Washington Administrative Code
Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508)
Chapter 173-400 - General regulations for air pollution sources
Section 173-400-103 - Emission estimates
Universal Citation: WA Admin Code 173-400-103
Current through Register Vol. 24-06, March 15, 2024
(1) This section applies to a source subject to WAC 173-400-100 located in a county without a local air pollution control authority.
(2) Procedure for estimating emissions from a source.
(a) An emissions inventory report may
include:
(i) An estimate of actual emissions
taking into account equipment;
(ii)
Operating conditions;
(iii) Air
pollution control measures;
(iv) A
flowchart of plant processes;
(v)
Operational parameters; and
(vi)
Specifications of air pollution control equipment.
(b) An owner or operator must base the
emissions estimate on actual test data or, in the absence of test data, on
procedures acceptable to ecology.
(c) Emission data submitted to ecology must
be verifiable using currently accepted engineering criteria. Sources may use
the following procedures to estimate emissions from individual sources or
emissions units:
(i) Source-specific testing
data;
(ii) Mass balance
calculations;
(iii) A published,
verifiable emission factor applicable to the source;
(iv) Other engineering calculations;
or
(v) Other procedures to estimate
emissions acceptable to ecology.
(3) Owner or operator review.
(a) By August 1st of each year, ecology must
provide the owner or operator of the source an opportunity to review emission
estimates prepared by ecology.
(b)
An owner or operator may submit additional information and justification for
not using the procedures in subsection (2) of this subsection.
(i) The owner or operator may propose a
source-specific appropriate method.
(ii) Ecology must evaluate the information
provided to determine whether the owner or operator based it on currently
accepted engineering criteria.
(iii) If none of these methods are available
or applicable to the source, ecology must establish and approve an appropriate
method on a case-by-case basis.
(c) When estimating emissions, ecology must
consider updates and revisions made to a source's operations during a calendar
year to apply to emissions occurring during the entire calendar year.
(d) Emissions inventory review process.
(i) Ecology must:
(A) Notify each source of their draft
emissions inventory by August 1st of each year in connection with notice on the
draft tier placement in WAC 173-455-039;
(B) Distribute the notice by electronic means
or by means of the United States postal service if ecology does not have an
electronic means for the source or the source requests postal service
notification.
(ii)
Comment deadlines. An owner or operator must provide comments to ecology by:
(A) September 30th to change a tier placement
or an emissions inventory determined by WAC 173-455-039 for an upcoming year;
or
(B) October 1st or later to
update a future emissions inventory.
(iii) Ecology must evaluate the request and
make a final determination by:
(A) January
1st if a request was sent by September 30th of that year; or
(B) Within ninety days of receiving a request
submitted under (ii)(B) of this subsection.
Statutory Authority: Chapter 70.94 RCW. 95-07-126 (Order 93-40), § 173-400-103, filed 3/22/95, effective 4/22/95.
Disclaimer: These regulations may not be the most recent version. Washington may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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