[Ord. 970, 5/16/2007, § 1001]
1.
The following standards shall apply to all permitted uses and conditional uses in all zoning districts. In order to determine whether a proposed conditional use will conform to the requirements of this Part, the Planning Commission or Borough Council may require a qualified consultant whose credentials are acceptable to Council or the Board to testify, whose cost for services shall be borne by the applicant.
A.
Fire Protection. Fire prevention and fighting equipment which conforms to the requirements of Chapter 5 of the Forest Hills Borough Code of Ordinances, "Code Enforcement," shall be readily available when any activity involving the handling or storage of flammable or explosive materials is carried on.
B.
Electrical Disturbance. No activity shall cause electrical disturbance adversely affecting radio or other equipment in the vicinity.
C.
Noise.
(1)
No operation or activity shall cause or create noise in excess of the sound levels prescribed below. For the purposes of this chapter, the noise level will be measured in decibels (dBA) which indicate the sound pressure level obtained from a frequency weighting network corresponding to the A-scale on a standard sound level meter.
(a)
Residential and Special Districts. At no point on or beyond the boundary of any lot within these districts shall the exterior noise level resulting from any use or activity located on such lot exceed a maximum of 75 dBA for more than one hour per 24 hours.
(b)
Business District. At no point on or beyond the boundary of any lot within these districts shall the exterior noise level resulting from any use or activity located on such lot exceed a maximum of 75 dBA for more than eight hours per 24 hours.
(c)
Where two zoning districts in which different noise levels are prescribed, share a common boundary, the most restrictive of the noise level standards shall govern.
(2)
The following uses or activities shall be exempted from the noise regulations: (a) noises emanating from construction and/or maintenance activities between 7:00 a.m. and 9:00 p.m.; and, (b) noises caused by safety signals, warning devices and other emergency-related activities or uses.
(3)
In addition to these regulations, all uses or activities within the Borough shall conform to any applicable county, state or federal noise regulations.
D.
Vibrations.
(1)
Vibration shall be measured at or beyond any adjacent lot line or residential district line as indicated in Table A below and such measurements shall not exceed the particle velocities so designated. The instrument used for these measurements shall be a three component measuring system capable of simultaneous measurement of vibration in three mutually perpendicular directions.
(2)
The maximum vibration is given as particle velocity, which may be measured directly with suitable instrumentation or computed on the basis of displacement and frequency. When computed, the following formula shall be used:
(3)
The maximum particle velocity shall be the vector sum of the three individual components recorded. Such particle velocity shall not exceed the values given in Table 27-A. Where vibration produces discrete impulses, and such impulses do not exceed a frequency of 100 per minute, then the values in Table A may be multiplied by 2.
Table 27-A | |||
|---|---|---|---|
Maximum Ground Transmitted Vibration by Zoning Districts | |||
Particle Velocity in Inches/Second | |||
Vibration Measured in: | Adjacent Lot Line | Residential and Special Districts | |
Residential and Special Districts | 0.02 | 0.02 | |
Business District | 0.06 | 0.02 | |
E.
Odors. No malodorous gas or matter shall be permitted which is discernible on any adjacent lot or property. There shall be no emission of any malodorous gas or matter which violates the regulations of the Allegheny County Health Department.
F.
Smoke, Ash, Dust, Fumes, Vapors and Gases. There shall be no emission at any point for longer than five minutes in any hour of visible gray or other color smoke with a shade darker than No. 3 on the Standard Ringlemann Chart issued by the U.S. Bureau of Mines; nor shall there be any emission at any point from any source which can cause damage to health, to animals or vegetation or other forms of property or which can cause excessive soiling at any point.
G.
Lighting and Glare. No direct or sky-reflected glare, whether from floodlights or from high temperature processes shall be visible from adjacent public streets or adjacent lots when viewed by a person standing on ground level. For the purposes of interpreting this subsection, glare shall be defined as direct or indirect light from any source which exceeds 1/2-foot candle on any adjacent property. In all zoning districts, all lighting devices located within 100 feet of a property line adjacent to residential use or zoning classification shall be designed with shields, reflectors or refractor panels which direct and cut off light at a cutoff angle which is less than 90°. Cutoff angle is defined as the angle formed by a line drawn from the direction of the light rays at the light source and a line perpendicular to the ground from the light source above which no light is emitted.
H.
Erosion. No erosion by wind, water or other source shall be permitted which will carry objectionable substances onto neighboring properties. All activities shall be subject to the requirements of the Allegheny County Soil Conservation Service and shall be governed by any permits issued by that agency.
I.
Water Pollution. Water pollution shall be subject to the standards established by the Pennsylvania Department of Environmental Protection (DEP).