1-C GENERAL DEVELOPMENT STANDARDS
Effective on: 1/1/1901
Effective on: 1/1/1901
Effective on: 1/1/1901
| Blasting Ground Vibration Standards | |||
| Blast Type | Parcels Within 500 Ft. of Blast | Maximum Allowable Peak Particle Velocity for Ground Vibration in Inches/Second | |
| Frequencies - 4-30 Hz | Frequencies > 30 Hz | ||
| Intermittent Blasting: (i.e., temporary construction activities) | Developed parcels Vacant/agricultural parcels | 0.75 see OSMRE blasting chart | 1.0 see OSMRE blasting chart |
| Recurring Blasting: (i.e., mineral extraction purposes) | Developed parcels Vacant/agricultural parcels | 0.50 see OSMRE blasting chart | 0.50 see OSMRE blasting chart |
NOTE: Particle velocity shall be recorded in 3 mutually perpendicular directions and shall be measured from the blast location to the property line of surrounding parcels within 500 feet of the blast. The maximum allowable peak particle velocity shall apply to each of the 3 measurements. Some of these standards are below guidelines established by the Federal Office of Surface Mining Reclamation and Enforcement (OSMRE) in their Blasting Level Chart, Figure 12, Blasting Guidance Manual, March 1987. The Blasting Level Chart determines the threshold vibration levels which may indicate potential for structural damage. The standards noted above attempt to take into account some of the negative psychological responses that can result from blasting adjacent to occupied structures, particularly for recurring blasting. However, it is understood that occasional, nonroutine blasting at higher levels may be needed for specific purposes. Therefore, the Fire Chief may modify these requirements to minimize complaints or to allow blasting at higher levels for specific purposes.
| Airblast Vibration/Noise Standards* | |
| Lower Frequency Limit of Measuring System, in HZ | Maximum Level in dB (+, -3dB) |
| 2 Hz or lower - flat response | 133 peak |
| 6 Hz or lower - flat response | 129 peak |
NOTE: An airblast shall not exceed the maximum limits noted above measured at the property line of adjoining property containing any building. The Fire Chief may modify these standards for unique blasting needs or to prevent damage.
* "Blast Monitoring" (Applies to both tables): The blast contractor shall conduct periodic monitoring of blasts to ensure compliance with these vibrations/noise standards. The Fire Chief may require monitoring of shots that appear to deviate from established standards or that are located within 300 feet of an existing building. A seismographic record, including both particle velocity and vibration frequency levels shall be provided.
All exterior lighting shall be installed in conformance with the provisions of this Ordinance and the most recently adopted Electrical and Energy codes.
Definitions: When used in the context of this section the following terms are defined as follows:
Existing development is not subject to the lighting standards of this section until such time as the building or site area is proposed for redevelopment or when alterations to the site or building involve the installation of new fixtures or require existing fixtures to be modified or replaced.
This section does not apply to Street Lighting. Street Lighting shall comply with Article 4-6-E of the Unified Development Code.
Outdoor Recreational Uses: Because of their unique requirements for nighttime visibility and their limited hours of operation, public, or privately owned ball fields, driving ranges, tennis courts, outside theaters, arenas and other similar outdoor recreational uses shall be reviewed on a case by case basis in order to determine appearance and performance qualities that are appropriate for the specific use and compatible with neighboring development. The following provisions would apply to all outdoor recreational uses:
Full cutoff fixtures are not required for these types of outdoor recreational use areas provided the light source is shielded to minimize light trespass to surrounding residential properties and neighborhoods:
Maximum permitted illumination at the property line of the recreational use, as generated by the recreational use is one footcandle.
Lighting shall be controlled in a manner to be capable of being turned off automatically 1 hour after close of business.
Seasonal Lighting: Temporary lighting utilized in connection with holidays and other typically celebrated traditions are exempt from this section, provided the output of any individual light source used for this lighting situation does not exceed 50 lumens.
| Maximum Lighting Levels for Outdoor Activity Areas | |||||
| Building Entries | Parking Lots and other Vehicular Staging Areas | Pedestrian Walkways | Under Fueling Station Canopies | ||
| Maximum allowable single point light levels measured in horizontal footcandles at-grade | 15.0 | 10.0 (Discernable blocks of vehicular use areas, located on the same property, must be calculated separately) | |||
| 05.0 | 25.0 | ||||
The lighting design for parking lots must incorporate an average/minimum uniformity ratio of 5:1 (average horizontal light level divided by the minimum horizontal light level). | |||||
| Lighting plans shall be designed so that direct and indirect light from the source shall not cause illumination in excess of 0.5 vertical footcandles when measured at any point along the property line of an adjacent residential district. | |||||
J. Sulfur Oxides:
K. Smoke:
L. Toxic Matter:
Effective on: 1/1/1901
Effective on: 1/1/1901
| Intersecting Street | Distance (feet) |
| Arterial | 600 |
| Collector | 300 |
| Local | 75 |
Effective on: 1/1/1901
| No. of Parking Spaces Served | Minimum Width of Sidewalk |
| Under 50 | 5 feet |
| 50 - 200 | 6 feet |
| 201 - 500 | 8 feet |
| Over 500 | 10 feet |
Effective on: 1/1/1901
Repealed by Ordinance 5260.
