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Best Practices in Sample Collection and Analysis for Environmental Monitoring

Learn about proper collection and storage procedures for groundwater and soil samples, including tips on temperature control and timely analysis. Understand the frequency of sample collection and various techniques for monitoring water content, chemical concentration, and soil properties. Ensure the quality of your data by following EPA protocols and defining clear objectives.

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Best Practices in Sample Collection and Analysis for Environmental Monitoring

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  1. Glass bottles VS plastic bottles. • Temperature control during transportation. • Acidify samples if used for NO3-N analysis. • Store samples at 4oC until analyzed. • EPA protocol is to analyze within 15 days of collection.

  2. When to collect Groundwater Samples? • Weekly, monthly, 3-4 time in a year?? • Define objectives • For drinking water wells – weekly/monthly (weekly for public wells, monthly/six month for industrial wells) • Quality VS quantity

  3. Vadose Zone Monitoring • Water content and Chemical conc. • Soil moisture potential – Tensiometers • Soil water contents • Soil salinity • Temperature • Soil pore water sampling

  4. Soil Pore Water Sampling • Soil samples Extract them for either NO3-N or pesticides • Suction lysimeters • Caissiosn lysimeters • Trench lysimeters • Drainage systems • Piezometers • Single or multiple sampling wells

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