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Table 1 to Subpart HHH of Part 62—Emission Limits for Small Rural, Small, Medium, and Large HMIWI

Emission Limits for Small Rural, Small, Medium, and Large HMIWI

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Displayed edition2026-04-27
Last updated2026-04-27

Table 1 to Subpart HHH of Part 62—Emission Limits for Small Rural, Small, Medium, and Large HMIWI

For the air pollutantYou must meet this emissions limitWith these units

(7 percent oxygen, dry basis)
Using this

averaging time a
And determining compliance using this method b
HMIWI size
Small ruralSmallMediumLarge
Particulate matter87 (0.038)66 (0.029)46 (0.020) c

34 (0.015) d
25 (0.011)Milligrams per dry standard cubic meter (grains per dry standard cubic foot)3-run average (1-hour minimum sample time per run)EPA Reference Method 5 of appendix A-3 of part 60, or EPA Reference Method M 26A or 29 of appendix A-8 of part 60
Carbon monoxide20205.511Parts per million by volume3-run average (1-hour minimum sample time per run)EPA Reference Method 10 or 10B of appendix A-4 of part 60
Dioxins/furans240 (100) or 5.1 (2.2)16 (7.0) or 0.013 (0.0057)0.85 (0.37) or 0.020 (0.0087)9.3 (4.1) or 0.054 (0.024)Nanograms per dry standard cubic meter total dioxins/furans (grains per billion dry standard cubic feet) or nanograms per dry standard cubic meter TEQ (grains per billion dry standard cubic feet)3-run average (4-hour minimum sample time per run)EPA Reference Method 23 of appendix A-7 of part 60
Hydrogen chloride81044 c

15 d
7.76.6Parts per million by volume3-run average (1-hour minimum sample time per run)EPA Reference Method 26 or 26A of appendix A-8 of part 60
Sulfur dioxide554.24.29.0Parts per million by volume3-run average (1-hour minimum sample time per run)EPA Reference Method 6 or 6C of appendix A-4 of part 60
Nitrogen oxides130190190140Parts per million by volume3-run average (1-hour minimum sample time per run)EPA Reference Method 7 or 7E of appendix A-4 of part 60
Lead0.50 (0.22)0.31 (0.14)0.018 (0.0079)0.036 (0.016)Milligrams per dry standard cubic meter (grains per thousand dry standard cubic feet)3-run average (1-hour minimum sample time per run)EPA Reference Method 29 of appendix A-8 of part 60
Cadmium0.11 (0.048)0.017 (0.0074)0.013 (0.0057)0.0092 (0.0040)Milligrams per dry standard cubic meter (grains per thousand dry standard cubic feet)3-run average (1-hour minimum sample time per run)EPA Reference Method 29 of appendix A-8 of part 60
Mercury0.051 (0.0022)0.014 (0.0061)0.025 (0.011)0.018 (0.0079)Milligrams per dry standard cubic meter (grains per thousand dry standard cubic feet)3-run average (1-hour minimum sample time per run)EPA Reference Method 29 of appendix A-8 of part 60
a Except as allowed under §§ 62.14452(o)-(q) for HMIWI equipped with CEMS or continuous automated sampling systems.
b Does not include CEMS, continuous automated sampling systems, and approved alternative non-EPA test methods allowed under § 62.14452(d) and (m).
c Limits for those HMIWI for which construction or modification was commenced according to § 62.14400(a)(2)(i).
d Limits for those HMIWI for which construction or modification was commenced according to § 62.14400(a)(2)(ii).

[78 FR 28075, May 13, 2013]