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  2. Multilevel groundwater monitoring systems - Wikipedia

    en.wikipedia.org/wiki/Multilevel_groundwater...

    The system can be used to monitor a few zones in boreholes as small as 2-inches, to boreholes up to 20 inches in diameter where numerous depth intervals can be monitored (most installations are in the 4- to 10-inch diameter borehole range) with maximum depth to date of 1,400 feet. Depth-to-water measurements can be made inside the sampling ...

  3. Percolation test - Wikipedia

    en.wikipedia.org/wiki/Percolation_test

    A percolation test consists of digging one or more holes in the soil of the proposed leach field to a specified depth, presoaking the holes by maintaining a high water level in the holes, then running the test by filling the holes to a specific level and timing the drop of the water level as the water percolates into the surrounding soil.

  4. Pennsylvania to partner with natural gas driller on in-depth ...

    www.aol.com/news/pennsylvania-partner-natural...

    The state of Pennsylvania will work with a major natural gas producer to collect in-depth data on air emissions and water quality at well sites, enhance public disclosure of drilling chemicals and ...

  5. Hydraulic head - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_head

    In an aquifer, it can be calculated from the depth to water in a piezometric well (a specialized water well), and given information of the piezometer's elevation and screen depth. Hydraulic head can similarly be measured in a column of water using a standpipe piezometer by measuring the height of the water surface in the tube relative to a ...

  6. Fixing Pa. water systems will cost billions, let local ... - AOL

    www.aol.com/fixing-pa-water-systems-cost...

    Guest column: Act 12 permits a local government to tap the value of their water treatment assets and avoid heavy debt. Fixing Pa. water systems will cost billions, let local governments tap ...

  7. Groundwater recharge - Wikipedia

    en.wikipedia.org/wiki/Groundwater_recharge

    In 2007, on the recommendations of the International Water Management Institute, the Indian government allocated ₹ 1,800 crore (equivalent to ₹ 54 billion or US$630 million in 2023) to fund dug-well recharge projects (a dug-well is a wide, shallow well, often lined with concrete) in 100 districts within seven states where water stored in ...

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  9. Standard penetration test - Wikipedia

    en.wikipedia.org/wiki/Standard_penetration_test

    After the borehole has been advanced to a desired depth and excess cuttings have been removed, testing and sampling can be conducted. The test uses a thick-walled sampling tube, with an outside diameter of 5.01 cm (2 in) and an inside diameter of 3.5 cm (1.375 in), and a length of at least 60 cm (24 in).