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<br />..'.. <br />~'I <br />~ <br /> <br />CTL Environmental Services <br /> <br />an lnc. 500 Company <br /> <br />October 21,2003 <br /> <br />Via Fax (714) 245-8097 <br /> <br />Mr. Kim Hagen <br />CITY OF SANTA ANA <br />RISK MANAGEMENT DIVISION <br />60 Civic Center Plaza <br />Post Office Box 1981 <br />Santa Ana, CA 92702 <br /> <br />RE: <br /> <br />LEAD AIR AND SURFACE TESTING <br />SANTA ANA POLICE DEPARTMENT <br />JOSEPH BOYD FIRE ARM TRAINING CENTER <br />CTL PROPOSAL #A-O23-8632 (revised) <br /> <br />Dear Mr. Hagen: <br /> <br />CTL is pleased to present the following proposal for the above-referenced project. CTL <br />understands the scope of work to include lead air and surface wipe sampling at the site <br />referenced at above. <br /> <br />SCOPE OF WORK <br /> <br />AIR MONITORING <br /> <br />CTL has developed a highly specialized and extensive program for environmental air <br />sampling and air sample analysis lead projects, CTL's procedures include Cal-DHS <br />Certified Lead Project Monitors. <br /> <br />0 Air SamDlin!.! Method - Low Flow: Samples obtained fÌ'om within the abatement work <br />area are collected using self-contained, battery powered low volume pumps, operating at <br />between one (1) and four (4) lpm. These samples are also obtained in accordance with 29 <br />CFR 1926.1101, as above. <br /> <br />0 Calibration of EquiDment: Field calibration of sampling pumps is carried out at the <br />beginning and end of each sampling period. The pumps are checked with pre-calibration <br />rotometers. Rotometers are calibrated against an NBS traceable wet test meter and/or <br />against a bubble buret, on a semi-annual basis. Whenever the flow rate(s) at the <br />beginning and end of each sampling period differs by ten percent (10%) or less, then the <br />average flow rate is utilized. If the flow rate ever differs by greater than ten percent <br />(10%), then the sample is considered void and analytical results are not utilized by CTL. <br /> <br />24404 S. Vennonl Avenue, #307 . HarborCiIy, CA 90710 . TEL: (310) 530-5006 . FAX: (310) 530-0792 <br /> <br />tEXH <br /> <br />