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No vibration shall be produced which is transmitted through the ground and is discernible without the aid of instruments at or beyond the lot line nor shall any vibration produced exceed 0.0029 peak measured at or beyond the lot line using either seismic or electronic vibration measuring equipment.
(Ord. 823-2016 § 25 (part), 2016)
A. All noise shall be muffled so as not to be objectionable due to intermittence, beat frequency or shrillness. In no event shall the sound-pressure level of noise radiated continuously from a structure exceed at the lot line the values in Table 1 of this section. The sound level shall be measured with a sound level meter that conforms to specifications published by the American National Standards Institute (ANSI).
Table 1 EXTERIOR NOISE LIMITS (Levels not to be exceeded more than thirty minutes in any hour) | |||
Noise Level (dBA) Noise Zone Classification* | |||
Adjoining Land Use Category | Time Period | R-S zones | All other zones |
Table 1 EXTERIOR NOISE LIMITS (Levels not to be exceeded more than thirty minutes in any hour) | |||
Noise Level (dBA) Noise Zone Classification* | |||
Adjoining Land Use Category | Time Period | R-S zones | All other zones |
One and two family Residential | 10 p.m. -- 7 a.m. 7 a.m. -- 10 a.m. | 40 50 | 45 55 |
Multiple dwelling Residential Public Space | 10 p.m. -- 7 a.m. 7 a.m. -- 10 p.m. | 45 55 | 50 55 |
Limited commercial some multiple dwellings | 10 p.m. -- 7 a.m. 7 a.m. -- 10 p.m. | 55 60 | |
Commercial | 10 p.m. -- 7 a.m. 7 a.m. -- 10 p.m. | 60 65 | |
Light Industrial | Anytime | 70 | |
Heavy Industrial | Anytime | 75 | |
* The classification of different areas of the community in terms of environmental noise zones is contained in the Noise Element of the General Plan. Additional area classifications should be used as appropriate to reflect both lower and higher existing ambient levels than those shown. Industrial noise limits are intended primarily for use at the boundary of industrial zones rather than for noise reduction within the zone. | |||
B. Permanent and temporary standby power supply.
1. Definitions.
a. “Permanent standby power supply.” A unit that is permanently installed and wired into the electrical panel in such a way as to provide instant standby power in the event of power failure.
b. “Temporary standby power supply.” A unit that is not permanently installed and is used in the course of a power failure.
2. Generators may be used as an auxiliary power source during periods of emergency when primary service is shut-off due to inclement weather, maintenance, or safety.
a. A minimum of 4" concrete slab shall be provided for the placement/location of the unit.
b. The location on the site shall be no closer than five (5) feet from the property lines at the rear and side yard setbacks for all zoning districts. No units are allowed in the front setback area.
c. Exhaust shall be located to face away from any window and door openings a minimum of ten (10) feet from openings.
d. Installation shall meet all requirements and all of the building codes including, but not limited to the California Electric Code, Plumbing Code, Fuel Gas Code, and Flammable and Combustible Liquids Code.
e. Maximum allowable sound levels may be up to 70 decibels. Continuous use shall be in accordance with the manufacturer's installation and use recommendations. Continuous use is allowed only during times of emergency upon power failure or shut-offs as described above and does not include power shut-off due to nonpayment of utility costs. Units may be tested in accordance with manufacturer's recommendations but no more than every two months for a period less than 15 minutes in length between the hours of 10 am and 4 pm.
(Ord. 836-2022 § 1, 2022; Ord. 823-2016 §25 (part), 2016)
A. Visible Emissions. There shall not be discharged into the atmosphere from any source any air pollutant in excess of the Federal, State, or County limitations. This shall include emissions of air pollutants of such opacity as to obscure an observer's view to a degree equal to or greater than the visible emission described in this section. Visible emissions of any kind at ground level are prohibited past the lot line of the property on which the source of the emissions is located. No emission shall exceed No. 1 on the Ringelmann Chart, or as directed by the currently adopted measurement standard.
B. Materials Handling. No person shall cause or permit any materials to be handled, transported, or stored in a manner which allows or may allow particulate matter to become airborne and all transported materials shall be covered.
C. Particulate Matter. There shall not be discharged into the atmosphere any particulate matter in excess of the quantities allowed under the Butte County Air Quality Management Plan.
(Ord. 823-2016 § 25 (part), 2016)
Any condition or operation which results in the creation of odors of such intensity and character as to be detrimental to the health and welfare of the public, or which interferes unreasonably with the comfort of the public, shall be removed, stopped, or so modified as to eliminate the odor including the recreational or medical use of any drug, prescribed or not.
(Ord. 823-2016 § 25 (part), 2016)
The following standards shall apply:
A. General. It is unlawful to operate, or cause to be operated, any planned or intentional source of electromagnetic radiation for such purposes as communication, experimentation, entertainment, broadcasting, heating, navigation, therapy, vehicle velocity measurement, weather survey, aircraft detection, topographical survey, personal pleasure, or any other use which does not comply with the current regulations of the Federal Communications Commission. Further, the operation in compliance with the Federal Communications Commission regulations is unlawful if such radiation causes an abnormal degradation in performance of other electromagnetic radiators or electromagnetic receptors of quality and proper design because of proximity, primary field, blanketing, spurious re-radiation, harmonic content, modulation or energy conducted by power or telephone lines. The determination of "abnormal degradation in performance" and with good engineering practices is defined in the latest principles and standards of the American Institute of Electrical Engineers, the Institute of Radio Engineers, and the Electronic Industries Association. In case of any conflict between the latest standards and principles of the above groups, the following precedence in the interpretation of the standards and principles shall apply:
1. American Institute of Electrical Engineers.
2. Institute of Radio Engineers.
3. Electronic Industries Association.
It is unlawful for any person, firm or corporation to operate or cause to be operated, maintain or cause to be maintained, any planned or intentional sources of electromagnetic energy, with a radiated power in excess of one thousand watts.
B. Electromagnetic Interference. For the purpose of these regulations, "electromagnetic interference" shall be by the use of electrical equipment other than planned and intentional sources of electromagnetic energy which interfere with the proper operation of electromagnetic receptors of quality and proper design. It is unlawful to operate or to cause to be operated any source of electromagnetic interference, by the radiation or transmission from which it is detectable beyond the lot line of the property on which the source is located.
(Ord. 823-2016 § 25 (part), 2016)
All activities and all storage of flammable and explosive materials at any point shall be provided with adequate safety and firefighting devices, in accordance with the Fire Prevention Codes of the City, the County and the State. Storage of compressed gasses in all zoning designations shall be in accordance with the safety measures commonly used.
(Ord. 823-2016 § 25 (part), 2016)
The handling of radioactive materials, the discharge of such materials into the air and water, and the disposal of radioactive wastes shall comply with the Nuclear Regulatory Commission as set forth in Title 10, Chapter One, Part 20, Standards for Protection Against Radiation, as amended, and all applicable regulations of the State.
(Ord. 823-2016 § 25 (part), 2016)
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