noise of periodic character (e.g., hum or screech)	-5

	Manufacturing District
	Frequency Ranges Containing Standard Octave Bands in Cycles Per Second	Octave Band Sound-Pressure Level in Decibels
	0 to 74	79
	75 to 149	64
	150 to 299	66
	300 to 599	59
	600 to 1,199	53
	1,200 to 2,399	47
	2,400 to 4,800	41
	Above 4,800	39

	Type of Operation or Noise	Correction in Decibels
	Daytime operation only	+5
	Noise of impulsive character (e.g., hammering)	-5
	Noise of periodic character (e.g., hum or screech)	-5

§ 625-59 Vibration.

An operation which creates vibrations that can be measured without instruments, e.g., heavy drop forges and heavy hydraulic surges, shall be set back:

In all B Districts a distance of not less than 500 feet from all lot lines, except where a lot line abuts a M District in which case no setback is required.

In an M District, a distance of not less than 500 feet from the district boundaries.

§ 625-60 Radioactivity.

§ 625-61 Odor.

In all B Districts, no emission of odorous gas or other odorous matter in such quantity as to be readily detectable at any point along lot lines without use of instruments shall be permitted.

§ 625-62 Toxic or noxious matter.

§ 625-63 Glare.

No direct or reflected glare from any M District shall be detectable from any R District boundary.

§ 625-64 Heat.

No direct or reflected heat from any M District shall be detectable from any R or B District boundary.

§ 625-65 Dust.

No solid or liquid particles shall be emitted in concentrations exceeding 0.3 grain per cubic foot of the conveying gas or air.

§ 625-66 Fly ash.

No emission of fly ash in excess of the quantity specified in the following table shall be permitted:

	Heat in Fuel Burned (British thermal units per hour)	Fly Ash Rate of Emission (pounds per hour)
	1,000,000	1
	100,000,000	100
	400,000,000	330
	1,000,000,000	750
	2,000,000,000	1,365
	3,000,000,000	1,850
	4,000,000,000	2,260
	5,000,000,000	2,640
	6,000,000,000	2,950
	7,000,000,000	3,200
	8,000,000,000	3,410
	10,000,000,000	3,750

For heat content between any two consecutive heat contents given in the table, the fly ash limitation shall be as determined by interpolation.

§ 625-67 Smoke.

No emission of smoke from any source, as measured on the Ringelmann Chart published by the United States Bureau of Mines, shall be permitted in excess of:

In all B Districts, a density described as Ringelmann No. 2, provided that a density equal to Ringelmann No. 3 may be emitted for not more than three minutes in any 15 consecutive minutes.

In the M District, a density described as Ringelmann No. 3.

Marion City Zoning Code

ARTICLE XV

Performance Standards

§ 625-57 Purpose.

§ 625-58 Sound.

The volume of sound inherently and recurrently generated shall not exceed the following standards at any point along the boundaries of the zone in which the use is located:

Objectionable sounds of an intermittent nature shall be controlled so as not to become a nuisance to adjacent uses.

	B-1 and B-2 Districts
	Frequency Ranges Containing Standard Octave Bands in Cycles Per Second	Octave Band Sound-Pressure Level in Decibels
	0 to 74	72
	75 to 149	67
	150 to 299	59
	300 to 599	52
	600 to 1,199	46
	1,200 to 2,399	40
	2,400 to 4,800	34
	Above 4,800	32

	Type of Operation or Noise	Correction in Decibels
	Daytime operation only	+5
	Noise of impulsive character (e.g., hammering)	-5
	Noise of periodic character (e.g., hum or screech)	-5

	Manufacturing District
	Frequency Ranges Containing Standard Octave Bands in Cycles Per Second	Octave Band Sound-Pressure Level in Decibels
	0 to 74	79
	75 to 149	64
	150 to 299	66
	300 to 599	59
	600 to 1,199	53
	1,200 to 2,399	47
	2,400 to 4,800	41
	Above 4,800	39

	Type of Operation or Noise	Correction in Decibels
	Daytime operation only	+5
	Noise of impulsive character (e.g., hammering)	-5
	Noise of periodic character (e.g., hum or screech)	-5

§ 625-59 Vibration.

An operation which creates vibrations that can be measured without instruments, e.g., heavy drop forges and heavy hydraulic surges, shall be set back:

In all B Districts a distance of not less than 500 feet from all lot lines, except where a lot line abuts a M District in which case no setback is required.

In an M District, a distance of not less than 500 feet from the district boundaries.

§ 625-60 Radioactivity.

§ 625-61 Odor.

In all B Districts, no emission of odorous gas or other odorous matter in such quantity as to be readily detectable at any point along lot lines without use of instruments shall be permitted.

§ 625-62 Toxic or noxious matter.

§ 625-63 Glare.

No direct or reflected glare from any M District shall be detectable from any R District boundary.

§ 625-64 Heat.

No direct or reflected heat from any M District shall be detectable from any R or B District boundary.

§ 625-65 Dust.

No solid or liquid particles shall be emitted in concentrations exceeding 0.3 grain per cubic foot of the conveying gas or air.

§ 625-66 Fly ash.

No emission of fly ash in excess of the quantity specified in the following table shall be permitted:

	Heat in Fuel Burned (British thermal units per hour)	Fly Ash Rate of Emission (pounds per hour)
	1,000,000	1
	100,000,000	100
	400,000,000	330
	1,000,000,000	750
	2,000,000,000	1,365
	3,000,000,000	1,850
	4,000,000,000	2,260
	5,000,000,000	2,640
	6,000,000,000	2,950
	7,000,000,000	3,200
	8,000,000,000	3,410
	10,000,000,000	3,750

For heat content between any two consecutive heat contents given in the table, the fly ash limitation shall be as determined by interpolation.

§ 625-67 Smoke.

No emission of smoke from any source, as measured on the Ringelmann Chart published by the United States Bureau of Mines, shall be permitted in excess of:

In all B Districts, a density described as Ringelmann No. 2, provided that a density equal to Ringelmann No. 3 may be emitted for not more than three minutes in any 15 consecutive minutes.

In the M District, a density described as Ringelmann No. 3.