DRDB: CALAPCD 413 ATTAINMENT POLLUTANT INCREMENTS

CALAVERAS COUNTY AIR POLLUTION CONTROL DISTRICT

RULE 413 - ATTAINMENT POLLUTANT INCREMENTS

The Air Pollution Control Officer shall deny an Authority to Construct for a proposed facility or modification which, pursuant to an analysis performed in accordance with the provisions of Rules 408 and 415, causes an ambient pollutant concentration to exceed the following increments of increase above the baseline concentration:

*Pollutant: Monitoring Interval*				*Maximum Allowable Increase* *(micrograms per cubic meter)*
				*Class I*	*Class II*	*Class III*
Particulate Matter:		Annual Geometric Mean		5	19	37
		24-hour Maximum		10	27	75
Sulfur Dioxide:	Annual Arithmetic Mean			2	20	40
	24-hour Maximum			5	91	182
	3-hour Maximum			2	512	700
Ozone: 1-hour Maximum				20	40	80
Oxides of Nitrogen: Annual Average				10	20	40
Hydrocarbons (corrected for methane):			3-hr Maximum	20	4	80
Lead: Calendar Quarter Average				0.15	0.30	0.60

For any monitoring period other than an annual period, the applicable maximum allowable increase may be exceeded during one such monitoring period per year at any one location.