10 CSR 10-6.045
Open Burning Requirements
PURPOSE: This rule sets forth the conditions and restrictions for
the open burning of refuse and combustible materials throughout
Missouri. The evidence supporting the need for this proposed
rulemaking, per section 536.016, RSMo, are the various citizen
petitions concerning open burning received in 2005 and meeting
minutes for 2005/2006 open burning workgroup meetings.
PUBLISHER’S NOTE: The secretary of state has determined that the
publication of the entire text of the material which is incorporated
by reference as a portion of this rule would be unduly cumbersome
or expensive. This material as incorporated by reference in this rule
shall be maintained by the agency at its headquarters and shall be
made available to the public for inspection and copying at no more
than the actual cost of reproduction. This note applies only to the
reference material. The entire text of the rule is printed here.
(1) Applicability. This rule applies to all open burning
throughout the state of Missouri.
(2) Definitions.
(A) Air curtain incinerator—A device that operates by
forcefully projecting a curtain of air across an open chamber
or open pit in which combustion occurs.
(B) Household waste—Garbage, trash, and other discarded
materials that are generated from residential activities in a
household.
(C) Open burning—The burning of materials where the
products of combustion are emitted into the open air without
passing through a chimney or stack.
(D) Salvage Operation—Any business, trade, industry, or
other activity conducted in whole or in part for the purpose of
salvaging or reclaiming any product or material.
(E) Trade waste—Waste materials from any business,
institution, or industry.
RESOURCES
(F) Untreated wood—Wood that has not been chemically
preserved, painted, stained, or composited. Untreated wood
does not include plywood, particleboard, chipboard, and wood
with other than minimal quantities of paint, coating, or finish.
(G) Vegetative waste—Tree trunks, tree limbs, tree trimmings,
vegetation, and yard waste.
(H) Wood processing facility—A facility that uses logs or
dimensional lumber to be cut and used in the manufacturing
process.
(I) Definitions of certain terms specified in this rule, other
than those defined in this rule section, may be found in 10 CSR
10-6.020.
(3) General Provisions. Open burning that causes or constitutes
a public health hazard, a hazard to vehicular or air traffic, is
composed of material listed in subsection (3)(A) of this rule,
or violates any other rule or statute, is not allowed unless
specified otherwise. A public health hazard is to be as
determined by the local fire department, police department,
health department, or other local authorities on a case-by-case
basis. The staff director reserves the right to prohibit or restrict
open burning where burning is considered detrimental to air
quality standards.
(A) The following materials must not be disposed of by open
burning:
1. Petroleum-based materials, including but not limited to,
tires, asphalt roofing material, carpet, and used oils;
2. Asbestos containing materials;
3. Trade waste, except untreated wood;
4. Construction or demolition waste, except untreated
wood;
5. Salvage operation waste;
6. Household waste on or from properties with five (5) or
more residential units, such as mobile home parks or multifamily dwellings;
7. Household waste originated from another’s property; or
8. Durable goods.
(B) The open burning of vegetative waste for the following
activities must comply with the conditions in subsection (3)(E)
of this rule:
1. Commercial land clearing operations when the burning
is located inside the city limits or less than two hundred (200)
yards from the nearest occupied structure; and
2. Commercial and noncommercial collection operations
where vegetative waste originates off-site. Collection operations
that burn more than eighty (80) cubic yards of vegetative waste
per week must use an Air Curtain Incinerator and—
A. Meet the conditions of subsections (3)(F) and (3)(G) of
this rule;
B. Submit a construction notification, record opacity test
results, and make records available for review as outlined in
section (4) of this rule; and
C. Measure visible emissions as outlined in section (5)
of this rule.
(C) Wood processing facilities producing more than eight
thousand (8,000) board feet per day or that are located less
than one (1) mile outside the city limits of an incorporated area
that open burn untreated wood waste must comply with the
conditions in subsection (3)(E) of this rule. Wood processing
facilities producing more than eight thousand (8,000) board
feet per day that wish to burn more than eighty (80) cubic
yards of untreated wood waste per week must use an Air
Curtain Incinerator and—
1. Meet the conditions of subsections (3)(F) and (3)(G) of
this rule;
2. Submit a construction notification, record opacity test
results, and make records available for review as outlined in
section (4) of this rule; and
3. Measure visible emissions as outlined in section (5) of
this rule.
(D) The open burning of untreated wood waste generated
from trade waste or construction and demolition waste must
comply with the conditions in subsection (3)(E) of this rule. Any
person who burns more than eighty (80) cubic yards of this
untreated wood waste per week at a single location must use
an Air Curtain Incinerator and—
1. Meet the conditions of subsections (3)(F) and (3)(G) of
this rule;
2. Submit a construction notification, record opacity test
results, and make records available for review as outlined in
section (4) of this rule; and
3. Measure visible emissions as outlined in section (5) of
this rule.
