Washington Administrative Code
Title - Northwest Clean Air Agency
400 - STANDARDS
Sec2 466 - PORTLAND CEMENT PLANTS

Universal Citation: WA Admin Code 466

Current through Register Vol. 24-18, September 15, 2024

466.1 It shall be unlawful for the owner or operator of any portland cement plant to cause or allow to be discharged into the atmosphere from:

466.11 Any sources any emission which:
466.111 Contains particulate matter in excess of 0.60 pounds/ton (0.3kg/metric ton) of dry feed to the kiln.

466.112 Contains particulate matter in excess of 0.1 grains per dry cubic foot of exhaust gas.

466.113 Exhibits greater than 20% opacity for a period(s), aggregating more than 3 minutes in any hour.

466.12 Any source any emission which does not meet the provisions of Section 530 and 550. These sections will be deemed to have been violated if the suspended particulate ambient sample concentration exceeds 100 micrograms per cubic meter of air at any sampling station located off the plant site and the Control Officer, after investigation of pertinent data, including meteorological data, determines if there is reasonable probability that the particulate emissions from the source resulted in the 100 microgram/cubic meter concentration being exceeded.

466.2 The owner or operator of any portland cement plant shall:

466.21 Record and report the daily production rates, kiln feed rates, fuel type and rates and such other information as the Control Officer may reasonably request.

466.22 Install, calibrate, maintain and operate a transmissometer or other opacity detector as approved by the Control officer to continuously monitor and record the opacity of the gases to be discharged into the atmosphere from any kiln.
466.221 Report all hourly periods in which there are one or more 3 minute periods during which the opacity of the gas discharge to the atmosphere from any kiln exceeds 20%.

466.3 Methods and procedures provided for in Sections 180, 360, 365 and 366, except as provided for in this subsection, or determined equivalent by the Control Officer, shall be used to determine compliance.

466.31 Gas Analysis.
466.331 The minimum sampling time and minimum sampling volume for each sampling run, except when process variables or other facts justify otherwise to the satisfaction of the Control Officer, shall be 60 minutes and 30.0 dscf (0.85 m3) for the kiln.

466.332 Total kiln feed rate (except fuels) expressed in tons per hour on a dry basis, shall be determined during each testing period by suitable approved methods and shall be confirmed by a material balance over the production system.

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