Portland City Code ch. 14

Citation: Portland City Code ch. 14
Parent Document: Portland City Code ch. 14
Jurisdiction: Portland (municipal)
Original Source: https://www.portlandmaine.gov/asset/ae8cabd1-66eb-4a1c-9224-92bbca5e792f ↗

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sound level meter set to the A weighted E. Discharges into harbor areas. No discharge
scale and the fast meter response (L into harbor water areas shall be permitted,
maxfast). Sounds with a continuous unless permitted by the Maine Department of
duration of 60 seconds or more shall be Environmental Protection under a waste
measured on the basis of the energy discharge license and as approved by the
average sound level over a period of 60 Department of Public Works in accordance
seconds (LEQ1). with Chapter 24, Article III of the City of
3. In addition to the sound level standards Portland Code of Ordinances. All private
otherwise established, facilities or sewage disposal or private wastewater
operations established or built in the treatment facilities shall comply with the
Waterfront Port Development Zone on or provisions of Chapter 24, Article II of the City of
after July 1, 1988, shall employ best Portland Code of Ordinances and federal and
practicable sound abatement techniques state environmental statutes and regulations
to prevent tonal sounds and impulse regarding wastewater discharges.
sounds or, if such tonal and impulse F. Storage of vehicles. Storage of any
sounds cannot be prevented, to minimize unregistered automotive vehicle on the
the impact of such sounds in residential premises for more than 60 days shall not be
zones. Tonal sound is defined as a sound permitted.
wave usually perceived as a hum or which G. Landfill of docking and berthing areas. Landfill
because its instantaneous sound pressure of docking and berthing areas shall be
varies essentially as a simple sinusoidal governed by 38 M.R.S. § 471 through 478, and
function of time. Impulse sounds are permitted only if the landfill does not reduce
defined as sound events characterized by the amount of linear berthing areas or space, or
brief excursions of sound pressure, each berthing capacity. If approved, construction
with a duration of less than one second. shall be undertaken using methods approved
C. Vibration. Vibration inherently and recurrently by the Department of Public Works and shall be
generated shall be imperceptible without accomplished in accordance with the
instruments at lot boundaries. This shall not provisions of this Land Use Code and in a
apply to vibration resulting from activities manner so as to ensure that a stable and
aboard a vessel or from railroad vehicle impermeable wall of acceptable materials will
activities, or from activities on a pile supported completely contain the fill material and will not
pier. permit any fill material to leach into docking
D. Federal and state environmental regulations. areas or navigable waters.
All uses shall comply with federal and state H. Off-street parking. Off-street parking is
environmental statutes and regulations required as provided in Article 19.
regarding emissions into the air, except where I. Shoreland and Flood Plain Management
provisions of this Land Use Code are more regulations. Any lot or portion of a lot located
stringent. in a Shoreland Zone as identified on the City 10-26 | CITY OF PORTLAND LAND USE CODE WATERFRONT ZONES

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