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1 <br /> kNJ KLEIfVFELI] ER <br /> 3. The residual pressures are measured just prior to collecting the sample. The water line is <br /> then opened and nitrogen gas applied to the air line until either fluid or air is discharged <br /> (for dry lysifrneters)_ The sample is contained in a 1 liter unpreserved bottle and the <br /> volume recovered is estimated. The fluid is then poured into appropriate preserved or <br /> unpreserved bottles of the requested analysis. <br /> 4. After the sample is collected, the lysimeter vacuum is reset to the manufacturer's <br /> recommended value. 1-lie lysimeter is also tested to evaluate potential leaks that.may <br /> cause vacuum pressure loss. <br /> B-6 Leachate Monitoring <br /> 1. The leachate riser or wells are first opened and allowed to equilibrate with the <br /> atmosphere. <br /> 2. The leachate elevation is them measured from a set location using a conductivity-based <br /> water-level meter. The level is generally measured from a surveyed .mark on the north <br /> rine o1'the casing. <br /> 3. A leachate sample is then collected using a clean, disposable bailer. <br /> 4. Tlie sample is labeled and immediately stored in an iced cooler pending transport to the <br /> analytical laboratory. The sample is logged on a chain-of-custody. <br /> B-7 Surface Water Monitorin;, <br /> 1. Prior to collecting Surface water samples, the depth of Nvater is estimated at a designated <br /> location in the surface \vater body. <br /> 2. Surface water samples are collected directly from the stream or surface water using a <br /> clean unpreserved plastic bottle, disposable bailer, bailer, coliwasa, D1pstikTM, dipper, <br /> peristaltic pump, etc., or by directly filling the sample containers. Sampling equipment <br /> will either be disposable. dedicated or decontaminated in accordance with the above- <br /> defined decontamination protocols. Care is taken not to disturb the stream bottom and <br /> introduce sediment in the sample. The fluid is then poured into appropriate preserved or <br /> unpreserved bottles for the requested analysis. <br /> 3. The sample is labeled and immediately stored in an iced cooler pending transport to the <br /> analytical laboratory. 1-he sample is logged on a chain-of-custody. <br /> 20-2864-02.E03/2019R032 Page 13-7 <br /> Copyright 1998. Klcinfelcler. Inc. January 14, 1999 <br />