(A)   New uses. Any use established in the business or industrial zones after the effective date hereof shall comply with the minimum performance standards contained in this subchapter.

   (B)   Existing uses.

      (1)   Existing business and industrial uses which are not in compliance with the performance standards contained in this subchapter are exempt, except where a use did not comply with performance standards in effect prior to the effective date hereof.

      (2)   (a)   Conditions which do not comply shall not be increased in scope or magnitude.

         (b)   Such uses shall be permitted to be enlarged or altered, provided the addition or change conforms with the applicable performance standards.

(Ord. passed 5-16-2023)

   When necessary, the appropriate official may require of the applicant certification by a registered professional engineer or other qualified person, at the expense of the applicant, that the performance standards for a proposed use can be met.

(Ord. passed 5-16-2023)

   The emission of smoke from any operation or activity shall not exceed a density or equivalent opacity permitted by the State EPA.

(Ord. passed 5-16-2023)

   No person shall operate or cause to be operated any process which emits particulate air contaminants exceeding the air quality standards of the Illinois Environmental Protection Agency (IEPA) or its successor.

   (A)   Prior to the county issuing a certificate of occupancy, an applicant must submit to the appropriate official documentation of the IEPA approval of the applicant’s application and permit to install or alter equipment, or control equipment if such a permit is required under the applicable IEPA standards.

   (B)   (1)   In the event the IEPA lowers its air quality standards, the IEPA standards in effect on the adoption date of this subchapter shall remain applicable.

      (2)   Under these circumstances, prior to the county issuing a building permit, an applicant must submit to the appropriate official documentation from a licensed engineer demonstrating that the use complies with the IEPA standards (on the adoption date of this subchapter).

   (C)   In the event the IEPA raises its air quality standards, the new IEPA standards shall apply, and the applicant must comply with the requirements of division (B) above.

(Ord. passed 5-16-2023)

   (A)   General.

      (1)   The release of airborne toxic matter from any operation or activity shall not exceed the fractional quantities permitted below of the threshold limit values adopted by the American Conference of Governmental Industrial Hygienists.

      (2)   If a toxic substance is not listed, verification that the proposed level of toxic matter will be safe and not detrimental to the public health or injurious to plant and animal life will be required. The measurement of toxic matter shall be on the average of any 24-hour sampling period.

   (A)   All B Zones and the I-UL Zone. In all B Zones and in the I-UL Zone, the release beyond lot lines of airborne toxic matter shall not exceed one-eighth of the threshold limit values.

   (B)   I-1 and I-2 Zones. In the I-1 and I-2 Zones, the release of airborne toxic matter shall not exceed one-eighth of the threshold limit values beyond zone boundary lines.

(Ord. passed 5-16-2023)

   (A)   (1)   Earth borne vibrations from any operation or activity shall not exceed the displacement values below.

      (2)   Vibration displacements shall be measured with an instrument capable of simultaneously measuring in three mutually perpendicular directions.

      (3)   The maximum vector resultant shall be less than the vibration displacement permitted.

   (B)   The maximum displacements shall be determined by the following formula:

      (1)   D = Kf, where:

         (a)   D is displacement in inches;

         (b)   K is a constant given in the table in division (B)(2) below; and

         (c)   f is the frequency of the vibration transmitted through the ground in cycles per second.

      (2)   Below are the regulations concerning vibrations in the B, I-UL, I-1, and I-2 Districts:

 

 

(Ord. passed 5-16-2023)

   See illumination provisions, §§ 154.570 through 154.575.

(Ord. passed 5-16-2023)

   Sewers and sewage discharge shall meet the appropriate county code and all IEPA requirements.

(Ord. passed 5-16-2023)

   (A)   The open storage of materials and equipment shall, except for sales display, be subject to the following requirements:

      (1)   Storage of materials and equipment shall be completely screened from view. An eight-foot solid wall fence with a level A bufferyard as described in §§ 154.590 through 154.599 will be required; and

      (2)   All combustible material shall be stored in such a way as to include, where necessary, access drives to permit free access of firefighting equipment.

   (B)   (1)   The bulk storage of flammable liquids and chemicals, when stored in aboveground tanks, shall occur no closer than the lot line or any principle building than the distance indicated by the following table:

 

      (2)   The distance may be reduced to not less than ten feet for a single container of 1,200 gallons capacity or less, provided such a container is at least 25 feet from any other container or more than 125 gallons capacity.

   (C)   The underground bulk storage of flammable liquids shall be located in accordance with the Uniform Fire Code regarding tank storage underground, except the minimum distance between such underground tanks and any R Zone boundary shall be at least ten feet.

(Ord. passed 5-16-2023)

   See bufferyard requirements as described in §§ 154.590 through 154.599.

(Ord. passed 5-16-2023)

   The following requirements shall apply in all Districts:

   (A)   The sound pressure level, to be measured as described below, shall not exceed the following decibel levels in the designated octave bands when adjacent to the designated types of use districts:

 

   (B)   Objectionable sounds of an intermittent nature which are not easily measured shall be controlled so as not to become a nuisance to adjacent uses.

   (C)   (1)   Measurement is to be made at the nearest boundary of the nearest residential area or at any other point along the boundary where the level is higher.

      (2)   The sound levels shall be measured with a sound level meter and associated octave band filter as prescribed by the American Standards Association.

(Ord. passed 5-16-2023)