ARCHIVED REPORTS XR0011212 - Laserfiche WebLink

Home Browse Search

Page 4,,apa-daz Plasues Ird puarcff were collected again on September 6, 1994 and sent to Air Toxics Limited of Folsom IAutomatic engine monitoring includes continuous recording of cumulative hours of operation, engine RPM, auxiliary fuel consumption,water temperature, oil pressure, influent CFM, daily ' hours of operation, daily average well (influent) cubic feet per minute (CFM), daily total cubic feet (CF) of vapor extracted, and daily total CF of auxiliary fuel used Summaries are on file with Apache These parameters are used to assure system longevity, to evaluate and optimize Idestruction performance, to fulfill requirements of the ATC and to evaluate the effectiveness of the system in mitigating the fugitive VOCs in the site soils The flow rate to the IC engine is measured automatically by an in-line flow meter During normal operation it is the combined flow from both the deep and shallow wells but on September 1 and 20 ' vapor was extracted from each well separately and flow rates were measured to compare the flow rates and thus assess the contnbution of each well to the stream when vapor is being drawn from ' both wells simultaneously Data from September 6 are correlated with PID data and are used below to calculate the amount of VOCs destroyed and the amount of VOCs discharged in the effluent stream 4.0 MONITORING SUMl1IARV Data collected using the PID, by laboratory analysis and by the automated system are presented ' belokv ui l ables 1 and 2 Manually collected monitoring data including the PID readings and the analytical results for the first quarter are presented in Table 1 PID readings from the influent and effluent streams were compared to quantitative analytical data collected on the same dates The analytical results of the samples collected on September 6 were concluded to be the most valid based on the ratio of ppmv TPH to mg/L TPH of air Although PID readings were approximately ' 30%`low for the influent and approximately 600% high for the effluent, PID, laboratory and selected IC unit data collected on September 6 are used as the basis for analysis of system Iperformance for the third quarter The data from September 6 are presented in Table 2 5 ' 5.0 DATA ANALYSIS Presented below are calculated values for destruction efficiency, pounds of VOLS released per day and per year as required'in the ATC The destruction efficient calculate y is d using, the laboratory analytical results Calculations of the pounds per day of VOCs in the exhaust use data from the laboratory and automated monitoring Calculations of the pounds por clay destroyed use only data from the automatic monitoring of the IC unit and formulas provided by the systein manufacturer,