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<br /> <br /> <br />6-1 <br /> <br />Section 6 <br />Instrument and Equipment Testing, <br />Inspection, and Maintenance <br />The instruments and/or equipment used during the Project will be inspected and maintained <br />according to the sections below. <br />6.1 Field Equipment <br />The following field measurement equipment may be used during the project: <br />• Handheld multi-parameter meter (YSI ProDSS Multimeter or equivalent). This meter is capable <br />of measuring DO, temperature, pH, ORP, and electrical conductivity. The meter requires <br />calibration before each sampling event. <br />• Field turbidimeter (Hach Model 2100Q Portable Turbidimeter or equivalent). This meter will be <br />used to measure turbidity in the field. The meter employs a tungsten-filament light source and <br />two light detectors to measure scattered (at 90°C) and transmitted light. The unit has a reported <br />range of 0.01 to 1000 nephelometric turbidity units (NTU). <br />6.2 Laboratory Equipment <br />Laboratories providing support for the project will maintain analytical equipment in accordance with <br />relevant SOPs, which include those specified by the manufacturer and those specified by the <br />method. The laboratories will maintain a logbook documenting equipment inspections and <br />preventive and corrective maintenance. <br /> <br /> <br />