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Certificate of Comptiance <br />SYSTEM CLEANED: <br />System: <br />Building: <br />LOCATION: <br />Street: <br />City: <br />State: <br />REQUESTED BY: <br />Name: <br />Company: <br />Date of Pr~Op Cleaning: <br />Heatin~ Recovery System <br />Courthouse Square <br />555 Court Street NE <br />Salem <br />Ore~on Zip: <br />Larry Stick(ev <br />Ore~on Cascade Plumbing & Heating Inc <br />Seatember 20, 2000 <br />Strength of Soluti~n: .5% Solution of CHEMCOA 625, cleaner <br />Time of Solution Circula6ou: 24 Hours <br />Date System Flushed: September 21, 2000 <br />Comments: Svstem was flushed until its water was the same as the make-up water in <br />pH and conductivitv. <br />CHEMICAL CORPORATION OF AMERICA <br />L~ De~v~~ <br />Cliff Dearborn <br />CHEMCOA Service Engineer <br />September 22, 2000 <br />Date <br />19535 S. W. 129TH AVENUE • TWALATIN, OR 97062-8076 • PHONE 503/885-8181 ~ FAX 503/885-9701 <br />CCB #80446 <br />Pre-Operational Cleaning Report <br />