The performance standards established in this chapter are intended to ensure that uses and activities shall occur in a manner to protect the public health and safety and that do not produce adverse impacts on surrounding properties nor the community at large. The standards contained in this chapter apply to all zones. If necessary, the city will retain a professional expert or designated regulatory agency to assist in assessing possible impacts, and the applicant or business owner will pay any cost incurred.
(Ord. No. 1000 § 4, 2022)
Land or buildings shall not be used or occupied in a manner creating any dangerous injurious, noxious, fire, explosive or other hazard; noise, vibration, smoke, dust, odor, or form of air pollution; heat, cold, dampness, electrical, or other disturbance; glare, refuse, or wastes; or other substances, conditions, or elements which would adversely affect the surrounding area. All uses shall conform to the regulations of this chapter in addition to the regulations set forth for the district in which the use is situated.
(Ord. No. 1000 § 4, 2022)
Measurements necessary for enforcement of performance standards set forth in this chapter shall be taken from a location as follows relative to the property and/or building, activity, and/or use.
A. 
Within a nonresidential zone that is adjacent to a nonresidential zone: 300 feet from where the building, activity, and/or use is located;
B. 
Within a nonresidential zone that is adjacent to a residential zone: 300 feet from the property line of the property where the building, activity and/or use is located; and
C. 
Within a residential zone that is adjacent to a residential zone: at the property line.
(Ord. No. 1000 § 4, 2022)
The following standards are intended to ensure that the use, handling, storage, and transportation of hazardous materials comply with all applicable state laws (including, but not limited to, Government Code § 65850.2 and Health and Safety Code § 25505, et seq.) and that appropriate information is reported to the fire district as the regulatory authority.
A. 
Reporting requirements. All businesses required by state law (Health and Safety Code § 6.95) to prepare hazardous materials release response plans and hazardous materials inventory statements shall, upon request, submit copies of these plans, including any revisions, to the fire district.
B. 
Underground storage. Underground storage of hazardous materials shall comply with all applicable requirements of state law (including, but not limited to, Health and Safety Code § 6.7). Businesses that use underground storage tanks shall comply with the following procedures:
1. 
Notify the fire district of any unauthorized release of hazardous materials prescribed by city, county, state, and federal regulations.
2. 
Notify the fire district and the county health department of any proposed abandoning, closing, or ceasing operation of an underground storage tank and actions to be taken to dispose of any hazardous materials.
3. 
Submit copies of the closure plan to the fire district.
C. 
Aboveground storage. Aboveground storage tanks for hazardous materials and flammable and combustible materials may be allowed subject to the approval of the fire district.
D. 
New development. Structures adjacent to a commercial supply bulk transfer delivery system with at least six-inch pipes shall be designed to accommodate a setback of at least 100 feet from that delivery system. The setback may be reduced if the planning director, with recommendation from the fire district, can make one or more of the following findings:
1. 
The structure would be protected from the radiant heat of an explosion by berming or other physical barriers.
2. 
A 100-foot setback would be impractical or unnecessary because of existing topography, streets, parcel lines, or easements.
3. 
A secondary containment system for petroleum pipelines and transition points shall be constructed. The design of the system shall be subject to the approval of the fire district.
E. 
Notification required. A subdivider of a development within 500 feet of a pipeline shall notify a new/potential owner before the time of purchase and the close of escrow of the location, size, and type of pipeline.
F. 
Location requirements. Properties that store, generate, or dispose of hazardous materials shall locate these operations as far as possible from areas of neighboring properties where people congregate.
(Ord. No. 1000 § 4, 2022)
A. 
Purpose. In order to control unnecessary, excessive, and annoying noise and vibration in the city, it is hereby declared to be the policy of the city to prohibit such noise generated from or by all sources as specified in this section. The provisions apply within all jurisdictions within all zones. Provisions apply based on the designated noise zones:
1. 
Noise Zone I: All single-and multiple-family residential properties.
2. 
Noise Zone II: All commercial properties.
B. 
Decibel measurement criteria. Any decibel measurement made pursuant to the provisions of this section shall be based on a reference sound pressure of 20 micropascals as measured with a sound level meter using the A-weighted network (scale) at slow response.
C. 
Exterior noise standards.
1. 
It shall be unlawful for any person at any location within the city to create any noise or allow the creation of any noise on the property owned, leased, occupied, or otherwise controlled by such person, which causes the noise level when measured on the property line of any other property to exceed the basic noise level as adjusted below:
a. 
Basic noise level for a cumulative period of not more than 15 minutes in any one hour; or
b. 
Basic noise level plus five dBA for a cumulative period of not more than ten minutes in any one hour; or
c. 
Basic noise level plus 14 dBA for a cumulative period of not more than five minutes in any one hour; or
d. 
