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  2. What are leaking underground storage tanks and how are ... - AOL

    www.aol.com/news/leaking-underground-storage...

    The average cost to clean up a site is $154,000, according to the Association of State and Territorial Solid Waste Management Officials, an organization that acts as a liaison between state and ...

  3. Leak detection - Wikipedia

    en.wikipedia.org/wiki/Leak_detection

    If a leak occurs, the substances to be measured come into contact with the tube in the form of vapour, gas or dissolved in water. In the event of a leak, some of the leaking substance diffuses into the tube. After a certain period of time, the inside of the tube produces an accurate image of the substances surrounding the tube.

  4. Hydrostatic test - Wikipedia

    en.wikipedia.org/wiki/Hydrostatic_test

    A hydrostatic test is a way in which pressure vessels such as pipelines, plumbing, gas cylinders, boilers and fuel tanks can be tested for strength and leaks. The test involves filling the vessel or pipe system with a liquid, usually water, which may be dyed to aid in visual leak detection , and pressurization of the vessel to the specified ...

  5. Fixing a massive NYC plumbing leak, 55 stories underground - AOL

    www.aol.com/news/fixing-massive-nyc-plumbing...

    New York City is in the midst of a plumbing repair job of monumental proportions. Hard-hat workers are toiling deep underground, 55 stories beneath the Hudson River, to eliminate gushing leaks in ...

  6. Sewerage - Wikipedia

    en.wikipedia.org/wiki/Sewerage

    For example, it is estimated that 500 million m 3 of contaminated water per year can leak into soil and ground-water in Germany. [4] The rehabilitation and replacement of damaged sewers is very costly. Annual rehabilitation costs for Los Angeles County are about €400 million, [5] and in Germany, these costs are estimated to be €100 million. [6]

  7. Water supply network - Wikipedia

    en.wikipedia.org/wiki/Water_supply_network

    A raw water collection point (above or below ground) where the water accumulates, such as a lake, a river, or groundwater from an underground aquifer. Raw water may be transferred using uncovered ground-level aqueducts, covered tunnels, or underground water pipes to water purification facilities. Water purification facilities.

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