Effective on: 1/1/1901
1-C GENERAL DEVELOPMENT STANDARDS
Effective on: 1/1/1901
Effective on: 1/1/1901
Effective on: 1/1/1901
| Blasting Ground Vibration Standards | |||
| Blast Type | Parcels Within 500 Ft. of Blast | Maximum Allowable Peak Particle Velocity for Ground Vibration in Inches/Second | |
| Frequencies - 4-30 Hz | Frequencies > 30 Hz | ||
| Intermittent Blasting: (i.e., temporary construction activities) | Developed parcels Vacant/agricultural parcels | 0.75 see OSMRE blasting chart | 1.0 see OSMRE blasting chart |
| Recurring Blasting: (i.e., mineral extraction purposes) | Developed parcels Vacant/agricultural parcels | 0.50 see OSMRE blasting chart | 0.50 see OSMRE blasting chart |
NOTE: Particle velocity shall be recorded in 3 mutually perpendicular directions and shall be measured from the blast location to the property line of surrounding parcels within 500 feet of the blast. The maximum allowable peak particle velocity shall apply to each of the 3 measurements. Some of these standards are below guidelines established by the Federal Office of Surface Mining Reclamation and Enforcement (OSMRE) in their Blasting Level Chart, Figure 12, Blasting Guidance Manual, March 1987. The Blasting Level Chart determines the threshold vibration levels which may indicate potential for structural damage. The standards noted above attempt to take into account some of the negative psychological responses that can result from blasting adjacent to occupied structures, particularly for recurring blasting. However, it is understood that occasional, nonroutine blasting at higher levels may be needed for specific purposes. Therefore, the Fire Chief may modify these requirements to minimize complaints or to allow blasting at higher levels for specific purposes.
| Airblast Vibration/Noise Standards* | |
| Lower Frequency Limit of Measuring System, in HZ | Maximum Level in dB (+, -3dB) |
| 2 Hz or lower - flat response | 133 peak |
| 6 Hz or lower - flat response | 129 peak |
NOTE: An airblast shall not exceed the maximum limits noted above measured at the property line of adjoining property containing any building. The Fire Chief may modify these standards for unique blasting needs or to prevent damage.
* "Blast Monitoring" (Applies to both tables): The blast contractor shall conduct periodic monitoring of blasts to ensure compliance with these vibrations/noise standards. The Fire Chief may require monitoring of shots that appear to deviate from established standards or that are located within 300 feet of an existing building. A seismographic record, including both particle velocity and vibration frequency levels shall be provided.
All exterior lighting shall be installed in conformance with the provisions of this Ordinance and the most recently adopted Electrical and Energy codes.
Definitions: When used in the context of this section the following terms are defined as follows:
Existing development is not subject to the lighting standards of this section until such time as the building or site area is proposed for redevelopment or when alterations to the site or building involve the installation of new fixtures or require existing fixtures to be modified or replaced.
This section does not apply to Street Lighting. Street Lighting shall comply with Article 4-6-E of the Unified Development Code.
Outdoor Recreational Uses: Because of their unique requirements for nighttime visibility and their limited hours of operation, public, or privately owned ball fields, driving ranges, tennis courts, outside theaters, arenas and other similar outdoor recreational uses shall be reviewed on a case by case basis in order to determine appearance and performance qualities that are appropriate for the specific use and compatible with neighboring development. The following provisions would apply to all outdoor recreational uses:
Full cutoff fixtures are not required for these types of outdoor recreational use areas provided the light source is shielded to minimize light trespass to surrounding residential properties and neighborhoods:
Maximum permitted illumination at the property line of the recreational use, as generated by the recreational use is one footcandle.
Lighting shall be controlled in a manner to be capable of being turned off automatically 1 hour after close of business.
Seasonal Lighting: Temporary lighting utilized in connection with holidays and other typically celebrated traditions are exempt from this section, provided the output of any individual light source used for this lighting situation does not exceed 50 lumens.
| Maximum Lighting Levels for Outdoor Activity Areas | |||||
| Building Entries | Parking Lots and other Vehicular Staging Areas | Pedestrian Walkways | Under Fueling Station Canopies | ||
| Maximum allowable single point light levels measured in horizontal footcandles at-grade | 15.0 | 10.0 (Discernable blocks of vehicular use areas, located on the same property, must be calculated separately) | |||
| 05.0 | 25.0 | ||||
The lighting design for parking lots must incorporate an average/minimum uniformity ratio of 5:1 (average horizontal light level divided by the minimum horizontal light level). | |||||
| Lighting plans shall be designed so that direct and indirect light from the source shall not cause illumination in excess of 0.5 vertical footcandles when measured at any point along the property line of an adjacent residential district. | |||||
J. Sulfur Oxides:
K. Smoke:
L. Toxic Matter:
Effective on: 1/1/1901
Effective on: 1/1/1901
| Intersecting Street | Distance (feet) |
| Arterial | 600 |
| Collector | 300 |
| Local | 75 |
Effective on: 1/1/1901
| No. of Parking Spaces Served | Minimum Width of Sidewalk |
| Under 50 | 5 feet |
| 50 - 200 | 6 feet |
| 201 - 500 | 8 feet |
| Over 500 | 10 feet |
Effective on: 1/1/1901
Repealed by Ordinance 5260.
Effective on: 1/1/1901