dry well
underground structure that disposes of unwanted water, most commonly storm water runoff, by dissipating it into the groundwater
en-GB/ˈdɹaɪ ˈwɛl/
en-US/ˈdɹaɪ ˈwɛl/
underground structure that disposes of unwanted water, most commonly storm water runoff, by dissipating it into the groundwater