GREAT BASIN UNIFIED AIR POLLUTION CONTROL DISTRICT

RULE 207 - INSTACK MONITORING - 100 TPY SOURCES
(Adopted 9/05/74; Revised 5/12/93)

A person operating or using any article, machine, equipment, or other contrivance for which these rules require a permit and which emits into the atmosphere 100 tons or more per year of non-methane hydrocarbons, oxides of nitrogen, oxides of sulfur, reduced sulfur compounds, particulate matter or more per year of carbon monoxide shall install and maintain in good operational conditions continuous monitoring devices for the pollutants and sources designated.

TABLE I

PERFORMANCE SPECIFICATIONS

A. Monitoring System for SO2 and Nox _____________________________________________________________

_________Parameter______________________Specification________
Accuracy* < 20% of the mean value of the reference method test data
Calibration Error* < 5% of each (50%, 90%) Calibration gas mixture value
Zero Drift (2 hour)* 2% of span
Zero Drift (24 hour)* 2% of span
Calibration drift (2-hour)* 2% of span
Calibration Drift (24-hour)* 2.5% of span
Response Time 15 minutes maximum
Operational Period 168 hours minimum
 
B. Monitoring System for O2 or CO2 ____________________________________________________________

_________Parameter______________________Specification_______
Zero drift (2 hours)* < 0.4% O2 or CO2
Zero drift (24 hours)* < 0.5% O2 or CO2
Calibration drift (2 hours)* < 0.4% O2 or CO2
Calibration drift (24-hour)* < 0.5% O2 or CO2
Operational period 168 hours minimum
Response time 10 minutes

* Expressed as sum of absolute mean value plus 95 percent confidence interval of a series of tests.