2020-02-26_REVISION - M2002004 - Laserfiche WebLink

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Title: Sampling and Analysis Plan for Environmental Control Number. Revision Date: page 10 of 30 Groundwater Monitoring I PUE.EN.D.026.04 2/19/2020 preparation and analysis of associated field rinsate blanks. Clean and disposable nitrile gloves will be worn during purging and sampling activities. Due to the use of dedicated equipment and disposable supplies,the only equipment typically requiring decontamination are the water level meter and water quality measurement probes. Where equipment decontamination is required,the following procedures can be used: • Spray with Alconox detergent followed by distilled water rinse,or • Triple water rinse with distilled water,and • Air dry or paper towel dry the decontaminated equipment and either use it immediately, or wrap and/or store it appropriately for later use. Sampling equipment will be decontaminated or bagged (if disposable) between each sample location. Disposable sampling equipment and supplies (bailers, bailer cord, gloves, etc.) will be disposed in site waste containers.Purge water will be disposed on the ground near the wells. 3.6 Sample Handling and Custody Requirements This section describes the methods used to ensure samples are managed in accordance with sampling handling and chain of custody requirements. 3.6.1 Sample Handling? Samples will be packaged and preserved in a manner prescribed by the applicable analytical method. Method-specific holding time requirements will be observed. Table 2 provides the relevant holding times by analyte/method for the GW-Compliance suite. 3.6.2 Sample Custody Documentation The following describes the proper procedure for labeling and documenting samples once they are collected. Sample Labeling Individual sample bottles are labeled by the lab for each respective analytical test or group of tests and grouped into individual clear plastic bags. All sample containers shall be labeled using waterproof ink directly on the bottle or bottle label if such a label is present. Following collection,sample bottles for each sample location ID shall be placed in their respective plastic bags provided by the lab containing each bottle set for protection and grouping and sealed by either twist-tie or Ziploc mechanism. Information provided on each bottle set bag and the individual sample bottles and/or labels shall include: • Site or project name; • Sample location ID; • Sample collection date and time; • Sampler's name or initials. Chain of Custody Forms Record all samples chronologically on chain of custody forms.All entries to chain of custody documents will be made in ink.The chain of custody form requires the following information to be accurately written in ink: • Contact information for report receipt(GCC Rio Grande) • Contact information for report copy receipt(consultant or other relevant party)