As part of the Smoke Management Program provided for in ORS
468A.590, the Department shall
set forth the types and extent of open field burning, propane flaming, and
stack burning to be allowed each day according to the provisions established in
this section and this Division:
(1)
During the active burning season and on an as needed basis, the Department
shall announce the burning schedule over the burning radio network, or other
communication technology method as approved by the Department, and operated
specifically for this purpose or by other appropriate means. The schedule shall
specify the times, locations, amounts and other restrictions in effect for open
field burning, propane flaming, and stack burning. The Department shall notify
Oregon Emergency Management of the burning schedule for dissemination to
appropriate Willamette Valley agencies.
(2) Prohibition conditions:
(a) Prohibition conditions shall be in effect
at all times unless specifically determined and announced otherwise by the
Department;
(b) Under prohibition
conditions, no permits shall be issued and no open field burning shall be
conducted in any area except for individual burns specifically authorized by
the Department on a limited extent basis. Such limited burning may include
field-by-field burning, preparatory burning, or burning of test fires, except
that:
(A) No open field burning shall be
allowed:
(i) In any area subject to a
ventilation index of less than 10.0;
(ii) In any area upwind, or in the immediate
vicinity, of any area in which, based upon real-time monitoring, a violation of
federal or state air quality standards is projected to
occur.
(B) Only test-fire
burning may be allowed:
(i) In any area
subject to a ventilation index of between 10.0 and 15.0, inclusive, except for
experimental burning specifically authorized by the Department pursuant to OAR
603-077-0135;
(ii) When relative
humidity at the nearest reliable measuring station exceeds 50 percent under
forecast northerly winds or 65 percent under forecast southerly
winds.
(3) Marginal conditions:
(a) The Department shall announce that
marginal conditions are in effect and open field burning is allowed when, in
its best judgment and within the established limits of this Division, the
prevailing atmospheric dispersion and burning conditions are suitable for
satisfactory smoke dispersal with minimal impact on the public, provided that
the minimum conditions set forth in paragraphs (2)(b)(A) and (B) of this rule
are satisfied;
(b) Under marginal
conditions, permits may be issued and open field burning may be conducted in
accordance with the times, locations, amounts, and other restrictions set forth
by the Department and this Division.
(4) Hours of burning:
(a) Burning hours shall be limited to those
specifically authorized by the Department each day and may be changed at any
time when necessary to attain and maintain air quality;
(b) Burning hours may be reduced by the fire
chief or his deputy, and burning may be prohibited by the State Fire Marshal,
when necessary to prevent danger to life or property from fire, pursuant to ORS
478.960.
(5) Locations of burning:
(a) Locations of burning shall at all times
be limited to those areas specifically authorized by the Department; except for
areas where burning is restricted or prohibited, as specified in OAR
603-077-0119.
(6)
Amounts of burning:
(a) To provide for an
efficient and equitable distribution of burning, daily authorizations of
acreages shall be issued by the Department in terms of single or multiple fire
district quotas. The Department shall establish quotas for each fire district
and may adjust the quotas of any district when conditions in its judgment
warrant such action;
(b) Unless
otherwise specifically announced by the Department, a one quota limit shall be
considered in effect for each district authorized for burning;
(c) The Department may issue more restrictive
limitations on the amount, density or frequency of burning in any area or on
the basis of crop type, when conditions in its judgment warrant such
action.
(7) Limitations
on burning based on air quality:
(a) Should
smoke intrusions occur in the Eugene-Springfield area from the burning of
identified species, steep terrain, propane flaming, or stack burning, pursuant
to OAR
603-077-0113, that are in excess of the cumulative hours identified
below, the minimum allowable effective mixing height for any additional open
field burning for the remainder of the year shall be as follows:
Cumulative Hours in the - Minimum Effective
Eugene-Springfield Area - Mixing Height (feet)
0-14 hours - No minimum
15-19 hours - 4,000
20-14 hours - 4,500
25 and greater - 5,500
(b) The effective mixing height restrictions
in paragraph (a) of this subsection shall not apply to emergency burning or
experimental burning, pursuant to OAR
603-077-0135 or
603-077-0139.
(8)
Limitations on burning based on rainfall:
(a)
Open field burning and propane flaming shall be prohibited in any area for one
drying day (up to a maximum of four consecutive drying days) for each 0.10 inch
increment of rainfall received per day at the nearest reliable measuring
station;
(b) The Department may
waive the restrictions of subsection (a) of this section when dry fields are
available as a result of special field preparation or condition, irregular
rainfall patterns, or unusually high evaporative weather condition.
(9) Other discretionary provisions
and restrictions:
(a) The Department may
require special field preparations before burning, such as, but not limited to,
mechanical fluffing of residues, when conditions in its judgment warrant such
action;
(b) The Department may
designate specified periods following permit issuance within which time active
field ignition must be initiated and/or all flames must be actively
extinguished before said permit is automatically rendered invalid;
(c) The Department may designate additional
areas as priority areas when conditions in its judgment warrant such
action.