Chapter 6.32
NOISE CONTROL
Sections:
6.32.020 Declaration of policy.
6.32.030 Liberal construction.
6.32.070 Sound level measurement generally.
6.32.080 Exterior noise standards.
6.32.090 Interior noise standards.
6.32.110 Machinery, equipment, fans and air conditioning.
6.32.130 Radios, music playing devices, and televisions on publicly owned property.
6.32.140 Prohibited activities.
6.32.150 General noise regulations.
6.32.010 Purpose.
The City Council of Elk Grove finds:
A. Excessive, unnecessary or offensive noise within the City is detrimental to the public health, safety, welfare and the peace and quiet of the inhabitants of the City and therefore is declared a public nuisance; and
B. Every person in the City is entitled to live in an environment free from excessive, unnecessary or offensive noise levels; and
C. The establishment of maximum permissible noise levels will further the public health, safety, welfare and peace and quiet of City inhabitants. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.020 Declaration of policy.
It is declared to be the policy and purpose of this chapter of the EGMC to assess complaints of noises alleged to exceed the ambient noise levels. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.030 Liberal construction.
This chapter shall be liberally construed so as to effectuate its purposes. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.040 Definitions.
For the purposes of this title, the following terms, phrases, words, and their derivations shall have the meanings given in this chapter, unless the context clearly indicates or requires a different meaning:
A. “A” Definitions.
1. “A-weighted sound level (La, dB(A), dBA)” means the sound pressure level in decibels as measured on a sound level meter using the A-weighting network as specified in American National Standards Institute documents for sound level meters. The level so read is postscripted dB(A) or dBA.
2. “Affected property” means the receiving property experiencing an increase in noise level due to a noise source from another property.
3. “Ambient noise level” means the all-encompassing noise level associated with a given environment, being a composite of sounds from all sources, excluding the alleged offensive noise, at the location and approximate time at which a comparison with the alleged offensive noise is to be made.
B. Reserved for future use.
C. “C” Definitions.
1. “Construction activities” means any site preparation, assembly, erection, substantial repair, alteration, demolition, or similar action for or within private rights-of-way, structures, utilities, or similar property.
2. “Cumulative period” means an additive period of time composed of individual time segments which may be continuous or interrupted.
D. “D” Definitions.
1. “Decibel” or “dB” means a unit measure of sound (noise) level used to express the relative intensity of sounds, where zero (0) dB represents the average least perceptible sound and one hundred ten (110) dB represents a level of hearing discomfort for the average person. Also a unit for expressing the ratio of two (2) amounts of electric or acoustic signal power equal to ten (10) times the common logarithm of this ratio.
E. “E” Definitions.
1. “Emergency work” means the use of any machinery, equipment, vehicle, manpower or other activity in an effort to protect, maintain, provide or restore safe conditions in the community or for the citizenry, or work by private or public utilities when restoring utility service.
2. “Exterior noise” means any noise as perceived from outside of an enclosed building or structure.
F. Reserved for future use.
G. Reserved for future use.
H. Reserved for future use.
I. “I” Definitions.
1. “Impulsive noise” means a noise characterized by brief excursions of sound pressures whose peak levels are very much greater than the ambient noise level, such as might be produced by the impact of a pile driver, punch press or a drop hammer, typically with one (1) second or less duration.
2. “Interior noise” means any noise as perceived from inside an enclosed building or structure.
J. Reserved for future use.
K. Reserved for future use.
L. “L” Definitions.
1. “Ldn” (day-night average level) means the average equivalent A-weighted sound level during a twenty-four (24) hour day, obtained after the addition of ten (10) decibels to sound levels in the night after 10:00 p.m. and before 7:00 a.m.
2. “Leq (equivalent continuous sound level)” means the sound level in decibels equivalent to the total sound energy measured over a stated period of time.
M. Reserved for future use.
N. “N” Definitions.
1. “Noise” means any sound that is loud or unpleasant or that causes disturbance.
