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SOP for Surface Water Sampling — Hansen Project 4 <br />measured in -situ or in the sample collection bottle. If field parameters are measured in the sample <br />collection bottle, triple rinse the bottle in the stream after field parameters are measured and before <br />collecting the sample. <br />Collect the sample: <br />a) Rinse the pole and swing sampler with clean (distilled) water, then attach a clean <br />(decontaminated) sample collection bottle. <br />b) When sampling in a stream, the sample will be taken from a point in the middle part of the <br />main stream flow. Reach out with the sampling apparatus and gently lower the container into <br />the water. Care should be taken to avoid collecting items floating in the water and to avoid <br />disturbing any sediment during sample collection. After the container is filled, carefully lift it <br />out of the water and empty it into the appropriate sample bottles as described below. Repeat <br />the process at the sampling location until all of the bottles have been filled. Be sure that the <br />sampling apparatus is returned to the same location each time sample is collected. <br />C) If an area composite sample is to be collected from the sampling areas, use the following <br />technique. At each area, the appropriate quantity of sample (one -third of the sample if there <br />are three areas) will be collected. Reach out with the sampling apparatus and gently lower the <br />container into the water taking care to avoid disturbing any sediment. Care should also be <br />taken to avoid collecting items floating in the water. After the container is filled, carefully lift <br />it out of the water and fill the sample bottles to the appropriate level (one- third, etc.) in the <br />order given below. For each composite sampling area, be sure the sampling apparatus is <br />returned to the same area each time additional sample is collected. Repeat the process until <br />the entire sample has been collected. Cap the sample bottles before proceeding to the next <br />compositing location. <br />d) Bottles should be filled in the following order: <br />1. Volatile organic compounds (VOCs). (if applicable) <br />2. Non - filtered, non - preserved (e.g., major ions, total suspended solids (TSS), sulfate, semi - <br />volatile organic compounds [SVOCs]) <br />3. Non - filtered, preserved with H2SO4 (e.g., nitrogen series [ammonia, nitrates, nitrites, etc.] <br />4. Non - filtered, preserved with HNO3 (radionuclides, total metals) <br />5. Filtered, non - preserved (e.g., total dissolve solids (TDS) <br />6. Filtered, preserved with H2SO4 <br />7. Filtered, preserved with HNO3 (e.g., dissolved metals) <br />8. Miscellaneous parameters <br />Note: Collect sulfate samples before sulfuric acid preserved samples (e.g., nitrogen series). <br />Collect nitrogen series samples before nitric acid preserved samples (e.g., metals and <br />radionuclides). <br />e) Field filter for dissolved metals, TDS, and other parameters requiring field filtration using <br />procedures outlined in Section 3.5. <br />f) If sample bottles are not pre - preserved, add preservative to appropriate bottles. Refer to the <br />QAPP for a list of analytes, bottles, and preservatives. <br />6. Write the sample time and tape over the pre- written labels with clear packing tape. <br />7. Place samples on ice in a cooler. <br />8. Rinse sample collection and field analysis equipment with distilled or deionized water after sample <br />collection is complete at each station. Place the sample collection bottle in a separate compartment, to <br />be decontaminated with Liquinox® or Alconox® according to SOPS. <br />9. Record time of sampling, sample identification (ID), any QC samples, and complete field <br />documentation outlined in Section 5 in the fieldbook. <br />4153A.140129 Whetstone Associates <br />