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  2. Drainage system (agriculture) - Wikipedia

    en.wikipedia.org/wiki/Drainage_system_(agriculture)

    The choice between a subsurface drainage system by pipes and ditches or by tube wells is more a matter of technical criteria and costs than of agricultural criteria, because both types of systems can be designed to meet the same agricultural criteria and achieve the same benefits. Usually, pipe drains or ditches are preferable to wells.

  3. Two-stage drainage ditch - Wikipedia

    en.wikipedia.org/wiki/Two-stage_drainage_ditch

    "Over a mile long reach [of the water channel] adds up to over 1.5 acre of land needed for the two stage drainage ditch design". This acreage of land may already be currently used for other purposes or contains infrastructure and subsurface gas or sewer lines. Thus, the larger the channel is, the more soil, and thus, increased funds required to ...

  4. Central Valley Project - Wikipedia

    en.wikipedia.org/wiki/Central_Valley_Project

    The California Water Plan is the state's official water policy with the latest version completed in 2013; Water in California Summarizes the history and details of the state's water policy issues. California's Irrigation district's 92 public self-governing subdivisions [613] of the State that purchase water from the CVP; Central Valley Ag - CVA

  5. United Concrete Pipe Corporation - Wikipedia

    en.wikipedia.org/wiki/United_Concrete_Pipe...

    United Concrete Pipe Corporation was a manufacturing and construction company based in Southern California. It was in the business of constructing and installing concrete water pipes for irrigation, water lines, sewers, and drains, and after 1930 expanded into general construction, building concrete bridges, tunnels, concrete roads, and ...

  6. List of canals in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_canals_in_the...

    These are man made canals in each state that have been given a name and may consist of a narrow irrigation or drainage ditch to a large ship, municipal water and/or irrigation canal. States with extensive agricultural acreage may have many hundred to thousands of canals.

  7. List of California hydrologic regions - Wikipedia

    en.wikipedia.org/wiki/List_of_California...

    California groundwater basins, subbasins, and hydrologic regions. The California Department of Water Resources recognizes 10 hydrologic regions and three additional drainage areas within the U.S. state of California. The hydrologic regions are further subdivided into 515 groundwater basins. [1]

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