2. “Noise area” means any defined areas or regions of a generally consistent land use wherein the ambient noise levels are within a range of five (5) dB. (Typically, all sites within any given noise area will be of comparable proximity to major noise sources.)
3. “Noise level” means the “A” weighted sound pressure level in decibels obtained by using a sound level meter at slow response with a reference pressure of twenty (20) micropascals. The unit of measurement shall be designated as “dBA.”
O. Reserved for future use.
P. Reserved for future use.
Q. Reserved for future use.
R. “R” Definitions.
1. “Residential property” means a parcel of real property which is developed and used either in part or in whole for residential purposes, other than transient uses such as hotels and motels.
S. “S” Definitions.
1. “Sensitive receptors” means receiving premises used for residential purposes and for nonresidential purposes that are sensitive to noise, including, but not limited to, residential dwellings, schools, hospitals, hotels, and community care facilities as those uses are defined in EGMC Title 23 (Zoning).
2. “Simple tone noise” or “pure tone noise” means a noise characterized by the presence of a predominant frequency or frequencies such as might be produced by a whistle or hum.
3. “Sound level meter” means an instrument meeting the American National Standard Institute’s Standard S1.4-1971 for Type 2 sound level meters or an instrument and the associated recording and analyzing equipment which will provide equivalent data.
4. “Sound pressure level” means a sound pressure level of a sound, in decibels, as defined in ANSI Standards 51.2-1962 and 51.13-1921; that is, twenty (20) times the logarithm to the base ten (10) of the ratio of the pressure of the sound to a reference pressure, which reference pressure shall be explicitly stated.
T. Reserved for future use.
U. Reserved for future use.
V. Reserved for future use.
W. Reserved for future use.
X. Reserved for future use.
Y. Reserved for future use.
Z. “Z” Definitions.
1. “Zone” means any of the zoning districts specified in EGMC Chapter 23.24 as such zones are presently identified therein and as they may be subsequently modified or altered. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.050 Violation.
Violation of this chapter shall be an infraction which shall be enforced pursuant to the provisions of EGMC Chapter 1.04. Upon the receipt of a complaint from any person, Code Enforcement staff may investigate and assess whether the alleged noise levels exceed the noise standards set forth in this chapter. If Code Enforcement officers have reason to believe that any provision(s) of this chapter has been violated, they may cause written notice to be served upon the alleged violator. Such notice shall specify the provision(s) of this chapter alleged to have been violated and the facts alleged to constitute a violation, including dBA readings noted and the time and place of their detection, and may include an order that corrective action be taken within a specified time. If corrective action is not taken within such specified time or any extension thereof approved by the Chief Code Enforcement Officer, upon conviction, the violation shall constitute an infraction. Each day such violation is committed or permitted to continue shall constitute a separate offense and shall be punishable as such. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.060 Other remedies.
A. Provisions of this chapter are to be construed as an added remedy of abatement of the public nuisance declared and not in conflict or derogation of any other action, proceedings or remedies provided by law.
B. Any violation of the provisions of this chapter shall be, and the same is declared to be unlawful and a public nuisance, and the duly constituted authorities of the City shall, upon order of the City Council, immediately commence actions or proceedings for the abatement or enjoinment thereof in the manner provided by law and shall take such steps and shall apply to such court or courts as may have jurisdiction to grant such relief as will abate such nuisance. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.070 Sound level measurement generally.
A. Any noise measurement made pursuant to the provisions of this chapter shall be made with a sound level meter as defined in EGMC Section 6.32.040. Such readings shall be taken as Leq measurements using the A-weighted network (scale) at slow meter response. Fast meter response shall be used for impulsive type sounds. Calibration of the measurement equipment utilizing an acoustical calibrator shall be performed prior to recording any noise data and in accordance with the industry standards appropriate for the particular acoustical calibrator being used.
