3

- 1 FOR INCLUSION IN WYOMING STATE IMPLEMENTATION PLAN

FROM WYOMING AIR QUALITY STANDARDS AND REGULATIONS

General Emission Standards

CHAPTER 3

Section 2. Emission standards for particulate matter.

(a) Visible emissions of any contaminant discharged into the atmosphere from

any single new source of emission whatsoever as determined by a qualified observer shall

be limited to 20 percent opacity;

Provided, however, that:

(i) An owner or operator of an affected facility of the type described in

Chapter 3, Section 2(h)(i) hereof which has a heat input of not less than 2500 x 10 6 Btu

per hour, may request the Administrator of the Division of Air Quality to determine

opacity of emissions from such affected facility during initial performance tes ts required

by Chapter 6 , Section 2(i) or during other performance tests thereafter.

(ii) Upon receipt from such owner or operator of the written report of the

results of the performance tests required by Chapter 6, Section 2(i) or later performance

tests, the Administrator will make a finding concerning compliance with opacity and

othe r applicable standards. If the Administrator finds that such affected facility is in

compliance with all applicable standards for which performance tests are conducted but

fails to meet any applicable opacity standard, he shall notify the owner or operato r and

advise him that he may petition the Administrator within 10 days of receipt of

notification to make appropriate adjustment to the opacity standard for such affected

facility.

(iii) The Administrator will grant such a petition upon a satisfactory

demonstration by the owner or operator that such affected facility and associated air

pollution control equipment was operated and maintained in a manner to minimize the

opacity of emissions during the performance tests; that the performance tests were

per formed under the conditions prescribed by the Administrator; and that such affected

facility and associated air pollution control equipment were incapable of being adjusted

or operated to meet the applicable opacity s tandard at or near the facility’ s desig ned

capacity.

(iv) The Administrator will establish an opacity standard for such affected

facility meeting the above requirements at a level at which the source will be able, as

indicated by the performance and opacity tests, to meet the opacity standa rd at all times3

- 2 during which the source is meeting the mass or concentration emission standard and

during which the facility and air pollution equipment is being operated properly and

maintained to minimize the opacity of emissions and mass emission rate.

(b) Visible emissions of any contaminant discharged into the atmosphere from

any single existing source of emission whatsoever as determined by a qualified observer

shall be limited to 40 percent opacity. This limitation shall not apply to existing

inc inerators or wood waste burners.

(c) The emission of visible air pollutants from gasoline engines shall be

eliminated except for periods not exceeding five consecutive seconds.

(d) The emission of visible air pollutants from stationary or portable diesel

engines as determined by a qualified observer shall be limited to 30 percent opacity

below 7500 feet elevation except for periods not exceeding ten consecutive seconds.

(e) A ny single source may discharge for a period or periods aggregating not more

than 6 minutes in any hour contaminants;

(i) Having an equivalent opacity of not more than 40 percent as

determined by a qualified observer.

(f) The emission of fugitive dust shall be limited by all persons handling,

transporting, or storing an y material to prevent unnecessary amounts of particulate matter

from becoming airborne to the extent that ambient air standards described in these

regulations are exceeded. Control measures described as follows or any equivalent

method shall be considered appropriate for such control:

(i) Use, where possible, of water or chemicals for control of dust in the

demolition of existing buildings, or structures, construction operations, the grading of

roads or the clearing of land;

(ii) Application of asphalt, oil, water, or suitable chemicals on dirt roads,

materials stockpiles, and other surfaces which can give rise to airborne dusts;

(iii) Installation and use of hood, fans and fabric filters to enclose and

vent the handling of d usty materials; adequate containment methods shall be employed

during sandblasting or other similar operations;

(iv) Covering, at all times when in motion, open bodied trucks,

transporting materials likely to give rise to airborne dust;

(v) Conduct of agricultural practices such as tilling of land, application of

fertilizers, etc. in such a manner as to prevent dust from becoming airborne;

(vi) The paving of roadways and their maintenance in a clear condition;3

- 3 (vii) The prompt removal of earth or other material from paved streets

onto which earth or other material has been transported by trucking or earth moving

equipment, erosion by water, or other means.