(E) Conditions for open burning of vegetative waste or
untreated wood from activities described in subsections (3)(B),
(3)(C), and (3)(D) of this rule:
1. Burning is to take place only between sunrise and
sunset;
2. Burning is to occur at least two hundred (200) yards
from the nearest structure not owned by the party conducting
the burning, unless an Air Curtain Incinerator is used and—
A. Waivers are obtained from the owner or occupant of
the structure; or
B. The local fire department provides approval in those
circumstances where the distance cannot be maintained;
3. Burning is to be supervised at all times;
4. The local fire control or other authority with jurisdiction
shall be notified of the burning activities prior to initiation;
5. An Air Curtain Incinerator shall be utilized in an ozone
non-attainment area from April 15 to September 15; and
6. Burning is not allowed during an ozone alert day in an
ozone non-attainment area or ozone maintenance area.
(F) Air curtain incinerator operation.
1. An air curtain incinerator operates by forcefully
projecting a curtain of air across an open chamber or open
pit in which combustion occurs. Incinerators of this type can
be constructed above or below ground and with or without
refractory walls and floor. (Air curtain incinerators are not to be
confused with conventional combustion devices with enclosed
fireboxes and controlled air technology such as mass burn,
modular, and fluidized bed combustors.)
2. Owners and operators may only burn the following in
their Air Curtain Incinerator:
A. One hundred percent (100%) wood waste;
B. One hundred percent (100%) clean lumber; and
C. One hundred percent (100%) mixture of only wood
waste, clean lumber, and/or yard waste.
3. Air curtain incinerator operation must take place at least
fifty (50) yards from the nearest occupied structure not owned
by the party that owns or operates the air curtain incinerator.
(G) Air curtain incinerators must meet the following emission
limitations:
1. Maintain opacity to less than or equal to ten percent
(10%) opacity (as determined by the average of three (3) one
(1)-hour blocks consisting of ten (10) six (6)-minute average
opacity values), except as described in paragraph (3)(G)2. of
this rule; and
2. Maintain opacity to less than or equal to thirty five
percent (35%) opacity (as determined by the average of three (3)
one (1)-hour blocks consisting of ten (10) six (6)-minute average
opacity values) during the startup period that is within the first
thirty (30) minutes of operation.
(H) The open burning of certain trade wastes, such as
explosive or hazardous material, is allowed only when it can
be shown that a situation exists where open burning is in the
best interest of the general public, or when it can be shown
that open burning is the safest and most feasible method of
disposal. Economic considerations are not to be the primary
determinant of feasibility. Any person intending to engage
in open burning of these trade wastes is to contact the
Department of Natural Resources and receive written approval
from the staff director. The person submitting the information
is to verify that the proposed open burning has been approved
by the fire control authority which has jurisdiction.
(I) The open burning of material associated with agricultural
or forestry operations related to the growing or harvesting of
crops is allowed with the following exception. In an ozone
non-attainment area, if open burning for pest or weed control
or crop production on existing cropland between April 15
and September 15, the person must notify the staff director in
writing at least forty-eight (48) hours prior to commencement
of burning. The department reserves the right to delay the
burning on days when the ambient ozone level is forecasted
to be high.
(4) Reporting and Record Keeping. Owners and operators of Air
Curtain Incinerators must—
(A) Prior to commencing construction of a stationary air
curtain incinerator, submit a notification to the staff director
with the following information:
1. Notification of the intent to construct and operate an air
curtain incinerator;
2. The planned initial startup date; and
3. Types of materials that will be burned in the air curtain
incinerator;
(B) Keep the notification required in subsection (4)(A) of this
rule, and records of results of all initial and annual opacity tests
required in section (5) of this rule onsite in either paper copy
or electronic format, unless the staff director approves another
format, for at least five (5) years;
(C) Make all records available for submittal to the staff
director or for an inspector’s onsite review; and
(D) Submit the results of the initial opacity test required in
section (5) of this rule no later than sixty (60) days following
the initial test. Owners and operators must submit the results
of the annual opacity test required in section (5) of this rule
within sixty (60) days of conducting the test. Submit annual
opacity test results within twelve (12) months following the
previous report. Copies of the initial and annual reports are to
remain onsite for a period of five (5) years. The opacity testing
must consist of a minimum of one (1) hour of opacity values,
consisting of ten (10) six (6)-minute average opacity values.
Paper and electronic submittals are acceptable.
(5) Test Methods. Visible emissions from Air Curtain Incinerators
shall be evaluated within sixty (60) days after the air curtain
incinerator reaches the charge rate at which it will operate,
but no later than one hundred eighty (180) days after its initial
startup, and annually thereafter using Method 9 of Appendix
A-4 to 40 CFR 60 as specified in 10 CSR 10-6.030(22).
AUTHORITY: section 643.050, RSMo 2016.* Original rule filed June
7, 2007, effective Jan. 30, 2008. Amended: Filed Dec. 29, 2008,
effective Sept. 30, 2009. Amended: Filed June 21, 2018, effective
March 30, 2019.
*Original authority: 643.050, RSMo 1965, amended 1972, 1992, 1993, 1995, 2011.