B. Exterior noise levels shall be measured within the property line of the affected property at a location to be determined by the City. Where practical, the microphone shall be positioned three (3' 0") feet to five (5' 0") feet above the ground and away from reflective surfaces and fences. Interior noise levels shall be measured within the affected property at points at least four (4' 0") feet from the wall, ceiling or floor nearest the noise source, with windows in the closed configuration. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 24-2015 §4 (Exh. B), eff. 2-12-2016; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.080 Exterior noise standards.
A. Except as otherwise provided, it is unlawful for any person to create any noise that results in the exposure of sensitive receptors to noise levels that exceed the levels of Table 6.32-1.
|
|
7:00 am to 10:00 pm |
10:00 pm to 7:00 am |
|---|---|---|
|
Stationary noise sources, generally |
55 dBA |
45 dBA |
|
Stationary noise sources which are tonal, impulsive, repetitive, or consist primarily of speech or music |
50 dBA |
40 dBA |
B. Boundary between Different Noise Areas. If the measurement location is on a boundary between two (2) different designated noise areas, the lower noise level limit applicable to the two (2) areas shall apply.
C. If the measured ambient noise level at the time of a complaint investigation exceeds the identified permissible noise level provided in Table 6.32-1, the allowable noise shall conform to the following:
1. Where the ambient noise level is less than sixty (60) dB but greater than the threshold in Table 6.32-1, a maximum increase of five (5) dB above the ambient noise level is allowed.
2. Where the ambient noise level is between sixty (60) dB and sixty-five (65) dB, inclusive, a maximum increase of three (3) dB above the ambient noise level is allowed.
3. Where the ambient noise level is greater than sixty-five (65) dB, a maximum increase of one and one-half (1.5) dB above the ambient noise level is allowed. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.090 Interior noise standards.
A. In any apartment, condominium, townhouse, duplex or multiple dwelling unit it is unlawful for any person to create any noise from inside his unit that causes the noise level when measured in a neighboring unit during the periods 10:00 p.m. to 7:00 a.m. to exceed:
1. Forty-five (45) dBA for a cumulative period of more than five (5) minutes in any hour;
2. Fifty (50) dBA for a cumulative period of more than one (1) minute in any hour;
3. Fifty-five (55) dBA for any period of time.
B. The maximum permissible sound level for interior spaces shall be those shown in Table 6.32-2.
|
Land Use |
Maximum Allowed dB1 |
|---|---|
|
Residential |
45 Ldn |
|
Residential subject to noise from railroad tracks, aircraft overflights, or similar noise sources which produce clearly identifiable, discrete noise events (the passing of a single train, as opposed to relatively steady noise sources such as roadways) |
40 Ldn2 |
|
Transient Lodging |
45 Ldn |
|
Hospitals, Nursing Homes |
45 Ldn |
|
Theaters, Auditoriums, Music Halls |
35 Leq |
|
Churches, Meeting Halls |
40 Leq |
|
Office Buildings |
45 Leq |
|
Schools, Libraries, Museums |
45 Leq |
Notes:
1. As determined for a typical worst-case hour during periods of use.
2. The intent of this noise standard is to provide increased protection against sleep disturbance for residences located near railroad tracks.
C. If the measured interior ambient noise level at the time of a complaint investigation exceeds the identified permissible noise level for that use, the allowable noise standard shall be the ambient noise level. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.100 Exemptions.