Basic noise level plus 15 dBA at any time.
2. 
If the measurement location is a boundary between two different noise zones, the lower noise level standard shall apply.
3. 
If the intruding noise source is continuous and cannot reasonably be discontinued or stopped for a time period whereby the ambient noise level can be determined, the measured noise level obtained while the noise is in operation shall be compared directly to the allowable noise level standards as specified respective to the measurement's location, designated land use, and for the time of day the noise level is measured. The reasonableness of temporarily discontinuing the noise generation by an intruding noise source shall be determined by the planning director for the purpose of establishing the existing ambient noise level at the measurement location.
D. 
Special exclusions. The following activities shall be exempted from the provisions of this section:
1. 
City-or school-approved activities conducted on public parks, public playgrounds, and public or private school grounds including, but not limited to, athletic and school entertainment events between the hours of 7:00 a.m. and 10:00 p.m.
2. 
Occasional outdoor gatherings, dances, shows, and sporting and entertainment events, provided said events are conducted pursuant to the approval of a temporary use permit issued by the city.
3. 
Any mechanical device, apparatus, or equipment used, related to, or connected with emergency machinery, vehicle, work, or warning alarm or bell, provided the sounding of any bell or alarm on any building or motor vehicle shall terminate its operation within 30 minutes in any hour of its being activated.
4. 
Noise sources associated with, or vibration created by, construction, repair, remodeling, or grading of any real property or during authorized seismic surveys, provided said activities:
a. 
When adjacent to a residential land use, school, church or similar type of use, the noise generating activity does not take place between the hours of 8:00 p.m. and 7:00 a.m. on weekdays, including Saturday, or at any time on Sunday or a national holiday, and provided noise levels created do not exceed the noise standard of 65 dBA when measured at the adjacent property line.
b. 
When adjacent to a commercial or industrial use, the noise generating activity does not take place between the hours of 10:00 p.m. and 6:00 a.m. on weekdays, including Saturday and Sunday, and provided noise levels created do not exceed the noise standards of 70 dBA when measured at the adjacent property line.
5. 
All devices, apparatus, or equipment associated with agricultural operations, provided:
a. 
Operations do not take place between 8:00 p.m. and 7:00 a.m. on weekdays, including Saturday, or at any time on Sunday or a national holiday.
b. 
Such operations and equipment are utilized for protection or salvage of agricultural crops during periods of potential or actual frost damage or other adverse weather conditions.
c. 
Such operations and equipment are associated with agricultural pest control through pesticide application, provided the application is made in accordance with permits issued by, or regulations enforced by, the state department of agriculture.
6. 
Noise sources associated with the maintenance of real property, provided said activities take place between the hours of 7:00 a.m. and 8:00 p.m. on any day.
7. 
Any activity to the extent regulation thereof has been preempted by state or federal law.
E. 
Schools, churches, libraries, health care institutions. It shall be unlawful for any person to create any noise which causes the noise level at any school, hospital or similar health care institution, church, or library while the same is in use, to exceed the noise standards specified in this section and prescribed for the assigned noise zone in which the school, hospital, church, or library is located.
F. 
Residential noise standards.
1. 
Table 17.66.050-1 (Residential Noise Limits) includes the maximum noise limits in residential zones. These are the noise limits when measured at the adjacent residential property line (exterior) or within a neighboring home (interior).
TABLE 17.66.050-1 RESIDENTIAL NOISE LIMITS
Location of Measurement
Maximum Allowable
10:00 p.m. to 7:00 a.m.
7:00 a.m. to 10:00 p.m.
Exterior
60 dBA
65 dBA
Interior
45 dBA
50 dBA
Additional:
(A)
It shall be unlawful for any person at any location within the city to create any noise or to allow the creation of any noise which causes the noise level when measured within any other fully enclosed (windows and doors shut) residential dwelling unit to exceed the interior noise standard in the manner described herein.
(B)
If the intruding noise source is continuous and cannot reasonably be discontinued or stopped for a time period whereby the ambient noise level can be determined, each of the noise limits above shall be reduced five dBA for noise consisting of impulse or simple tone noise.
2. 
Other residential noise limitations.
a. 
Peddlers; use of loud noise, etc., to advertise goods, etc. No peddler or mobile vendor or any person in their behalf shall shout, cry out, or use any device or instrument to make sounds for the purpose of advertising in such a manner as to create a noise disturbance.
b. 
Animal noises. No person owning or having the charge, care, custody, or control of any dog or other animal or fowl shall allow or permit the same to habitually howl, bark, yelp, or make other noises, in such a manner as to create a noise disturbance.
c. 
