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2. What are leaking underground storage tanks and how are they ...

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

   More than 516,000 leaks have been cleaned up since Congress directed EPA to begin regulating underground tanks in 1984, but more than 57,000 known sites still await a full cleanup, the EPA said ...

3. Underground storage tank - Wikipedia

   en.wikipedia.org/wiki/Underground_storage_tank

   Tank monitoring systems capable of detecting small leaks (must be capable of detecting a 0.1 gallons-per-hour with a probability of detection of 95% or greater and a probability of false alarm of 5% or less) were installed and other methods were adopted to alert the tank operator of leaks and potential leaks. [citation needed]

4. Water detector - Wikipedia

   en.wikipedia.org/wiki/Water_detector

   Electronic components used to make a simple water detector: battery, resistor, transistor, water sensor and piezoelectric buzzer for audible alert A water detector is an electronic device that is designed to detect the presence of water for purposes such as to provide an alert in time to allow the prevention of water leakage.

5. Leak detection - Wikipedia

   en.wikipedia.org/wiki/Leak_detection

   The primary purpose of leak detection systems (LDS) is to help pipeline controllers to detect and localize leaks. LDS provide alarms and display other related data to the pipeline controllers to assist decision-making. Pipeline leak detection systems can also enhance productivity and system reliability thanks to reduced downtime and inspection ...

6. These Editor-Approved Water-Leak Detectors Can Help ... - AOL

   www.aol.com/editor-approved-water-leak-detectors...

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7. Infrared open-path detector - Wikipedia

   en.wikipedia.org/wiki/Infrared_open-path_detector

   An open path detector usually costs more than a single point detector, so there is little incentive for applications that play to a point detector's strengths: where the point detector can be placed at the known location of the highest gas concentration, and a relatively slow response is acceptable. The open path detector excels in outdoor ...