SANTA BARBARA COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 305 - PARTICULATE MATTER CONCENTRATION - SOUTHERN ZONE
(Adopted 5/1/1972, readopted 10/23/1978)

A person shall not discharge into the atmosphere from any source, particulate matter in excess of the concentration shown in Table 305(a).

Where the volume discharged falls between figures listed in the table, the exact concentration permitted to be discharged shall be determined by linear interpolation.

The provisions of this Rule shall not apply to emissions resulting from the combustion of liquid or gaseous fuels in steam generators or gas turbines.
 

Table 305(a)
Particulate Matter Concentration
Southern Zone
 


 
 
 
 

Volume 

Discharged - Cubic 

Feet per Minute 

Calculated as Dry 

Gas at Standard 

Conditions 

Maximum 

Concentration of 

Particulate Matter 

Allowed in 

Discharged Gas - 

Grains per Cubic 

Foot of Dry Gas 

at Standard 

Conditions 


 
 
 
 

Volume 

Discharged - Cubic 

Feet per Minute 

Calculated as Dry 

Gas at Standard 

Conditions 

Maximum 

Concentration of 

Particulate Matter 

Allowed in 

Discharged Gas - 

Grains per Cubic 

Foot of Dry Gas 

at Standard 

Conditions 

1000 or less 0.200 20000 0.0635
1200 0.187 30000 0.0544
1400 0.176 40000 0.0487
1600 0.167 50000 0.0447
 
1800 0.160 60000 0.0417
2000 0.153 70000 0.0393
2500 0.141 80000 0.0374
3000 0.131 100000 0.0343
 
3500 0.124 200000 0.0263
4000 0.118 400000 0.0202
5000 0.108 600000 0.0173
6000 0.101 800000 0.0155
 
7000 0.0949 1000000 0.0142
8000 0.0902 1500000 0.0122
10000 0.0828 2000000 0.0109
15000 0.0709 2500000 or more 0.0100