All uses conducted in commercial and industrial districts must conform to the standards of performance described below and must be so constructed, maintained, and operated in a manner not to be injurious or offensive to the occupants of adjacent and nearby premises by reason of emission or creation of noise, vibration, smoke, dust or other particulate matter, toxic or noxious waste materials, odors, fire, explosive hazard, or glare.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).

Every use must be operated in a manner not to exceed the sound level limits described in Section 165.22 of the Seminole County Code. Objectionable noises due to intermittence, frequency, or loudness must be muffled or eliminated to an extent not to become a nuisance to adjacent and nearby uses. Sound levels may be measured as specified in Section 165.22 of the Seminole County Code.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).

Every use must be operated in a manner that ground vibrations that are inherently and recurrently generated are not perceptible without instruments at any point on the property line of the property on which the use is located.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).

Every use must be operated in a manner to prevent the emission of smoke, from any source whatever, to a density greater than described as Number 1 on the Ringelmann Chart, except that smoke equal to, but not in excess of, that shade of appearance described as Number 2 on the Ringelmann Chart may be emitted for a period or periods totaling four (4) minutes in any thirty (30) minutes. For the purpose of grading the density of smoke, the Ringelmann Chart, as published and used by the United States Bureau of Mines, and which is hereby made by reference a part of this regulation, is The Standard. All measurements must be made at the point of emission.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).

Every use must be operated in a manner to prevent the emission into the air of dust or other solid matter that may cause damage to property or discomfort to persons or animals at or beyond the lot line of the property on which the use is located.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).

Every use must be operated in a manner to prevent the emission of objectionable or offensive odors in such concentration as to be readily perceptible at any point at or beyond the lot line of the property on which the use is located.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).

Illumination levels may not exceed 0.5 foot candles at the property line where the neighboring property is a residential use or is zoned for a residential use. For all other uses, illumination levels may not exceed 1.0-foot candles at the property line. To avoid glare and light spilling onto neighboring properties, fixtures must be installed with shields and reflectors.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).

Any operation or activity producing toxic matter must be conducted in a manner to ensure that the release of airborne toxic matter, beyond the district boundary line, does not exceed one-thirtieth (1/30) of the Threshold Limit Values (TLVs) permitted of those toxic matters currently listed in the Threshold Limit Values adopted by The American Conference of Governmental Industrial Hygienists. If a toxic substance is not contained in this listing, the applicant shall satisfy the Florida Department of Health that the proposed levels will be safe to the general population. The measurement of toxic matter must be made at ground level or habitable elevation and shall be the average of any twenty-four (24) hour sampling.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).

Each use must be operated in a manner to prevent the emission of quantities of radioactive materials in excess of limits established as safe by The United States Bureau of Standards.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).

All activities and all storage of flammable and explosive materials must comply with Seminole County's Department of Fire Protection and Building Codes.

(Ord. No. 2024-02, § 7(Exh. B), 1-9-24).