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BEST ENVIRONMENTAL <br /> 339 Stealth Court <br /> Livermore, California 94551 <br /> (925) 455-9474 FAX (925) 455-9479 <br /> June 27, 2020 <br /> Attn: Lisa Middleton <br /> San Joaquin Valley APCD <br /> 4800 Enterprise Way <br /> Modesto, CA 95356 <br /> Re: Revised Source test plan for compliance emissions testing of the MAPCO single stage scrubber system serving facility finishing <br /> operations located at Metal Finishing Solutions, Inc. , 1325 El Pinal Drive, Stockton, CA 95205 . (ATC N-811 =26-3). <br /> District ATC Description Limits <br /> MAPCO scrubber system abating <br /> NA43241 0 emissions from an aluminum NOx 52. 8 lbs/day <br />! <br /> coating line <br /> Dear Lisa: <br /> BEST ENVIRONMENTAL (BE) proposes the following methodology to perform the compliance test program referenced above. <br /> • Moisture, volumetric flow rate and molecular weight will be determined using EPA/CARB Methods 1 , 2, 3 and 4 in <br /> conjunction with the testing. Ambient methods/factors will be used for moisture, molecular weight and 02/CO2 concentrations <br /> determinations. <br /> • Triplicate 30•minute test runs will be performed for NOx at the outlet using EPA Method 7E at normal operating conditions. <br /> • Capture efficiency compliance will be determined during the test series using EPA Method 204 . Manometer reading will be <br /> taken at any doors or natural draft openings. <br /> All relevant process and operating parameters will be provided by the facility following the testing. <br /> • The technical report will be submitted to MFSI within four weeks of completion of the field sampling. The report will include <br /> a test program description and tables presenting concentrations (ppm) , emission rates (lbs/hr) and removal efficiencies for all <br /> relevant parameters. All supporting documentation (Chain of Custody, field data sheets, calculation sheets and calibration <br /> records) will be attached in the appendix of the report. <br /> Pending your approval, the test program is scheduled for August 6, 2020 with an approximate testing start time of 9 :00 am. Mr. <br /> Cory Dehl from MFSI is coordinating the testing and he can be reached at (925) 872- 1263 . If you have any questions concerning <br /> this source test plan, please contact the at (925) 455 -9474 . <br /> Best regards, <br /> Bobby Asfour <br /> Sr. Project Manager <br /> Cc: Cory Dehl, MFSI <br /> l <br /> z: quot\2020 %Ip\sjvapcd- orthV:%iced-protocol-fuN-doc\' <br />