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Ryegrass Limited Purpose Landfill and Salefill Closed Landfill <br />Groundwater and Leachate Sampling and Analysis Plan <br />Kittitas County solid Waste <br />The following steps will constitute the decontamination procedure for the groundwater level probe: <br />1. Wash items in a solution of non -phosphate (e.g., Alconox) detergent and tap water <br />2. Rinse with tap water <br />3. Rinse with distilled water <br />4. Air dry or use a clean paper towel <br />Decontaminated equipment will be stored and transported in clean containers or wrapping. <br />The following steps will constitute the decontamination procedure for the flaw through cell: <br />1. Wash items in distilled water <br />2. Pour out the flow through cell <br />3. Rinse with distilled water <br />2.8 Health and Safety Procedures <br />A Site -specific health and safety plan will be developed for this project. Health and safety protocols <br />are set and monitored by employers; therefore, a project -wide plan is not included in this document. <br />Each employer shall provide an appropriate plan under separate cover for their on -site personnel <br />and shall be responsible for the health and safety of their own personnel, <br />2.9 Operation and Maintenance Procedures <br />2.9.1 Calibration and Use of Equipment <br />Before beingtaken to the field, equipment must be cleaned and checked for malfunctions. Meters <br />must be calibrated each morning before they are used in the field, following manufacturers' <br />procedures, using instrument calibration standards prepared according to the manufactures' <br />specifications. In all cases, proper documentation must be made of all calibration procedures for <br />each sampling event, including calibration methodology (one- or two -point calibration, difference, <br />standard concentration, and expiration date). <br />Logbooks should be maintained for all field meters. The logbooks must contain the same information <br />as those for permanent laboratory instruments (serial number, name and model of meter, year <br />purchased, etc.). The books also must contain QC results, maintenance performed by the factory, <br />and calibration notes for each day the equipment is used. Instruments used to measure pH and <br />electrical conductivity should be calibrated at least once each day of sampling. Temperature - <br />measuring devices should be calibrated against a standardized laboratory thermometer at a <br />frequency recommended by the manufacturer. Additional data (e.g., turbidity, dissolved oxygen) <br />should be calibrated in accordance with manufacturer recommendations and documented. <br />April 2024 1 553-1763-010 2.12 <br />Revised May ZU7 4 <br />