As used in this chapter, the following words shall have the following meanings, unless the context clearly requires otherwise:

AMBIENT NOISE LEVEL: The sound level of all encompassing noise associated with a given environment, being usually a composite of sounds from many sources.

COMMERCIAL ESTABLISHMENT: A retail trade or service place of business, an office, a restaurant or a liquor licensed establishment, or any combination thereof.

COMMERCIAL NOISE ZONE: That portion of the Town of Breckenridge indicated as the "commercial noise zone" in the noise zones map, a copy of which is marked exhibit A, attached to ordinance 15, series 2001, available for inspection in the office of the town clerk, and incorporated herein by reference.

CONSTRUCTION NOISE: Any and all sound created by or arising from any activity incidental to the erection, demolition, assembling, altering, installing or equipping of buildings, structures, roads or appurtenances thereof, including land clearing, grading, excavation and filling.

dBA: The sound level in decibels measured on the "A" scale of a standard sound level meter having characteristics defined by the American National Standards Institute, publication S1.4-1971, including successor publications.

DECIBEL: A unit used to express the magnitude of a change in sound level. The difference in decibels between two (2) sound pressure levels is twenty (20) times the common logarithm of their ratio. In sound pressure measurements sound levels are defined as twenty (20) times the common logarithm of the ratio of that sound pressure level to a referenced level of 2 x 10-5 N/m2 (Newton's/meter squared). As an example of the effect of the formula, a three (3) decibel change is a one hundred percent (100%) increase or decrease in the sound level, and a ten (10) decibel change is a one thousand percent (1,000%) increase or decrease in the sound level.

DEVICE: Any mechanism which is intended to, or which actually produces, audible sound when operated or handled.

EMERGENCY VEHICLE: A vehicle used in response to a public calamity or to protect persons or property from an imminent exposure to danger.

EMERGENCY WORK: Work made necessary to restore property to a safe condition following a public calamity or work required to protect persons or property from an imminent exposure to danger.

EXTERIOR LOUDSPEAKER OR AMPLIFIER: A device for the amplification of sound which: a) is located on an exterior deck, patio or balcony of any structure, b) is affixed to the exterior wall of any structure, c) is located in or on any lawn or landscaped area outside of any structure, or d) is otherwise placed, affixed or located outside the exterior walls of any structure.

LIQUOR LICENSED ESTABLISHMENT: An establishment for which a license has been issued under the Colorado beer code, the Colorado liquor code or for which a special events alcoholic beverage license has been issued.

NOISE: Any sound which is unwanted or which causes or tends to cause an adverse psychological or physiological effect on human beings.

NOISE SOURCE: Any equipment, facility or device capable of emitting sound beyond the property boundary of the property on which it is located.

PERSON: Any individual, firm, association, organization, partnership, business, trust, corporation, company, limited liability entity, contractor, supplier, installer, user, owner or operator, including any municipal corporation or its officers or employees.

PUBLIC SPACE: Any real property or structure on real property owned by a governmental entity and normally accessible to the public, including, but not limited to, parks and other recreational areas. For clarification, the term "public space" includes, but is not limited to: (1) the Riverwalk as defined in section 6-3H-5 of this code, (2) the Blue River Plaza, and (3) a town park as defined in section 11-2-1 of this code.

REAL PROPERTY BOUNDARY: An imaginary line along the ground surface, and its vertical extension, which separates the real property owned by one person from that owned by another person.

RESIDENTIAL NOISE ZONE: That portion of the Town of Breckenridge indicated as the "residential noise zone" in the noise zone map, a copy of which is marked exhibit A, attached to ordinance 15, series 2001, available for inspection in the office of the town clerk and incorporated herein by reference. Unless otherwise determined by the town council, any real property annexed to the town after the effective date of this chapter shall be presumed to be located in the town's residential noise zone even though not indicated on the noise zone map.

TOWN NOISE ZONES: The portions of the town which are defined as the "commercial noise zone" and the "residential noise zone" in this section. (Ord. 15, Series 2001; amd. Ord. 28, Series 2021)