The purpose of this chapter is to establish safeguards to protect
human health, safety and welfare, as well as property, by establishing
reasonable regulations governing the possession and use of explosive
material to ensure that the possession and use of explosive materials
do not result in physical injury or property damage.
The following words and terms, when used in this chapter, shall
have the following meanings, unless the context clearly indicates
otherwise:
BLASTER
A person who holds a valid permit to perform blasting operations.
BLASTING
The fracture of any heavy mass by detonation of explosive
materials.
BLASTING AGENT
Any material or mixture consisting of a fuel and oxidizer,
intended for blasting, not otherwise classified as explosive, provided
that the finished product, as mixed and packaged for use or shipment,
cannot be detonated by means of a No. 8 test blasting cap when unconfined.
BLASTING MAT
A mat of woven steel wire, tires or other suitable material
or construction to cover blast holes for the purpose of preventing
fly rock missiles.
BLAST ZONE
The area surrounding a blast site subject to the influence
of flying debris generated by the detonation of an explosive charge.
BURDEN
That dimension of a medium to be blasted measured from the
borehole to the face at right angles to the spacing. It means also
the total amount of material to be blasted by a given hole, usually
measured in cubic yards or in tons.
DETONATOR
Any device containing a detonating charge. The term includes,
but is not limited to, electric blasting caps of instantaneous and
delay types, blasting caps for use with safety fuses, detonating-cord
delay connectors and nonelectric instantaneous or delay blasting caps.
EXPLOSIVE
A.
Any chemical compound or mixture that is commonly used or intended
for the purpose of producing an explosion that contains any oxidizing
and combustible materials or other ingredients, in such proportions,
quantities or packing that an ignition by fire, by friction, by concussion
or by detonation of any part of the compound or mixture may cause
such a sudden generation of highly heated gases that the resultant
gaseous pressure is capable of producing destructive effects on contiguous
objects.
B.
The term "explosive" includes, but is not limited to:
(1)
A commercial explosive, propellant or nitrocarbonitrate.
(2)
A high explosive or a low explosive.
(3)
An explosive material, blasting agent, water gel or detonator.
C.
The term "explosive," except as specifically stated herein,
does not include:
(1)
Small arms ammunition, including smokeless or black powder,
when possessed for noncommercial purposes in quantities of five pounds
or less.
(2)
An explosive in a form prescribed by the United States Pharmacopeia.
(3)
Fireworks regulated under state law.
FIREWORKS
Any combustible or explosive composition or any substance
or combination of substances or articles prepared for the purpose
of producing a visible or audible effect by combustion, explosion,
deflagration or detonation.
FLY ROCK
Rock propelled from the blast area by the forces of an explosion.
MISFIRE
An explosive material charge that fails to detonate after
an attempt at initiation.
PEAK PARTICLE VELOCITY
The peak particle velocity recorded on any one of the three
mutually perpendicular components of blasting vibrations in the vertical
and horizontal directions.
PERMIT
Written authorization issued by the Village or other appropriate
governmental agency to manufacture, sell, possess, store or use explosives.
SEISMOGRAPH
An instrument which records ground vibration by measuring
and recording particle velocity, displacement or acceleration in three
mutually perpendicular directions.
STRAY CURRENT
A flow of electricity outside the conductor which normally
carries it.
VIBRATION
The energy from a blast that manifests itself in earthborne
vibrations which are transmitted through the earth away from the immediate
blast area.
Blasting may be conducted when authorized by permit Monday through
Friday between the hours of 9:00 a.m. to 5:00 p.m. Blasting is prohibited
Saturdays, Sundays and legal holidays.
The following additional requirements and restrictions contained
in this chapter are enacted pursuant to the authority granted by Labor
Law § 464-a:
A. Notice required. Whenever a blasting permit shall be issued under
the provisions of the Village Code, written notice shall be given
by the contractor to the Village of Dobbs Ferry Police Department
and property owners at their respective addresses as shown on the
latest assessment roll of the Village of Dobbs Ferry as to all property
owners and owners of easements within a radius of 1,500 feet from
the location of each blast. This distance may be increased by the
Building Inspector if he determines that a greater area may be substantially
affected by the proposed blasting. Said notice shall state the date
on which blasting is proposed to be commenced and the estimated date
when blasting will be completed. Said notice shall be mailed by the
contractor by certified mail, return receipt requested, at least 14
calendar days before the commencement of blasting, and signs shall
be placed stating the date and approximate time of each proposed blast.
Signs shall be placed at the nearest streets and/or intersections
providing access to all properties within which the blast is to occur.
Signs shall be posted at least three days before commencement of blasting.
An affidavit of mailing of the notices and of the posting of the signs
indicating the name, address and tax designation of each property
and easement owner notified shall be filed with the Building Inspector
before commencement of blasting. Failure to furnish evidence of such
shall be grounds for revocation of a blasting permit by the Building
Inspector.
B. Recordkeeping.
(1) It shall be the responsibility of any person, firm or organization
which engages in blasting to maintain verified records of the place,
date, time, number of holes, kind of blasting caps and delay intervals,
name of person in charge of loading and firing and the blasting permit
number, signature of blaster making the report and kind and amount
of the charge set for each blast and also monitor and maintain a permanent
record of all blasts. Such person, firm or corporation shall, upon
demand, provide to the Building Inspector of the Village of Dobbs
Ferry all such records. A record shall be kept of every blast showing
the amount of total powder and number of holes, and all records shall
be maintained at least until the end of the next calendar year in
which the record is made. At least one copy of the records required
by this section shall be maintained at the blasting site at all times.
