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  2. Toxicity characteristic leaching procedure - Wikipedia

    en.wikipedia.org/wiki/Toxicity_characteristic...

    Toxicity characteristic leaching procedure (TCLP) is a soil sample extraction method for chemical analysis employed as an analytical method to simulate leaching through a landfill. The testing methodology is used to determine if a waste is characteristically hazardous, i.e., classified as one of the "D" listed wastes by the U.S. Environmental ...

  3. Lysimeter - Wikipedia

    en.wikipedia.org/wiki/Lysimeter

    The soil contained in the field lysimeter can either be collected as a monolith (i.e., in one piece) or be reconstructed from the different layers present at the sampling site. Most lysimeters contain an opening at the bottom allowing the leachate to be collected and analyzed over time.

  4. Geotechnical investigation - Wikipedia

    en.wikipedia.org/wiki/Geotechnical_investigation

    A USBR soil scientist advances a Giddings Probe direct push soil sampler.. Geotechnical investigations are performed by geotechnical engineers or engineering geologists to obtain information on the physical properties of soil earthworks and foundations for proposed structures and for repair of distress to earthworks and structures caused by subsurface conditions; this type of investigation is ...

  5. Rake (tool) - Wikipedia

    en.wikipedia.org/wiki/Rake_(tool)

    Larger tools (or lawnmower attachments) are more often used for large areas of de-thatching or soil preparation. A concrete rake is a heavy-duty tool with a flat edge for spreading and smoothing wet concrete and a curved side for scooping. Made of durable materials, it is essential for leveling concrete surfaces in construction. [2]

  6. Soil test - Wikipedia

    en.wikipedia.org/wiki/Soil_test

    In agriculture, a soil test commonly refers to the analysis of a soil sample to determine nutrient content, composition, and other characteristics such as the acidity or pH level. A soil test can determine fertility , or the expected growth potential of the soil which indicates nutrient deficiencies, potential toxicities from excessive ...

  7. Ohio EPA will spend $1.1 million to sample soil at hundreds ...

    www.aol.com/ohio-epa-spend-1-1-092439285.html

    ROSEVILLE – The Ohio Environmental Protection Agency will spend $1.1 million to conduct soil sampling of approximatively 700 properties in the Village of Roseville.. From the late 1800s through ...