Section 11-825. STANDARDS OF EXTERNAL EFFECTS (M)

 

825.1All uses established in an M District under §§ 801.7 or 821.3, all Electronic Equipment Facility (EEF) uses established in an M District, and all uses accessory to those uses shall be operated to comply with the standards of external effects in this section.

 

825.2The volume of sound inherently and recurrently generated shall not exceed the standards in §§ 825.3 through 825.6 at any point along the boundaries of the zone district in which the use is located.

 

825.3Sound levels shall be measured with a sound level meter and associated octave band filter manufactured according to standards prescribed by the American Standards Association on May 12, 1958.

 

825.4Objectionable sounds of an intermittent nature shall be controlled so as not to become a nuisance to adjacent uses.

 

825.5Except as provided in § 825.6, maximum sound pressure levels shall not exceed those provided in the following table:

 

OCTAVE BAND (cycles per second)	MAXIMUM SOUND PRESSURE LEVEL IN DECIBELS   (0.0002 dynes per square centimeter)
0-74	79
75-149	74
150-299	66
300.599	59
600-1,199	53
1,200-2,399	47
2,400-4,800	41
Above 4,800	39

 

825.6Where an M District abuts a Residence, Special Purpose, or Commercial District, maximum sound pressure levels along the zone district boundary separating the M District from such districts shall not exceed the standards in § 804.6.

 

825.7The emission of any smoke from any source whatever to a density greater than that permitted by the Fuel Burning Equipment Regulations in 12 DCMR art. 11 (1985) shall be prohibited.

 

825.8The emission of any odorous gases or other odorous matter or steam in quantities that are offensive or noisome at any point along the boundaries of the District in which the use is located shall be prohibited.

 

825.9No noxious, toxic, or corrosive fumes or gases shall be permitted to escape or be discharged from any building or other structure housing any use permitted in an M District.

 

825.10No objectionable amounts of cinders, dust, or fly-ash shall be permitted to escape or be discharged from any building or other structure that houses any use permitted in an M District.

 

825.11No direct or reflected glare or heat from any source shall be detectable in objectionable amounts beyond the boundaries of the zone district in which the use is located.

 

825.12Every use shall be operated so that ground vibration inherently and recurrently generated is not perceptible, without instruments, at any point along any boundary of the zone district in which the use is located.

 

825.13Where an Electronic Equipment Facility (EEF) use is proposed in an M District on a lot that abuts a Residence (R), Special Purpose (SP), Waterfront (W), or Mixed Use (CR) zoned property, the following conditions shall apply:

 

(a)Use of barbed or razor wire that is visible from neighboring property or public space is prohibited; and

 

(b)Any back-up generators or power systems shall be either:

 

(1)Fully enclosed within the principal structure; or

 

(2)Located no closer than two hundred feet (200 ft.) from the nearest R, SP, W, or CR zoned property line.

 

source

§ 6102.6 of the Zoning Regulations, effective May 12, 1958; as amended by: Final Rulemaking published at 47 DCR 9741-43 (December 8, 2000), incorporating by reference the text of Proposed Rulemaking published at 47 DCR 8335, 8422-23 (October 20, 2000); Final Rulemaking published at 48 DCR 9830, 9838 (October 26, 2001); and by Final Rulemaking published at 49 DCR 1655 (February 22, 2002), incorporating by reference the text of Proposed Rulemaking published at 48 DCR 11159, 11164 (December 7, 2001).