The following activities shall be exempted from the provisions of this chapter:
A. School bands, school athletic and school entertainment events;
B. Outdoor gatherings, public dances, shows and sporting and entertainment events, provided said events are conducted pursuant to a license or permit by the City;
C. Activities conducted on parks, public playgrounds and school grounds, provided such parks, playgrounds and school grounds are owned and operated by a public entity or private school;
D. Any mechanical device, apparatus or equipment related to or connected with emergency activities or emergency work; the exemption does not include permanently installed emergency generators;
E. Noise sources associated with construction, repair, remodeling, demolition, paving or grading of any real property, provided said activities only occur between the hours of 7:00 a.m. and 7:00 p.m. when located in close proximity to residential uses. Noise associated with these activities not located in close proximity to residential uses may occur between the hours of 6:00 a.m. and 8:00 p.m. However, when an unforeseen or unavoidable condition occurs during a construction project and the nature of the project necessitates that work in progress be continued until a specific phase is completed, the contractor or owner shall be allowed to continue work after 7:00 p.m. and to operate machinery and equipment necessary until completion of the specific work in progress can be brought to conclusion under conditions which will not jeopardize inspection acceptance or create undue financial hardships for the contractor or owner;
F. Noise sources associated with agricultural operations, provided such operations do not take place between the hours of 10:00 p.m. and 7:00 a.m.;
G. All mechanical devices, apparatus or equipment which are utilized for the protection or salvage of agricultural crops during periods of adverse weather conditions or when the use of mobile noise sources is necessary for pest control;
H. Any activity, to the extent provisions of Chapter 65 of Title 42 of the United States Code, and Articles 3 and 3.5 of Chapter 4 of Division 9 of the Public Utilities Code of the State of California preempt local control of noise regulations and land use regulations related to noise control of airports and their surrounding geographical areas, any noise source associated with the construction, development, manufacture, maintenance, testing or operation of any aircraft engine, or of any weapons system or subsystems which are owned, operated or under the jurisdiction of the United States, or any other activity to the extent regulation thereof has been preempted by State or Federal law or regulation;
I. Any noise sources associated with the maintenance and operation of aircraft or airports which are owned or operated by the United States;
J. Railroad Activities. The operation of locomotives, rail cars, and facilities by a railroad that is regulated by the State Public Utilities Commission;
K. State or Federal Preexempted Activities. Any activity, to the extent the regulation of it has been preempted by State or Federal law;
L. Public Health and Safety Activities. All transportation, flood control, and utility company maintenance and construction operation at any time on public rights-of-way, and those situations that may occur on private property deemed necessary to serve the best interest of the public and to protect the public’s health and well-being, including debris and limb removal, removal of damaged poles and vehicles, removal of downed wires, repairing traffic signals, repair of water hydrants and mains, gas lines, oil lines, and sewers, restoring electrical service, street sweeping, unplugging sewers, vacuuming catch basins, etc. The regular testing of motorized equipment and pumps shall not be exempt;
M. Solid Waste Collection. Noise sources associated with the authorized collection of solid waste (e.g., refuse and garbage);
N. Maintenance of Residential Real Property. Noise sources associated with the minor maintenance and operation of residential real property, including but not limited to pool equipment and heating and air conditioning units. Additionally, yard maintenance equipment and other power tools may be allowed provided the activities take place between the hours of 7:00 a.m. and 10:00 p.m. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 24-2015 §4 (Exh. B), eff. 2-12-2016; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.110 Machinery, equipment, fans and air conditioning.
Except as otherwise provided, it is unlawful for any person to operate any mechanical equipment, pump, fan, air conditioning apparatus, stationary pumps, stationary cooling towers, stationary compressors, similar mechanical devices, or any combination thereof in any manner so as to create any noise which would cause the maximum noise level to exceed a maximum limit of fifty-five (55) dBA. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.120 Off-road vehicles.
It is unlawful for any person to operate any motorcycle or recreational off-road vehicle within the City in such a manner that the noise level exceeds the exterior noise standards specified in EGMC Section 6.32.080. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.130 Radios, music playing devices, and televisions on publicly owned property.
Notwithstanding any other provision of this code and in addition thereto, it is unlawful for any person to permit or cause any noise, sound, music or program to be emitted from any radio, music playing device or television outdoors on or in any publicly owned property, park or place when such noise, sound, music or program is audible to a person one hundred (100' 0") feet from said radio, music playing device or television.
