| (A) a reasonable effort at recovery will be made in
the event a sealed source is lost or lodged downhole;
(B) a person shall not attempt to recover a sealed
source in a manner that, in the licensee's opinion, could result in
a source rupture;
(C) in the event the environment, any equipment, or
personnel are contaminated with radioactive material, decontamination
to levels specified in §289.202(f), (n), and (eee) of this title
shall be performed; and
(D) the requirements of subsection (dd)(4) of this
section shall be met in the event a decision is made to abandon the
sealed source downhole.
(2) No licensee shall perform tracer study operations
with a substance tagged with radioactive material in any well or wellbore
unless, prior to commencement of the operation, the licensee has a
written agreement with the well operator, well owner, drilling contractor
or land owner, and the service company to which the licensee's equipment
is connected, as applicable, that specifies who will be responsible
for ensuring the following requirements are met:
(A) in the event the service company's personnel or
equipment are contaminated with radioactive material, they shall be
decontaminated in accordance with §289.202(n) or (ddd) of this
title before release from the job site or release for unrestricted
use, respectively;
(B) in the event the well head or job site is contaminated
with radioactive material, it shall be decontaminated in accordance
with §289.202(ddd) of this title; and
(C) in the event radioactive material is to be reversed
from the well or the well screens out, the licensee shall have established
procedures and equipment or facilities to do the following:
(i) reverse material into a preconstructed steel or
lined pit that is specifically established in the event of a screen
out; or
(ii) reverse material into suitable transport container(s)
in the event of a screen out.
(3) The licensee shall maintain, in accordance with
subsection (ee)(5) of this section, a copy of the written agreement
specified in paragraph (1) or (2) of this subsection.
(f) Limits on levels of radiation. Sources of radiation
shall be used, stored, and transported in such a manner that the requirements
of §289.202 of this title, §289.231 of this title, and §289.257
of this title, as applicable, are met.
(g) Storage precautions.
(1) Each source of radiation, except accelerators,
shall be provided with a storage and/or transport container. Each
container shall have a lock (or tamper seal for calibration sources)
to prevent unauthorized removal of, or exposure to, the source of
radiation.
(2) Each area or room in which sources of radiation
are stored shall be posted in accordance with §289.202(aa)(5)
or §289.231(x) of this title, as applicable.
(3) Sources of radiation, except accelerators, shall
be stored downhole or in a bunker in order to minimize the danger
from explosion and/or fire.
(4) Sources of radiation may not be stored in residential
locations. This section does not apply to storage of radioactive material
in a vehicle in transit for use at temporary job sites, if the licensee
complies with subsection (bb)(2) of this section.
(5) Sources of radiation in storage shall be secured
to prevent tampering, or removal by unauthorized individuals.
(h) Transport precautions. Transport containers shall
be locked and physically secured to the transporting vehicle to prevent
shifting during transport, accidental loss, tampering, or unauthorized
removal.
(i) Radiation survey instruments.
(1) The licensee or registrant shall maintain a sufficient
number of calibrated and operable radiation survey instruments at
each location where sources of radiation are stored or used to make
physical radiation surveys as required by this section and by §289.202(p)
or §289.231(s), of this title, as applicable. Instrumentation
shall be capable of measuring 0.1 milliroentgen per hour (mR/hr) (1
microsievert per hour (µSv/hr)) through at least 50 mR/hr (500 µSv/hr).
(Instrumentation capable of measuring 0.1 mR/hr (1 µSv/hr) through
50 mR/hr (500 µSv/hr) may not be sufficient to determine compliance
with DOT requirements.)
(2) A licensee using tracer material shall have available
at each additional authorized use/storage location and temporary job
site additional calibrated and operable radiation survey instruments
sensitive enough to detect the radioactive surface contamination limits
specified in §289.202(eee) of this title.
(3) Each radiation survey instrument capable of detecting
beta and gamma radiation shall be calibrated:
(A) by a person specifically licensed or registered
by the agency, another agreement state or the United States Nuclear
Regulatory Commission (NRC) to perform such service;
(B) at intervals not to exceed six months and after
each survey instrument repair;
(C) for the types of radiation used and at energies
appropriate for use; and
(D) at an accuracy within ±20% of the true radiation
level at each calibration point.
(4) The licensee or registrant shall maintain calibration
records in accordance with subsection (ee)(5) of this section.
(j) Leak testing of sealed sources.
(1) Testing and record keeping. Sealed sources shall
be tested for leakage and contamination in accordance with this section
and §289.201(g) of this title. The licensee shall maintain records
of leak tests in accordance with subsection (ee)(5) of this section.
(2) Each energy compensation source that is not exempt
from testing in accordance with §289.201(g)(2) of this title
shall be tested at intervals not to exceed three years. In the absence
of a certificate from a transferor that a test has been made within
the three years before the transfer, the energy compensation source
may not be used until tested in accordance with §289.201(g) of
this title.
(3) If a sealed source is found to be leaking in accordance
with §289.201(g) of this title, the licensee shall check the
equipment associated with the leaking source for radioactive contamination
and, if contaminated, have it decontaminated or disposed of by persons
specifically authorized by the agency, the NRC, or an agreement state,
to perform such services.
(k) Quarterly inventory. Each licensee or registrant
shall conduct a physical inventory to account for all sources of radiation
received or possessed at intervals not to exceed three months. The
licensee or registrant shall make and maintain records of inventories
in accordance with subsection (ee)(5) of this section and shall include
the following:
(1) the quantities and kinds of sources of radiation;
(2) the location where sources of radiation are assigned;
(3) a unique identification of each source of radiation;
(4) the date of the inventory; and
(5) the name of the individual conducting the inventory.
(l) Utilization records. Utilization records shall
be maintained by each licensee or registrant in accordance with subsection
(ee)(5) of this section and shall include the following information
for each source of radiation:
(1) identification of each source of radiation to include:
(A) the make and model number and/or serial number
(or if absent, a description) of each sealed source used; or
(B) the radionuclide and activity of tracer materials
and radioactive markers used at a particular well site and the disposition
of any unused tracer materials.
(2) the identity of the logging supervisor or individual
who is responsible for receiving sources of radiation, to whom assigned;
and
(3) the locations where used and dates of use.
(m) Design and performance criteria for sealed sources
used in well logging operations.
(1) Each sealed source used in well logging applications
shall meet the following minimum criteria.
(A) The sealed source is of doubly encapsulated construction.
(B) The sealed source contains radioactive material
with a chemical/physical form as insoluble and nondispersible as practicable.
(C) The sealed source meets one of the following requirements:
(i) for a sealed source manufactured on or before July
14, 1989, the requirements from the United States of America Standards
Institute (USASI) N5.10-1968, "Classification of Sealed Radioactive
Sources," or the requirements in clause (ii) or (iii) of this subparagraph;
Cont'd... |
