The regulations for the manufacturing district are designed to provide for the establishment of a full range of industrial and allied activities and to govern their operations in a manner that will not have a deleterious effect on agricultural, residential, and business areas. It is essential that there be adequate provision for the expansion and diversification of industry—both those existing today and for the attraction of new industry. Adequate well-located industrial sites and room for expansion of established plants will encourage industrial growth, and expansion of Glenwood's economic base. It will also open new opportunities for a variety of employment for its labor force. (See article XIII relative to certification required as to compliance with the performance standards of these districts).

The M manufacturing district is established to provide an environment suitable for industrial activities that require a pleasant and nuisance-free environment and will be compatible with adjacent residential and business uses.

A

Operations within a closed building. All activities after the effective date of this ordinance involving the manufacturing, fabricating, processing, assembling, disassembling, preparing, cleaning, servicing, testing and storing of materials, products, and goods shall be conducted within completely enclosed buildings. Except, open sales lots may be allowed as a special use.

B

Performance standards. Any use established in the manufacturing district after the effective date of this ordinance shall be so operated as to comply with the performance standards governing:

(1)

Noise;

(2)

Vibration;

(3)

Smoke and particulate matter;

(4)

Toxic matter;

(5)

Odorous matter;

(6)

Fire and explosive hazards;

(7)

Glare and heat; and

(8)

Radiation hazards - as set forth hereinafter.

Established uses may be altered, enlarged, expanded or modified provided that the additions or changes comply with said performance standards.

1

Performance standards—Noise.

For the purpose of measuring the intensity and frequency of sound, the sound level meter, the octave band analyzer, and the impact noise analyzer shall be employed.

The flat network and the slow meter response of the sound level meter shall be used. Sounds of very short duration, as from forge hammers, punch presses, and metal shears which cannot be measured accurately with the sound level meter shall be measured with the impact noise analyzer. Octave band analyzers calibrated in the Preferred Frequencies (American National Standards Institute Standard S 1.6 - 1967, Preferred Frequencies and Band Numbers for Acoustical Measurements) shall be used.

The following uses and activities shall be exempt from the noise level regulations:

Noises not directly under the control of the property user.

Noises emanating from construction and maintenance activities between 7:00 a.m. and 7:00 p.m.

Non-routine operations accessory to the primary activities and which are temporary in nature, or conducted infrequently.

The noises of safety signals, warning devices, and emergency pressure relief valves.

Transient noises of moving sources of noise such as automobiles, trucks, excavation equipment, tractors, airplanes, and railroads.

The decibel values specified for residence districts shall be reduced by three decibels between the hours of 7:00 p.m. and 7:00 a.m.

In the M district, the generation of noise shall not exceed the decibel limits prescribed below.

Maximum Permitted Sound Levels Decibels (Re 0.0002 Microbar)

Impact noises measured on an impact noise analyzer shall not exceed the following peak intensities:

2

Performance standards—Vibration

In the manufacturing district, no activity or operation shall cause or create earthborne vibrations in excess of the displacement values or vibration limits given below.

Measurements shall be made at or beyond the adjacent lot line or the nearest residence district boundary line as described below. Vibration displacements shall be measured with an instrument or complement of instruments capable of simultaneously measuring in three mutually perpendicular directions. The maximum vector shall be less than the vibration displacement permitted.

The maximum permitted displacements shall be determined by the following formula:

D = K / f

where D = displacement in inches

K = a constant to be determined by reference to the following tables.

f = the frequency of the vibration transmitted through the ground, cycles per second.

The maximum earth displacement permitted at the points described below shall be determined by use of the formula in the preceding paragraph 2 and the appropriate K constant shown in table 1.

Table I
Values of K to be used in Vibration Formula

3

Performance standards—Smoke and particulate matter. The emission of smoke or particulate matter in sufficient quantities and of such characteristics and duration as to be injurious to public health and safety or which unreasonably interferes with personal comfort and welfare is hereby declared to be a public nuisance and shall not be permitted in the manufacturing district.

For the purpose of grading the density of equivalent opacity of smoke, the Ringelmann Chart described in the U.S. Bureau of Mines Information Circular 8333 (May 1967) shall be employed. The emission of smoke or particulate matter of a density or equivalent opacity equal to or greater than No. 2 on the Ringelmann Chart is prohibited at all times except as otherwise provided hereinafter.

Dust and other types of air pollution borne by the wind from such sources as storage areas, yards, roads, and the like within lot boundaries shall be kept to a minimum by appropriate landscaping, paving, oiling, fencing, wetting, or other acceptable means.

Particulate matter loadings in pounds per acre described below shall be determined by selecting a continuous four-hour period which will result in the highest average emission rate.

The emission of smoke having a density or equivalent opacity in excess of Ringelmann No. 1 is prohibited. However, for not more than two minutes in any four-hour period, smoke up to and including Ringelmann No. 2 shall be permitted.

