Vienna, Virginia · General provision

Sec. 18-548

Extracted standards

12 individual requirements pulled out of this section’s prose, each with the sentence it came from.

Noise

  • where the lot line adjoins or lies within twenty-five (25) feet of the boundary of a residence district, the sound-pressure levels of noise radiated at nighttime shall not exceed at the lot line the values given in Table 2.

  • Noise must be muffled

    All noise shall be muffled so as not to be objectionable due to intermittence, beat frequency, or shrillness.

Other

  • In M and CP district, accessory structures are permitted in any yard.

  • Maximum combustion contaminants0.3 grains per cubic foot

    There shall not be discharged into the atmosphere from any single source of emission combustion contaminants (excluding condensed steam) in any state or combination thereof exceeding at the point of discharge 0.3 grains per cubic foot of gas calculated to twelve (12) percent carbon dioxide at standard conditions.

  • Electromagnetic radiation must comply with FCC

    It shall be unlawful to operate or cause to be operated, any planned or intentional source of electromagnetic radiation ... which does not comply with the then current regulations of the Federal Communications Commission.

  • Filing required for sources above 10 watts10 watts

    it is required that any person intending to operate or cause to be operated, to maintain or cause to be maintained, any planned or intentional source of electromagnetic energy, the radiated power from which exceeds ten watts, shall file, at least 30 days prior to such operation, a description of the radiating device and the operating characteristics thereof with the Town.

  • Maximum radiated power without Town approval1,000 watts

    it shall be unlawful for any person to operate or cause to be operated, to maintain or cause to be maintained any planned or intentional source of electromagnetic energy, the radiated power from which exceeds 1,000 watts, without the express approval of the Town.

  • Maximum vibration at lot line0 g

    No vibration shall be produced which is transmitted through the ground and is discernible without the aid of instruments at or at any point beyond the lot line; nor shall any vibration produced exceed 0.002g peak measured at or beyond the lot line.

  • There shall not be discharged or permitted to escape into the atmosphere, odors which shall be offensive to the public or which endanger public comfort, repose, health, or safety.

  • Particulate matter discharge limit

    There shall not be discharged in any one hour from any sources whatsoever, except as provided in subsection 4 of this section, particulate matter, excluding condensed steam, in total quantities in excess of the amount shown in the preceding table.

  • Maximum smoke opacity (Ringelmann No. 2)2 Ringelmann number

    There shall not be discharged into the atmosphere from any source of emission whatsoever any air contaminant for a period or periods aggregating more than three minutes in any one hour which is as dark or darker in shade than that designated as No. 2 on the Ringelmann Chart.

  • Threshold limit values for contaminants

    There shall not be discharged into the atmosphere any contaminant for which threshold limit values are listed for working atmospheres by the American Conference of Governmental Industrial Hygienists in such quantity that the concentration of the contaminant at ground level at any point beyond the boundary of the property shall at any time exceed the threshold limit.

From the ordinance

All uses in a CP District shall operate in conformance with the limitations set forth in each subsection below.
Sec. 18-548