A. Notwithstanding any other provision of this code, no citation or notice to appear shall be issued or criminal complaint shall be filed for a violation of this section unless the offending party is first given a verbal or written notification of violation by any peace officer, public officer, park ranger or other person charged with enforcing this section and the offending party given an opportunity to correct said violation.
B. This section shall not apply to the use of radios, music playing devices or televisions in the course of an assembly or festival for which a license has been issued pursuant to EGMC Section 9.36.074 or a parade for which a permit has been issued pursuant to EGMC Section 10.32.020 or any other activity, assembly or function for which a permit or license has been duly issued pursuant to any provision of the code. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.140 Prohibited activities.
The following acts shall be a violation of this chapter:
A. Construction Noise. Operating or causing the operation of tools or equipment on private property used in alteration, construction, demolition, drilling or repair work daily between the hours of 7:00 p.m. and 7:00 a.m. when located in close proximity to residential uses, or between the hours of 8:00 p.m. and 6:00 a.m. when not located in close proximity to residential uses, so that the sound creates a noise disturbance across a residential property line, except for emergency work of public service utilities. However, when an unforeseen or unavoidable condition occurs during a construction project and the nature of the project necessitates that work in process be continued until a specific phase is completed, the contractor or owner shall be allowed to continue work after 8:00 p.m. and to operate machinery and equipment necessary until completion of the specific work in progress can be brought to conclusion under conditions which will not jeopardize inspection acceptance or create undue financial hardships for the contractor or owner.
B. Loading and Unloading Activities. Loading, unloading, opening, closing or other handling of boxes, crates, containers, building materials, garbage cans, or similar objects on private property between the hours of 10:00 p.m. and 7:00 a.m. in a manner to cause a noise disturbance.
C. Sweepers and Associated Equipment. Operating or allowing the operation of sweepers or associated sweeping equipment (e.g., blowers) on private property between the hours of 10:00 p.m. and 7:00 a.m. in, or adjacent to, a residential zoning district.
D. Places of Public Entertainment. Operating or allowing to be operated any loudspeaker, musical instrument, or other source of sound in any place of public entertainment that exceeds ninety-five (95) dbA at any point normally occupied by a customer.
E. Stationary Nonemergency Signaling Devices. Sounding or allowing the sounding of an electronically amplified signal from a stationary bell, chime, siren, whistle, or similar devices intended for nonemergency purposes, from a private property for more than ten (10) consecutive seconds in any hourly period.
F. Public Nuisance Noise. Public nuisance noise is noise that is generally not associated with a particular land use but creates a nuisance situation by reason of its being disturbing, excessive, or offensive. Examples would include excessively loud noise from alarms, animals and fowl in nonagricultural districts, horns, musical instruments, stereos, music players, televisions, vehicle or motorboat repairs and testing, and similar noise. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 24-2015 §4 (Exh. B), eff. 2-12-2016; Ord. 9-2011 §3, eff. 6-24-2011]
6.32.150 General noise regulations.
Notwithstanding any other provisions of this chapter and in addition thereto, it is unlawful for any person to willfully make or cause to be made any loud, unnecessary or unusual noise which disturbs the peace and quiet of any neighborhood or which causes discomfort or annoyance to persons residing in the area.
The standards which shall be considered in determining whether a violation of the provisions of this section exists shall include, but not be limited to, the following:
A. The sound level of the objectionable noise;
B. The sound level of the ambient noise;
C. The proximity of the noise to residential sleeping facilities;
D. The nature and zoning of the area within which the noise emanates;
E. The density of the inhabitation of the area within which the noise emanates;
F. The time of day or night the noise occurs;
G. The duration of the noise and its tonal informational or musical content;
H. Whether the noise is continuous, recurrent or intermittent;
I. Whether the noise is produced by a commercial or noncommercial activity. [Ord. 6-2019 §3 (Exh. A), eff. 4-26-2019; Ord. 9-2011 §3, eff. 6-24-2011]