D.C. Mun. Regs. tit. 11 § 804

Current through Register Vol. 71, No. 21, May 24, 2024
Rule 11-804 - STANDARDS OF EXTERNAL EFFECTS (C-M)
804.1

All uses established in a C-M District under authority of § 801.7 and any uses accessory to those uses shall be operated so as to comply with the standards of external effects in this section.

804.2

The volume of sound inherently and recurrently generated shall not exceed the standards in §§ 804.3 through 804.6 at any point along the boundaries of the zone district in which the use is located.

804.3

Sound 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.

804.4

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

804.5

[Deleted]

804.6

Except as provided in § 804.7, 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

72

75-149

67

150-299

59

300-599

52

600-1,199

46

1,200-2,399

40

2,400-4,800

34

Above 4,800

32

804.7

Where a C-M District abuts an M District, the standards in § 825 shall apply along the zone boundary separating the C-M and M Districts.

804.8

The emission of any smoke from any source to a density greater than that density described as No. 2 on the Ringelmann Smoke Chart shall be prohibited. The Ringelmann Smoke Chart, published by the Bureau of Mines, U.S. Department of the Interior, in Information Circular 8333, shall be adopted by reference and made a part of this title.

804.9

The 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 zone district in which the use is located shall be prohibited.

804.10

No noxious, toxic, or corrosive fumes or gases shall be permitted to escape or to be discharged from any use permitted in a C-M District.

804.11

No objectionable amounts of cinders, dust, or fly-ash shall be permitted to escape or to be discharged from any use permitted in a C-M District.

804.12

No 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.

804.13

Every 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.

804.14

Where an Electronic Equipment Facility (EEF) use is proposed in a C-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.

D.C. Mun. Regs. Tit. 11, § 804

§ 6101.6 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, 8417-8418 (October 20, 2000); and Final Rulemaking published at 48 DCR 9830, 9836-37 (October 26, 2001)