§ 4-14 EMISSION OF PARTICULATE MATTERS.

   It is unlawful for any person to cause or allow the emission of particulate matter from any air contaminant source in excess of:

   (a)   The maximum allowable emission rate listed in Table I.

   (b)   The maximum allowable emission rate specified as a condition of a permit to install and certificate of operation.

   (c)   The maximum allowable emission rate as determined by Table II below for sources not covered in subsections (a) and (b).

Table I Particulate Matter Emission Schedule
Source		Maximum Allowable Emission at Operation Conditions(a)(Pounds Particulate per 1,000 Pounds Gas)
A.   Fuel burning equipment	Capacity Rating in Pounds Steam per Hour
1.   Pulverized coal (includes cyclone furnaces)	0 – 1,000,000	See Figure 1* for maximum emission limit
	Over 1,000,000	Apply to Director for specific limit
2.   Other modes of firing coal (other than pulverized)	0 – 100,000	0.65
	100,000 – 300,000	0.65 – 0.45(b)
	Over 300,000	Apply to Director for specific limit
B.   Incinerators	Ratings in Pounds Waste per Hour
1.   Residential apartments Commercial and industrial(c,d)	0 – 100	0.65
	Over 100	0.30
2.   Municipal	All	0.30
3.   Pathological(d)	All	0.20
C.   Steel manufacturing
1.   Open hearth furnaces(d)		0.10
2.   Basic oxygen furnaces(d)		0.10
3.   Electric furnaces(d)		0.10
4.   Sintering plants		0.20
5.   Blast furnaces		0.15
6.   Heating and reheating furnaces		0.30
D.   Ferrous cupola operations	Total Plant Melt Rate in Tons/Hours
1.   Production cupolas	0 – 10	0.40
	11 – 20	0.25
	21 and over	0.15
2.   Jobbing cupolas		0.40
3.   Electric arc melting		0.10
4.   Sand handling		0.10
E.   Chemical and mineral kilns		0.20
F.   Asphalt paving plants		0.30
G.   Cement manufacture (up to 15,000 barrels per day kiln capacity)
1.   Kiln — wet or dry process		0.25
2.   Clinker coolers		0.30
3.   Grinding, crushing and other material handling		0.15
Note: It is required that a maximum allowable emission listing be applied for to the Director for any kiln installation which will result in a total plant kiln capacity in excess of 15,000 barrels of cement per day.
H.   Iron ore pelletizing	Gas Flow Rate (SCFM)
Grate kilns and traveling grates	Greater than 600,000	Apply to Director for specific emission limit
	300,000 – 600,000	0.10
	100,000 – 300,000	b:0.15
	100,000 or less	0.20
Footnotes    (a)   Fuel burning and refuse incineration limitations shall be calculated at 50% excess air.    (b)   Emission limitations for specific ratings are determined by linear interpolation between the ranges shown.    (c)   These emission limitations do not apply to domestic incinerators (defined as having not over 5 cubic feet of storage capacity.)    (d)   Afterburner or approved equivalent is mandatory.    (e)   Differentiation between jobbing and production foundries:       Cupolas used in a jobbing foundry are the same as those used in a production foundry and will vary in size only according to the quantity of iron melted per hour. However, the cupolas in a jobbing foundry will be run intermittently for just long enough at one time to pour the molds that are ready on the foundry floor, job by job. This might be for a two to four-hour period per day for any number of days per week.       Production foundry cupolas will melt continuously to pour a succession of molds that are constantly being prepared to receive this continuous flow of iron. This could become 8 hours, 16 hours or 24 hours per day for any number of days per week. *Editor’s note: Figure 1 is not set out herein, but is on file and available for inspection in the office of the City Clerk.

 

Table II Allowable Rate of Emission Based on Process Rate(a)
Process Weight Rate		Rate of Emission Lbs/Hr	Process Weight Rate		Rate of Emission Lbs/Hr
Lbs/Hr	Tons/Hr		Lbs/Hr	Tons/Hr
100	0.05	0.55	16,000	8.00	16.5
200	0.10	0.88	18,000	9.00	17.9
400	0.20	1.40	20,000	10.00	19.1
600	0.30	1.83	30,000	15.00	25.2
800	0.40	2.22	40,000	20.00	30.5
1,000	0.50	2.58	50,000	25.00	35.4
1,500	0.75	3.38	60,000	30.00	40.0
2,000	1.00	4.10	70,000	35.00	41.3
2,500	1.25	4.76	80,000	40.00	42.5
3,000	1.50	5.38	90,000	45.00	43.6
3,500	1.75	5.95	100,000	50.00	44.6
4,000	2.00	6.52	120,000	60.00	46.3
5,000	2.50	7.58	140,000	70.00	47.8
6,000	3.00	8.56	160,000	80.00	49.0
7,000	3.50	9.49	200,000	100.00	51.2
8,000	4.00	10.4	1,000,000	500.00	69.0
9,000	4.50	11.2	2,000,000	1,000.00	77.6
10,000	5.00	12.0	6,000,000	3,000.00	92.7
Footnotes    (a)   Interpolation of the data in this table for process weight rates up to 60,000 lbs/hr shall be accomplished by use of the equation:    E = 4.10P0.67 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 = 55.0P0.11 - 40, where E = rate of emission in lbs/hr and P = process weight in tons/hr.    Process weight — The total amount of all material introduced into a source operation, including solid fuels, but excluding liquid fuels and gaseous fuels when these are used as fuels and air introduced for purposes of combustion.    Process weight rate — For continuous or long-term operations: The total process weight for the entire period of operation or for a typical portion thereof, divided by the number of hours of such period or portion thereof.    For batch operations: The total process weight for a period which covers a complete operation or an integral number of cycles, divided by the hours of actual process operation during the period.

 

(Ord. 2494, passed 5-12-1975)