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)

   (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.

 

 

(Ord. 1973, 1-6-1997)

   (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.

   (C)   The maximum permitted displacement shall be determined in each instance by the following formula:

   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.