Mich. Admin. Code R. 336.1119 - Definitions; S

Rule 119. As used in these rules:

(a) "Schedule of compliance" means, for purposes of R 336.1201 to R 336.1218, all of the following:

(i) For a source not in compliance with all applicable requirements at the time of issuance of a renewable operating permit, a schedule of remedial measures, including an enforceable sequence of actions or operations that specifies milestones, leading to compliance with an applicable requirement, and a schedule for submission of certified progress reports, at least every 6 months. The schedule shall resemble, and be at least as stringent as, a schedule contained in a judicial consent decree or administrative order to which the source is subject. A schedule shall be supplemental to, and shall not sanction noncompliance with, the applicable requirement on which it is based.

(ii) For a source in compliance with all applicable requirements at the time of issuance of a renewable operating permit, a statement that the source will continue to comply with the requirements.

(iii) With respect to any applicable requirement that has a future effective compliance date that is after the date of issuance and before the date of expiration of the renewable operating permit, the schedule of compliance shall contain a statement that the source will meet the requirement on a timely basis, unless the underlying applicable requirement requires a more detailed schedule.

(b) "Secondary emissions" means emissions which occur as a result of the construction or operation of a stationary source, but which do not come from the stationary source itself. Secondary emissions include only emissions that are specific, well-defined, quantifiable, and impact the same general area as the stationary source which causes the secondary emissions. Secondary emissions also include emissions from any off-site support facility which would not otherwise be constructed or increase its emissions except as a result of the construction or operation of the stationary source. Examples of secondary emissions include the following:

(i) Emissions from ships or trains coming to or going from a stationary source.

(ii) Emissions from any off-site support facility that would not otherwise be constructed or increase its emissions except as a result of the construction or operation of the stationary source.

(c) "Secondary risk screening level" means the concentration of a possible, probable, or known human carcinogen in ambient air which has been calculated, for regulatory purposes, according to the risk assessment procedures in R 336.1229(1), to produce an estimated upper-bound lifetime cancer risk of 1 in 100,000.

(d) "Shutdown" means the cessation of operation of a source for any purpose.

(e) "Significant" means a rate of emissions for the following air contaminants which would equal or exceed any of the following:

(i) Carbon monoxide - 100 tons per year.

(ii) Oxides of nitrogen - 40 tons per year.

(iii) Sulfur dioxide - 40 tons per year.

(iv) Particulate matter - 25 tons per year.

(v) PM-10 - 15 tons per year.

(vi) PM 2.5 - 10 tons per year, 40 tons per year of sulfur dioxide, or 40 tons per year of oxides of nitrogen.

(vii) Volatile organic compounds - 40 tons per year.

(viii) Lead - 0.6 tons per year.

(ix) Fluorides - 3 tons per year.

(x) Sulfuric acid mist - 7 tons per year.

(xi) Hydrogen sulfide - 10 tons per year.

(xii) Total reduced sulfur, including hydrogen sulfide - 10 tons per year.

(xiii) Reduced sulfur compounds, including hydrogen sulfide - 10 tons per year.

(xiv) Municipal waste combustor organics, measured as total tetra- through octa-chlorinated dibenzo-p-dioxins and dibenzofurans - 3.2x10^-6 megagrams per year or 3.2x10^-6 tons per year.

(xv) Municipal waste combustor metals, measured as particulate matter - 14 megagrams per year or 15 tons per year.

(xvi) Municipal waste combustor acid gases, measured as sulfur dioxide and hydrogen chloride - 36 megagrams per year or 40 tons per year.

(xvii) Municipal solid waste landfill emissions, measured as nonmethane organic compounds - 45 megagrams per year or 50 tons per year.

(f) "Smoke" means small gas and airborne particles consisting essentially of carbonaceous material in sufficient numbers to be observable.

(g) "Sour condensate" means a condensate that emits sour gas at atmospheric pressure.

(h) "Sour crude" means a crude oil that emits sour gas at atmospheric pressure.

(i) "Sour gas" means any gas containing more than 1 grain of hydrogen sulfide or more than 10 grains of total sulfur per 100 standard cubic feet.

(j) "Source sample" means any raw material, fuel, product, by-product, waste material, exhaust gas, air contaminant, flora, soil, or other such material existing as a gas, liquid, or solid, which is captured, retained, or collected from a stationary source.

(k) "Specific plate collection area" means the ratio of the total collection area to the total gas volume flow rate in square feet per 1,000 actual cubic feet per minute.

(l) "Stack" or "chimney" means a flue, conduit, or duct arranged to conduct a gas stream to the outer air.

(m) "Standard conditions" means a gas temperature of 70 degrees Fahrenheit and a gas pressure of 29.92 inches of mercury absolute.

(n) "Standpipe assembly," with respect to coke ovens, means the riser, standpipe lid, and the gooseneck.

(o) "Standpipe assembly emission point," with respect to a coke oven battery equipped with a single collector main or a double collector main, means the flexible connection between the battery top and the base of the riser, the seating surface of the standpipe lid, and the second flexible connection wherever located, or another agreed upon connection that is located between the collector main and the gooseneck. With respect to a battery equipped with a charging main and a gas-offtake main in tandem, "standpipe assembly emission point" means the upper flange, the lower flange, the top lid, the bottom lid, the upper sand seal, the middle sand seal, and the lower base sand seal. With respect to a battery equipped with a jumper pipe ministandpipe, "standpipe assembly emission point" means the flexible connection between the battery top and the base of the riser, the seating surface of the standpipe lid, the flexible connection between the collector main and the gooseneck, the ministandpipe lid, and the flexible connection between the battery top and the jumper pipe ministandpipe.