Radios, television sets, musical instruments, and similar devices. No person shall operate or permit the operation or playing of any device which reproduces, produces, or amplifies sound, such as a radio, musical instrument, phonograph, or sound amplifier, in such a manner as to create a noise disturbance.
i. 
Across any real property boundary or within Noise Zone I, between the hours of 10:00 p.m. and 7:00 a.m. on the following day (except for activities for which a temporary use permit has been issued).
ii. 
At 50 feet from any such device, if operated on or over any public right-of-way.
G. 
Commercial and office noise provisions. All operations and businesses shall be conducted to comply with the following standards:
1. 
All commercial and office activities shall not create any noise that would exceed an exterior noise level of 65 dBA during the hours of 10:00 p.m. to 7:00 a.m. and 70 dBA during the hours of 7:00 a.m. to 10:00 p.m. when measured at the adjacent property line.
2. 
Loading and unloading. No person shall cause the loading, unloading, opening, closing, or other handling of boxes, crates, containers, building materials, garbage cans, or similar objects between the hours of 10:00 p.m. and 7:00 a.m., in a manner which would cause a noise disturbance to a residential area.
3. 
Vehicle repairs and testing. No person shall cause or permit the repairing, rebuilding, modifying, or testing of any motor vehicle, motorcycle, or motorboat in such a manner as to increase a noise disturbance between the hours of 10:00 p.m. and 8:00 a.m. adjacent to a residential area.
H. 
Industrial noise provision included in Table 17.66.110-1 (Industrial Performance Standards).
(Ord. No. 1000 § 4, 2022)
A. 
Sources of odorous emissions, particulate matter, and air containment standards shall comply with the rules and regulations of the air pollution control district and the state Health and Safety Code.
B. 
Noxious odorous emissions in a manner or quantity that is detrimental to or endanger the public health, safety, comfort, or welfare is declared to be a public nuisance and unlawful, and shall be modified to prevent further emissions release, except for agricultural operations in compliance with this title. No emission of odors shall be permitted in such quantities as to be readily detectable when diluted in the ratio of one volume of odorous air to four volumes of clean air at the property line as specified in section 17.66.030 (Points of Measurement) of this chapter. Any process which may involve the creation or emission of any odors shall be provided with a secondary safeguard system, so that control will be maintained if the primary safeguard system should fail.
C. 
No dust or particulate matter shall be emitted that is detectable by a reasonable person without instruments.
D. 
Exhaust air ducts shall be located or directed away from abutting residentially zoned properties.
(Ord. No. 1000 § 4, 2022)
Uses that generate vibrations that may be considered a public nuisance or hazard on any adjacent property shall be cushioned or isolated to prevent generation of vibrations. Uses shall be operated in compliance with the following provisions:
A. 
No vibration shall be produced that is transmitted through the ground and is discernible without the aid of instruments at the points of measurement specified in section 17.66.030 (Points of Measurement) of this chapter, nor shall any vibration produced exceed 0.002g peak at up to 50 CPS frequency, measured at the point of measurement specified in section 17.66.030 (Points of Measurement) of this chapter using either seismic or electronic vibration measuring equipment. Vibrations occurring at higher than 50 CPS frequency of a periodic vibration shall not induce accelerations exceeding 0.001g. Single-impulse periodic vibrations occurring at an average interval greater than five minutes shall not induce accelerations exceeding 0.01g.
B. 
New development shall not cause vibration of more than 85 VdB within 200 feet of an existing structure.
C. 
Uses, activities, and processes shall not generate vibrations that cause discomfort or annoyance to reasonable persons of normal sensitivity or which endangers the comfort, repose, health, or peace of residents whose property abuts the property line of the parcel.
D. 
Uses shall not generate ground vibration that interferes with the operations of equipment and facilities of adjoining parcels.
E. 
Vibrations from temporary construction/demolition and vehicles that leave the subject parcel (e.g., trucks, trains, and aircraft) are exempt from the provisions of this section.
(Ord. No. 1000 § 4, 2022)
Heat emitted at any point shall not at any time cause a temperature increase on any property in excess of ten degrees Fahrenheit, whether such change be in the air or on the ground, in a natural stream or lake, or in any structure on such adjacent property.
(Ord. No. 1000 § 4, 2022)
No activities shall be permitted which emit dangerous radioactivity at any point or electrical disturbance adversely affecting the operation of any equipment other than that of the creator of such disturbance.
(Ord. No. 1000 § 4, 2022)
No discharge of any matter shall be permitted at any point into any public sewer, private sewage system, or stream or into the ground, except in accordance with standards approved by the state and county departments of health and local ordinances. There shall be no accumulation outdoors of solid wastes conducive to the breeding of rodents, insects, or other pests unless stored in closed containers.
