Grain Loading Standards

(1) No person may cause, suffer, allow, or permit particulate matter emission from any fuel burning equipment in excess of:

(a) For sources installed, constructed, or modified before June 1, 1970:

(A) 0.2 grains per dry standard cubic foot through March 31, 2015;

(B) 0.20 grains per dry standard cubic foot from April 1, 2015 through March 31, 2019.

(b) For sources installed, constructed, or modified on or after June 1, 1970:

(A) 0.1 grains per dry standard cubic foot through March 31, 2019 if located more than 5 miles of a PM10/PM2.5 sustainment area, nonattainment area, reattainment area, or maintenance area;

(B) 0.1 grains per dry standard cubic foot through March 31, 2015 if located within 5 miles of a PM10/PM2.5 sustainment area, nonattainment area, reattainment area, or maintenance area;

(C) 0.10 grains per dry standard cubic foot after March 31, 2015 if located within 5 miles of a PM10/PM2.5 sustainment area, nonattainment area, reattainment area, or maintenance area;

(c) For sources installed, constructed or modified after March 31, 2014, 0.10 grains per dry standard cubic foot.

(d) For all sources, 0.10 grains per dry standard cubic foot after March 31, 2019.

(e) The owner or operator of an source installed, constructed or modified before April 1, 2014 who is unable to comply with any of the compliance dates specified in paragraphs (a)(B), (b)(C), and (d) above may request that DEQ grant an extension allowing the source up to one additional year to comply with the standard, provided that the owner or operator submits an engineering report signed by a registered professional engineer that demonstrates that the source cannot comply with the standard without making significant changes to the equipment or control equipment or adding control equipment. The request for an extension must be submitted no later than 90 days prior to the compliance dates.