(p) "Start-up" means the setting in operation of a process or process equipment for any purpose.

(q) "State-only enforceable" means that the limitation or condition is derived solely from the act and the air pollution control rules and is not federally enforceable. State-only enforceable requirements include R 336.1224, R 336.1225, R 336.1901, any permit requirement established solely pursuant to R 366.1201(1)(b), or any other regulation that is enforceable solely under the act and is not federally enforceable.

(r) "Stationary source" means all buildings, structures, facilities, or installations that emit or have the potential to emit 1 or more air contaminants, which are located at 1 or more contiguous or adjacent properties, which are under the control of the same person, and which have the same 2-digit major group code associated with their primary activity. In addition, a stationary source includes any other buildings, structures, facilities, or installations which emit or have the potential to emit 1 or more air contaminants, which are located at 1 or more contiguous or adjacent properties, which are under the control of the same person, and which have a different 2-digit major group code, but which support the primary activity. Buildings, structures, facilities, or installations are considered to support the primary activity if 50% or more of their output is dedicated to the primary activity. Major group codes and primary activities are described in the standard industrial classification manual. Notwithstanding the provisions of this subdivision, research and development activities, as described in R 336.1118, may be treated as a separate stationary source, unless the research and development activities support the primary activity of the stationary source.

(s) "Stationary vessel" means any tank, reservoir, or container used for the storage of any volatile organic compound which is not used to transport such volatile organic compound and in which no manufacturing process or part thereof takes place.

(t) "Stencil coat" means a coating that is applied over a stencil to a plastic part at a thickness of 1 mil or less of coating solids. Stencil coats are most frequently letters, numbers, or decorative designs.

(u) "Styrene devolatilizer unit" means equipment performing the function of separating unreacted styrene monomer and other volatile components from polystyrene in a vacuum devolatilizer.

(v) "Styrene recovery unit" means equipment performing the function of separating styrene monomer from other less volatile components of the styrene devolatilizer unit's output. The separated styrene monomer may be reused as raw material in the manufacturing of polystyrene resin.

(w) "Submerged fill pipe" means any fill pipe that has its discharge opening entirely submerged when the liquid level is 6 inches above the bottom of the vessel or, when applied to a vessel that is loaded from the side, means either of the following:

(i) Any fill pipe that has its discharge opening entirely submerged when the liquid level is 18 inches above the bottom of the vessel.

(ii) Any fill pipe that has its discharge opening entirely submerged when the liquid level is twice the diameter of the fill pipe above the bottom of the vessel, but in no case shall the top of such submerged fill pipe be more than 36 inches above the bottom of the vessel.

(x) "Sufficient evidence," a term of art, means either of the following:

(i) In human epidemiological studies, that the data indicate that there is a causal relationship between the agent and human cancer.

(ii) In animal studies, the data suggest that there is an increased incidence of malignant tumors or combined malignant and benign tumors in any of the following:

(A) Multiple species or strains.

(B) Multiple experiments.

(C) To an unusual degree in a single experiment with regard to high incidence, unusual site or type of tumor, or early age at onset.

(y) "Sulfuric acid plant" means any facility producing sulfuric acid by the contact process by burning elemental sulfur, alkylation acid, hydrogen sulfide, or acid sludge, but does not include facilities where conversion to sulfuric acid is utilized primarily as a means of preventing emissions to the atmosphere of sulfur dioxide or other sulfur compounds.

(z) "Surface coating" means any paint, lacquer, varnish, ink, adhesive, or other coating material applied on a surface.

(aa) "Sweet condensate" means any condensate that is not a sour condensate.

(bb) "Sweet crude" means any crude oil that is not a sour crude.

(cc) "Sweetening facility" means a facility or process that removes hydrogen sulfide or sulfur-containing compounds, or both, from a sour gas, sour crude oil, or sour condensate stream and converts it to sweet gas, sweet crude, or sweet condensate. The term "sweetening facility" does not include a facility or process that operates in an enclosed system and does not emit hydrogen sulfide to the outer air.

(dd) "Sweet gas" means any gas that is not a sour gas.

(ee) "Synthetic natural gas" means any manufactured fuel gas of approximately the same composition and BTU value as that obtained naturally from oil fields.

(ff) "Synthetic organic chemical and polymer manufacturing plant" means a stationary source where the production, as intermediates or final products, of 1 or more of the following chemicals takes place:

(i) Methyl tert-butyl ether.

(ii) Polyethylene.

(iii) Polypropylene.

(iv) Polystyrene.

(v) Synthetic organic chemicals listed in "Standards of Performance for Equipment Leaks of VOC in the Synthetic Organic Chemicals Manufacturing Industry," 40 C.F.R. part 60, subpart VV, adopted by reference in R 336.1902.

(gg) "Synthetic organic chemical and polymer manufacturing process unit" means all process equipment assembled to manufacture, as intermediates or final products, 1 or more of the chemicals listed in the definition of synthetic organic chemical and polymer manufacturing plant. A synthetic organic chemical and polymer manufacturing process unit can operate independently if supplied with sufficient feed or raw materials and sufficient storage facilities for the product.

Notes

Mich. Admin. Code R. 336.1119

1980 AACS; 1981 AACS; 1985 AACS; 1989 AACS; 1990 AACS; 1992 AACS; 1993 AACS; 1995 AACS; 1996 AACS; 2003 AACS; 2012 AACS; 2016 MR 24, Eff. 12/20/2016