(Ord. No. 1000 § 4, 2022)
Purpose. The performance standards allow industrial uses to operate consistent with the overall characteristics of the land use category to provide for a healthy, safe, and pleasing environment in keeping with the nature and level of surrounding industrial activity. The performance standards contained in Table 17.66.110-1 (Industrial Performance Standards) are applied based on the zones as follows:
A. 
Class A performance standards. The most restrictive of the performance standards to ensure a high-quality working environment and available sites for industrial and business firms whose functional and economic needs require protection from the adverse effects of noise, odors, vibration, glare, or high-intensity illumination, and other nuisances.
B. 
Class B performance standards. These standards are intended to enable a complementary mix of uses and provide for a limited range of industrial activity while assuring a basic level environmental protection. It is the intent of the standards of this section to provide for uses whose operational needs may produce noise, vibration, particulate matter and air contaminants, odors, or humidity, heat, and glare which cannot be mitigated sufficiently to meet the Class A standards. The standards are so designed to protect uses on adjoining sites from effects which could adversely affect their functional and economic viability.
C. 
Class C performance standards. It is the intent of the standards of this section to make allowances for industrial uses whose associated processes produce noise, particulate matter and air contaminants, vibration, odor, humidity, heat, glare, or high-intensity illumination which would adversely affect the functional and economic viability of other uses. The standards, when combined with standards imposed by other governmental agencies, serve to provide basic health and safety protection for persons employed within or visiting the area.
TABLE 17.66.110-1 INDUSTRIAL PERFORMANCE STANDARDS
Class A
Class B
Class C
Noise Maximum
• 70 dB (anywhere on lot)
• 65 dB (interior space of neighboring use on same lot)
• Noise caused by motor vehicles is exempted from this standard.
• 80 dB (anywhere on lot)
• 65 dB (at residential property line)
• Noise caused by motor vehicles and trains is exempted from this standard.
• 85 dB (lot line)
• 65 dB (at residential property line)
• Where a use occupies a lot abutting or separated by a street from a lot within the designated Class A or B performance standard or residential property, the performance standard of the abutting property shall apply at the common or facing lot line.
Vibration
All uses shall be so operated as not to generate vibration discernible without instruments by the average person while on or beyond the lot upon which the source is located or within an adjoining enclosed space if more than one establishment occupies a structure. Vibration caused by motor vehicles, trains, and temporary construction or demolition work is exempted from this standard.
All uses shall be operated so as not to generate vibration discernible without instruments by the average persons beyond the lot upon which the source is located. Vibration caused by motor vehicles, trains, and temporary construction or demolition is exempted from this standard.
All uses shall be operated so as not to generate vibration discernible without instruments by the average person beyond 600 feet from where the source is located. Vibration caused by motor vehicles, trains, and temporary construction and demolition is exempted from this standard.
Particulate Matter and Air Contaminants
In addition to compliance with the Air Quality Management District (AQMD) standards, all uses shall be operated so as not to emit particulate matter or air contaminants that are readily detectable without instruments by the average person while on the lot containing such uses.
In addition to compliance with the AQMD standards, all uses shall be operated so as not to emit particulate matter or air contaminants that are readily detectable without instruments by the average person beyond any lot line of the lot containing such uses.
In addition to compliance with the AQMD standards, all uses shall be operated so as not to emit particulate matter or air contaminants that: (a) are injurious to the health of either persons engaged in or related to the use of the lot, or persons residing, working, visiting, or recreating in neighboring areas; (b) substantially and adversely affect the maintenance of property in nearby areas; (c) are disruptive of industrial processes carried on in other parts of the industrial area. Where a use occupies a lot abutting or separated by a street lot with designated Class A or B, the A or B performance standard for particulate matter and air contaminants shall apply at the common or facing lot line.
Odor
All uses shall be operated so as not to emit matter causing unpleasant odors that are perceptible to the average person while within or beyond the lot containing such uses.
All uses shall be operated so as not to emit matter causing unpleasant odors that are perceptible to the average person beyond any lot line of the lot containing such uses.
All uses shall be operated so as not to emit matter causing unpleasant odors that are perceptible to the average person while within or beyond the lot containing such uses.
Humidity, Heat, and Glare
All uses shall be operated so as not to produce humidity, heat, glare, or high-intensity illumination that is perceptible without instruments by the average person while on or beyond the lot containing such use.
All uses shall be operated so as not to produce humidity, heat, glare, or high-intensity illumination that is perceptible without instruments by the average person beyond the lot line of any lot containing such use.
All uses shall be operated so as not to produce humidity, heat, glare, or high-intensity illumination that is perceptible without instruments by the average person while on any lot zoned for residential purposes or any industrial property with a Class A or B performance standard designation.
(Ord. No. 1000 § 4, 2022; Ord. No. 1015 § 3, 2023)