The rate of emission of particulate matter from all vents and stacks within the boundaries of any lot shall not exceed 0.5 pounds per acre of lot area per hour.

Suspended particulates carried across lot lines shall not exceed 25 micrograms per cubic meter, averaged over a 24-hour period at ground level or habitable elevation.

4

Performance standards—Toxic matter. The release of airborne toxic matter shall not exceed 1/30 of the Threshold Limit Values currently recommended by the American Conference of Governmental Industrial Hygienists, when measured at any point beyond the lot line, either at ground level or habitable elevation, whichever is more restrictive. Concentrations shall be measured and calculated as the highest average that will occur over a continuous 24-hour period.

If a toxic substance is not listed, the applicant shall be required to submit documented proof that the proposed levels will be safe and not detrimental to the public health or injurious to plant and animal life.

5

Performance standards—Odorous matter.

The emission of odorous matter shall be in accordance with the requirements of each district.

The release of materials capable of becoming odorous, either by bacterial decomposition or chemical reaction, shall meet the standards of the district in which the odor is created.

When odorous matter is released from any operation, activity, or use in the M1 district, the concentration of such odorous materials shall not exceed the odor threshold when measured beyond the lot line, either at ground level or habitable elevation.

6

Performance standards—Fire and explosive hazards.

a

Detonable materials.

Activities involving the storage, utilization, or manufacture of materials or products which decompose by detonation shall be in accordance with the regulations of each industrial district.

Such materials shall include but are not limited to: all primary explosives such as lead azide, lead styphnote, fulminates and tetracene; all high explosives such as TNT, RDX, HMX, PETN, and picric acid; propellants and components thereof, such as dry nitrocellulose, black powder, boron hydrides, hydrazine and its derivatives; pyrotechnics and fireworks such as magnesium powder, potassium chlorate and potassium nitrate; blasting explosives such as dynamite and nitroglycerine; unstable organic compounds such as acetylides, tetrazoles and ozonides; unstable oxidizing agents such as perchloric acid, perchlorates, and hydrogen peroxide in concentrations greater than 35 percent; and nuclear fuels, fissionable materials and products, and reactor elements such as Uranium 235 and Plutonium 239.

The storage, utilization or manufacture of materials or products which decompose by detonation is limited to an inventory of five pounds.

b

Flammable solids.

In all manufacturing districts, the storage, utilization, or manufacture of solid materials or products ranging from incombustible to moderate burning is permitted.

In the M district, the storage, utilization or manufacture of solid materials or products ranging from free or active burning to intense burning is permitted, provided either of the following conditions is met:

Said materials or products shall be stored, utilized, or manufactured within completely enclosed buildings having no less than two-hour fire resistant exterior walls and protected with an automatic fire extinguishing system, or

Said material, if stored outdoors, will be no less than 100 feet to the nearest lot line.

c

Flammable liquids and gases. The storage, utilization, or manufacture of flammable liquids shall be permitted in accordance with the following table, exclusive of storage of finished products in original sealed containers, which shall be unrestricted. Above ground flammable liquid and gas storage tanks shall not be less than 50 feet from all lot lines. Flammable liquids and gases in original sealed containers 55 gallons liquid capacity or less may be stored or utilized without restriction.

Total Capacity of Flammable Materials Permitted (in Gallons)

When flammable gases are stored, utilized, or manufactured and measured in cubic feet, the quantity in cubic feet at standard temperature and pressure shall not exceed 30 times the quantities listed above.

7

Performance standards—Glare and heat. In all manufacturing districts, any operation or activity producing glare or heat shall be conducted within a completely enclosed building in such manner as not to create a public nuisance or hazard beyond the boundaries of the lot.

8

Performance standards—Radiation hazards.

Release outside property lines: In all manufacturing districts, the release of radioactive materials or the emission of ionizing radiation outside of property lines shall be in accordance with the rules and regulations of the State of Illinois.

Unsealed radioactive materials: In all manufacturing districts, unsealed radioactive materials shall not be manufactured, utilized, or stored (except when such materials are stored in a fireproof container at or below ground level) in excess of the following multiples of the quantities set forth in the table of "Quantities of Radioactive Materials" (see appendix A);

M1 District IX

(Ord. No. 2003-02, § 1, 2-4-2003)

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(Ord. No. 1988-02, § 5, 1-19-1988; Ord. No. 2003-02, § 1, 2-4-2003; Ord. No. 2005-17, § 2, 8-16-2005; Ord. No. 2016-06, §§ 2, 3, 4-19-2016)

Prior to the authorization for a special use, and the granting of a special use permit, special conditions where identified in article 8.03 shall be required in addition to compliance with the requirements for satisfactory plans, specifications and public hearings as required in article 13.07. The following list of special conditions are identified by code numbers corresponding to those which appear in article 8.03 in connection with specific uses:

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* Such yards adjoining a residence district shall provide a solid seven-foot high fence along the lot line or a dense landscape screen as approved by the building inspector.

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QUANTITIES OF RADIOACTIVE MATERIAL