(g) The emission of particulate matter from any new source shall be limited as

in dicated in Table I. The emission of particulate matter from any existing source shall be

limited as indicated in Table II.

(i) Process weight per hour means the total weight of all materials

introduced into any specific process that may cause any emis sions of particulate matter,

including solid fuels, but excluding liquids or gases and used solely as fuels, and

excluding air introduced for purposes of combustion, and excluding the weight of any

water, water vapor or steam that may be introduced as part of the total materials.

However, water contained as part of the normal input to a beet pulp dryer process shall be

included as part of the process weight per hour.

(ii) For a cyclical or batch operation, the process weight per hour is

derived by divi ding the total process weight by the number of hours in one complete

operation from the beginning of any given process to the completion thereof, excluding

any time during which the equipment is idle.

(iii) For a continuous operation, the process weigh t per hour is derived by

dividing the process weight for a typical period of time.

(iv) Emission tests related to this regulation shall be measured in

accordance with the requirements of Chapter 3, Section 2(h)(iv).

TABLE I

PROCESS

WEIGHT

RATE

(lbs/hr) EMISSION

RATE

(lbs/hr)

50 0.36

100 0.55

500 1.53

1,000 2.25

5,000 6.34

10,000 9.73

20,000 14.99

60,000 29.60

80,000 31.19

120,000 33.28

160,000 34.853

- 4 200,000 36.11

400,000 40.35

1,000,000 46.72

Interpolation of the data in Table I for the process weight rates up to 60,000 lbs/hr shall

be accomplished by the use of the equation:

E = 3.59 P 0.62 P ≤ 30 tons/hr

and interpolation and extrapolation of the data for process weight rates in excess of

60,000 lbs/hr shall be accomplished by use of the equation:

E = 17.31 P 0.16 P > 30 tons/hr

Where: E = Emissions in pounds per hour.

P = Process weight rate in tons per hour.

TABLE II

PROCESS WEIGHT

RATE RATE OF

EMISSION PROCESS WEIGHT

RATE RATE OF

EMISSION

lb/hr tons/hr lb/hr lb/hr tons/hr lb/hr

100 0.05 0.551 16,000 8 16.5

200 0.10 0.877 18,000 9 17.9

400 0.20 1.40 20,000 10 19.2

600 0.30 1.83 30,000 15 25.2

800 0.40 2.22 40,000 20 30.5

1,000 0.50 2.58 50,000 25 35.4

1,500 0.75 3.38 60,000 30 40.0

2,000 1.00 4.10 70,000 35 41.3

2,500 1.25 4.76 80,000 40 42.5

3,000 1.50 5.38 90,000 45 43.6

3,500 1.75 5.96 100,000 50 44.6

4,000 2.00 6.52 120,000 60 46.3

5,000 2.50 7.58 140,000 70 47.8

6,000 3.00 8.56 160,000 80 49.0

7,000 3.50 9.49 200,000 100 51.2

8,000 4.00 10.4 1,000,000 500 69.0

9,000 4.50 11.2 2,000,000 1,000 77.6

10,000 5.00 12.0 6,000,000 3,000 92.7

12,000 6.00 13.6

Interpolation of the data in Table II for process weight rates up to 60,000 lb/hr

shall be accomplished by use of the equation E = 4.10 P 0.67 , and interpolation and3

- 5 extrapolation of the data for process weight rates in excess of 60,000 lb/hr shall be

accomplished by use of the equation:

E = 55.0 P 0.11

- 40, where E = rate of emission in lb/hr

and P = process weight rate in tons/hr

Notwithstanding any other provision of this Table, any existing air contaminant

source utilizing an air pollution control device having a collection efficiency of 99.5

percent or better, shall be deemed to be in compliance with all provisions of this

regulation. Such efficiency shall be determined by a professional engineer licensed to

practice in Wyoming and all expenses incurred in such determination shall be defrayed

by the person responsible for the emission.



