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# Texas SIP: 30 TAC 111.[F] Particulate Matter; SIP effective 05/31/72 until May 28, 2009

Regulatory Text:
TX Chap 111 (Reg 1) - Control of Air Pollution from Visible Emissions and
Particulate Matter; SIP effective until 2009.05.28

[F]  PARTICULATE MATTER

Outline:
Rule 105.1 [Allowable Emissions]
Rule 105.2 [Ground Level Concentrations]
Rule 105.3 [Emissions Limits for Solid Fossil Fuel Fired Steam Generators]

Rule 105.1 [Allowable Emissions]

(Approved by EPA 05/31/72 (37 FR 10895) at 52.2270(b) effective 05/31/72.)

01     No person may cause, suffer, allow, or permit emissions of particulate matter from any source to exceed the allowable rates specified in Table 1 and/or Figure 1.

01     Rule 105.11.  If a source has an effective stack height less than the standard effective stack height as determined from Table 2 and/or Figure 2, the allowable emission level must be reduced by multiplying it by:

(Effective Stack Height / Standard Effective Stack Height)^2

01     Rule 105.12.  Effective stack height shall be calculated by the following equation:

he = h + 0.083*ve*De*[1.5 + 0.82*((Te -550)/Te)*De]

Where:
he = Effective stack height in feet (ft)
h = Physical stack height above ground level in feet (ft)
ve = Stack exit velocity in feet per second (ft/sec)
De = Stack exit inside diameter in feet (ft)
Te = Stack exit temperature in degrees Rankine (degrees R)

TABLE 1.  ALLOWABLE PARTICULATE EMISSION RATES FOR SPECIFIC FLOW RATES

Effluent
Flow Rate
acfm
Rate of
Emission
lb/hr
acfm lb/hr
1,000 3.5
2,000 5.3
4,000 8.2
6,000 10.6
8,000 12.6
10,000 14.5
20,000 22.3
40,000 34.2
60,000 44.0
80,000 52.6
100,000 60.4
200,000 92.9
400,000 143.0
600,000 184.0
800,000 219.4
1,000,000 252.0

Interpolation and extrapolation of the data in this table shall be accomplished by the use of the equation E = 0.048 q^0.62 where E is the allowable emission rate in lb/hr and q is the stack effluent flow rate in acfm.

FIGURE 1, Allowable Emission Rates for Specific Flow Rates, is not included because it not possible to computerize it.  It is a log-log graph.  Stack effluent Flow Rate (1000 acfm to 1,000,000 acfm) is on the horizontal axis.  Allowable Particulate Emissions Rate (1 lb/hr to 500 lb/hr) is on the vertical axis.

TABLE 2.  STANDARD EFFECTIVE STACK HEIGHT BASED ON SPECIFIC FLOW RATES

Effluent
Flow Rate
acfm
Standard Effective
Stack Height
ft
1,000 12
2,000 15
4,000 19
6,000 22
8,000 24
10,000 26
20,000 34
40,000 43
60,000 49
80,000 55
100,000 59
200,000 75
400,000 96
600,000 110
800,000 122
1,000,000 132

Interpolation and extrapolation of the data in this table shall be accomplished by the use of the equation He = 1.05 q^0.35 where He is the standard effective stack height in feet and q is the stack effluent flow rate in acfm.

FIGURE 2, Standard Effective Stack Height Based on Specific Flow Rates, is not included because it not possible to computerize it.  It is a log-log graph.  Stack effluent Flow Rate (1000 acfm to 1,000,000 acfm) is on the horizontal axis.  Standard Effective Stack Height (10 ft. to 1000 ft.) is on the vertical axis.

******************* end rule 105.1 ********************87h**

Rule 105.2 [Ground Level Concentrations]

(Approved by EPA 05/31/72 (37 FR 10895) at 52.2270(b) effective 05/31/72.)

01     No person may cause, suffer, allow, or permit emissions of particulate matter from a source or sources operated on a property or from multiple sources operated on contiguous properties to exceed any of the following net ground level concentrations.

01     Rule 105.21.  One hundred (100) micrograms per cubic meter (ug/m^3) of air sampled, averaged over any five (5) consecutive hours.

01     Rule 105.22.  Two hundred (200) micrograms per cubic meter (ug/m^3) of air sampled, averaged over any three (3) consecutive hours.

01     Rule 105.23.  Four hundred (400) micrograms per cubic meter (ug/m^3) of air sampled, averaged over any one (1) hour period.

NOTE TO READER:  From May 30, 1998 until June 10, 2004, Rule 105.21 was incorrectly worded in this web site as follows:

"01     Rule 105.21.  One hundred (100) micrograms per cubic meter (ug/m^3) of air sampled, averaged over any three (3) consecutive hours."

"...three (3) consecutive hours." should have read "...five (5) consective hours." as shown in the regulation above.