Abstract
The results of a 30-day sulfur dioxide monitoring program conducted at a utility boiler equipped with a limestone scrubber are presented. Program objectives were twofold: to demonstrate the reliable use of continuous monitoring equipment for determining scrubber performance and to support the proposed New Source Performance Standards (NSPS) published in the September 19, 1978, Federal Register. In general, continuous monitoring equipment is reliable as a source surveillance method. Results of the data collected indicate that the test site monitored was capable of performing under the guidelines of the proposed NSPS, and were incorporated in the final NSPS promulgated on June 11, 1979.