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  2. Geotechnical investigation - Wikipedia

    en.wikipedia.org/wiki/Geotechnical_investigation

    This test is used by Caltrans for pavement design, replacing the California bearing ratio test. Soil compaction tests Standard Proctor (ASTM D698), Modified Proctor (ASTM D1557), and California Test 216. These tests are used to determine the maximum unit weight and optimal water content a soil can achieve for a given compaction effort.

  3. Soil test - Wikipedia

    en.wikipedia.org/wiki/Soil_test

    A soil test is a laboratory or in-situ analysis to determine the chemical, physical or biological characteristics of a soil. Possibly the most widely conducted soil tests are those performed to estimate the plant-available concentrations of nutrients in order to provide fertilizer recommendations in agriculture.

  4. Geotechnical engineering - Wikipedia

    en.wikipedia.org/wiki/Geotechnical_engineering

    Subsurface exploration usually involves in-situ testing (for example, the standard penetration test and cone penetration test). The digging of test pits and trenching (particularly for locating faults and slide planes) may also be used to learn about soil conditions at depth. Large-diameter borings are rarely used due to safety concerns and ...

  5. Scientists link surge in heavy metals in soil to California ...

    www.aol.com/news/scientists-surge-heavy-metals...

    Scientists at San Jose State University say that a large fire that burned at a battery plant in Monterrey County, California earlier this month has left heightened levels of heavy metals in a ...

  6. Texas State Soil and Water Conservation Board - Wikipedia

    en.wikipedia.org/wiki/Texas_State_Soil_and_Water...

    The Texas State Soil and Water Conservation Board (TSSWCB) is a state agency of Texas, headquartered in Temple. [1] The agency enforces the state's soil and water conservation laws and coordinates conservation and nonpoint source pollution abatement programs. The Texas State Legislature created the agency in 1939. [2]

  7. List of U.S. state soils - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._state_soils

    This is a list of U.S. state soils. A state soil is a soil that has special significance to a particular state. Each state in the United States has selected a state soil, twenty of which have been legislatively established. These official state soils share the same level of distinction as official state flowers and birds.

  8. List of state soil science licensing boards - Wikipedia

    en.wikipedia.org/wiki/List_of_State_Soil_Science...

    South Carolina Soil Classifiers Advisory Council Performs functions similar to a state licensing board. Tennessee; Texas Board of Professional Geoscientists; Virginia Board for Professional Soil Scientists and Wetland Professionals; Wisconsin Soil Science Section, Joint Board of Professional Geologists, Hydrologists and Soil Scientists

  9. Lake Bob Sandlin State Park - Wikipedia

    en.wikipedia.org/wiki/Lake_Bob_Sandlin_State_Park

    The land in the area was occupied by the Caddo people until the mid-1800s. Fort Sherman, a Republic of Texas stockade, was established by 1838, and eventually the land was used for farming and ranching by settlers, until it was acquired by Texas Parks and Wildlife Department in 1978. [3] Lake Bob Sandlin is located on Big Cypress Creek.

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