### FIGURE 1 PARTICULATE EMISSION LIMITS

(h) The emissions of particulate matter from existing sources where fuel burning

equipment is used for indirect heating shall be limited as shown in Figure 1 and shall be

applicable to equipment burning solid fuel. The emissions of particulate matter from new

sources where fuel burning equipment is used for indirect heating shall be limited to 0.10

pound per million Btu input (0.18 grams per million calories) maximum 2

- hour average.

T he visible emissions of particulate matter from new sources where fuel burning

equipment is used for indirect heating shall be no greater than 20 percent opacity, except

that 40 percent opacity shall be permitted for not more than 2 minutes in any hour. This

regulation is not applicable to residential or commercial fuel burning equipment with a

heat input of less than 10 x 10 6 B tu/hr and used exclusively to produce building heat.3

- 6 (i) This regulation applies to installations in which fuel is burned for the

primary purpose of producing steam, hot water, or hot air or other indirect heating of

liquids, gases, or solids, and, in the course of doing so, the products of combustion do not

come into direct contact with process materials. Fuels include those such as coal, coke,

lignite, fuel oil, and wood, but do not include refuse. When any products or byproducts

of a manufacturing process are burned for the same purpose or in conjunction with any

fuel, the same maximum emission limitations shall apply.

(ii) The heat content of coal shall be determined according to the ASTM

method D

- 271

- 64 Laboratory Sampling and Analysis of Coal and Coke or ASTM method

D

- 2015

- 62T Gross Calorific Value of Solid Fuel by the Adiabatic Bomb Calorimeter,

which publications are made a part of this regulation by reference.

( i i i ) For purposes of this regulation, the heat input shall be the aggregate

heat content of all fuels whose products of combustion pass through a stack or stacks, or

the heat input value used shall be the equ ipment manufacturer or designer’ s guaranteed

maximum input, whichever is greater. The total heat input of all fuel burning units at a

plant or on a premise shall be used for determining the maximum allowable amount of

parti culate matter which may be emitt ed.

( i v ) The amount of particulate matter emitted shall be measured by source

test methods specified by the Administrat or. The reference methods shall be test methods

1 through 5, Appendix A, 40 CFR part 60.

(i) The emission of particulate matter from any incinerator shall be limited to:

(i) 0.20 pound per 100 pounds (2 grams per kilogram) of refuse charged

as dete rmined by a source test method approved by the Division for stationary sources as

described in S ubs ection (g)(iv) of this regulation ;

(ii) A shade or density equal to but not greater than 20 percent opacity as

determined by a qualified observer

.

(j) Where the presence of uncombined water is the only reason for failure of an

emission to meet the opacity requirements of Chapter 3, Section 2 of this regulation, such

opacity requirements shall not apply.

Section 9. Incorporation by reference.

(a) Code of Federal Regulations (CFR). All Code of Federal Regulations (CFR),

including their Appendices, cited in this Chapter, revised and published as of July 1,

2012 , not including any later amendments, are incorporated by refe rence. Copies of the

C ode of Federal Regulations are available for public inspection and copies can be

obtained at cost from the Department of Environmental Quality, Division of Air Quality,

122 W. 25 th Street, Cheyenne, Wyoming 82002. Copies of the CFRs can also be3

- 7 obtained a t cost from Government Institutes, 15200 NBN Way, Building B, Blue Ridge

Summit, PA 17214.

(b) American Society for Testing and Materials (ASTM). All ASTM standards

cited in this Chapter , revised and published as of July 1, 2012 , not including any later

amendments, are incorporated by reference. Copies of the ASTM standards are available

for public inspection and copies can be obtained at cost from the Department of

Environmental Quality, Division of Air Quality, 122 W. 25 th Str eet, Cheyenne, Wyoming

82002. Copies can also be obtained at cost from the American Society for Testing and

Materials, 100 Barr Harbor Drive, Post Office Box C700, West Conshohocken, PA

19428

- 2959.