(2) The information required to be submitted to the Building Inspector
of the Village of Dobbs Ferry shall clearly indicate the minimum or
maximum permitted values for the criteria indicated herein; including
particle velocity, overpressure, frequency, decibels, duration of
motion, etc. In addition, the values resulting from each blast shall
be indicated alongside so that deviations may be readily ascertainable.
C. Employment of licensed blaster required. No person, firm or corporation
shall be engaged in blasting in the Village of Dobbs Ferry unless
they have in their continuous employ a blaster who is a holder of
a current blaster's license issued by the State of New York pursuant
to § 458 of the Labor Law and maintained continuously in
force. A photocopy or clear reproduction of the blaster's license
in force shall be kept continuously on file with the Building Department.
D. Seismograph and air pressure records. It shall be the responsibility
of any person, firm or organization which engages in blasting to maintain
verified records of the place, date, time, number of holes, kind of
blasting caps and delay intervals, name of person in responsible charge
of loading and firing and the blasting permit number, signature of
blaster making the report and kind and amount of the charge set for
each blast and also to monitor and maintain a permanent record of
all blasts. Seismograph and air pressure readings of blasts shall
be taken by a qualified person frequently employed in the business
of seismograph readings and competent to qualify as an expert witness
to the results. The record data shall include identification of instrument
used, name of observer, name of interpreter, distance and direction
of recording station from area of detonation, type of ground at recording
station or location in structure, maximum amplitudes for all components,
as well as resultant for all recorded frequencies of vibrations, duration
of motion in excess of 0.001 inch, frequency of ground motion in cycles
per second, maximum energy ratio or particle velocity and a copy of
photographic records of seismograph readings.
E. Ground blast and air standards. Peak particle velocity and overpressure
produced by any blast at a distance measured by the distance from
the blast to the closest structure or building not owned or used by
the entity conducting the blast shall not exceed 0.75 inch per second
for frequencies less than 40 hertz (Hz) or 2.0 inches per second for
frequencies of 40 hertz (Hz) or more. In addition, air pressure emanating
from such blast shall not exceed 131 decibels (dB) for high-pass filter
of 0.1 hertz (Hz), or 128 decibels (dB) for a high-pass filter of
two hertz (Hz), or 125 decibels (dB) for a high-pass filter of six
hertz (Hz).
F. Special storage requirements. Persons issued permits pursuant to §
125-5 of this chapter shall have an amount of explosives [as defined in Subdivision 1 of § 451 of the Labor Law and 12 NYCRR 39.2 (k)] on a blasting site approximately sufficient for only one day of blasting operations. Any unused explosives stored on the blasting site from one day to another shall be kept in magazines constructed, maintained and located on the blasting site in accordance with applicable state rules and regulations (12 NYCRR 39.8 and 39.9), and each and every magazine containing stored explosives shall be covered with a blasting mat constructed in accordance with 12 NYCRR 23-11.4(f), and each such mat shall weigh a minimum of 5,000 pounds. In the event that any such unused explosives are stored as aforesaid, the permit holder shall notify the Police Department of such storage before 6:00 p.m. on each day of any such storage. No explosives shall be stored on a blasting site on Saturdays, Sundays or holidays observed by the Village.
G. Flagging and posting. At least three minutes before firing a blast,
the person undertaking such blasting operation shall give warning
thereof by causing a competent person(s) carrying a red flag to be
stationed at a reasonable distance from the blast on all sides of
the blast on any path, lane, street, road or highway or other avenue
of approach capable of use by the public. In all cases, signs at least
36 inches by 36 inches, bearing the words "danger, blasting operation
underway - no radio transmission" or similar language printed in red,
shall be posted on all sides of the blast at reasonable distance from
the blast. At least four such signs shall be so posted. Such posting
shall occur at least by 8:00 a.m. on the day of the blast, and such
signs shall be removed after the blasting operations are complete.
H. Supervision of blasting. The Building Inspector and/or a duly authorized
representative has the authority to supervise a blasting operation
when such supervision is, in his discretion, deemed necessary and
to inspect the storage, handling and size of the charges intended
to be detonated. The Building Inspector or the duly authorized representative
shall also have the authority to inspect blasting sites to ensure
that the provisions of all applicable laws of the State of New York,
Rules and Regulations of the State of New York and local laws are
being complied with. Any cost incurred by the Village of Dobbs Ferry
in conjunction with the supervising of said blasting shall be at the
cost of the applicant.
I. Preblast survey. It will be the responsibility of the applicant to
provide the Village of Dobbs Ferry with an affidavit listing and inspecting
all properties and easements within a radius of 600 feet from the
location of each blast. These preblast surveys must be available to
any affected property owner or Village of Dobbs Ferry official for
a period of not less than three years from when the permit expires.
Preblast surveys shall include but not be limited to both written
and photographed information. At the discretion of the Building Inspector,
the area of the preblast survey may be adjusted to include additional
properties and/or easements. Preblast surveys must not be over 12
months old at time of application.
Nothing in this chapter shall be construed to permit the manufacture,
possession, storage and use of explosives and blasting agents in contravention
of the duly adopted Zoning Ordinance of the Village of Dobbs Ferry or any amendments thereto.