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
PERMITTING OF MAJOR STATIONARY SOURCES AND MAJOR MODIFICATIONS TO MAJOR STATIONARY SOURCES
Section 173-400-930 - Emergency engines
Universal Citation: WA Admin Code 173-400-930
Current through Register Vol. 25-06, March 15, 2025
(1) Applicability.
(a) This section
applies statewide except where a permitting authority has not adopted this
section in rule.
(b) This section
applies to diesel-fueled compression ignition emergency engines with a
cumulative BHP rating greater than 500 BHP and equal to or less than 2000
BHP.
(c) This section is not
applicable to emergency engines proposed to be installed as part of a new major
stationary source, as defined in WAC 173-400-710 and 173-400-810, or major
modification, as defined in WAC 173-400-710 and 173-400-810.
(d) In lieu of filing a notice of
construction application under WAC 173-400-110, the owner or operator may
comply with the requirements of this section for emergency engines.
(e) Compliance with this section satisfies
the requirement for new source review of emergency engines under RCW
70A.15.2210 and chapter 173-460 WAC.
(f) An applicant may choose to submit a
notice of construction application in accordance with WAC 173-400-110 for a
site specific review of criteria and toxic air pollutants in lieu of using this
section's provisions.
(g) If an
applicant cannot meet the requirements of this section, then they must file a
notice of construction application.
(2) Operating requirements for emergency engines. Emergency engines using this section must:
(a) Meet EPA emission standards applicable to
all new nonroad compression-ignition engines in 40 C.F.R. 89.112 Table 1 and 40 C.F.R. 1039.102 Tables 6 and 7 (in effect on the date in WAC 173-400-025), as
applicable for the year that the emergency engine is put in
operation.
(b) Be fueled by ultra
low sulfur diesel or ultra low sulfur bio-diesel, with a sulfur content of 15
ppm or 0.0015% sulfur by weight or less.
(c) Operate a maximum of 50 hours per year
for maintenance and testing or other nonemergency use.
(3) Definitions.
(a)
Emergency engine means a new
diesel-fueled stationary compression ignition engine. The engine must meet all
the criteria specified below. The engine must be:
(i) Installed for the primary purpose of
providing electrical power or mechanical work during an emergency use and is
not the source of primary power at the facility; and
(ii) Operated to provide electrical power or
mechanical work during an emergency use.
(b)
Emergency use means
providing electrical power or mechanical work during any of the following
events or conditions:
(i) The failure or loss
of all or part of normal power service to the facility beyond the control of
the facility; or
(ii) The failure or
loss of all or part of a facility's internal power distribution system.
Examples of emergency operation include the pumping of water or sewage and the powering of lights.
(c)
Maintenance and testing
means operating an emergency engine to:
(i)
Evaluate the ability of the engine or its supported equipment to perform during
an emergency; or
(ii) Train
personnel on emergency activities; or
(iii) Test an engine that has experienced a
breakdown, or failure, or undergone a preventative overhaul during maintenance;
or
(iv) Exercise the engine if such
operation is recommended by the engine or generator
manufacturer.
Statutory Authority: Chapter 70.94 RCW. 12-24-027 (Order 11-10), § 173-400-930, filed 11/28/12, effective 12/29/12; 11-06-060 (Order 09-01), § 173-400-930, filed 3/1/11, effective 4/1/11.
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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