Dixon City Zoning Code

CHAPTER 15

ENVIRONMENTAL PERFORMANCE STANDARDS

6-15-1: PURPOSE AND SCOPE:

The performance standards set forth in this Chapter are designed to protect the health, safety, morals and welfare of the residents of the City of Dixon and to protect, maintain, and enhance the quality of the natural environment of the City. All new and existing uses established within the City shall comply with the performance standards set forth in this Chapter. Uses already established on the effective date of this Chapter shall be allowed to be altered, enlarged, expanded, or modified, provided that any such additions or changes comply with the performance standards set forth in this Chapter. (Ord. 1973, 1-6-1997)

6-15-2: NOISE:

(A) No land use or other activity within the City shall be conducted in such a manner that it generates a level of sound on another property greater than that allowed under the Noise Regulations of the State of Illinois, adopted by the State Pollution Control Board pursuant to the Environmental Protection Act, Ill. Rev. Stat. Ch. 111-1/2, 1001 et seq., as amended, and appearing in Title 35, Subtitle H, of the Illinois Administrative Code, as amended.

(B) No land use or other activity within the City shall be conducted in such a manner that it generates a level of sound on another property which violates any provision of this Chapter.

(C) In addition to the standards set forth above, no land use or other activity within the City, other than those specified in subsection (d) below, shall be conducted in such a manner that it generates a level of sound on another property which is greater than the "A-weighted" sound level set forth in Table 6.15.1.

(D) The limits set forth in Table 6.15.1 shall not apply to the following: noises not directly under the control of the owner or occupant of the property; noises emanating from construction, repair, and maintenance activities conducted between the hours of 7:00 a.m. and 7:00 p.m.; noises emanating from safety signals, warning devices, and emergency pressure relief valves; and transient noises emanating from moving sources, such as trucks, automobiles, airplanes, and railroads.

Table 6.15.1 “A-weighted” Sound Level Limits
District Classification of “Receiving” Property	Time of Day	Maximum “A-weighted” Sound Level
Residential Districts	7:00 a.m. to 7:00 p.m.	75 dB(A)
	7:00 p.m. to 7:00 a.m.	65 dB(A)
Business and Manufacturing Districts	No restriction	80 dB(A)

(Ord. 1973, 1-6-1997)

6-15-3: VIBRATION:

(A) No land use or other activity within the City shall cause or create earthborne vibrations on another property in excess of the displacement values set forth in this Section.

(B) Measurements of vibration displacement shall be made at or beyond the adjacent lot line, with an instrument or complement of instruments capable of simultaneously measuring in three (3) mutually perpendicular directions. The maximum vector which results shall be less than the vibration displacement permitted in C. below.

   D   K where:   D =displacement in inches;
      f         K =the constant set forth in Table 6.15.2;
               f =the frequency of the vibration transmitted through the ground in cycles per second.

The maximum earth displacement permitted at any neighboring lot line and at the boundary of any residential zoning district shall be determined by using the above formula and the appropriate K value set forth in Table 6.15.2.

Table 6.15.2 K Values To Be Used In Measuring Vibration
Location	K Value
At Any Business Or Manufacturing Property Line: Continuous vibration Impulsive vibration Fewer than 8 pulses per 24-hour period	0.015 0.030 0.075
At Any Residential Property Line: Continuous vibration Impulsive vibration Fewer than 8 pulses per 24-hour period	0.008 0.015 0.037

(Ord. 1973, 1-6-1997)

6-15-4: AIR POLLUTANTS AND ODORS:

(A) Any land use or other activity in the City which involves the emission of smoke, particulate matter, or other air pollutants shall comply with all applicable standards set forth in State and Federal statutes and regulations regarding the emission of air pollutants. Any such land use or other activity shall also obtain and maintain all necessary licenses and permits from the appropriate State and Federal agencies, such as the United States Environmental Protection Agency and the Illinois Environmental Protection Agency.

(B) No land use or other activity within the City shall be conducted in such a manner that it generates any odor which violates any applicable provision of Title 4, Chapter 7 of the City. (Ord. 1973, 1-6-1997)

6-15-5: TOXIC, HAZARDOUS, AND RADIOACTIVE MATERIALS:

Any land use or other activity in the City which involves the use of toxic, hazardous, or radioactive materials shall comply with all applicable standards set forth in State and Federal statutes and regulations regarding the use, storage, transportation, emission, and disposal of such materials. Any such land use or other activity shall also obtain and maintain all necessary licenses and permits from the appropriate State and Federal agencies, such as the United States Environmental Protection Agency, the Illinois Environmental Protection Agency, and the Illinois Department of Nuclear Safety. (Ord. 1973, 1-6-1997)

6-15-6: FIRE AND EXPLOSIVE HAZARDS:

(A) All flammable solid, liquid, and gaseous substances shall be stored and used in accordance with all applicable Federal, State, and local statutes and regulations.

(B) In all non-residential zoning districts, the storage or use of solid materials or products ranging from incombustible to moderate burning is permitted.

(C) In all non-residential zoning districts, the storage or use of solid materials or products ranging from free or active burning to intense burning is permitted, provided that either of the following conditions is met:

1. Solid materials or products shall be stored or used within completely enclosed buildings having no less than two-hour fire-resistant exterior walls and protected with an automatic fire extinguishing system; or

2. Said material, if stored outdoors, shall be no less than fifty feet (50') feet from the nearest lot line.

(D) The storage or use of flammable liquids shall be permitted in conjunction with any non-residential use up to the amounts set forth in Table 6.15.3, exclusive of storage of finished products in original sealed containers. When flammable gases are stored or used, and measured in cubic feet, the quantity in cubic feet at standard temperature and pressure shall not exceed thirty (30) times the quantities listed in Table 6.15.3 (one gallon of solvent equaling thirty (30) cubic feet of vapor).

(E) Storage tanks for flammable liquids and gasses shall be located no closer than fifty (50') feet to any lot line.

(F) In addition to the foregoing provisions, any activity involving the storage or use of materials or products which decompose by detonation is prohibited in any district, except where specifically licensed by the City. Such materials shall include, but shall not be limited to, the following: all primary explosives such as lead azide, lead styphnate, fulminates, and tetracene; all high explosives such as TNT, RDX, HMX, PETN, and picric acid; propellants and components thereof such as 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 perchloric acid; perchlorates; chlorates; hydrogen peroxide in concentrations greater than thirty five percent (35%); and nuclear fuels, fissionable materials, and products and reactor elements such as Uranium 235 and Plutonium 239.

Table 6.15.3 Total Capacity of Flammable Materials Permitted (in Gallons)
	Above Ground (within enclosed buildings)	Underground
Materials having a closed cup flash point over 187ºF. but less than 300ºF.	5,000	100,000
Materials having a closed cup flash point from and including 105ºF. to and including 187ºF.	2,500	100,000
Materials having a closed cup flash point of less than 105ºF.	1,000	100,000

(Ord. 1973, 1-6-1997)

6-15-7: GLARE:

(A) No land use or other activity in the City shall be conducted so that direct and indirect illumination from a source of light shall cause illumination in excess of 0.5 foot-candles, as measured horizontally at the lot line, at any point within a residential zoning district. However, when street lighting produces illumination in excess of one foot-candle at a particular point in a residential zoning district, the contribution by light sources from any property in a non-residential zoning district, as measured at the same point, shall not exceed fifty percent (50%) of the street lighting.

(B) Flickering or intense sources of light shall be controlled or shielded so as not to cross lot lines. (Ord. 1973, 1-6-1997)